The article describes the achievements and application of a new generation of HPGQ vacuum furnaces. Implementation of 25 bar quenching enables reaching hardening properties compared to the ones obtained with oil, while vacuum carburizing and nitriding additionally create a great potential for running different heat treatment and thermo-chemical processes as well as multiple processes combined in a single furnace cycle. Technical and technological aspects of the furnace exploitation are presented and operational costs reduction and energy saving are considered.

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