82A 高碳钢线材生产实践.pdfVIP

82A高碳钢线材生产实践 ·1 · 82A 高碳钢线材生产实践 曹树卫1,2 （1. 安阳钢铁集团有限责任公司生产管理处，河南安阳 455004 ； 2. 北京科技大学材料科学与工程学院，北京 100083 ） 摘 要 82A 高碳钢线材是生产钢丝绳、胎圈钢丝、胶管钢丝的重要原料。安阳钢铁集团有限责任公司通过对化学 成分设计、冶炼与连铸工艺、加热工艺、轧制工艺及冷却工艺等合理调整与优化，在 100t 转炉与高速线材轧机上 成功生产了φ5.5mm 规格的82A 高碳钢盘条。冶炼过程中，炉前出钢温度大于1600℃，精炼时间不小于50min；连 铸采用全保护浇注，结晶器电磁搅拌；轧钢过程中，加热采用侧进侧出步进梁式加热炉，控轧采用在精轧机组水冷 段后增加4 机架减定径机组，控冷采用带有“佳灵”装置的大风量高风压延迟冷却型斯太尔摩线。结果表明，82A 试验钢盘条力学性能良好，同一炉号、同一公称直径及同一轧制制度的盘条抗拉强度的波动范围不大于70MPa，盘 条金相组织索氏体含量达到90 ％以上，完全满足用户的使用要求。 关键词 高碳钢线材，化学成分，力学性能，金相组织 Production Practice of 82A High Carbon Wire Rod Cao Shuwei1,2 (1. Production Management Department of Anyang Iron Steel Group Co., Ltd., Anyang Henan 455004, China ; 2. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China) Abstract 82A high carbon wire rod is an important raw material of producing steel wire rope and steel wire for hose and bead wire. Based on design of chemical composition, reasonable adjustment and optimization of smelting and continuous casting process, reheating process, rolling process and cooling process etc., Anyang Iron And Steel Group Co., Ltd. produced successfully φ5.5mm high carbon steel wire rod grade C82DA for conversion to wire by 100t converter-high speed wire rod mill. In the course of smelting, the tapping temperature is more than 1600℃, and the refining time is no more than 50min; It uses full protective casting, and electromagnetic stirring of mould for continuous casting; In the course of steel rolling, it uses side charge and side discharge walking-beam furn