Forged and compacted steel wire rope with multi-layer inner layer rope and its manufacturing method

Abstract

A kind of forged and compacted steel wire rope with multi-layer inner layer rope. The steel wire rope structure is 35W×7. The strands are twisted once and formed by forging and compacting. The manufacturing method is to first twist the inner and outer strands, then use the inner strands to twist the inner rope, then forge and compact the inner rope, and finally use the forged and compacted inner rope and outer strand To close the rope. The steel wire rope strands of the present invention have uniform gaps, no cracks observed with the naked eye, increased contact area between the outer layer strand steel wire and the inner layer rope, reduced early broken wires of the inner layer rope, high fatigue life of the steel wire rope, high breaking tension of the whole rope, and improved the service life of the wire rope.

Description

technical field [0001] The invention relates to a forged and compacted steel wire rope with inner layers of multi-layer strands and a manufacturing method thereof, belonging to the technical field of metal product processing. Background technique [0002] The existing multi-layer steel wire rope strands have uneven gaps, and there are cracks when observed with the naked eye. The quality of steel rope twisting is unstable, and early broken wires of the inner layer rope will occur, resulting in a short service life of the steel wire rope. Therefore, we precisely control the diameter of the inner rope through forging and compaction. The surface state of the inner rope is similar to that of a compacted steel wire rope. The metal filling coefficient increases, and the breaking force of the whole rope increases, so that the gap between the strands of the multi-layer steel wire rope is uniform. , and observe no cracks with the naked eye, increasing the contact area between the oute...

AI Technical Summary

Problems solved by technology

[0002] The gaps between the existing multi-layer steel wire rope strands are uneven, and there are cracks observed with the naked eye. The quality of the steel rope twisting is unstable, and the inner rope will be broken early, resulting in a short service life of the steel wire rope.