6-series aluminum alloy profile suitable for aluminum template and preparation method thereof

A technology of aluminum alloy profiles and aluminum templates, applied in the field of aluminum alloy processing, can solve problems such as low efficiency, shortened service life, and material deformation

Inactive Publication Date: 2021-09-07
FOSHAN AOMEI ALUMINUM IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the mainstream aluminum formwork profiles currently on the market are all produced with 6061 alloy, but because of its high Mg content and certain Cu content, 6061 alloy has high resistance to extrusion deformation, and the efficiency of especially producing formwork profiles with reinforced hole shapes is low. At the same time, a higher extrusion temperature is required, which wastes gas and electric energy
Moreover, because of the high Mg content and the Cr element, the quenching sensitivity is high. Generally, a large amount of water spray or water penetration must be used to cool to ensure the performance. However, this process is easy

Method used

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  • 6-series aluminum alloy profile suitable for aluminum template and preparation method thereof
  • 6-series aluminum alloy profile suitable for aluminum template and preparation method thereof

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preparation example Construction

[0026] A method for preparing a 6-series aluminum alloy profile suitable for aluminum templates mainly includes the following steps.

[0027] 1) Alloy composition adjustment, prepare aluminum alloy raw materials according to the following weight ratio: Si: 0.65%~0.75%, Fe: ≤0.25%, Cu: 0.05%~0.10%, Mn: 0.05%~0.10%, Mg: 0.55 %~0.65%, Cr: ≤0.10%, Zn: 0.20%~0.30%, Sn: 0.05%~0.10%, Ti: ≤0.05%, single impurity ≤0.05%, total impurity ≤0.15%, and the balance is Al.

[0028] Among them, the Mg / Si ratio is the optimal ratio for forming a β" phase (Mg5Si6) after aging after Fe and Mn consume certain Si elements to form a compound, which can achieve the highest strength with the lowest possible composition and low deformation resistance.

[0029] Fe element control is to reduce the formation of harmful acicular Fe phase, avoid affecting the extrusion performance and reduce the occurrence of cracking and dragging, and the lower Fe phase can improve the fatigue performance of the material, ...

Embodiment 1

[0046] A method for preparing a 6-series aluminum alloy profile suitable for aluminum templates mainly includes the following steps.

[0047] 1) Alloy composition adjustment, prepare aluminum alloy raw materials according to the following weight ratio: Si: 0.65%, Fe: ≤ 0.25%, Cu: 0.05%, Mn: 0.05%, Mg: 0.55%, Cr: ≤ 0.10%, Zn : 0.20%, Sn: 0.05%, Ti: ≤0.05%, single impurity ≤0.05%, total impurity ≤0.15%, and the balance is Al.

[0048] 2) Preparation of aluminum alloy ingots, adding the prepared aluminum alloy raw materials into the melting furnace to melt into molten aluminum, stirring evenly with electromagnetic stirring equipment, refining and degassing with refining agent, and filtering impurities in molten aluminum through ceramic filter plates , and then cast the molten aluminum into an aluminum alloy ingot.

[0049] 3) Homogenization treatment, put the cast aluminum alloy ingot in the homogenization furnace first, and use 540°C for 8h homogenization treatment.

[0050] 4...

Embodiment 2

[0056] A method for preparing a 6-series aluminum alloy profile suitable for aluminum templates mainly includes the following steps.

[0057] 1) Alloy composition adjustment, prepare aluminum alloy raw materials according to the following weight ratio: Si: 0.75%, Fe: ≤0.25%, Cu: 0.10%, Mn: 0.10%, Mg: 0.65%, Cr: ≤0.10%, Zn : 0.30%, Sn: 0.10%, Ti: ≤0.05%, single impurity ≤0.05%, total impurity ≤0.15%, and the balance is Al.

[0058] 2) Preparation of aluminum alloy ingots, adding the prepared aluminum alloy raw materials into the melting furnace to melt into molten aluminum, stirring evenly with electromagnetic stirring equipment, refining and degassing with refining agent, and filtering impurities in molten aluminum through ceramic filter plates , and then cast the molten aluminum into an aluminum alloy ingot.

[0059] 3) Homogenization treatment, put the cast aluminum alloy ingot in the homogenization furnace first, and use 560°C for 5h homogenization treatment.

[0060] 4) ...

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Abstract

The invention discloses a 6-series aluminum alloy profile suitable for an aluminum template and a preparation method thereof. By adjusting the alloy components of an aluminum alloy ingot and a heat treatment process, the average main cylinder pressure of the 6-series aluminum alloy profile suitable for the aluminum template in the extrusion process is effectively reduced, and the finally prepared aluminum template profile has more excellent tensile strength and yield strength. The adjusted alloy components are prepared from the following components in percentage by weight: 0.65-0.75% of Si, less than or equal to 0.25% of Fe, 0.05-0.10% of Cu, 0.05-0.10% of Mn, 0.55-0.65% of Mg, less than or equal to 0.10% of Cr, 0.20-0.30% of Zn, 0.05-0.10% of Sn, less than or equal to 0.05% of Ti, less than or equal to 0.05% of single impurity, less than or equal to 0.15% of total impurities and the balance Al. The aluminum template profile is prepared by the steps of ingot casting, homogenization treatment, surface brush rod or peeling treatment, extrusion forming, quenching cooling and artificial aging of the prepared alloy components.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, in particular to a 6-series aluminum alloy profile suitable for aluminum formwork and a preparation method thereof. Background technique [0002] The use of foreign aluminum formwork has a history of more than 50 years, the technology is mature, and the field is very extensive. The aluminum formwork industry in my country has also started to develop rapidly in the past 10 years, and it has been widely used from design departments to construction units. Moreover, as a new type of building formwork, the development and application of aluminum formwork can not only promote the application of aluminum, but also have good economic benefits for the construction industry, especially for environmental protection and resource conservation. It can be seen that vigorously promoting "saving wood with aluminum" in the construction field is of great significance, and the market potential is ...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/02C22F1/043C21D1/18C21D8/00
CPCC22C21/02C22C1/026C22F1/043C22F1/002C21D8/00
Inventor 周晶哲林廷鑑刘才兴李洪刚
Owner FOSHAN AOMEI ALUMINUM IND
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