Aluminum alloy strip assembly for umbrella framework and machining technique thereof

An aluminum alloy strip and processing technology technology, which is applied in the field of aluminum alloy strip material assembly and processing technology for umbrella skeleton, can solve the problem of low tensile strength, poor 180° bending effect, and can not meet the production of high-grade umbrella skeleton. Use and other problems to achieve the effect of excellent mechanical properties and short process flow

Inactive Publication Date: 2009-07-08
中铝河南铝业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to defects such as low tensile strength and poor 180° bending

Method used

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  • Aluminum alloy strip assembly for umbrella framework and machining technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 5052H38-0.49×1200mm:

[0030] Melting and casting: Firstly, batching according to weight percentage: Fe: ≤0.35, Si ≤ 0.25, Cu: ≤0.1, Mn: ≤0.1, Mg: 2.3~2.7, Zn: 0.1, Cr: 0.15~0.25, other impurities in total ≤0.15% , the balance is Al; the sum of each component is 100%; the ingredients are smelted in a smelting furnace, and then the chemical composition is tested before being cast into an ingot;

[0031] Face milling: the ingot is milled with a milling machine, the milling amount of the large face of the ingot is 8mm, and the milling amount of the side is 5mm. It is necessary to mill out all kinds of metallurgical defects that affect the subsequent production and the final use performance of the product.

[0032] Heating: Use a heating furnace to heat the milled billet. After the furnace temperature rises to 500-560°C, it turns to a constant temperature and heat preservation: 4-6h. After the billet temperature rises to 450-500°C, the furnace gas drops to 500-530°C. Keep...

Embodiment 2

[0043] 5052H38-0.69×1200mm

[0044] Melting and casting: Firstly, batching according to weight percentage: Fe: ≤0.35, Si≤0.25, Cu: ≤0.1, Mn: ≤0.1, Mg: 2.3-2.7, Zn: 0.1, Cr: 0.15-0.25, other impurities in total ≤0.15% , the balance is Al; the sum of each component is 100%; the ingredients are smelted in a smelting furnace, and then the chemical composition is tested before being cast into an ingot;

[0045] Face milling: the ingot is milled with a milling machine, the milling amount of the large face of the ingot is 12mm, and the milling amount of the side is 8mm. It is necessary to mill out all kinds of metallurgical defects that affect the subsequent production and the final use performance of the product.

[0046] Heating: Use a heating furnace to heat the milled billet. After the furnace temperature rises to 500-560°C, it turns to a constant temperature and heat preservation: 4-6h. After the billet temperature rises to 450-500°C, the furnace gas drops to 500-530°C. Keep war...

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Abstract

The invention provides an aluminum alloy strip assembly for the backbone of an umbrella and the technique for processing the same, and the aluminum alloy strip comprises the following components by weight: Fe less than or equal to 0.35%, Si less than or equal to 0.25%, Cu less than or equal to 0.1%, Mn less than or equal to 0.1%, Mg of 2.3-2.7%, Zn less than or equal to 0.1%, Cr of 0.15-0.25%, all the foreign matters less than or equal to 0.15% and Al of the rest; all the component percentage is 100%; the processing technique is characterized by processes of fusion casting, face milling, soakage, hot rolling, cold rough rolling, stretch-bending and aligning, cleaning and edge-cutting, finished product annealing and the like; the aluminum alloy strip assembly of the invention has characteristics of satisfying the material requirements of high-grade umbrella backbones, having good mechanical performances and a short process flow.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metal processing, and relates to an assembly of aluminum alloy strips for an umbrella frame and a processing technology thereof, which is produced by controlling chemical components and using hot-rolled blanks. Background technique [0002] As a disposable consumable, the umbrella frame has a large domestic market and stable demand. The requirements for the aluminum alloy strip used for the umbrella frame are: high tensile strength, no cracking during 180° stamping and bending, and uniform surface requirements. At present, domestic manufacturers widely use 3003, 3005, 3105 alloys to make umbrella frames. However, due to defects such as low tensile strength and poor 180° bending effect, it cannot meet the production and use of high-grade umbrella frames. Contents of the invention [0003] In order to solve the above-mentioned defects, the present invention provides an assembly of aluminum a...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22C21/08C22C1/02C22F1/047
Inventor 李新涛张海旭陈玉柱柴建胜赵剑峰陈祚启
Owner 中铝河南铝业有限公司
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