I-Spray provides complete Turnkey Services for the repair and refurbishing of all rotating equipment and auxiliaries relating to the Automotive, Marine, Onshore/Offshore, Petrochemical, Mining, Textile, Printing, Pulp & Paper and other industrial sectors.
Highlights
Key Benefits :
- Hard Coating
- Low Friction
- Excellent Wear Resistance
- Good Corrosion Resistance “Cold Process”
- Non-Fretting / Anti-Galling
- Superfinishing to Mirror Finishes
- Thick Grinding and Polishing Service
- Thin-wall Technology or Heavy Build-Up 0.25 – 1,000 Micron Thick
DOWNLOAD BROCHURES
Hard Chrome plating is an electrolytic method of depositing Chrome for engineering applications, from a Chromic acid solution. Deposits can be applied from .25 – 1,000 microns thickness for a wide range of applications. The thinner deposits being used to substantially increase the life of components in wear applications or corrosive environments, and the thicker deposits being used for salvage and repair of worn, damaged or mis-machined components.
Hard Chrome is classed as a “COLD” process, the operating temperature of 50 – 60°C ensures no detrimental effects to the physical or mechanical properties of the base materials. Chrome Plating can be used over wide temperature range from -57°C to 427°C.
THE PROPERTIES
HIGH HARDNESS – electro-deposited Chrome is extremely hard, with typical values of 850 – 1050 HV (63 – 70 HRC), hence the term “Hard” Chrome. This makes it an excellent coating for wear resistant and abrasion resistant applications such as Moulds and Dies, Punches, Bearing and Seal surfaces, and sliding components.
LOW COEFFICIENT OF FRICTION – Hard Chrome has a very low coefficient of friction, approx. one half that of Steel. The coefficient against Steel of 0.16 lubricated (0.21 dry), makes it ideally suited for such applications as Bearing and Seal surfaces, and machinery components.
WEAR RESISTANCE – The high hardness and low frictional properties of Hard Chrome provide it with extremely good resistance to abrasive and erosive wear, extending the life of components such as Moulds, Dies and Punches etc, up to ten times in most cases.
CORROSION RESISTANCE – Hard Chrome has an extremely high resistance to atmospheric oxidation, and a good resistance to most oxidising and reducing agents (with the exception to Chlorides and other Halides), hence its wide-spread use in the Food and Chemical Industries.
APPLICATIONS –
Hydraulic and Pneumatic Piston Rods and Cylinders • Plastic and Rubber Rolls, Moulds, Dies, Screws, etc.
Automotive and Mechanical components • Press Tools and Punches
Print Cylinders and Plates • Food Machinery
Valves, Gates and Bodies • Mining Equipment
Timber and Paper Processing Equipment • Pump Shafts and Rotors
Textile Components