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

A technology of aluminum-iron alloy punching and mixing aluminum ingots, which is applied in the field of aluminum-iron alloy manufacturing, can solve the problems of aluminum-iron alloys being unusable and losing practicability, and achieve the effects of low production cost, no pulverization, and improved recovery rate

Inactive Publication Date: 2017-10-20
江苏江南铁合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for preparing aluminum-iron alloys produced by pouring molten steel into aluminum ingots, comprising the following steps: 1. preparing steel scrap containing 35% aluminum and the balance being iron; / 3, measure the temperature after all the slag is melted; ③When the furnace temperature reaches 1550°C, turn off the power to heat, and add slag-aggregating agent to remove slag; When the furnace temperature reaches 1650°C, the power is cut off, and the slag on the surface is removed by adding slag polymer; ⑤At the same time as the above steps, the aluminum ingot is baked in the ladle to 600°C; ⑥The aluminum ingot is transported to the mouth of the intermediate frequency furnace, and the molten steel is connected to the outlet Redemption; ⑦The molten steel is mixed with the aluminum ingot and then stirred to completely melt the aluminum ingot; ⑧Ladle is poured twice, 1.1Kg slagging agent is sprinkled on the surface of the alloy liquid, and the surface is stirred to r...

Embodiment 2

[0023] A method for preparing aluminum-iron alloys produced by pouring molten steel into aluminum ingots, comprising the following steps: 1. preparing steel scrap containing 50% aluminum and the balance being iron; / 3, measure the temperature after the furnace is completely melted; ③When the furnace temperature reaches 1600℃, cut off the power and add slag polymer to remove the slag; When the furnace temperature reaches 1660℃, the power is cut off, and the slag on the surface is removed by adding slag polymer; ⑤In the same time as the above steps, the aluminum ingot is baked in the ladle to 600℃; ⑥The aluminum ingot is transported to the mouth of the intermediate frequency furnace, and the molten steel is connected to the outlet Redeeming; ⑦The molten steel is mixed with aluminum ingots and then stirred to completely melt the aluminum ingots; ⑧Ladles are poured twice, 1.36Kg of slagging agent is sprinkled on the surface of the alloy liquid, and the surface is stirred to remove ...

Embodiment 3

[0025] A method for preparing aluminum-iron alloys produced by pouring molten steel into aluminum ingots, comprising the following steps: 1. preparing steel scrap containing 70% aluminum and the balance being iron; / 3, measure the temperature after the furnace is completely melted; ③When the furnace temperature reaches 1650℃, cut off the power to heat, and add slag polymer to remove the slag; When the furnace temperature reaches 1680℃, the power is cut off, and the slag on the surface is removed by adding a slag polymer; ⑤In the same time as the above steps, the aluminum ingots are baked in the ladle to 600℃; Redeeming; ⑦The molten steel is mixed with aluminum ingots and then stirred to completely melt the aluminum ingots; ⑧Ladle is poured twice, 1.63Kg of slagging agent is sprinkled on the surface of the alloy liquid, and the surface is stirred to remove all surface slag; ⑨The casting ladle is hoisted to the automatic The pouring platform is tilted for automatic casting, and ...

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PUM

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Abstract

The invention relates to a preparation method of ferroaluminium. A preparation method for producing the ferroaluminium through flushed mixing of molten steel and an aluminum ingot comprises the following steps that steel scrap containing 35%-70% of aluminum and the balance iron is prepared; glowstone is firstly added into the bottom of an intermediate frequency furnace, 2 / 3 of the total amount of the steel scrap is added, and temperature measurement is carried out after complete fusion; when the furnace temperature reaches 1550 DEG C to 1650 DEG C, power is off, and a slag collector is added for slag fishing; after surface slag is completely fished out, the remaining steel scrap is added to be heated, temperature measurement is carried out after complete fusion, the power is off after the furnace temperature reaches 1650 DEG C to 1680 DEG C, a slag collector is added for completely fishing out the surface slag, and then furnace discharging is carried out; the aluminum ingot is baked in a ladle brick to 600 DEG C; the aluminum ingot is carried to an opening of the aluminum ingot is, and the furnace discharging position is connected with the molten steel for molten steel; stirring is carried out after flushed mixing of the molten steel and the aluminum ingot so as to enable the aluminum ingot to be completely fused; two times of ladle-to-ladle operation is carried out, a slag selecting agent is thrown to the alloy liquid level, surface stirring is carried out, and the surface slag is fished completely; a casting ladle is hoisted to an automatic turnover casting platform for automatic casting, and preparation of the ferroaluminium is completed. The preparation method is simple in process, easy to implement and low in 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03
CPCC22C21/00C22C1/026C22C1/03
Inventor 梅泽锋宋雪健章汉云
Owner 江苏江南铁合金有限公司
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