Glass fiber bushing

Glass fiber bushing The spinneret platinum unit through which molten glass is drawn in making glass filament. 

T. H. Jensen, Hollow glass fiber bushing, method of making hollow fibers and the hollow glass fibers made by that method, U. S. Patent 4,758,259, July 19,1988. 

Bush, S. F., Impact Strengths of injection molded long glass fiber composites. Plast. Rubber Composites Proc. Appl., 24, 139 (1995). 

Figure 7.2 (a) Schematic of the conventional fabrication procedure for glass fibers (b) Glass fibers being drawn out of holes in a bushing (courtesy of Owen-Coming, Inc.). 

Glass collet The drive wheel that pulls glass fibers from the bushing/spinneret a forming tube is placed on the collet and a package of strand is wound upon the tube. 

Thus, fibers are best formed from strong silica and silicate melts by down-drawing them from preforms or from conventional bushings. Glass fibers can be formed from fragile melts, but they must be super-cooled to a viscosity in the log 2.5 and log 3.0 poise range. 

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