CN103911528A - High corrosion resistance aluminum alloy for die-casting process - Google Patents
High corrosion resistance aluminum alloy for die-casting process Download PDFInfo
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- CN103911528A CN103911528A CN201310003747.8A CN201310003747A CN103911528A CN 103911528 A CN103911528 A CN 103911528A CN 201310003747 A CN201310003747 A CN 201310003747A CN 103911528 A CN103911528 A CN 103911528A
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Abstract
The invention relates to a die-casting alloy based on aluminum, wherein the alloy has characteristics of improved corrosion resistance and good die-casting property, and contains at least 87 wt% of aluminum, about 8.5-12.0 wt% of silicon, about 0.03-0.08 wt% of copper, about 0.3-0.5 wt% of iron, and about 0.05-0.2 wt% of molybdenum.
Description
Technical field
The present invention relates to aluminium alloy, more specifically, relate to cast aluminium alloy, especially for the cast aluminium alloy of die casting (pressure-die casting).
Background technology
The gross weight of die casting aluminium product exceedes the gross weight of being combined the aluminum alloy casting of preparation by whole other foundry engieerings.The use of aluminium alloy in die casting is than other base metal is more frequent arbitrarily.Such as, being widely used in various goods (shell of machine part, machine, electronic product, instrument etc.) of aluminium diecast alloy can be at least partly owing to high dimensional accuracy and the level and smooth and attractive casting surface of aluminium diecast alloy under casting condition.
Although many known cast aluminium alloys have the acceptable erosion resistance of medium severe environment, but known cast aluminium alloy, particularly known aluminium diecast alloy, is inadequate to the corrosion-resistant of some high corrosion environment.For example, aluminium casting for the outside automobile application of high corrosion finally often has obvious corrosion, conventionally be exposed to extreme temperature, water, snow, ice and humidity at described automobile application medium casting, and cause the material of corrosion, for example salt, dust and can retain the road dirt of moisture and salt.
The aluminum-silicon alloy that is most commonly used to die casting is alloy 380.0 and modification thereof.Described alloy 380.0 families have the balanced combination of low cost, intensity and erosion resistance, and realize well the required high workability of die casting and without red brittleness.Described 380.0 alloys and other aluminium diecast alloy comprise iron and copper conventionally, and wherein iron level is about 1.0-1.3 % by weight, and copper content is about 2.0-4.0 % by weight.Adding iron is in order to improve heat resistanceheat resistant lancinating and reduce the trend of mould adhesion or welding in press casting procedure.Adding copper is machinability, intensity and the hardness in order to improve foundry goods.But iron and copper have reduced the resistance to general corrosion of alloy conventionally.Therefore, 380.0 families of described aluminium alloy do not have high corrosion resistance, and are not suitable for some automobile application, for example, be arranged on the exposed component in automobile engine nacelle.Therefore, described known aluminium diecast alloy is not especially well suitable for these application, in described application, need to use the die casting aluminium parts with following characteristic, described die casting aluminium parts keep the good outward appearance not being corroded after being exposed to highly corrosive environments for a long time.
People wish the corrosion-resistant and aluminium diecast alloy with sufficient intensity of a kind of height for the manufacture of the trolley part being arranged in vehicle engine compartments very much, and such as, for the parts of outdoor application (light fixture, electronic product casing, shell (telephone cases) etc.).
Summary of the invention
The present invention relates to aluminium alloy, this aluminium alloy has improved erosion resistance and excellent strength characteristics, and particularly elongation property increases.Aluminium alloy of the present invention is characterised in that, its copper content is lower, iron level is lower, the feedstock characteristic that silicone content is enough to make it have excellent mobility, heat resistanceheat resistant lancinating and is suitable for well die casting, and its molybdenum content is enough to input excellent mechanical properties and prevents from adhering or being accumulated on the surface of steel die through the aluminium alloy of casting.
An embodiment of the invention are the alloy for die casting based on aluminium, and it has the iron of the copper of the silicon of the aluminium of at least 87 % by weight, about 8.5-12.0 % by weight, about 0.03-0.08 % by weight, about 0.3-0.5 % by weight and the molybdenum of about 0.05-0.2 % by weight.
Those skilled in the art can further understand and know from experience these and other feature of the present invention, advantage and object by reference to following specification sheets and claims.
detailed Description Of The Invention
According to principle of the present invention, for example, with the aluminium alloy of known conventional (380.0,383,360 with 413 alloys) compare, the aluminium diecast alloy with the die casting character of improved erosion resistance and excellence has lower iron and copper content, this iron and copper content can effectively be realized enhanced corrosion resistance, described aluminium diecast alloy has relatively high silicon and molybdenum content simultaneously, this silicon and molybdenum content can make it have good die casting effectively, have the excellent in strength that is suitable for various automobiles and other outside/outdoor utility simultaneously.
The silicone content of aluminium alloy of the present invention is generally about 8.5-12 % by weight, to make it have suitable mobility, heat resistanceheat resistant lancinating, wear resistance and feedstock characteristic.More preferably, described silicone content is about 9.5-12 % by weight.
In order to improve heat resistanceheat resistant lancinating, and the trend that reduces mould adhesion or weld in press casting procedure, routine casting aluminium alloy comprises the iron of higher amount conventionally, and its content is 1.0-1.3 % by weight.In the present invention, the appropriate amount of iron is about 0.3-0.5 % by weight, preferred about 0.4-0.5 % by weight.
In order to improve machinability, intensity and the hardness of foundry goods, routine casting aluminium alloy comprises the copper of higher amount conventionally.But copper has reduced resistance to general corrosion, therefore, the copper content lower (if present) in aluminium alloy of the present invention.In order to realize excellent erosion resistance, the copper content of aluminium alloy of the present invention is generally and is no more than 0.08 % by weight, preferred about 0.03-0.08 % by weight.
In the present invention, the appropriate amount of molybdenum is about 0.05-0.2 % by weight.Molybdenum plays the effect of the properties-correcting agent of aluminium, and helps minimizing aluminium to be welded on the lip-deep phenomenon of steel die.
The content of manganese and magnesium is respectively done for oneself about 0.25-0.5 % by weight to strengthen intensity, more preferably from about 0.3-0.5 % by weight, most preferably from about 0.4% manganese.Contain compared with the advantage of high Mn content and be that manganese and magnesium combine to guarantee alloy stability greatly.Therefore the combination of bi-material has improved alloy rigidity and has contributed to its welding characteristic.
In described alloy, also can there is zinc, tin, nickel, chromium and the titanium of small amount.Zinc is preferably about 0.1-0.2 % by weight.The content of tin, nickel and chromium can be at most 0.05 % by weight.In described alloy, the content of titanium can be 0.03-0.19 % by weight.Other element is undesirable, and its content is preferably and is less than 0.1 % by weight, is more preferably less than 0.03 % by weight.
The surplus of aluminium alloy can be aluminium.Aluminium diecast alloy of the present invention for example contains, than the higher aluminium content of standard aluminum alloy (380, its aluminium content is 82 % by weight), and its thermal conductivity of result is than the thermal conductivity of alloy 380.0 high about 20%.In addition, alloy of the present invention can process to realize the thermal conductivity than the thermal conductivity of 380.0 alloys high about 40% by heat of liquid isostatic pressing.Alloy of the present invention comprises the aluminium of at least 87 % by weight conventionally, more preferably at least 88 % by weight, most preferably at least 89 % by weight.
Although corrosion resistant aluminum alloy of the present invention is mainly used in the corrosion-resistant parts of die casting by expection, described alloy is also applicable to permanent mo(u)ld technique and semipermanent moulding process.Die casting, permanent mo(u)ld and semipermanent forming operation are all that industrial circle is known, and therefore do not describe herein.
We also find, aluminium alloy of the present invention has improved elongation with the alloy phase ratio of alloy 380.0 and other highly corrosion resistant.This makes for example,, before () die casting threaded hole generation thread failure in described goods, can make screw enter die cast product with higher torque level.
Implement people of the present invention and it will be understood by those skilled in the art that to carry out various amendments and improvement and can not depart from the spirit of disclosed concept the present invention.The explanation widely that scope required for protection is allowed by claims and law is determined.
Claims (9)
1. the alloy based on aluminium, it comprises:
At least about the aluminium of 87 % by weight;
The silicon of about 8.5-12 % by weight;
The copper of about 0.03-0.08 % by weight;
The iron of about 0.3-0.5 % by weight; And
The molybdenum of about 0.05-0.2 % by weight.
2. alloy as claimed in claim 1, is characterized in that, the content of described silicon is about 9.5-12 % by weight.
3. alloy as claimed in claim 2, is characterized in that, the content of described iron is about 0.4-0.5 % by weight.
4. alloy as claimed in claim 1, is characterized in that, the content of described iron is about 0.4-0.5 % by weight.
5. alloy as claimed in claim 1, is characterized in that, the content of described copper is about 0.03 % by weight.
6. alloy as claimed in claim 1, is characterized in that:
The content of described silicon is about 9.5-12 % by weight;
The content of described copper is about 0.03 % by weight; And
The content of described iron is about 0.4-0.5 % by weight.
7. alloy as claimed in claim 6, this alloy also comprises manganese, and the content of described manganese is about 0.25-0.5 % by weight.
8. alloy as claimed in claim 7, this alloy also comprises magnesium, and the content of described magnesium is about 0.25-0.5 % by weight.
9. alloy as claimed in claim 8, is characterized in that, the content of described magnesium is about 0.40 % by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003747.8A CN103911528A (en) | 2013-01-06 | 2013-01-06 | High corrosion resistance aluminum alloy for die-casting process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310003747.8A CN103911528A (en) | 2013-01-06 | 2013-01-06 | High corrosion resistance aluminum alloy for die-casting process |
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| CN103911528A true CN103911528A (en) | 2014-07-09 |
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| CN201310003747.8A Pending CN103911528A (en) | 2013-01-06 | 2013-01-06 | High corrosion resistance aluminum alloy for die-casting process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022203679A1 (en) | 2022-04-12 | 2023-10-12 | Zf Friedrichshafen Ag | Aluminum alloy |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19829757A1 (en) * | 1998-07-03 | 2000-01-05 | Stockhausen Chem Fab Gmbh | Aqueous adhesive dispersions and their use in the production of multilayer papers |
| CN1737176A (en) * | 2004-06-29 | 2006-02-22 | 莱茵费尔登炼铝厂有限责任公司 | Aluminum diecasting alloy |
| EP1728822A1 (en) * | 2005-05-30 | 2006-12-06 | Nanocyl S.A. | Nanocomposite and process for producing the same |
| CN1320144C (en) * | 2003-01-23 | 2007-06-06 | 莱茵费尔登炼铝厂有限责任公司 | Casting alloy |
| EP2471966A1 (en) * | 2010-12-17 | 2012-07-04 | Trimet Aluminium AG | Easily castable, ductile AlSi alloy and method for producing a cast component using the AlSi cast alloy |
-
2013
- 2013-01-06 CN CN201310003747.8A patent/CN103911528A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19829757A1 (en) * | 1998-07-03 | 2000-01-05 | Stockhausen Chem Fab Gmbh | Aqueous adhesive dispersions and their use in the production of multilayer papers |
| CN1320144C (en) * | 2003-01-23 | 2007-06-06 | 莱茵费尔登炼铝厂有限责任公司 | Casting alloy |
| CN1737176A (en) * | 2004-06-29 | 2006-02-22 | 莱茵费尔登炼铝厂有限责任公司 | Aluminum diecasting alloy |
| EP1728822A1 (en) * | 2005-05-30 | 2006-12-06 | Nanocyl S.A. | Nanocomposite and process for producing the same |
| EP2471966A1 (en) * | 2010-12-17 | 2012-07-04 | Trimet Aluminium AG | Easily castable, ductile AlSi alloy and method for producing a cast component using the AlSi cast alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022203679A1 (en) | 2022-04-12 | 2023-10-12 | Zf Friedrichshafen Ag | Aluminum alloy |
| WO2023198543A1 (en) * | 2022-04-12 | 2023-10-19 | Zf Friedrichshafen Ag | Aluminium alloy |
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Application publication date: 20140709 |