Method and apparatus for producing fibers by internal centrifugation and application to the defibering of certain glasses

摘要

Techniques for making fibres by internal centrifuging of glasses of high melting point, such as basaltic glasses. …??According to the invention the fibre production is obtained by maintaining a temperature gradient between the inner and outer walls of the peripheral band of the centrifuge. The invention also relates to a device for making fibres in which the peripheral band is made of a material which has a thermal conductivity lower than 20 W m-1 DEG C-1 at 1000 DEG C. …??Application to the production of fibres from glasses whose working range is less than 100 DEG C in width. …IMAGE…