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Aluminium manganess composite deoxidized alloy block for deoxidized contained manganess aluminium and its production technology

A technology for composite deoxidation and production process, which is applied to the field of aluminum-manganese composite deoxidized alloyed blocks for manganese-containing aluminum deoxidized steel, and can solve the problems of low density, many non-metallic impurities, and prolonged deoxidation time.

Inactive Publication Date: 2005-06-08
张锡昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of smelting, iron and steel enterprises usually use single aluminum, silicon, and manganese as deoxidizers to deoxidize molten steel. Due to the low density of aluminum, the inclusions in molten steel are not easy to float up, and the non-metallic impurities in the smelted steel Many, poor steel quality, low recovery rate of aluminum
The Chinese patent application number is "ZL02115909.2", the publication number is CN1394967A, and the patent name is "pure aluminum-iron composite deoxidizer and its production method". However, for steel types with strict quality requirements, the addition of low-carbon steel will not be conducive to improving the quality of molten steel; the increase in aluminum recovery is only a superficial phenomenon, and the aluminum entering the molten steel will also reduce the oxidation in the slag. substances, prolonging the deoxidation time is not conducive to improving the quality of molten steel

Method used

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Examples

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Effect test

Embodiment 1

[0012] An aluminum-manganese composite deoxidation alloy block for manganese-aluminum deoxidized steel, which comprises the following components in the weight ratio: 30% of aluminum and 70% of ferromanganese.

[0013] Its production process is:

[0014] a. Using aluminum furnace technology to melt high-purity aluminum into aluminum solution;

[0015] b. Cast the molten aluminum solution into a mold with a certain taper for molding, and quickly add preheated ferromanganese blocks of the same type as the smelted steel according to a certain mass ratio during the casting process.

[0016] c. Finally solidify to form aluminum-manganese composite deoxidized alloy block.

Embodiment 2

[0018] An aluminum-manganese composite deoxidation alloying block for manganese-aluminum deoxidized steel, which comprises the following components by weight ratio: 50% of aluminum and 50% of ferromanganese.

[0019] Its production technology is with embodiment 1.

Embodiment 3

[0021] An aluminum-manganese composite deoxidation alloying block for manganese-aluminum deoxidized steel, which comprises the following components by weight: 60% of aluminum and 40% of ferromanganese.

[0022] Its production technology is with embodiment 1.

[0023] Compared with the prior art, the aluminum-manganese composite deoxidation alloying block for manganese-aluminum deoxidized steel has the advantages of simple production process, can eliminate the adverse effect of low-carbon steel on molten steel quality, improve the utilization rate of aluminum and shorten the reaction time , so that the generated inclusions have enough time to float up, etc., therefore, it has good promotion and use value.

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Abstract

A composite deoxidizing Al-Mn alloy block for the deoxidized Mn-Al steel is prepared from Al and ferromanganese through smelting high-purity aluminium, pouring in a mould while adding preheated ferromanganese, and solidifying. Its advantages are high utilziation of aluminium.

Description

1. Technical field [0001] The invention relates to a deoxidized alloyed block for metallurgy, in particular to an aluminum-manganese composite deoxidized alloyed block for manganese-aluminum deoxidized steel. The invention also relates to the production process of the aluminum-manganese composite deoxidation alloy block for manganese-containing aluminum deoxidized steel. 2. Technical background [0002] In the process of smelting, iron and steel enterprises usually use a single aluminum, silicon, and manganese as deoxidizers to deoxidize molten steel. Due to the low density of aluminum, the inclusions in molten steel are not easy to float up, and the non-metallic impurities in the smelted steel Many, poor steel quality, low recovery rate of aluminum. The Chinese patent application number is "ZL02115909.2", the publication number is CN1394967A, and the patent name is "pure aluminum-iron composite deoxidizer and its production method". However, for steel types with strict qu...

Claims

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Application Information

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IPC IPC(8): C21C7/06C22C35/00
Inventor 张锡昌
Owner 张锡昌
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