ServicesZinc Barrel Plating ServicesHeat Treating ServicesAnodizing ServicesDoerken Coating ServicesPast ProjectsZinc Plating of Steel
Fittings for a Hydraulic
Hose Application
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Zinc Plating of Steel Fittings for a Hydraulic Hose Application

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All-Metal Fittings
A customer from the automotive/agriculture industry approached Elm Plating Company to apply a protective corrosion-resistant coating to steel fittings that are used within hydraulic hoses in a variety of applications. The high-volume applications required a 0.07-0.19 coefficient-of-friction and had to also assure the ability of the component parts to achieve corrosion performance after crimping the parts onto the hose. The solution we derived from several DOE trials was to apply a 0.0002”-0.0004” zinc trivalent clear chromate with an integrated lubricant in an improved barrel rotation cycle. The process proved capable and repeatable in regards to the COF, corrosion resistance and plating thickness requirements of our customer’s supplied specifications and testing standards. After proving the process out on several different families of fittings, our customer approved us as their primary plating source for all of their applications.

For more information on this project or other examples of our high quality workmanship, please contact Elm Plating.

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Zinc Plating Project Highlights

 
Project Name Steel Fittings
Product Description These zinc plated fittings are used within hydraulic hose applications.
Capabilities Applied/Processes Zinc Plating
  • Zinc Tri Clear Seal
Packaging
Equipment Used to Plate Part Automated Barrel Zinc Electrodeposit Line
Overall Part Dimensions
Coating Thickness: .0002"-.0004" mils
Length: .795"
Hex Width: .688"
Tightest Tolerances COF 0.07-0.19
Material Used Steel
Material Finish Trivalent Clear Chromate + Integrated Lubricant Seal
Resistances Corrosion
In process testing performed Salt-Spray Testing
  • Tested for 96 hours to white corrosion
  • Tested for 360 hours to red rust
Industry for Use Automotive/Agriculture
Volume High Volume, Multi-Part
Standards Met Customer supplied specifications
ASTM B117-09-Salt Spray Testing
Delivery Location Ohio

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