Zinc plating - KTL, a.s.
What is zinc electroplating and how does it work
Zinc plating, or Zn/Fe plating, (or possibly Zn/Ni), belongs between standard, traditional surface treatments of metals, which can be used both as basic and final metal surface treatment.
Simply put, galvanizing is depositing metal onto metal. This is an electrolytic process, during which a layer of zinc is deposited onto electrically conductive materials, mostly steel parts (a cathode), from a simultaneously dissolving zinc anode. This creates not only an anticorrosion layer, but also a pleasantly looking finish.
Advantages of zinc electroplating
● Suitable above all for surface treatment of steel parts, connecting elements, castings or forged products,
● Fast application,
● Economically profitable,
● Broad and highly variable application.
Zinc electroplating is applicable for
● Automotive industry,
● Electronic engineering industry,
● Mechanical engineering industry,
● Building industry,
● Consumer goods industry.
Key features of zinc electroplating
Electroplating features high quality, excellent resistance and outstanding anticorrosive properties. Thanks to them it is advisable both as a basic and final surface treatment of metals. Zinc galvanizing can reach excellent results when combined with cataphoretic painting, absolutely superior anti-corrosion protection can be reached by adding powder painting to this combination. Highly aesthetic coatings can be achieved this way.
Technological procedure of metal surface treatment by Zn/Fe zinc plating or Zn/Ni electroplating
Chemical degreasing – two-step flow rinsing – pickling I – pickling II - two-step flow rinsing – electrochemical degreasing - two-step flow rinsing – decapping – one-step flow rinsing - zinc galvanizing or Zn/Ni electroplating - two-step flow rinsing – clearing up – drinking water rinsing - chromic acid rinse - one-step flow rinsing - one-step flow rinsing – sealing of chromates – drying
Technical parameters of zinc electroplating
|Maximum dimensions of parts:||400 x 650 x 1100 (w x h x l)|
|Maximum product weight:||50 kg|
|Line performance per hour:||20 m2 per hour|
|Standard coating thickness:||8 – 12 micrometers|
Rack zinc plating only.
Zinc galvanizing surface treatment can be applied to any electrically conductive objects, even for large-sized products. We perform both bulk (drum) and rack zinc plating.
If required, electrolytically plated parts can be passivated (so-called chromated) and in case of need subsequently sealed by silicate paint. This enhances anti-corrosion protection of galvanized parts.
We use electroplating technology without Cr6+ in Lakum-KTL, a.s., in Lakum-Galma, a.s. and in Massag