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A kind of polyaminobismaleimide resin grinding wheel and preparation method thereof

A technology of maleimide resin and polyamino bis, which is 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, hardness, and excellent heat resistance , Improve the efficiency and life of the effect

Active Publication Date: 2016-01-20
安徽威铭耐磨材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • A kind of polyaminobismaleimide resin grinding wheel and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The polyaminobismaleimide resin grinding wheel is made of the following raw materials in parts by weight: diamond abrasive 50, chrome corundum abrasive 5, green silicon carbide powder 6, polyaminobismaleimide resin powder 5, ethanol 2, formazan N-butyl acrylate 1.2, fluorite 5, glycerol triglyceride 6, borax 2, scrap iron powder 2.

[0027] The preparation method of polyaminobismaleimide resin emery wheel comprises the following steps:

[0028] (1) Compounding material

[0029] Weigh the raw materials according to the above ratio, then soak the chromium corundum abrasive and green silicon carbide powder in ethanol, mix the abrasive and ethanol evenly, then add polyaminobismaleimide resin powder, epoxidized triglyceride Ester, fluorite, glycerol triglyceride, borax, scrap iron 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 ar...

Embodiment 2

[0039] The polyaminobismaleimide resin grinding wheel is made of the following raw materials in parts by weight: 54 diamond abrasives, 8 chrome corundum abrasives, 8 green silicon carbide powders, 9 polyaminobismaleimide resin powders, 3 ethanol, and N-butyl acrylate 1.6, fluorite 7, glycerol triglyceride 7, borax 5, scrap iron powder 4.

[0040] The preparation method of polyaminobismaleimide resin grinding wheel is the same as embodiment 1.

Embodiment 3

[0042] The polyaminobismaleimide resin grinding wheel is made of the following raw materials in parts by weight: diamond abrasive 57, chrome corundum abrasive 9, green silicon carbide powder 9, polyaminobismaleimide resin powder 12, ethanol 4, formazan N-butyl acrylate 1.8, fluorite 8, glycerol triglyceride 8, borax 6, scrap iron powder 5.

[0043] The preparation method of polyaminobismaleimide resin grinding wheel is the same as embodiment 1.

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Abstract

The invention discloses a PAMB (polyamino bismaleimide) resin grinding wheel and a manufacturing method thereof. The PAMB resin grinding wheel is made of the following components in parts by weight: 50-60 parts of diamond grinding material, 5-10 parts of rubing grain grinding material, 5-10 parts of green silicon carbide powder, 5-15 parts of PAMB resin powder, 2-6 parts of ethanol, 1-2 parts of n-butyl methacrylate, 5-10 parts of fluorite, 5-10 parts of glycerol triglyceride, 2-5 parts of borax and 2-5 parts of scrap iron powder. The binding agent--PAMB resin used in the grinding wheel disclosed by the invention has higher mechanical strength and good heat resistance, and the durability of the manufactured resin grinding wheel is greatly improved. According to the manufacturing method disclosed by the invention, ceramic material is added in filler, and the ceramic material has a good adhesive property, so that the grinding material does not drop easily, the heat resistance and the hardness of the resin grinding wheel are improved, cracks formed by rigid grinding are reduced, the use efficiency of the resin grinding wheel is improved, and the service life of the resin grinding wheel is prolonged; and in addition, the scrap iron powder is added, and the heat dissipation is fast, so that a large amount of heat discharged in the cutting process of the grinding wheel is rapidly dissipated, and the cutting temperature is reduced.

Description

technical field [0001] The invention relates to a polyaminobismaleimide resin grinding wheel and a preparation method thereof, which belong to the technical field of abrasive 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 str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/32B24D3/34B24D18/00
Inventor 任丽萍任威铭
Owner 安徽威铭耐磨材料有限公司