Method for treating blade of hair clipper by ion irradiation

Abstract

The present invention relates to a method for treating a surface of blade of a hair clipper, in which a nitrogen ion beam is irradiated to an edge of the blade at a predetermined angle with respect to the normal of the blade surface, to prevent the blade from becoming blunt, to remove undesirable adsorbents from the blade surface and to reduce surface roughness of the blade using sputtering effect due to the collision of nitrogen ions to the blade, and to form hard Cr—N and Fe—N particulates on an edge as well as on a surface of the blade. The method is advantageous in that surface-frictional coefficient of the blade is reduced, thereby improving durability and life of the blade.

What is claimed is:  
     
         1 . A method for treating a surface of blade of a hair clipper, comprising: 
 irradiating ions at an angle of 30 to 60° to the blade made of stainless steel to form nitrides on the blade, wherein the angle depends on a shape of the blade.    
     
     
         2 . The method according to  claim 1 , wherein the stainless steel is selected from the group consisting of SUS440A, SUS440B, SUS431, SUS420, and SUS304, which traditionally used as a material of a blade for hair clipper.  
     
     
         3 . The method according to  claim 1 , wherein the ions include only nitrogen ions, or nitrogen ions and other ions containing carbon.  
     
     
         4 . The method according to any one of  claims 1  to  3 , wherein the energy range of ions is 50 to 300 keV.  
     
     
         5 . The method as set forth in any one of  claims 1  to  3 , wherein the dosage of ions is 5×10 16  to 5×10 17  ions/cm 2 .