摘要
介绍了棒线材连铸坯免加热直接轧制技术的概念、工艺和关键技术,与传统工艺相比,免加热直接轧制技术可以实现大幅度节能减排。利用有限元法对铸坯切断后运送到轧制线期间的温度场进行了数值模拟,结果表明:300s后150mm×150mm铸坯的平均温度仍可达到1 000℃以上,可以满足直接轧制的需要。该技术在鞍山兴华钢铁集团公司得到了工业应用,取得了吨钢成本降低120多元的良好效果。
The concepts, method and key technology of direct rolling of free-heating for bar and rod mill （DROF） was introduced. Compared with the traditional process, the DROF can achieve the energy conservation and emis- sion reduction. The temperature field of transporting to rolling line process after billet cut was investigated by fi- nite element method. The results show that the average temperature of the 150 mm X 150 mm billet after 300 s can still be over 1000 ℃, which can meet the needs of direct rolling. The actual data of DROF applied in Anshan Xing- hua Iron and Steel Group Co. , Ltd. demonstrated that using DROF can be obtain good results of reducing cost more than 120￥/t.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2014年第2期13-16,共4页
Journal of Iron and Steel Research
基金
国家高技术发展计划(863计划)项目(2012AA03A503)
关键词
棒线材生产
免加热
直接轧制
节能减排
bar and rod production
free-heating
direct rolling
energy conservation and emission reduction
