| 7A19铝合金熔铸工艺及消除羽毛状晶缺陷的研究 |
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| 引用本文： | 李永春. 7A19铝合金熔铸工艺及消除羽毛状晶缺陷的研究[J]. 轻合金加工技术, 2004, 32(3): 16-19 |
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| 作者姓名： | 李永春 |
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| 作者单位： | 兰州铝业股份有限公司,西北铝加工分公司,甘肃,陇西,748111 |
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| 摘 要： | 介绍了7A19铝合金的熔铸生产工艺过程及该合金生产中存在的一些问题；通过试制研究制定出了合理的熔铸生产工艺制度；论述了铸锭低倍组织中羽毛状晶缺陷的产生原因和解决办法。
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| 关 键 词： | 铝合金 锆 羽毛状晶 晶粒细化 温度梯度 熔铸 |
| 文章编号： | 1007-7235(2004)03-0016-04 |
| 修稿时间： | 2003-12-06 |
Research of 7A19 Aluminium Alloy Melting - casting Process and Avoiding the Feather- crystal |
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| LI Yong-chun. Research of 7A19 Aluminium Alloy Melting - casting Process and Avoiding the Feather- crystal[J]. Light Alloy Fabrication Technology, 2004, 32(3): 16-19 |
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| Authors: | LI Yong-chun |
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| Abstract: | The process about 7A19 aluminium alloy melting-casting and some problems in production were introduced.The reasonable melting-casting production process institution was established by a trial research. The causes for feather-crystal defect in the cast macrostructure was analyzed. Some avoiding feather-crystal methods were given. |
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| Keywords: | 7A19 aluminium alloy Zr feather-crystal grain refining temperature gradient |
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