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MECHANICAL SURFACE TREATMENTS FOR COMPONENTS In addition to DLC-type coatings, the HEF group is able to offer a whole range of very hard coatings. These CERTESS™ NITRO coatings ...
HEF GROUPE
... Characteristics: - Excellent reproducibility of electrical properties - High purity of coatings - Control of thickness and surface finish - Resistance to chemical aggression (depending on filler material) - ...
HEF GROUPE
... ELECTROMAGNETIC SHIELDING PROCEM™ is a conductive multilayer metal coating designed for the electromagnetic shielding of polymers and composite materials. The production of electrically conductive coatings ...
HEF GROUPE
... Valves stems • Hinge pins • Connectors rings • Tie rods • Bearings • Special screws and bolts • Automotive locksmithing • Brake linings • Food mixers
HEF GROUPE
Organic coatings using thermal hardened or thermo-stable polymers (PTFE, POLYIMIDE). Characteristics (depending on type of coating): • Low friction coefficient • Seizure resistant • Anti-adherent • ...
HEF GROUPE
Organometallic coatings that are resistant to extreme conditions of corrosion. Characteristics: • Excellent protection against corrosion (can exceed 1,000 hours in salt spray test) • Control of frictions • No hydrogen ...
HEF GROUPE
... aeronautics • Hot gas recovery joints on aircraft engines • Hydraulic joints • Stainless steel nuts and bolts for nuclear industry • Various parts of nuclear valves • Hinge pins for submarine doors • Steam turbine ...
HEF GROUPE
Surface treatment for the prevention of wear and seizure of copper alloy parts. This treatment is obtained by tin base electrolytic plating followed by diffusion heat treatment at 400°C (752°F). Characteristics: • Increased surface ...
HEF GROUPE
Nickel coating plated on aluminium or aluminium-alloy parts to provide optimal electrical conductibility. Characteristics: • Globular structure offering numerous contact areas between connected surfaces (contact resistance ...
HEF GROUPE
... lubricant coatings are a desirable alternative to fluid lubricants for minimizing friction and preventing seizing and galling, especially in high or low-temperature environments where fluids lubricants may freeze or ...
... machinability. Cast iron box is often used in light load, low speed, low precision transmission system, including some agricultural machinery, construction machinery and so on. The disadvantage of cast iron box is that ...
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