| 树脂砂床身热裂纹缺陷的成因及防止 |
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| 引用本文： | 杨宝宏.树脂砂床身热裂纹缺陷的成因及防止[J].铸造技术,2004,25(1):34-35. |
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| 作者姓名： | 杨宝宏 |
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| 作者单位： | 宁夏长城须崎铸造有限公司,宁夏,银川,750021 |
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| 摘 要： | 分析床身铸件产生热裂纹的原因,发现热裂纹是铸件凝固过程中形成的残余热应力和型砂不良热效应相叠加的结果.根据分析的结果,采取修改铸件结构和增加变截面工艺拉筋两项工艺措施,从根本上消除了铸件热裂纹缺陷.
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| 关 键 词： | 床身铸件 热裂 铸造工艺 树脂砂 |
| 文章编号： | 1000-8365(2004)01-0034-02 |
| 修稿时间： | 2003年7月9日 |
Reason of Hot-cracking of Resin-sand Lathe Bed Casting and It's Elimination Method |
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| YANG Bao-hong.Reason of Hot-cracking of Resin-sand Lathe Bed Casting and It''''s Elimination Method[J].Foundry Technology,2004,25(1):34-35. |
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| Authors: | YANG Bao-hong |
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| Abstract: | Reason of hot-cracking of resin sand lathe bed casting occurring have been analyzed. It is founded that Hot-crack was caused by the casting residual hot stress and sand badness hot effect. Based on the conclusion, it is pointed that changing casting design and adding shift section rib are the efficient ways to avoid hot-crack. |
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| Keywords: | Bed Casting Hot-crack Foundry tethniques Resin-sand |
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