Heating – Work chamber having heating means – Work chamber having gaseous material supply or removal...
Patent
1990-10-12
1991-10-01
Bennet, Henry A.
Heating
Work chamber having heating means
Work chamber having gaseous material supply or removal...
432128, 432207, 432226, 266250, 266258, 266274, 219390, F27B 504, C21D 174, C21D 106
Patent
active
050529234
ABSTRACT:
An oven for the partial heat treatment of tools, for example, twist drills, omprises a first section, which contains the heating chamber that is constantly at the desired operating temperature. A second section for the loading and unloading and the quenching is provided. Between the two sections there is arranged a transport device for the charges of tools. The oven may be in the form of a one-chamber or three-chamber vacuum oven. The oven provides a high heat transfer rate, because the heating chamber is constantly at the desired operating temperature and the heat transfer by heat radiation under vacuum is started immediately when the charge is at its final position inside the heating chamber.
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Edenhofer Bernd
Peter Wolfgang
Bennet Henry A.
Ipsen Industries International Gesellschaft mit beschrankter Haf
Kilner Christopher B.
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