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Failure Analysis on Safety Valve Jointing Weld of Power Utility Boiler
Author(s): 
Pages: 74-77
Year: Issue:  6
Journal: Heat Treatment

Keyword:  安全阀连接焊缝性能应力;
Abstract: 电站锅炉热管往往由于安全阀连接焊缝开裂而失效.对天津某电厂的安全阀连接焊缝测定了材料的性能和应力.结果表明,安全阀连接焊缝开裂主要是由于安全阀动作时产生的瞬间动态应力所致.采用液压式阻尼器能有效防止安全阀连接焊缝开裂.
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