我们在学习外地经验的基础上,开展了利用废旧钢丝绳生产预应力中小型构件的研究工作。几个月来,对矿山和石油部门的单丝为φ~s3.5和φ~s2.2的废旧钢丝绳进行了材性试验,说明废旧钢丝绳力学性能比冷拔低碳钢丝好。试制了一套简易拆丝和除油设备,利用φ~s3.5钢丝试制生产了一批多孔板、折板、马鞍形壳板、槽板、平板、电杆等构件,这些构件的用钢量都比用冷拔钢丝 Based on our experience in the field, we have carried out research on the use of waste steel wire ropes to produce pre-stressed small and medium-sized components. Over the past few months, wood properties tests have been carried out on waste wire ropes with single wires of φ~s3.5 and φ~s2.2 in the mining and petroleum sectors, indicating that the mechanical properties of waste steel wire ropes are better than those of cold drawn low-carbon steel wires. A simple set of equipment for wire removal and degreasing was trial-produced, and a number of porous plates, folded plates, saddle-shaped shell plates, channel plates, flat plates, poles and other components were fabricated using φ~s3.5 steel wire. Both are cold-drawn steel wire