How to improve the mechanical strength of diamond grinding wheel
In order to improve the heat resistance and mechanical strength of phenolic resin binder in diamond grinding wheels, the modification of phenolic resin was achieved by adding various fillers in the preparation process of resin grinding wheels . If copper powder is added, the heat resistance of resin can be improved. Adding zinc oxide, chromium oxide and other substances can improve the mechanical strength of the resin. The addition of flake graphite, molybdenum disulfide and other soft materials can improve the grinding performance of resin bonded abrasive tools. However, the most effective way to improve the properties of phenolic resin is to add organic modifiers, which may be because organic substances are more compatible with phenolic resin in terms of structure and surface properties than inorganic substances. Polyimide resin is one of the best heat resistance resin, polyimide resin as binder preparation of diamond grinding wheel first appeared in the United State...