Title:
ELECTRIC HEATING FURNACE
Document Type and Number:
Japanese Patent JPS6183634
Kind Code:
A
Abstract:
57 An electrically heated forehearth for use in glass production is heated by means of a plurality of radiant heating elements (18), each element (18) traversing the forehearth substantially at right angles to the direction of glass flow and each element (18) comprising heating zones (20, 21) at each edge portion and a central, non-heating zone (19). With the forehearth according to the present invention the molten glass (12) in the forehearth is heated electrically at its edge, cooler, portions only. The central and therefore hotter part of the molten glass (12) under the non-heating zone (19) of the element (18) is unheated.
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| WO/1987/001691 | RELATED CASES |
| WO/2000/037370 | METHOD FOR PRODUCING MINERAL WOOL |
Inventors:
ARAN SUTEFUENSU
Application Number:
JP20677485A
Publication Date:
April 28, 1986
Filing Date:
September 20, 1985
Export Citation:
Assignee:
B H F ENG LTD
International Classes:
C03B7/07; (IPC1-7): C03B7/06
Attorney, Agent or Firm:
Takehiko Saito