LEMAN cutting wheels with abrasive and binder resin made for ordinary steel, stainless steel cutting discs sheet metal and non-metallic materials. Cut off wheel according to the material is divided into fiber resin cutting discs and diamond cutting discs. 1. The resin-cutting is a resin binder, combined with a variety of materials, for metal cutting discs, stainless steel and other hard materials, cutting performance is particularly significant. 2. The diamond cutting disc is a cutting tool that is widely used in the processing of stone, concrete, prefabricated, old and new roads, ceramics and other brittle materials.

abrasive cutting wheel Abrasives in use

Abrasives in use, when the abrasive blunt, partially due to its fragmentation or abrasive bond breakage, abrasive grit from the partial or complete loss, but the continuous work cutting disc china‍ surface abrasives emergence of new cutting edge, or continuously exposing new sharp abrasive grains, so that the abrasive in the cutting performance can be maintained within a certain time. This self-sharpening abrasive, is abrasive tool compared with the general prominent feature. Abrasives except in machinery manufacturing and other metal processing industries are widely used, but also for the processing of food processing, paper industry and ceramics, glass, stone, plastic, rubber, wood and other non-metallic materials. Source of their raw kind of abrasive, abrasive natural and artificial abrasive categories. Commonly used in machinery tile cutting wheels‍ industry is only natural abrasive natural stone. Artificial abrasive characteristics according to the basic shape and structure of the points, there is grinding, grinding, stone, sand tile (above collectively bonded abrasives) and coated abrasives classes. In addition, it is customary also put abrasives abrasive as a class. Table 1 lists the types and uses of artificial abrasive. Abrasive used by abrasive divided into ordinary abrasive abrasive and superabrasive abrasive. The former general with corundum and silicon carbide and other abrasives, which are made of diamond and cubic boron nitride and other superhard abrasive. In addition, there metal cutting wheels‍ are some special varieties such as sintered corundum abrasives and so on.

LEMAN cutting wheels The ratio between the volume of tissue characterization abrasive abrasive abrasive

The ratio between the volume of tissue characterization abrasive abrasive abrasive, bond and porosity between the three, often occupied by abrasive abrasive entire volume percentages. metal cut off wheels‍ Coarse abrasive organization into tight, medium and loose three categories. Each category can be subdivided and number, (often expressed as 0 to 14) with the organization number to distinguish. The greater the number of abrasive tissue, the share of the abrasive in the abrasive volume percentage is smaller, the wider the gap between the abrasive particles, said more loose tissue. On the contrary, the smaller the organization number indicates more tightly organized. Loose abrasive organization is not easy when you use passive, less grinding process heat, can reduce heat deformation of the workpiece and burns. Tight organization of abrasive grit easy to fall off, helps maintain abrasive geometry. Abrasives organization to be only in the manufacture of abrasive formula by control, generally do not make the determination.

Because of superhard abrasive abrasive diamond, cubic boron nitride high price, with good abrasion resistance, they are manufactured using ordinary abrasive abrasive abrasive concrete cutting wheels‍ different, except for super abrasive layer, but also there are the buffer layer and the substrate. Super abrasive layer is a part of the cutting action, the super abrasive grains and bonding agent. Bracket base is played in grinding of metal, bakelite or ceramic materials. For connecting the substrate and the buffer layer of super-hard abrasive layer consisting of a binding agent and, sometimes, may be omitted. The binding agents are used resin, metal, plated metal, and ceramics. Such abrasive characteristics marked with ordinary abrasive abrasive much the same, but not marked and labeled abrasive tissue concentrations. Characterization of the abrasive concentration of the inner layer of super abrasive grains per unit volume of the content of the super abrasive grains, expressed as a percentage. 1 cm superabrasive volume containing 0.88 g (4.4 kt) who called 100% concentration, cutting disc china‍ containing 0.44 g (2.2 kt) are referred to 50% concentration, I analogy.

tile cutting wheels Manufacturing process abrasive manufacturing process are

Abrasives

Manufacturing process abrasive manufacturing process are: distribution of materials, mixing, forming, heat treatment, machining and inspection. With different binding agents, metal cut off wheels‍ manufacturing processes are not the same. ① mainly vitrified abrasive-pressure method, after the abrasive and binder in a weight ratio formula weighing, mixing placed inside the mixer, put into a metal mold in the press molding of abrasive blank (addition , there are a wet mixing method using a potting molding process). Dried and then into the blank firing kiln, the firing temperature is generally about 1300 ℃. Seizure when using low melting point binder, the firing temperature is lower than 1000 ℃. Then the provisions of size and shape precision machining, final inspection products. ② resin bonded abrasives are generally in the press molding at room temperature, there is also heating conditions in the lower side of pressurized heated hot pressing process. After forming the hardening furnace hardening. When the phenolic resin as binder, a curing temperature of 180 ~ 200 ℃. ③ rubber bonded abrasives mainly roller machine mixing and rolled into thin slices, then washed the knife punching molding; also some with loose material, into the inner metal mold press forming. After the vulcanization molding in the curing tank at a temperature Diamond cutting discs‍ of 165 ~ 180 ℃. ④ metal bonded abrasives manufacturing process, there are two powder metallurgy method and plating method, mainly for superabrasive abrasive. Bronze powder metallurgy as the binding agent used after mixing at room temperature or hot press molding, followed by sintering processing. Plating with nickel or nickel-cobalt alloy as the metal plating, according to the plating process in the consolidation abrasive substrate made ​​of abrasive.

Special varieties are sintered corundum abrasives and abrasive fibers and so on. Sintered corundum abrasive is alumina powder and mixing the right amount of chromium oxide, forming, sintering at 1800 ℃. This abrasive compact, have high strength, only its pore size is divided into two types of compact and porous type, for processing watches, instruments and other parts. Fiber containing abrasive or sticking with abrasive filaments (such as nylon) stone cutting wheels‍ as made ​​of raw materials, good elasticity, metal materials and products for polishing.

abrasive cutting wheel Abrasive cutting machines

Abrasive cutting machines, also known as wheel saw, grinding wheel cutting machine is suitable for construction, metal, petrochemical, metallurgical and mechanical depressed center cutting wheel‍ installation of water and other sectors. Abrasive cutting machine can be flat metal square tube, square flat steel, I-beam, channel steel, carbon steel yuan, yuan pipe and other materials commonly used cutting equipment. 

Grinding machines, which is mainly the base wheel, electric motor or other power source, the carrier, water and the like protective cover composed of the grinding wheel is disposed on the top surface of the base, the base for accommodating therein a power source space, power source drives a reducer, reducer shaft having a top surface for piercing the base fixedly connected wheel, the wheel base has a bottom position corresponding to a depression in the catchment area, catchment area extending outward wheel cutting machine first-class road, water wheel is located on the top side, with a space containing liquid water within the water control and water supply corresponds side wheel has an outlet. Has a very streamlined to improve overall transmission mechanism, so that the grinding process smoother and easier to improve MPA certificate cutting disc‍ the overall performance of the grinding wheel machine effect. 

Wheel more brittle, high speed, should be used in strict compliance with safety procedures.‍

LEMAN cutting wheels Abrasive Cutting - running

1, grinders must be smooth and reliable operation, the amount is not excessive wheel wear and use within the validity period; 

2, grinders shelf should have a certain metal cut off wheels‍ rigidity and stability (installed in the ground to prevent the tightening of vibration); 

3, grinding machine is running, there should be no noticeable runout; 

4, the rotational speed of the wheel is not more than the circumference of the wheel safe speed (sorry the table after it); 

5, grinding wheel wear and must be replaced to a certain extent; 

6, wheel diameter wear limit Size: 

7, wheel wear limit the size of the installation in the form of 

8, stick on a mandrel of diameter d d +2 

9, with a screw diameter of the screw mounting D0 D0 +2 

10, with a flange diameter D3 D3 +10 reinforced concrete cutting wheels‍ installation 

11, PE must first reliable connection, control electrical appliances comply with the relevant provisions of metal-cutting machine tools. (At least to switch sensitive, reliable :))‍

LEMAN cutting wheels Safety rules

The direction of rotation of a grinding machine to the right, so that debris can fly wheel down. 

After two grinding machine starts grinding the diamond reinforced conrete‍ grinding machine should rotate smoothly again. If the grinder beating obviously, should be promptly stopped trimming. 

Should be maintained between 3 wheel drive bracket and wheel 3mm distance to prevent the workpiece tie into the accident. 

4 should stand on the side of the grinding wheel machines, and force should not be too large. 

5 revolutions consistent wheel wheel according to the instructions for use, select the grinder spindle. 

6 new leader of the wheel have factory certification, testing or inspection mark. When installing the front wheel if found quality, hardness, size and appearance of cracks and other defects, can not be used. 

7 When installing wheel, wheel spindle bore with the gap should not be too tight, should be loose with the technical requirements, the general control 0.05? / FONT> between 0.10 mm. 

8 wheel flange fitted to both sides, with a diameter of not less than one-third the diameter of the wheel should be a good cushion pad between the grinding wheel and the cutting disc china‍ flange. 

9:00 tighten the nut, use special wrench, not overtighten prohibited hammer with a hard thing to prevent wheel hit by fragmentation. 

10 wheel installed, to install shields, baffles and brackets. The gap between the baffle and the bracket and the wheel should be maintained at 1? / FONT> 3 mm, and slightly lower than the center of the wheel. 

When newly installed wheel 11 starts, not too fast, before inching check after 5? / FONT> try after 10 minutes turn, can be used. 

Early 12 not overexert when grinding wheel in order to avoid uneven stress and accidents. 

13 prohibits grinding copper, lead, wood and other things, to prevent wheel impaction. 

When 14 Brothers, who should stand side grinders, allowed two people on a sharpening wheel. 

15 times longer tool sharpening, should be promptly cooled to prevent hot. 

16 often trimmed balance wheel surface, maintained in good condition. 

17 Brothers personnel should wear tile granite cutting wheel‍ protective glasses. 

18 Vacuum Cleaner must be intact and effective, if found fault should be repaired, should stop sharpening.‍