宽厚板坯窄面鼓肚分析及解决措施

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

Analysis on Narrow Side Bulging of Slab and Improvement Measures

1. China National Heavy Machinery Research Institute, Xi'an 710032, Shanxi, China;
2. Chongqing Iron and Steel Co., Chongqing 400044, China;
3. Dalian Huarui Heavy Industrial Special Spare Co., Ltd., Dalian 116013, Liaoning, China

摘要: 重钢3^#连铸机浇300 mm厚16Mn系钢时窄面出现高达7~8 mm的鼓肚,分析发现浇注过程中存在结晶器窄面冷却强度弱、窄面锥度太小、窄面足辊跑锥等问题。通过对窄面足辊结构、结晶器锥度设定、窄面足辊与窄面铜板对弧、窄面足辊二冷水等参数进行优化,保证整个结晶器工作正常。实践表明,改进后结晶器最大跑锥0.5 mm,铸坯窄面鼓肚小于2 mm。
- 板坯连铸机 /
- 窄面鼓肚 /
- 结晶器 /
- 窄面足辊 /
- 冷却强度
Abstract: Bulging of 7~8 mm appeared at the narrow side during casting 300 mm thick 16Mn slabs with 3^# caster of Chongqing Iron and steel Company.Problems during casting were identified,such as weak cooling intensity of mold especially at narrow side,too small taper at the narrow side and taper change of narrow side foot roller.After optimizing the structure of narrow side foot roller,taper of mold,alignment of copper plate and narrow side foot roller and secondary cooling of narrow side foot roller,the mold was brought to normal operation.Operating practice indicated that the greatest taper change of the improved mold was merely 0.5 mm and bulging at narrow side smaller than 2 mm.
- slab continuous caster /
- narrow side bulging /
- mold /
- narrow side foot roller /
- cooling intensity