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    Method for producing mineral fibres
    1.
    发明授权
    Method for producing mineral fibres 有权

    公开(公告)号：US11820697B2

    公开(公告)日：2023-11-21

    申请号：US16341550

    申请日：2017-10-12

    申请人： SAINT-GOBAIN ISOVER

    发明人： Sébastien Brogniez ,  Guillaume Guery

    IPC分类号： C03B37/04 ,  D01D5/18 ,  D01D7/02

    CPC分类号： C03B37/045 ,  D01D5/18 ,  D01D7/02 ,  D10B2101/06 ,  D10B2401/20

    摘要： A process for forming mineral fibers by internal centrifugation using a device including a basket and a fiberizing spinner suitable for rotating jointly about an axis of rotation, the basket including an annular wall pierced by orifices and the fiberizing spinner including an annular wall pierced by orifices, the process including feeding the basket with material to be fiberized at a temperature Ta; centrifuging the material to be fiberized by joint rotation of the basket and of the fiberizing spinner. The factor F is greater than 2000, the factor F being defined by F=μadN/Q; wherein μa is the viscosity of the material to be fiberized at the temperature Ta; d is the distance between the annular walls of the basket and of the fiberizing spinner; N is the number of orifices of the basket; and Q is the feed flow rate of the material to be fiberized.