US20160355908A1 - Aluminum alloy and die casting method - Google Patents
Aluminum alloy and die casting method Download PDFInfo
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- US20160355908A1 US20160355908A1 US15/222,176 US201615222176A US2016355908A1 US 20160355908 A1 US20160355908 A1 US 20160355908A1 US 201615222176 A US201615222176 A US 201615222176A US 2016355908 A1 US2016355908 A1 US 2016355908A1
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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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2007—Methods or apparatus for cleaning or lubricating moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2023—Nozzles or shot sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
Definitions
- the present invention relates to an aluminum alloy that is used for a die casting process (aluminum die casting process), and a casting method.
- a die casting process has high productivity, and is used in a wide variety of fields in which aluminum parts (e.g., automotive parts and mechanical parts) are used.
- aluminum parts e.g., automotive parts and mechanical parts
- JIS Japanese Industrial Standards
- the JIS ADC12 alloy exhibits excellent castability. However, since a product obtained by subjecting the JIS ADC12 alloy to the die casting process has a coarse needle-like metal microstructure, fracture easily occurs from the precipitates, and it is difficult to obtain sufficient strength.
- Japanese Patent No. 4970709 discloses an aluminum alloy that is used for a die casting process and exhibits high elongation in an as-cast state. In Japanese Patent No. 4970709, it is indispensable to add molybdenum to the aluminum alloy.
- An object of the invention is to provide an aluminum alloy that is used for a die casting process, and exhibits excellent internal quality, high elongation, and high strength, and a method for casting the same.
- An aluminum alloy according to one aspect of the invention includes 6.0 to 9.0 mass % of Si, 0.4 to 0.8 mass % of Mg, 0.25 to 1.0 mass % of Cu, 0.08 to 0.25 mass % of Fe, 0.6 mass % or less of Mn, 0.2 mass % or less of Ti, and 0.01 mass % or less of one element selected from the group consisting of Sr, Sb, Ca, and Na with the balance being Al and unavoidable impurities.
- a casting method includes pouring molten metal of an Al—Si—Cu—Mg-based aluminum alloy into a shot sleeve of a die casting machine, and filling a mold cavity of a center-gate die with the molten metal at a gate speed of 1 m/sec or less so as to produce a laminar flow.
- a release agent is normally applied to the inside of the mold cavity or the like when implementing a die casting process.
- a solution-type release agent e.g., oily release agent or water-soluble release agent
- a powdery release agent suppresses a decrease in die temperature.
- the above alloy composition is selected for the reasons described below.
- the Si content must be 6 mass % or more in order to obtain fluidity during casting.
- the Si content is set to achieve a hypo-eutectic region.
- the Si content is preferably set to 6.0 to 9.0 mass %.
- Mg and Cu are required to provide the aluminum alloy with high strength.
- the Mg content is preferably set to 0.4 to 0.8 mass %, and the Cu content is preferably set to 0.25 to 1.0 mass %.
- Fe improves toughness when the Fe content is low. If the Fe content exceeds 0.25 mass %, a decrease in ductility may occur.
- Fe is easily mixed as impurities. It is necessary to increase the purity of the master alloy (i.e., an increase in cost occurs) in order to reduce the Fe content.
- the Fe content is preferably set to 0.08 to 0.25 mass %.
- the Mn content is preferably set to 0.6 mass % or less.
- Ti is effective for achieving the refinement of crystal grains during casting. Ti may be added in a ratio of 0.2 mass % or less.
- a small amount of B is included in the aluminum alloy when Ti is added to the master alloy.
- an F material obtained by air-cooling the product obtained by the die casting process, or a T5 material obtained by tempering the F material exhibits improved strength, and it is unnecessary to use a T6 treatment that increases cost.
- molten metal of an Al—Si—Cu—Mg-based aluminum alloy into a shot sleeve of a die casting machine, and fill the mold cavity of a center-gate die with the molten metal at a gate speed of 1 m/sec or less so as to produce a laminar flow.
- the type of the die casting machine is not particularly limited as long as the center gate can be provided to the die.
- Zn, Ni, Sn, Cr, and the like are considered to be unavoidable impurities. These elements may be included in the aluminum alloy each in a ratio of 0.03 mass % or less.
- the aluminum alloy having the chemical composition according to the invention exhibits fluidity due to Si, exhibits improved strength due to Mg and Cu, has a lower Fe content as compared with a known aluminum alloy, and exhibits improved elongation through modification with Sr and the like. Therefore, the aluminum alloy exhibits high strength without the need for a T6 treatment.
- FIGS. 1A and 1B illustrate the chemical components of aluminum alloys subjected to evaluation, and the evaluation results.
- FIGS. 2A and 2B illustrate a photograph of the structure of the aluminum alloy obtained in Example 1.
- FIG. 3A illustrates a photograph of the structure of the aluminum alloy obtained in Comparative Example 1
- FIG. 3B illustrates a photograph of the structure of the aluminum alloy obtained in Comparative Example 6
- FIG. 3C illustrates a photograph of the structure of the aluminum alloy obtained in Comparative Example 10.
- FIGS. 4A to 4D illustrate an example of the shape of a cast product.
- FIG. 5 schematically illustrates the principle of a die casting process.
- FIG. 6 illustrates an example of a die structure in which an intermediate die is provided between a stationary die and a movable die.
- Molten metal of each aluminum alloy including the chemical components listed in FIG. 1A (having the composition listed in FIG. 1A ) was prepared, and subjected to a die casting process to produce a product. It may be possible to add one element among Sb, Ca, and Na in ratio of 0.01 mass % or less instead of Sr in FIG. 1A , since Sb, Ca, or Na has the same effect as Sr.
- a JIS No. 14 proportional test piece was cut from the product, and the mechanical properties were evaluated using the test piece.
- the die casting process was performed at a gate speed as low as 1 m/sec or less so as to produce a laminar flow.
- a heat treatment (T5) was then performed at 180° C. for 180 minutes.
- FIG. 6 illustrates an example of the die structure.
- the target values are specified for the mechanical properties (tensile strength, yield strength (0.2%), and elongation).
- Comparative Example 2 good strength was obtained by a T6 treatment, but the elongation was lower than the target value, and an increase in cost occurs due to the T6 treatment.
- FIGS. 2A and 2B illustrate a photograph of the metal structure obtained in Example 1
- FIG. 3A illustrates a photograph of the metal structure obtained in Comparative Example 1
- FIG. 3B illustrates a photograph of the metal structure obtained in Comparative Example 6
- FIG. 3C illustrates a photograph of the metal structure obtained in Comparative Example 10.
- the die structure is described below.
- a cavity 13 is formed by a stationary die 11 and a movable die 12 .
- molten metal is poured into a sleeve 14 , and injected into the cavity 13 .
- Die casting machines are classified into a horizontal die casting machine and a vertical die casting machine.
- a horizontal die casting machine is mainly used at present from the viewpoint of productivity and the like.
- Horizontal die casting machines are classified into an under-gate die casting machine (in which the gate is provided on the lower side) (see FIG. 5 ) and a center-gate die casting machine (in which the gate is provided at the center).
- FIGS. 4A to 4D cross-sectional views
- a center-gate die it is preferable to use a center-gate die, and fill the cavity with the molten metal at a gate speed (i.e., the speed at which the molten metal passes through the runner gate of the die) of 1 m/sec or less so as to produce a laminar flow.
- a gate speed i.e., the speed at which the molten metal passes through the runner gate of the die
- a center-gate die casting machine in which the gate is provided at the center may also be used (not illustrated in the drawings).
- a die structure is formed so that an intermediate die 15 is provided between the stationary die 11 and the movable die 12 (see FIG. 6 )
- the aluminum alloy according to the invention exhibits high strength without the need for a T6 treatment and can be applied to various automotive parts and various mechanical parts.
- the aluminum alloy according to the invention exhibits excellent die castability, and achieves high productivity.
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Abstract
Description
- This application is a continuation of International Patent Application No. PCT/JP2014/084505, having an international filing date of Dec. 26, 2014, which designated the United States, the entirety of which is incorporated herein by reference. Japanese Patent Application No. 2014-071281 filed on Mar. 31, 2014 is also incorporated herein by reference in its entirety.
- The present invention relates to an aluminum alloy that is used for a die casting process (aluminum die casting process), and a casting method.
- A die casting process has high productivity, and is used in a wide variety of fields in which aluminum parts (e.g., automotive parts and mechanical parts) are used.
- An aluminum alloy that is equivalent to a Japanese Industrial Standards (JIS) ADC12 alloy is generally used as an aluminum alloy used for the die casting process.
- The JIS ADC12 alloy exhibits excellent castability. However, since a product obtained by subjecting the JIS ADC12 alloy to the die casting process has a coarse needle-like metal microstructure, fracture easily occurs from the precipitates, and it is difficult to obtain sufficient strength.
- Therefore, it is necessary to increase the thickness of the product from the viewpoint of safety.
- When a T6 treatment is employed to improve strength, an increase in cost occurs.
- Moreover, when producing a product that partially has a large thickness, deformation may occur due to thermal strain.
- Japanese Patent No. 4970709 discloses an aluminum alloy that is used for a die casting process and exhibits high elongation in an as-cast state. In Japanese Patent No. 4970709, it is indispensable to add molybdenum to the aluminum alloy.
- An object of the invention is to provide an aluminum alloy that is used for a die casting process, and exhibits excellent internal quality, high elongation, and high strength, and a method for casting the same.
- An aluminum alloy according to one aspect of the invention includes 6.0 to 9.0 mass % of Si, 0.4 to 0.8 mass % of Mg, 0.25 to 1.0 mass % of Cu, 0.08 to 0.25 mass % of Fe, 0.6 mass % or less of Mn, 0.2 mass % or less of Ti, and 0.01 mass % or less of one element selected from the group consisting of Sr, Sb, Ca, and Na with the balance being Al and unavoidable impurities.
- A casting method according to another aspect of the invention includes pouring molten metal of an Al—Si—Cu—Mg-based aluminum alloy into a shot sleeve of a die casting machine, and filling a mold cavity of a center-gate die with the molten metal at a gate speed of 1 m/sec or less so as to produce a laminar flow.
- A release agent is normally applied to the inside of the mold cavity or the like when implementing a die casting process. A solution-type release agent (e.g., oily release agent or water-soluble release agent) may be used when implementing the casting method.
- In the invention, it is preferable to apply a powdery release agent to the inside of the mold cavity.
- A powdery release agent suppresses a decrease in die temperature.
- The above alloy composition is selected for the reasons described below.
- The Si content must be 6 mass % or more in order to obtain fluidity during casting. In the invention, the Si content is set to achieve a hypo-eutectic region.
- When the Si content is set to achieve a hypo-eutectic region, the precipitation of coarse Si primary crystals and fracture therefrom rarely occur. Therefore, it is possible to obtain an elongation that is required to provide the aluminum alloy with good mechanical properties.
- Therefore, the Si content is preferably set to 6.0 to 9.0 mass %.
- Mg and Cu are required to provide the aluminum alloy with high strength. The Mg content is preferably set to 0.4 to 0.8 mass %, and the Cu content is preferably set to 0.25 to 1.0 mass %.
- Fe improves toughness when the Fe content is low. If the Fe content exceeds 0.25 mass %, a decrease in ductility may occur.
- Fe is easily mixed as impurities. It is necessary to increase the purity of the master alloy (i.e., an increase in cost occurs) in order to reduce the Fe content.
- Therefore, the Fe content is preferably set to 0.08 to 0.25 mass %.
- The addition of a small amount of Mn is effective for preventing the alloy from burning and sticking together with the mold during the die casting process.
- When Mn is added to the aluminum alloy, the Mn content is preferably set to 0.6 mass % or less.
- The addition of a small amount of Sr, Sb, Ca, or Na (modifier) is effective for achieving the refinement of eutectic silicon.
- It is preferable to add one element among Sr, Sb, Ca, and Na in ratio of 0.01 mass % or less.
- Ti is effective for achieving the refinement of crystal grains during casting. Ti may be added in a ratio of 0.2 mass % or less.
- A small amount of B is included in the aluminum alloy when Ti is added to the master alloy.
- When the aluminum alloy having the above structure is used, an F material obtained by air-cooling the product obtained by the die casting process, or a T5 material obtained by tempering the F material exhibits improved strength, and it is unnecessary to use a T6 treatment that increases cost.
- It is also effective to reduce internal defects of the cast product in order to reduce the thickness of the cast product.
- Therefore, it is preferable to pour molten metal of an Al—Si—Cu—Mg-based aluminum alloy into a shot sleeve of a die casting machine, and fill the mold cavity of a center-gate die with the molten metal at a gate speed of 1 m/sec or less so as to produce a laminar flow.
- The type of the die casting machine is not particularly limited as long as the center gate can be provided to the die.
- It is preferable to maintain the die temperature when casting a product having a small thickness. Therefore, it is preferable to use a powdery release agent that exhibits thermal insulation properties rather than a water-soluble release agent.
- In the invention, Zn, Ni, Sn, Cr, and the like are considered to be unavoidable impurities. These elements may be included in the aluminum alloy each in a ratio of 0.03 mass % or less.
- The aluminum alloy having the chemical composition according to the invention exhibits fluidity due to Si, exhibits improved strength due to Mg and Cu, has a lower Fe content as compared with a known aluminum alloy, and exhibits improved elongation through modification with Sr and the like. Therefore, the aluminum alloy exhibits high strength without the need for a T6 treatment.
- Therefore, it is possible to reduce or suppress an increase in cost that may occur when a T6 treatment is used, and eliminate the occurrence of thermal strain due to quenching, so that the dimensional accuracy of a product having a small thickness can be improved.
- It is possible to improve internal quality by employing the laminar flow die casting process. It is possible to further improve internal quality by employing the center-gate die design.
- Note that it is preferable to provide an intermediate die between a movable die and a stationary die when casting an undercut product.
-
FIGS. 1A and 1B illustrate the chemical components of aluminum alloys subjected to evaluation, and the evaluation results. -
FIGS. 2A and 2B illustrate a photograph of the structure of the aluminum alloy obtained in Example 1. -
FIG. 3A illustrates a photograph of the structure of the aluminum alloy obtained in Comparative Example 1,FIG. 3B illustrates a photograph of the structure of the aluminum alloy obtained in Comparative Example 6, andFIG. 3C illustrates a photograph of the structure of the aluminum alloy obtained in Comparative Example 10. -
FIGS. 4A to 4D illustrate an example of the shape of a cast product. -
FIG. 5 schematically illustrates the principle of a die casting process. -
FIG. 6 illustrates an example of a die structure in which an intermediate die is provided between a stationary die and a movable die. - The aluminum alloy and the casting method according to the invention are further described below.
- Molten metal of each aluminum alloy including the chemical components listed in
FIG. 1A (having the composition listed inFIG. 1A ) was prepared, and subjected to a die casting process to produce a product. It may be possible to add one element among Sb, Ca, and Na in ratio of 0.01 mass % or less instead of Sr inFIG. 1A , since Sb, Ca, or Na has the same effect as Sr. - A JIS No. 14 proportional test piece was cut from the product, and the mechanical properties were evaluated using the test piece.
- The die casting process was performed at a gate speed as low as 1 m/sec or less so as to produce a laminar flow.
- A heat treatment (T5) was then performed at 180° C. for 180 minutes.
-
FIG. 6 illustrates an example of the die structure. - The evaluation results are listed in
FIG. 1B (table). - In
FIG. 1B , the target values are specified for the mechanical properties (tensile strength, yield strength (0.2%), and elongation). - In Examples 1 to 12, the content of each chemical component was set to be within the specific target range, and good mechanical properties were obtained.
- Since good mechanical properties were obtained by the T5 heat treatment, it is possible to reduce cost.
- In Comparative Examples 1 to 3, the elongation was lower than the target value since a modification was not applied.
- In Comparative Example 2, good strength was obtained by a T6 treatment, but the elongation was lower than the target value, and an increase in cost occurs due to the T6 treatment.
- In Comparative Example 4, good mechanical properties were obtained. However, since a T6 treatment was applied, an increase in cost occurs.
- In Comparative Example 5, good mechanical properties were not obtained by a T5 treatment since the Cu content was low.
- In Comparative Example 6, the elongation was lower than the target value since a modification was not applied, and the Cu content and the Si content were outside the specific ranges.
- Since the Mn content was high in Comparative Example 6, coarse crystallized products were formed, and the elongation was lower than the target value.
- Since a T6 treatment is required in Comparative Example 6, an increase in cost occurs.
- In Comparative Example 7, the elongation was lower than the target value since a modification was not applied, and the Cu content and the Si content were outside the specific ranges.
- Since the Mn content was high in Comparative Example 7, coarse crystallized products were observed, and the elongation was lower than the target value.
- In Comparative Example 8, since the Cu content was outside the specific range, and the Mn content was high, coarse crystallized products were observed, and the elongation was lower than the target value.
- In Comparative Example 9, good mechanical properties were not obtained since the Cu content was low.
- In Comparative Example 10, a T6 treatment was applied (i.e., an increase in cost occurs).
- In Comparative Example 11, good mechanical properties were not obtained since the Mg content was low.
- In Comparative Example 12, a T6 treatment was applied (i.e., an increase in cost occurs).
-
FIGS. 2A and 2B illustrate a photograph of the metal structure obtained in Example 1,FIG. 3A illustrates a photograph of the metal structure obtained in Comparative Example 1,FIG. 3B illustrates a photograph of the metal structure obtained in Comparative Example 6 andFIG. 3C illustrates a photograph of the metal structure obtained in Comparative Example 10. - It was confirmed that eutectic silicon was refined when the aluminum alloy according to the invention was used.
- The die structure is described below.
- As illustrated in
FIG. 5 (schematic view), a cavity 13 is formed by astationary die 11 and amovable die 12. When implementing the die casting process, molten metal is poured into a sleeve 14, and injected into the cavity 13. - Die casting machines are classified into a horizontal die casting machine and a vertical die casting machine. A horizontal die casting machine is mainly used at present from the viewpoint of productivity and the like.
- Horizontal die casting machines are classified into an under-gate die casting machine (in which the gate is provided on the lower side) (see
FIG. 5 ) and a center-gate die casting machine (in which the gate is provided at the center). - For example, when producing a cylindrical product and the like illustrated in
FIGS. 4A to 4D (cross-sectional views), it is possible to suppress the occurrence of segregation and obtain excellent internal quality by injecting the molten metal into the cavity at a position corresponding to the center of the product (see the die structure illustrated inFIG. 6 ). - Therefore, it is preferable to use a center-gate die, and fill the cavity with the molten metal at a gate speed (i.e., the speed at which the molten metal passes through the runner gate of the die) of 1 m/sec or less so as to produce a laminar flow.
- Note that a center-gate die casting machine in which the gate is provided at the center may also be used (not illustrated in the drawings). When a die structure is formed so that an
intermediate die 15 is provided between thestationary die 11 and the movable die 12 (seeFIG. 6 ), it is possible to form a center-gate die having a center gate 11 a using an under-gate die casting machine (in which the gate is provided on the lower side) by providing a runner between thestationary die 11 and theintermediate die 15. - It is possible to produce products having various shapes (see
FIGS. 4A to 4D ) by utilizing such a die structure that includes three split dies. - The aluminum alloy according to the invention exhibits high strength without the need for a T6 treatment and can be applied to various automotive parts and various mechanical parts. The aluminum alloy according to the invention exhibits excellent die castability, and achieves high productivity.
Claims (5)
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JP2016102246A (en) * | 2014-11-28 | 2016-06-02 | アイシン軽金属株式会社 | Aluminum alloy for die casting excellent in ductility and cast product using the same |
CN108103330A (en) * | 2017-12-18 | 2018-06-01 | 广州致远新材料科技有限公司 | A kind of preparation method of die-cast aluminum alloy material |
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US11584977B2 (en) * | 2015-08-13 | 2023-02-21 | Alcoa Usa Corp. | 3XX aluminum casting alloys, and methods for making the same |
US20230068164A1 (en) * | 2015-08-13 | 2023-03-02 | Alcoa Usa Corp. | 3xx aluminum casting alloys, and methods for making the same |
US20190136349A1 (en) * | 2016-03-31 | 2019-05-09 | Rio Tinto Alcan International Limited | Aluminum Alloys Having Improved Tensile Properties |
US11198925B2 (en) * | 2016-03-31 | 2021-12-14 | Rio Tinto Alcan International Limited | Aluminum alloys having improved tensile properties |
CN108655365A (en) * | 2017-03-28 | 2018-10-16 | 布伦斯威克公司 | Method and alloy for the low-pressure permanent mould without coating |
CN110709526A (en) * | 2017-06-23 | 2020-01-17 | 株式会社大纪铝工业所 | Aluminum alloy and aluminum alloy cast product |
CN111108224A (en) * | 2017-09-20 | 2020-05-05 | 爱信轻金属株式会社 | Aluminum alloy for die casting and functional component using same |
US11286542B2 (en) | 2017-09-20 | 2022-03-29 | Aisin Keikinzoku Co., Ltd. | Aluminum alloy for die casting and functional component using the same |
CN110669965A (en) * | 2019-11-29 | 2020-01-10 | 礼德新能源江苏有限公司 | Preparation process of solar aluminum alloy section |
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Also Published As
Publication number | Publication date |
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JPWO2015151369A1 (en) | 2017-04-13 |
US11359264B2 (en) | 2022-06-14 |
US20200232069A1 (en) | 2020-07-23 |
WO2015151369A1 (en) | 2015-10-08 |
JP6495246B2 (en) | 2019-04-03 |
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