Technology for producing alloy aluminum inside aluminum cell

Abstract

The invention discloses a technology for producing alloy aluminum inside an aluminum cell. In the aluminum electrolysis production process, a simple substance or a midbody or an alloy body of an alloying element A is added into molten aluminum in the aluminum cell in the mode of penetrating a dielectric layer, and meanwhile an oxide of an alloying element B is added into the molten aluminum in the mode of penetrating the dielectric layer, a simple substance of the alloying element is obtained from the oxide of the alloying element B under the reducing action of aluminum, the simple substance of the alloying element B and the simple substance or the midbody or the alloy body of the alloying element A are evenly dispersed into the molten aluminum at high temperature under the external magnetic stirring action, the molten aluminum is taken out for cooling to obtain alloy aluminum. According to the technology, the technical difficulties and technical defects in the prior art are overcome, melting in the large modern prebaking cell and melting in a self-baking cell can be achieved, stability and easy controllability of working of the cell are not affected, and high-quality alloy aluminum of various trademarks, varieties and batches can be organized and produced flexibly.

Description

Technical field [0001] The invention relates to a process for producing alloy aluminum, in particular to a process for producing alloy aluminum in an aluminum electrolytic cell. Background technique [0002] The most important production method of modern aluminum alloy is the melt blending method, and part of it is produced by electrolysis. The melting method is to melt the aluminum ingot in a reverberatory furnace or an intermediate frequency electric furnace, and add various aluminum alloy melting intermediates or various metal elements according to the required alloy aluminum composition requirements, and heat and stir for a long time. , Generally it takes 2 to 8 hours to integrate various alloying elements into molten aluminum. The main disadvantages are: [0003] 1. The melting temperature is generally controlled at about 750°C. The low temperature makes the alloy inadequately melted into the molten aluminum, and the dispersion of the alloy elements into the molten aluminum i...

AI Technical Summary

Problems solved by technology

The present invention overcomes the technical difficulties and technical defects in the above two methods, and can realize fusion production of aluminum alloys in modern large-scale prebaking electrolytic cells, and can also produce aluminum alloys in self-baking cells without affecting the electrolytic cell Work stability, ease of control, flexible organization and production of various grades, types, batches of high-quality aluminum alloys