Lubricants usually have the following performance requirements. <br>The friction surface has maximum mobility and sufficient viscosity; <br>has good lubricity; <br>has a suitable density (capacity); <br>has good suspension and dispersibility and sprayability; <br>has good mold release performance; <br>has good wettability; <br>Has high chemical stability; <br>has good thermal stability, heat resistance, heat insulation and cooling. <br>Lubricant's thermal expansion coefficient, softening start temperature, and use requirements.
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