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A method of manufacturing an elevator wire rope

A production method and technology of steel wire rope, which are applied in the directions of textile cable, textile and paper making, etc., can solve the problems of large elongation of steel wire rope, low strength grade of steel wire, and difficult control.

Active Publication Date: 2016-04-06
JIANGSU SAFETY STEEL WIRE ROPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The elevator wire rope is mainly made of 8-strand sisal core, and the main structure is 8*19S+NF. Due to the large proportion of hemp core, the strength level of the steel wire used in this type of wire rope is relatively low, the elongation of the wire rope is relatively large, and it is not easy to control, which leads to the elevator The service life of the wire rope is reduced and the danger is increased

Method used

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Examples

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Embodiment Construction

[0018] A method for manufacturing elevator steel wire ropes, using sisal hemp and hot-rolled wire rods as raw materials, using 70# high-quality carbon steel for the center and inner layer steel wires, and 60# high-quality carbon steel for the outer layer wires, and drawing the wire rods for the first time with a wire drawing machine Then the steel wire drawn for the first time is heated and quenched, and then surface treated to obtain a sorbite quenched steel wire, and the quenched steel wire obtained by the above heat treatment is drawn. The compression rate is 85%-88%, and the compression rate of the center and inner layer wires is 87%-92%. The obtained outer layer steel wire, inner layer steel wire, and center steel wire are twisted into steel wire strands, and the twist direction is opposite to that of the steel wire rope. , during the twisting process, use a mold with a diameter of 97%-98% to shape the steel wire. At the mold inlet, the steel wire is sprayed with special g...

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Abstract

The invention discloses a manufacturing method of steel wire ropes for elevators, comprising the following steps: taking sisal hemps and hot-rolled wires as raw materials; heating and quenching the wires after drawing; then drawing and entwisting to form steel wire rope strands; matching the yarns of ramie according to the diameter of the core of the needed sisal hemps; entwisting the strands and the ropes on the same device; packaging and entwisting the steel wire ropes with the sisal hemp ropes to entwist the needed steel wire ropes; and repeatedly bending through a pulley set to form the steel wire ropes with sisal hemp cores. The steel wire ropes manufactured by the manufacturing method have the advantages of low elongation and uniformity and provide good basis for mounting and using the elevators during assembling the elevators; the manufacturing method prolongs the service life of the steel wire ropes to a certain extent.

Description

technical field [0001] The invention relates to a method for manufacturing a wire rope, in particular to a method for manufacturing an elevator wire rope. Background technique [0002] Elevator wire ropes are specially used on elevators and mainly play the role of carrying elevators. The elevator wire rope is mainly made of 8-strand sisal core, and the main structure is 8*19S+NF. Due to the large proportion of hemp core, the strength level of the steel wire used in this type of wire rope is relatively low, the elongation of the wire rope is relatively large, and it is not easy to control, which leads to the elevator The service life of the wire rope is reduced and the danger is increased. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an elevator wire rope with low and uniform elongation. [0004] In order to solve the above-mentioned technical problems, the invention provides a method for manufacturing an ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D07B1/06
Inventor 过惠成左士龙钱远忠
Owner JIANGSU SAFETY STEEL WIRE ROPE
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