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BHW-35钢+H10Mn2NiMo焊丝+431焊剂的电渣焊焊缝,采用双相区处理(即930℃正火+750℃处理+650℃回火+630℃退火),其却贝冲击韧性比采用常规930℃正火+650℃回火+630℃退火处理有较大幅度的提高。
BHW-35 steel + H10Mn2NiMo +431 flux electroslag welding seam, the use of dual-phase processing (ie, normalized at 930 ℃ +750 ℃ + +650 ℃ annealing +630 ℃ annealing), Charpy impact toughness than the use of Conventional 930 ℃ normalizing + 650 ℃ tempering + 630 ℃ annealing treatment has a more substantial increase.