Title

ATMOSPHERE CONTROL SYSTEMS - FOR HIGHER QUALITY AND CONSISTENCY1

ATMOSPHERE CONTROL SYSTEMS - FOR HIGHER QUALITY AND CONSISTENCY1

Authorship

FORÊT, PIERRE; LAUMEN, CHRISTOPH; BIGIO, SYLVANO

FORÊT, PIERRE

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LAUMEN, CHRISTOPH

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BIGIO, SYLVANO

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DOI

10.5151/2594-5327-16900

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Abstract

Atmosphere control in heat treatment furnaces is one of the most important variables in a successful heat treatment process. This statement becomes even more weight when the range of the materials and parts treated is varying so that relying on experiences can become a bold venture. Today the consumers expect goods of good value with a stable and long lasting controlled quality. In heat treatment that has been attempted by strict control of the ingoing materials and keeping the parameters like temperature, atmosphere composition and flow on a predefined level. However there are influencing variables that cannot be scoped with by that approach. Here the on- line atmosphere control can be used for a wide range of annealing, carburizing, nitriding and nitrocarburising processes as well as for sintering to assure a uniform result without surprises. The presented paper shows tailor-made concepts of atmosphere control systems for a variation of different HT processes and illustrates the technological results and cost benefits that can be achieved.

Atmosphere control in heat treatment furnaces is one of the most important variables in a successful heat treatment process. This statement becomes even more weight when the range of the materials and parts treated is varying so that relying on experiences can become a bold venture. Today the consumers expect goods of good value with a stable and long lasting controlled quality. In heat treatment that has been attempted by strict control of the ingoing materials and keeping the parameters like temperature, atmosphere composition and flow on a predefined level. However there are influencing variables that cannot be scoped with by that approach. Here the on- line atmosphere control can be used for a wide range of annealing, carburizing, nitriding and nitrocarburising processes as well as for sintering to assure a uniform result without surprises. The presented paper shows tailor-made concepts of atmosphere control systems for a variation of different HT processes and illustrates the technological results and cost benefits that can be achieved.

Keywords

Atmosphere

Atmosphere