| 铝合金铸件针孔问题的分析及解决 |
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| 引用本文： | 张洪仁,;董宇翚,;吴华峰.铝合金铸件针孔问题的分析及解决[J].中国材料科技与设备,2014(5):36-39. |
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| 作者姓名： | 张洪仁 ;董宇翚 ;吴华峰 |
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| 作者单位： | [1]新东北电气集团高压开关有限公司,辽宁沈阳110025; [2]沈阳铸造研究所,辽宁沈阳110022 |
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| 摘 要： | 介绍和分析了高压开关用大型法兰铝合金铸件针孔缺陷产生的原因和影响因素，依据分析结果，在采用二次精炼、延长氩气旋转喷吹除气时间、缩短铸件凝固时间等方面采取有效的控制措施，解决了此类铝合金铸件的针孔问题。
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| 关 键 词： | 铝合金铸件 法兰 针孔 含氢量 浇注工艺 |
Analysis and Solution of Alloy Castings Large Flange of Aluminum Pinhole Problem |
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| Affiliation: | ZHANG Hong-ren , DONG Yu-hui , WU Hua-feng (1. New Northeast Electric Group High Voltage Switchgear Co. , Ltd. , Liaoning , Shenyang, 110025, China; 2. Shenyang Research Institute of Foundry, Liaoning , Shenyang, 110022, China) |
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| Abstract: | Introduce and analyzed the reason and mechanism of high-voltage switch to use the large flange of aluminum alloy castings pinhole blemish produces and impact factor etc. , according to the analysis result, is adopting two refinements and prolong argon gas to revolve to spray to blow in addition to annoying time and shorten castings solidification time＇s etc. to adopt effective control measure, solved the pinhole problem of his kind of aluminum alloy castings. |
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| Keywords: | Aluminum alloy castings Flange Pinhole Contain amount of hydrogen Pouring process |
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