Hard chrome plating
CRS's hard chrome plating department is equipped with:
- 6 galvanising plants with a total depth of 6.500 mm and a maximum diameter of 1.500 mm.
- 1 catalysed chrome bath, which increases hardness, resistance to corrosion and lustre.
A total of 61 cubic metres of chrome in total, which allows:
- the plating of rolls up to 6.000 mm long
- the plating of rolls up to 1.200 mm in diameter
- sending 50,000 amps into just one piece thanks to an installed power of 1500 Kw.
The hard chrome plating process consists in the electrolytic deposit on the surfaces of the metal to be treated, a layer of chrome, carried out via baths of chromic anhydride (CrO3), sulphuric acid (H2SO4) and water in determined proportions.
Thick chrome plating is a galvanising treatment with a broad and consolidated field of application, which creates chrome deposits with particular physical-mechanical properties that bring benefits for metal products, such as:
- increased resistance to wear and tear (under lubrification, wear due to compression, wear due to the action of abrasive substances)
- increased resistance to corrosion
- increased hardness
- restoration of the original thickness