Heat & surface treatment

Heat treatment

Vacuum hardening

Vacuum hardening is a heat treatment process which heating the wordpieces in the vacuum condition compare to the protective atmosphere, which bring us following advantages:

  • Dissociation of pre-existing oxides
  • Bright, Oxide free treatment of most metals, especially free inter-granular oxidation(IGO)
  • No risk of contamination, for example “hydrogen embrittlement”, “carbon pick up”, especially for the high strength steel which need good fatigue resistance
  • Lower distorsion which following by high pressure gas quenching
  • Environmentally, vacuum heat treatment is a clean process
  • Production flexible, restarting from room temperature of every batch
We provide you a professional heat treat ment service