Furnaces for hardening
Hardening processes take place in a vacuum or under a controlled or protective atmosphere, which prevents scaling or decarburization of the surface of the processed parts. Vacuum hardening can be performed by overpressure gas quenching (eg nitrogen, argon) or in a special quenching oil, resulting in very clean surfaces and minimal deformation. Hardening under a protective atmosphere slows down the oxidative aging of the hardening oil, thus prolonging its service life and reducing its maintenance costs.
- Without surface oxidation and decarburization
- Horizontal / vertical furnaces
- N2 / Ar gas overpressure hardening
- Oil quenching
- Quenching in oil / gas in one furnace
- High / fine vacuum
- Cooling direction change * 2R *
- Controlled cooling
- Graphite / metal insulation
- Temperature measurement directly in the batch
Furnaces with controlled atmosphere
(Mahler, IVA)
- Without surface oxidation and decarburization
- Multi-purpose / shaft / carousel furnaces
- Continuous furnaces
- Electric / gas heating
- Hardening and chemical-heat treatment
- Hardening in oil / water / polymer quenchant
