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可靠的铸件焊接修复依靠对工件的仔细清理和预热 ,以减少在焊接热影响区形成高硬度马氏体和渗碳体。采用镍铁焊条可获得高强度、高韧性的焊缝 ,尤其适用于高强度灰铁铸件的焊接
Reliable casting repair repairs depend on careful cleaning and preheating of workpieces to reduce the formation of high-hardness martensite and cementite in the HAZ. Welded nickel-iron electrode for high strength and toughness, especially for high-strength gray iron castings