| 6E390系列柴油机汽缸体裂纹的焊接 |
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| 引用本文： | 侯宏庆.6E390系列柴油机汽缸体裂纹的焊接[J].中国修船,2005(5):14-16. |
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| 作者姓名： | 侯宏庆 |
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| 作者单位： | 4805工厂,象山修船厂,浙江,象山,315718 |
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| 摘 要： | 柴油机汽缸体为灰口铸铁,当出现裂纹进行焊接时,由于片状石墨的存在,焊接后骤冷便会造成应力集中,产生冷裂纹,为了避免裂纹的出现,保证焊接质量,我们通过广泛的研究和实践,发现采用局部加热,电弧焊焊接并用乙炔焰保温的工艺,能够解决这一难题。
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| 关 键 词： | 汽缸体 灰口铸体 冷裂纹 热焊法 |
| 文章编号： | 1001-8328(2005)05-0014-03 |
| 收稿时间： | 2005-04 |
| 修稿时间： | 2005年4月1日 |
Welding of cracks on cylinder in 6E390 diesel engine |
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| HOU Hong-qing.Welding of cracks on cylinder in 6E390 diesel engine[J].China Shiprepair,2005(5):14-16. |
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| Authors: | HOU Hong-qing |
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| Abstract: | Cold cracks come into being because of stress-concentration after welding, which appears for existing of graphite-slice from grey casting pig that is the material for cylinder in diesel engine. To avoid cracks and guarantee welding quality, we solve this difficult problem by heating partially with arc welding and acetylene-flame insulating. |
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| Keywords: | cylinder grey casting pig cold crack heat-welding |
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