Special heat treatment methods
Information
Information
In addition to the HS 1 and HS 2 hardening systems, THERMCONCEPT also delivers specially developed hardening accessories that has been proven in practical use over many years. Our accessories are specially designed to complement the various components of the hardening systems, thus enabling inert gas hardening or oxidation-free hardening that is easy in handling and economical in operation. Please contact us for practical advice in selecting the most useful components and how they are handled in practice.
Diamond Block System –
Oxidation-free hardening up to 1300 °C
- Specially suitable for all types of high-speed steel and high-alloy chrome steels
- Multiple use of the carbonaceous block, ensures protective atmosphere
- Oxidation or decarburization of the component is almost completely eliminated
- Easy to operate, superb results, high product quality
- Can be used in all chamber furnaces
Gas Grid System –
Hardening and cooling under inert gas up to 1200 °C
- Enables bright annealing with subsequent gas quenching
- No loss of time during heat-up due to use of ultra-thin foil containers
- Can be used with forming gas, nitrogen and inert gases such as argon and helium
- Very low gas consumption due to small container volumes
- Also available with optional thermocouple for continuous measurement of the temperature inside the container
Hardening Box System –
Hardening, carburizing, nitriding up to 1100 °C
- All hardening boxes match the inside dimensions of the annealing furnaces
- By using a neutral annealing compound, virtually oxidation-free hardening is possible
- Also available with gas connection for inert gas hardening or as atmosphere box with hinged lid that stays in the furnace
- Easy handling, reliable process
Annealing Retort System –
Bright annealing up to 850 °C / Tempering under inert gas
- Annealing and tempering under inert gas for almost oxidation-free workpieces
- Rapid cooling of workpieces under inert gas possible, also outside the furnace, thus enabling fast working cycles
- Gas-tight welded annealing retort supplied for all sizes of standard air-circulation furnaces
- Quick and easy assembly/disassembly of the retort , furnance can be operated also without retort at any time.
Inert gas operation in semi-gastight air-circulation furnaces
- Special version of air-circulation furnaces with gas-tight welded inner liner, inert gas inlet and outlet, furnace door sealed with heat resistant silicon
- Suitable for operation with inert gases such as nitrogen, forming gas, argon, helium etc.
- Inert gas supply during operation results in overpressure in the chamber atmosphere, whereby oxygen is forced out, thus preventing oxygen entering from outside.
A 100% gas-tight seal cannot be guaranteed - Simple and cost-efficient solution with excellent reproducible results