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在动力机械制造业制造设备时,用电渣焊来焊接外壳的纵向焊缝,连接厚度在330毫米以下的22K、10ΓH2MФA、15X2HMФA、15X2MФA钢容器封头的板坯,以及拼接截面积在3米~2以下、重量在300吨以下的25X3MФA钢转子和支承辊轴毛坯。制造动力设备时,用电渣焊焊接Mn-Ni-Mo-V和Cr-Ni-Mo-V低合金钢,在冲击韧性、金属脆性转变温度以及成分、组织和性能的均匀性方面(沿焊缝截面和长度)都有很高的要求。大型毛坯电渣焊的特点是需投入
In the manufacture of power machinery manufacturing equipment, the use of electroslag welding to weld the longitudinal weld seam, connecting the thickness of 330 mm below the 22K, 10ΓH2MФA, 15X2HMФA, 15X2MФA steel container head slab, and splicing cross-sectional area of 3 meters ~ 2 or less, weighing 300 tons of 25X3MФA steel rotor and backup roll blank. In the manufacture of power equipment, the electroslag welding of Mn-Ni-Mo-V and Cr-Ni-Mo-V low-alloy steels was studied in terms of impact toughness, brittle transition temperature and composition, Seam cross-section and length) have high requirements. Large-scale blank electroslag welding is required to invest