棒线材免加热工艺中的铸坯提温与保温技术  

Technology of raising and keeping temperature for CC-billet in DROF process

作　　者：刘相华[1,2] 曹燕[3] 刘鑫[2] 陈庆安[2] 

机构地区：[1]东北大学研究院,辽宁沈阳110819 [2]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110819 [3]安徽工业大学,安徽马鞍山243002

出　　处：《轧钢》2016年第3期8-11,共4页Steel Rolling

基　　金：国家自然科学基金资助项目(51374069)

摘　　要：保证铸坯温度能够满足免加热直接轧制的要求,是DROF工艺成功的关键。本文以铸坯提温和保温为重点,介绍了控制铸坯温度的技术思路:通过采取优化二冷区配水,提高拉速,来提高铸坯切断点处的铸坯温度;通过加盖保温罩和辊道提速来减少铸坯运送过程中的温度散失;通过采用液压剪替代火焰切割来缩短铸坯在连铸区运行时间等。分析了通过铸坯提温实现免加热工艺存在的几个技术问题,给出了相关的解决方案和参考数据。It is a key factor for raising and keeping the temperature of billet so as to meet the needs of direct rolling.The measures were discussed to control the billet temperature at the cutting point,including optimizing the usage of cooling water in secondary cooling area,raising up the cast speed,and using the hydraulic shear instead of flame cutting machine.The normal methods,such as using the insulation heater cover,raising up the speed of the roll table,were also introduced to keep the billet temperature.Some technical problems in the process were analyzed and the solving measures were discussed.

关 键 词：棒线材 直接轧制 铸坯提温 技术措施 

分 类 号：TG335.9[金属学及工艺—金属压力加工]