不锈钢磨屑中钢的回收及其性能研究  

Recovery Technology and Performance of Stainless Steel Swarf

作　　者：夏敏[1] 燕青芝[2] 葛昌纯[2] 王浩强[2] 郭双全[1] 

机构地区：[1]西南交通大学材料科学与工程学院,四川成都610031 [2]北京科技大学材料科学与工程学院特种陶瓷粉末冶金研究所,北京100083

出　　处：《铸造技术》2010年第2期172-175,共4页Foundry Technology

摘　　要：探索4Cr13不锈钢制品生产加工过程中的大量不锈钢磨屑的回收技术,并对回收的不锈钢进行了系统的性能研究。结果表明,通过浸泡洗涤,能够有效除去磨屑中的油污、非金属纤维等杂物;通过磁选,可以有效去除陶瓷颗粒夹杂;对回收的不锈钢粉体进行熔炼、热处理后,得到马氏体组织和Cr7C3型析出物;回收钢的拉伸强度、冲击韧度均达到同成分钢的性能指标,表明通过该回收技术,不锈钢磨屑可直接用于制品的制造;同时该回收技术对其他成分的磁性不锈钢磨屑具有普遍实用性。This work focused on the research of the recovery and properties of 4Cr13 stainless steel swarf produced in the machining process. The experiments showed that the oil and nonmetallic raffle in the swarf can be removed effectively by dipping and scouring; the polishing ceramic residues can be removed effectively by magnetic separation. After scouring and magnetic separation, the swarf powders were melted and heat treated. The Cr7C3 carbide and martensite structure were obtained by proper heat treatment. The mechanical properties testing results showed that the tensile strength, fracture toughness of the recovered stainless steel reached the level of the reference stainless steel. Results show that the stainless steel powder recovered by this technology can be used directly as materials, and this technology can be applied to the recovery of other magnetic stainless steel swarf.

关 键 词：不锈钢磨屑 回收技术 性能 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床]