Method of producing a bubble-free vitreous material

Details Method of producing a bubble-free vitreous material Method of producing a bubble-free vitreous material

1981-10-19

1983-11-08

Fisher, Richard V.

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

65 32, 65 61, 65111, C03B 2000, C03B 3200, C03C 1502

Patent

active

044140142

ABSTRACT:
For the production of a bubble-free vitreous material, and in particular bubble-free vitreous silica, bubbles-containing vitreous material is exposed in a furnace, at a temperature which reduces its viscosity to a value between 10.sup.13.5 and 10.sup.8 Pa.sec, to the omnidirectional pressure ranging from 100 to 3000 bars of a gas which is insoluble in the vitreous material for a period of not less than 10 minutes and is then cooled.

REFERENCES:
patent: 3220814 (1965-11-01), Haven et al.
patent: 3228760 (1966-01-01), Jack et al.
patent: 3459565 (1969-08-01), Jones et al.
patent: 3813276 (1974-05-01), Trap
patent: 3864111 (1975-02-01), Kemp
patent: 4370158 (1983-01-01), Schulke

Affiliated with

Also associated with

Rating

Method of producing a bubble-free vitreous material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of producing a bubble-free vitreous material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing a bubble-free vitreous material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2006038