Industrial Heat Treating Furnace That Uses a Protective Gas

An industrial furnace (1) into which protective gas is admitted for the heat treatment of batches (5) of metal workpieces is described. The heat treating furnace includes an entrance lock (2) which can be sealed with respect to the surrounding environment by means of a first gas-tight closure device...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SARRES ROLF, ANGENENDT MARC
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MECHANICAL ENGINEERING OPEN SINTERING OR LIKE APPARATUS OVENS RETORTS WEAPONS
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Beschreibung
Zusammenfassung:	An industrial furnace (1) into which protective gas is admitted for the heat treatment of batches (5) of metal workpieces is described. The heat treating furnace includes an entrance lock (2) which can be sealed with respect to the surrounding environment by means of a first gas-tight closure device (2.2.1). The heat treating furnace also includes a third gas-tight closure device (3.1) disposed between a heat treatment chamber (3) of the furnace and a quenching facility (4) at the exit of the heat treatment chamber. With the foregoing arrangement a pressure of the protective gas admitted into the heat treatment chamber (3) can be maintained during loading and unloading of a batch of metal workpieces (5). The entrance lock may be configured as a dual-chamber vertical arrangement or as a single chamber horizontal arrangement.