Metallichrom
"Metallichrom" should not be confused with normal hard chromium. Metallichrom, similar to hard chromium plating (usually applied in thickness of 12-500 microns), is used entirely for its special properties described below.
· A hard, abrasion resistant deposit.
· Very low coefficient of friction.
· 'Non-stick' quality.
· Metallichrom can provide excellent corrosion resistance in many suitable applications.
· Metallichrom deposited for engineering purposes shows a degree of adhesion such that it is impossible to detach the deposit from the basis material. Failure will take place in the weaker of the two materials.
· Metallichrom can be ground and/or polished to mirror like finish.
· Working temperature up to 650 degrees Celsius.
· Rebuilding worn or over machined parts.
Life Extension
The wear resistant Metallichrom is used in hydraulic equipment. Rams, pistons, presses, earth-moving equipment, forklift truck and mining equipment. Metallichrom prolongs life of components subjected to abrasive wear.
The 'non-stick' property is also utilised in the moulding industry where chromium deposited mould results in easy release of plastic and rubber components.
Components associated with movement draw great benefit from the low coefficient of friction. Metallichrom is thus used on piston rings, bearing journals, sliding components, crankshafts, etc. and in the pressing and drawing of metals.
Rebuilding worn or over machined components
Components can be costly to manufacture or replace. By using Metallichrom to salvage them a new lease of life is obtained, sometimes a better than new condition is attained.
Metallichrom Process
Metallichrom is a specialised hard chromium coating that has been developed to offer to the end user a greater anti-corrosion wear characteristic over and above conventional chrome. The result is a harder, brighter and smoother deposit. The deposit exhibits a microcracked structure, typically 400 random cracks per linear centimetre. This has the effect of diluting the galvanic action, thereby reducing the rate of corrosion substantially.
High hardness deposits of between 1050-1150 H.V. are achievable. This property combined with its low co-efficient of friction offers greater resistance to wear over the more typical conventional chromium deposits.
The deposit itself forms a tenacious oxide at the surface undetectable to the human eye. This in itself causes the deposit to act chemically passive as in noble metals.
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