CN101220427A - Aluminum magnesium rare earth die-casting aluminium alloy - Google Patents
Aluminum magnesium rare earth die-casting aluminium alloy Download PDFInfo
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- CN101220427A CN101220427A CNA2007100078063A CN200710007806A CN101220427A CN 101220427 A CN101220427 A CN 101220427A CN A2007100078063 A CNA2007100078063 A CN A2007100078063A CN 200710007806 A CN200710007806 A CN 200710007806A CN 101220427 A CN101220427 A CN 101220427A
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Abstract
The invention belongs to aluminum-magnesium alloy materials and relates to a novel die casting aluminum alloy which takes rare earth elements as the elements of aluminum-magnesium die casting alloy. The application has the new viewpoint of melting the rare earth elements into the aluminum alloy by taking the rare earth elements as an alloying element of the aluminum-magnesium alloy to form the aluminum-magnesium-rare earth alloy, improve the comprehensive properties of the aluminum-magnesium die casting alloy, particularly the elongation, thus being suitable for producing safety parts with the die casting technique. The invention is realized through the aluminum-magnesium alloy formed by the following ingredients by weight percentage: 0.2 to 0.4 percent of silicon, 0.15 to 0.50 percent of manganese, 1.80 to 2.30 percent of magnesium, 0.50 to 0.80 percent of iron, 0.10 to 0.30 percent of zirconium, 0.10 to 0.30 percent of strontium and at most 0.01 percent of titanium, at most 0.05 percent of copper, at most 0.05 percent of zinc and at most 0.01 percent of chromium and the other substances are aluminum and unavoidable impurities. The aluminum-magnesium die casting alloy combination of the invention can facilitate the die castings in casting states having very high ductility as well as very high tensile strength at the same time.
Description
Technical field
The invention belongs to hydronalium, be specifically related to a kind of the novel aluminium diecast alloy of rare earth element as magnalium alloy for die casting element.
Background technology
Rare earth element has exclusive physicochemical property, as: have unique 4F electronic structure, big nonmagnetic atom distance, very strong characteristics such as spin orbit coupling, when forming rare earth compounding with other element, ligancy can be 3---change between 12, and the crystalline structure of rare earth compound also is diversified, so rare earth element is widely used in the development of new material.
In the fusion process of cast aluminium alloy, rare earth element Chang Zuowei refining agent, alterant use, and rare earth element are not used as a kind of main alloy element as yet at present.
The magnalium alloy for die casting are the high-intensity aluminium diecast alloys of a class, for example XL302 of China, physical strength higher (GB/T15115-1994), and numerical value is as follows:
XL302 tensile strength sigma b=220N/mm
2, unit elongation δ=2%, Brinell hardness HS=70
The magnalium alloy for die casting of other developed country have:
The magnalium alloy for die casting G4A of the U.S.
The magnalium alloy for die casting ADC6 of Japan
The magnalium alloy for die casting GD-ALMG5SI of Germany
The magnalium alloy for die casting LM5-M of Britain
Magnalium alloy for die casting name at known these trades mark, rare earth element do not occur in the alloy composition composition, the alloy name increases rare earth element, and rare earth element is not as refining agent or alterant, but utilize rare earth element to improve the over-all properties, particularly unit elongation of magnalium alloy for die casting as alloying element.
The application's neodoxy is:
With a kind of alloy element of rare earth element as the aluminum magnesium alloy name, melting forms aluminium-magnesium rare earth alloy in aluminium alloy, improve the over-all properties, particularly unit elongation of magnalium alloy for die casting, is applicable to casting die production safety parts.
Summary of the invention
In order to satisfy some aluminum alloy part to the demanding characteristic of unit elongation, the present invention finishes by the aluminum magnesium alloy of following composition:
0.20 silicon to 0.40 weight %
0.15 manganese to 0.50 weight %
1.80 magnesium to 2.30 weight %
0.50 iron to 0.80 weight %
0.10 zirconium to 0.30 weight %
0.10 strontium to 0.30 weight %
The titanium of 0.01 weight % at the most
The copper of 0.05 weight % at the most
The zinc of 0.05 weight % at the most
The chromium of 0.01 weight % at the most
All the other are aluminium and unavoidable impurities
Utilize magnalium alloy for die casting composition of the present invention, can make the die casting that is in as cast condition have very high ductility, and have very high tensile strength simultaneously.
Die casting goes out the A type pulling force sample of this aluminum magnesium alloy, A type pulling force specimen configuration size conforms standard GB/T13822-92, and specimen finish is 6.4 ± 0.10mm, as cast condition is not carried out x-ray inspection, random sampling without any processing yet.
Test result:
Tensile strength cell mean σ b＞227N/mm
2, the maximum pulling strength that has occurred is 241N/mm
2Unit elongation mean value δ＞18.0%, wherein maximum is 21.0%, Brinell hardness＞70
Above test result shows:
Be much higher than the mechanical property of GB/T15115-94 from rare earth element as the mechanical property, particularly elongation of the aluminum magnesium rare earth die-casting alloy of alloy element to existing aluminium diecast alloy requirement.Produce a kind of novel aluminum magnesium rare earth die-casting alloy thus.
This type material is except that being applicable to pressure die casting, also can be used for permanent mold casting, lost foam casting, sand mold casting, low-pressure casting, back-pressure casting, semi-solid state die casting, investment cast etc., this alloy is mainly used on the products such as automobile, motorcycle, household electrical appliance, is particularly suitable for the production safety part.
Claims (12)
1. be used for die casting to have＞aluminum alloy part of 1.8% unit elongation in as cast condition.It is composed as follows:
0.20 silicon to 0.40 weight %
0.15 manganese to 0.50 weight %
1.80 magnesium to 2.30 weight %
0.50 iron to 0.80 weight %
0.10 zirconium to 0.30 weight %
0.10 strontium to 0.30 weight %
The titanium of 0.01 weight % at the most
The copper of 0.05 weight % at the most
The zinc of 0.05 weight % at the most
The chromium of 0.01 weight % at the most
All the other are aluminium and unavoidable impurities
2. according to the aluminium alloy of claim 1, it is characterized in that the silicon of 0.20 to 0.40 weight %
3. according to the aluminium alloy of claim 2, it is characterized in that the manganese of 0.15 to 0.50 weight %
4. according to the aluminium alloy of claim 3, it is characterized in that the magnesium of 1.80 to 2.30 weight %
5. according to the aluminium alloy of claim 4, it is characterized in that the iron of 0.50 to 0.80 weight %
6. according to the aluminium alloy of claim 5, it is characterized in that the zirconium of 0.10 to 0.30 weight %
7. according to the aluminium alloy of claim 6, it is characterized in that the strontium of 0.10 to 0.30 weight %
8. according to the aluminium alloy of claim 7, it is characterized in that the titanium of 0.01 weight % at the most
9. aluminium alloy according to Claim 8 is characterized in that the copper of 0.05 weight % at the most
10. according to the aluminium alloy of claim 9, it is characterized in that the zinc of 0.05 weight % at the most
11., it is characterized in that the chromium of 0.01 weight % at the most according to the aluminium alloy of claim 10
12. be used for the purposes of the safety component of die-casting automobile production according to the aluminium alloy of one of claim 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100078063A CN101220427A (en) | 2007-01-11 | 2007-01-11 | Aluminum magnesium rare earth die-casting aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100078063A CN101220427A (en) | 2007-01-11 | 2007-01-11 | Aluminum magnesium rare earth die-casting aluminium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101220427A true CN101220427A (en) | 2008-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100078063A Withdrawn CN101220427A (en) | 2007-01-11 | 2007-01-11 | Aluminum magnesium rare earth die-casting aluminium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101220427A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136697A (en) * | 2018-08-28 | 2019-01-04 | 兰州飞行控制有限责任公司 | A kind of high intensity aluminum bronze line aluminium alloy |
| CN110106401A (en) * | 2019-05-23 | 2019-08-09 | 上海交通大学 | A kind of high tough non-heat treated reinforcing pack alloy and preparation method thereof |
| CN114150191A (en) * | 2021-12-16 | 2022-03-08 | 山西瑞格金属新材料有限公司 | Non-heat-treated high-toughness die-casting aluminum alloy and preparation method thereof |
-
2007
- 2007-01-11 CN CNA2007100078063A patent/CN101220427A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136697A (en) * | 2018-08-28 | 2019-01-04 | 兰州飞行控制有限责任公司 | A kind of high intensity aluminum bronze line aluminium alloy |
| CN110106401A (en) * | 2019-05-23 | 2019-08-09 | 上海交通大学 | A kind of high tough non-heat treated reinforcing pack alloy and preparation method thereof |
| CN114150191A (en) * | 2021-12-16 | 2022-03-08 | 山西瑞格金属新材料有限公司 | Non-heat-treated high-toughness die-casting aluminum alloy and preparation method thereof |
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| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |