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Surface Treatment for Paper Cup Machines: Standard vs. Cutting Corners I

April 22, 2026

Surface Treatment for Paper Cup Machines: Standard vs. Cutting Corners   

 

1. Blackening

 
 
Standard Process
 
Uniform black oxide film formed via chemical oxidation, sealed with oil for anti-rust, matte finish. Used for internal shafts and gears.
 
 

Common Tricks

 
 

2. Electroplating

 
 
 
Standard Process
 
Uniform coating (Zn/Ni/Cr) via electrolysis, proper pre-treatment & passivation, good anti-rust & wear resistance.
 
 

Common Tricks

 
To be continued ……