Method and apparatus for forming glass fibers

摘要

A feeder for supplying molten streams of glass to be attenuated into fibers is provided comprising a refractory metal core; an oxygen impervious, precious metal sheath and an intermediate diffusion barrier layer intimately bonded together by hot isostatic pressing to form a unitary laminate, said laminate having inserts having orifices extending therethrough adapted to establish streams of molten material for attenuation into filaments.