Industrial sector

Revaltec deals mostly with the industry’s professional sector, in various areas: aeronautics, general mechanic, petrochemicals, chemistry, food, metallurgy ...

Revaltec offers 2 coatings which are likely alternatives to traditional hard chromium-plating and electrolytic nickel-plating : Revasil (nickel silicon carbide) and Revalloy (nickel plating) guarantee greater toughness and provide insulation and protection against corrosion.

Revaltec has two workshops to satisfy customer orders: the main one is dedicated to surface treatments, and the second one to machining. The 1st shop consists of 2 work lines, one each for the Revasil and Revalloy processes. Each line has 15 aligned tanks in which the parts are prepared and treatments are applied. The mechanical workshop has 2 horizontal honing machines and 1 vertical honing machine.

International references

- Valeo : International motor-vehicle equipment manufacturer.
- Kalix : World’s first manufacturer of packaging machines for the filling and cartoning of tube-contained cosmetics and pharmaceutical products.
- Redex / Merobel : Design and manufacture of equipment and components.
- Euroflex : Manufacture of water- and gas-conveyance products.
- Samr : Specialist in spin coating of antifriction metals and the precision machining of guidance or sealing parts.
- Pirelli : Electrical wires, cables and connexions, and connecting material.

Strict compliance with standards

Revaltec is a factory at risk with a treatment authorisation.
All cleaning solutions, pickling baths and treatments are removed semi-annually by a specialised company, which disposes of all products (alkalis, acids and salts) separately.
During the treatment, the air above the solutions is drawn off and sent to a scrubbing column before being expelled outside. Furthermore, for the more corrosive baths, employees also wear a protective mask for added protection.
Employees are also outfitted with chemical-proof clothes.

Case study : Treatment of a 2- or 4-stroke cylinder

First, cylinders are degreased in a detergent solution; they are then cleaned and rinsed.
Where the cylinder is already nikasiled, it must be stripped of its original coating. This operation requires a concentrated nitric acid solution to dissolve the nickel.
Treatment is carried out at a constant temperature, in 2 tanks in which the solution is stirred by compressed air. Stirring is essential to suspend the silicon carbide particles.
Nickel must be added periodically. This operation is performed automatically by a metering pump. A slight amount of excess matter is added to allow for the cylinder’s machining.
A full treatment, including the preparation cycle, takes a long time (5 hours on average); the duration will vary depending on the desired thickness of the coating. This time does not include any precision-grinding procedure the part may require.