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zhuan tai fa lan huan feng lie wen fen xi ji xiu fu fang an
Author(s): 
Pages: 92-94
Year: Issue:  10
Journal: Welding Technology

Keyword:  低碳调质钢延迟裂纹闭合焊缝拘束应力;
Abstract: 针对公司生产的某型号起重机转台Q960E钢法兰闭合焊缝裂纹进行研究,分析裂纹产生的原因。通过制订科学的焊接修复方案,改进了焊接工艺,对该焊缝进行了修复。经过长期在风电现场的吊装作业,经历了各种工况的验证,现场人员跟踪检查,该起重机转台法兰修复后的焊缝未出现开裂现象,整车使用状态良好,完成了多次风机吊装任务。实践验证了转台法兰环焊缝裂纹分析的准确性和修复方案的合理性。
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