Method for producing a composite glass body with drawing of conc

Details Method for producing a composite glass body with drawing of conc Method for producing a composite glass body with drawing of conc

1993-04-09

1994-11-15

Jones, W. Gary

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65144, 65 66, 65 86, 65126, 65121, 65DIG9, 65 325, 264173, C03B 1704

Patent

active

053644328

ABSTRACT:
A method for producing an elongated composite glass body by melting at least two starting materials of different material compositions, feeding the starting materials to a drawing die disposed at the bottom of an externally heated melting crucible, and continuously drawing the melts vertically out of the drawing die to form a composite body laminated transverse to the drawing direction. To provide an interface free from impurities between the starting materials in the composite body and to enable the path of the interface to be freely shaped, the starting materials are fed in particle form continuously to a single melting crucible and heaped therein to form a preformed body in which one starting material lies directly next to the other starting material forming an interface line therebetween that extends substantially vertically and parallel to the drawing direction.

REFERENCES:
patent: 2313296 (1943-03-01), Lamesch
patent: 3230291 (1966-01-01), Walz
patent: 3298808 (1967-01-01), Macks
patent: 4133664 (1979-01-01), Aulich
patent: 4155733 (1979-05-01), Sandbank
patent: 4195982 (1980-04-01), Coucoulas
patent: 4372771 (1983-02-01), Coucoulas
patent: 4385916 (1983-05-01), Jochem
patent: 4466818 (1984-08-01), Brongersma
patent: 4578025 (1986-03-01), Ando
patent: 4784679 (1988-11-01), Lentz
patent: 4923497 (1990-05-01), Leber
"Continuous skull-melting of glass", Philips Tech. Rev. 42, No. 3, pp. 93-96, Oct. 1985.

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