本文针对目前无铅易切削低锌黄铜存在的成本高、无铅低铜黄铜存在脱锌腐蚀严重和强度低等问题,在无铅高锌黄铜中采用合金化技术、稀土和B-Zr复合变质处理技术、固溶与时效热处理技术,开发出高性能与低成本的无铅易切削高强耐蚀硅磷黄铜,其主要技术内容包括合金成分设计、变质处理技术和热处理技术三个方面。 In view of the high cost of lead-free cutting low-zinc brass, lead-free low-copper brass has the problem of serious dezincification corrosion and low strength, the alloying technique is adopted in the lead- Zr composite metamorphic technology, solid solution and aging heat treatment technology to develop high performance and low cost lead-free cutting high strength and corrosion resistant silicon phosphorus brass, the main technical content includes the alloy composition design, metamorphic treatment and heat treatment technology three aspect.