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Corrosion-resisting prestress pipeline steel wire

A prestressed pipeline and corrosion-resistant technology, which is applied in the field of steel wire for corrosion-resistant prestressed pipelines, can solve problems such as complex environmental conditions of water pipelines, pipeline burst accidents, etc., to achieve safe and stable operation, prevent pipeline burst accidents, The effect of improving the ability to crack

Inactive Publication Date: 2017-06-27
辽宁通达建材实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Prestressed pipeline steel wire is used for prestressed steel cylinder concrete pipelines. During the process of pipeline water delivery, the pipeline has to bear 75% of the tensile strength of the tensile force, and the environmental conditions of the water pipeline are complex, so it is very easy for the pipeline to burst ACCIDENT

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The metal elements of the steel wire account for the percentage of the total weight: Cr0.15, V0.05%, Ni0.10%, Cu0.10%, C0.79%, Si0.12%, Mn0.60%, S≤0.025 , P≤0.025, and the rest is Fe.

[0015] The production process of the steel wire is the same as that of the existing SWRH82B steel wire.

Embodiment 2

[0017] The metal elements of the steel wire account for the percentage of the total weight: Cr0.25%, V0.07%, Ni0.35%, Cu0.28%, C0.81%, Si0.19%, Mn0.75%, S≤ 0.025, P≤0.025, and the rest is Fe.

[0018] The production process of the steel wire is the same as that of the existing SWRH82B steel wire.

Embodiment 3

[0020] The metal elements of the steel wire account for the percentage of the total weight: Cr0.35%, V0.09%, Ni0.70%, Cu0.41%, C0.82%, Si0.26%, Mn0.85%, S≤ 0.025, P≤0.025, and the rest is Fe.

[0021] The production process of the steel wire is the same as that of the existing SWRH82B steel wire.

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PUM

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Abstract

The invention relates to a corrosion-resisting prestress pipeline steel wire. The corrosion-resisting prestress pipeline steel wire is invented for mainly solving the problem that a current pipeline steel wire is broken due to stress corrosion cracking. The steel wire comprises metal elements including, by total weight percent, 0.15%-0.50% of Cr, 0.05%-0.10% of V, 0.10%-1.00% of Ni, 0.10%-0.50% of Cu, 0.79%-0.83% of C, 0.12%-0.32% of Si, 0.60%-0.90% of Mn, smaller than or equal to 0.025% of S, smaller than or equal to 0.025% of P and the balance Fe. The steel wire production technology is the same as the existing SWRH82B steel wire production technology. The corrosion-resisting prestress pipeline steel wire has the beneficial effect that the corrosion resisting capability of the steel wire is improved.

Description

[0001] Technical field: [0002] The invention relates to a steel wire for corrosion-resistant prestressed pipelines. [0003] Background technique: [0004] Prestressed pipeline steel wire is used for prestressed steel cylinder concrete pipelines. During the process of pipeline water delivery, the pipeline has to bear 75% of the tensile strength of the tensile force, and the environmental conditions of the water pipeline are complex, and the pipe burst is very easy to occur. ACCIDENT. Since the prestressed pipeline steel wire is the main load-carrying material of the pipeline, all pipe burst accidents are caused by broken pipeline steel wires, and the current broken steel wires of pipelines are all caused by stress corrosion cracking. [0005] Invention content: [0006] The technical problem to be solved by the present invention is to provide a corrosion-resistant steel wire for prestressed pipelines that can improve the corrosion resistance of the steel wires and prevent p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/46C22C38/42C22C38/02C22C38/04
CPCC22C38/46C22C38/02C22C38/04C22C38/42
Inventor 杨桂瑜周宁张树军赵振伟常玉龙
Owner 辽宁通达建材实业有限公司
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