Molten salt bath electrolytic conversion of the surface of the base material to create an iron sulphide layer to improve resistance to seizure and to strengthen adherence of lubricating films. The layer has excellent self-lubricating properties.
Treatment parameters :
SULF BT is used at a temperature of 190 ± 5°C (374 ± 40°F).
Treatment is possible on heat-treated steels with low tempering temperature, especially case hardened steels.
SULF BT is not suitable for steels with a chromium content greater than 12%.
Applications examples :
SURFACE HARDENED AND CASE HARDENED GEARS, CAMSHAFTS, ENGINE LININGS, BALL JOINTS, PUSHRODS, DIFFERENTIAL SATELLITES, DIFFERENTIAL SPIDERS, UNIVERSAL JOINTS, SHAFTS AND JOURNALS, GEARBOX FORKS, GEARBOX SPACER RINGS, STEERING SCREW, RACKS, PNEUMATIC HAMMER PISTONS, CONSTANT PROFILE MILLS AND SAWMILLS, STOP WASHERS FOR GEARBOXES, STAMPING TOOLS, CUTTING TOOLS, etc.