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Abrasive description
Abrasive description
The abrasive tools are divided into three types of compact, medium and loose. Each class can be fine fraction, etc., with organization number to distinguish. The greater the size of the organization, the smaller the percentage of the abrasive in the abrasive, the wider the gap between the abrasive grains, the more loose the organization. On the other hand, the smaller the organization, the more compact the organization is. Compared with the loose structure of the abrasive tool used in the grinding process of less heat, can reduce the heat distortion of the workpiece and burn. More compact organization of abrasive wear not easy to fall off, is conducive to maintaining the geometry of the abrasive. The structure of the abrasive tool is controlled by the formula of the abrasive tool in the manufacture. Ultra hard abrasive abrasive abrasive is mainly made of diamond, cubic boron nitride and other abrasive with the binder. Because of the high price of diamond and cubic boron nitride, and have very good abrasion resistance, the abrasive abrasive and abrasive material are different from ordinary abrasive, and there is a transition layer and matrix. The super hard abrasive layer is a part of the cutting part, which is composed of a super hard abrasive and a binder. The matrix is supporting role in grinding, composed of metal, such as bakelite or ceramic materials. The transition layer is used to connect the matrix and the super hard abrasive layer, which is composed of a binder, and sometimes can be omitted. Commonly used binders resin, metal, electroplating metal and ceramics, etc.. The manufacturing process of the bonded abrasive tool includes: the ingredients, the mixture, the molding, the heat treatment, the processing and the inspection. With different binders, manufacturing processes are not the same. The main use of the ceramic bonded abrasive tool, the abrasive and binder according to the formula of the weight ratio of the mixture, placed in the mixing machine, into the metal mold, forming a grinding tool in the press. The blank is dried in a kiln and the firing temperature is about 1300 degrees centigrade. When the low melting point is used, the sintering temperature is lower than 1000. And then according to the provisions of the size of the exact shape of the final product. Resin bonding abrasive tool is generally formed in the press under the condition of room temperature, and it also has a hot pressing process which is used to heat the edge under the heating conditions. Hardening in the hardening furnace. When the phenolic resin was bonded, the hardening temperature was 180~200. The rubber bonded abrasive tool mainly adopts the mixing material of the roller machine, and rolls into the sheet, and then uses the cutting tool and cutting tool. After forming, the temperature is 165~180. The manufacturing process of metal bonded abrasive tool has two kinds of powder metallurgy method and electroplating method, which is mainly used in the abrasive abrasive abrasive. Powder metallurgy method is used as a binder, such as bronze, the material is used in hot pressing or under the condition of room temperature compression molding, and then sintering processing. Electroplating method to nickel or nickel cobalt alloy, such as electroplating metal, according to the plating process will be fixed on the substrate material, made of abrasive. Special varieties of abrasives are sintered corundum abrasives and fiber abrasives, etc.. Sintered corundum abrasives are made of alumina powder and appropriate amount of chromium oxide, forming, sintering at about 1800. This kind of abrasive structure is compact and has high strength, which is mainly used in the processing of watches and clocks, instruments and other components. Fiber abrasive tool is used to contain or adhere to the abrasive fiber silk (such as nylon) made of raw materials, it's good elasticity, mainly used for metal materials and its products.
The abrasive tools are divided into three types of compact, medium and loose. Each class can be fine fraction, etc., with organization number to distinguish. The greater the size of the organization, the smaller the percentage of the abrasive in the abrasive, the wider the gap between the abrasive grains, the more loose the organization. On the other hand, the smaller the organization, the more compact the organization is. Compared with the loose structure of the abrasive tool used in the grinding process of less heat, can reduce the heat distortion of the workpiece and burn. More compact organization of abrasive wear not easy to fall off, is conducive to maintaining the geometry of the abrasive. The structure of the abrasive tool is controlled by the formula of the abrasive tool in the manufacture. Ultra hard abrasive abrasive abrasive is mainly made of diamond, cubic boron nitride and other abrasive with the binder. Because of the high price of diamond and cubic boron nitride, and have very good abrasion resistance, the abrasive abrasive and abrasive material are different from ordinary abrasive, and there is a transition layer and matrix. The super hard abrasive layer is a part of the cutting part, which is composed of a super hard abrasive and a binder. The matrix is supporting role in grinding, composed of metal, such as bakelite or ceramic materials. The transition layer is used to connect the matrix and the super hard abrasive layer, which is composed of a binder, and sometimes can be omitted. Commonly used binders resin, metal, electroplating metal and ceramics, etc.. The manufacturing process of the bonded abrasive tool includes: the ingredients, the mixture, the molding, the heat treatment, the processing and the inspection. With different binders, manufacturing processes are not the same. The main use of the ceramic bonded abrasive tool, the abrasive and binder according to the formula of the weight ratio of the mixture, placed in the mixing machine, into the metal mold, forming a grinding tool in the press. The blank is dried in a kiln and the firing temperature is about 1300 degrees centigrade. When the low melting point is used, the sintering temperature is lower than 1000. And then according to the provisions of the size of the exact shape of the final product. Resin bonding abrasive tool is generally formed in the press under the condition of room temperature, and it also has a hot pressing process which is used to heat the edge under the heating conditions. Hardening in the hardening furnace. When the phenolic resin was bonded, the hardening temperature was 180~200. The rubber bonded abrasive tool mainly adopts the mixing material of the roller machine, and rolls into the sheet, and then uses the cutting tool and cutting tool. After forming, the temperature is 165~180. The manufacturing process of metal bonded abrasive tool has two kinds of powder metallurgy method and electroplating method, which is mainly used in the abrasive abrasive abrasive. Powder metallurgy method is used as a binder, such as bronze, the material is used in hot pressing or under the condition of room temperature compression molding, and then sintering processing. Electroplating method to nickel or nickel cobalt alloy, such as electroplating metal, according to the plating process will be fixed on the substrate material, made of abrasive. Special varieties of abrasives are sintered corundum abrasives and fiber abrasives, etc.. Sintered corundum abrasives are made of alumina powder and appropriate amount of chromium oxide, forming, sintering at about 1800. This kind of abrasive structure is compact and has high strength, which is mainly used in the processing of watches and clocks, instruments and other components. Fiber abrasive tool is used to contain or adhere to the abrasive fiber silk (such as nylon) made of raw materials, it's good elasticity, mainly used for metal materials and its products.
