A continuous casting and rolling process for producing 5005 aluminum-plastic strip blanks

Abstract

The invention relates to the aluminum processing industry, in particular to a continuous casting and rolling process for producing 5005 aluminum-plastic strip blanks. The invention includes a holding furnace, an aluminum melting furnace, an on-line refining device, a two-stage filter item, and a continuous casting and rolling unit used in the production method. The process method includes the following steps: 1) batching step; 2) furnace loading step; 3 ) melting and stirring steps; 4) slag removal, sampling and analysis steps; 5) degassing refining, standing, heat preservation steps; 6) online melt processing steps; 7) continuous casting and rolling steps; 8) coiling and shearing steps ;9) Check the steps. The advantages of the method of the present invention: due to the use of 80% electrolytic aluminum liquid in the production process, the burning loss of aluminum is reduced to below 15‰, and the unit consumption of natural gas is reduced to below 80Nm3 / tAl, which is similar to the production of 3005 aluminum-plastic strips by using aluminum ingots for remelting Compared with the casting and rolling method of the billet, the burning loss and energy consumption of aluminum are reduced by 50%; the finished product rate reaches more than 99%. The invention discloses a continuous casting and rolling process for producing 5005 aluminum-plastic strip blanks, which is suitable for domestic and foreign aluminum and aluminum alloy casting industries.

Description

technical field [0001] The invention relates to the aluminum processing industry, in particular to a continuous casting and rolling process for producing 5005 aluminum-plastic strip blanks. Background technique [0002] Domestic 5005 aluminum-plastic strips are generally cast-rolled billets, and the final rolled thickness is generally greater than 0.2mm. The production method of the casting billet is: let the molten aluminum pass through a set of devices to guide the "roll gap" formed between the two rolls, and after the forced cooling, crystallization and deformation of the two rolls, the thickness is 6mm ~ 8mm. of cast-rolled coils. During the casting and rolling process, the molten aluminum is crystallized by the rapid cooling of the two rolls in the narrow gap between the two rolls, and the solidified billet is rolled and deformed by the two rolls to a certain extent at the same time, and the obtained cast-rolled sheet The internal structure of the crystal belongs to t...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a dual-drive tilting type in view of the shortcomings of the current 5005 aluminum-plastic strip production method that the aluminum ingots for remelting need to be remelted, the burning loss of aluminum is relatively large, and the energy consumption is high. Continuous casting and rolling process for producing 5005 aluminum-plastic strip blanks on continuous casting and rolling machine

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