C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 37/04 (2006.01) C03B 37/075 (2006.01) D01D 5/24 (2006.01)
Patent
CA 2239219
In a method for producing hollow mineral fibers (20) such as glass fibers, molten glass is supplied to a rotating glass spinner (10) having a peripheral wall (14). The spinner rotates so that molten glass is centrifuged through a first tube (24) extending through the peripheral wall of the spinner to form fibers. Gas is introduced into the interior of the molten glass to form hollow glass fibers. A second tube (44) positioned inside the first tube includes an inlet (56) in the wall of the first tube (24), and gas is introduced through the inlet from outside the peripheral wall. The hollow glass fibers are then collected to form a product such as a mat (130).
La présente invention concerne un procédé de fabrication de fibres minérales creuses (20), par exemple des fibres de verre, mettant en oeuvre un centrifugeur de verre fondu (10). La rotation du centrifugeur force le verre fondu à pénétrer dans un premier tube (24) qui traverse la paroi périphérique (14) de l'appareil pour former des fibres. Un gaz est introduit dans le verre fondu pour creuser les fibres. Le premier tube (24) renferme un deuxième tube (44) dont l'ouverture (56) est pratiquée dans la paroi du premier tube. Le gaz est introduit d'une source extérieure par cette ouverture. Les fibres de verre creuses sont ensuite réunies pour former un produit final, par exemple un mat (130).
Huey Larry Joe
Lin David Chie Kuang
Owens Corning
Smart & Biggar
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