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传统的易切削铅黄铜中含有的铅元素对环境和人都有极大的危害,所以急需寻找一种或者多种元素来替代易切削铅黄铜中的铅。本文介绍了易切削黄铜的发展现状,并经过对比分析其性能了解几种有发展前景的易切削黄铜。从易切削黄铜的切削特点出发研究其易切削的本质,并通过添加微量元素如Ni、P、Ca等,以及稀土元素Ce来改善黄铜的切削性能,达到易切削黄铜低铅或者无铅的目的。
The traditional lead-free lead in lead-free brass has a great harm to the environment and people, so it is urgent to find one or more elements to replace lead in easy-cutting lead-brass. This article introduces the current situation of the development of free-cutting brass, and through the comparative analysis of its performance to understand several promising cutting brass. From the cutting characteristics of easy-cutting brass to study its cutting nature, and by adding trace elements such as Ni, P, Ca, and rare earth elements Ce to improve the cutting performance of brass to achieve low cutting brass or lead The purpose of lead.