MANUFACTURING METHOD FOR CONTINUOUS ALUMINA FIBER SHEET, AND CONTINUOUS ALUMINA FIBER SHEET

• Main Authors: OHSHIMA YASUTAKA, NOZAWA KAZUMI, FUJI KOHICHI
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2019
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; KNITTING; LACE-MAKING; LAUNDERING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; SPINNING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TRIMMINGS; WADDING

Provided is a manufacturing method for a continuous alumina fiber sheet, the method comprising: (I) a step for obtaining an alumina fiber precursor by spinning a spinning dope that has an aluminum compound and a silicon compound as main components; (II) a step for depositing the alumina fiber precursor on an accumulating device to make a precursor continuous sheet; (III) a step for slicing a surface layer of the sheet with a slicer apparatus (1) and thereby smoothing the precursor continuous sheet; (IV) a step for performing an interlacing operation on the precursor continuous sheet via needling; and (V) a step for firing the precursor continuous sheet. Also provided is a continuous alumina fiber sheet in which the variation in the friction coefficient of at least one surface thereof is 10% or less. 本发明提供一种氧化铝质连续纤维片材的制造方法，经过如下步骤来制造：(I)将以铝化合物和硅化合物为主要成分的纺丝原液进行纺丝而得到氧化铝质纤维前驱体的步骤，(II)将上述氧化铝质纤维前驱体沉积在层集装置上以形成前驱体连续片材的步骤，(III)用切片机(1)切割上述前驱体连续片材的表面层以使其平滑的步骤，(IV)对上述前驱体连续片材通过针刺进行缠结处理的步骤，以及(V)将上述前驱体连续片材进行烧成的步骤；并提供至少一侧表面的摩