| 湿砂型铸铁件的夹砂缺陷--湿砂型铸铁件缺陷讲座(三) |
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| 引用本文： | 于震宗,龚出群. 湿砂型铸铁件的夹砂缺陷--湿砂型铸铁件缺陷讲座(三)[J]. 现代铸铁, 2004, 24(5): 60-62 |
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| 作者姓名： | 于震宗 龚出群 |
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| 作者单位： | 1. 清华大学,北京,100084
2. 中国一拖集团公司第二铸铁厂,河南,洛阳,471004 |
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| 摘 要： | 介绍夹砂缺陷的特征及其形成机理。防止夹砂缺陷的主要措施是降低型砂的膨胀应力和提高型砂的热湿拉强度。介绍活化膨润土的简易鉴别方法和膨润土的活化技术。
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| 关 键 词： | 夹砂 膨润土 活化 |
| 文章编号： | 1003-8345(2004)05-0060-03 |
| 修稿时间： | 2003-11-17 |
Scab Defect of Green Sand Mould Iron Castings |
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| YU Zhen-zhong,GONG Chu-qun. Scab Defect of Green Sand Mould Iron Castings[J]. Modern Cast Iron, 2004, 24(5): 60-62 |
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| Authors: | YU Zhen-zhong GONG Chu-qun |
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| Abstract: | The features and formation mechanism of the scab defect was introduced. Reducing expansion stress of the moulding sand and increasing wet tensile strength of moulding sand are the main measures to prevent scab defect. A easy method to differentiate activated bentonite and the bentonite activation technique was introduced. |
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| Keywords: | scab defect bentonite activation |
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