Preparation method of salt mist corrosion resistant steel-cored aluminum stranded wire

By using the prepared corrosion-resistant and anti-aging agents as an anti-corrosion paste in steel-cored aluminum stranded wire, the problem of insufficient corrosion resistance and aging resistance of steel-cored aluminum stranded wire in salt spray environment is solved, forming a dense anti-corrosion layer, providing electrochemical protection, and extending service life.

CN122245905APending Publication Date: 2026-06-19HEBEI YOUSHENG CABLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI YOUSHENG CABLE CO LTD
Filing Date
2026-03-27
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing steel-cored aluminum stranded wires have poor corrosion resistance and aging resistance in salt spray environments, especially in extreme environments where their anti-corrosion effect is insufficient, and they suffer from coating aging and structural loosening.

Method used

The corrosion-resistant agent and anti-aging agent are used as the main components of the anti-corrosion paste. By pre-treating and stranding the steel-cored aluminum stranded wire, a dense anti-corrosion layer is formed, which blocks the penetration of humid air and salt spray, and provides electrochemical protection at the contact point between the aluminum wire and the steel core.

Benefits of technology

It significantly improves the corrosion resistance and aging resistance of steel-cored aluminum stranded wire, extending its service life, especially enhancing the safety and durability of lines in coastal and heavily polluted areas.

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Abstract

This invention discloses a method for preparing salt spray corrosion resistant steel-cored aluminum stranded wire, belonging to the technical field of steel-cored aluminum stranded wire preparation. The method includes the following steps: Step 1: Treating the steel core wire and aluminum wire to obtain a pretreated steel core and pretreated aluminum wire; Step 2: Immersing the pretreated steel core in a plating solution, heating and reacting, then removing the steel core, washing, and drying to obtain a steel core with a plating layer; Step 3: Using the plating steel core as the center, stranding the pretreated aluminum wire around it in a first layer, filling the gap between the plating steel core and the first layer of aluminum wire with anti-corrosion paste, and then continuing to strand the outer layer of aluminum wire to obtain the salt spray corrosion resistant steel-cored aluminum stranded wire. The steel-cored aluminum stranded wire prepared by the above method exhibits excellent corrosion resistance and anti-aging properties.
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