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Magnesium alloy and preparation method and application thereof

A technology of magnesium alloy and mixed materials, which is applied in the field preparation of building components, construction, formwork/formwork components, etc., can solve the problems of high density of magnesium alloys, achieve good toughness, long service life, and ensure tensile strength Effects of performance and compressive properties

Pending Publication Date: 2022-03-18
HEBEI SHENGZHUO BUILDING EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing magnesium alloys still have the problem of high density

Method used

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  • Magnesium alloy and preparation method and application thereof
  • Magnesium alloy and preparation method and application thereof

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[0024] The invention provides a method for preparing a magnesium alloy, comprising the following steps;

[0025] Mix aluminum, manganese, iron, silicon, nickel, zinc, zirconium, lithium, copper and magnesium to obtain a mixture;

[0026] melting the mixed material to obtain a molten material;

[0027] Homogenizing the molten material to obtain a magnesium alloy liquid;

[0028] The magnesium alloy liquid is subjected to vacuum die-casting and aging treatment in sequence to obtain the magnesium alloy.

[0029] In the present invention, unless otherwise specified, the raw materials used are all commercially available products in this field.

[0030] The invention mixes aluminum, manganese, iron, silicon, nickel, zinc, zirconium, lithium, copper and magnesium to obtain a mixture.

[0031] In the present invention, the mixture preferably includes the following components in mass percentage: 6.7-7.2% of aluminum, 0.25-0.41% of manganese, 0.0062-0.0071% of iron, 0.057-0.065% of s...

Embodiment 1

[0049] The mass percentage of magnesium alloy raw materials is: aluminum 6.7%, manganese 0.25%, iron 0.0071%, silicon 0.057%, nickel 0.005%, zinc 0.76%, zirconium 0.005%, lithium 0.005%, copper 0.005%, the balance is magnesium, 750 ℃ Down melting, obtain molten material;

[0050] The molten material was subjected to high-temperature homogenization treatment at 780°C, heated for 2.5 hours to remove 99% of impurities inside, and then cooled statically for 2 hours.

[0051] Cool the magnesium alloy liquid to 450°C for 2 hours, vacuumize the mold to 85Pa, heat the mold temperature to 320°C, pour it into the mold and turn on the vacuum switch to suck the magnesium alloy liquid into the mold, and press it in the mold for one minute. forming.

[0052] After being transported to the static workshop for 1 hour, aging treatment is carried out. The static temperature is controlled at 150°C for 5 hours. Trim, straighten, paint, install, handle and spray code according to 0.5% ratio to ma...

Embodiment 2

[0056]The mass percentage of magnesium alloy raw materials is: aluminum 7.2%, manganese 0.41%, iron 0.0062%, silicon 0.065%, nickel 0.005%, zinc 0.86%, zirconium 0.01%, lithium 0.015%, copper 0.01%, the balance is magnesium, 630 ℃ Down melting, obtain molten material;

[0057] The molten material was subjected to high-temperature homogenization treatment at 800°C, heated for 3 hours to remove 99% of impurities inside, and then cooled statically for 1.5 hours.

[0058] Cool the magnesium alloy liquid to 470°C for 1.5 hours, then vacuum the mold to 95-105Pa, heat the mold temperature to 310-320°C, pour it into the mold and turn on the vacuum switch to suck the magnesium alloy liquid into the mold. The net value in the mold is 30 Seconds, carry out two stamping forming.

[0059] After 30 minutes of transportation to the static workshop, aging treatment is carried out. The static temperature is controlled at 100°C for 2 hours. Trimming, straightening, painting, installation and h...

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Abstract

The invention provides a magnesium alloy and a preparation method and application thereof, and belongs to the field of building templates. The invention provides a preparation method of a magnesium alloy, which comprises the following steps: mixing aluminum, manganese, iron, silicon, nickel, zinc, zirconium, lithium, copper and magnesium to obtain a mixture; melting the mixture to obtain a molten material; the molten material is subjected to homogenization treatment, and magnesium alloy liquid is obtained; and the magnesium alloy liquid is sequentially subjected to vacuum die casting and aging treatment, and the magnesium alloy is obtained. The proper grain size is obtained through homogenization treatment, so that the high-temperature creep resistance of the alloy is guaranteed, vacuum die casting is utilized, air holes are not formed, the density of the magnesium alloy is reduced, the effect of light weight is achieved, and the tensile property and the compression resistance of the magnesium alloy can be guaranteed in combination with solution treatment.

Description

technical field [0001] The invention relates to the technical field of building templates, in particular to a magnesium alloy and its preparation method and application. Background technique [0002] At present, in the building formwork industry, wood formwork, iron formwork, and aluminum alloy are commonly used, and the appearance of magnesium alloy formwork makes up for the previous deficiencies. Magnesium alloy materials have many characteristics in processing, corrosion and mechanical properties: light weight, good willfulness, and It has certain corrosion resistance and dimensional stability, good impact resistance, wear resistance and attenuation performance, easy to recycle, and has a wide range of applications. Since the strength of magnesium alloy is higher than that of aluminum alloy and iron, the weight of aluminum and iron formwork can be reduced without reducing the strength of formwork industry and parts. However, existing magnesium alloys still have the probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/02C22C1/02B22D17/14C22F1/06E04G9/02E04G9/06
CPCC22C23/02C22C1/02B22D17/14C22F1/06E04G9/02E04G9/06E04G2009/025E04G2009/028
Inventor 张超郝天亮王晓辉刘路欣葛坚赵凯旋王佳辉
Owner HEBEI SHENGZHUO BUILDING EQUIP MFG
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