Vacuum hardening oven with air cooling flow through ducts controlled by flaps and slides with single drive mechanism
DE19750114A1
Gas carburising of steel is carried out using a mixture containing a vegetable oil
DE19730372A1
Cleaning and de-passivation of surfaces to be nitrided or nitrocarburised with light acids
DE4412940A1
Liq. quenching medium intensity modification
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Case-hardening of steel parts using hydrogen gas reaction - where a vacuum oven is insulated with readily available mineral fibres and is heated by radiation tubes
DE4229803A1
Control of nitriding and nitro:carburising atmospheres - by oxygen probe using fully dissociated gas as reference gas
DE4228748A1
Nitriding or nitro-carburising for steel parts - including holding phase at specific temp. during cooling for hydrogen removal
DE4225250A1
Vacuum furnace for excess pressure dissipation used in steel hardening - has sepd. housings for back cooler and turbine for accelerating cooling gas and further housing contg. heating chamber
DE4122814A1
Heat treatment furnace - has a protective gas atmosphere and evacuable gas quench chamber
DE4122386A1
Vacuum rotary hearth furnace - with combined entry and exit lock, used for rapid cooling
DE4113458A1
Vacuum furnace for heat treatment of metal parts - has cover walls inside heating chamber to confine carriage area to minimal size thereby increasing cooling effects of blown gas
