SURFACE REFORMING MATERIAL FOR IRON-BASED ALLOY, SURFACE REFORMING METHOD FOR IRON-BASED ALLOY, AND CASTING MOLD

摘要

PROBLEM TO BE SOLVED: To provide a surface reforming material with which the surface of an iron-based alloy can be reformed at a relatively low temperature, and to provide a surface reforming method. SOLUTION: The surface reforming material having the fowllowing component ratios is dissolved in an epoxy resin and a thinner to obtain a paste. Then, the paste is applied on the surface of a mold subjected to a soft-nitriding treatment, and the resulting mold is subjected to a heat treatment. The component ratios are as follows, by mass: 6-10% iron (Fe); 24-40% nickel (Ni); 5-10% cobalt (Co); 5-10% chromium (Cr); 1.3-10% aluminum (Al); 3-10% silicon (Si); 15-25% manganese (Mn);≤15% tungsten (W); 0.1-2% boron (B);≤2% carbon (C);≤3.2% molybdenum (Mo); and≤1% titanium (Ti). COPYRIGHT: (C)2010,JPO&INPIT