摘要
从结晶器的结构入手,用整体式结晶器替代原有独立结晶器,大幅提高了结晶器的耐热变形抗力。同时,改进结晶器水道,避免了因冷却水“短路”造成的水流量不均匀而引起的铜管铸坯组织不均匀、壁厚均匀性差等问题。将改进后的结晶器应用到生产实际中,石墨模具平均寿命从现有的55.9 h提高到117.6 h以上,铸坯壁厚偏差由1.05 mm减少到0.27 mm,铸坯等轴晶率由30%提高到80%。
In this paper,starting from the structure of the mould,the integral mould is used to replace the original independent mould,which greatly improves the heat resistance and deformation resistance of the mould.At the same time,the water channel of the crystallizer is improved to avoid the problems of uneven microstructure and poor wall thickness uniformity caused by the uneven water flow caused by the“short circuit”of cooling water.The average life of graphite mold is increased from 55.9h to 117.6h,the wall thickness deviation of billet is reduced from 1.05mm to 0.27mm,and the equiaxial crystal rate of billet is increased from 30%to 80%.
作者
吕学强
张忠涛
陈魁
程大勇
陈会国
Lv Xueqiang;Zhang Zhongtao;Chen Kui;Cheng Dayong;Chen Huiguo(Golden Dragon Precision Copper Pipe Group Co.,Ltd.,Chongqing 404100,China;Zhongke Jinlong Metal Material Development Co.,Ltd.,Chongqing 404100,China;Chongqing Pinghu Golden Dragon Precision Copper Pipe Co.,Ltd.,Chongqing 404100,China)
出处
《有色金属加工》
2025年第3期43-46,共4页
Nonferrous Metals Processing
基金
重庆市万州区重大项目(cstc2020jscx-msxmX0145)。
关键词
水平连铸
结晶器
金相组织
壁厚均匀性
horizontal continuous casting
crystallizer
metallographic structure
wall thickness uniformity
