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Strongly corrosion-resistant stranded galvanized steel wire and manufacturing method thereof

A galvanized steel strand, corrosion-resistant technology, applied in textiles, papermaking, textile cables, etc., can solve a lot of manpower and material resources, economic losses and other problems, to prevent pollution, increase strength and toughness, and avoid rust effects

Inactive Publication Date: 2015-03-25
ROLLAS POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The replacement of cables requires a lot of manpower and material resources, causing huge economic losses, so it is imminent to study the corrosion of bridge cable systems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides a strong corrosion-resistant galvanized steel strand, the weight percentage of each component of which is:

[0031] C: 0.83%, Mn: 0.76%, Si: 0.09%, Cr: 0.53%, Mo: 0.16%, Ni: 0.41%, V: 0.015%, B: 0.003%, P: 0.015%, S: 0.012%, Cu: 0.17%, N: 0.005%, and the rest are Fe and unavoidable impurities.

[0032] This embodiment also provides a method for manufacturing a strong corrosion-resistant galvanized steel strand, the specific steps include: wire rod hydrochloric acid washing-water washing-high-pressure water washing-phosphating-water washing-saponification-drying-drawing-lead bath -Washing-pickling-washing-helping-galvanizing-twisting-stabilization treatment-packaging-warehousing;

[0033] The wire rod is pickled with hydrochloric acid: the wire rod is put into a hydrochloric acid pool with a mass fraction of 16% for pickling for 20min, and the iron oxide scale on the surface of the wire rod is removed;

[0034] The medium-temperature phosphatin...

Embodiment 2

[0043] This embodiment provides a strong corrosion-resistant galvanized steel strand, the weight percentage of each component of which is:

[0044] C: 0.85%, Mn: 0.78%, Si: 0.13%, Cr: 0.55%, Mo: 0.18%, Ni: 0.43%, V: 0.025%, B: 0.005%, P: 0.005%, S: 0.004%, Cu: 0.08%, N: 0.001%, and the rest are Fe and unavoidable impurities.

[0045] This embodiment also provides a method for manufacturing a strong corrosion-resistant galvanized steel strand, the specific steps include: wire rod hydrochloric acid washing-water washing-high-pressure water washing-phosphating-water washing-saponification-drying-drawing-lead bath -Washing-pickling-washing-helping-galvanizing-twisting-stabilization treatment-packaging-warehousing;

[0046] The wire rod is pickled with hydrochloric acid: the wire rod is put into a hydrochloric acid pool with a mass fraction of 18% and pickled for 15 minutes to remove the iron oxide scale on the surface of the wire rod;

[0047] The medium-temperature phosphating:...

Embodiment 3

[0056] This embodiment provides a strong corrosion-resistant galvanized steel strand, the weight percentage of each component of which is:

[0057] C: 0.84%, Mn: 0.77%, Si: 0.11%, Cr: 0.54%, Mo: 0.17%, Ni: 0.42%, V: 0.020%, B: 0.004%, P: 0.010%, S: 0.008%, Cu: 0.12%, N: 0.003%, and the rest are Fe and unavoidable impurities.

[0058] This embodiment also provides a method for manufacturing a strong corrosion-resistant galvanized steel strand, the specific steps include: wire rod hydrochloric acid washing-water washing-high-pressure water washing-phosphating-water washing-saponification-drying-drawing-lead bath -Washing-pickling-washing-helping-galvanizing-twisting-stabilization treatment-packaging-warehousing;

[0059] The wire rod is pickled with hydrochloric acid: the wire rod is put into a hydrochloric acid pool with a mass fraction of 17% for pickling for 18 min, and the iron oxide scale on the wire rod surface is removed;

[0060] The medium-temperature phosphating: put...

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PUM

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Abstract

The invention discloses a strongly corrosion-resistant stranded galvanized steel wire. The strongly corrosion-resistant stranded galvanized steel wire is prepared from the following components in percentage by weight: 0.83-0.85% of C, 0.76-0.78% of Mn, 0.09-0.13% of Si, 0.53-0.55% of Cr, 0.16-0.18% of Mo, 0.41-0.43% of Ni, 0.015-0.025% of V, 0.003-0.005% of B, less than or equal to 0.015% of P, less than or equal to 0.012% of S, less than or equal to 0.017% of Cu, less than or equal to 0.005% of N and the balance of Fe and inevitable impurities. The invention also discloses a manufacturing method of the strongly corrosion-resistant stranded galvanized steel wire; the strongly corrosion-resistant stranded galvanized steel wire is high in corrosion resistance and fatigue durability, high in wire steel purity, uniform in component and structure, and long in service life.

Description

technical field [0001] The invention belongs to the technical field of metal products, and relates to a strong corrosion-resistant galvanized steel strand and a manufacturing method thereof. Background technique [0002] Since the 1990s, my country has built more than a hundred cable bridges (such as: suspension bridges, cable-stayed bridges and arch suspension bridges), but most of these bridges are carried by double towers or multi-towers. The requirements for toughness, plasticity, bending resistance and fatigue resistance are not high, and the designed service life of the bridge is about 60-80 years. With the increasing air pollution, the durability of bridge cable systems began to appear. The degree and speed of cable corrosion of many cable bridges far exceeded expectations. Serious phenomena such as cable breakage occur. Even in order to ensure the safety of the bridge, the cables were replaced in advance. The replacement of cables requires a lot of manpower and mat...

Claims

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Application Information

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IPC IPC(8): C22C38/54B21C37/04D07B1/06
Inventor 姚圣法吴海洋
Owner ROLLAS POWER TECH CO LTD
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