Modified 6063T6 aluminum alloy and processing method thereof

A processing method and aluminum alloy technology, applied in the field of aluminum alloy processing, can solve the problems of low strength, elongation, corrosion resistance, low strength industrial profiles, high water and electricity costs, etc., achieve high elongation, reduce quenching sensitivity, and save costs Effect

Active Publication Date: 2019-03-08
湖南海铝汽车工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] 6063T5 and T6 aluminum alloys are widely used in the field of building doors, windows, and curtain walls because of their low-to-medium strength, good elongation, corrosion resistance, and easy processing. Moreover, their production processes are relatively mature, and they can occupy an important position in aluminum profile enterprises. The production ratio is more than 80%, but it is rarely used in industrial profiles because of its low strength
This design improves the mechanical properties of aluminum alloy profiles, and realizes the synchronous improvement of its elongation and strength. However, this invention not only needs to install a water mist cooling device, but also the cost of raw materials is about 200-400 yuan / ton higher. The cost of water and electricity is 100-200 yuan / ton higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The processing method of 6063T6 improved aluminum alloy comprises the following steps:

[0036] (1) Heat the raw material aluminum ingot to 730°C to melt to obtain molten aluminum;

[0037] (2) Remove scum on the surface of molten aluminum, improve the chemical composition of aluminum alloy according to 6063T6: Si 0.45%, Mg 0.68%, Cu0.05%, Fe 0.10%, Mn 0.05%, Cr 0.05%, Zn 0.003%, Ti 0.05 %, the balance is the standard of Al to adjust the content of alloying elements in the molten aluminum, and refining and standing;

[0038] (3) Filter the molten aluminum after standing, and then cast it while cooling at 28°C for 7 minutes to obtain an aluminum rod with a diameter of 228mm;

[0039] (4) After preheating the aluminum rod at a temperature of 510°C for 3 hours, extrude it at an extrusion speed of 10m / min and at a temperature of 520°C at the discharge port. Utilizing the high-temperature solid solution effect during the extrusion molding process, through The cooling syste...

Embodiment 2

[0042] The processing method of 6063T6 improved aluminum alloy comprises the following steps:

[0043] (1) Heat the raw material aluminum ingot to 720°C to melt to obtain molten aluminum;

[0044](2) Remove scum on the surface of molten aluminum and improve the chemical composition of aluminum alloy according to 6063T6: Si 0.48%, Mg 0.66%, Cu0.08%, Fe 0.15%, Mn 0.03%, Cr 0.06%, Zn 0.008%, Ti 0.03 %, the balance is the standard of Al to adjust the content of alloying elements in the molten aluminum, and refining and standing;

[0045] (3) Filter the molten aluminum after standing, and then cast it while cooling with water at a temperature of 30°C for 60 minutes to obtain an aluminum rod with a diameter of 152mm;

[0046] (4) After preheating the aluminum rod at a temperature of 520°C for 4 hours, extrude it at an extrusion speed of 15m / min and at a temperature of 530°C at the discharge port. Utilizing the high temperature solid solution effect in the extrusion molding process,...

Embodiment 3

[0049] The processing method of 6063T6 improved aluminum alloy comprises the following steps:

[0050] (1) Heat the raw material aluminum ingot to 740°C to melt to obtain molten aluminum;

[0051] (2) Remove scum on the surface of molten aluminum and improve the chemical composition of aluminum alloy according to 6063T6: Si 0.46%, Mg 0.65%, Cu0.10%, Fe 0.20%, Mn 0.08%, Cr 0.02%, Zn 0.01%, Ti 0.08 %, the balance is the standard of Al to adjust the content of alloying elements in the molten aluminum, and refining and standing;

[0052] (3) Filter the molten aluminum after standing, and then cast it while cooling with water at a temperature of 31°C for 65 minutes to obtain an aluminum rod with a diameter of 180mm;

[0053] (4) After preheating the aluminum rod at a temperature of 505°C for 5 hours, extrude it at an extrusion speed of 20m / min and at a temperature of 520°C at the discharge port. Utilizing the high-temperature solid-solution effect in the extrusion molding process,...

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Abstract

The invention discloses a modified 6063T6 aluminum alloy and a processing method thereof. The total weight of the aluminum alloy is improved, and the modified aluminum alloy is prepared from the following chemical components: 0.45-0.50% of Si, 0.65-0.70% of Mg, 0.02-0.10% of Cu, less than or equal to 0.23% of Fe, less than 0.10% of Mn, less than 0.10% of Cr, less than 0.01% of Zn, less than 0.1% of Ti, and the balance Al. The modified 6063T6 aluminum alloy has high strength, high hardness and high elongation, has the mechanical property reaching 6061T6 standard, and can replace 6061T6 aluminumalloy, thereby reducing the production cost.

Description

technical field [0001] The invention relates to the field of aluminum alloy processing, in particular to a 6063T6 improved aluminum alloy and a processing method thereof. Background technique [0002] 6063T5 and T6 aluminum alloys are widely used in the field of building doors, windows, and curtain walls because of their low-to-medium strength, good elongation, corrosion resistance, and easy processing. Moreover, their production processes are relatively mature, and they can occupy an important position in aluminum profile enterprises. The production ratio is more than 80%, but it is rarely used in industrial profiles because of its low strength. Therefore, customers of industrial profiles generally choose 6061T6 or 6082T6 alloys with higher strength, but the production cost and processing cost of 6061 aluminum alloy are higher than that of 6063 aluminum alloy. Therefore, how to make 6063 alloy profiles meet the mechanical performance standards of 6061 alloy profiles is a b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/02C22F1/047
CPCC22C1/026C22C21/08C22F1/002C22F1/047
Inventor 周芳坤贺再林肖孝未李江峰谢国军
Owner 湖南海铝汽车工业有限公司
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