Benefits
Better Wear Resistance.
Reduces Friction.
Prevents Fretting and Galling.
Improves Release Properties.
Allows Higher Speeds.
Lubrication Reduction.
Improves Release Properties.
Better Surface Finish.
Decorative Colours.
Does not Tarnish.
Suitable
Materials
Any Tool Steel.
HSS & Carbide.
Stainless Steel.
Titanium.
Aluminium.
Brass/Copper Alloys.
Chrome/Nickel Plated Metals.
Low
Treatment Temperature
No Distortion
No Loss of Hardness
Cost Effectiveness
Increases Tool Life.
Saves on Plant Downtime.
Re-coating after Re-polishing.
Re-coating after Re-grinding.
Quality
Approved
to ISO9001 - 2000.
Accurate Control of Coating.
Repeat Items Coated Identically.
Example Applications
Cutting Tools.
Forming Tools.
Knives & Blades.
Bearings & Slides.
Seals & Valves.
Aerospace.
Racing Car & Bike Components.
Food & Chemical Processing.
Paper & Plastic Processing.
Choice of Coating:
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D2
Forming rolls
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HSS
Gear Cutting Tools
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PVD
Coating Machine
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XRF
Coating Thickness Computer
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Hardness: 2500HV
Colour: Gold
Typical Uses: Tools / Plastic Moulds / Medical Implants / Electronics / Decoration
Hardness: 2000HV
Colour: Silver
Typical Uses: Tools for Non-ferrous Use / Forming Tools for Steel / Anti-Corrosion / High Temperature Use / Die-casting
Hardness: 3000HV
Colour: Blue/Black
Typical Use: High-Rate Tools / Interrupted Cutting / High Temperature Use / Decoration
gives you
the BEST
PVD Coating experience in
Great Britain
A high DC voltage applied to the items attracts the metal vapour which impinges with sufficient energy to adhere to the surface and build up to a dense coating. The coating is very thin, between 2 and 10 microns epending upon application so has negligible effect on dimensions.
The coating replicates the original surface finish. Areas can be masked off by mechanical shields where geometry allows.
PVD coating processes differ by the way in which the metal is evaporated. In the Arc process each source consists of a block of metal on which we strike an electric arc. The arc gives such intense heat that the surface of the metal block is vapourised.
The choice of metal e.g. Titanium or Chromium controls the vapour composition. Multiple sources or evaporators mounted in the chamber walls give all-over coverage and by choosing different metals for each evaporator, multi-layered and alloyed coatings can be made.
Arc evaporation gives the best Ionisation Rate of any PVD process which ensures excellent coating adhesion and structure. The throwing power is good so the most complex shapes can be coated.
It can accommodate hundreds of small parts or larger parts up to 1200mm long and 800mm across.
Good surface support for thin, hard coatings is always recommended so the quality and hardness of the item to be coated is important. Suitable surfaces include ground heat-treated or nitrided, machined, polished and plated. Other finishes can be coated after special pre-cleaning.
PVD coating is carried out at low temperature between 200°C and 500°C. The temperature is selected to suit the material being coated to retain the temper condition and prevent distortion.
