Preparation method for producing ferroaluminium through flushed mixing of molten steel and aluminum ingot

Abstract

The invention relates to a method for preparing an aluminum-iron alloy. A method for preparing aluminum-iron alloys produced by pouring molten steel into aluminum ingots, comprising the following steps of preparing steel scrap containing 35%-70% of aluminum and the balance being iron; first adding fluorite blocks to the bottom of the intermediate frequency furnace, adding 2% of the total amount of scrap steel / 3, measure temperature after melting; when the furnace temperature reaches 1550°C-1650°C, power off, add slag polymer to remove slag; after removing all surface slag, add remaining scrap steel to heat up, measure temperature after melting, furnace When the temperature reaches 1650°C-1680°C, the power is cut off, and the slag on the surface is removed from the furnace by adding a slag polymer; the aluminum ingots are baked in the ladle to 600°C; After the aluminum ingots are stirred to completely melt the aluminum ingots; the ladle is poured twice, the slag agent is sprinkled on the surface of the alloy liquid, and the surface is stirred to remove the surface slag; the casting ladle is lifted to the automatic tilting casting platform for automatic casting, and the aluminum-iron alloy is completed preparation. The preparation method provided by the invention has simple process, easy implementation and low production cost.

Description

technical field [0001] The invention belongs to the field of aluminum-iron alloy manufacture, and in particular relates to a preparation method of aluminum-iron alloy. Background technique [0002] Existing methods for preparing aluminum-iron alloys have high production costs and complex processes. For example, the publication number is CN105671412A, and the application date is April 1, 2016. The invention patent titled "Production Process of Aluminum-Fe Alloys for Steelmaking Deoxidation" discloses an aluminum The production process of ferroalloy requires smelting first, then blowing argon in molten aluminum and iron, and finally casting aluminum and iron. These three steps are very complicated, especially the smelting process. It can be seen from this that the process is complicated and the production cost is high. [0003] There is still a problem in the aluminum-iron alloy manufactured by the existing technology, when the aluminum-iron alloy product is placed in the atm...

AI Technical Summary

Problems solved by technology

As a result, it loses its practicability and makes aluminum-iron alloys unusable