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Heatproof magnesium alloy

A magnesium alloy and casting magnesium alloy technology, which is applied in the field of new heat-resistant magnesium alloys, can solve the problems of increasing the cost of magnesium alloys, expensive rare earth elements, and limiting the application range of rare earth magnesium alloys, and achieves improved high-temperature mechanical properties and low cost Effect

Inactive Publication Date: 2012-04-11
NINGBO RUITONG NEW MATERIAL TECH
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Problems solved by technology

However, the price of rare earth elements is relatively expensive, and it is still an important strategic resource rare earth, so its addition in magnesium alloys will undoubtedly increase the cost of magnesium alloys and limit the application range of rare earth magnesium alloys

Method used

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Embodiment Construction

[0008] A heat-resistant casting magnesium alloy, wherein the specific chemical composition of the magnesium alloy is (wt%): Zn 0.5-2, Al 5-9, Cu 1-5, Mn 0.1-0.6, Sb 1-2, and the balance is Mg and unavoidable impurities.

[0009] The preparation method of the magnesium alloy is as follows: prepare the raw materials according to the ratio of the above elements; smelt under the protection of solvent or gas, specifically, add industrial pure magnesium into the crucible, after the magnesium is completely melted, heat it at 680- At 700°C, add alloy elements in the form of industrially pure zinc, pure aluminum, pure copper, pure manganese and pure antimony. After all the alloy elements are melted, stir evenly and continue to heat up to 730-750°C, refining for 10-20 minutes After standing still for 20 minutes, cast after removing surface scum.

[0010] After testing, the magnesium alloy of the present invention has a tensile strength of 180 MPa, a yield strength of 140 MPa and a dura...

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Abstract

The invention provides a heatproof magnesium alloy. The magnesium alloy specifically comprises the following chemical components by weight percent: 0.5-2wt% of Zn, 5-9wt% of Al, 1-5wt% of Cu, 0.1-0.6wt% of Mn, 1-2wt% of Sb and the balance of Mg and inevitable impurities. The magnesium alloy has the following beneficial effects: as the magnesium alloy does not contain costly rare earth metals and is formed by several conventional adding elements, the magnesium alloy has the advantage of low cost; and meanwhile, the high temperature mechanical property of the magnesium alloy is obviously improved under the condition of satisfying the reasonable element ratios.

Description

technical field [0001] The invention relates to an alloy material, in particular to a novel heat-resistant magnesium alloy. Background technique [0002] Magnesium alloy is currently the lightest metal structural material available in industry, with the characteristics of low density, high specific strength, high specific stiffness, stable size, and good machinability and filling fluidity; especially in addition to In addition to the above thermodynamic properties, magnesium alloys also have excellent electromagnetic shielding properties and recyclable properties, which are new materials that are urgently needed in the information age and low-carbon environmental protection. Therefore, magnesium alloys are widely used in various fields such as aerospace, automobile industry, computer products, communication equipment and biomedicine, and the annual growth rate of its output has been as high as more than 25% in recent years. It can be said that magnesium alloy has become the...

Claims

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Application Information

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IPC IPC(8): C22C23/02
Inventor 刘文会
Owner NINGBO RUITONG NEW MATERIAL TECH
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