COATING LAYER STRUCTURE OF A MOLD BASE MATERIAL TO PREVENT CRACKING DURING COATING

摘要

PURPOSE: A coating layer structure of a mold base material is provided to obtain high hardness and improved wear resistance by coating an ionitrided layer with carbon-doped nitride after plasma nitriding.;CONSTITUTION: A coating layer structure of a mold base material comprises an inonitrided layer formed on the surface of a base material, an intermediate coating layer formed on the ionitrided layer out of AlTiCrN, AlCrSiN, AlTiSiN, or AlTiCrSiN, and a surface coating layer formed on the intermediate coating layer out of AlTiCrCN, AlCrSiCN, AlTiSiCN, or AlTiCrSiCN.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Coating; (BB) Ionitrided layer(80-120um); (CC) Base material(SKD11,QT)