重型机械Issue(4)：30-33,4.
高碳钢小方坯二次枝晶间距与P偏析的关系
The relation between the secondary dendrite arm spacing in high carbon steel and segregation phosphorus
周景龙 1齐力军2
作者信息
- 1. 中国重型机械有限公司,北京100036
- 2. 首钢长白结晶器有限责任公司,河北秦皇岛066311
- 折叠
摘要
Abstract
The relation between the secondary dendrite arm spacing and the segregation of phosphorus in high carbon steel billet was studied.The results showed that maximum segregation point of phosphorus in billet was in the junction of the column crystal and the equiaxial crystal.The secondary dendrite arm spacing has the same changing regularity as the segregation rate of phosphorus does in billet,so the macro-segregation of phosphorus can be controlled by decreasing secondary dendrite arm spacing.The secondary dendrite arm spacing decreases effectively by reducing the casting speed and increasing secondary cooling water flow rate in a certain range.关键词
高碳钢/小方坯/二次枝晶间距/P偏析Key words
high carbon steel/ billet/ the secondary dendrite arm spacing/ segregation of phosphorus分类
矿业与冶金引用本文复制引用
周景龙,齐力军..高碳钢小方坯二次枝晶间距与P偏析的关系[J].重型机械,2013,(4):30-33,4.
