应用六西格玛改进不锈钢产品的表面质量  

Application of Six Sigma Method in Stainless Steel Surface Quality Improvement in X Company

作　　者：施亮星[1] 何桢[1] 张敏[1] 

机构地区：[1]天津大学工业工程系,天津300072

出　　处：《组合机床与自动化加工技术》2008年第9期102-105,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金资助项目(70572044);教育部博士点基金新教师项目(20070056130);教育部新世纪人才支持计划NCET-04-0240资助

摘　　要：不锈钢表面质量是不锈钢性能及使用过程中的关键指标,文章通过六西格玛DMAIC改进流程来改善不锈钢表面质量问题。通过对表面质量问题界定、测量,针对测量结果对根本性原因进行分析,在实际生产过程中,通过对富Ti氧化物、氮化物、硫化物以及复合夹杂物这四项夹杂物进行控制,通过用AL还原来改变上述四种夹杂物的型态,从而改进了不锈钢表面质量,使废品降低了69%,收到了良好的效果。Stainless steel surface quality is a key index of stainless steel performance during use process. This paper tries to solve stainless steel quality using six sigma method. The surface quality problem is defined and measured at first. The root cause is analyzed through the measure results. The four inclusions of Ti oxide, Nitrides, Sulfide and complex inclusion are controlled in the actual production processes. At the same time, the shape of these four inclusions are changed by Aluminum reduction. At last, stainless steel surface quality is improved largely.

关 键 词：六西格玛 不锈铜 表面质量 质量改进 

分 类 号：TG65[金属学及工艺—金属切削加工及机床] F406.3[经济管理—产业经济]