This is a method of putting Zink layer onto steel pieces. The idea is that they are protected from corrosion processes for a longer period. Schematically, the process of galvanic Zink- plating is the following: - treatment of pieces in a hydrochloric and sulphur acid solution, so that the rust is removed.
- skimming of pieces- the metal surface gets cleaner, and the conditions for a better adhesion with the Zink are more favourable
- treatment in a hydrochloric acid for about a minute- the pieces are now ready for Zink- plating.
- Zink- plating- the process takes place in a tub with dissolved Zink salts, where under the effect of electricity with specific markers, a layer of Zink is formed onto the piece with thickness of about 5-25 microns, depending on the requirements.
- passivation – a process where the piece is dipped for some time in a solution, then dried. This process makes up for the stronger endurance of the Zink to aggressive agents.
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