Anticorrosion treatments

Zinc - Nickel anti-corrosion electrolytic treatment

Zinc - nickel treatment consists of a co-deposit of zinc and nickel by eletrolytic way in an alkaline medium without cyanide.

mithieux-traitement-anticorrosion

This process is suitable for coating parts in which the operating environment is "severe", offering higher levels of resistance to corrosion (> 1000 hours of resistance to salt spray) and abrasion. The nickel content of the coating is 12 to 15% by mass.

Equipment

  • Two automatic barrel lines for medium and large series.
  • An automatic line by clipping for medium and large series.

Operation of our production lines 7/7 and 24/24.

Applications

Adapted for extreme conditions, with a search for performance, optimization of weight.

Automotive, rail transport, cycling, mechanical engineering, machine tools.

Specifications

  • Excellent corrosion resistance: -> 1000 h RR at BS test -> 63 cycles ECC1 - ...
  • Compatible with aluminum and its alloys (low potential difference)
  • Abrasion resistance due to the very high surface hardness obtained (400-450 HV)
  • Surface condition suitable for the adhesion of rubbers
  • Complies with the requirements of the Automotive, Electrical / Electronic, Transport, Mechanical Engineering, Environment, BTP, Furniture Industry

Possible finishes

  • Gray and black passivations without Cr6 compliant ELV / RoHS
  • Organo-mineral finishes (top coat) to meet the requirements of the Automotive Industry:
    • Lubricated
    • Reinforced and lubricated

Application carried out on an automated rework stand

Additional services

  • Degassing
  • Packaging
  • Transportation
  • Possibility of carrying out tests:
    • Salt spray according to NF A 05-109 / D17 1058 standards
    • Cr6 presence test according to ISO 3613
    • Thickness measurements by X-ray fluorescence
    • Adhesion tests
    • ...