Anti-corrosion protection of steel parts. Our rectifiers deliver steady, reliable output on high-volume lines.
Micronics Systems designs rectifiers suited to this process: controlled voltage, reliable current and sustained performance, even on the most demanding lines.
Zinc plating is an electrolytic deposit of zinc intended to protect steel parts against corrosion. The principle is neat: the zinc acts as a sacrificial coating. Being less noble than steel, it corrodes first and so protects the part, even if the coating is scratched.
The deposit is almost always followed by passivation (commonly called chromating), which greatly improves corrosion resistance and gives the final colour: blue, iridescent yellow, black… Depending on the parts, the treatment is carried out in a barrel (small bulk parts, tumbled in a drum) or on racks (parts hung one by one).
It is a high-volume process par excellence: screws, bolts, automotive parts, hardware. Volumes are huge and consistency of output is paramount.
Degreasing and pickling of the steel for a perfectly clean surface.
Under direct current, the zinc deposits evenly over the whole part.
A finishing layer improves corrosion resistance and fixes the colour.
Checking thickness and appearance before dispatch.
There is no electrolytic deposit at all without direct current: the comparison is about the quality of that current, between a supply that fluctuates and a regulated rectifier.
In zinc plating, the challenge is not high current but consistency across large volumes. On a line running continuously, every part must receive the same zinc thickness as the one before: that is the condition for reliable, even corrosion protection.
Micronics rectifiers deliver that constant, repeatable output day after day. This stability ensures consistent quality, a controlled production rate and a minimal scrap rate — essential criteria on high-volume lines.
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