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Aluminum alloy and aluminum alloy product preparation method

An aluminum alloy product and aluminum alloy technology, applied in the field of alloys, can solve the problems of low controllability, poor surface quality, and low mechanical properties of the coarse-grained layer, and achieve good surface quality, high controllability, and high mechanical properties. Effect

Active Publication Date: 2017-03-29
YONZ TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the aluminum alloys and aluminum alloy products in the related art have the disadvantages of low controllability of the coarse grain layer, serious composition segregation, low mechanical properties of the aluminum alloy products, and poor surface quality.

Method used

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  • Aluminum alloy and aluminum alloy product preparation method

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preparation example Construction

[0041] Such as figure 1 As shown, the application also provides a method for preparing an aluminum alloy product, comprising the steps of:

[0042] Step 1 S100, ingredients: according to Si:0.3-0.54%; Fe≤0.2%; Cu≤0.02%; Mn:0.01-0.02%; Mg:0.4-0.6%; Cr≤0.02%; Zn≤0.02%; Ti: 0.01-0.05%; Zr: 0.01-0.04%; Al balance, equipped with the components;

[0043] Step 2 S200, smelting: put Si, Fe, Cu, Mn, Mg, Cr, Zn, Ti, Zr prepared according to the mass percentage into the Al melt prepared according to the stated mass percentage, and the melting temperature is 710- 750°C, the smelting time is 3-5 hours, and the mixed melt A is obtained;

[0044] Step 3 S300, electromagnetic stirring: after the smelting is completed, the mixed melt A is electromagnetically stirred for 10-25 minutes to obtain the mixed melt B;

[0045] Step 4 S400, refining: adding a sodium-free refining agent to the mixed melt B for refining, the refining temperature is 720-750°C, and the refining time is 10-20 minutes. A...

Embodiment 1

[0062] An aluminum alloy consisting of the following components: Si: 0.3%; Fe: 0.2%; Cu: 0.02%; Mn: 0.01%; Mg: 0.4%; Cr: 0.02%; Zn: 0.02%; Ti: 0.01% ; Zr: 0.01%; Al: 99.01%.

Embodiment 2

[0064] An aluminum alloy consisting of the following components: Si: 0.4%; Fe: 0.18%; Cu: 0.01%; Mn: 0.012%; Mg: 0.46%; Cr: 0.01%; Zn: 0.015%; Ti: 0.02% ; Zr: 0.02%; Al: 98.873%.

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Abstract

The invention provides an aluminum alloy. The aluminum alloy is prepared from the following components in percentage by mass: 0.3-0.54% of Si, less than or equal to 0.2% of Fe, less than or equal to 0.2% of Cu, 0.01-0.02% of Mn, 0.4-0.6% of Mg, less than or equal to 0.2% of Cr, less than or equal to 0.2% of Zn, 0.01-0.05% of Ti, 0.01-0.04% of Zr and the balance of Al. Compared with the prior art, the aluminum alloy has the beneficial effects of high coarse-grain layer controllability and light composition segregation, and an aluminum alloy product is relatively high in mechanical properties and good in surface quality.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of alloys, in particular to a method for preparing aluminum alloys and aluminum alloy products. [0003] 【Background technique】 [0004] 6063 alloy belongs to the Al-Mg-Si series alloy, which is a high-quality aluminum alloy product produced by heat treatment and pre-stretching process, and has excellent mechanical properties, machinability, corrosion resistance and other characteristics. At the same time, the alloy is easy to be oxidized and has good surface quality. Widely used in appearance parts of high-end electronic products. [0005] In the related technology, a coarse-grained layer with a depth of 5-10 mm often appears in the low-magnification detection of the homogenized sample of the 6063 alloy, and the grain size in the coarse-grained layer is 10-100 times that of the original grain, reaching 10-100mm. The coarse-grained layer on the ingot will lead to the formation of a ring-shaped coa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C21/02C22C1/02C22C1/06
Inventor 李贻成向和平冯中慧
Owner YONZ TECH CO LTD