Nitriding and solidification process

摘要

The invention relates to a quenching process for nitriding steel parts, in which the nitriding steel parts undergo initial quenching of austenitizing and quenching, then tempering, and then nitriding treatment in two consecutive stages. The first step is to reduce the nitriding potential kn (lower than the nitriding potential that forms the bonding layer on the steel surface) to decarburize the steel surface. The second step is high nitriding potential treatment,It is greater than or equal to the nitriding potential of the bonding layer formed on the steel surface.