Method of manufacturing rotationally symmetrical glass bodies

Details Method of manufacturing rotationally symmetrical glass bodies Method of manufacturing rotationally symmetrical glass bodies

1986-07-14

1988-02-23

Lindsay, Robert L.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 311, 65 17, 501 12, C03B 37016, C03C 1500

Patent

active

047268280

ABSTRACT:
A method of manufacturing rotationally symmetrical glass bodies. The starting material for the glass body is a thixotropic suspension consisting of powered glass in a liquid dispersing agent. The suspension is introduced into a hollow mold whose geometry corresponds to that of the glass body to be formed. The hollow mold is rotated about its longitudinal axis to deposit the suspension on the inner wall of the hollow mold. The after which the green body thus formed is purified and sintered. The green body is formed by heating the rotating mold and the suspension therein to a temperature below the boiling point of the dispersing liquid until cross-linking and solidification of the starting material is obtained. Thereafter, the green body can be removed from the hollow mold.

REFERENCES:
patent: 4417910 (1983-11-01), Passaret
patent: 4541855 (1985-09-01), Scherer
patent: 4605428 (1986-08-01), Johnson et al.

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