Method and apparatus for making fibers from thermoplastic...

Details Method and apparatus for making fibers from thermoplastic... Method and apparatus for making fibers from thermoplastic...

Category

C - Chemistry, Metallurgy

Subcategory

03

Subsubcategory

B

CPC

18/507, 49/8.1

IPC codes

C03B 37/06 (2006.01) D01D 5/26 (2006.01)

Type

Patent

Patent number

CA 1109617

Description

ABSTRACT OF THE DISCLOSURE Method and equipment are disclosed for forming fibers from attenuable material such as molten glass, by the use of high velocity whirling gas currents or tornadoes. Attenuation is preferably effected in two stages, the first of which utilizes a pair of high velocity whirling currents or tornadoes formed by delivering a gaseous jet through a jet guiding device of trough-like form which is concavely curved, thereby developing a pair of counter-rotating tornadoes, with a zone of laminar flow therebetween, a stream of the attenuable material being delivered to the jet in the zone of laminar flow. A larger gaseous blast is also utilized being directed in a path intercepting the path of the jet to provide a zone of interaction also characterized by a pair of counter-rotating tornadoes, the stream of attenuable material being carried by the jet into the blast thereby subjecting the material to a second stage of attenuation in said zone of interaction.

Application Number

306397

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