Steel wire rope stranding laying-up process

Abstract

The invention discloses a process for twisting strands of a steel wire rope, which is characterized by comprising the following steps: (1) twisting the strands, and applying oil to each strand of the steel wire by pouring oil to reduce the friction coefficient between the steel wire and the crimping die ; The diameter tolerance range of the crimping die is ‑1.5~‑1%; (2) For closing the rope, drip oil through the oil drip bottle at the closing mouth before forming the rope; The rope core adopts the diameter tolerance range of +2.5~+3.5%. For hemp core, the diameter tolerance range of the crimping die is 0~+1%, and the diameter tolerance range of the caliper is 0~+1%. The hemp core is first treated with oil containing the following components, including 15-18 parts of wax paste, 65-78 parts of extracted oil, 2-7 parts of high pressure polyethylene, 1-4 parts of petroleum grease soap, 1-3 parts of petroleum sulfonate compounds, 0.2-2 parts of graphite, 0.2-1 parts of sodium hydroxide and naphthene Lead acid 0.2‑1.2 parts. The technology of the invention is simple and reasonable, greatly reduces the damage of the outer steel wire in the process of stranding or splicing, can increase the qualification rate of the wire rope to over 90%, and the finished wire rope has excellent comprehensive performance and is worthy of promotion.

Description

technical field [0001] The invention belongs to the field of steel wire rope production, and in particular relates to a steel wire rope twisting process, which is especially suitable for the production of low-strength steel wire ropes. Background technique [0002] With the advancement of science and technology, the amount of steel wire rope is becoming more and more widely used, and there are more and more steel wire rope manufacturers, and the competition is becoming increasingly fierce. Improving product quality and pass rate is the common demand of the market and manufacturers, and the existing production process of ordinary steel wire rope includes: Hemp core diameter control, material selection, front and rear deformation and other processes. In the prior art, the diameter tolerance control of the twisted rope core, the diameter tolerance control of the crimping die, the diameter tolerance control of the sizing device and the stranding process are not reasonable enough...

AI Technical Summary

Problems solved by technology

In the prior art, the diameter tolerance control of the twisted rope core, the diameter tolerance control of the crimping die, the diameter tolerance control of the sizing device and the stranding process are not reasonable enough, resulting in a large loss of mechanical properties of the steel wire rope including torsion and bending, and the outer layer is low. The strength steel wire is easy to be damaged, the toughness of the steel wire rope is unstable, and the pass rate of the steel wire rope is low. People need to find a better solution