Practice of Reducing Inclusion in Q235 Slab for Chuanwei
-
摘要: 采用氮氧分析、大样电解和能谱分析等方法，对川威现有工艺下Q235铸坯的洁净度进行调查，分析钢水洁净度较低的原因，并优化Q235的冶炼工艺。结果表明，采用转炉渣洗操作，控制软吹时间和强度，减少大包下渣量，钢中大型夹杂和T[O]大幅度下降，钢水和铸坯洁净度明显提高。Abstract: Utilizing the methods of nitrogen oxygen analysis, sample-electrolyzing and spectrum analysis, cleanliness of casting slab of Q235 was surveyed under present process in Chuanwei, and the reason of low cleanliness of molten steel was analyzed, and the smelting process for Q235 was optimized.The results show that utilizing slag washing operation, controlling soft blowing time and strength, and reducing slag amount of ladle, large inclusions and T[O] in steel decreased dramatically, cleanliness of steel was significantly increased.
-
Key words:
- steel /
- cleanliness /
- Q235 slab /
- slag washing /
- inclusion
-
点击查看大图
计量
- 文章访问数: 72
- HTML全文浏览量: 19
- PDF下载量: 1
- 被引次数: 0
下载:
