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A kind of mg-al-sn-sb magnesium alloy and preparation method thereof

A mg-al-sn-sb, magnesium alloy technology, applied in the field of light metal materials, can solve the problems of high cost of rare earth elements, reduced resources, etc., achieve high microhardness and melting point, inhibit grain growth, and thermal stability. Good results

Active Publication Date: 2018-08-10
鹤壁镁途科技有限公司
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  • Description
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  • Application Information

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Problems solved by technology

The heat-resistant magnesium alloy has developed from the initial Mg-Al to the Mg-RE system, and the heat resistance has been greatly improved to a certain extent. However, the high cost of rare earth elements and the dwindling resources force us to find more suitable elements to replace rare earth elements. element

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  • A kind of mg-al-sn-sb magnesium alloy and preparation method thereof
  • A kind of mg-al-sn-sb magnesium alloy and preparation method thereof
  • A kind of mg-al-sn-sb magnesium alloy and preparation method thereof

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preparation example Construction

[0033] The present invention also provides a method for preparing a Mg-Al-Sn-Sb magnesium alloy, comprising the following steps:

[0034] Step S1, alloy smelting: first, according to the mass percentage composition of the Mg-Al-Sn-Sb magnesium alloy, combined with the burning loss rate of elements, calculate the ratio of alloy elements, and select and weigh alloy raw materials magnesium ingots, aluminum ingots, tin and Antimony; secondly, put the graphite crucible into the vacuum induction melting furnace, then put the stainless steel crucible loaded with the alloy raw material into the graphite crucible, and vacuumize the vacuum induction melting furnace so that the vacuum degree is less than 0.1Pa , introducing an inert protective gas, starting to heat to the alloy melting temperature, so that the alloy raw material is fully melted, and an alloy melt is obtained; finally, the stainless steel crucible containing the alloy melt is cooled, extruded, and an ingot wagon is obtaine...

Embodiment 1

[0042] A kind of Mg-Al-Sn-Sb magnesium alloy, its mass percentage is composed of:

[0043] Al: 10.19%;

[0044] Sn: 5.1%;

[0045] Sb: 0%;

[0046] The rest is Mg and unavoidable impurities, and the total amount of unavoidable impurities is less than 0.05%.

[0047] The present embodiment Mg-Al-Sn-Sb magnesium alloy obtains by following preparation method:

[0048] Step S1, alloy smelting: firstly, according to the mass percentage composition of the Mg-Al-Sn-Sb magnesium alloy, combined with the burning loss rate of elements, the ratio of alloy elements is calculated, and the alloy raw materials magnesium ingot, aluminum ingot and tin are respectively weighed; Then, the graphite crucible is put into the vacuum induction melting furnace, and then the stainless steel crucible loaded with the alloy raw material is put into the graphite crucible, and the vacuum is evacuated so that the vacuum degree of the vacuum induction melting furnace is less than 0.1Pa. Enter the inert pr...

Embodiment 2

[0053] A kind of Mg-Al-Sn-Sb magnesium alloy, its mass percentage is composed of:

[0054] Al: 10.19%;

[0055] Sn: 4.99%;

[0056] Sb: 0.18%;

[0057] The rest is Mg and unavoidable impurities, and the total amount of unavoidable impurities is less than 0.05%.

[0058] The present embodiment Mg-Al-Sn-Sb magnesium alloy obtains by following preparation method:

[0059] Step S1, alloy smelting: First, according to the mass percentage composition of the Mg-Al-Sn-Sb magnesium alloy, combined with the burning loss rate of the elements, the ratio of alloy elements is calculated, and the alloy raw materials magnesium ingot, aluminum ingot, tin and Antimony; secondly, put the graphite crucible into the vacuum induction melting furnace, then put the stainless steel crucible loaded with the alloy raw material into the graphite crucible, and vacuumize the vacuum induction melting furnace so that the vacuum degree is less than 0.1Pa , into the inert protective gas argon, start heatin...

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Abstract

The invention provides an Mg-Al-Sn-Sb magnesium alloy and a preparation method thereof, and belongs to the technical field of light metal materials. The Mg-Al-Sn-Sb magnesium alloy is prepared from, by mass percent, 8.0%-10.5% of Al, 2.0%-5.5% of Sn, 0-1.8% of Sb and the balance Mg and inevitable impurities, and the total quantity of the inevitable impurities is smaller than 0.05%. The Mg-Al-Sn-Sb magnesium alloy has good strength and heat resistance in an extrusion state and an aging state, contains no precious metal element and has good extrusion performance and forming performance, the preparation process is simple, and operation is easy; and adopted equipment such as a vacuum induction melting furnace and a hot extruder is modern general equipment, and the beneficial effect of high replicability is achieved.

Description

technical field [0001] The invention belongs to the technical field of light metal materials, and relates to a magnesium alloy, in particular to a Mg-Al-Sn-Sb magnesium alloy and a preparation method thereof. Background technique [0002] As a light-weight and shock-absorbing metal structure material, magnesium alloy has many unique and excellent properties such as high specific stiffness, good shock resistance, high specific strength, excellent electromagnetic shielding performance, and good recyclability. It is compatible with composite materials, coatings and plastics. Compared with materials, magnesium can be used for engineering structural materials, and magnesium is a green engineering material, which is friendly to the environment. 60% of the fuel used in automobiles is consumed in the self-weight of the automobile. For every 100 kilograms reduction in the weight of the automobile, the fuel consumption per 100 kilometers can be reduced by 0.7 liters. Therefore, the li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C23/02C22C1/02C22F1/06
CPCC22C1/02C22C23/02C22F1/06
Inventor 马春华卢志文仲志国冷玉敏李根全叶铁许东光
Owner 鹤壁镁途科技有限公司
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