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钢筋冷拉延伸工艺是校直钢筋、提高钢筋的屈服强度和节约钢材的有效措施,目前已基本普及。要解决的问题是提高冷拉效事,减轻劳动强度。影响冷托效率的因素,除冷拉机本身以外,钢筋的上料、卸料、卡固、调整也关系很大。冷拉工艺发展的趋势是采用液压冷拉机,如图1。用液压冷拉机1冷拉长度为 L的钢筋3,钢筋夹持在前后卡头小车2、4
The cold-drawn steel extension process is an effective measure to straighten the steel bars, increase the yield strength of the steel bars, and save the steel. It has been basically popularized. The problem to be solved is to improve cold work efficiency and reduce labor intensity. Factors affecting cold-reservoir efficiency, in addition to the cold drawing machine itself, the feeding, unloading, clamping, and adjustment of the steel bar are also very important. Cold-drawing process development trend is the use of hydraulic cold-drawing machine, as shown in Figure 1. Hydraulic steel puller 1 cold-drawn steel bars 3 of length L, with steel bars clamped in front and rear chucks