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All the surface coatings and treatments
Surface coatings and treatments allow us to modify mechanical, chemical, thermal, electric or aesthetic properties of fastenings to improve function capacity. They affect metals as much as other materials.
Corrosion Protection
Corrosion is a well-known issue: iron and steel rust, copper turns green and zinc turns white. These various forms of oxidation deteriorate the metal which no longer fulfils its function correctly. Maintenance can therefore be expensive and sometimes inefficient. Regarding mechanical fastenings, corrosion entails risks of jamming and the loss of mechanical liaison: reducing resistance, increasing slackening, loosening and the appearance of cracks. Anticorrosion treatments represent a large section of surface coatings and the numerous standards which cover protection against corrosion, notably the NF E25-032 standard, is used to calculate, foresee and anticipate the capacity of a metal to conserve its functional aptitude in corrosive environments.
Anti-wear protection
Following anticorrosion, anti-wear protection is the second most important surface treatment. Wear is mainly the result of erosion to which some parts of an object in contact with another object in movement can be subject. It concerns numerous fastenings for which certain surface treatments or coatings manage to reduce abrasion connected to rubbing and can therefore prolong use.
Common surface coatings and treatments
| category | treatment | ROHS conformity |
|---|---|---|
| electrochemical | demagnetization | |
| electro-polishing | ||
| thermo chemical | silver plating | |
| aluminisation | ||
| alodining or alodizing | ||
| anodizing (anodic oxidation) | ||
| sulphuric anodizing | ||
| chromic anodizing | ||
| hard anodizing | ||
| cadmium plating | ||
| cataphoresis | ||
| decorative chromium plating | ||
| hard chromium plating | ||
| chromate conversion coating (on zinc and cadmium) | ||
| copper plating | ||
| gilding | ||
| Dacromet® coating (zinc-aluminium) | ||
| tin plating | ||
| galvanisation (zinc) | ||
| nickel plating | ||
| nickel-chromium | ||
| black (black oxidation on stainless steel) | ||
| passivation | ||
| passivation + cetyl alcohol | ||
| phosphatation (phosphoric acid) | ||
| Stanal® coating (tin) | ||
| zinc coating | ||
| zinc-nickel | ||
| coating | lubrification ( MoS2 ) | |
| polyamide nylon Eslok Rilsan | ||
| varnishing (varnish) |
Other surface treatments
| category | treatment | ROHS conformity |
|---|---|---|
| mechanical | burnishing | |
| deburring | ||
| roller-burnishing | ||
| shot blasting (lead/iron) | ||
| knurling | ||
| polishing | ||
| rectification | ||
| abrasive (sand) blasting | ||
| satin finishing | ||
| superfinishing | ||
| thermochemical | aluminium and chromium | |
| anti-rust ( Loctite 7500 ) | ||
| boriding ( boron ) | ||
| bronzing | ||
| carbonitriding ( carbon + azote) | ||
| carburizing ( carbon ) + sulphuration ( sulphur ) | ||
| chromaluminizing | ||
| diffusion hardening ( chromium ) | ||
| cobalt-chromium-tungsten-boron | ||
| cyaniding | ||
| Delsun® | ||
| Forez® (tin copper) | ||
| Keronite® | ||
| manganisation ( manganese ) | ||
| magnadize | ||
| metalloids, carbon, azote, sulphur, boron | ||
| molybdenum | ||
| nickel-chromium-boron | ||
| nitriding ( azote ) | ||
| ionic nitriding | ||
| oxidation | ||
| oxidizing + oiling | ||
| Parkerizing ( zinc phosphating ) | ||
| rhodium plating | ||
| Sulficad | ||
| Sulfinuz | ||
| sulfuration ( sulphur ) | ||
| Sursulf ( sulpur nitriding ) | ||
| Tenifer® ( ferritic nitrocarburizing ) | ||
| Tifran | ||
| Zinal® | ||
| coating | alumine ceramic | |
| metallic carbide ceramic | ||
| polyamide ceramic | ||
| zirconium ceramic | ||
| oiling | ||
| dry lubrification | ||
| PTFE Teflon® | ||
| thermosetting polymer acetyl resin | ||
| fluorothermoplastics |
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- Further information
- Contact us by telephone : +33 (0)1 30 59 74 73
- Contact us by e-mail web@satinox.eu
- Contact us by telephone : +33 (0)1 30 59 74 73
- Contact us by e-mail web@satinox.eu
