CN104593653B - High-strength thin-walled part magnesium alloy and preparation method thereof - Google Patents
High-strength thin-walled part magnesium alloy and preparation method thereof Download PDFInfo
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- CN104593653B CN104593653B CN201510053636.7A CN201510053636A CN104593653B CN 104593653 B CN104593653 B CN 104593653B CN 201510053636 A CN201510053636 A CN 201510053636A CN 104593653 B CN104593653 B CN 104593653B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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Abstract
The present invention relates to magnesium alloy technology, specially a kind of high-strength thin-walled part magnesium alloy and preparation method thereof, there is intensity poor influence yield rate when solving the problems, such as that AZ91 magnesium alloys make thin wall component.High-strength thin-walled part magnesium alloy, is made up of the raw material of following mass percent：Aluminium 9 11%, zinc 0.3 0.9%, manganese 0.15 0.50%, balance of magnesium and impurity.The present invention is by the improvement to magnesium alloy formula, effectively increase its intensity, tensile strength has reached 280 290MPa, yield strength has reached 180 190MPa, mobile performance is also obviously improved, die casting cost rate higher is ensure that, there is process is simple, easy to operate and low cost.
Description
Technical field
The present invention relates to magnesium alloy technology, specially a kind of high-strength thin-walled part magnesium alloy and preparation method thereof.
Background technology
After the alloying such as magnesium and some metallic element aluminium, zinc, manganese, rare earth, zirconium, silver, the conjunction of the high-strength light for obtaining
Gold can be used as structural material, and these alloying elements mainly improve the performance of material by solution strengthening and precipitation strength.
Magnesium-aluminum alloys are most, the most widely used magnesium alloy series of the current trade mark.Compared with wrought magnesium alloy, magnesium is cast
Alloyapplication is particularly extensive, particularly die casting, accounts for more than 70-80%, and wherein AZ91 Alloyapplications are the most extensive, due to it
Excellent mobility, can be with the thin wall component of die casting labyrinth.The solid solubility of aluminium is 2 mass.% at room temperature, at 437 DEG C
When rise to 12.7 mass.%.Aluminium content is more than 2 mass.%, and β can be formed near as-cast magnesium alloy crystal boundary（Mg17Al12）.With
The increase of aluminium content, β phases form network in grain boundaries, but aluminium content is more than 10 mass.%, the ductility and mechanics of magnesium alloy
Performance drastically declines, and influences the yield rate of thin wall component.
The content of the invention
The present invention is carried to solve the problems, such as there is the poor influence yield rate of intensity when AZ91 magnesium alloys make thin wall component
For a kind of high-strength thin-walled part magnesium alloy and preparation method thereof.
The present invention adopts the following technical scheme that realization：High-strength thin-walled part magnesium alloy, is by following quality hundred
Divide the raw material composition of ratio：Aluminium 9-11%, zinc 0.3-0.9%, manganese 0.15-0.50%, balance of magnesium and impurity.
Aluminium, zinc, the content of manganese and ratio each other are chosen, and are drawn by substantial amounts of repetition test, aluminium content
Selection improve alloy strength and hardness, can also widen solidification zone, increase the mobility of alloy, improve casting character；Zinc contains
The selection of amount is combined with aluminium can improve the room temperature strength of alloy, with solution strengthening and ageing strengthening double action, while can subtract
The light corrosiveness for existing and causing by iron, nickel；The selection of manganese content can somewhat improve yield strength, and by except de-iron and its
His heavy metal element avoids the harmful intergranular compound of generation to improve the anti-seawater corrosion ability of magnadure, in fusion process
The harmful intermetallic compound in middle part can be separated, while crystal grain thinning, improves solderability, overcome AZ91 magnesium alloy systems
Make the presence of intensity poor influence yield rate during thin wall component.
The preparation method of high-strength thin-walled part magnesium alloy, using following steps：A, by magnesium ingot in iron ware melt
Melt, b, be subsequently heated to 650-750 DEG C, aluminium, zinc, manganese Metal are sequentially added at this temperature；C, by magnesium alloy fused mass control exist
700-750 DEG C, stood after being stirred with argon gas；D, magnesium alloy fused mass temperature is finally down to 670-690 DEG C, carries out magnesium alloy ingot
Casting.
The present invention effectively increases its performance by the improvement to magnesium alloy formula, and tensile strength has reached 280-
290MPa, yield strength has reached 180-190MPa, and mobile performance is also obviously improved, it is ensured that higher is cast into
This rate, has the advantages that process is simple, easy to operate and low cost.
Specific embodiment
Embodiment 1
High-strength thin-walled part magnesium alloy, is made up of the raw material of following mass percent：Aluminium 9%, zinc 0.3%, manganese
0.15%, balance of magnesium and impurity.
The preparation method of high-strength thin-walled part magnesium alloy, using following steps：A, by magnesium ingot in iron ware melt
Melt, b, be subsequently heated to 650 DEG C, aluminium, zinc, manganese Metal are sequentially added at this temperature；C, by magnesium alloy fused mass control 700
DEG C, stood after being stirred with argon gas；D, magnesium alloy fused mass temperature is finally down to 670 DEG C, carries out the casting of magnesium alloy ingot.
After measured, tensile strength is 280MPa to the mechanical property of the magnesium alloy, and yield strength is 180MPa.
Embodiment 2
High-strength thin-walled part magnesium alloy, is made up of the raw material of following mass percent：Aluminium 11%, zinc 0.9%, manganese
0.50%, balance of magnesium and impurity.
The preparation method of high-strength thin-walled part magnesium alloy, using following steps：A, by magnesium ingot in iron ware melt
Melt, b, be subsequently heated to 750 DEG C, aluminium, zinc, manganese Metal are sequentially added at this temperature；C, by magnesium alloy fused mass control 750
DEG C, stood after being stirred with argon gas；D, magnesium alloy fused mass temperature is finally down to 690 DEG C, carries out the casting of magnesium alloy ingot.
After measured, tensile strength is 290MPa to the mechanical property of the magnesium alloy, and yield strength is 190MPa.
Embodiment 3
High-strength thin-walled part magnesium alloy, is made up of the raw material of following mass percent：Aluminium 10.3%, zinc 0.7%,
Manganese 0.37%, balance of magnesium and impurity.
The preparation method of high-strength thin-walled part magnesium alloy, using following steps：A, by magnesium ingot in iron ware melt
Melt, b, be subsequently heated to 718 DEG C, aluminium, zinc, manganese Metal are sequentially added at this temperature；C, by magnesium alloy fused mass control 749
DEG C, stood after being stirred with argon gas；D, magnesium alloy fused mass temperature is finally down to 673 DEG C, carries out the casting of magnesium alloy ingot.
After measured, tensile strength is 287MPa to the mechanical property of the magnesium alloy, and yield strength is 185MPa.
In specific implementation process, aluminium, zinc, manganese are added with the metal of purity >=99.0%, and magnesium alloy fused mass control is in 700-
At 750 DEG C, refining agent is added, stirred 30 minutes with argon gas, stand 40 minutes again afterwards.
Claims (2)
1. a kind of high-strength thin-walled part magnesium alloy, it is characterised in that：It is made up of the raw material of following mass percent：Aluminium
9-10.3%, zinc 0.3%, manganese 0.15%, balance of magnesium and impurity.
2. the preparation method of high-strength thin-walled part magnesium alloy according to claim 1, it is characterised in that：Using as follows
Step：A, magnesium ingot is melted in iron ware, b, is subsequently heated to 650-750 DEG C, sequentially add at this temperature aluminium, zinc,
Manganese Metal；C, by magnesium alloy fused mass control at 700-750 DEG C, with argon gas stir after stand；D, finally by magnesium alloy fused mass temperature
670-690 DEG C is down to, the casting of magnesium alloy ingot is carried out.
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| CN201510053636.7A CN104593653B (en) | 2015-02-03 | 2015-02-03 | High-strength thin-walled part magnesium alloy and preparation method thereof |
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| CN104593653B true CN104593653B (en) | 2017-07-07 |
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| CN107523728A (en) * | 2016-06-20 | 2017-12-29 | 张家港市华舰五金工具有限公司 | A kind of magnesium alloy and preparation method thereof |
| CN107164673B (en) * | 2017-03-30 | 2019-04-30 | 北京大学口腔医学院 | It is a kind of to guide bone/regeneration Absorbale magnesium alloy repair system for oral cavity |
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| EP0665299B1 (en) * | 1993-12-17 | 2000-03-08 | Mazda Motor Corporation | Magnesium alloy cast material for plastic processing, magnesium alloy member using the same, and manufacturing method thereof |
| CN101220433A (en) * | 2008-01-14 | 2008-07-16 | 苏州云海镁业有限公司 | High-alumina magnesium alloy |
| CN104294123A (en) * | 2013-11-22 | 2015-01-21 | 深圳市长盈精密技术股份有限公司 | Magnesium-aluminum alloy material |
| CN103643097A (en) * | 2013-11-25 | 2014-03-19 | 简玉君 | Rare earth and magnesium alloy |
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Address after: 043800 Shanxi city of Yuncheng Province Wang Pei township of Wenxi county. Applicant after: SHANXI REGAL METAL NEW MATERIAL CO.,LTD. Address before: 043800 Shanxi city of Yuncheng Province Wang Pei township of Wenxi county. Applicant before: WENXI COUNTY REGAL MAGNESIUM Co.,Ltd. |
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Denomination of invention: Magnesium alloy for high-strength thin-walled components and its preparation method Effective date of registration: 20230919 Granted publication date: 20170707 Pledgee: Bank of China Limited Yuncheng branch Pledgor: SHANXI REGAL METAL NEW MATERIAL CO.,LTD. Registration number: Y2023140000052 |