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Magnesium-based alloy

A magnesium-based alloy, weight percent technology, applied in the field of metal material processing, can solve the problems of inability to meet the requirements of thin-walled and ultra-thin 3C products, poor magnesium alloy strength, casting performance and corrosion resistance, etc. Castability, strong activity, proportion and application value improvement effect

Inactive Publication Date: 2015-06-03
苏州昊卓新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 3C electronic products refer to the combination of Computer, Communication and Consumer Electronics. The thickness is mostly above 0.8mm; while the wall thickness of ultra-thin consumer electronics products is about 0.45-0.80mm, the emergence of thin-walled products also puts forward higher requirements for materials; while the strength and casting performance of traditional magnesium alloys and poor corrosion resistance, unable to meet the requirements of thin-walled and ultra-thin 3C products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A magnesium-based alloy of the present invention is used as a material for 3C cover products of 0.70-0.80 mm, or for casting, or as a machinable material, and its raw materials and weight percentages are:

[0032] Aluminum (Al): 9.23%, Zinc (Zn): 0.73%, Manganese (Mn): 0.095%, Silicon (Si): 0.049%,

[0033] Cerium (Ce): 0.31%, Lanthanum (La): 0.56%, Strontium (Sr) 0.15%, and the balance is magnesium and impurities caused by the manufacturing process.

[0034] The composition of the magnesium-based alloy in Example 1 is compared with the composition of the commercially available AZ91D magnesium alloy as shown in Table 1.

[0035] The magnesium-based alloy of embodiment 1 and the commercially available AZ91D magnesium alloy are tested for corrosion resistance, mechanical properties and casting properties, and the results are shown in chart 2 and chart 3

[0036] After testing, as shown in Table 2, the corrosion resistance of the magnesium-based alloy in Example 1 is high...

Embodiment 2

[0038] A magnesium-based alloy of the present invention is used as a material for 3C cover products of 0.60-0.70 mm, or for casting, or as a machinable material, and its raw materials and weight percentages are:

[0039] Aluminum (Al): 9.01%, zinc (Zn): 0.69%, manganese (Mn): 0.75%, silicon (Si): 0.042%, cerium 0.31%, lanthanum 0.56%, strontium 0.15%, samarium (Sm) 0.5% , and the balance is magnesium and impurities caused by the manufacturing process.

[0040] The composition of the magnesium-based alloy in Example 2 is compared with the composition of the rare earth magnesium alloy in Example 1 as shown in Table 4.

[0041] Corrosion resistance, mechanical properties and casting properties were tested on the magnesium-based alloy of Example 2 and the magnesium-based alloy of Example 1, and the results are shown in Table 5 and Table 6.

[0042] After testing, as shown in Table 5, the corrosion resistance of the magnesium-based alloy of Example 2 is higher than that of Example...

Embodiment 3

[0044]A magnesium-based alloy of the present invention is used as a material for 3C cover products of 0.45-0.60 mm, or for casting, or as a machinable material, and its raw materials and weight percentages are:

[0045] Aluminum (Al): 9.43%, zinc (Zn): 0.70%, manganese (Mn): 0.070%, silicon (Si): 0.039%, cerium 0.31%, lanthanum 0.56%, samarium 0.5%, strontium 0.15%, titanium ( Ti) 0.15%, the balance is magnesium and impurities caused by the manufacturing process.

[0046] The composition of the magnesium-based alloy in Example 3 is compared with the composition of the magnesium-based alloy in Example 2 as shown in Table 7.

[0047] The magnesium-based alloy of embodiment 3 and the magnesium-based alloy of embodiment 2 are tested for corrosion resistance, mechanical properties and casting performance, and the results are shown in chart 8 and chart 9

[0048] After testing, as shown in Table 8, the corrosion resistance of the magnesium-based alloy of Example 3 is higher than th...

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Abstract

The invention discloses magnesium-based alloy. The magnesium-based alloy comprises the following main components by weight percent: 8.8-9.43% of Al, 0.5-0.8% of Zn, 0.05-0.1% of Mn, 0.03-0.06% of Si, 0.3-1.2% of Ce, 0.3-1.2% of La, 0.05-0.3% of Sr and the balance of magnesium and impurities caused in the preparation process. The magnesium-based alloy disclosed by the invention has the advantages that the defects of the traditional die-casting magnesium alloy can be overcome, the casting performance is good, the strength is high, the density is low, the corrosion resistance is excellent, the price is low, and the requirement for high texture of an ultra-thin-wall type 3C product can be met.

Description

technical field [0001] The invention relates to the technical field of metal material processing, in particular to a magnesium-based alloy applied to ultra-thin 3C products. Background technique [0002] Magnesium alloy is an alloy composed of magnesium and other elements. It is the lightest material in structural engineering. It has excellent characteristics of small specific gravity, high rigidity, good vibration damping, good resistance to electromagnetic interference, good heat dissipation, and good texture. , are widely used in aerospace, transportation, chemical industry, rocket and other fields. [0003] 3C electronic products refer to the combination of computer (Computer), communication (Communication) and consumer electronics (Consumer Electronics). Usually, the wall thickness of magnesium alloy 3C products is more than 0.8mm; and ultra-thin consumer electronic products The wall thickness is about 0.45-0.80mm, and the emergence of thin-walled products also puts fo...

Claims

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Application Information

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IPC IPC(8): C22C23/02
CPCC22C23/02
Inventor 单巍巍刘金平
Owner 苏州昊卓新材料有限公司
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