连铸圆管坯热裂纹与包晶点的关系

详细信息

CC ROUND THERMAL CRACKING VS PERITECTIC POINTS

摘要: 以基本相图为依据，探索了碳素钢包晶点C含量（C_J值）的作图求法及计算方法。分析了钢中Si，Mn含量对C_J值的影响。生产数据证实，钢中C与C_J值越接近，越容易导致连铸圆管坯热裂纹的形成。找出了避免[C]与C_J值接近的途径。
- 碳素钢 /
- 连铸圆管坯 /
- 热裂纹形成原因 /
- C_J值
Abstract: Based on the basic phase diagram,studies concerning determination of the C content of carbon steel peritectic point （C_J） via plotting and calculating methods. Also discussed in the paper is the effect on the C_J value by contents of Si and Mn in the steel. Relevant operation data have proven that the closer to the C_J value the C content in the steel is, the more possible thermal.cracking of the CC round will be developed. An approach to preventing the C content from getting close to the C_J value is set up.
- Carbon steel /
- CC round /
- Causes responsible for thermal crack development /
- C_J value