HARDENING
Inert gas hardening
During inert gas hardening, the metallic component is brought to the hardening temperature in an inert gas atmosphere and then rapidly cooled in an oil bath. As a rule, low-alloy materials are refined in this way.
Advantages of the process
Cost effecitve
Hardening
Inert gas hardening is a fully automatic, 100 per cent reproducible and therefore relatively inexpensive hardening process.
No
Scaling
The components are protected from negative influences on the edge zone in an inert gas atmosphere.
Outstanding component properties
Rapid quenching in oil during protective gas hardening produces components with a uniform hardening level across the entire cross-section.
The hardening process for high-performance components
Inert gas hardening is used to give steel tools a significantly higher hardness and better mechanical properties.
Low-alloy materials and carbon steels are not suitable for vacuum hardening due to the cooling dynamics. This is where protective gas hardening, in which the component is quenched with oil, comes into play. As oil quenching is much harsher than cooling with gas, a higher distortion is to be expected.
After the professional charging assembly has been transferred to the system, it automatically moves into the hardening furnace. As the furnace chamber is under a protective gas atmosphere, no scaling occurs. Which process gas is used depends on the component in question. The surface can easily oxidise during the subsequent quenching in an oil bath.
A subsequent tempering treatment allows us to precisely adjust the desired component properties. This significantly increases the service life and durability of your products. Inert gas hardening is not suitable for components with sharp edges or large differences in cross-section. The process offers maximum reproducibility.
Key figures
Temperature:
up to 1.000 °C
Oven size:
1000 x 600 x 550 mm
Turnaround time:
ab 48 h
Max. Beladegewicht*:
600 kg
*pro Charge bei Standardgrößen und -behandlungen
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Info!
For the preparation of your individual offer
we need the following information from you:
- Material
- Weight and quantity
- Desired hardness with tolerance range
As a rule, this is ± 2 HRC, for limited qualities ± 1 HRC. - Special requirements such as repeated tempering or straightening
- Additional machining requirements such as eroding or coating
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