Induction furnaces for the synthesis of glasses

Details Induction furnaces for the synthesis of glasses Induction furnaces for the synthesis of glasses

1998-07-01

2000-01-11

Hoang, Tu Ba

Industrial electric heating furnaces

Induction furnace device

373 27, 373151, 65388, 219635, H05B 602

Patent

active

060144033

ABSTRACT:
In an induction furnace for the synthesis of glasses, in particular fluorozirconate glasses for optical fibres for telecommunications, the support device (6') for the crucible (3) is associated with a pair of sleeves (7, 9) between which an annular element (8) which constitutes the actual support element is inserted. The first sleeve (7) has such longitudinal dimensions that the crucible (3) is supported in the annular element (8) in such a way as to be spaced from the planar element (5'), and the second sleeve has such longitudinal dimensions that its top edge is at a level higher than that of the top edge of the crucible (3), to obtain a homogeneous temperature region extending at least along the entire height of the crucible (3).

REFERENCES:
patent: 4885019 (1989-12-01), Hutta
patent: 5022044 (1991-06-01), Thomas
patent: 5308947 (1994-05-01), Fleming, Jr.
patent: 5410567 (1995-04-01), Brundage et al.
patent: 5526375 (1996-06-01), Binder et al.

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