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6～10mm厚18-8型不锈钢对接双面焊焊接接头的冷弯是不锈钢压力容器制造过程中较难过关的项目,本文对不锈钢啤酒大罐制造过程中遇到的焊接工艺评定试板冷弯不合格问题,从工艺特点和焊接线能量的角度进行了分析和试验。认为线能量 q_v 的选择是其冷弯能否合格的关键。并推出了8mm1Cr18Ni9Ti 钢板冷弯合格的临界线能量值q_(vυ)(?)q_(υc)的提出,为制订正确的焊接工艺,选择合理的焊接规范提供了理论依据。
6 ~ 10mm thick 18-8 stainless steel butt-welded double-sided cold-formed joints are difficult to pass in the manufacturing process of stainless steel pressure vessel project, this article on stainless steel beer tank manufacturing process encountered in the assessment of cold-bending test panels Failure problems, from the process characteristics and welding line energy point of view of the analysis and testing. That the choice of line energy q_v is the key to its ability to pass the cold bend. And the introduction of q_ (v) q_ (υc), which is the critical line energy value of the cold bending of 8mm1Cr18Ni9Ti steel plate, is put forward, which provides a theoretical basis for formulating the correct welding process and selecting a reasonable welding standard.