| 优化55 t LD-60t LF-CC 工艺提高钢的洁净度 |
| |
| 引用本文： | 曹立国,魏雪晴,丁秀中,赵宏. 优化55 t LD-60t LF-CC 工艺提高钢的洁净度[J]. 特殊钢, 2006, 27(1): 48-50 |
| |
| 作者姓名： | 曹立国 魏雪晴 丁秀中 赵宏 |
| |
| 作者单位： | 1石家庄钢铁有限责任公司，石家庄050031;2北京科技大学，北京100083 |
| |
| 摘 要： | 控制LD(氧气顶吹转炉)吹炼终点C-低碳钢0.08%～0.10%C、中碳钢0.10%～0.15%C、高碳钢 ≥0.20%C;通过LD 出钢时强化预脱氧，控制出渣钢下渣率达98%,控制LF精炼Als为0.020%～0.035%,保证精炼渣中(FeO)≤0.5%,喂CaSi线，50~80 L/min软吹氩时间≥7min以及全程保护浇注；中间包采用高效保温吸渣剂及稳定连铸操作等工艺措施，使石钢55t转炉-60tLF 冶炼流程在不进行真空处理的工艺条件下，连铸坯中氧含量控制在20×10-6以下
|
| 关 键 词： | 洁净钢 预脱氧 保护浇铸 |
| 收稿时间： | 2005-08-12 |
| 修稿时间： | 2005-08-12 |
Optimization of 55 t LD-60 t LF-CC Process to Upgrade Cleanliness of Steel |
| |
| Cao Liguo,Wei Xueqing,Ding Xiuzhong,Zhao Hong. Optimization of 55 t LD-60 t LF-CC Process to Upgrade Cleanliness of Steel[J]. Special Steel, 2006, 27(1): 48-50 |
| |
| Authors: | Cao Liguo Wei Xueqing Ding Xiuzhong Zhao Hong |
| |
| Affiliation: | 1 Shijiazhuang Iron and Steel Co Ltd, Shijiazhuang 050031;2 University of Science and Technology,Beijing 100083 |
| |
| Abstract: | The oxygen content in concasting billet has been controlled less than 20×10-⁶ in condition of non-vacuum treatment with 55 t LD-60 t LF melting flow sheet at Shijiazhuang Iron and Steel by the operation measures such as controlling LD blowing end-point carbon:low carbon steel 0.08%～0. 10%C;medium carbon steel 0. 10%～0. 15%C and high carbon steel ≥0.20% C,strengthening pre-deoxidation at steel tapping of LD,controlling slag tapping rate up to 98%, controlling Als 0.020%～0.035% during LF refining,to ensure refining(FeO)≤0.5%,feeding CaSi wire,50~80 L/ min soft blowing argon time ≥7 min,protective casting in whole process,using high efficiency holding and absorbing slag agent,and constant casting operation |
| |
| Keywords: | LD-LF-CC |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《特殊钢》浏览原始摘要信息 |
|
点击此处可从《特殊钢》下载全文 |
|
