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14AC-1825MPa-grade high-strength aluminum-clad steel wire and manufacturing method thereof

A 1.14ac-1825mpa, aluminum-clad steel wire technology, applied in the field of high-strength aluminum-clad steel wire production technology, can solve the problems that cannot meet the high load-carrying capacity of the wire, the tensile strength does not exceed, etc., to achieve improved smoothness, high tensile strength, The effect of saving aluminum

Active Publication Date: 2021-03-02
天津市新天钢中兴盛达有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]At present, with the development of the power industry and the needs of foreign markets, high-performance development is being carried out. The current national standard requires that the tensile strength of aluminum-clad steel wire does not exceed 1590MPa, which cannot meet Some transmission line projects require high carrying capacity of conductors

Method used

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Embodiment Construction

[0033] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0034] 14AC-1825MPa high-strength aluminum-clad steel wire, characterized in that: the mass fraction of the chemical composition of the aluminum-clad steel wire is: C: 0.70-0.74%, Si: 0.10-0.30%, Mn: 0.5-0.7%, S≤ 0.025%, P≤0.020%, Cr: ≤0.10%, Ni: ≤0.10%, and the rest are Fe and unavoidable impurity elements; the specification of the aluminum clad steel wire is Φ2mm, tensile strength ≥1900MPa, 1% elongation Stress ≥ 1590MPa, at the same time, its elongation after breaking is greater than 0.9%, and the torsion is greater than 20 times.

[0035] The manufacturing method for 14AC-1825MPa high-strength aluminum-clad steel wire includes the following procedures,

[0036] Step 1: Select live wire rod;

[0037] In the step 1, Φ5.50mm is used, and ...

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Abstract

The invention belongs to the field of high-strength aluminum-clad steel wire production processes, and relates to a 14AC1825MPa-grade high-strength aluminum-clad steel wire and a manufacturing methodthereof. The aluminum-clad steel wire comprises the following chemical components in percentage by mass: 0.70-0.74% of C, 0.10-0.30% of Si, 0.5-0.7% of Mn, less than or equal to 0.025% of S, less thanor equal to 0.020% of P, less than or equal to 0.10% of Cr, less than or equal to 0.10% of Ni and the balance of Fe and inevitable impurity elements. The specification of the aluminum-clad steel wireis phi 2 mm, the tensile strength is larger than or equal to 1970 MPa, and the 1% elongation stress is larger than or equal to 1720 MPa. The process comprises the following steps: 1, selecting a heattreatment line; 2, coating; 3, performing aluminum-clad steel wiredrawing; 4, wiping; and 5, performing shaft returning.

Description

technical field [0001] The invention belongs to the field of high-strength aluminum-clad steel wire production technology, and relates to 14AC-1825MPa high-strength aluminum-clad steel wire and a manufacturing method thereof. Background technique [0002] Aluminum-clad steel wire is a widely used metal product. In addition to being used for overhead wires, ground wires, and OPGW, it can also be used in multiple applications such as guardrails, protective nets, splicing bars, and guard lines. The high-strength aluminum-clad steel wire The demand is growing rapidly. [0003] At present, with the development of the power industry and the needs of foreign markets, high-performance development is being carried out. The tensile strength of aluminum-clad steel wire required by the current national standard does not exceed 1590MPa, which cannot meet the high-carrying capacity requirements of some transmission line projects. Contents of the invention [0004] The purpose of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04C22C38/02C22C38/04C22C38/18C22C38/40
CPCB21C37/047C22C38/02C22C38/04C22C38/18C22C38/40
Inventor 王文喜吕国春张连魁朱铁樑王莉王鸿利
Owner 天津市新天钢中兴盛达有限公司
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