不同钙处理路线钢中夹杂物改性效果评估

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Evaluation of Effects of Inclusions Modification in Steel by Different Calcium Treatment Routes

1. Nuclear Power Institute of China, Chengdu 610041, Sichuan, China;
2. Metallurgical Engineering School, University of Science and Technology Beijing, Beijing 100083, China

摘要: 以BOF→LF→RH→CC流程生产的石油套管钢为对象,对不同钙处理工艺路线钢样中各成分含量及中包钢样中夹杂物形貌和成分分布进行对比分析,研究了钢中夹杂物的改性效果。结果表明,不同的钙处理路线钢样中各成分含量变化情况不同,且中间包钢样中夹杂物形貌和成分分布也有显著区别,以夹杂物改性指数评估钙处理改性夹杂物的效果,并结合各钙处理路线的优缺点,确定该钢厂生产石油套管钢的最优钙处理路线。
- 石油套管钢 /
- 钙处理 /
- 夹杂物 /
- 改性指数
Abstract: To investigate effects of inclusions modification in steel,the morphology and composition distribution of inclusions in liquid steel from tundish,and composition changes of molten steel in the production of oil casing steel by BOF→LF→RH→CC flow of three different calcium treatment routes were observed.It is found out that the composition changes of molten steel,and the morphology and composition distribution of inclusions in liquid steel from tundish has significant difference due to different calcium treatment routes.In order to select the optimum route,the effects of calcium treatment are evaluated by modification index of inclusions,and the advantages and disadvantages of different calcium treatment routes are considered.
- oil casing steel /
- calcium treatment /
- inclusion /
- modification index