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The company Galvanovna Kopøivnice presents the following technologies: |
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- decorative chrome plating
- hot dip galvanizing – suspended parts
- hot dip galvanizing – bulk bath
- hard chrome plating
- phosphating and pickling
- copper plating
- grinding and polishing of pipes and bars before surface finish
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- decorative chrome plating::
metal plating using any anti-corrosion coating systems with surprising decorative
appearance and high corrosion resistance. Applied to the substrates of iron, steel
(except for stainless), copper alloys, zinc alloys and, with a certain Cu portion, aluminium alloys. Substrate preparation by grinding, brushing, polishing (all as agreed with the customer). DCr is a combination of multi-layer coating consisting of the following:
Cu coating of cyanide bath 5 - 8 µm ( pre-copper plating )
Cu coating of glossy acid bath 10 - 15 µm ( copper plating )
Ni coating of semi-gloss acid bath 10 - 15 µm ( semi-gloss nickel plating )
Ni coating of gloss acid bath 5 - 10 µm (gloss nickel plating)
Cr coating of gloss decorative bath 0.3 - 1 µm
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Other combinations of the coatings mentioned above may be supplied as required. Electrolytically deposited coatings NICKEL - CHROME and COPPER - NICKEL - CHROME pursuant to ÈSN EN 12540
Maximum dimensions of metal plated parts: 2000 x 1000 x 250 mm. .
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- hot dip galvanizing – suspended parts:
Applied to the steel and cast iron substrates. Galvanically deposited zinc coating in weak acid galvanizing baths.
no passivation (under KTL)
blue trivalent chromate passivation + clear coat seal
yellow tetravalent chromate passivation + clear coat seal
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Coating thickness up to 25 µm of zinc
Maximum dimensions of metal plated parts: 2000 x 1000 x 250 mm. |
- hot dip galvanizing – bulk bath:
Applied to the steel and cast iron substrates. Galvanically
deposited zinc coating in weak acid galvanizing baths
blue trivalent chromate passivation
yellow tetravalent chromate passivation
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Coating thickness up to 25 µm of zinc
Maximum weight of metal plated parts: 0.2 kg. Dimension of metal plated parts: 3 - 120 mm. Minimum technol. batch: 2 kg. |
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We apply abrasion resistant chromium coatings to new parts, renovate old parts, we also ensure mechanic machining. Steel substrate, including stainless steel.
Cr coating up to 1500 µm
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Maximum dimensions of metal plated parts: 1100 x 1000 x 350 mm. |
- phosphating and pickling
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zinc phosphate under paint or powder 2 - 6 g/m2
tensile phosphate 10 - 30 g/m2
Mn phosphate – run-in 10 - 30 g/m2
HCl pickling 1:1
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Maximum part dimensions: 1200 x 800 x 500 mm. |
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Protection from cementation upon heat treatmen
Cu coating up to 35 µm
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Moreover, we perform water and bath analyses, waste water and electrolyte disposal,
including cyanides; we design, produce and insulate attachments with BLASOPLAST, remove old coatings, perform grinding,
brush polishing.
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- grinding and polishing of pipes and bars before surface finish
We renovate old chrome coatings on automotive parts (old-timers), including removal of old coatings, grinding, polishing and chrome plating. |
We offer grinding and polishing of pipes, diameter from 16 mm to 60 mm, length from
200 mm to 3000 mm on a special grinding machine using grinding tools. As a result of this technologic process,
pipes are prepared for all types of galvanizing – gloss chrome, gloss nickel, gold titanium, etc. We are able to
provide such a surface finish too. Grinding of bars, diameter from 4 mm to 40 mm, length up to 500 mm.
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