Aluminum alloy material for high-strength and high-toughness glasses frame and preparation method of aluminum alloy material

An aluminum alloy material, high toughness technology, used in glasses/goggles, optics, instruments, etc., can solve the problems of poor resistance to deformation, limited use of aluminum alloys, low yield strength, etc., to achieve low internal stress and low segregation tendency , the effect of fine grain structure

Pending Publication Date: 2021-07-02
深圳市金悦志丰眼镜有限公司
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Problems solved by technology

Compared with the traditional alloys used in spectacle frames, existing grades of aluminum alloys have lower

Method used

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  • Aluminum alloy material for high-strength and high-toughness glasses frame and preparation method of aluminum alloy material
  • Aluminum alloy material for high-strength and high-toughness glasses frame and preparation method of aluminum alloy material
  • Aluminum alloy material for high-strength and high-toughness glasses frame and preparation method of aluminum alloy material

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Embodiment

[0044] The invention provides a high-strength and high-toughness aluminum alloy material for spectacle frames, the chemical composition of which includes: 0.25-0.30% Si content, 0.22-0.27% Fe content, and 0.22-0.27% Cu content. 1.5-2.1%, the content of Mn is 0.25-0.40%, the content of Mg is 2.2-3.2%, the content of Cr is 0.10-0.20%, the content of Zn is 4.7-5.6%, the content of Zr is 0.07-0.15%, The content of RE is 0.07-0.15%, the content of Ti is 0.27-0.35%, and the balance is Al.

[0045]Examples of high-strength and high-toughness aluminum alloys for spectacle frames include the main alloy elements Zn, Mg, and Cu, which belong to the 7-series alloy superhard aluminum alloy, which can be strengthened by heat treatment, and have good wear resistance, weldability and high yield Strength, is a high-quality base metal for eyeglass frames. There are many strengthening phases such as MgZn2, S phase (Al2CuMg), T phase (AlCuMgZn) and so on in the alloy.

[0046] The examples cont...

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Abstract

The invention discloses an aluminum alloy material for a high-strength and high-toughness glasses frame. The aluminum alloy material comprises the following chemical components: Si, Fe, Cu, Mn, Mg, Cr, Zn, Zr, RE, Ti and the balance Al. A preparation method comprises the following steps of: heating and melting the prepared high-strength and high-toughness aluminum alloy raw material, performing purification treatment, and casting the melt into a cast ingot for subsequent processing. The aluminum alloy material disclosed by the invention is an Al-Zn-Mg-Cu alloy, the alloy strength and toughness are maximized by optimizing the alloy component design, the produced cast ingot is uniform in component at each position and small in internal stress, stress relief annealing is not needed, and due to the addition of transition group elements Zr and lanthanide elements (La and Ce), the microscopic grain structure is refined, and the strength and toughness of the alloy are improved.

Description

technical field [0001] The invention relates to the technical field of metal material development, in particular to an aluminum alloy material for high-strength and high-toughness spectacle frames and a preparation method thereof. Background technique [0002] Spectacle frames are an important part of glasses and mainly play the role of supporting spectacle lenses. The main materials of the frames are: metal, plastic or resin, natural materials, etc. Metal materials have high fracture strength, and at the same time have sufficient plasticity, toughness, good elasticity and corrosion resistance, and have an extremely long service life. [0003] The metal materials currently used for spectacle frames are mainly copper alloys, nickel alloys and titanium alloys. Their characteristics are as follows: ①The copper alloy frame is heavy, poor in elasticity, easy to deplating, easy to oxidize and produce green copper oxide, which affects the appearance; ②Nickel alloy has good cold te...

Claims

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Application Information

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IPC IPC(8): C22C21/10C22C1/03G02C5/00
CPCC22C21/10C22C1/026C22C1/03G02C5/008
Inventor 何永鑫
Owner 深圳市金悦志丰眼镜有限公司
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