WO2012102485A2 - 다이캐스팅용 알루미늄합금 - Google Patents
다이캐스팅용 알루미늄합금 Download PDFInfo
- Publication number
- WO2012102485A2 WO2012102485A2 PCT/KR2011/009846 KR2011009846W WO2012102485A2 WO 2012102485 A2 WO2012102485 A2 WO 2012102485A2 KR 2011009846 W KR2011009846 W KR 2011009846W WO 2012102485 A2 WO2012102485 A2 WO 2012102485A2
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- WIPO (PCT)
- Prior art keywords
- aluminum alloy
- weight
- die casting
- present
- alloy
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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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
- C22C1/026—Alloys based on aluminium
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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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
Definitions
- the present invention relates to an aluminum alloy for die casting, more specifically Mn 1.0 to 5.0% by weight, Zn 0.5 to 1.5% by weight, Zr 1.0 to 2.0% by weight, Cu 0.5 to 1.5% by weight and aluminum 85 to 97% by weight It relates to an aluminum alloy for die casting.
- Aluminum alloy is light and excellent in strength, so it is widely used as a durable material. In particular, in recent years, it is widely used as a case of electronic products such as automobile parts and mobile phones.
- a die casting method as a method of manufacturing a case of an electronic product from an aluminum alloy.
- the design of the case can be freely made, since the space for the seating of the parts mounted in the case or the boss for screwing and the rib for strength reinforcement can be easily formed.
- various metals or nonmetallic components such as silicon are added to provide fluidity, and these additives rise to the surface of the alloy during the die casting process. Forming and imparting color, there is a problem that a stain is formed on the surface to obtain a beautiful surface. Therefore, even though the surface of the molded product formed by the die casting method, there is a problem that the coated surface is peeled off when used for a long time.
- the technical problem to be achieved by the present invention is not only to achieve surface stains due to the smitting of silicon during anodization after forming the product, but also to realize a uniform and beautiful color, and to increase the adhesive strength of the film, thereby improving the die casting product. It is possible to increase the durability and does not use heavy metals known to be harmful to the human body to provide an aluminum alloy for die casting that is harmless to the human body and is environmentally friendly.
- the present invention is die-casting aluminum including Mn 1.0 to 5.0% by weight, Zn 0.5 to 1.5% by weight, Zr 1.0 to 2.0% by weight, Cu 0.5 to 1.5% by weight and aluminum 85 to 97% by weight Provide an alloy.
- the present invention provides an aluminum alloy for die casting, characterized in that it further comprises 0.1 to 0.6% by weight of Si.
- the present invention provides an aluminum alloy for die casting, characterized in that it further comprises 0.5 to 1.5% by weight of Fe.
- the present invention provides an aluminum alloy for die casting, characterized in that it further comprises 0.1% by weight or less of Ni.
- the present invention provides an aluminum alloy for die casting, characterized in that it further comprises Mg 0.5 to 1% by weight.
- the present invention provides an aluminum alloy for die casting, characterized in that it further comprises 0.3 to 0.7% by weight of Ti.
- the present invention provides a die-casting aluminum alloy, characterized in that the tensile strength of the die-casting aluminum alloy ranges from 180 to 250 MPa and the elongation is in the range of 5 to 10%.
- Die casting aluminum alloy of the present invention comprises Mn 1.0 to 5.0% by weight, Zn 0.5 to 1.5% by weight, Zr 1.0 to 2.0% by weight, Cu 0.5 to 1.5% by weight and aluminum 85 to 97% by weight.
- Die casting aluminum alloy of the present invention contains Mn 1 to 5% by weight as an essential component.
- the Mn component serves to enhance the mechanical properties of the alloy through precipitation of the Mn-Al6 phase in the alloy to enhance the solid solution and disperse the fine precipitates, and preferably in the range of 1.0 to 5.0% by weight based on the total weight of the total alloy. It is preferred to be added. If the Mn component is less than 1% by weight based on the total weight of the entire alloy, the improvement of the mechanical properties is insignificant, whereas if it exceeds 5.0% by weight, surface staining occurs after anodizing.
- the die casting aluminum alloy of the present invention comprises Zn 1.0 to 1.5% by weight.
- the Zn component serves to improve the mechanical properties and is preferably added in the range of 1.0 to 1.5% by weight based on the total weight of the alloy.
- the die-cast aluminum alloy of the present invention contains Zr 1.0 to 2.0% by weight.
- the Zr component is capable of anodizing in the alloy and serves to improve grain refinement and mechanical properties, and is preferably added in the range of 1.0 to 2.0% by weight based on the total weight of the entire alloy.
- the die casting aluminum alloy of the present invention contains 0.5 to 1.5% by weight of Cu.
- the Cu component in the alloy is solid-solution in the alloy to strengthen the matrix, to prevent the sintering of the mold, and to increase the strength by excellent precipitation hardening effect at low temperature aging, preferably 0.5 to 1.5 based on the total weight of the total alloy It is preferred to add in the range by weight.
- Die casting aluminum alloy of the present invention may further comprise Si in the range of 0.1 to 0.6% by weight.
- Si (silicon) component improves the flowability of the aluminum alloy to improve the formability, while the anodizing (smut) occurs on the surface (anodizing) is difficult to coloration and decrease the strength of the film.
- the content of Si is preferably added in a range of 0.6% by weight or less based on the total weight of the entire alloy. This is because when the Si component exceeds 0.6% by weight, there is a problem of poor colorability due to occurrence of unevenness.
- the die-cast aluminum alloy of the present invention may further include Fe in the range of 0.5 to 1.5% by weight.
- the Fe component serves to reduce the tackiness in the die and to reduce the erosion of the mold in the die-casting aluminum alloy, and is preferably added in the range of 0.5 to 1.5% by weight based on the total weight of the entire alloy. If the Fe component is less than 0.5% by weight based on the total weight of the entire alloy, there is a problem that the aluminum alloy is sintered to the mold, whereas when the Fe component exceeds 1.5% by weight, the corrosion resistance and anodizing property of the aluminum alloy is lowered.
- the die-casting aluminum alloy of the present invention may further include 0.1 wt% or less of Ni.
- the Ni component serves to increase the toughness by miniaturizing the structure, preferably, it is preferably added in the range of 0.1% by weight or less based on the total weight of the entire alloy.
- the die casting aluminum alloy of the present invention may further comprise Mg in the range of 0.5 to 1% by weight.
- the Mg component facilitates corrosion resistance and anodization. Adding up to about 1% increases strength.
- the amount of the Mg component increases, such as surface staining occurs after anodizing, it is preferably added in the range of 0.5 to 1.0% by weight based on the total weight of the alloy.
- the die casting aluminum alloy of the present invention contains 0.5 wt% or less of Ti.
- the Ti component plays a role of refining the grains in the alloy, preferably, it is preferably added in the range of 0.5% by weight or less based on the total weight of the entire alloy. This is because the strength of the material is lowered when it exceeds 0.5% by weight.
- the die casting aluminum alloy of the present invention may be prepared according to a general alloy production method. That is, it can be prepared by dissolving pure aluminum and injecting a mother alloy into the pure aluminum molten metal, dissolving the molten aluminum, and then stirring and degassing the molten aluminum to obtain an aluminum alloy ingot.
- Figure 3 is a process flow chart for explaining the manufacturing process of the die-casting aluminum alloy of the present invention.
- the die-casting aluminum alloy of the present invention thus prepared has a tensile strength in the range of 180 to 250 MPa and an elongation of 5 to 10%.
- the pure aluminum and the mother alloy is prepared in advance to have a composition as shown in Table 1, after dissolving, stirring and degassing at a temperature of about 800 °C after the stabilization process aluminum alloy Ingot was obtained.
- the die casting aluminum alloy according to the present invention unlike the conventional die casting aluminum alloy, not only does not produce surface stains due to smitting of silicon during anodization after forming a product, but also enables the implementation of a uniform and beautiful color, and adhesive strength of the film. It is possible to increase the durability of the die-casting product can be increased, and do not use heavy metals known to be harmful to the human body can provide an environmentally friendly and environmentally friendly alloy.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Continuous Casting (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
Description
Claims (7)
- Mn 1.0 내지 5.0중량%, Zn 0.5 내지1.5중량%, Zr 1.0 내지 2.0중량%, Cu 0.5 내지 1.5중량% 및 알루미늄 85 내지 97중량%를 포함한 다이캐스팅용 알루미늄 합금.
- 제1항에 있어서,Si 0.1 내지 0.6중량%를 더 포함한 것을 특징으로 하는 다이캐스팅용 알루미늄 합금.
- 제1항에 있어서,Fe 0.5 내지 1.5중량%를 더 포함한 것을 특징으로 하는 다이캐스팅용 알루미늄 합금.
- 제1항에 있어서,Ni 0.1중량% 이하를 더 포함한 것을 특징으로 하는 다이캐스팅용 알루미늄 합금.
- 제1항에 있어서,Mg 0.5 내지 1중량%를 더 포함한 것을 특징으로 하는 다이캐스팅용 알루미늄 합금.
- 제1항에 있어서,Ti 0.3 내지 0.7중량%를 더 포함한 것을 특징으로 하는 다이캐스팅용 알루미늄 합금.
- 제1항에 있어서,상기 다이캐스팅용 알루미늄 합금의 인장강도는 180 내지 250 MPa 범위이고 연신율은 5 내지 10% 범위인 것을 특징으로 하는 다이캐스팅용 알루미늄 합금.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11857105.8A EP2669395B1 (en) | 2011-01-27 | 2011-12-20 | Aluminum alloy for die casting |
US13/818,118 US9045815B2 (en) | 2011-01-27 | 2011-12-20 | Aluminum alloy for die-casting |
JP2013544405A JP5719939B2 (ja) | 2011-01-27 | 2011-12-20 | ダイカスト用アルミニウム合金 |
CN201180061458.2A CN103298962B (zh) | 2011-01-27 | 2011-12-20 | 用于压铸的铝合金 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110008077A KR101055373B1 (ko) | 2011-01-27 | 2011-01-27 | 다이캐스팅용 알루미늄합금 |
KR10-2011-0008077 | 2011-01-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012102485A2 true WO2012102485A2 (ko) | 2012-08-02 |
WO2012102485A3 WO2012102485A3 (ko) | 2012-09-27 |
Family
ID=44933037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2011/009846 WO2012102485A2 (ko) | 2011-01-27 | 2011-12-20 | 다이캐스팅용 알루미늄합금 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9045815B2 (ko) |
EP (1) | EP2669395B1 (ko) |
JP (1) | JP5719939B2 (ko) |
KR (1) | KR101055373B1 (ko) |
CN (1) | CN103298962B (ko) |
WO (1) | WO2012102485A2 (ko) |
Cited By (4)
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CN103614596A (zh) * | 2013-07-16 | 2014-03-05 | 深圳市欣茂鑫精密五金制品有限公司 | 一种用于电子产品结构件的高强度铝合金及其制备方法 |
US20150096893A1 (en) * | 2013-10-07 | 2015-04-09 | Gk Corporation, Ltd. | Aluminum alloy for die-casting, metal case for portable electrical device and method of manufacturing the metal case |
JP2016541000A (ja) * | 2013-12-20 | 2016-12-28 | ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス | 最適化された計時器用バレル |
KR20210042639A (ko) | 2019-10-10 | 2021-04-20 | 주식회사 삼기 | 알루미늄 다이캐스팅 제품의 제조방법 및 이 방법에 의해 제조된 알루미늄 다이캐스팅 제품 |
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CN105316533B (zh) * | 2014-08-27 | 2017-09-08 | 深圳市欣茂鑫精密五金制品有限公司 | 一种铝合金 |
US10494702B2 (en) | 2014-08-27 | 2019-12-03 | Arconic Inc. | Aluminum casting alloys having manganese, zinc and zirconium |
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JP6865171B2 (ja) * | 2015-08-28 | 2021-04-28 | 日本発條株式会社 | 締結部材 |
US9970080B2 (en) | 2015-09-24 | 2018-05-15 | Apple Inc. | Micro-alloying to mitigate the slight discoloration resulting from entrained metal in anodized aluminum surface finishes |
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US10174436B2 (en) | 2016-04-06 | 2019-01-08 | Apple Inc. | Process for enhanced corrosion protection of anodized aluminum |
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US11242614B2 (en) | 2017-02-17 | 2022-02-08 | Apple Inc. | Oxide coatings for providing corrosion resistance on parts with edges and convex features |
KR101965418B1 (ko) | 2017-08-10 | 2019-04-03 | (주)삼기오토모티브 | 알루미늄 합금의 열처리 방법 |
US11549191B2 (en) | 2018-09-10 | 2023-01-10 | Apple Inc. | Corrosion resistance for anodized parts having convex surface features |
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- 2011-12-20 WO PCT/KR2011/009846 patent/WO2012102485A2/ko active Application Filing
- 2011-12-20 CN CN201180061458.2A patent/CN103298962B/zh not_active Expired - Fee Related
- 2011-12-20 US US13/818,118 patent/US9045815B2/en not_active Expired - Fee Related
- 2011-12-20 EP EP11857105.8A patent/EP2669395B1/en not_active Not-in-force
- 2011-12-20 JP JP2013544405A patent/JP5719939B2/ja active Active
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Cited By (7)
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CN103614596A (zh) * | 2013-07-16 | 2014-03-05 | 深圳市欣茂鑫精密五金制品有限公司 | 一种用于电子产品结构件的高强度铝合金及其制备方法 |
CN103614596B (zh) * | 2013-07-16 | 2016-03-02 | 深圳市欣茂鑫精密五金制品有限公司 | 一种用于电子产品结构件的高强度铝合金及其制备方法 |
US20150096893A1 (en) * | 2013-10-07 | 2015-04-09 | Gk Corporation, Ltd. | Aluminum alloy for die-casting, metal case for portable electrical device and method of manufacturing the metal case |
JP2016541000A (ja) * | 2013-12-20 | 2016-12-28 | ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス | 最適化された計時器用バレル |
KR20210042639A (ko) | 2019-10-10 | 2021-04-20 | 주식회사 삼기 | 알루미늄 다이캐스팅 제품의 제조방법 및 이 방법에 의해 제조된 알루미늄 다이캐스팅 제품 |
KR20210116382A (ko) | 2019-10-10 | 2021-09-27 | 주식회사 삼기 | 알루미늄 다이캐스팅 제품의 제조방법 및 이 방법에 의해 제조된 알루미늄 다이캐스팅 제품 |
DE102019130108B4 (de) | 2019-10-10 | 2023-07-13 | Samkee Automotive Co., Ltd. | Verfahren zur Herstellung eines Aluminiumgussteils und hierdurch hergestelltes Aluminiumgussteil |
Also Published As
Publication number | Publication date |
---|---|
EP2669395B1 (en) | 2015-08-12 |
US9045815B2 (en) | 2015-06-02 |
JP5719939B2 (ja) | 2015-05-20 |
WO2012102485A3 (ko) | 2012-09-27 |
CN103298962B (zh) | 2016-02-10 |
EP2669395A2 (en) | 2013-12-04 |
KR101055373B1 (ko) | 2011-08-08 |
US20130156635A1 (en) | 2013-06-20 |
EP2669395A4 (en) | 2014-09-03 |
JP2014501853A (ja) | 2014-01-23 |
CN103298962A (zh) | 2013-09-11 |
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