防扭钢丝绳用单股钢丝绳生产中存在的问题和对策

Problems and countermeasures in production of single strand wire rope for torsionproof wire rope

分析影响防扭钢丝绳用单股钢丝绳使用寿命的因素,针对生产中存在的问题给出对策:(1)钢丝抗拉强度散差波动控制。拉拔过程采用水箱湿式拉拔,严格控制半成品钢丝的公差范围并消除钢丝冷拉变形的残余应力。(2)镀锌控制。水箱拉拔压缩率大于95%且出线直径小于0.50 mm的钢丝全部采用电镀锌生产,其余则用热镀锌生产;单股钢丝绳外层钢丝采用热镀锌生产,内层钢丝采用电镀锌生产。(3)钢丝绳长度和线密度的控制。严格控制拉丝工序各道次钢丝直径及公差,捻制工序采用电子计米器检测钢丝绳的长度,保证钢丝绳长度精确率。加强防扭钢丝绳用单股钢丝绳生产过程控制,可提高产品质量,提升生产效率,降低生产成本。

To analyze the factors affecting service life of single strand wire rope for torsionproof wire rope, aiming at the problems existing in production to give out countermeasures： （ 1 ） to control steel wire tensile strength scatter difference fluctuation, adopting wet wire drawing machine to strictly control tolerance range of semi-finished steel wire and eliminate steel wire cold drawn forming residual stress; （2） to control galvanizing, adopting electro galvanizing for diameter less than 0.50 mm steel wire with more than 95% reduction of area, hot dipping galvanizing for others; outer layer steel wire in sin- gle strand rope adopt hot dipping galvanizing steel wire, inner wire is produced in electro galvanizing way; （3） to control wire rope length and linear density, in wire drawing course to control pass diameters and tolerance strictly, adopt electric meter counter to detect rope length in lay process, ensure wire rope length precision. Strengthening production process control of single strand rope for torsionproof wire rope can improve product quality, raise production efficiency, and decrease production cost.