A method for effectively improving the utilization rate of casting and rolling rolls in aluminum alloy production

By optimizing the design and surface treatment of casting rolls, the problem of low utilization rate of casting rolls in aluminum alloy production is solved, the efficient use of casting rolls and the quality assurance of aluminum alloy billets is achieved, and the production cost is reduced.

CN116000255BActive Publication Date: 2025-08-05SHANDONG DELI ALUMINIUM TECH CO LTD
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Patent Information

Application Number
CN202310046772.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-31
Publication Date
2025-08-05
Estimated Expiration
2043-01-31

AI Technical Summary

Technical Problem

In the existing aluminum alloy production, the utilization rate of cast rolls is low, resulting in increased production costs, and defects such as plate shape unstable during the grinding process, resulting in advance scrapping of the rolls.

Method used

By optimizing the design and surface treatment of casting rolls, including adjusting the roll diameter, convexity and casting rolling area length, and spraying with nano-silicon carbide, nano-tungsten disulfide and 1-butyl-3 methylimidazole hexafluorophosphate treatment, the service life of casting rolls and the quality of aluminum alloy billets are improved.

Benefits of technology

The casting rolls were successfully used to the roll diameter of 950mm, which significantly improved the use cycle of casting rolls, reduced production costs, and ensured the quality of aluminum alloy billets, improving the efficiency and economicality of aluminum alloy production.

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Abstract

The present invention discloses a method for effectively improving the utilization rate of casting rolls in aluminum alloy production. The method comprises the following steps: the aluminum melt used in aluminum alloy production has a hydrogen content of ≤0.10 mL / 100 g; the casting roll is a core component of the casting mill, and has a roll diameter of ≤960 mm, a crown of ≤0.30 mm, and a casting zone length of 58 to 60 mm; the casting mill also includes a casting nozzle, the nozzle outlet of which is positioned between the casting rolls. The casting nozzle comprises a front zone, a middle zone, and a rear zone. The front zone is a flat lip zone that gradually narrows forward; the rear zone is 50 mm wide; and the middle zone is divided into several channels, wherein the width of the middle channel is 17 mm, and the widths of the channels on both sides increase by 5 mm. While ensuring that the quality of the aluminum alloy billet meets the standard, the present invention successfully increases the diameter of the casting roll to 950 mm, significantly improving the service life of the casting roll and reducing production costs.
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