Building aluminum alloy section and preparation method thereof
A technology for aluminum alloy profiles and construction, applied in the field of aluminum alloy materials, can solve the problems of unsatisfactory weather resistance and corrosion resistance, achieve high strength, excellent weather resistance and corrosion resistance, and prolong the service life
Active Publication Date: 2014-07-02
安徽家园铝业有限公司
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Problems solved by technology
With the rapid development of the building materials industry, the requirements for corrosion resistance and weather resistance of aluminum alloy profiles are increasing, but the weather resistance and corrosion resistance of existing aluminum alloy profiles cannot meet the requirements of buildings for 70 years or even longer. Require
Method used
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Embodiment
[0016] An aluminum alloy profile for construction, the chemical composition of the alloy is: Si≤0.50, Cu 0.15-0.25, Mg 0.80-1.2, Zn≤0.4, Mn 1.0-1.5, Cr≤0.2, Fe 0.000-0.700, Ti≤0.1, B 0.015-0.04, Pb 0.1-0.3, Sn 0.3-0.5, Ce 0.025-0.045, Nd 0.02-0.03, Ho 0.01-0.02, and the balance is Al.
[0017] A method for preparing aluminum alloy profiles for construction, comprising the following steps:
[0018] (1) Calculate and weigh the charge according to the formula ratio, take the aluminum ingot and add it to the melting furnace for heating and melting. When the temperature of the melt reaches 730°C, add Al-15wt%Mn master alloy and Al-5wt%Sn master alloy in turn, and stir After uniformity, continue to heat up to 740°C, add Al-10wt%Mg master alloy, Al-3wt%Pb master alloy, Al-1wt%Cr master alloy, Al-0.5wt%Te master alloy in turn, and stir for 15 minutes after all the furnace materials are melted , to make the ingredients uniform, adjust the temperature to 730°C, blow the ref...
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Abstract
The invention discloses a building aluminum alloy section and a preparation method thereof. The building aluminum alloy section comprises the following chemical components by mass percent: no more than 0.50% of Si, 0.15-0.25% of Cu, 0.80-1.2% of Mg, no more than 0.4% of Zn, 1.0-1.5% of Mn, no more than 0.2% of Cr, 0.000-0.700% of Fe, no more than 0.1% of Ti, 0.015-0.04% of B, 0.1-0.3% of Pb, 0.3-0.5% of Sn, 0.025-0.045% of Ce, 0.02-0.03% of Nd, 0.01-0.02% of Ho, and the balance of Al. The finally obtained aluminum alloy section not only keeps high strength, but also has excellent weather fastness and corrosion resistance by reasonable optimization of the alloy elements, the service life of the aluminum alloy section is greatly prolonged, various requirements of the building material on the aluminum alloy section are completely met, and popularization and application of the building aluminum alloy section are facilitated.
Description
technical field [0001] The invention relates to an aluminum alloy profile for construction and a preparation method thereof, belonging to the field of aluminum alloy materials. Background technique [0002] Aluminum alloy has low density, but relatively high strength, close to or exceeding high-quality steel, good plasticity, easy to process, can be made into various profiles, and has excellent mechanical properties, physical properties and corrosion resistance. Aluminum alloy profiles are widely used in aerospace, transportation, machinery manufacturing, building decoration, chemical industry, etc., and are an important non-ferrous metal structural material. Due to the high strength of aluminum alloy profiles, it is not easy to rust, and compared with ordinary steel, it is lighter in weight and is more conducive to the construction of construction projects. It has become an important form of exterior wall and interior enclosure in current buildings and has been widely...
Claims
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IPC IPC(8): C22C21/00C22C21/08C22C21/06C22C1/06
Inventor 张广勋沈勇祁仁华
Owner 安徽家园铝业有限公司