摘要
针对Q345B型钢表面结疤现象,从材料的化学成分、金相组织等方面进行了系统的分析与观察。分析结果表明:材料中的杂质含量高,轧制时产生内应力是导致表面结疤的主要原因。因此,进一步优化冶炼工艺制度、控制炼钢时钢液的化学成分和夹杂、保证钢液的纯净度,可以有效地预防钢材表面结疤缺陷。
In view of surface scab phenomenon of Q345 B steel,the chemical composition and metallographic structure were systemically analyzed and observed. The analysis results showed that the high level of inclusions in material and internal stress in rolling process were the main factors to cause surface scab. Therefore,the further optimization of smelting procedures,the control of chemical composition,inclusion and cleanliness of molten steel could effectively prevent the surface scab of steel products.
出处
《物理测试》
CAS
2016年第1期14-17,共4页
Physics Examination and Testing
