CN85102202A - The medium Si-Mg-Te series high strength alloy cast aluminum - Google Patents
The medium Si-Mg-Te series high strength alloy cast aluminum Download PDFInfo
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- CN85102202A CN85102202A CN 85102202 CN85102202A CN85102202A CN 85102202 A CN85102202 A CN 85102202A CN 85102202 CN85102202 CN 85102202 CN 85102202 A CN85102202 A CN 85102202A CN 85102202 A CN85102202 A CN 85102202A
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- tellurium
- aluminium alloy
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Abstract
High strength cast aluminum alloys of the present invention is on the basis of China aluminium alloy ZL104, is to have adopted the adding trace tellurium or the microalloying of tellurium and antimony or tellurium and strontium or the technical measures melting of combined microalloying to form.Be characterized in: castability is better, and melting technology is easy, and the air-breathing tendency of alloy liquid alleviates greatly, thereby makes pinhole rate than not adding the about two-stage of having alleviated of tellurium, and machinability improves and obtained high comprehensive mechanical performance.The tensile strength of aluminium alloy of the present invention improves 25%～35% than ZL104, and unit elongation improves 50%～100%.
Description
The invention belongs to cast aluminium alloy material.
Contain Si8%～10%, Mg0.2%～0.5%, all the other have obtained widespread use for the cast aluminium alloy of Al in countries in the world.The major cause why this aluminium alloy obtains widespread use is because it has following advantage: better mobile; No hot cracking tendency; Resistance to air loss is good; Linear shrinkage ratio is little; After rotten processing and thermal treatment, has comprehensive mechanical performance preferably.But the shortcoming of this alloy is: air-breathing tendency is big and be easy to form pin hole during melting, and the close property of the Cause of Nai Ya of foundry goods is relatively poor, and comprehensive mechanical performance can not satisfy the requirement of high strength, high-elongation; The machinability unanimity.
The present invention is exactly in order to develop the advantage of this alloy, to improve its shortcoming and succeed in developing.
The present invention is in China cast aluminium alloy ZL104(main component: Si8%～10.5%, and Mg0.17%～0.3%, Mn0.2%～0.5%, all the other are Al.) the basis on, add 0.001%～0.200% tellurium or add 0.001%～0.200% tellurium simultaneously and 0.1%～0.2% antimony or add 0.001%～0.200% tellurium simultaneously and 0.04%～0.08% strontium, suitably control the content of impurity element iron, manganese and develop.Cast aluminium alloy of the present invention can use general smelting equipment and industrial pure material formulated, and the scope of its chemical ingredients can be controlled in:
ZLAlSi9MgTeTi:Si8%～10%, Mg0.2%～0.5%, Ti0.1%～0.2%, Te0.001%～0.200%, all the other are Al; The impurity level of allowing is that Cu is below 0.3%, Fe (can be 1.0%～2.0%) below 0.2% when being used for die casting, Mn (can be below 0.35% when being used for die casting) below 0.1%, and Zn is below 0.5%, every kind of other impurity element be controlled at below 0.10% and total amount below 0.20%.
ZLAlSi9MgTeSbTi:Si8%～10%, Mg0.2%～0.5%, Ti0.1%～0.2%, Te0.001%～0.200%, Sb0.1%～0.2%, all the other are Al; The impurity level of allowing is that Cu is below 0.3%, Fe (can be 1.0%～2.0%) below 0.2% when being used for die casting, Mn (can be below 0.35% when being used for die casting) below 0.1%, and Zn is below 0.5%, every kind of other impurity element be controlled at below 0.10% and total amount below 0.20%.
ZLAlSi9MgTeSrTi:Si8%～10%, Mg0.2%～0.5%, Ti0.1%～0.2%, Te0.001%～0.200%, Sr0.04%～0.08%, all the other are Al; The impurity level of allowing is that Cu is below 0.3%, Fe (can be 1.0%～2.0%) below 0.2% when being used for die casting, Mn (can be below 0.35% when being used for die casting) below 0.1%, and Zn is below 0.5%, every kind of other impurity element be controlled at below 0.10% and total amount below 0.20%.
Owing in aluminium alloy of the present invention, added tellurium and the tellurium of 0.1%～0.2% antimony or 0.001%～0.200% and 0.04%～0.08% the strontium of 0.001%～0.200% tellurium or 0.001%～0.200%, so when melting, because tellurium plays the effect that purifies aluminium liquid, alleviate the air-breathing tendency of aluminium liquid, improved the flowability of alloy liquid during casting; In addition, the alloying action of tellurium or tellurium and antimony or tellurium and strontium composite alloying and rotten dual function impel the foundry goods structure refinement, and pin hole reduces, thereby the existing aluminium alloy of aluminium alloy of the present invention and China is compared, and its mechanical property has had and increases substantially.
This alloy melting is also adopted sand mold and permanent mold casting respectively, pour into the mechanical property coupon of standard, without mechanical workout, and after corresponding thermal treatment, carry out tension test, the mechanical performance index that is obtained is compared with the ZL104 of GB, and tensile strength on average improves 25～35%, unit elongation on average improves 50%～100%, reach U.S. aluminium alloy SG100A(main component: Si9%～10%, Mg0.4%～0.6%, Mn0.35%, Fe1.3%, all the other are aluminium.) performance index level during die casting, or reached the aluminium alloy SG91(main component that the U.S. forms with the melting of high purity raw material: Si8.5%～9.5%, Mg0.5%～0.7%, performance index level Ti0.20%).Obviously, die casting needs a cover mechanical means, and this starting material preparation aluminium alloy with the use value costliness is the same, and its cost is all very high.And adopt aluminium alloy of the present invention, and can adopt general smelting equipment and industrial pure material to refine and form, cost is lower and performance is higher.Aluminium alloy of the present invention also possesses some characteristics like this: good casting property; Melting technology is easy; Nuisanceless; Machinability is good; The liquid of aluminium alloy of the present invention under smelting temperature through long-time (8 hours) insulation or after three remeltings its mechanical property do not descend.
The present invention is applicable to sand mold casting, permanent mold casting, or low-pressure casting and pressure die casting.Can be used to make complex-shaped or book wall and bear the part in addition of high loading and the massive casting of the load that withstands shocks, also can be used for making the Cause of Nai Ya confidential paper or alloy cast ingot.
Claims (1)
1, high strength cast aluminum alloys, contain 8%～10% silicon in its chemical ingredients, 0.2%～0.5% magnesium, 0.1%～0.2% titanium, all the other are aluminium, feature of the present invention is to add 0.001%～0.200% tellurium or add 0.001%～0.200% tellurium and 0.1%～0.2% antimony or add 0.001%～0.200% tellurium and 0.04%～0.08% strontium in this aluminium alloy, as alloy element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85102202 CN85102202A (en) | 1985-04-01 | 1985-04-01 | The medium Si-Mg-Te series high strength alloy cast aluminum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85102202 CN85102202A (en) | 1985-04-01 | 1985-04-01 | The medium Si-Mg-Te series high strength alloy cast aluminum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85102202A true CN85102202A (en) | 1986-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85102202 Pending CN85102202A (en) | 1985-04-01 | 1985-04-01 | The medium Si-Mg-Te series high strength alloy cast aluminum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85102202A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317410C (en) * | 2005-03-09 | 2007-05-23 | 沈阳工业大学 | Abrasion resistant, heat resistant high silicone aluminium alloy and its shaping technology |
| CN102912196A (en) * | 2012-10-12 | 2013-02-06 | 宁波科达工贸有限公司 | Aluminum-silicon-magnesium cast aluminum alloy and manufacturing method thereof |
-
1985
- 1985-04-01 CN CN 85102202 patent/CN85102202A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317410C (en) * | 2005-03-09 | 2007-05-23 | 沈阳工业大学 | Abrasion resistant, heat resistant high silicone aluminium alloy and its shaping technology |
| CN102912196A (en) * | 2012-10-12 | 2013-02-06 | 宁波科达工贸有限公司 | Aluminum-silicon-magnesium cast aluminum alloy and manufacturing method thereof |
| CN102912196B (en) * | 2012-10-12 | 2015-04-08 | 宁波科达工贸有限公司 | Aluminum-silicon-magnesium cast aluminum alloy and manufacturing method thereof |
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| RJ01 | Rejection of invention patent application after publication |