ADVANTAGES IN VACUUM TECHNOLOGY
- Bright clean surface and no oxidation
- Save cost in post treatments e.g.. Degreasing
- Optimum minimum change in dimensions
- No carburization or decarburization
- Optimization of heat treatment cycle in accordance to given / require characteristics.
- Repeatability of heat treatment cycles and results
- Computerized documentation of heat treatment cycle.
- Closer allowance before heat treatment means saving in heat treatment cost and final machining cost.
- Environmental friendly- no pollution or waste.
VACUUM HEAT TREATMENTS
- Gas quenching-normal hardening.
- Stress relieving.
- Annealing / tempering stainless steels, moulds, and maraging steels.
- Structural hardening of super alloys and beryllium copper.
- Hardening of martensitic stainless steels- AISI 416, 420.
- Brazing – copper, Silver and Nickel.
APPLICATIONS
- Tools and dies - stamping, forging, embossing, forming, cutting extrusion etc.
- Precision general mechanical parts - Gears, pinions, shafts, jig and fixtures, wheels and cams.
- Electronic parts - Stamping parts of beryllium copper, stainless steel, carbon steels etc.
- Castings - industrial and aerospace part, carbon steels to high alloy steels.
VACUUM BRAZING SERVICE
 TYPES OF BRAZING
- Aluminum and aluminum alloys
- Copper and copper alloys
- Ceramic / dissimilar metals
- Nickel- cobalt and heat-resistant alloys
- Super alloys
- Stainless steels.
- Low alloy steels and tool steels.
- Carbides and cermets.
ADVANTAGES OF BRAZING PROCESS
- Metallurgical joint is formed between the joint
metals.
- Brazing doesn't involve or necessitate melting of
base metal, only the filler material.
- Close tolerance can be utilized as fit up.
- Less induced thermal distortion.
- The whole part can be raised up to braze
temperature it necessary further reducing
the risk
of distortion.
- The process is easily automated and results are
repeatable.
- The HAZ (heat affected zone) produced during
brazing can be controlled.
- Generally the joints are very neat.
- Dissimilar metals can be joined together
successfully without interface to the base metal
metallurgy.
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