| 摘要: |
| 通过对应力和工艺的分析，认为焊接局部温度过高会产生焊接应力；环境潮湿会引起焊条吸潮，造成电弧不稳、飞溅增多，导致大量裂纹.通过在整个施工区域搭设保温棚、焊前预热、焊后保温、焊条烘干处理等多种手段，缓解了焊接裂纹问题. |
| 关键词: 堵板 焊接 裂纹 |
| DOI：10.3969/J.ISSN.1000-5137.2019.05.004 |
| 分类号:TK730.8 |
| 基金项目:国家自然科学基金（51608325） |
|
| Welding process of blocking plate in large power station |
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RONG Yi1, HUANG Xiong2, HE Fengqin1
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1.College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China;2.China Yangtze Power Co., Ltd., Yichang 443002, Hubei, China
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| Abstract: |
| Through the amending of welding process and environment,various means were applied comprehensively such as electrode drying treatment,greenhouses building in construction area,preheating,thermal insulation after welding and so on.After all the problems of welding crack were solved thoroughly. |
| Key words: blocking plate welding crack |
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