粉末冶金零件生产用润滑剂的性能改进与选择

The performance improvement and selection of lubricant for production of PM components

在粉末冶金零件生产中,压制成形与脱模过程中都需要进行润滑,最常用的方法是将润滑剂添加于金属粉末的预混合粉中。润滑剂的类型不仅影响粉末的压制性能,而且影响混合粉的其他性能和零件的生坯与烧结性能。评述了最常用的润滑剂的使用性能,并介绍最近20多年来粘结剂/润滑剂系统的性能改进与进展。

In the production of PM components, admixed lubricant in the metal powder mix is the most common way to achieve the lubrication needed during compaction and ejection of the components. However, the type of lubricant not only influences the compaction, but also the properties of the powder mix as well as the properties of the green component and sintered parts. The most commonly used lubricants were reviewed, and the advances in binder/lubricant systems in the past two decades were introduced.