Analysis of Raw Materials Deciding Quality of Resin Grinding Wheel

Resin grinding wheel has an irreplaceable role for grinding in the industrial production. High quality resin grinding wheel has better using effect, longer service life, and of course, they are popular with users. The quality of resin grinding wheel is decided by raw materials that are used to produce resin grinding wheel. Good raw materials can produce high quality grinding wheels but bad raw materials can’t.

A, Powder phenolic resin: For powder phenolic resin, flow length, particle size, methenamine content and fluctuation of gel time will affect the quality stability of grinding wheel. The process of powder phenolic resin is the most important performance indexes affecting bond structure, and the particle size affect the dosage of wetting agents, and the volatile content is also very important. In the actual production process of grinding wheel, it is necessary to ensure the stability of batch powder resin performance, so as to ensure the quality of grinding wheels.

B, The stability for mesh technical indicator: The mesh is initially used in resin grinding wheel, whose most important role is to improve the strength of grinding wheel. With the constant improvement of the performance of resin grinding wheel, the role of mesh in resin grinding wheel becomes very important. It is mainly displayed in the strength fluctuation of grinding wheel, deformation of slicing, etc. The rubber content will affect the intensity and viscosity of grinding wheel, and cutting grinding performance of resin grinding wheel. In theory, under the stable condition of grinding wheel production process, the more the mesh has higher rubber, the higher the strength of grinding wheel, the better the performance of bonding, the greater the stability of the cutting grinding at the same time.

C, Liquid phenolic resin: The solid content, viscosity, gel time and water soluble index of liquid phenolic resin have different fluctuation range and influence, so grinding wheel manufacturers must develop a suitable liquid resin technical indicators and scope according to their own product performance requirements, combining with their own mixing, molding and hardening process characteristics.

The hardness of resin grinding wheel and abrasive hardness are two different concepts. The same kind of abrasives can be made into different hardness resin grinding wheels. It mainly depends on the performance of the binder, quantity, and resin grinding wheel manufacturing process. The significant difference of grinding and cutting is that resin grinding wheel has "self-sharpening". Selecting the hardness of resin grinding wheel, is actually to select the sharpness of resin grinding wheel.