How to Keep Quality Stability of Resin Grinding Wheels?

The quality stability of resin grinding wheel exists largely in the following two aspects:

A. The changes of product strength and cutting grinding performance of resin grinding wheel in a certain period (under normal air temperature and humidity conditions);

B. The changes of each batch grinding wheel strength and cutting grinding performance of resin grinding wheel in production cycle (in different seasons).

The above two cases can be both expressed by strength retention rate and cutting grinding performance degradation rate.

Raw materials’ effect on the quality stability of resin grinding wheel mainly displays in:

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

In addition, we must properly store liquid phenolic resin, because it is very unstable. Even at room temperature, the condition of technical indicators will change too. Grinding wheel manufacturers must store liquid phenolic resin under the condition of low temperature, to ensure the stability of liquid phenolic resin, and the stability of resin grinding wheel blending, to ensure the stable quality of resin grinding wheel.

B. 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.

In this aspect, flow length should be first considered. These indicators show resin’s changes under certain experimental conditions. They are only resin performances, and the effect on grinding wheel products, only depends on the practical application of each resin grinding wheel manufacturer.

Powder resin process is the most important performance index affecting bond structure, and particle size will affect the dosage of wetting agent, and the volatile content (free phenol, moisture) is also very important.

For more infomation of high quality resin grinding wheel, please visit the following companies: Luoyang Xiwei Abrasives Co., Ltd., ZHEGNZHOU BOSDI ABRASIVES CO.,LTD. and CIPIE(Henan)Import and Export Trade Co.,LTD.