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Preparation method of double-twisted galvanized steel cord

A technology of galvanized steel and steel cords, applied in textiles, papermaking, yarn, etc., can solve problems affecting tire quality, slow rope making speed, easy deformation, etc., to increase anti-aging and fatigue resistance, and good control , Strengthen the effect of tightness

Pending Publication Date: 2021-09-24
张家港市骏马钢帘线有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the automobile industry, the demand for tires continues to increase, and higher requirements are placed on the performance and quality of steel cords. Due to rainy weather, when the car is driving in a humid environment, water vapor can invade the interior of the steel cord. In order to improve the corrosion resistance of the steel cord and prolong the service life of the tire, it is necessary to galvanize the surface of the steel cord to improve its anti-corrosion performance. The existing galvanized steel cord products are all single twist Rope making, the speed of making rope is slow, the efficiency is low, and the twisted steel cord is easily deformed after long-term use, which affects the quality of the tire

Method used

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  • Preparation method of double-twisted galvanized steel cord
  • Preparation method of double-twisted galvanized steel cord
  • Preparation method of double-twisted galvanized steel cord

Examples

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preparation example Construction

[0022] The invention provides a method for preparing a double-twisted galvanized steel cord, comprising the following preparation steps:

[0023] (1) Select high-quality wire rods, draw the wire rods with a wire drawing machine to obtain steel wires of the same specification, and hot-dip galvanize the steel wires to obtain galvanized steel wires;

[0024] (2) Pull the galvanized steel wire through the water tank again for 25 times of low compression ratio to obtain a drawn steel wire with a diameter of 0.30-0.37mm;

[0025] (3) Choose five equal-diameter drawing steel wires, use a standard rope frame to carry out pre-deformation to five monofilaments through a deformation wheel with a diameter of 6mm, to obtain pre-deformed monofilaments;

[0026] (4) Twist the five pre-deformed monofilaments in the S-twisting direction S with a 550-650g pay-off tension and a 12.5mm lay length on a ply double twister with a six-axis pay-off model, and at the same time use ATC automatic residua...

Embodiment 1

[0030] The preparation method of the double-twisted galvanized steel cord of the present embodiment comprises the following steps:

[0031] (1) Select high-quality wire rods, draw the wire rods with a wire drawing machine to obtain steel wires of the same specification, and hot-dip galvanize the steel wires to obtain galvanized steel wires;

[0032] (2) The galvanized steel wire is drawn through the water tank again for 25 times of low compression ratio to obtain a drawn steel wire with a diameter of 0.30mm;

[0033] (3) Choose five equal-diameter drawing steel wires, use a standard rope frame to carry out pre-deformation to five monofilaments through a deformation wheel with a diameter of 6mm, to obtain pre-deformed monofilaments;

[0034] (4) Twist the five pre-deformed monofilaments in the S-twisting direction with a six-axis pay-off type double-twist machine with a pay-off tension of 550g and a twist length of 12.5mm, and use ATC automatic residual torsion control at the s...

Embodiment 2

[0038] The preparation method of the double-twisted galvanized steel cord of the present embodiment comprises the following preparation steps:

[0039] (1) Select high-quality wire rods, draw the wire rods with a wire drawing machine to obtain steel wires of the same specification, and hot-dip galvanize the steel wires to obtain galvanized steel wires;

[0040] (2) The galvanized steel wire is drawn through the water tank again for 25 times of low compression ratio to obtain a drawn steel wire with a diameter of 0.35 mm;

[0041] (3) Choose five equal-diameter drawing steel wires, use a standard rope frame to carry out pre-deformation to five monofilaments through a deformation wheel with a diameter of 6mm, to obtain pre-deformed monofilaments;

[0042] (4) The five pre-deformed monofilaments are twisted in the S-twisting direction with a six-axis pay-off type double-twist machine with a pay-off tension of 600g and a twist length of 12.5mm. At the same time, ATC automatic resi...

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Abstract

The invention discloses a preparation method of a double-twisted galvanized steel cord. The method comprises the following steps of (1) drawing wire rods into steel wires, and carrying out hot galvanizing on the steel wires to obtain galvanized steel wires; (2) drawing the galvanized steel wires again through a water tank to obtain drawn steel wires; (3) selecting the five drawn steel wires, and performing pre-deformation to obtain pre-deformed monofilaments; (4) twisting the five pre-deformed monofilaments to obtain a twisted steel cord; and (5) enabling the twisted steel cord to be rolled and inspected, so that the double-twisted galvanized steel cord is obtained. According to the prepared double-twisted galvanized steel cord, the monofilaments are twisted more tightly, the twisting quality of the steel cord is improved, the head scattering condition of the steel cord can be effectively controlled, and the twisting efficiency of the steel cord is improved.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to a preparation method of a double-twisted galvanized steel cord. Background technique [0002] With the rapid development of the automobile industry, the demand for tires continues to increase, and higher requirements are placed on the performance and quality of steel cords. Due to rainy weather, when the car is driving in a humid environment, water vapor can invade the interior of the steel cord. In order to improve the corrosion resistance of the steel cord and prolong the service life of the tire, it is necessary to galvanize the surface of the steel cord to improve its anti-corrosion performance. The existing galvanized steel cord products are all single twist The rope making speed is slow and the efficiency is low, and the twisted steel cord is easily deformed after long-term use, which affects the quality of the tire. Contents of the invention [0003] In view of this, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/48
CPCD02G3/48D10B2505/022
Inventor 何方剑
Owner 张家港市骏马钢帘线有限公司
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