| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas soft nitriding method that can achieve a good balance between the reduction of cost and the reduction of variation in quality, and to provide a method for manufacturing a bearing component. <P>SOLUTION: The gas soft nitriding method forms a nitride layer 14A on a surface layer part of an article 14 to be processed formed from steel by heating the article 14 to be processed inside a heat treatment furnace into which a heat treatment gas is introduced. The heat treatment gas contains ammonia gas and either or both of carbon dioxide gas and hydrogen gas, with the remainder being impurities. <P>COPYRIGHT: (C)2013,JPO&INPIT |
