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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。通过对Ｚｎ－ Ｃａ 系磷酸盐润滑膜的研究及相应产品的开发，提高了ＺｎＣａ 系磷酸盐润滑膜的耐热性，可大大提高润滑性，进而延长模具的使用寿命
During the cold extrusion of the wire rod, the lubricating layer is destroyed due to the excessive surface temperature, and the reduction of the lubricating property increases the die loss. Through the research of Zn-Ca phosphate coating and the corresponding product development, the heat resistance of Zn-Ca phosphate coating can be improved, which can greatly improve the lubricity and prolong the service life of the mold