The invention relates to a method for controlling the decarburization of steel components in a furnace during heat treating processes. The concentration of CO.sub.2 and/or CO in the furnace is monitored in a first batch in order to determine periods of elevated CO.sub.2 /CO concentrations, and inert gas is injected in subsequent batches during the previously determined periods of elevated CO.sub.2 /CO concentrations.

L'invention concerne une méthode pour commander la décarburation des composants en acier dans un four pendant des processus de traitement de la chaleur. La concentration de CO.sub.2 et/ou de Co dans le four est surveillée dans un premier groupe afin de déterminer des périodes des concentrations élevées de CO.sub.2 /CO, et le gaz inerte est injecté dans des groupes suivants pendant les périodes précédemment déterminées des concentrations élevées de CO.sub.2 /CO.
 
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