Method for carbonitriding at least one component in a treatment chamber

摘要

The invention relates to a method for carbonitriding at least one component (12) in a treatment chamber (16), in which at least one process gas (28; 30) is introduced into the treatment chamber (16), wherein a hydrogen content (44) is detected in an atmosphere developing in the treatment chamber (16) and is maintained in a desired range (55; 57) at least at intervals by influencing of the amount of the process gas (28; 30) that is fed.

主权项

1. A method for carbonitriding at least one component (12) in a treatment chamber (16), comprising introducing a process gas (28; 30) comprising a carbon-donating gas and a process gas comprising a nitrogen-donating gas into the treatment chamber (16), detecting a hydrogen content (44) in an atmosphere (46) developing in said treatment chamber (16) as a by-product from the process gas comprising a carbon-donating gas and/or the process gas comprising a nitrogen-donating gas and maintaining the hydrogen content in a desired range (55; 57) at least temporarily by influencing the amount of the process gas comprising a carbon-donating gas and/or the amount of the process gas comprising a nitrogen-donating gas that is fed, wherein at least two chemically different process gases (28, 30) act chemically in succession on the component (12) and wherein an evacuation or purge of the treatment chamber is completed when the detected hydrogen content (44) of the atmosphere (46) undershoots a predefined threshold value (45).