| Research on horizontal electromagnetic continuous casting of copper tube blanks |
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| 引用本文： | Xintao LI1,Tingju LI1,Qiulin LI1,Yanqin SONG2,Jinli ZHANG2,Junze JIN1(1. Research Center of Foundry Engineering,Dalian University of Technology,Dalian 116023,Liaoning,P. R. China, 2.Henan Golden Dragon Precise Copper Tube Incorporation,Xinxiang 453000,Henan,P. R. China). Research on horizontal electromagnetic continuous casting of copper tube blanks[J]. 中国铸造, 2005, 2(2) |
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| 作者姓名： | Xintao LI1 Tingju LI1 Qiulin LI1 Yanqin SONG2 Jinli ZHANG2 Junze JIN1(1. Research Center of Foundry Engineering Dalian University of Technology Dalian 116023 Liaoning P. R. China 2.Henan Golden Dragon Precise Copper Tube Incorporation Xinxiang 453000 Henan P. R. China) |
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| 作者单位： | 1. Research Center of Foundry Engineering，Dalian University of Technology，Dalian 116023，Liaoning，P. R. China; 2.Henan Golden Dragon Precise Copper Tube Incorporation，Xinxiang 453000，Henan，P. R. China |
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| 摘 要： | 1. IntroductionCopper tubes are widely used in refrigerating andair-conditioning units. In recent years, traditional barecopper tubes have been gradually replaced byinner-grooved ones to improve the efficiency ofthermal-exchange for energy saving and environmental-protection [1].Based on the statistics of the Chineserefrigerating industry union, the demand for household airconditioners will be 30.5 million in 2005, which meansthat 91.6 thousand tons inner-grooved copper tubes willbe needed[1].…
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Research on horizontal electromagnetic continuous casting of copper tube blanks |
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| Xintao LI,Tingju LI,Qiulin LI,Yanqin SONG,Jinli ZHANG,Junze JIN. Research on horizontal electromagnetic continuous casting of copper tube blanks[J]. China Foundry, 2005, 2(2) |
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| Authors: | Xintao LI Tingju LI Qiulin LI Yanqin SONG Jinli ZHANG Junze JIN |
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| Abstract: | The effect of commercial frequency electromagnetic field on the solidification structure and mechanical properties of copper hollow blanks prepared by horizontal continuous casting method was investigated. The results show that when the electromagnetic field is imposed, columnar grains are evidently refined and fine equiaxed grains are obtained in the inner side of the cross-section. Moreover, with the increase of input current, the equiaxed grain region widens and the grains distribute more uniformly in the circumferential direction. Meanwhile, the mechanical properties are remarkably improved by the application of electromagnetic field. When the input current is 140 A, the tensile strength increases 15% and the elongation increases 10%. However, the electromagnetic field has no effect on the distribution of microelements. |
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| Keywords: | electromagnetic field horizontal continuous casting copper hollow blanks mechanical properties solidification structure |
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