当前位置：首页 > 过刊浏览->2021年42卷第3期
低铝Cr5支承辊用钢锭的开发
Study on the Formation of Sliver Crystal Defect in Single Crystal Superalloy
浏览(2904) 下载(4)
- DOI:
- 作者:
- 魏 巍，李 虹，张玉亭，黄凤泽，张志强
WEI Wei, LI Hong, ZHANG Yuting, HUANG Fengze, ZHANG Zhiqiang
- 作者单位:
- 石钢京诚装备技术有限公司，辽宁 营口 115100
Shigang Jingcheng Equipment Development and Manufacturing Co., Ltd., Yingkou 115100, China
- 关键词:
- Cr5；钢锭；[Al]≤0.010%
Cr5; ingot; [Al]≤0.010%
- 摘要:
- 通过调整合金成分、渣料，优化 LF 精炼渣系，清理钢包残钢残渣，严格控制转炉出钢下渣。 LF 精炼渣系成
分为：52%～56% CaO、15%～20% Al2O3、13%～18% SiO2、5%～10% MgO、(TFe+MnO)≤0.5%、R 3.2~3.6。 控制模
温50～ 80 ℃，锭身浇铸速度 1.2～1.5 t/min，冒口浇铸速度 0.3～0.7 t/min，保证钢液面平稳上升，浇铸过程氩气保护。 结
果表明，可实现 Cr5 支承辊用钢锭成品[P]≤0.012%、[S]≤0.005%、[Al]≤0.010%和[Ti]≤0.005%。
By adjusting the alloy composition and slag materials, optimizing the slag system of LF refining, cleaning up the ladle residual steel residue, and strictly controlling the slag from the converter. The composition range of LF refining slag was 52%～56% CaO、15%～20% Al2O3、13%～18% SiO2、5%～10% MgO、 (TFe+MnO)≤0.5%, R 3.2~3.6. The mold temperature was controlled from 50 ℃ to 80 ℃, the pouring speed of ingot was 1.2~1.5 t/min, and the pouring speed of riser was 0.3~0.7 t/min, so as to ensure the smooth rise of molten steel level and the argon protection during the casting process. The results show that can realize Cr5 backup roll with ingot products [P]≤0.012%, [S]≤0.005%, [Al]≤0.010% and [Ti]≤0.005%.