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Aluminum base alloy for steelmaking and preparation method thereof

An aluminum-based alloy and aluminum-based aluminum-calcium-magnesium alloy technology, which is applied in the field of metallurgical materials, can solve the problems of high production cost, large burning loss in steelmaking, low utilization rate, etc. easy effect

Inactive Publication Date: 2014-10-08
谢廷声
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of alloy has high calcium content and high vapor pressure, so it has a large burning loss and low utilization rate when used in steelmaking.
[0005] The other type is high-purity aluminum-calcium alloy, aluminum-magnesium alloy, and aluminum-calcium-magnesium alloy. Impurities C, S,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Ratio of ingredients: 100kg of aluminum (Al98%), 20kg of reduced calcium (Ca96%), 5kg of metal magnesium (Mg99%), smelted in a furnace for 45 minutes, and then out of the furnace. Assay alloy composition: Al 75%, Ca 16%, Mg 4%. Impurities: C 0.3%, S 0.02%, P 0.01%, Si 1.5%, Fe 3.0%.

Embodiment 2

[0017] Ingredients ratio: aluminum ingot 100kg, reduced calcium 10kg, magnesium ingot 3kg. Remelting alloying composition: Al 85.2%, Ca 8.4%, Mg 2.5%. Impurities: C 0.3%, S 0.02%, P 0.01%, Si 1.2%, Fe 2.1%.

Embodiment 3

[0019] Ingredients ratio: aluminum ingot 100kg, electrolytic calcium 5kg, metal magnesium 2kg. Remelting alloy composition: Al 90.6%, Ca 4.4%, Mg 1.5%. Impurities: C 0.2%, S 0.02%, P 0.01%, Si 1.4%, Fe 1.8%. This alloy is suitable for making aluminum wire (wire rod). The alloy contains more than 5% magnesium, the hardness of the wire is high, and the wire feeding machine is difficult to use.

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PUM

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Abstract

The invention discloses an aluminum-based calcium-magnesium alloy for steelmaking. A preparation method of the aluminum-based calcium-magnesium alloy comprises the following step: by taking metals aluminum, calcium and magnesium as raw materials, preparing the aluminum-based calcium-magnesium alloy through a remelting process. The aluminum-based alloy is an aluminum-calcium-magnesium alloy in which aluminum serves as a principle component, calcium serves as an auxiliary material and the amount of magnesium is small. The alloy comprises the following components: 70-95 percent of aluminum and the balance of calcium, magnesium and inevitable impurities. According to the aluminum-calcium-magnesium alloy, magnesium and calcium are proportioned according to a certain ratio. The aluminum-based aluminum-calcium-magnesium alloy is used for steelmaking, and has a good deoxidization effect and an excellent desulfurization effect. The alloy is high in deoxidization speed in molten steel, the deoxidization product is low-melting-point calcium aluminate and is easy to float and remove, the fluidity of the molten steel and nozzle clogging are improved, and smooth continuous casting and rolling is guaranteed.

Description

technical field [0001] The invention relates to an aluminum-based alloy used for steelmaking and a preparation method thereof, belonging to metallurgical material technology. Background technique [0002] Aluminum, calcium, magnesium, etc. are strong deoxidizing and desulfurizing elements for steelmaking. It is a good deoxidizing and desulfurizing agent to make them into alloys for steelmaking. [0003] At present, there are many technical solutions for preparing aluminum-calcium-magnesium alloys. A class of iron-containing aluminum-calcium-magnesium alloys. Such as: aluminum-calcium-iron, aluminum-magnesium-iron, aluminum-calcium-magnesium-iron. This type of alloy contains iron in order to increase the specific gravity of the alloy. During production, due to the difference in melting point, the melting point of iron is above 1500°C, while the melting point and ignition point of aluminum, calcium, and magnesium are lower than 860°C and they burn, making it difficult to ...

Claims

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Application Information

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IPC IPC(8): C21C7/06C21C7/064C22C21/00C22C1/02C22B9/16
Inventor 谢廷声
Owner 谢廷声