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7005 aluminum alloy heat treatment process

An aluminum alloy and process technology, which is applied in the field of heat treatment process that can improve the performance of 7005 aluminum alloy, can solve the problems of low strength of pure aluminum and unsuitable structural materials.

Inactive Publication Date: 2016-04-20
朱丽兰
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the strength of pure aluminum is very low, so it is not suitable for structural materials, annealed Al plate, =80~100MPa

Method used

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  • 7005 aluminum alloy heat treatment process
  • 7005 aluminum alloy heat treatment process

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Embodiment Construction

[0013] The experimental materials are taken from the 7005 aluminum alloy hot-rolled plates produced by the factory, and are subjected to solution treatment in a HXSG2?? , water temperature ≤ 40 ℃, quenching transfer time ≤ 5s, using POLYVARMET metallographic microscope to observe the quenched alloy microstructure. The size and distribution of undissolved phases in quenched alloys were observed by Sirion200 field emission scanning electron microscope, and the types of undissolved phases were analyzed by Finder1000 energy spectrum analyzer. The microstructure of the alloy was observed with a TecnaiG220 transmission electron microscope, the sample was mechanically thinned to below 80 μm, and the chemical thinning was carried out on the MPT??1 double-jet electrolytic thinning instrument, and the ratio of the double-jet electrolyte was nitric acid and methanol The volume ratio is 3:7, the temperature is ??30℃~??20℃, the voltage is 12~15V, and the current is 55mA. After solid solut...

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Abstract

The present invention discloses a 7005 aluminum alloy heat treatment process, which is characterized in that a 7005 aluminum alloy hot-rolled plate is subjected to a solution treatment in a HXSG2 1200 box-type resistance furnace, the solution temperature is 460-500 DEG C, thermal insulation is performed for 1 h, the water temperature is less than or equal to 40 DEG C, the quenching transfer time is less than or equal to 5 s, and the best solution temperature is 480 DEG C.

Description

technical field [0001] The invention relates to a heat treatment process of 7005 aluminum alloy, in particular to a heat treatment process capable of improving the properties of 7005 aluminum alloy. Background technique [0002] Aluminum is one of the most widely distributed and abundant non-ferrous metals in the earth's crust. Since it was discovered in the 19th century, it has been widely used due to a series of good comprehensive properties. At present, it is the second most used metal after steel. The atomic number of Al is 13, the atomic weight is 26.9815, the density is 2.7×103kg / m3 (25°C), the melting point is 660.24°C, and the boiling point is 2467°C. Pure aluminum is a light metal with silver-white metallic luster, soft, with a face-centered cubic lattice (a=0.40486nm) structure, and no allotropic transformation. [0003] Aluminum has good light reflection performance, good electrical conductivity, and is a good conductor of heat. Pure aluminum has good ductility, ...

Claims

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Application Information

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IPC IPC(8): C22F1/04
Inventor 朱丽兰
Owner 朱丽兰
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