Coating method and coating layer of brake hose fitting

Abstract

Disclosed herein is a method of coating a brake hose fitting. The method includes plating a brake hose fitting with a zinc-nickel (Zn—Ni) alloy including about 6˜12 wt % of nickel (Ni). The method further includes post-treating the plated brake hose fitting with a silicon (Si) solution.

What is claimed is: 
     
         1 . A method of coating a brake hose fitting, comprising:
 plating a brake hose fitting with a zinc-nickel (Zn—Ni) alloy including about 6˜12 wt % of nickel (Ni); and   post-treating the plated brake hose fitting with a silicon (Si) solution.   
     
     
         2 . The method of  claim 1 , further comprising:
 chromating the plated brake hose fitting.   
     
     
         3 . The method of  claim 1 , wherein, in the post-treating the plated brake hose fitting, the plated brake hose fitting is dipped into the silicon (Si) solution. 
     
     
         4 . The method of  claim 1 , wherein the silicon (Si) solution is a solution including about 10˜15 wt % of Si. 
     
     
         5 . A coating layer of a braking hose fitting, comprising:
 a plated layer including zinc (Zn) and about 6˜12 wt % of nickel (Ni);   a corrosion-resistant layer formed on the plated layer by chromating the plated layer; and   a finish layer formed on the corrosion resistance layer by coating the corrosion resistance layer with silicon (Si).