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Wrought aluminum alloy for thin-wall architectural section

A technology of deformed aluminum alloy and construction, which is applied in the field of deformed aluminum alloy to achieve the effect of good formability

Inactive Publication Date: 2009-09-30
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Embodiment 1

[0010] Embodiment 1: Alloy components and their weight fractions are: silicon: 0.35; magnesium: 0.45; rare earth elements: 0.20; iron: 0.27; copper: ≤0.05; manganese: ≤0.05, and the rest is aluminum. The production process is as follows:

[0011] a. Use raw materials such as industrial-grade double-zero aluminum ingot (Al99.7%), aluminum-silicon intermediate alloy, and industrial-grade magnesium ingot (grade 1) to load the furnace according to the above formula, with a batching weight of 9kg, and use a well-type resistance furnace for smelting. Melting is carried out at a temperature of 780°C. Stir the melt, remove slag, and cover it; add refining agent for spray refining, cover it and add magnesium ingots according to the formula by immersion in a bell jar, after melting, remove slag and cover again, keep it still for 20 minutes, and the temperature rises to 740 In the temperature of ℃, it is poured into an ingot of φ160×350 for later use.

[0012] b. Extruding and heat-tre...

Embodiment 2

[0014] Embodiment 2: Alloy components and their weight fractions are: silicon: 0.374; magnesium: 0.482; rare earth elements: 0.215; iron: 0.281; copper: ≤0.0234; manganese: ≤0.0252, and the rest is aluminum. The production process is as follows:

[0015] a. Use industrial-grade double-zero aluminum ingots, aluminum-silicon intermediate alloys, and industrial-grade magnesium ingots (first-grade) as raw materials to load the furnace according to the above formula. The weight of the ingredients is 20,000kg. It is smelted in an industrial flame reverberatory furnace at a temperature of 780°C. melt. Stir the melt, remove slag, and cover it; add refining agent for spray refining, cover it and add magnesium ingots according to the formula by immersion in a bell jar, after melting, remove slag and cover again, keep it still for 20 minutes, and the temperature rises to 740 Continuous casting at a temperature of ℃, and then cut into ingots of φ150×450 for later use.

[0016] b. Extrud...

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Abstract

The invention aims to provide a wrought aluminum alloy material for thin-wall architectural section and a method for preparing the same so as to meet the requirements of the thin-wall architectural section on the wrought aluminum alloy. The wrought aluminum alloy material for the thin-wall architectural section is characterized by comprising the following components in weight proportion: 0.30 to 0.40 of silicon, 0.40 to 0.50 of magnesium, 0.10 to 0.30 of rare earth elements, 0.25 to 0.35 of iron, less than or equal to 0.05 of copper, less than or equal to 0.05 of manganese, and the balance of aluminum. The content of other impurities meet the present standards of architectural materials. The wrought aluminum alloy for the thin-wall architectural section has the characteristics that the rare earth elements are added in a mode of 10 percent of rare earth element-Al intermediate alloy. The wrought aluminum alloy material has good forming property on thin-wall special section, and the mechanical property of the wrought aluminum alloy material meets the requirement.

Description

technical field [0001] The invention relates to a deformed aluminum alloy for thin-walled building profiles, which belongs to the technical field of non-ferrous alloy material formula and processing technology. Background technique [0002] With the widening of the application of deformed aluminum alloys in construction, decoration, automobile, aviation, electronics and other fields, there are higher requirements for the deformed strength performance, corrosion resistance performance and oxidation coloring performance. However, at present, in the production of deformed aluminum alloys, there are still precipitates such as coarse grain structure and feather structure in melting and casting, and welding lines are easy to appear in the extrusion process, thereby increasing the cost of the mold and affecting the surface quality of the product; when the profile is thick , prone to product deformation and material composition segregation, low mechanical properties; unstable oxide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/06C22C1/03C22F1/047
Inventor 王均熊计周先锋杨启平范洪远向廷生钟宇
Owner SICHUAN UNIV
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