Polyimide resin diamond grinding wheel and preparation method thereof
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A polyimide resin and diamond grinding wheel technology, applied in the field of abrasive tool processing, can solve the problems of poor heat resistance, restricting the service efficiency and life of resin grinding wheels, etc., achieve excellent heat resistance, improve heat resistance and hardness, and improve The effect of service efficiency and life
Active Publication Date: 2012-12-12
安徽威铭耐磨材料有限公司
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Problems solved by technology
We know that resin grinding wheels mostly use phenolic resin as a bond at present, and the heat resistance of phenolic resin bonded grinding wheels is poor during the grinding proce...
Method used
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Embodiment 1
[0026] The polyimide resin diamond grinding wheel is made of the following raw materials in parts by weight: diamond abrasive 52, white corundum abrasive 6, garnet sand 5, polyimide resin powder 7, furfuryl alcohol 3, trioctyl trimellitate 1.2, Cryolite 6, gypsum powder 5, nano siliceous shale powder 3, copper powder 2.
[0027] The preparation method of polyimide resin diamond grinding wheel comprises the following steps:
[0028] (1) Compounding material
[0029] Weigh the raw materials according to the above ratio, then soak the brown corundum abrasive and garnet sand in furfuryl alcohol, mix the abrasive and furfuryl alcohol evenly, then add polyimide resin powder, epoxidized triglyceride, cryolite, Gypsum powder, nano-siliceous shale powder, and copper powder are quickly mixed and discharged;
[0030] (2) Sieve
[0031] Screen the mixed material particles through a sieve of 8-12 mesh for 1-2 times, and the particles that pass through the sieve are used as molding mater...
Embodiment 2
[0039] The polyimide resin diamond grinding wheel is made of the following raw materials in parts by weight: diamond abrasive 55, white corundum abrasive 8, garnet sand 7, polyimide resin powder 10, furfuryl alcohol 4, trioctyl trimellitate 1.5, Cryolite 7, gypsum powder 8, nano siliceous shale powder 5, copper powder 4.
[0040] The preparation method of polyimide resin diamond grinding wheel is the same as embodiment 1.
Embodiment 3
[0042] The polyimide resin diamond grinding wheel is made of the following raw materials in parts by weight: diamond abrasive 58, white corundum abrasive 9, garnet sand 9, polyimide resin powder 13, furfuryl alcohol 5, trioctyl trimellitate 1.8, Cryolite 8, gypsum powder 9, nano siliceous shale powder 6, copper powder 5.
[0043] The preparation method of polyimide resin diamond grinding wheel is the same as embodiment 1.
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Abstract
The invention discloses a polyimide resin diamond grinding wheel and a preparation method of the polyimide resin diamond grinding wheel. The polyimide resin diamond grinding wheel is prepared from the following components in parts by weight: 50-60 parts of diamond grinding material, 5-10 parts of white corundum grinding material, 5-10 parts of garnet sand, 5-15 parts of polyimide resin powder, 2-6 parts of furfuryl alcohol, 1-2 parts of trioctyl trimellitate, 5-10 parts of cryolite, 5-10 parts of gypsum powder, 2-5 parts of nano siliceous shale powder and 2-5 parts of copper powder. According to the polyimide resin diamond grinding wheel and the preparation method of the polyimide resin diamond grinding wheel, as polyimide resin serving as a binding agent has higher mechanical strength and excellent heat resistance, the durability of the prepared resin grinding wheel is improved greatly; as ceramic material is added into padding, the adhesive property is good, the grinding materials hardly fall off, the heat resistance and hardness of the resin grinding wheel are improved, and cracks formed by rigid grinding are reduced, thereby the use efficiency and service life of the resin grinding wheel are improved further; and in addition, since copper power is added, fast heat dissipation effect is achieved, a great deal of heat generated in a cutting process of the grinding wheel can be dissipated quickly, and the effect of lowering cutting temperature is achieved.
Description
technical field [0001] The invention relates to a polyimide resin diamond grinding wheel and a preparation method thereof, which belong to the technical field of grinding tool processing. Background technique [0002] Grinding wheel is the most important type of abrasive tool in grinding process. The grinding wheel is a porous body made by adding a binder to the abrasive, compacting, drying and firing. Grinding wheel is the most widely used type of grinding tool. It rotates at high speed when used, and can be used for rough grinding, semi-finishing and Fine grinding as well as grooving and parting off etc. The substance used to bond the abrasive in the grinding wheel is called a bonding agent. The performance of the bonding agent determines the strength, impact resistance, heat resistance and corrosion resistance of the grinding wheel. At present, the binder is mainly divided into four types: ceramics, resin, rubber and metal. Among them, the resin binder has high strengt...
Claims
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Application Information
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