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Iron core aluminum-iron composite deoxidizing agent

A technology of composite deoxidizer and iron core aluminum, which is applied in the field of aluminum-iron composite deoxidizer, can solve the problems of poor deoxidation effect, refractory, easy oxidation and rust, etc. Effect

Inactive Publication Date: 2008-04-16
KUNMING IRON & STEEL GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of existing aluminum-iron alloy deoxidizers such as refractory, easy to oxidize and rust during transportation and storage, and poor deoxidation effect, the present invention provides an aluminum-iron iron core with good deoxidation effect, easy melting and no rust Compound deoxidizer

Method used

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  • Iron core aluminum-iron composite deoxidizing agent
  • Iron core aluminum-iron composite deoxidizing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Take the following aluminum and iron raw materials: 85 kg of aluminum ingots, 15 kg of iron filings, 35 kg of iron nuggets and iron pellets;

[0025] 2. Heat 85kg aluminum ingot to 750-900℃ to melt it into molten aluminum;

[0026] 3. Add 15 kg of iron filings to the above molten aluminum, continue to heat up to 1000-1200°C, so that the iron filings are completely melted in the molten aluminum, and stir evenly to obtain an aluminum-iron alloy liquid;

[0027] 4. Cast the aluminum-iron alloy liquid into a hexagonal trapezoidal mold, quickly add 35 kg of iron nuggets and iron particles into 100 kg of aluminum-iron alloy liquid, and make it completely immersed in the aluminum-iron alloy liquid;

[0028] 5. Demoulding after cooling and solidification to obtain an iron core aluminum-iron composite deoxidizer with a total weight of 135 kg.

Embodiment 2

[0030] 1. Take the following aluminum and iron raw materials: 95 kg of aluminum ingots, 5 kg of iron pellets, and 45 kg of iron bars;

[0031] 2. Heat 95kg aluminum ingot to 750-900℃ to melt it into molten aluminum;

[0032] 3. Add 5 kg of iron pellets to the above liquid aluminum, continue to heat up to 1000-1200°C, so that the iron pellets are completely melted in the molten aluminum, and stir evenly to obtain an aluminum-iron alloy liquid;

[0033] 4. Cast the aluminum-iron alloy liquid into a square trapezoidal mold, quickly add 45 kg of iron bars to 100 kg of aluminum-iron alloy liquid, and make it completely immersed in the aluminum-iron alloy liquid;

[0034] 5. Demoulding after cooling and solidification to obtain an iron core aluminum-iron composite deoxidizer with a total weight of 145 kg.

Embodiment 3

[0036] 1. Take the following aluminum and iron raw materials: 90 kg of aluminum ingots, 10 kg of iron wire, 40 kg of iron pellets and iron bars;

[0037] 2. Heat 90kg aluminum ingot to 750-900℃ to melt it into molten aluminum;

[0038] 3. Add 10 kg of iron wire to the above molten aluminum, continue to heat up to 1000-1200°C, so that the iron filings are completely melted in the molten aluminum, and stir evenly to obtain an aluminum-iron alloy liquid;

[0039] 4. Cast the aluminum-iron alloy liquid into a conical mold, quickly add 40 kg of iron pellets and iron bars to 100 kg of aluminum-iron alloy liquid, and completely immerse it in the aluminum-iron alloy liquid;

[0040] 5. Demoulding after cooling and solidification to obtain an iron core aluminum-iron composite deoxidizer with a total weight of 140 kg.

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Abstract

The composite aluminum-iron deoxidizing agent with iron core consists of Al 85-95 wt% and Fe 5-15 wt% and has one iron core accounting for 35-45 wt%. The composite aluminum-iron deoxidizing agent with iron core is superior to available aluminum deoxidizing agent and composite aluminum-iron deoxidizing agent, and has raised molten steel deoxidizing effect, capacity of forming easily floating oxide, lowered aluminum consumption, and capacity of raising steel quality and lowering steel producing cost.

Description

technical field [0001] The invention relates to an aluminum-iron composite deoxidizer, in particular to an iron core aluminum-iron composite deoxidizer, which belongs to the technical field of smelting. Background technique [0002] In the process of steelmaking, in order to remove oxygen from molten steel, it is often necessary to put deoxidizer into molten steel. Most of the deoxidizers used in the prior art are metal aluminum. Although the metal aluminum can remove the oxygen in the molten steel well, it cannot sink into the molten steel because of its light specific gravity, resulting in uneven deoxidation reaction. , thereby affecting the deoxidation effect of the molten steel, and at the same time, the metal aluminum floating on the surface of the steel water is burned at high temperature, which increases the burning loss of the metal aluminum, thereby increasing the cost of steelmaking due to time-consuming, electricity-consuming, and material-consuming. For this rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/06
Inventor 胡光华沈兰英黄向东李金柱
Owner KUNMING IRON & STEEL GRP CO LTD
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