逆焊接加热处理防止复板结构应力腐蚀开裂的研究  

Study of Preventing SCC of Cladding Plate by Anti-Welding-Heating Treatment

作　　者：陈怀宁[1] 陈亮山[1] 林泉洪[1] 黄春呤 

机构地区：[1]中国科学院金属研究所

出　　处：《焊接学报》1999年第S1期22-26,共5页Transactions of The China Welding Institution

摘　　要：复板焊接结构出现应力腐蚀开裂的主要原因之一是拉伸残余应力的作用。本文提出了采用逆焊接加热处理原理制造表面压应力的新方法。采用此方法,可以方便地在复板表面形成数值稳定的双向压缩应力,有效避免了应力腐蚀裂纹的产生。该方法为彻底解决复板和其它类型容器应力腐蚀开裂提供了新途径。One of main reason for producing SCC in cladding plate weldments is the role of tensile residual stresses. The paper prompts a new process of making surface compressive residual stresses by the rule of Anti-Welding-Heating Treatment. By the method, the biaxil residual stresses with stable values may be obtained easily, and it can avoid SCC very effectively. The process gives a way to solve SCC for cladding plates and other structures.

关 键 词：逆焊接加热处理 应力腐蚀开裂 压应力 

分 类 号：TG44[金属学及工艺—焊接]