Method for preparing sharp type epoxide resin binding agent diamond abrasive tool

Abstract

The invention discloses a method for preparing a sharp type epoxide resin binding agent diamond abrasive tool. A working layer is mainly made of diamond abrasive, an epoxide resin binding agent, a curing agent, an auxiliary abrasive, a filler and an auxiliary assistant. The method comprises steps of uniformly mixing 5-20 parts by mass of self-sharpening diamond, 5-28 parts by mass of auxiliary abrasive, 10-40 parts by mass of filler and 0.5-10 parts by mass of auxiliary assistant through a machine; uniformly mixing the mixture, 17-25 parts by mass of liquid epoxide resin and 5-25 parts of curing agent; injecting the fluid mixture to a plastic die through a pouring mode; and obtaining the sharp type epoxide resin binding agent diamond abrasive tool after curing. Compared with the method for preparing the abrasive tool through hot press molding, the method has the advantages that the process is simple, the energy is saved, the emission is reduced, the pollution of solid powder on the environment is reduced, the method is environment-friendly, the production speed is quick, the sharpening degree is high, the self-sharpening performance is good, the polishing effect is good and the service life is long.

Description

technical field [0001] The invention relates to an abrasive tool, in particular to a preparation method of a sharp epoxy resin bonded diamond abrasive tool. Background technique [0002] Superhard material resin abrasive tools are made of superhard material diamond or cubic boron nitride as abrasive, resin powder as binder, adding appropriate filling materials, and through the process of preparation, mixing, hot pressing, curing and mechanical processing. It is a processing tool with a certain geometric shape and can be applied to different grinding requirements. The proportion of resin bonded abrasives in superhard material abrasives is about 30%~60%. Superhard material resin abrasives have easy access to raw materials and low cost; low temperature curing, short production cycle, required equipment and manufacturing process The process is simple; the grinding efficiency is high; the abrasive tool has good self-sharpening, is not easy to be blocked, and the surface of the p...

AI Technical Summary

Problems solved by technology

[0007] 1. Epoxy resin has good wear resistance, but it is difficult to toughen diamond, the grinding effect is poor, and it is not sharp enough

[0008] 2. When the content of epoxy resin is lower than 50%, the mixture of diamond, resin, curing agent and filler has high viscosity and difficult flow, and the abrasive mold after molding will show large pores and poor pouring defects

[0009] 3. In the process of preparing epoxy resin diamond abrasive tools with different meshes, when the mesh number of abrasives is lower than 200 meshes, abrasive precipitation often occurs in the molded abrasives, resulting in uneven grinding