Heat & surface treatment

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