Treatment catalog 2023
20Pages

| Surface Materials Engineering

Techniques Surfaces, jobbing subsidiary of HEF Group, provides assistance and guidance to its customers in more than sixty sites across more than twenty countries: • Germany • Brazil • Canada • China • Spain • France • Hungary • India • Italy • Japan • Malaysia • Mexico • Poland • Czech Republic • United Kingdom • Switzerland • Th

Liquid ionic nitriding 4/5 CLINTM 5 Coatings using PVD/PACVD technologies 6/10 Certess® Carbon 7 Certess® Nitro 7 Certess® Elec 7 Certess® Procem 8 Certess® Look 8 Certess® Optal 8 Certess® Eject 9 Certess® Life 9 Corralu® V 10 Certess® Blast 10 Femtosecond laser 11/12 Femtosecond laser 12 Functionalised Powders 13/14 Depton® 14 RomaxTM 14 Other Technologies 15/19 Phosphating 16 SDA® GraphlubTM 16 TeglissTM 16 DOTTM 16 Stanal® 400 HEF Patent 17 Delsun® HEF Patent 17 Corralu® B / Surtec 650 17 Nicalec Pechiney Licence 17 SULF BT® HEF Patent 18 MoapTM HEF Patent 18 Plasma Thermal spraying 18...

The HEF group, with more than 60 years of development in thermochemical treatments, is today the world leader in the field of ionic liquid nitrocarburizing. The HEF group’s nitrocarburizing treatments are patented and marketed under the names SURSULF®, ARCOR®, TENIFER®, TUFFTRIDE®, MELONITE®, NUTRIDE® and QPQ®. These trademarks are grouped under the name CLIN™: "Controlled Liquid Ionic Nitrocarburizing". Ionic liquid nitriding They are provided by the HEF group via its international TECHNIQUES SURFACES® jobbing network or by integrating them on the customer site, depending on the project....

The various liquid ionic nitriding treatments of the HEF group are grouped under the name CLIN™ meaning "Controlled Liquid Ionic Nitrocarburizing". Trade name Treatment parameters: CLINTM technologies are mainly applied to ferrous alloys (from low-carbon steel to high-alloy steels and cast irons), and are carried out between 500°C and 630°C for periods of 30 to 240 minutes. Unlike electrolytic coatings, there is no risk of hydrogen embrittlement with CLINTM technologies. Characteristics: They make it possible to combine the corrosion, wear, and fatigue resistance qualities of cast irons and...

PVD/PACVD Technology coatings 6 For over 30 years, HEF has been developing and innovating in PVD - PACVD technologies. This technology is used in all types of industries: mobility, construction, medical, defence & space, low-carbon energy, etc. Physical vapour deposition and plasma-assisted chemical vapour deposition (PVD and PACVD) are environmentally friendly surface treatment technologies, allowing thin layer deposition under vacuum. They enable coatings to be obtained with thicknesses from a few nanometres to a few tens of microns and hardness from 1000 to 5000HV. Thanks to its mastery...

CERTESS® CARBON SURFACE TREATMENT FOR TRIBOLOGICAL USE CARBON layers correspond to DLC (Diamond Like Carbon) coatings for tribological use. These coatings usually consist of several sub-layers of different materials: Cr, CrN, WC, WCC, combined with a top layer of hydrogenated (a-C:H) or non-hydrogenated (ta-C) amorphous carbon. Characteristics: • Hardness from 500 to 6000 HV • Excellent friction properties • No hydrogen embrittlement • Respect of dimensions and roughness Materials suitable for treatment: Steels and cast irons - Carbides • Dense sintered materials • Inconel alloys •...

CERTESS® PROCEM® SURFACE TREATMENT FOR ELECTROMAGNETIC SHIELDING PROCEM® layers are conductive multilayer metallic coatings designed for the electromagnetic shielding of polymers and composite materials. These PVD treatments make it possible to reconcile these various requirements while providing other advantages linked to the implementation process: the dimensional accuracy, the quality of any sparing, the negligible impact on the weight of the objects. Characteristics: • Discharge of electrostatic charges • EMI shielding • Multifunctionality (resistance to chemical aggression, friction or...

CERTESS® EJECT SURFACE TREATMENT FOR MECHANICAL USE OF MOULDS EJECT layers are coatings developed for plastic and aluminium shaping tools to ensure very low wear in the injection area and easy unmoulding for many materials. The aim is to increase tool life, improve the quality of the parts produced, reduce lubrication, reduce tool maintenance and encourage the reuse of tools. Characteristics: • Hardness from 2000 to 6000 HV • Resistance to abrasive and adhesive wear • Chemically inert • Thermal stability up to 800°C • Resistance to oxidation Materials suitable for treatment: • Steels and...

VACUUM DEPOSITION FOR CORROSION PROTECTION Deposition of a pure aluminium layer of 10 to 50 µm. Characteristics: • Corrosion protection • Electrical continuity Notes: Dimensions from one centimetre to 2 metres. Beyond that, please consult us. Additional treatment possible (SiOx, chemical conversion, Surtec 650, Corralu, varnish, chetylic alcohol). Materials suitable for treatment: Steels • Stainless steels • Aluminium alloys • Refractory alloys • Titanium • Any metal compatible with vacuum deposits • Possible application on plastics, glass and ceramics Examples of use: • Fighter aircraft...

The femtosecond laser, a breakthrough technology of the future implemented by the HEF group, is an ultra-short pulse laser: 10 -15 seconds. Femtosecond laser In this very short time, the photon only travels a few tens of micrometres, less than the thickness of a hair. The femtosecond laser is unique in that it can deliver very high power in a short period of time for a fair amount of energy. This unique property allows the material to be sublimated while controlling the thermal effects, for all materials, from the hardest to the most fragile. HEF can thus modify the surface of materials in...