in wire cold extruding process, because the surface temperature is overhigh, the lubricating film is destroyed and the lubricating property is reduced, which increase the wear and tear of die.
线材在冷挤压过程中,由于表面温度过高而破坏了润滑层,润滑性能的降低增加了模具损耗。
the crankshaft bearing is one of the most importance frictions in the internal combustion engine, whose lubricating property can impact on the internal combustion engine work performance directly.