Aluminium die-cast alloy

A technology of casting aluminum alloy and intermediate alloy, applied in the field of die-casting aluminum alloy, can solve the problems of inability to meet product material requirements, poor anodic oxidation performance, poor mechanical performance, etc. Good effect of anodizing performance and corrosion resistance

Active Publication Date: 2013-10-09
嘉宜科技(惠州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional die-casting aluminum alloys have poor anodic oxidation performance, poor mechanical properties, and poor corrosion resistance, which cannot meet product material requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0011] Pure aluminum, standard aluminum-manganese alloy, standard aluminum-silicon alloy, standard aluminum-iron alloy, pure magnesium, pure zinc, standard rare-earth aluminum-titanium-boron alloy, standard magnesium-lanthanum-cerium alloy, calculated by ingredients, and then smelted and die-casted, finally prepared The weight content of the main elements of the alloy is shown in the following table:

[0012] SiCu Fe Mn Mg Zn Ti LaCe 0.50.50.80.52.00.80.150.6

[0013] The tensile properties of the resulting alloy are 240MPa tensile strength, 160MPa yield strength, and 8.1% elongation. Anodizing effect: uniform color, bright color, smooth surface, and black anodized film thickness of 23μm.

example 2

[0015] Pure aluminum, standard aluminum-manganese alloy, standard aluminum-silicon alloy, standard aluminum-iron alloy, pure magnesium, pure zinc, standard rare-earth aluminum-titanium-boron alloy, standard magnesium-lanthanum-cerium alloy, calculated by ingredients, and then smelted and die-casted, finally prepared The weight content of the main elements of the alloy is shown in the following table:

[0016] SiCu Fe Mn Mg Zn Ti LaCe 0.80.40.700.552.30.90.150.68

[0017] The tensile properties of the alloy thus made are 250MPa tensile strength, 165MPa yield strength, and 7.6% elongation; anodizing effect: uniform color, bright color, smooth surface, and black anodized film thickness of 24μm.

example 3

[0019] Pure aluminum, standard aluminum-manganese alloy, standard aluminum-silicon alloy, standard aluminum-iron alloy, pure magnesium, pure zinc, standard rare-earth aluminum-titanium-boron alloy, standard magnesium-lanthanum-cerium alloy, calculated by ingredients, and then smelted and die-casted, the final production The weight content of the main elements of the obtained alloy is shown in the following table:

[0020] SiCu Fe Mn Mg Zn Ti LaCe 1.50.30.600.72.81.20.180.70

[0021] The tensile properties of the alloy thus produced are tensile strength of 260MPa, yield strength of 176MPa, and elongation rate of 5.2%; anodizing effect: uniform color, bright color, smooth surface, and black anodized film thickness of 25μm.

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Abstract

The invention discloses an aluminium die-cast alloy which mainly contains Si, Cu, Fe, Mn, Mg, Zn, Ti and LaCe elements. The aluminium die-cast alloy is characterized in that weight content of all the elements are respectively as follows: 0.5% to 2.0% of Si, 0.1% to 0.5% of Cu, 0.3% to 0.8% of Fe, 0.5% to 1.0% of Mn, 2.0% to 4.0% of Mg, 0.8% to 2.0% of Zn, 0.15% to 0.2% of Ti and 0.6% to 0.8% of LaCe. The aluminium die-cast alloy has the good anodic oxidation ability, mechanical property and corrosion resisting property.

Description

technical field [0001] The invention relates to an aluminum alloy, in particular to a die-casting aluminum alloy. Background technique [0002] Aluminum alloy is an alloy composed of aluminum and other elements. It is the most commonly used material in structural engineering. It has small specific gravity, good heat transfer, good electrical conductivity, environmental protection, and recyclable recycling. It is widely used in 3C, automobiles Transportation, home furnishing, aerospace, chemical industry, rocket and other fields. [0003] Among the existing die-casting (casting) aluminum alloys, aluminum-silicon alloys are the majority. Such alloys have excellent die-casting properties, but various die-castings (castings) with metallic luster cannot be obtained. Aluminum-silicon alloy die castings (castings), once chemically treated, the surface becomes gray and black, with poor mechanical properties and high brittleness. Although other aluminum-magnesium alloys have excell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C21/02C22C21/10
Inventor 李远发单巍巍刘金平
Owner 嘉宜科技(惠州)有限公司
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