| 空心管坯软接触电磁连铸技术研究 | |
| 李丘林 ; 李廷举 ; 金俊泽 ; LI Qiu-lin ; LI Ting-ju ; JIN Jun-ze | |
| 2010-06-07 ; 2010-06-07 | |
| 关键词 | 空心管坯 软接触 电磁连铸 弯月面 hollow billet soft contact electromagnetic continuous casting meniscus TG249.7 |
| 其他题名 | Study on soft-contact electromagnetic continuous casting of hollow billet |
| 中文摘要 | 提出空心管坯软接触电磁连铸方法,以Sn-3.5%Pb合金为模拟金属,采用激光实测的方法研究了不同电源功率下弯月面形状,并进行了空心管坯软接触电磁连铸实验.研究表明:施加中频电磁场,管坯型腔内熔体形成具有一定高度的悬浮液柱;功率增加,弯月面隆起高度增加,金属熔体与外结晶器之间的接触角增大,接触点位置降低,对金属熔体与内结晶器之间的接触角影响不大,与内结晶器的接触点上升;与普通连铸空心管坯相比,软接触电磁连铸空心管坯的表面质量光洁,凝固组织得到显著细化.; Soft contact electromagnetic continuous casting of hollow billet was developed.Sn-3.5%Pb(wt%) was used as experimental material to study the effect of electromagnetic field on meniscus contour and the quality of hollow billets.The results indicate that a suspended melt column with certain height could be formed in the mold while a middle frequency electromagnetic field is imposed;the height of meniscus raises with the increasing of power,the contact angle between melt and outer-mold is increased,the location of contact point descends;the contact angle between melt and inner-mold has no change and the contact point of melt and inner-mold ascents.Compared with that of those produced by using traditional continuous casting techniques,the quality of hollow billets produced by using soft contact electromagnetic continuous casting technique is remarkably improved: surface quality becomes more smooth and solidification structure is refined.; 国家自然科学基金-上海宝钢“钢铁联合研究基金”资助项目(50270417) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/44975]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 李丘林,李廷举,金俊泽,等. 空心管坯软接触电磁连铸技术研究[J],2010, 2010. |
| APA | 李丘林,李廷举,金俊泽,LI Qiu-lin,LI Ting-ju,&JIN Jun-ze.(2010).空心管坯软接触电磁连铸技术研究.. |
| MLA | 李丘林,et al."空心管坯软接触电磁连铸技术研究".(2010). |
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