Method and apparatus for forming round glass fibers

Details Method and apparatus for forming round glass fibers Method and apparatus for forming round glass fibers

1990-07-12

1991-11-05

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 2, 65 12, C03B 3708

Patent

active

050628763

ABSTRACT:
This invention relates to a novel bushing apparatus having unique nozzles or projecting orifices for the production of round glass fibers. Particularly, it relates to a bushing having tips with cross-sections in the form of finite-sided polygons. It is shown that the use of noncircular tips to produce round fibers can result in higher tip packing densities, higher throughputs, and increased forming process stability than are now possible using the present state of the art. Tips with square cross-sections are shown to be the most preferred embodiment.

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The Manufacturing Technology of Continuous Glass Fibers, by K. L. Lowenstein, published by the Elsevier Scientific Publishing Company, New York, 1973, pp. 61-66 and 89-106.

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