Patent ID: 8927111
Filing Date: 2015-01-06
Classification: C22C,C23C,Y10T

Abstract:
1. A surface coating material for forming a coated layer on a surface of a molten zinc bath member, wherein the surface coating material consists of WC powder particles and a binder metal, wherein a blending ratio of the binder metal to the WC powder particles is 5 to 25% by mass, wherein the binder metal constitutes an alloy structure having a single phase, wherein the binder metal is an alloy comprising Co and one or more of Ni, Al, Si, Mo, Nb, Cr, W and Ta, wherein the binder metal comprises one or more of 10 to 75% by mass of Ni, 23 to 35% by mass of Al, 0.2 to 6.0% by mass of Si, 0.2 to 15% by mass of Mo, 0.2 to 11% by mass of Nb, 0.2 to 8% by mass of Cr, 0.2 to 10% by mass of W, and 0.2 to 5% by mass of Ta relative to the total amount of the binder metal in addition to Co, wherein the binder metal is provided in a form of an alloy powder containing 10 to 75% by mass of Ni relative to the total amount of the binder metal in addition to Co, and the alloy powder is mixed with WC powder and granulated to a powder having a particle diameter of 5 μm or more and 75 μm or less, and wherein the binder alloy is a Co base alloy.