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通过选用不同埋弧焊焊接参数,对09MnNiDR钢进行相应的工艺评定试验。指出了影响09MnNiDR钢埋弧焊接头低温韧性的主要因素,并提出了焊接时应采取的工艺措施。
Through the selection of different submerged arc welding parameters, the corresponding 09MnNiDR steel process evaluation test. The main factors affecting the low temperature toughness of the submerged arc welded joint of 09MnNiDR steel are pointed out and the technical measures to be taken during welding are put forward.