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            1. 歡迎來到臼井管路系統(合肥)有限公司!

              表面處理工藝

              Surface Treatment

              On automotive parts, usually rust preventive surface treatment is applied. Zinc based plating or nickel based plating is often used since they have very reliable performance among various treatment methods. Inside and/or outside surface(s) of USUI made tubes are treated, according to the applications, by proprietary zinc based or nickel based plating.

              Standard tube outside surface treatment 
              (Hexavalent chromate free)

              Zn+Trivalent Chromate

              • Applications

              • General purpose

              Zn+Trivalent Chromate

              Zn/Ni+Trivalent Chromate

              • Features

              • Heat resistant & corrosion resistant

              • Applications

              • For Tubing in engine room

              Zn/Ni+Trivalent Chromate

              HI-TIN-Z

              • Features

              • Heat resistant & high corrosion resistant 
                (Salt damage countermeasure)

              • Applications

              • For Tubing in engine room 
                For Power steering tubing

              HI-TIN-Z?(Zn+Sn/Zn+Zn+Trivalent Chromate)

              ZINIC

              • Features

              • Heat resistant & high corrosion resistant 
                (Salt damage countermeasure)

              • Applications

              • For Tubing in engine room 
                For Power steering tubing

              ZINIC?(Ni+Zn/Ni+Trivalent Chromate)

              NEW SUPER COAT

              • Features

              • High corrosion resistant

              • Applications

              • For Brake tubing 
                For Fuel tubing 
                For Tubes both ends press forming required

              NEW SUPER COAT(Zn+Trivalent Chromate+Primer+PVF)

              PC TUBE

              • Features

              • High corrosion resistant & anti-chipping resistant

              • Applications

              • For Brake tubing 
                For Fuel tubing 
                For Tubes both ends press forming required

              PC TUBE(Zn+Trivalent Chromate+Primer+PVF+PP)

              ULLT

              • Features

              • High corrosion resistant & anti-chipping resistant

              • Applications

              • For Brake tubing 
                For Fuel tubing 
                For Tubes both ends press forming required

              ULLT?(Zn+Trivalent Chromate+Primer+PA+PP)

              Tube inside surface treatment

              Only for Single Walled Steel Tubing(Hycolin)

              Nickel Plating

              • Features

              • Prevention of copper elution. To be used with Ethanol blended gasoline and sour gasoline

              • Applications

              • For Fuel tubing

              HINIC (Double Layer Nickel)

              • Features

              • Improved corrosion resistant. To be used with Ethanol blended gasoline and sour gasoline

              • Applications

              • For Fuel, air, and water tubing


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