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Aluminium magnesium ferroalloy for molten steel deoxidization desulfuration and alloying and preparation method thereof

An alloying and ferroalloy technology, applied in the field of alloys, can solve problems such as power consumption, environment, pollution, etc., and achieve the effects of smooth surface quality, resource saving, and stable alloy composition.

Inactive Publication Date: 2008-03-05
赵宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While consuming a large amount of electric energy, it has caused serious pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] 57 kilograms of metal aluminum powder, 5 kilograms of metal magnesium powder, and 38.5 kilograms of scrap steel particles are poured into the mold after stirring, and a cylindrical aluminum-magnesium-iron alloy with a diameter of 50 mm and a height of 40 mm is made after pressure processing. Its chemical composition (weight percent) is:

[0018] Aluminum: 56.8.

[0019] Magnesium: 4.8.

[0020] Iron: surplus.

[0021] Sulfur: 0.01.

[0022] Phosphorus: 0.01.

[0023] Carbon: 0.3.

[0024] Silicon: 0.16.

[0025] Use this alloy for SS 400 The steel is tested, and the result of sampling by LF furnace: 0.040% of acid-soluble aluminum in steel meets the standard requirement (acid-soluble aluminum in steel standard stipulates 0.02%-0.07%).

[0026] This alloy is suitable for deoxidation, desulfurization and alloying of steels such as automobiles, household appliances, engineering machinery, heavy rails, boats, military industry and ultra-low carbon bainite.

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Abstract

The present invention discloses one kind of Al-Mg-Fe alloy for deoxidizing and desulfurizing molten steel. The Al-Mg-Fe alloy is produced through special pressure working, rather than smelting in a common induction furnace. It is one kind of energy-saving high purity alloy with alloy recovering rate as high as 100 %, no pollution and capacity of lowering steel deoxidizing and desulfurizing cost. It is suitable for deoxidizing and desulfurizing molten steel for making different steel products.

Description

technical field [0001] The invention relates to an alloy, especially an aluminum-magnesium-iron alloy used for deoxidation, desulfurization and alloying of molten steel and a preparation method thereof. Background technique [0002] At present, the iron alloys used in steelmaking deoxidation, such as: Al-Fe, Al-Mn-Fe, Al-Mn-Ti-Fe, Al-Mg-Fe, Al-Mg-Ca-Fe, Si-Al-Fe, Si-Al-Ba-Ca-Sr-Fe, etc., are all induction furnaces. Produced by submerged arc furnace. While consuming a large amount of electric energy, it has caused serious pollution to the environment. [0003] Aiming at this technical shortcoming, the present invention develops an aluminum-magnesium-iron alloy for deoxidation, desulfurization and alloying of molten steel provided by a pressure processing method without using an induction furnace. Contents of the invention [0004] The present invention is achieved in that its chemical composition (percentage by weight) is: [0005] Aluminum: 35-70. [0006] Magnesium: 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/06C21C7/00B22F3/02
Inventor 赵宇
Owner 赵宇
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