Polyvinyl acetal resin grinding wheel and production method thereof
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A polyvinyl acetal resin and grinding wheel technology, applied in the field of abrasive tool processing, can solve the problems of restricting the service efficiency and life of resin grinding wheels, poor heat resistance, etc., and achieve improved heat resistance and hardness, excellent heat resistance, and stickiness good knot performance
Active Publication Date: 2012-12-19
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 process, which greatly restricts the use efficiency and life of resin grinding wheels. Therefore, a new Resin grinding wheel with high heat resistance has become a hot spot of current research
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Embodiment 1
[0026] The polyvinyl acetal resin grinding wheel is made of the following raw materials in parts by weight: CBN abrasive 51, zirconium corundum abrasive 5, silicon carbide powder 6, polyvinyl acetal resin powder 6, furfural 2, triisooctyl trimellitate 1.2, cryolite 5, bauxite 6, nano siliceous shale powder 3, tool steel powder 2.
[0027] The preparation method of polyvinyl acetal resin 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 silicon carbide powder in furfural, mix the abrasive and furfural evenly, then add polyvinyl acetal resin powder, epoxidized triglyceride, cryolite , bauxite, nano siliceous shale powder, tool steel powder, mixed and discharged quickly;
[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 ma...
Embodiment 2
[0039] The polyvinyl acetal resin grinding wheel is made of the following raw materials in parts by weight: CBN abrasive 53, zirconium corundum abrasive 7, silicon carbide powder 8, polyvinyl acetal resin powder 10, furfural 4, triisooctyl trimellitate 1.5, cryolite 7, bauxite 8, nano siliceous shale powder 5, tool steel powder 4.
[0040] The preparation method of polyvinyl acetal resin grinding wheel is the same as embodiment 1.
Embodiment 3
[0042] The polyvinyl acetal resin grinding wheel is made of the following raw materials in parts by weight: CBN abrasive 56, zirconium corundum abrasive 8, silicon carbide powder 9, polyvinyl acetal resin powder 13, furfural 5, triisooctyl trimellitate 1.7, cryolite 9, bauxite 8, nano siliceous shale powder 6, tool steel powder 5.
[0043] The preparation method of polyvinyl acetal resin grinding wheel is the same as embodiment 1.
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Abstract
The invention discloses a polyvinyl acetal resin grinding wheel and a production method thereof. The polyvinyl acetal resin grinding wheel comprises the following materials in weight by parts: 50-60 parts of CBN abrasives, 5-10 parts of zirconia corundum abrasives, 5-10 parts of silicon powders, 5-15 parts of polyvinyl acetal resin powders, 2-6 parts of furfural, 1-2 parts of trioctyl trimellitate, 5-10 parts of cryolite, 5-10 parts of bauxite, 2-5 parts of nanometer siliceous shale powders and 2-5 parts of tool steel powders. The binder polyvinyl acetal resin used by the invention has high mechanical strength and good heat resistance, and the durability of the prepared resin grinding wheel is greatly improved. According to the invention, ceramic materials are added into a filer, thus the polyvinyl acetal resin grinding wheel has good bonding performance, the abrasives do not easily fall off, the heat resistance and the hardness of the resin grinding wheel are improved, cracks formed by rigid grinding are reduced, and the service efficiency and the service life of the resin grinding wheel are improved; and in addition, as the tool steel powders are added, thus the heat dissipation is fast to be beneficial for fast dissipating a large number of head emitted during cutting of the grinding wheel the role of reducing the cutting temperature is played.
Description
technical field [0001] The invention relates to a polyvinyl acetal resin 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 strength...
Claims
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Application Information
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