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Aluminum alloy building formwork and preparation method thereof

A technology for building formwork and aluminum alloy, applied in the field of aluminum alloy, can solve the problems of inability to meet processing and assembly requirements, insufficient mechanical properties due to hardenability, bending deformation of formwork materials, etc., to achieve excellent mechanical properties, improve hardenability, The effect of high production efficiency

Pending Publication Date: 2021-08-10
GUANGDONG JMA ALUMINUM PROFILE FACTORY GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most widely used alloys for aluminum formwork are 6063, 6061, 6005 and 6082 alloys; among them, the most widely used is 6061 alloy formwork, but the extrusion speed of 6061 alloy formwork material is low (≤5m / min), and the multi-cavity formwork material will also The inner cavity is dragged and the surface is burred, and the mechanical properties are low due to insufficient hardenability (the quenching and cooling strength can be increased, such as water cooling to improve the hardenability, but it will cause a large bending deformation of the template material, which cannot meet the processing and processing requirements. Assembling requirements), for this kind of load-bearing structural parts, only with high enough strength can there be greater safety and quality assurance

Method used

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  • Aluminum alloy building formwork and preparation method thereof
  • Aluminum alloy building formwork and preparation method thereof
  • Aluminum alloy building formwork and preparation method thereof

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preparation example Construction

[0041] refer to figure 1 , the preparation method of aluminum alloy building formwork in the present invention comprises the following steps:

[0042] S1: Prepare various raw materials according to the proportion for later use;

[0043] Specifically, the raw materials in the present invention include but are not limited to: returned materials, pure aluminum ingots, Al-20%Mn master alloys, Al-20%Cr master alloys, Al-50%Cu master alloys, high-purity magnesium, high-purity silicon, Aluminum titanium boron wire (it is enough to control the content of Fe in each raw material, generally there is no need to specifically add Fe element, unless it is necessary to add Fe properly).

[0044] S2: Mix and cast the raw materials to obtain aluminum cast rods;

[0045] Specifically, S2 includes:

[0046] S21: mixing and melting the raw materials, and removing slag to obtain the first alloy liquid;

[0047] Specifically, the aluminum ingots are first added to the melting furnace, and the mel...

Embodiment 1

[0066] This embodiment provides a kind of aluminum alloy building formwork, and its formula is:

[0067] Si 0.9%, Mg 0.8%, Cu 0.15%, Mn 0.005%, Fe 0.6%, Zn 0.2%, Cr 0.04%, Ti0.13%, unavoidable impurities 0.1%, and the balance is Al.

[0068] Its preparation method is:

[0069] (1) Prepare various raw materials according to the ratio for subsequent use;

[0070] (2) mixing and casting the raw materials to obtain cast rods;

[0071] (3) Homogenize the cast rod; wherein, the homogenization temperature is 570° C., and the time is 6 hours; after homogenization, it is cooled by strong wind;

[0072] (4) Extrude the homogenized casting rod to obtain the building template rough billet; wherein, the extrusion speed is 9.5m / min, the temperature of the extrusion die is 450°C, and the temperature of the extrusion cylinder is 420°C. The temperature of the cast rod is 500°C, the temperature of the building formwork rough billet after extrusion is 540°C, and it is cooled by strong wind on...

Embodiment 2

[0077] This embodiment provides a kind of aluminum alloy building formwork, and its formula is:

[0078] Si 0.8%, Mg 1.1%, Cu 0.2%, Mn 0.1%, Fe 0.4%, Zn 0.05%, Cr 0.1%, Ti 0.05%, unavoidable impurities 0.15%, and the balance is Al.

[0079] Its preparation method is:

[0080] (1) Prepare various raw materials according to the ratio for subsequent use;

[0081] (2) mixing and casting the raw materials to obtain cast rods;

[0082] (3) Homogenize the cast rod; wherein, the homogenization temperature is 575° C., and the time is 6 hours; after homogenization, strong wind cooling + water mist cooling;

[0083] (4) Extrude the homogenized casting rod to obtain the building formwork rough billet; wherein, the extrusion speed is 8m / min, the temperature of the extrusion die is 460°C, the temperature of the extrusion cylinder is 430°C, and the casting before extrusion The temperature of the rod is 480°C, the temperature of the building formwork rough billet after extrusion is 550°C, ...

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Abstract

The invention discloses an aluminum alloy building formwork mainly comprising, by mass, 0.4%-1.0% of Si, 0.8%-1.3% of Mg, 0.05%-0.2% of Cu, 0.001%-0.15% of Mn, 0.2%-0.7% of Fe, less than or equal to 0.25% of Zn, 0.001%-0.1% of Cr, 0.03%-0.15% of Ti and the balance Al and inevitable impurities. The content of the inevitable impurities is less than or equal to 0.15%. Correspondingly, the invention further discloses a preparation method of the aluminum alloy building formwork. The aluminum alloy building formwork is excellent in mechanical property, the extrusion speed can reach 8-10 m / min, and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to an aluminum alloy building template and a preparation method thereof. Background technique [0002] With the rapid development of urbanization in my country, building formwork, as an indispensable construction material and important machine tool for high-rise and super high-rise buildings, puts forward higher requirements for its service life, quality and safety assurance, and material recycling. Lightweight aluminum with a series of excellent properties is increasingly favored by the construction industry as an ideal "green building" material. There is a trend of replacing wood, plastic and steel with aluminum, so aluminum formwork should be used And born. The most widely used alloys for aluminum formwork are 6063, 6061, 6005 and 6082 alloys; among them, the most widely used is 6061 alloy formwork, but the extrusion speed of 6061 alloy formwork material is low (≤5m / min), ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C21/02C22C1/03C21D9/00C22F1/043C22F1/047B21C29/00B21C29/02B21C29/04B21C35/03
CPCC22C21/08C22C21/02C22C1/026C21D9/0075C21D9/0081C22F1/047C22F1/043C22C1/03B21C29/003B21C29/04B21C29/02B21C35/03
Inventor 高森田阮涛涛张永丁幸宇
Owner GUANGDONG JMA ALUMINUM PROFILE FACTORY GRP
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