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Manufacture method of aluminum alloy sectional material for building formwork

A technology for aluminum alloy profiles and building formwork, which is applied to the on-site preparation of building components, building structure, and construction, etc., can solve the problems of low elongation after fracture and corrosion resistance, and achieve excellent comprehensive mechanical properties, good surface quality, Good formability

Active Publication Date: 2016-04-20
CHINA ZHONGWANG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide a method for manufacturing aluminum alloy profiles for building templates, which can solve the tensile strength, non-proportional elongation strength, elongation after fracture and The problem of low corrosion performance, at the same time, can improve production efficiency and reduce production costs. The prepared aluminum alloy profiles have the characteristics of high strength, less inclusion content, good surface quality, and excellent comprehensive mechanical properties.

Method used

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  • Manufacture method of aluminum alloy sectional material for building formwork
  • Manufacture method of aluminum alloy sectional material for building formwork
  • Manufacture method of aluminum alloy sectional material for building formwork

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specific Embodiment approach 1

[0027] like figure 1 As shown, a kind of manufacturing method of aluminum alloy profile for building formwork provided by the present invention is specifically prepared according to the following steps:

[0028] 1-Smelting, using 6005A alloy, according to the mass percentage of elements, Si: 0.65% ~ 0.7%, Mg: 0.5% ~ 0.6%, Fe: ≤0.2%, Cu: ≤0.2%, Mn: ≤0.25%, Cr: ≤0.15%, Ti: ≤0.05%, Zn: ≤0.05%, and the balance is Al to prepare ingredients, using gradient refining treatment technology, and put into dry In the smelting furnace, the aluminum alloy solution is obtained by smelting at a temperature of 730°C-40°C for 5h-7h; during this period, the stirring operation is carried out after 30-40min of feeding, which can improve the melting efficiency, reduce the smelting time, and improve production efficiency. Reduce element burning loss; and the use of gradient refining treatment technology can reduce element loss and improve the quality of aluminum alloy solution;

[0029] 2- Stand st...

specific Embodiment approach 2

[0040] The difference between this embodiment and the specific embodiment one is: in step 1, the mass percentages of elements are Si: 0.67%, Mg: 0.56%, Fe: 0.08%, Cu: 0.12%, Mn: 0.05%, Cr: 0.02 %, Ti: 0.03%, Zn: 0.02%, and the balance are Al to prepare ingredients. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0041] This embodiment differs from specific embodiments 1 to 2 in that: in step 1, melting is performed at a temperature of 735° C. for 6 hours. Others are the same as one of the specific embodiments 1 to 2.

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Abstract

The invention discloses a manufacture method of an aluminum alloy sectional material for a building formwork and belongs to the technical field of aluminum alloy sectional material manufacture. The objective of the invention is to solve the problems that the aluminum alloy sectional material for the building formwork, produced by the existing technology, is low in tensile strength, low in specified non-proportional extension strength, low in percentage elongation after fracture and low in corrosion performance. The method comprises the following steps of smelting, standing, casting, cutting, annealing, heating, extruding, quenching, aging and coating. Parameters in the technical step process are strictly controlled, and the aluminum alloy sectional material is enabled to have bigger cross section and better comprehensive performance, so that the use requirements on the building formwork are met, and the manufacture cost is reduced. Besides, through optimizing alloy components, and after extrusion, adopting an optimized aging technology and brushing a formwork protecting agent, the requirements of users on the comprehensive performance of the aluminum alloy sectional material are met, and the prepared aluminum alloy sectional material has the advantages of being high in strength, low in inclusion content, high in surface quality and outstanding in comprehensive mechanical property. The manufacture method is used for preparing the aluminum alloy sectional material for the building formwork.

Description

technical field [0001] The invention belongs to the technical field of manufacturing aluminum alloy profiles, and in particular relates to a method for manufacturing aluminum alloy profiles for building templates. Background technique [0002] Aluminum alloy materials have a wide range of applications, and can be used in various fields such as construction, electronic appliances, transportation, aviation, and aerospace in industry. At present, most of the aluminum templates in the building materials market use 6061 (or 6063) alloys, which have medium strength, low corrosion resistance, insufficient tissue dispersion uniformity, and there are a large number of coarse grains, thick cortical layers, etc., which lead to its The tensile strength and yield strength are weak. If in order to obtain higher strength, it is necessary to re-solution water quenching after extrusion, and online air-cooling quenching cannot be realized, resulting in a more complicated production process an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22F1/043E04G9/06
CPCC22C21/02C22F1/043E04G9/06
Inventor 周广宇李鹏伟孙巍盖洪涛荣伟王东辉李洪林王福林
Owner CHINA ZHONGWANG
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