CRAYOGENIC TREATMENT
- Increases abrasive and wear resistance
- Requires only one permanent treatment
- Creates denser molecular structure. The result is the
larger contact surface area that reduces friction heat and wear.
- Changes the equipments entire structure, not just the surface.
Subsequent re finishing operations or regrinds do not affect
permanent improvements.
- Eliminates thermal shock through a dry computer controlled process.
- Transforms all soft retained austenite to hard martensite.
- Forms micro fine carbide fillers to enhance large carbide structures
- Increase durability or wear life.
- Decrease residual stress in tool steel.
- Decrease brittleness.
- Increase tensile strength, toughness and stability coupled with
release of internal stresses.
LASER WELDING
Laser welding is used as kind low heat build up welding.
- Prevention of undercut.
- Minimization of tensions.
- Reduction of possible cracks.
- Welding of nitrided chromed or hardened surfaces.
- Welding of cast iron.
- Production of thin layer.
ADVANTAGES
- Very precise heat input.
- Low heat load
- -Low distortion
- - Small heat affected zone.
- - Without fusion penetration.
- Contact less
- - Working in deep cavities with high depth and low Width.
- - Hardly wear.
ADVANTAGES OF PLASMA NITRIDING
Plasma ion-nitriding is a nitriding process which allows
to obtain a wide range of different kinds and compositions of case
in accordance to the characteristics required for one precise
application.
For example.
- Improve abrasive coefficient.
- Improver wear resistance.
- Improve fatigue resistance ( 20-40%)
- Resistance to thermal shock.
- Improve corrosion resistance.
- Improve hot working tools life span.
Possibilities of partial / selective part nitriding using only
metallic screen / masking
Materials to be nitrided. :-
- Tools steels.
- High speed steels.
- Stainless steels.
- Carbon construction steel.
- Castings.
- Alloyed / non-alloyed carbon steel.
APPLICATION RANGE:
- Tools, dies moulds.
- Aeronautic parts / components.
- Transmission parts, gears, pinions, gear toothed bar.
- machine tools components, raits, slides cams, mandrels.
- automotive parts, camshaft, crankshaft, pinion & gear
of gear box, valve seats, piston, etc.
UNITARY TO PRODUCTION LOT TREATMENT:
- mechanical / construction parts.
- aeronautic parts
- automotive parts
- nuclear
- foundry and down stream process equipments
- metal and plastic parts industries.
armament (defense industries)
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