Gas quenching  [ Return towards  Applications  ]

Gas quenching is an environmentally friendly alternative solution to oil or salt bath quenching applications. Associated with low pressure processes (carburizing, nitriding, annealing...), gas quenching offers a better control of the distortion and limits post operations such as rectification. Primarly developed for high performance materials (tools, aeronautics, nuclear) gas quenching can be performed with nitrogen, argon, hydrogen or helium, pure or in mixtures, depending upon the material specifications.

 

gas quenching

More recently, the development of vacuum carburizing applications in the automotive industry has required high-pressure gas quenching furnaces with pressure up to 20 bars.

The cooling rate, which is the key factor in the quenching stage, depends on the quench cell design, the velocity and physical properties of the gas or gas mixture itself.

AIR LIQUIDE has built expertise in the development of dedicated solutions , like ALNAT™ HP, a high pressure delivery solution requiring no gas compressor and ensuring a higher level of availability for your furnace.

Automotive, Aeronautics & Transport

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