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温挤成形工艺在生产中应用广泛,虽然通过对模具材料的热处理和表面处理技术,提高了模具自身性能,但由于模具长时间处于高温、高压状态,使得模具容易产生磨损和回火现象,严重影响模具的使用寿命。为了解决这个问题,具体分析了几种常用润滑材料的物理特性和润滑性能,针对不同类型润滑剂在不同环境条件下的润滑效果和冷却效果进行了对比研究,得到了水基润滑剂的适用温度范围。其中,水基石墨润滑剂在300~800℃挤压温度范围内,润滑性能可靠,可以使模具表面冷却,实现延长模具的使用寿命的设计构想。
Temperature extrusion forming process in the production of a wide range of applications, although through the mold material heat treatment and surface treatment technology to improve the performance of the mold itself, but because the mold for a long time in high temperature and pressure conditions, making the mold prone to wear and tempering, serious Affect the life of the mold. In order to solve this problem, the physical properties and lubrication properties of several commonly used lubricating materials are analyzed in detail. The lubrication effects and cooling effects of different types of lubricants under different environmental conditions are compared and the suitable temperature of water-based lubricant is obtained range. Among them, the water-based graphite lubricant at 300 ~ 800 ℃ extrusion temperature range, reliable lubrication, the mold surface can be cooled to achieve the design concept to extend the service life of the mold.