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关 键 词：摇黒板机
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发布时间：2008-09-20
纱线检验机,将带性纱线按一定纱线密度缠绕中在方形的黑板上，评定棉、化纤、混纺、毛、麻等纱线摇黒板法的外观质量。 To assess the evenness, hairiness, neps and other imperfections in a representative sample of yarn wound at a pre-determined pitch onto a tapered black board. Variable pitch traverse 8 - 19 wraps per centimetre, variable winding speed drive, with yarn package stand and 2 tapered aluminium black boards 575mm x 250mm x 160mm. Assessment against photographic comparison standards ASTM Photographic 标准Standards: GB9996-1988、ASTＭD2255
