铜业工程Issue(3)：119-130,12.DOI:10.3969/j.issn.1009-3842.2024.03.011
废杂铜直接制杆产业化成套技术
Industrialized Complete Technology of Direct Making Rod with Scrap Copper
摘要
Abstract
About 94%scrap copper is used for recycled copper rod in China.However,there are problems such as non-standardized classification and recycling system for scrap copper,backward technology and equipment for manufacturing rods,and imperfect stan-dards and evaluation systems,which lead to low quality of recycled copper rods.In order to solve these problems,with the support of National Science and Technology Support Program,through cooperation of industry,university and research for ten years,this paper de-veloped industrialized complete technology of direct making rod with scrap copper.The classification system of scrap copper was estab-lished,and it realized rapid impurity removal from scrap copper.An innovative furnace group was integrated,which combined shaft fur-nace,refining furnace and holding furnace.The qualified copper melt(Cu+Ag≥99.90%,O＜400×10-6)for electrical engineering was successful continuously produced by scrap copper with copper content of 92%or more.The direct making rod of low-grade scrap cop-per was realized.Five wheels continuous casting,two rolls continuous rolling and the whole auxiliary system were developed,which could automatically control continuous casting copper melt level and joint coordination of metallurgical furnace group.A demonstration line which could stably product high-quality recycled copper rods was established.The results of National Wire and Cable Testing Center showed that main component(Cu+Ag)was beyond 99.90%,conductivity was beyond 100.5%IACS,oxygen content was below 400×10-6 and elongation was beyond 38%,which met the requirements of national and industrial standards.关键词
废杂铜/再生制杆/冶金炉组/高值利用/精炼Key words
scrap copper/recycled copper rods/metallurgical furnace group/high value utiliation/refine分类
矿业与冶金引用本文复制引用
饶勇平,张深根,林映春,丁云集,黄崇祺,欧惠..废杂铜直接制杆产业化成套技术[J].铜业工程,2024,(3):119-130,12.基金项目
国家科技支撑计划课题(2011BAC10B01)资助 （2011BAC10B01）
