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.