铜及铜合金带材表面质量控制及技术现状
2016-11-24张文芹郑晨飞
张文芹 郑晨飞



摘要:
综述了目前国内高精度铜及铜合金带材表面的质量状况,提出表面物理缺陷和化学缺陷及其概念,描述了带材表面各种缺陷的形貌特征,分析了缺陷产生的原因及关键工序的控制要点;介绍了目前铜带表面质量控制采用的新技术、新材料及表面缺陷量化等技术的应用现状.分析表明,高精度铜带表面质量中起皮、划伤、擦伤和凹坑等表面物理缺陷是产品质量投诉的主要原因,而影响铜带表面质量的因素众多并贯穿于生产的整个过程.加强技术创新和新技术、新材料的应用,提高各工序的产品质量保障能力,同时精细管理、细心操作、采用缺陷量化检测手段是控制表面质量及提升产品品质的关键.
关键词:
高精度铜带; 表面缺陷; 质量控制; 缺陷量化
中图分类号: TG 146.1+1文献标志码: A
Abstract:
It was summarized the surface quality situation of the high accuracy copper and copper alloy strip in this paper.The concepts of surface physical defects and chemical defects were proposed for the first time.It was described the morphology of a variety of surface defects,analyzed the cause of it and key control points to reduce the defects of surface. It was introduced the new technologies,new materials to control the surface defects,and the using actuality of the surface defects quantizing technology.The results show that surface physical defects,example peeling,scratching,pit and other surface physical defects are major cause of complaints in the quality of copper strip.But there are many factors affecting the surface quality of copper,and in the whole process of production. It is necessary to strengthen technological innovation,use new technology and new materials,and improve the security capability of each process.Simultaneously, fine management,careful operation and use testing method of defect quantification are the key for controlling the standard of surface quality,and promoting products quality.
Keywords:
high accuracy copper strip; surface defect; quality control; defect quantifaction
现代化铜加工与传统铜加工相比,具有高精度、高性能和高表面质量等显著特点.在市场竞争日益激烈的今天,用户对铜及铜合金带材产品的质量要求越来越高.主要表现在要求高性能的同时,还对表面质量、性能、组织的均匀一致性、板型、残余应力及产品的外观、包装等提出具体要求.特别是高精度带材的表面质量,已经成为铜带生产企业越来越重视及影响质量成本的主要问题,并且成为产品进入高端市场的关键.在现行国家标准[1]中,对表面质量的宏观描述已不能完全适应现在市场的质量要求,因此以下几个方面是摆在铜带生产企业面前亟待研究和解决的课题:控制板带材的表面质量,减少擦划伤、起皮等表面物理缺陷和加强表面清洗和防护,减少氧化变色、腐蚀等表面化学缺陷;……
