Process for heat treating, especially carburizing or hardening metallic materials energetically utilizes the gases produced during the heat treatment process

摘要

Heat treating process uses a protective or reaction gas. The gases produced during the heat treatment are energetically utilized. An Independent claim is also included for a heat treatment device. Preferred Features: The gases produced during the heat treatment are partially used to produce a current. At least a part of the gases produced is fed to a fuel cell. A gas preparation unit is connected to the fuel cell.