OUR CAPABILITY   
Electroplating

Our two electroplating bays provide for a comprehensive range of processes to support propeller and turbine engine overhaul, manufacturing and the repair of aeronautical components.

These are supported by a comprehensive cleaning line, including mechanical cleaners (grit blasters), vapour degreasers, electrocleaners and acid etches.

Air circulating ovens enable stress relieving and hydrogen de-embrittlement.

The main plating bay is a modern facility, built to meet demanding environmental standards.

Some specialised commercial processes are also carried out within the facility to meet individual customer and manufacturers requirements. These include passivation of stainless steel and silver plating of titanium.

 
Electroplating
 
  • Aluminium surface conversion
  • cadmium
  • chromium
  • copper
  • mag alloy surface conversion
  • nickel
  • nickel/cadmium diffusion
  • electroless nickel
  • silver
  • steel surface conversion coatings
  • salt spray testing
  • cleaning
  • Capability List

    Aluminium surface conversion coatings
    Sulphuric Acid AnodiseMIL-A-8625, AMS 2471, AMS 2472
    Chromic Acid AnodiseMIL-A-8625, AMS 2470 
    Tank Sizes 1200mm square and 2850mm deep.A range of colour dyes can be applied to small articles.
    Hard AnodiseMIL A-8625DEF 03-26
    Chromate Conversion CoatingsMIL-C-5541
    Anodise StripMIL STD 871
    Dichromate SealerMIL-A-8625
    Brush plating
    SpecificationsMIL Std 865
    Selectron and Dalic units are employed with a full range of electrolytes. The process is portable and is suitable for in-situ repairs such as spot corrosion treatment and protection, rebuilding of worn areas, pit-filling of hydraulic cylinders and other plated items.
    Cadmium
    SpecificationsDEF 03-19/2QQ-P-416MIL STD 870N99.400 (R70-6441)N99.401 (R70-6443)
    Tank Sizes: 1200mm square and 1050mm solution depthOne tank provides for bright specular deposits, while the other caters for high tensile steels (Low Hydrogen Embrittlement). Chromate conversion coatings can be applied to cadmium deposits.
    Chromium
    SpecificationsAMS-QQ-C-320, AMS 2406 MIL STD 1501
    Tank Sizes: 1200mm square and 2250mm solution depth 900mm square and 1050mm solution depth
    Chromium StripMIL STD 871
    Copper
    SpecificationsAMS 2418
    Tank Size 900mm square and 750mm solution depth
    Magnesium alloy surface conversion coatings
    SpecificationsMIL-M- 45202
    Tank Size 900mm square and 1000mm deep.
    Nickel
    Low Stress Sulphamate NickelAMS 2403, AMS 2423, AMS 2424, MIL STD 868
    Tank Size 1200mm square and 1050 mm solution depth
    Nickel/Cadmium diffusion
    SpecificationTO 2-1-111
    This process provides corrosion protection for steel parts in high temperatures (up to 482C).
    Electroless nickel
    SpecificationMIL-STD-26074, AMS 2404, AMS 2405
    Three types of solution are available to provide high or low phosphorus deposits which may be applied to most metal substrates including aluminium. Deposit hardness ranges from Rockwell C46 to C58. Post plate heat treatments can increase this to Rockwell C72.
    Silver
    SpecificationAMS 2410, AMS 2412
    Tank Size 900mm square and 750mm solution depth
    Steel surface conversion coatings
    PhosphateMIL DTL 16232 TYPE M, MIL DTL 16232 TYPE Z, AMS 2480, AMS 2481
    Tank Sizes 900mm square and 1000mm deep.The two processes are known as Parko GZ, which is zinc based, and Parkolubrite 2 which provides a heavier manganese based finish.
    Black OxideAMS 2485
    Tank Size 500mm square and 1000mm deep.
    Passivation of stainless steelAMS 2700
    Salt spray testing of coatings
    Salt spray testing of coatings IAW manufacturers specifications.
    Cleaning procedures
     Pratt & WhitneyRolls RoyceTSD 594
    Hot Vapour DegreasingSPOP 3OP 101
    Cold Petroleum Solvent DegreasingSPOP 255OP101
    High Pressure Water BlastingN/AN/A
    Soft Grit BlastingSPOP 8OP 104
    Wet Abrasive BlastingSPOP 9 & 16OP 104
    Dry Grit BlastingSPOP 732OP 104
    Glass Bead BlastingSPOP 17OP 104
    Cold Carbon CleaningSPOP 7OP 109
    Stripping Organic Coatings From Metallic ComponentsSPOP 260OP 137
    Rockhard Lacquer RemovalN/A72-32-00 Viper Only Removal Page 202 Para 4
    Four Step Alkaline Derusting With Inhibited Phosphoric AcidSPOP 211COP 111/ OP 121 /SP 114
    Three Step Alkaline Derusting Without Inhibited Phosphoric AcidSPOP 213BOP 121 / OP 114
    One Step Alkaline Corrosion Removal Quick SoakSPOP 18 
    Fuel Nozzle Support CleaningNZAP 6111.002-3.6WP 185.00 NZ9J52 only 
    Carbon Solvent and Pressure Flushing of Engine BearingsSPOP 14OP 112
    Degreasing by Aqueous CleaningSPOP 209OP 102

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