中碳冷镦钢软化的发展现状和趋势  

Current Development Status and Trends of Softening Medium-carbon Cold-heading Steel

作　　者：田鹏[1] 惠卫军[2] 聂朝胤[1] 张步海[3] 于同仁[3] 

机构地区：[1]西南大学材料科学与工程学院,重庆400715 [2]钢铁研究总院结构材料研究所,北京100081 [3]2马鞍山钢铁股份有限公司技术中心,马鞍山243000

出　　处：《材料导报》2008年第12期44-47,共4页Materials Reports

基　　金：西南大学青年基金项目(SWUQ2006001);国家高技术研究发展规划资助项目(2003AA331030)

摘　　要：中碳冷镦钢采用球化退火工艺实现软化,其具有生产周期长、能量消耗多等特点。为了提高生产效率和线材质量、保护环境、节省能源等,中碳冷镦钢软化越来越受到紧固件厂和钢厂的重视。对此,国内外近年来开展了大量的研究工作,希望能开发出免退火或大幅度缩短退火软化时间的优质线材。评述了中碳冷镦钢软化的片改球、微细化、在线软化3种方法和软化机制,得出在线软化是今后中碳冷镦钢球化发展的必然选择。Medium-carbon cold-heading steel is softened by the spheroidizing annealing technology which has long cycle and excessive energy consumption. The softening gets more and more attention from fastener and steel companies in order to increase production efficiency and wire quality, protect environment, and save energy. Therefore, considerable efforts have been made to develop the high-quality wire which doesn＇t need annealing or can shorten the annealing and softening time greatly. In this paper, the methods and mechanism of softening such as lamellar conversion into sphericity, micro-refinement,on-line softening and its developing trends are reviewed.

关 键 词：中碳冷镦钢 片改球 微细化 在线软化 

分 类 号：TG142[一般工业技术—材料科学与工程]