METHOD OF COATING ON A BASIC MATERIAL FOR DIE

摘要

PURPOSE: A method for coating a base material for die is provided to increase the adhesion of a base material and a coating layer by removing a compound layer of the base material surface generated through plasma nitriding process through ion gun etching. CONSTITUTION: A method for coating a base material for die comprises the steps of: (S210) plasma-nitriding the surface of base material to form a diffusion layer from the surface of the base material to the inside thereof; (S220) performing the ion gun etching and removing a compound layer which inevitably occurs at the upper part of the diffusion layer is removed by plasma nitriding; and (S230) coating the surface of the diffusion layer from which a compound layer is removed with a predetermined material.