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对GB 8918—2006将6×9W-FC钢丝绳归属6×7类钢丝绳提出质疑,指出6×9W-FC—20钢丝绳生产的难点在于3-3+3股的捻制,该股是平行捻结构,内层由3根Φ1.3 mm钢丝组成,外层由Φ1.90 mm和Φ2.30 mm钢丝组成,粗细钢丝间隔排列,不同层钢丝在股中具有相同的捻距。给出钢丝绳中钢丝的生产工艺和捻股合绳方法及参数,对股绳通过后变形器表面不平整现象进行分析,指出这是由于内层钢丝无间隙的结构决定的,可通过减小捻距和选择合适尺寸的后变形器来解决。
On the GB 8918-2006 will be 6 × 9W-FC wire rope belonging to 6 × 7 category rope questioned that 6 × 9W-FC-20 wire rope production difficulties is the 3-3 +3 strands of twist, the stock is parallel to the twist structure , The inner layer consists of three Φ1.3 mm steel wire, the outer layer by Φ1.90 mm and Φ2.30 mm steel wire, thick wire spacing arranged in different layers of wire in the strand with the same pitch. The production process of steel wire in wire ropes and the method and parameters of the twisting strands are given. The surface irregularities on the deformable wire after the strands are passed are analyzed. It is pointed out that this is due to the structure of the inner steel wire without any gap, Distance and choose the right size after the deformer to solve.