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Aluminum-manganese-magnesium-iron alloy for steelmaking deoxidation, desulfurization and alloying and production method

A magnesium-iron alloy and a production method technology, which are applied in the field of steelmaking and refining, can solve the problems of low magnesium yield, prone to powdering, etc. Effect

Inactive Publication Date: 2019-10-15
JIANGSU ZHENGDA FURNACE CHARGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing patent (application number 03133891.7) discloses an Al-Mn-Mg-Fe alloy, and proposes the production process and composition requirements of the Al-Mn-Mg ferroalloy. Pulverization phenomenon, at the same time, due to the use of metal magnesium, the yield of magnesium is very low

Method used

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Effect test

Embodiment 1

[0014] An aluminum-manganese-magnesium-iron alloy used for deoxidation, desulfurization and alloying in steelmaking, which contains Al: 31%, Mn: 29%, Mg: 3.5%, and the rest is Fe and unavoidable impurity elements. Among them, Al is introduced by metal aluminum, Mn is introduced by electrolytic manganese, and Mg is introduced by aluminum-magnesium alloy. Aluminum metal is introduced by aluminum ingot with Al≥95%, metal manganese is introduced by electrolytic manganese with Mn≥99%, and metal magnesium is introduced by aluminum-magnesium alloy with Mg≥20%.

[0015] Production method: Weigh the corresponding materials according to the determined specific composition, first put the scrap steel and electrolytic manganese into the intermediate frequency furnace, gradually add aluminum ingots after melting and removing slag, and finally add aluminum-magnesium alloy. Before adding the aluminum ingot, turn on the argon gas to realize the protective melting until the material is melted. ...

Embodiment 2

[0017] An aluminum-manganese-magnesium-iron alloy used for deoxidation, desulfurization and alloying in steelmaking, containing Al: 40%, Mn: 35%, Mg: 15% by weight percentage, and the rest is Fe and unavoidable impurity elements. Among them, Al is introduced by metal aluminum, Mn is introduced by electrolytic manganese, and Mg is introduced by aluminum-magnesium alloy. Aluminum metal is introduced by aluminum ingot with Al≥95%, metal manganese is introduced by electrolytic manganese with Mn≥99%, and metal magnesium is introduced by aluminum-magnesium alloy with Mg≥20%.

[0018] Production method: Weigh the corresponding materials according to the determined specific composition, first put the scrap steel and electrolytic manganese into the intermediate frequency furnace, gradually add aluminum ingots after melting and removing slag, and finally add aluminum-magnesium alloy. Before adding the aluminum ingot, turn on the argon gas to realize the protective melting until the mate...

Embodiment 3

[0020] An aluminum-manganese-magnesium-iron alloy used for deoxidation, desulfurization and alloying in steelmaking, which contains Al: 25%, Mn: 40%, Mg: 10%, and the rest is Fe and unavoidable impurity elements. Among them, Al is introduced by metal aluminum, Mn is introduced by electrolytic manganese, and Mg is introduced by aluminum-magnesium alloy. Aluminum metal is introduced by aluminum ingot with Al≥95%, metal manganese is introduced by electrolytic manganese with Mn≥99%, and metal magnesium is introduced by aluminum-magnesium alloy with Mg≥20%.

[0021] Production method: Weigh the corresponding materials according to the determined specific composition, first put the scrap steel and electrolytic manganese into the intermediate frequency furnace, gradually add aluminum ingots after melting and removing slag, and finally add aluminum-magnesium alloy. Before adding the aluminum ingot, turn on the argon gas to realize the protective melting until the material is melted. ...

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Abstract

The invention discloses an aluminum-manganese-magnesium-iron alloy for steelmaking deoxidation, desulfurization and alloying and a production method thereof. The aluminum-manganese-magnesium-iron alloy comprises the following components of, by weight, 20%-45% of Al, 5%-40% of Mn, 1%-15% of Mg and the balance Fe and inevitable impurity elements. The alloy is casted and formed through protected smelting in an intermediate frequency furnace by using metal iron, metal aluminum, electrolytic manganese or ferromanganese and aluminum-magnesium alloy, so that the problem of low metal yield is solved,and the problem of alloy pulverization is also solved.

Description

technical field [0001] The invention belongs to the technical field of steelmaking and refining, and relates to an aluminum-manganese-magnesium-iron alloy for steelmaking deoxidation, desulfurization and alloying and a production process. Background technique [0002] For a long time, metal aluminum has been the main deoxidizer for deep deoxidation in steelmaking. The use of aluminum ingots for deoxidation has the problem of low utilization of aluminum ingots. Therefore, the process of feeding aluminum wires has been developed. However, the process of feeding aluminum wires has a long feeding time and requires Special wire feeding equipment occupies the space of the small platform behind the furnace or the refining platform, which is not conducive to improving production efficiency and safe production. Later, the aluminum-iron deoxidation process is proposed and used, which basically solves the problem of low yield and occupying the platform behind the furnace and refining ...

Claims

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Application Information

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IPC IPC(8): C21C7/06C21C7/064C22C30/00
CPCC21C7/0006C21C7/06C21C7/064C22C21/00C22C22/00C22C30/00C22C38/002C22C38/04C22C38/06Y02P10/20
Inventor 汪波徐玉林钱明学孙锦荣夏建卫黄泽铭钱秀杰
Owner JIANGSU ZHENGDA FURNACE CHARGE
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