Process for manufacturing aluminum alloy ingot

A production process and technology of aluminum alloy ingots, applied in the field of production process of aluminum alloy ingots, can solve the problems of difficult uniform stirring of elements, unable to ensure uniform dissolution of added elements, etc., to overcome casting cracks, improve the appearance of castings, The effect of improving impact toughness

Inactive Publication Date: 2014-12-31
WUXI GREAT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of production technology of aluminum alloy ingot, to solve the traditional production technology of aluminum alloy ingot mostly is to add elements such as Sr, Ti, B after the original ADC12 aluminum ingot is melted, because adopting concentrated melting furnace more It is difficult to keep the molten aluminum in the form of a holding furnace, etc., so that the added elements are added to the molten aluminum and stirred evenly, so that it is impossible to ensure that the added elements are uniformly dissolved in the molten aluminum and exert its material properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In this embodiment, a production process of an aluminum alloy ingot is characterized in that it includes the following steps:

[0028] a. Ingredients: mix according to the ratio requirements of each element of the product;

[0029] b. Melting: When the hearth of the smelting furnace is dark red, put the proportioned raw materials into the smelting furnace for smelting, and when the temperature of the molten aluminum in the smelting furnace rises to 650°C-750°C, use a permanent magnet aluminum water mixer to stir;

[0030] c. Adding silicon: when the temperature of the molten aluminum reaches 720°C to 740°C, take samples for testing, add a certain amount of metal silicon according to the testing results, and fully stir it with a permanent magnet aluminum water mixer to melt it;

[0031] d. Cooling: When the temperature of the molten aluminum after adding silicon rises to 780°C-820°C, add a cooling material, the cooling material is pure aluminum, so that the temperature o...

Embodiment 2

[0042] In this embodiment, a production process of an aluminum alloy ingot is characterized in that it includes the following steps:

[0043] a. Ingredients: mix according to the ratio requirements of each element of the product;

[0044] b. Melting: When the hearth of the smelting furnace is dark red, put the proportioned raw materials into the smelting furnace for smelting, and when the temperature of the molten aluminum in the smelting furnace rises to 650°C-750°C, use a permanent magnet aluminum water mixer to stir;

[0045] c. Adding silicon: when the temperature of the molten aluminum reaches 720°C to 740°C, take samples for testing, add a certain amount of metal silicon according to the testing results, and fully stir it with a permanent magnet aluminum water mixer to melt it;

[0046] d. Cooling: When the temperature of the molten aluminum after adding silicon rises to 780°C-820°C, add a cooling material, the cooling material is pure aluminum, so that the temperature o...

Embodiment 3

[0057] In this embodiment, a production process of an aluminum alloy ingot is characterized in that it includes the following steps:

[0058] a. Ingredients: mix according to the ratio requirements of each element of the product;

[0059] b. Melting: When the hearth of the smelting furnace is dark red, put the proportioned raw materials into the smelting furnace for smelting, and when the temperature of the molten aluminum in the smelting furnace rises to 650°C-750°C, use a permanent magnet aluminum water mixer to stir;

[0060] c. Adding silicon: when the temperature of the molten aluminum reaches 720°C to 740°C, take samples for testing, add a certain amount of metal silicon according to the testing results, and fully stir it with a permanent magnet aluminum water mixer to melt it;

[0061] d. Cooling: When the temperature of the molten aluminum after adding silicon rises to 780°C-820°C, add a cooling material, the cooling material is pure aluminum, so that the temperature o...

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Abstract

The invention discloses a process for manufacturing an aluminum alloy ingot, which is characterized by including the steps of a, proportioning raw materials according to the proportion of each element of the product, b, placing proportioned raw materials into a smelting furnace for smelting, c, sampling and assaying, and adding silicon metal according to the results of assay, d, adding a cooling material to reduce the temperature of an aluminum liquid, e, stirring for uniform composition, f, sampling and assaying, and adding aluminum strontium alloy, aluminum titanium boron alloy and nontoxic refining agent according to the results of assay, g, purification, refining and deaeration, h, still standing for 15 min to 25 min, i, drossing slags onto a slag car, j, sampling and assaying, and supplementing or diluting in case of incompliance with standard requirements on composition, k, filtering for improved cleanliness of the aluminum liquid, and l, casting a portable ingot. Ingots cast from the process have less cold laps and cracks, and are characterized by high tenacity and strength.

Description

technical field [0001] The invention relates to a production process of an aluminum alloy ingot, in particular to a production process of an aluminum alloy ingot for high pressure casting. Background technique [0002] Aluminum alloy is an extended product of pure aluminum. The alloy formed by adding certain elements to pure aluminum can also have high strength while maintaining the advantages of pure aluminum such as light weight, which makes its "specific strength" (the ratio of strength to specific gravity σb / ρ) is better than many alloy steels, becoming an ideal structural material, widely used in machinery manufacturing, transportation machinery, power machinery and aviation industry, etc., aircraft fuselage, skin, compressor, automobile engine, crankcase They are often made of aluminum alloy to reduce their weight. The welding of aluminum alloy instead of steel plate material can reduce the structural weight by more than 50%. [0003] The density of aluminum alloy is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/06C22C1/02C22C21/00
Inventor 王兴瑶陈刚
Owner WUXI GREAT TECH
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