Components for glass manufacturing and their manufacturing methods

Abstract

[Problem] To improve the wear resistance of a coating formed by a Ni-based self-fluxing alloy in a glass manufacturing component. [Solution] A glass manufacturing component 1 for conveying or forming glass with a viscosity of logη = 3 to 14.6 has: a metal body 11 and a coating 12 formed on the surface of the body by a Ni-based self-fluxing alloy. The Ni-based self-fluxing alloy contains: greater than 0% by mass and less than 3% by mass of P, greater than 0% by mass and less than 5% by mass of Si, and Ni residue in greater quantities than other components. The metal structure of the coating contains: a first phase and a second phase. The P concentration of the first phase is higher than the average P concentration of the Ni-based self-fluxing alloy as a whole, and the P concentration of the second phase is lower than the P concentration of the first phase. In an image obtained by microscopic observation of the metal structure, the area ratio of the second phase in a 10 μm square region is greater than 0 and less than 0.7.

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