Glass manufacturing – Processes – With shaping of particulate material and subsequent fusing...
Patent
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.
Bartlett Ernestine C.
Briody Thomas A.
Lindsay Robert L.
Streeter William J.
U. S. Philips Corporation
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