| 摘要 |
PURPOSE:To reduce the content of particles in the formed fiber and to improve the quality of the fiber by increasing the centrifugal acceleration or peripheral velocity of the rotary drum of a multistage rotary drum type centrifugal fiberizing device in the production of inorg. fiber by the device. CONSTITUTION:The melt as the material for producing the inorg. fiber such as rock wool and glass wool is supplied to the multistage rotary drum type centrifugal fiberizing device, and inorg. fiber is produced. In this case, the centrifugal acceleration or peripheral velocity of the rotary drum is increased to reduce the content of the particles in the inorg. fiber. As a concrete production method, the mean centrifugal acceleration of the rotary drum from the second stage on is increased to >=10X10<3>G, hence the content of the particles having >=88mu diameter in the inorg. fiber can be reduced to <=20%, and the content of the particles having >=177mu diameter in the inorg. fiber can be reduced to <=10% by increasing the acceleration to >=15X10<3>G. |
