Mn系无磁球墨铸铁的研制  

Research on Manganese Subgroup Nonmagnetic Nodular Cast Iron

作　　者：李明弟[1] 李大勇[1] 李强[1] 李海鹏[2] 孙一民[1] 

机构地区：[1]山东建筑大学材料科学与工程学院,山东济南250101 [2]山东省经济管理干部学院,山东济南250014

出　　处：《热加工工艺》2014年第5期53-55,59,共4页Hot Working Technology

基　　金：山东省科技发展计划项目(2011GSF11611);济南市科技发展计划项目(201102051)

摘　　要：为寻找一种原材料来源较广、成本较低的无磁球墨铸铁材料，采取合金优化、球化处理、硅铁和铝联合孕育以及热处理技术，对Mn系无磁球墨铸铁进行了研制。结果表明，恰当的Si／in（0．5～0．6）和铜（1．5％～3％）配合、硅铁和铝联合孕育处理，可在铸态下获得性能优良的无磁球墨铸铁；热处理可以进一步改善Mn系无磁球墨铸铁的磁导率、力学性能和机械加工性能。To search a non-magnetic nodular cast iron material with the raw material of extensive sources and low cost, the non-magnetic nodular cast iron which belongs to manganese base series was developed by alloy optimization, spheroidizing, joint inoculation of ferrosilicon and alurninium and heat treatment. The results indicate that non-magnetic nodular cast iron with good performance can be obtained in the state of as-cast by combining Si/Mn （0.5-0.6） with copper （1.5%-3%） appropriately and inoculating ferrosilicon and aluminium together. Furthermore, the permeability, mechanical properties and machinability of the non-magnetic nodular cast iron which belongs to manganese base series are improved by heat treatment.

关 键 词：无磁球墨铸铁 奥氏体 渗碳体 磁导率 

分 类 号：TG143.5[一般工业技术—材料科学与工程]