High-temperature-resistant and high-conductivity steel for electrolytic aluminum anode steel claw and preparation method thereof

By controlling the chemical composition and microstructure of electrolytic aluminum anode steel claws, adding Cu and Mo elements, and combining hot rolling process, high-temperature resistant and highly conductive electrolytic aluminum anode steel claws were prepared. This solved the wear and corrosion problems of steel claws in high-temperature environments, improved service life and conductivity, and reduced costs.

CN119980067BActive Publication Date: 2025-12-05UNIV OF SCI & TECH BEIJING
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Patent Information

Application Number
CN202510385005.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2025-12-05
Estimated Expiration
2045-03-28

AI Technical Summary

Technical Problem

Existing electrolytic aluminum anode steel claws are prone to wear and fatigue damage under high temperature, high current density and electrochemical corrosion environment, resulting in short service life. In addition, the existing coating preparation is costly and uneven, affecting production efficiency and safety.

Method used

By controlling the chemical composition and microstructure, adding Cu and Mo elements to form a dense oxide film, and combining the heat preservation treatment in the soaking section before hot rolling with the control of the rolling reduction during the hot rolling process, a steel for high-temperature resistant and highly conductive electrolytic aluminum anode claws is prepared, avoiding the use of coatings.

Benefits of technology

It significantly improves the corrosion resistance and electrical conductivity of steel claws, extends service life, reduces production costs, and maintains stable performance in high-temperature environments.

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Abstract

The application provides a high-temperature-resistant and high-conductivity steel for electrolytic aluminum anode steel claws and a preparation method, and relates to the technical field of steel materials for electrolytic aluminum industry production. The application adds trace alloy elements, controls alloy elements and their proportions, and combines corresponding preparation processes to control the amounts of solid solution and precipitation, so that a new type of high-conductivity steel for electrolytic aluminum anode steel claws with room temperature and high-temperature performance is obtained. The application prepares the high-temperature-resistant and high-conductivity steel for electrolytic aluminum anode steel claws by adjusting and controlling the (Ti+Mo) / C ratio, adding Cu elements, selecting low-cost raw materials, carrying out heat soaking treatment before hot rolling, and controlling the rolling reduction stage during the hot rolling process. The method is simple and easy to operate, green and environmentally friendly, low in cost, short in process, high in efficiency, wide in application range, and beneficial to industrial large-scale production and popularization.
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