Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1998-12-31
2000-04-25
Pelham, Joseph
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
250504R, 362307, 392422, F27D 1300, F21V 722, G02B 512, G02B 526
Patent
active
060546875
ABSTRACT:
A heating apparatus and method for welding a superalloy article. In a preferred embodiment, the apparatus and method entail welding a superalloy article within an enclosure equipped with a thermal radiation-generating device that preheats the article to a temperature of at least 1500.degree. F. prior to welding. The invention more particularly provides a thermally-reflective coating on a reflector member positioned adjacent the thermal radiation-generating device for the purpose of reflecting thermal radiation emitted by the device into the enclosure. The device is then operated to heat the superalloy article to a suitable temperature, e.g., 1500.degree. F. or more, after which a welding operation is performed on the superalloy article.
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Ackerman John F.
Broderick Thomas F.
Conner Jeffrey A.
Powers John M.
Stowell William R.
General Electric Company
Gressel Gerry S.
Hess Andrew C.
Pelham Joseph
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