2015年12月29日星期二

How concrete cutting



Concrete cutting is the use of water-cooled diamond wire saw cutting machine tracks or opening holes for concrete, demolition, construction speed, low noise, no vibration, good quality, there is no impact on the building structure, is substituted hammer, picks, artificial brazing construction machinery and other large shock hit most advanced technology.
1. Before starting, you should check the motor, the cable is normal, protective earthing, guards, blade meets the requirements, the installation is correct.
2, after the start, the first no-load operation, check the concrete cutting discs running direction, lifting is flexible, operation is abnormal, after everything is normal before operation.
3, cutting thickness should not exceed the specified mechanical factory.
4, to prevent card concrete cutting blades, wire saw and the like.
5, concrete cutting operation, when there is abnormal sound, should immediately stop inspection, troubleshooting before continuing operation.
6, cutting the size of concrete blocks should be strictly calculated.
7, after the operation, the body should be washed, dried sheet rope saw cutting emissions than tank water to recover the cable and store in a dry, well-ventilated place.

2015年12月26日星期六

Concrete cutting blades process often arise use


1: The concrete cutting blade mounting hole is wrong, the blade can not be installed
2: According to the cutting depth requirements, do not know how much the choice of blade
3: The new blade cut does not go
4: The concrete cutting blades life is not long, suddenly tip wear, so that can not be used
5: Blade out tooth
6: blade slipping during use

2015年12月22日星期二

Concrete cutting technology are there?



1 manual cutting. Manual cutting chisel; the more laborious, not very convenient.
2 circular saw cutting wheel. Cut with a diamond saw blade disc; this is mainly cutting walls and the road has two kinds of saw blades, concrete cutting wheels very good. Suitable for houses or roads transformation.
3 wire saw cutting. Diamond wire saw cutting; this advantage that grow as long as there is enough rope saw, how objects can be cut, such as mining cut, diamond wire saw strong Germany is also very good



2015年12月19日星期六

Road cutting

Road cutting film is a cutting tools that is widely used in stone cutting, concrete cutting discs, panels cutting, new and old road cutting, machining marking, grooving and other hard and brittle materials, road cutting sheet mainly consists of two parts; The base body and Segment the base is the main support of the tip portion of the adhesive, and the tip is cut from the part during use, the tip will be in use and continue to consume, while the matrix is not, the reason why head can play a role in cutting because it contains diamond, diamond as the most hard substance, it is friction in the tip cutting objects to be processed while the diamond particles in the head by a metal wrapped inside.

2015年12月15日星期二

Concrete cutting piece of construction requirements and safety measures

Concrete cutting piece of construction requirements and safety measures
1. Before starting, you should check the motor, the cable is normal, protective earthing, protective equipment, cutting discs meets the requirements, the installation is correct.
2, after the start, the first no-load operation, check the cutting disc rotation direction, lifting is flexible, operation is abnormal, after everything is normal before operation.
3, cutting thickness should not exceed the specified mechanical factory.
4, to prevent the card saw, wire saw and the like.
5, concrete cutting discs operation, when there is abnormal sound, should immediately stop inspection, troubleshooting before continuing operation.
6, cutting the size of concrete blocks should be strictly calculated.
7, after the operation, the body should be washed, dried saw wire saw, the remaining water discharge tank, to recover the cable and store in a dry, well-ventilated place.

2015年12月11日星期五

Wheel hardness selection principle


1. The harder the workpiece, the softer the wheel.
2. The larger wheel contact with the workpiece surface, the softer the wheel selection.
3. The grinding and profile grinding wheels should choose harder to keep the wheel shape required accuracy.
Wheel hardness relationship 4. Select the particle size: the larger the size of the wheel, cut off wheel is to avoid debris blockage, generally choose a softer wheel.
5. workpiece material: When grinding non-ferrous metals, rubber, resins and other softer material should be used in a softer wheel

2015年12月8日星期二

How to balance the wheel


Its work process: when the wheel rotates, the generator rotor coil rotates coaxially, since fixed stator field coil cutting wheel magnetic field lines produce alternating current through the rectifier, filter, voltage into a DC power is supplied to the control circuit inside the balance head and stepper motors. At this time, the balance of the head of internal microcontroller system reset, begins to detect the presence or absence of infrared control signals. When the host sends a control signal, via an infrared remote control so that the slave is received from the serial port to the control signal, the control signal from the operation of two stepper motors running control program output control, drive screw rotation causes and weights together nut movement, enabling automatic compensation for cutting wheel unbalance.

2015年12月4日星期五

Brief Wheel

Wheel hardness is not abrasive wheel hardness, but a combination of abrasive hardness between. Divided into soft, soft, hard, hard few. Each is divided into several levels. Hard not falling abrasive grinding wheel, grinding swarf under easy to stick on the wheel, causing the surface burns; soft abrasive grinding wheels easy to fall off, do not burn the workpiece, but the wheel consumed faster.
In addition to the hardness of the wheel, the organizational structure was divided tight, in a total of 12 loose, tight structure difficult to heat.
According to what you said, you can then check the wheel speed is not low? Rotational speed of the workpiece is not high?
Wheel hardness of its particle size should be! As can be seen the rough grinding wheel the coarser particle size, appearance can be seen! Numerical models of wheel greater the finer for finishing or polishing off, the softer brittle! Easily damaged.

2015年12月1日星期二

What is Wheel

grinding wheels is the most important one class abrasive. grinding wheel is to add a binder in the abrasive, the porous body through compacts made of dried and calcined because of different abrasives, binding agents and the manufacturing process, the characteristics of the wheel vary widely, so the grinding process quality, productivity and economy have an important impact. characteristic wheel is mainly determined by the abrasive particle size, binder, hardness, organize, shape and size and other factors

2015年11月27日星期五

Tile cutter, drill what material



Generally use carbide drill. The so-called cemented carbide is tungsten carbide powder as matrix, cobalt powder as a binder by pressing, sintering. Usually containing 94% tungsten carbide, cobalt 6%. Due to its high hardness, very wearable, there is a certain strength, suitable for high-speed cutting . But the toughness is poor, very brittle, hard alloy in order to improve performance, some use in the carbonized substrate by chemical vapor deposition of a 5 to 7 microns super hard titanium carbide (TIC) or titanium nitride (TIN), it having a higher hardness.
Some of ion implantation technology, titanium, nitrogen, and carbon into a certain depth of its base, not only to improve the hardness and strength but also in the drill bit resharpening these ingredients can move into injection. There's method to generate physical layer of diamond film on top of the drill bit, which greatly improves the hardness and wear resistance of the drill. Hardness and strength of cemented carbide, and tungsten carbide and cobalt only ratio, but also with particles about. Carbide drill ultra-fine particles having an average grain size of the tungsten carbide phase in less than 1 micron. This drill, not only high hardness and compressive and flexural strength are improved. In order to save costs many drill shank welded structure, originally as a whole are carbide drill, the rear uses a stainless steel shank, costs declined significantly due to the use of different materials, but its dynamic concentricity of less than solid carbide drills , particularly in terms of the small diameter.

2015年11月24日星期二

Concrete cutting discs use

concrete cutting discs use
A, for cutting more than 24 hours of pouring concrete and renovation of the old road, cut fast, abrasive resistant, long life.
B, with pre-alloy powder as matrix, to reduce shedding diamond invalid, with the most significant effect play its purposes. It can be cut 1500 ~ 3000m.
C, add water cut for road cutting machine.
D, the use of laser welding technology, combined with a solid head, easy off teeth.
F, cutting wheels concrete and brick wall
G, U-type saw tooth improve chip performance, increase cutting speed
H, reinforced concrete cutting ability
I, shorter cutting time, lower construction costs
G, the blade may be provided having a diameter of 600 ~ 1200mm
K, other specifications according to customer requirements

2015年11月19日星期四

Exterior concrete cutting sheet classification

Exterior concrete cutting sheet classification

1, a continuous blade edge: serrated diamond wheels continuous, usually by sintering method for making commonly used as a basis for the carcass bronze binder material, cutting water to be added to ensure the cutting effect, and will be useful for laser head cutting species gap.
2, blade-type blade: serrated disconnected, cutting speed, suitable for dry and wet cutting method.
3, the turbine type blade: 1,2 combines the advantages of both of the front, sawtooth-shaped uniformly continuous presence turbo punch, improved cutting speed, increase the service life.
Different material selection of different types of diamond saw blades, different powder formulations for different material properties, the quality of material goods, effects, costs and benefits as well as the passing rate direct impact.
Factors affecting the efficiency and lifetime of diamond saw blades have a particle size, concentration, binder hardness diamond sawing process parameters and the like. According to the cutting blade can have several wire-speed, cutting wheel feed rate and concentration.

2015年11月18日星期三

There are several types of commonly used Wheel

grinding wheels is the main tool, which is a porous body made of abrasive and a binder composition. Wherein the abrasive, binder and pore is composed of three basic elements of the wheel. With different abrasives, binding agents and manufacturing processes such as grinding wheel, grinding wheel characteristics may vary greatly, for precision grinding, roughness and productivity have a significant impact. Therefore, we must choose the appropriate wheel based on specific conditions.


2015年11月17日星期二

Concrete cutting

concrete cutting discs, a diamond cutting discs. The diamond saw blade is mainly composed of two parts; The base body and the head is the main support base of the tip portion of the adhesive, and the tip is played in the course of the cutting portion, the tip will be in use and continue to consume off, while the matrix is not, has been able to play a bit role in cutting because it contains diamond, diamond as the most hard substance, it friction cutting heads work object. the diamond particles by metal wrapped in inside tip. During use, the metal matrix and diamond along with consumption, are generally more ideal situation is a metal carcass consumed faster than the diamond, so can guarantee the sharpness of the tip of the tip while ensuring a longer life. The middle part is a substrate typically Mn steel outer ring portion is head.

2015年11月11日星期三

Concrete cutting applications

concrete cutting discs with the accelerated pace of urbanization, rapid urban construction. Big cities, the ground has been unable to meet the transport needs of urban traffic extending up to the elevated light rail, extending down to the subway. Some overhead now appears to have become a constraining factor in urban development. These elevated carry out alterations, it is inevitable to dismantle part of the affected part while also ensuring and reuse, which has become a problem in front of us. When conventional demolition construction can not do anything, the advanced concrete cutting wheels has a safe, efficient, environmentally friendly features.
Reinforced concrete cutting technology mainly disc-cut and diamond wire cutting method. Diamond wire cutting method has a faster speed, greater flexibility and lower construction noise. In particular, more and more applications in building renovation projects. Disc cutting method to break the traditional construction methods picks chiseled after gas cutting or directional blasting, the use of cutting discs with diamond particles cut, construction cut neatly, straight, does not require subsequent processing, from construction sites, environmental protection , duration, and other conditions for safety reasons, are widely used in various large-scale structural transformation of buildings and cutting construction. Steel wire cutting method combination of high-power hydraulic equipment, transmission positioning pulleys and steel wire with a diamond saw blade is made by a hydraulic motor driven drive pulley steel wire is cut around the high-speed rotation of the object to be cut, with the construction work speed, noise Low, no vibration, no dust, air pollution, etc., and cut straight and smooth, without doing aftermath processing. With this technology, for some special requirements for construction projects, such as tight deadlines, environmental protection requirements, as well as some large concrete structure demolition, cutting the project, these problems can be solved.



2015年11月9日星期一

concrete cutting blades

concrete cutting blades belonging wheel, abrasive and binder resin made ​​for ordinary steel, stainless steel sheet metal and nonmetal materials. concrete cutting bladesmade ​​of glass fiber reinforced resin bonding material, with high tensile, impact and flexural strength, widely used in ordinary steel, stainless steel and non-metallic materials production, the excellent material, exquisite craftsmanship guarantee for high Cut off wheels cutting blades efficiency of different material of the workpiece and the best economic results. Resin cutting discs are resin binder, combined with a variety of materials, for alloy steel, stainless steel and other difficult to cut materials, cutting performance is particularly significant. Cut pieces of material and hardness of choice, can greatly increase your concrete cutting blades efficiency, saving you the cost of production. Diamond cutting disc is a cutting wheels tool that is widely used in the processing of stone, concrete, precast panels, new and old road, ceramics and other brittle materials, diamond cutting discs mainly consists of two parts;. Substrate and the substrate is bonded knife blade the main part of the head support.

2015年10月27日星期二

LEMAN concrete cutting wheels Development Status

To solve these problems, scientists and technicians have been studied from various aspects, including the performance of low-temperature ceramic vitrified diamond grinding cement mass memory and the key factors affecting the development. Therefore, the study of high-strength, low-temperature, low thermal expansion depressed center cutting wheel coefficient and excellent performance of low-temperature ceramic adhesive is home to pottery wheel materials research. 
Tanaka T, EsakiS, Nishida K, etc. by selectively increasing the number of holes in the wheel and size, you can make self-sharpening wheel materials set times can be further improved. Jackson MJ, Barlow N, Mills B super hard materials by controlling the pore structure inside the pottery wheel, so that the production of grinding wheels with high bond strength, good grinding efficiency and cooling performance when grinding. 
Vitrified started on Toughening studies, such as binding agents for glass ceramics processing phase, adding an appropriate amount of suitable binders whiskers. They found that the addition of boric acid binding agent in silicon whiskers, one can suppress the generation of prevent at 100 ° C ~ 200 ° C when leaving the wheel due to the rapid expansion of the volume of cracks; hand whisker whisker itself can serve to enhance the effect to improve the tensile strength of the binding agent. 
Because when vitrified diamond abrasive combination of factors such as difficulty coefficient is relatively large, vitrified bond diamond wheels development and production has been hampered. I overcome the technical challenges of vitrified diamond, first in the domestic production of vitrified diamond grinding wheel with gems, and develop a variety of wheel size, has been favored gem processing field. In recent years, research and development of grinding PCD / PCBN cutting tools vitrified diamond grinding wheel, grinding PDC vitrified diamond grinding wheel series cutting disc for inox vitrified diamond grinding wheel in the market has a good reputation.

2015年10月22日星期四

Grinding wheel is the most important one class abrasive

Grinding wheel is the most important one class abrasive. Abrasive wheel is a binding agent was added to the porous body by the pressure of the blank, made cut off wheels of dried and calcined. Abrasive wheel is one of the most widely largest amount, use face, high-speed rotation, can cylindrical, inner circle, plane and a variety of surfaces such as metal or nonmetal type workpieces when using coarse grinding, fine grinding and half grinding and grooving and cutting and so on. The wheel is a binding agent to form a certain shape ordinary abrasive solids (mostly circular, the central through-hole), and has a certain strength abrasive. Which generally consists of abrasives, binders and pores form, these three parts is often called abrasive three elements. Grinding wheel is the most important one class abrasive. Abrasive wheel is a binding agent was added to the porous body by the pressure of the blank, made of dried and calcined. Since abrasives, binding agents and different manufacturing processes, a large difference in the characteristics of the wheel, so the quality of the grinding process, productivity and economy has an important effect. The main characteristics of the grinding wheels is determined by the abrasive particle size, binder, hardness, structure, shape and size and other factors. Central wheels in combination with the abrasive agent and abrasive made ??of a circular through-hole.

2015年10月17日星期六

LEMAN concrete cutting wheels Binders

Binding agent plays the role of holding the abrasive and concrete cutting blades grinding a given geometry. It is an important sign of abrasive performance. Binders made ​​from thermoplastic resin binder composition with a variety of fillers, (the widely used phenolic resin, polyimide resin, a small amount of application; apply some filler metal oxides), the nature of its various components usage how many have a great influence on the physical properties, mechanical properties and grinding performance binders, therefore, must be selected for the workpiece material properties, flat cutting disc in order to achieve good results.

2015年10月12日星期一

concrete cutting discs on the scale of the knife

Use and maintenance knife when in use, first crop of about location, Cut off wheel move left and right to adjust the crop size on the scale of the knife, then forced down the handle of the knife for cutting through the uniform. Generally can crop 4 to 5 80g paper. After the knife used for some time, you need to clean the cutting blades edge, remove the remnants of paper confetti. If the crop such as paper stickers and the like, but also at the cutting edge of the blade several times to clean, avoid adhesions confetti material impact on the effect of cutting again. 
The side cutter shaft can metal cutting wheels adjust the tightness, easy cutting items when using different materials.

2015年10月7日星期三

Diamond cutting discs mainly consists of two parts

concrete cutting blades belonging wheel, abrasive and binder resin made ??for ordinary steel, stainless steel sheet metal and nonmetal materials. concrete cutting concrete cutting blades made of glass fiber reinforced resin bonding material, with high tensile, impact and flexural strength, widely used in ordinary steel, stainless steel and non-metallic materials production, the excellent material, exquisite craftsmanship guarantee for high Cut off wheels cutting blades efficiency of different material of the workpiece and the best economic results. Resin cutting discs are resin binder, combined with a variety of materials, for alloy steel, stainless steel and other difficult to cut materials, cutting performance is particularly significant. Cut pieces of material and hardness of choice, can greatly increase your concrete cutting blades efficiency, saving you the cost of production. Diamond cutting disc is a cutting wheels tool that is widely used in the processing of stone, concrete, precast panels, new and old road, ceramics and other brittle materials, diamond cutting discs mainly consists of two parts;. Substrate and the substrate is bonded knife blade the main part of the head support.

2015年10月2日星期五

Abrasive wheel is one of the most widely largest amount

Abrasive wheel is one of the most widely largest amount, use face, high-speed rotation, can cylindrical, inner circle, plane and a variety of surfaces flap discs such as metal or nonmetal type workpieces when using coarse grinding, fine grinding and half grinding and grooving and cutting and so on.
Flat cutting disc, flap discs, metal flap discs
Disc, also known as grinding, rotary friction element is working. Super LSI semiconductor industry with major wafer production technology and equipment.......
flap discs are used in the semiconductor industry super reinforced concrete cutting discs LSI wafer production of major process equipment. Typically cast iron or steel lapping plate using its life, low thermal expansion coefficient.

2015年9月27日星期日

LEMAN concrete cutting wheels Diamond cutting discs

Diamond cutting discs are used for ordinary steel sheet, stainless steel and non-metallic materials with abrasive and binder resins made.
Diamond cutting discs concrete cutting blades with high tensile, impact and flexural strength, widely used in ordinary steel, stainless steel, metal and nonmetal production cutting, concrete cutting wheels, craftsmanship ensures high cutting efficiency for different workpiece materials and the most good economic results.
Flat cutting disc, also known as grinding, rotary friction element is working.
Flat cutting disc is in the semiconductor industry super LSI wafer production with important technology and equipment
Cast iron or carbon steel grinding plate Flat cutting disc normally used its service life, low thermal expansion coefficient. In the wafer processing process, particularly a fast concrete cutting disc grinding or polishing, and thermal deformation due to wear of the grinding disc, and the flatness of the wafer is difficult to ensure parallelism.

2015年9月22日星期二

LEMAN concrete cutting wheels flap discs

Made of glass fiber and resin bonding material reinforced with concrete cutting discs high tensile, impact and flexural strength, widely used in ordinary steel, stainless steel and non-metallic materials production, the excellent material, exquisite craftsmanship ensures that different materials high cutting efficiency of the workpiece and the best economic results.
Resin cutting discs are resin binder, combined with a variety of materials, for alloy steel, stainless steel and other difficult to cut materials, cutting performance is particularly significant. Dry ﹑ wet two cutting mode, the cutting accuracy is more stable, while the cut piece of material and hardness of choice, stainless steel cutting disc can greatly increase your cutting efficiency, saving you the cost of production.

2015年9月17日星期四

Reinforced concrete cutting wheels is currently divided into two categories

Refers to the variety of diamond and CBN model. reinforced concrete cutting wheels is currently divided into two categories according to the source: natural diamond and synthetic diamond. Also according to the different requirements and characteristics of the binding agent, or into a variety of different according to the shape of the abrasive treatment. Resin bond synthetic diamond abrasive is generally used, it was mostly flakiness, low intensity, brittle, rough surface, but the low price; CBN selection of medium intensity and surface flat cutting disc metallization clothing varieties.

2015年9月12日星期六

Concrete cutting wheels salient features

Concrete cutting wheels salient features:
1. The cutting edge is sharp: the diamond cutting tool can be worn very sharp cutting edges;
2. The low thermal expansion coefficient: the thermal expansion coefficient of diamond carbide several times smaller than the change caused by the heat of the tool cutting small size;
3. good thermal conductivity: diamond thermal conductivity and thermal diffusion rate, cutting heat easily shed, saw cutting portion temperature is low;
The extreme hardness and wear resistance: Diamond blade is the hardest substance found in nature at present, diamond road sheet with high hardness and wear resistance.

2015年9月6日星期日

Reinforced concrete cutting disc characteristics

Reinforced concrete cutting disc characteristics: high-frequency laser welding diamond discs, solder imported and imported fully automated high-frequency welding machine welded saw blade to further improve the safety performance; unique formulation technology, designed for cutting granite, marble, sandstone, Reinforced concrete and asphalt materials and design, cutting, high efficiency, good kerf quality, long life; with high cost performance specifications: φ105-φ800mm.. Suitable for cutting high-strength concrete, such as reinforced concrete, cobblestone concrete. Sharp, lasting wear, high efficiency, safety and reliability. For cutting concrete, reinforced concrete, new concrete, asphalt, refractories.

2015年8月30日星期日

Cutting disc is widely used in stone cutting

cutting tool for cutting disc is widely used in stone cutting, concrete cutting, panels cutting, old and new road cutting, machining marking, slotted piece of road cutting hard and brittle materials mainly composed of two parts; The base body and the knife Head The base is the main support of the tip portion of the adhesive, but head is in use from the cut portion of the tip will be in use constantly consumed, while the matrix is ​​not, it has been able to head from the cutting action because it contains diamond, diamond as the most hard substance that friction in the tip of the cutting work object. The diamond particles in the head by a metal wrapped inside.

2015年8月23日星期日

steel cutting machine and equipment

Concrete cutting machine adopts the world's most advanced non-destructive static cutting and diamond wire sawing technology and multiple diamond discs cutters, diamond wire saw cutting steel cutting machine and equipment, concrete cutting discs, construction cut straight , neat, no aftermath processing, especially for dead and location difficult construction has advanced technology construction, low operating noise, no vibration, no dust air pollution, in line with environmental requirements, with traditional construction unmatched superior. It may be different specifications bridges, piers, buildings, rails, roads, chimneys, masonry wall, construction beams, slabs and other building components to implement destructive cutting demolition.

2015年8月17日星期一

Concrete cutting discs are widely used

Concrete cutting discs are widely used in municipal construction, road reconstruction, airport runway construction, concrete pavement and other construction site, especially for asphalt and concrete pavement cutting kerf and other professional jobs.
Concrete cutting sheet prominent features: resistance to abrasive, long life, small teeth out, highly sharp, high cost, can be cut hard long concrete cutting blade life, (sharp and durable), high stability, high cost, the use of high efficiency (can reach 2-3 times the efficiency of the domestic like product) and so on.

2015年8月11日星期二

Features concrete cutting disc

Features concrete cutting disc
1, cutting disc cut fast, abrasive resistant, long life.
2, the use of pre-alloy powder as matrix, to reduce shedding diamond ineffective to exert its effect most significant purpose. It can be cut 1500 ~ 3000m.
3, the use of laser welding technology, combined with a solid head, easy off teeth.
4, for cutting concrete and brick walls.
5, reinforced concrete cutting discs ability.
6, shorter cutting time, lower construction costs.
7, the diameter of the saw blade may be provided 600 ~ 1200mm.

2015年8月5日星期三

Cutter daily care and maintenance

Every weekday cutting discs must be cleaned and dirt rail, to make the bed clean, if a long time will have to leave the cutter off the power to prevent no professional operating. Observe the machine horizontal, vertical guide surface with or without oil, so that it remains well lubricated. CNC foam cutting tools weekly Maintenance: machine a week to conduct a comprehensive clean-up, horizontal, vertical rail cleaning, add oil. Check the horizontal and vertical rub rail is working properly, if not properly replaced.

2015年7月30日星期四

concrete cutting blades with the accelerated pace of urbanization, rapid urban construction. Big cities, the ground has been unable to meet the transport needs of urban traffic extending up to the elevated light rail, extending down to the subway. Some elevated for now the city has become a constraining factor in the development. These elevated carry out alterations inevitable to dismantle part of the affected part while also ensuring and reuse, which has become a problem in front of us. When conventional demolition construction can not do anything, advanced construction cutting disc has a safe, efficient, environmentally friendly features.

2015年7月25日星期六

Concrete cutting support beam construction process

Construction cutting support beam construction process is divided according to the size of the lifting capacity of the concrete and a good standard line - lifting drilled holes - rows of holes cut in the hoisting rope fixing holes, cranes and other machinery ready. Accurate calculation grasp crane landing and lifting weight, must be able to load-bearing steel. Cut a piece of hanging according to a method of gradually dismantling, demolition when the beam with a row of holes cut to ensure a solid security support for the construction of adequate and sophisticated machinery to ensure the timely completion of the safety of construction concrete cutting blade.

2015年7月20日星期一

Use cutting blades

Cutting discs, made of glass fiber and resin as enhanced binding material with high tensile strength, impact resistance and flexural strength, it is widely used in ordinary steel, stainless steel cutting disc and non-metallic material under production, excellent material, exquisite craftsmanship guarantee workpieces of different materials for high cutting efficiency and the best economic results. Cutting sheet cut sheet classification according to the material is divided into fiber resin cutting discs and diamond cutting discs. Resin-cutting is a resin binder, combined with a variety of materials, alloy steel, stainless steel and other difficult to cut materials, cutting performance is particularly significant. Diamond cutting disc is a cutting tool, widely used in processing stone, concrete, prefabricated, old and new roads, ceramics and other brittle materials.

2015年7月15日星期三

Concrete cutting is a diamond cutting tools

Concrete cutting, a diamond cutting tools. The diamond blade consists of two parts; The base body and the head is the main support base of the tip portion of the adhesive, and the tip is played in the course of the cutting portion, the tip will be in use and continue to consume off, while the matrix is not, has been able to play a bit role in cutting because it contains diamond, diamond as the most hard substance that friction in the tip of the cutting work object. the diamond particles by metal wrapped in inside tip. During use, the metal matrix and diamond consumption together, the ideal situation is generally more metal carcass consumed faster than the diamond, so can guarantee the sharpness of the blade tip can ensure a long life.

2015年7月10日星期五

Concrete Cutting sheet widely used

Concrete cutting blade: Widely used in municipal construction, road reconstruction, airport runway construction, concrete pavement and other construction site, especially for asphalt and concrete pavement cutting kerf and other professional jobs. Construction cutting discs Advantages: grinding resistance, long life, small teeth out, highly sharp, high cost, can be cut hard long concrete blade life, (sharp and durable), high stability, high cost, the use of high efficiency (up to domestic 2-3 times the efficiency of similar products) and so on.

2015年7月5日星期日

Concrete cutting discs use

Construction cutting discs use
A, cutting disc for cutting more than 24 hours of pouring concrete and renovation of the old road, cut fast, abrasive resistant, long life.
B, in a pre-alloy powder as matrix, to reduce shedding diamond ineffective to exert its effect most significant purpose. It can be cut 1500 ~ 3000m.
C, add water cut for road cutting machine.
D, the use of laser welding technology, combined with a solid head, easy off teeth.
F, for cutting concrete and brick walls.
G, U-type saw tooth improve chip performance, increase the cutting speed.
H, reinforced concrete cutting ability.
I, shorter cutting time, lower construction costs.
G, available blade diameter 600 ~ 1200mm.
K, other specifications can be customized students.

2015年6月30日星期二

The abrasive grinding machine is characterized by:

Due to intense friction, leaving a high grinding zone temperature. This can cause stress and deformation of the workpiece, and even cause surface burns. It is necessary to inject a lot of grinding coolant to reduce the grinding temperature. Coolant also played Chip and lubrication.
Grinding large radial force. This causes the machine - Flexible concessions workpiece system, so that the actual depth of cut is less than nominal depth of cut - wheel. Therefore grinding will be complete, we should not feed light grinding to eliminate errors.
Abrasive blunt, the grinding force also increased, resulting in grains or broken off, again exposing the sharp edge, this feature is called "self-sharpening." Self-sharpening, the grinding can be normal within a certain time conduct, but work more than a certain time, give artificial trimmed, so the grinding force increases caused by vibration, noise and damage the workpiece surface quality.
Since the metal cutting wheels itself has high hardness and heat resistance, and therefore the grinding can be processed high hardness materials such as hardened steel, carbide.

2015年6月27日星期六

A wide range of wheel:

Press the abrasive can be divided into ordinary abrasive (corundum and silicon carbide, etc.) and natural abrasive grinding wheels and superabrasive (diamond and cubic boron nitride) grinding wheel;
According to the shape can be divided into flat-shaped grinding wheel, bevel wheel, cylindrical grinding wheel, tile granite cutting wheels, disc wheel and so on; by binding agent can be divided into pottery wheel, resin wheel, rubber wheel, metal grinding wheel. The main parameters metal cut off wheels, viscosity, hardness, binding agents, shape, size and the like.
Since the wheel typically operate at high speed, before turning test should be carried out so that the use of (guaranteed at the maximum operating speed of the wheel, do not break) and static balance test (when working to prevent vibrations caused by the machine). Grindstone at work for some time, it should be trimmed in order to restore the grinding performance and correct geometry.

2015年6月23日星期二

Wheel of life

In the grinding process, with the wheel itself wear, wheel face state is changing. The longer the time, the lower the cutting ability of the grinding wheel, a variety of grinding defects will continue to emerge, the grinding not up to standard. Then it must trim grinding wheels to reach normal state. We usually refer to is the actual grinding wheel life time in two trim wheel between. Wheel length of life directly affects the grinding effects, especially more important for profile grinding.

2015年6月19日星期五

Install the wheel on the grinder should?

Wheel is working at high speed, then fly or easily spill caused no casualties. So be especially careful before using checks, does not allow cracks. The installation must be reliable, and to go through static balance adjustment, so it will not cause injury.
Between the wheel and the wheel shaft or bore cylindrical flange, not too tight, otherwise the grinding thermal expansion, easy to wheel bursting, not too loose, otherwise prone to eccentric wheel, loss of balance, so as to cause vibration. Usually with the gap of 0.1 ~ 0.8mm, high speed grinding wheel gap to be smaller. When the wheel clamping flange with two flange diameter should be equal to the outer diameter shall be not less than 1/3 of the wheel diameter. Application of the end surface between the flange and the wheel cardboard or oil and rubber, and so do the pad, the pressure evenly distributed, the tightening force of the nut can not be too large, otherwise the wheel will break. Note the tightening screw rotation, and the wheel should spin in the opposite, that is, when the wheel is rotated counterclockwise, with right-hand thread, so that the diamond reinforced concrete in force, will drive the screw nut more tightly.

2015年6月15日星期一

The introduction and use of the characteristics of the wheel

Wheel is binding agent with many small flange or corners mineral crystal particles cemented together to form. Wheel hardness than particles is grinding and cutting tools, but also the need to have sufficient strength and flexibility, we can resist the impact force generated by the grinding process. These particles are obtained after crushing abrasive.
The abrasive is made from natural and man-made abrasive abrasive material commonly used natural abrasive corundum, emery. Artificial Abrasive ordinary alumina, white alumina, black silicon carbide, green silicon carbide. The size of the abrasive particles called concrete cutting wheels size.
Grindstone at work due to the surface of the particles and the friction between the cutting tool, it will gradually wear blunt, when the grinding resistance beyond the adhesion between particles and a binder, the particles began to fall off, and was replaced by new sharp particles. So the wheel has a self-sharpening performance. But adhesion binding agent should not be too strong, too strong as particles after blunting also attached to the wheel surface grinding wheel will lose effect. Further, since the granite cutting disc and the workpiece is friction will have a lot of heat, the binding agent can easily be softened. By grinding the metal material at the end of the adhesive binder filled with sand in the cracks between the wheel stopper reality. If this plug solid wheel continues to work, not only relatively low efficiency, are causing annealing grinding and cutting tools also become blue. On the other hand if the binding agent is not firmly bonded particles in the particle has not been changed between the pure grinding but also will make it fall off, so wear faster transmission lines sand, easily deformed, require regular trimming.

2015年6月11日星期四

What is self-grind of the wheel

Since grind of the wheel are also known as "self-sharpening."
Grinding wheel action depends mainly on grains exposed sharp edges, during grinding, sharp edges will gradually be worn and blunted, weakened capacity stainless steel cutting wheels.
Then peel off the surface of the grains or broken, thereby forming a new blade grinding, grinding in order to achieve the effect of a sharp, which is self-sharpening.
Sparks generated during grinding is grinding down a portion of another part of the metal debris is broken off or sand.
If the spark is short, it is bound to self-sharpening poor, a reduced ability to grinding, small metal shavings mill under a sand can not afford to, so little spark and short.

2015年6月7日星期日

Pottery wheel performance

Ceramic grinding wheel is a cutting tool, which consists of many small and hard, abrasive and adhesive binders from the porous body. Abrasive cutting directly responsible for the work, sharp and must have a high hardness, heat resistance and a certain toughness. Commonly used abrasive alumina (also known as corundum) and silicon carbide two kinds. Alumina-based abrasive, high hardness, good toughness, suitable for grinding steel material. Type silicon carbide abrasive hardness higher, sharper, good thermal conductivity, but more brittle, suitable for grinding cast iron and tungsten carbide.
For the same abrasive grinding wheel, because of its different thickness, surface roughness and processing efficiency is not the same after the workpiece, coarse grains for rough grinding, fine abrasive grains, the more rough abrasive grain size number smaller.
Binding agents from bonded abrasive effect. Commonly used ceramic binders, followed by the resin binder. Different binders choice of materials, the impact wheel corrosion resistance, strength, heat resistance and toughness.
The more firmly bonded abrasive particles, the more difficult to fall from the wheel, the hardness of the wheel is said that the hardness of the wheel is the degree of difficulty of the stainless steel cutting wheel surface under loads off. Easy to fall off called soft, otherwise known as hard. The abrasive grinding wheel hardness and hardness are two different concepts. Surface grinding of the workpiece is relatively soft, abrasive cutting edge (corner) on easy to wear, this time may be longer use abrasive, that some of the firm bonding optional wheels (high hardness of the wheel). Conversely, a low hardness grinding wheel for high hardness workpiece.
Ceramic wheel at high speed work, in order to ensure safety, should be checked before installation, there should be no cracks and other defects; in order to make the wheel steady, balancing test should be carried out before use.
concrete cutting blade after working a certain time, the surface voids are clogged debris, abrasive acute angle blunt, the original geometry will be distorted. It must be trimmed in order to restore the cutting ability and the correct geometry. Required diamond grinding wheel dressing pen.

2015年6月3日星期三

How to Install Ceramic wheel

Due to the high speed of pottery wheel, grinding wheel and more brittle, damaged and may occasionally result in serious consequences, therefore, whether the wheel is installed properly reasonable, safe and reliable, it is very important. Wheel of installation must be carried out carefully to ensure production safety grinding.
Ceramic wheel installation should pay attention to the following safety technology issues.
① aperture wheel should be freely attached to the concrete cutting wheels spindle or wheel chucks, and remain in compliance with the clearance aperture crude refining on the technical requirements.
Wheel pore size is too large, allowing the use of the liner shrinkage. Bush width smaller than the width of the wheel, but not less than 1/2 the thickness. Wheel chuck diameter of not less than 1/3 the diameter of the wheel, the wheel in order to ensure there is enough power and torque.
Wheel chuck have sufficient rigidity, after pressing the sides to maintain contact with the wheel flat and uniform, must be pressed between the pad surface with a flexible gasket (asbestos rubber sheet) and a thickness of 1 ~ 2mm, a diameter greater than card disc diameter 2mm appropriate. To ensure that the contact surface between energy compaction, compaction, should be kept clean and free of attachments.
When ② installation woodworking saw blade, should pay attention to controlling the compression nut or screw tightness, it is necessary to ensure when the grinding wheel does not slip, but also to prevent excessive pressure, resulting in wheel damage, therefore, it is best to use a torque wrench. If multiple time compression screw shall diagonal order, gradually tightening; wheel and chuck the total weight exceeds 16kg, it should be mounted on a grinder lifting methods and collision avoidance; install the new wheel to check to make sure safe only after the test, all the normal sounds and operation, etc., that can be put into production.

2015年5月30日星期六

Ceramic wheel Caution:

1. Before pottery wheel installation should check to see whether there are cracks, and hit the wheel with a wooden hammer, whether there were unusual to hear hoarse voice, if there is, the wheel can not be used to avoid wheel breakage caused wounding consequences.
2. The newly installed or every other day using the wheel, you should re-use idle more than a minute, if all goes well, you can use the diamond grinding cup machine in accordance with the relevant safety procedures.
3. Since the ceramic wheel brittle and fragile, please do not let by the impact, collision, not fall. When stored frost, moisture, keeping cool indoor ventilation, place the flat, stacked neatly against dust, remains unused wheel clean, not stress.
4. Ceramic wheel installation, you must look for positive wheel center, and should the tightening flange mounted on the flange should be examined later whether the spindle concentric cylindrical stone cutting wheel, grinding wheel having at least one side of the vertical centerline of the spindle.
5. After the installation of ceramic grinding wheels, for safety reasons, do not properly qualified protective enclosure will be installed, and then start the machine use.

2015年5月26日星期二

How to choose the wheel?

Abrasive wheel is a grinding tool indispensable, select the appropriate wheel or not, affect the quality of grinding, the grinding cost important condition. The company produces a range of surface grinders, the wheel must be configured to accommodate different plane processing various workpiece. For the convenience of the user and the company design, technology choices, which this paper plane grinding, grinding wheel used different workpiece material selection summary for everyone to use reference.
Many different types of stainless steel cutting wheel, and a variety of shapes and sizes, due to the different abrasive grinding wheel, grinding wheels binder material and manufacturing process, the wheel would have a variety of different performance. Each tile cutting wheel in accordance with its own characteristics, there is a certain scope. Therefore, grinding, must be based on the specific circumstances (such as the material properties of the workpiece grinding, heat treatment method, the workpiece shape, size and processing forms and technical requirements, etc.), choose the appropriate wheel. Otherwise it will directly affect the inappropriate choice of wheel machining accuracy, surface roughness and productivity.

2015年5月21日星期四

Cut off wheels

LEMAN concrete cutting wheels is usually cut with water (wet cutting), for concrete cutting wheels with adequate water can significantly reduce the dust, keep construction cutting blades cool and extend its life, and improve the cutting efficiency (for wet cutting can be deep and continuous).
However, when there is no water source near the work area, you have to perform dry cutting. As said in the previous section, dry stainless steel cutting wheel should be intermittent and shallow. If deep cutting depth is needed, you should do several passes of shallow cuttings.

2015年5月17日星期日

Concrete cutting disc

Often the decision of stainless steel cutting wheels wet or dry depends on your preference and job requirements. Dry cutting eliminates messy wet slurry and the need to equip saws with water tanks and hoses. Using a blade wet, on the other hand, reduces dust but makes it necessary to contain or clean up the slurry. For indoor jobs where you need to keep the work area dry, a dry-cutting blade and compatible saw may be your only option.
The main difference between wet and Tile cutting discs is the weld (as described in Step 1). Dry-cutting blades have segment welds that resist heat and don't require water for cooling. They are usually intended for intermittent cutting and for use on handheld, low-horsepower saws. If you're sawing decorative pattern lines in concrete, dry-cutting blades are often the best choice for making crisp, clean cuts (see Sawing and Patterning). These decorative cuts are typically only 1/16 to 1/4 inch deep and do not function as control joints.
Wet-cutting blades are typically used with walk-behind saws for cutting joints in cured concrete flatwork because water cooling permits deeper cuts. Although it's possible to use most abrasive factory with water, never use a wet-cutting blade dry. Always continuously cool the blade with water to avoid segment loss and blade warpage.


2015年5月13日星期三

Construction cutting blades

For maximum cutting speed and blade life, you should match the blade as closely as possible to the material you're cutting. Characteristics of the concrete you need to know include the compressive strength, the size and hardness of the aggregate, and the type of sand.
Blade manufacturers consider concrete with a compressive strength of 3000 psi or lower a soft material and Diamond cutting discs with a strength above 6000 psi a hard material. Therefore, you should use a blade with a hard bond to cut the lower-strength concrete and a blade with a soft bond to cut high-psi concrete. Similarly, hard aggregate (such as trap rock, basalt, and quartz) dulls diamond particles quickly, so use a blade with a softer bond to allow new diamonds to be exposed as needed.
The size of the aggregate in concrete primarily affects blade performance. When cutting through larger aggregate (3/4 inch and up), construction cutting discs and wears more slowly. Pea gravel (smaller than 3/8 inch) is easier to cut, but the blade will wear faster.
The type of sand determines the abrasiveness of concrete, with sharp sand being the most abrasive cutting wheel and round sand the least. To determine the sharpness of the sand, you need to know where it's from. Crushed or river bank sand is usually sharp while river sand is round and nonabrasive. The more abrasive the sand, the harder the bond requirement.
What if you will be cutting more than one type of concrete? As a general rule, manufacturers recommend choosing the blade based on the material you'll be working with most often or the material for which top blade performance is most important. Most diamond blades can cut a range of materials.

2015年5月9日星期六

Concrete cutting discs

Concrete can also be cut with abrasive blades, but diamond blades are recommended, for cutting blades can provide at least two times faster cutting, less downtime, and constant depth of cuts.
If you use the diamond blades occasionally and your jobs are small, you can choose the economical grade diamond construction to save your expense (but the cutting speed of the economical diamond blades should be fast enough). If you use the diamond blades frequently or the job is big, you should choose high grade professional diamond blades, for this can decrease your cost per cut.
If you are not sure that you can do concrete cutting wheels job well, you can just hire a professional concrete cutting company to do the job for you.


2015年5月5日星期二

Diamond discs

You should at least wear a professional respirator, not only in dry cutting, but also in wet cutting, because the small dust particles generated in metal cut off wheels process can penetrate deep into the lungs and can cause serious health effects such as lung cancer or silicosis. If the job is big, other equipment like goggle, earplugs, and protective clothing should also be adopted.
To make the cut straight, you can use a chalk line to mark a straight line on diamond blade, and then place a straight wood board along the line. Then you can cut a shallow line on the concrete along the wood board. The cut can be about 1/4″ deep.Having this shallow straight metal cutting discs, you can perform further cuttings along it to gain the cut you need.

2015年5月1日星期五

Til granite cutting wheels

What type of handheld saw or flat saw are you using? What is the horsepower and operating speed (or rpm)? Blade manufacturers provide charts with recommended operating speeds and maximum safe operating speeds for their blades. You'll also find this information stamped right on the multi use diamond disc.
Always match the blade with the speed range of the saw. Operating the blade at a lower speed than recommended can concrete cutting blades its cutting life and performance. Exceeding the blade's maximum rpm rating can damage the blade and risk injury to the saw operator.
Other factors to consider:
Blades designed for wet use only must be operated by saws that can deliver a continuous supply of water to cool the blade.Most blades for cutting green concrete are designed for use with special early-entry saws that minimize joint raveling and spalling.Don't use a blade that exceeds the maximum blade diameter and tile cutting wheels depth capacity of the saw.


2015年4月22日星期三

Concrete cutting wheels

New concrete cutting machine.
2 concrete cutting blades is the rack, flip, crosscutting, horizontal cutting vehicle, hydraulic system and electrical control system consists of six parts.
1, rack
Left longitudinal beams, beams, columns, composed of teeth, sharp tracks, the main effect is to make horizontal cuts on track for horizontal movement and crosscutting bodies in its orbit for vertical lifting movement.
2, crosscutting bodies
By cutting tools, driving and crossing equipment, wheel, swing system, cut wire, and other components.Transmission and cross device driven cross cutting the body vertically, cutting steel as well as bi-directional swing.
Level 3, cutting car
Consists of frame, blade-like device, cutting device, transmission device, wire hanging column, composed of Geneva group in plain view group.Horizontal cut on both sides of the car separately with two sets of cam and two sets of flat wheels, driven by gearing level cutting cars in rail walking back and forth on the peace track, horizontal cut and "bread head" cutting.
4, set by Flip Flip the master cylinder racks, carts, cars, and walking tank and other components, its role was flipped horizontally placed in the cart body rotated 90 degrees forward, and move to the cut location by horizontal and vertical cutting and six-sided cutting, is completed and then flipped backward to the starting position.
5, hydraulic system
Petrol stations, motors, pumps, valves, fittings, and other components.Is mainly aimed at enabling smooth accurate flip 90 degrees, cart,concrete cutting wheels trolley moving simultaneously to the appropriate location.
6, electrical control system.

2015年4月19日星期日

Concrete cutting discs

Concrete cutting process with the acceleration of urbanization, rapid urban construction.In the big city, the ground has been unable to meet the transport needs of urban traffic up to the elevated light rail, extending down to the subway.Some elevated now seems to have become the factors that restrict the development of cities. reinforced concrete cutting wheels Alterations to these elevated part, inevitably removed, also ensuring that the part is not affected and can be reused, that before us has become a problem.At the time that there was nothing traditional demolition, advanced reinforced concrete cutting by a safe, efficient and environmentally-friendly features.
concrete cutting blades and cutting technology of reinforced concrete diamond wire cutting method.Diamond wire cutting method is faster, more flexible and lower noise.Especially in the construction and renovation project in the growing number of applications.Disc cutting method cutting after breaking away from the traditional pneumatic chipping or blasting construction methods, adopted with a diamond cutting discs cutting, construction cutting neat, straight, does not require subsequent processing, not affected by construction sites, environmental protection, construction, security conditions, are widely used in all kinds of cutting structural transformation and the construction of large buildings.Steel wire-cutting equipment by location of high-power hydraulic machines, drive pulleys and steel line combined with a diamond saw, and hydraulic motor driven through the transmission pulley rotates around the object to be cut high speed steel wire cutting, high operation speed, low noise and no vibration, no dust pollution advantages,metal cutting wheels and cut straight and smooth, without doing the rehabilitation process.By using this technology, for some construction projects with special requirements, such as pressing time limit, high environmental requirements, as well as some large demolition of concrete structures, cutting engineering, these problems can be solved.