To prepare tungsten disulfide lubricant for isothermal forging, three steps are needed: take the compositions of emulsion according to proportion, disperse the compositions uniformly and add nano tungsten disulfide into the emulsion. The preparation process is strict but easy.

Nano tungsten disulfide can be used in isothermal die forging to reduce the friction loss between working parts and improve their service lives. A dense protective film of tungsten disulfide will be formed during the forging process.

Tungsten disulfide lubricant used in isothermal forging is formed by adding nano tungsten disulfide to emulsion. It is a kind of new lubricating material with injection performance, insulating performance, lubricating performance and mold unloading performance.

Tungsten disulfide powder has excellent lubricity and high temperature resistance, so it is usually added to lubricating materials. The lubricating materials with tungsten disulfide powder have better lubrication performance and longer service lives.