Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1987-09-25
1989-09-19
Schor, Kenneth M.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 311, 65 181, 65900, 264 57, 264 60, C03B 1906
Patent
active
048677744
ABSTRACT:
A method is described of producing an elongated glass body, particularly a preform for SiO.sub.2 -base optical waveguides, in which starting glass powder material is shaped to a porous body and the latter is sintered to form a glass body. In order to obtain uniform density throughout the porous body, the starting glass powder material is filled into and simultaneously compacted in a mold. Subsequently, the powder material compacted during the filling is consolidated by a heat treatment to result in the porous body. Molds of different design for the production of tubular or rod-shaped porous bodies are described.
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Webster's Ninth New Collegiate Dictionary, Merriam-Webster Inc., Springfield, Mass.; p. 462; original copyright 1983.
ALCATEL N.V.
Schor Kenneth M.
Van Der Sluys Peter C.
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