Parallel laid compacted strand steel wire rope for container equipment and production method thereof

Abstract

The invention discloses a parallel laid compacted strand steel wire rope for container equipment and a production method thereof. The lay pitch multiple of the steel wire rope is 6.0-6.8 times; the steel wire rope comprises a metal rope core; six first outer layer strands are arranged around the metal rope core; and the steel wire rope has a structure of 6*K36SFi+IWRC-28mm. The production method comprises the following steps of: calculating the diameter of the steel wire as a finished product and the diameter of the steel wire as a raw material; treating discs with the same diameter and different steel models and drawing the discs into the steel wires with corresponding diameters as the raw materials; thermally treating the steel wires as the raw materials and drawing the steel wires into the steel wires with corresponding diameters as the finished products; and twisting the steel wires as the finished products into outer layer strands and metal rope cores, wherein the outer layer strands adopt two compression ratios of 5 percent and 3 percent and the metal rope cores adopt the compression ratio of 8 percent, forming the parallel laid compacted strand steel wire rope. According to the steel wire rope disclosed by the invention, the metal area of the steel wire is increased; meanwhile, the breaking force of the steel wire rope is improved; and a steel wire structure in the strand is reasonable, so that the service life of the steel wire rope is prolonged.

Description

technical field [0001] The invention belongs to the technical field of steel wire rope manufacturing, and relates to a steel wire rope suitable for hoisting and traction of hoisting equipment such as ports and quay bridges, in particular to a parallel twist compactor for container equipment with a structure of 6×K36SFi+IWRC—28mm Strand steel wire rope; The present invention also relates to a manufacturing method of the parallel twisted compacted strand steel wire rope. Background technique [0002] At present, the parallel lay steel wire ropes used in container equipment such as ports and quay cranes have structures of 25Fi, 31WS and 36WS. Among them, the structure of 25Fi is stable, but under the same diameter, the diameter of the steel wire used in the strand is relatively large, and the fatigue and mechanical properties of the steel wire are poor, so it is not suitable for this equipment; The steel wire, the thin steel wire lying on the peak of the first layer of steel w...

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Problems solved by technology

Among them, the structure of 25Fi is stable, but under the same diameter, the diameter of the steel wire used in the strand is relatively large, and the fatigue and mechanical properties of the steel wire are poor, so it is not suitable for this equipment; The steel wire, the thin steel wire lying on the peak of the first layer of steel wire is very unstable, causing the thin steel wire of the outer layer to move from the original position to the place where there is a gap, making the outer steel wires squeeze each other and the structure is unstable; the outer layer of the steel wire rope Strand steel wire is easy to wear, resulting in broken wire and broken strands, shortening the service life of the steel wire rope

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