To provide powder for repairing a die-casting die capable of performing the surface modification of a die-casting die and the secure repair of its damaged part, and further capable of obtaining a repaired part or the like excellent in durability such as heat check resistance and erosion resistance.
The powder for repairing a die-casting die is alloy powder composed of at least one kind of carbide selected from NbC, VC and WC by ≤10 wt.% in total, and the balance Ni-Cr-Mo based heat resistant alloy or a powdery mixture of the powder of the above carbide with a particle diameter of ≤15 μm by ≤10 wt.%, and the balance powder of the above Ni based heat resistant alloy. The Ni-Cr-Mo based heat resistant alloy comprises 10 to 30 wt.% Cr, ≤10 wt.% Mo, ≤3 wt.% Fe, and Nb and Ta by 3 to 4 wt.% in total, and the balance Ni.
HASUIKE MASATO
KONDO TETSUYA
OFUJI TAKASHI
DAIDO STEEL CO LTD
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