| 水平电磁连铸空心铜管坯组织和性能研究 |
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| 引用本文： | 李丘林,李新涛,李廷举,金俊泽.水平电磁连铸空心铜管坯组织和性能研究[J].稀有金属材料与工程,2006,35(7):1126-1128. |
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| 作者姓名： | 李丘林 李新涛 李廷举 金俊泽 |
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| 作者单位： | 1. 清华大学深圳研究生院,深圳,5180552;大连理工大学,辽宁,大连,1160233
2. 大连理工大学,辽宁,大连,1160233 |
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| 摘 要： | 提出在中试水平的空心铜管坯水平连铸过程中施加工频电磁场,分析其对铜管坯组织和性能的影响.结果表明：与未施加电磁场时相比,施加电流强度为140A的工频电磁场后,水平连铸空心铜管坯的组织显著细化,平均晶粒度由未施加磁场时的3.1提高到8.3,周向组织均匀性也得到明显改善;抗拉强度提高40%左右,延伸率提高50%左右.
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| 关 键 词： | 电磁场 水平连铸 铜管坯 凝固组织 力学性能 |
| 文章编号： | 1002-185X(2006)07-1126-03 |
| 收稿时间： | 2005-04-30 |
| 修稿时间： | 2006-03-02 |
Structure and Property of Cu Tube by Horizontal Electromagnetic Continuous Casting |
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| Li Qiulin,Li Xintao,Li Tingju,Jin Junze.Structure and Property of Cu Tube by Horizontal Electromagnetic Continuous Casting[J].Rare Metal Materials and Engineering,2006,35(7):1126-1128. |
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| Authors: | Li Qiulin Li Xintao Li Tingju Jin Junze |
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| Affiliation: | 1. Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; 2. Dalian University of Technology, Dalian 116024, China |
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| Abstract: | In order to improve the quality of hollow Cu tubes, a horizontal continuous casting technology was developed in a pilot scale by using electromagnetic field of commercial frequency, and the effect of electromagnetic field on structure and mechanical properties were studied. The results show that the structure of hollow Cu tubes is refined substantially with the application of electromagnetic field and the average grain grand is increased from 3.1 to 8.3 and the uniformity along the circumference of the structure is improved obviously at the same time. The tensile strength is increased by 40% and the elongation is improved by 50% averagely if compared to those without electromagnetic field. |
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| Keywords: | electromagnetic field horizontal continuous casting Cu tube solidification structure mechanical properties |
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