PAMB (polyamino bismaleimide) resin grinding wheel and manufacturing method thereof

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...

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