| 熔模精铸麻点和麻坑缺陷的工艺改善实践 |
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| 引用本文： | 黄炳荣,车顺强,景宗梁.熔模精铸麻点和麻坑缺陷的工艺改善实践[J].铸造,2011,60(7). |
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| 作者姓名： | 黄炳荣 车顺强 景宗梁 |
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| 作者单位： | 1. 无锡鹰普精密铸造有限公司,江苏无锡,214028
2. 郑州大禹化工产品有限公司,河南郑州,450008 |
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| 摘 要： | 熔模精铸中麻点及麻坑是常见并较难解决的铸造缺陷,尝试面层采用专用刚玉砂制壳耐火材料,浇注后扣箱,浆料中加石墨,浇注后型壳局部风冷,浇注后型壳局部水冷,设置工艺钉等工艺措施,持续改善工艺条件,寻找到了克服叶片铸件上的麻点、麻坑、龟裂的有效方法.
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| 关 键 词： | 熔模精铸 缺陷 石墨浆 风冷 水冷 工艺钉 |
Improvement Process Practice of Black Pitting and Pockmark Defects for Investment Casting |
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| HUANG Bing-rong,CHE Shun-jiang,JING Zong-liang.Improvement Process Practice of Black Pitting and Pockmark Defects for Investment Casting[J].Foundry,2011,60(7). |
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| Authors: | HUANG Bing-rong CHE Shun-jiang JING Zong-liang |
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| Affiliation: | HUANG Bing-rong,CHE Shun-jiang,JING Zong-liang(1.Wuxi Eagle Prachanda Investment Casting Co.,Ltd.,Wuxi 214028,Jiangsu,China,2.Zhengzhou Dayu Chemical Products Co.,Zhengzhou 450008,Henan,China) |
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| Abstract: | Black pitting and pockmark are common defects in the investment casting,and are very difficult to solve.The effective method to eliminate black pitting,the pockmark and check crack was found after some process methods were applied,such as using corundum sand as surface sand,buckling box after pouring,adding graphite in coating slurry,part wind cooling and part water cooling after pouring,setting process nail and continuous improvement process condition. |
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| Keywords: | investment casting defect graphite slurry air-cooled water cooling process nail |
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