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The Alternative Coating Method For Zinc Phosphate Coating before Cold Deformation of High Carbon Steel Wires



Author(s)

Elvan Araz

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DOI:10.17265/2161-6213/2019.1-2.006

Guney Celik, R&D Center, Adana, Turkey

The metal surfaces are passed through the pretreatment steps before being subjected to the coating process. One of these steps is zinc phosphate coating. The present process has many disadvantages such as the high number of digits, the difficult and high cost of disposal of the formed sludge, and not being an environmentally friendly approach. In this study, which we planned as an alternative coating for zinc phosphate coating, the effects on the wire were studied by working with stearates in order to be sensitive to the environment. Dipping method was used to compare different pH, time, temperature and concentrations of the obtained data with the zinc phosphate coating. With the alternative coating, the coating time can be reduced. Coating process; it can be completed in 3 stages by alternative coating method while it is finished in 7 steps in zinc phosphate process with surface cleaning. In addition, the corrosion resistance with alternative coating increased and cost decreased by 70-80%. Thus, it has been understood that the alternative coating is a coating type superior to zinc phosphate coating.

Corrosion, coating, steel, zinc phosphate.