Apparatus for producing multi-component glass fiber preform

Details Apparatus for producing multi-component glass fiber preform Apparatus for producing multi-component glass fiber preform

1982-02-26

1983-06-14

Fisher, Richard V.

Glass manufacturing

Means providing special atmosphere

422129, B01J 1000

Patent

active

043880983

ABSTRACT:
An apparatus for producing a multi-component glass fiber preform includes a multi-conduit burner 31 having five concentric conduits 31a-31e, the center three conduits (a), (b) and (c) being flush with each other at their ends, the fourth conduit d, interposed between the third (c) and outermost conduit (e) extends axially beyond the first three. The burner has a flange 33 to direct the flame onto a substrate.
In operation glass raw material is fed through the inner-most conduit (a) by a carrier gas. The material emitted from conduits (a -d) is mixed in a mixing area 32. Glass raw material and a nebulized dopant salt solution are emitted and burned with hydrogen gas depositing particulate glass material or soot on an adjacent substrate to produce a multi-component glass fiber preform.

REFERENCES:
patent: 3883336 (1975-05-01), Randall
patent: 4217027 (1980-08-01), MacChesney et al.
patent: 4224046 (1980-09-01), Izawa et al.
patent: 4230744 (1980-10-01), Blankenship

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