Method for producing aluminum alloy ingot

A technology of an aluminum alloy ingot and a production method, which is applied in the field of aluminum alloy ingot production, can solve the problems of aluminum alloy flat ingot with high impurity content and low product yield, and achieves the effect of reducing slag hanging on the furnace wall, low impurity content and broad prospects.

Inactive Publication Date: 2016-03-30
惠州卫生职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current aluminum alloy ingot production method has the problems of high impurity content and low yield of aluminum alloy flat ingot products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for producing an aluminum alloy ingot, the mass percentage of the aluminum alloy ingot is 0.20% for Si, 0.38% for Fe, 0.17% for Cu, 0.89% for Mn, 1.23% for Mg, 0.08% for Zn, and 0.090% for Ti %, the balance is Al, comprising the steps:

[0032] (1) Preheating

[0033] Preheat the melting furnace before using it, and the preheating time is 30 minutes;

[0034] (2) Ingredients

[0035] According to the chemical composition of aluminum alloy ingots, the dosage of various ingredients is accurately calculated, and the electrolytic primary aluminum liquid is carried into the forehearth of the smelting furnace through the siphon tube, and then transferred from the forehearth into the smelting furnace, and then compounded by feeding and slag removal Different master alloys are added to the car to form electrolytic aluminum liquid, and the feeding temperature is 740°C;

[0036] (3) stirring

[0037] After the batching is completed, close the furnace door, raise the ...

Embodiment 2

[0051] A method for producing an aluminum alloy ingot, the mass percentage of the aluminum alloy ingot is 0.21% for Si, 0.40% for Fe, 0.175% for Cu, 0.90% for Mn, 1.24% for Mg, 0.09% for Zn, and 0.094% for Ti %, the balance is Al, comprising the steps:

[0052] (1) Preheating

[0053] Preheat the melting furnace before using it, and the preheating time is 40 minutes;

[0054] (2) Ingredients

[0055] According to the chemical composition of aluminum alloy ingots, the dosage of various ingredients is accurately calculated, and the electrolytic primary aluminum liquid is carried into the forehearth of the smelting furnace through the siphon tube, and then transferred from the forehearth into the smelting furnace, and then compounded by feeding and slag removal Add different master alloys to the car to form electrolytic aluminum liquid, and the temperature of feeding is 760°C;

[0056] (3) stirring

[0057] After the batching is completed, close the furnace door, raise the te...

Embodiment 3

[0071] A method for producing an aluminum alloy ingot, the mass percentage of the aluminum alloy ingot is 0.22% for Si, 0.42% for Fe, 0.18% for Cu, 0.91% for Mn, 1.25% for Mg, 0.10% for Zn, and 0.098% for Ti %, the balance is Al, comprising the steps:

[0072] (1) Preheating

[0073] Preheat the melting furnace before using it, and the preheating time is 50 minutes;

[0074] (2) Ingredients

[0075] According to the chemical composition of aluminum alloy ingots, the dosage of various ingredients is accurately calculated, and the electrolytic primary aluminum liquid is carried into the forehearth of the smelting furnace through the siphon tube, and then transferred from the forehearth into the smelting furnace, and then compounded by feeding and slag removal Different master alloys are added to the car to form electrolytic aluminum liquid, and the feeding temperature is 780°C;

[0076] (3) stirring

[0077] After the batching is completed, close the furnace door, raise the ...

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PUM

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Abstract

The invention discloses a method for producing an aluminum alloy ingot. A smelting furnace is preheated before being used, reaction time can be shortened, and the phenomenon that materials do not fully react can be avoided; a powdery dreg remover is scattered into the surface of melt, Al2O3 included slag brought from an electrolytic cell can be preliminarily removed, and furnace wall hanging slag can be reduced; coating painting treatment is carried out through a launder, and it is ensured that a launder lining is completely dry before the launder is used; a gas refining system in a heat preservation furnace is started, H2 and oxide inclusions in the aluminum melt can be fully removed, and meanwhile impurities Na can be removed well; and the launder, a sprue, the lining, a coating and seams are inspected while pretreatment so as to guarantee that molten aluminum can be injected into the heat preservation furnace fast and stably.

Description

technical field [0001] The invention belongs to the field of aluminum alloy ingot production, and more specifically, the invention relates to a production method of aluminum alloy ingot. Background technique [0002] Aluminum alloy ingots are made of pure aluminum and recycled aluminum, and other elements are added according to international standards or special requirements, such as: silicon (Si), copper (Cu), magnesium (Mg), iron (Fe), to improve the castability of pure aluminum , Alloys formulated from chemical and physical deficiencies. It is suitable for casting and can make castings have good performance. The current aluminum alloy ingot production method has the problems of high impurity content and low yield of aluminum alloy flat ingot products. Contents of the invention [0003] The problem to be solved by the present invention is to provide a method for producing an aluminum alloy ingot. [0004] In order to achieve the above object, the technical scheme that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/06C22C1/03
CPCC22C21/08C22C1/026C22C1/03C22C1/06
Inventor 李莉玲
Owner 惠州卫生职业技术学院
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