Ipsen Limited

Ipsen International, Gmbh

Jens Bechthold

Bernd Edenhofer

Werner Hendrik Grobler

Thomas Eversmann

Peter Haase

Thorsten Requardt

Dirk Joritz

Nils Bernhagen

Hendrik Grobler

In a device for preparing process gases () for heat treatments of metallic materials/workpieces, the respective process gas () is to be fed into at least one treatment chamber () in an industrial furnace () having been practically fully prepared, homogenised and heated, and the method is to be carried out both with newly built and particularly with already existing installations of industrial furnaces () with the aid of the device, wherein the process gas () is prepared with compression at temperatures uncoupled from the temperature in the treatment chamber (), in a process separate from the heat treatment process in the treatment chamber (), and in a temperature range up to about 1250&#xb0; C., and is rendered usable for economical and low-emission heat treatment (FIG.).

Device for conditioning process gases for the heat treatment of metallic work pieces in industrial furnaces

For regulating process gases for heat treatments of metal materials/workpieces in industrial furnaces (), which have at least one treatment chamber (), at least one burnoff point () having at least one first valve (), and a regulator () having pressure meter (), the burnoff point () is only to be opened as a function of requirements related to the process gas. For this purpose, in a first step, with open first valve (), a quantity of a flushing gas () of the gas mixture () of the respective process gas is supplied in a controlled manner to the industrial furnace () and then burned off, in a second step, the valve () is closed, the industrial furnace () is regulated to a preset furnace pressure and this is permanently detected via the pressure meter (), in a third step, with the target pressure of the industrial furnace achieved, this pressure is detected via the pressure meter () and maintained, the first valve () further remaining closed. In a fourth step, the flushing gasification can be activated and adjusted. In the event of large pressure rise, in a fifth step, an overpressure flap () of the burnoff point () can be opened in a controlled manner via a fixed limiting value for pressure dissipation.

Method and device for controlling process gases for heat treatments of metallic materials/workpieces in industrial furnaces

In a method and with a device for preparing process gases () for heat treatments of metallic materials/workpieces, the respective process gas () is to be fed into at least one treatment chamber () in an industrial furnace () having been practically fully prepared, homogenised and heated, and the method is to be carried out both with newly built and particularly with already existing installations of industrial furnaces () with the aid of the device, wherein the process gas () is prepared with compression at temperatures uncoupled from the temperature in the treatment chamber (), in a process separate from the heat treatment process in the treatment chamber (), and in a temperature range up to about 1250&#xb0; C., and is rendered usable for economical and low-emission heat treatment (FIG.).

Method for conditioning process gases for the heat treatment of metallic work pieces in industrial furnaces

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Hamminkeln, Germany

Jens Bechthold