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1.发明公开公开(公告)号：US20240301535A1
公开(公告)日：2024-09-12
申请号：US18233911
申请日：2023-08-15
CPC classification number: C22C21/02 , B22D17/00 , B22D21/007 , C22C1/026
Abstract: A high strength and toughness die-casting aluminum alloy without heat treatment, a preparation method and an article thereof are provided. Aluminum alloy includes the following components in percentage by mass: 7.0-10.0 wt. % of silicon, not more than 0.05 wt. % of copper, not more than 0.4 wt. % of magnesium, 0.3-0.7 wt. % of manganese, not more than 0.2 wt. % of iron, not more than 0.07 wt. % of zinc, not more than 0.2 wt. % of titanium, 0.015-0.03 wt. % of strontium, 0.01-0.1 wt. % of vanadium, 0.01-0.1 wt. % of zirconium, and other unavoidable impurity elements, each not more than 0.05 wt. %. The total amount of other unavoidable impurity elements is not more than 0.25 wt. %, and the rest is aluminum.
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公开(公告)号：US20240191326A1
公开(公告)日：2024-06-13
申请号：US18064980
申请日：2022-12-13
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Liang Wang , Daniel J. Wilson , Dale A. Gerard , Devin R. Hess , Paul Boone
CPC classification number: C22C21/02 , B22D17/00 , B22D21/007
Abstract: An aluminum alloy for high pressure die casting of ultra-large vehicle body structures. The aluminum alloy includes about 4.00 to about 12.00 weight percent silicon (Si); about 0.20 weight percent maximum (Max) copper (Cu); about 0.40 weight percent Max magnesium (Mg); about 0.20 to about 0.60 weight percent iron (Fe); about 1.00 weight percent Max manganese (Mn); about 0.50 weight percent Max zinc (Zn); about 0.02 weight percent Max strontium (Sr); about 0.50 weight percent Max cerium (Ce); about 0.01 weight Max percent boron (B); and a remaining weight percent aluminum (Al). The aluminum alloy provides an as-cast yield strength of greater than 130 Megapascals (MPa), ultimate tensile strength of greater than 260 MPa, and elongation of greater than 6% without the need for heat treatment.
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公开(公告)号：US20240139802A1
公开(公告)日：2024-05-02
申请号：US18547906
申请日：2022-02-04
Applicant: SCHAUFLER TOOLING GMBH & CO. KG
Inventor： Siegfried Heinrich
CPC classification number: B22D17/22 , B22D17/002
Abstract: A die casting mold includes a mold frame with at least two mold inserts and with at least one slider, the mold frame comprising a frame pocket for arranging the at least two mold inserts and the at least one slider, the at least two mold inserts delimiting a cavity with an undercut corresponding to the at least one slider, the mold frame comprising a first and a second mold frame halves disposed on opposite sides of a parting plane. At least one of the first and the second mold frame halves is formed by a plurality of mold frame parts connected to one another in a form-fitting manner, one of the plurality of mold frame parts having a locking surface, which, as viewed along a locking axis, is effective as a slider lock against a displacement of the at least one slider directed outwardly as viewed from the cavity.
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公开(公告)号：US11898224B2
公开(公告)日：2024-02-13
申请号：US16962224
申请日：2019-08-14
Applicant: ZHUHAI RUNXINGTAI ELECTRICAL CO., LTD
Inventor： Huaide Ren , Jicheng Wang , Gunan Li , Jie Tan , Ying Zhang , Mingfeng Wang
CPC classification number: C22C21/02 , B22D17/007 , C22C1/06 , C22C1/1036 , C22C1/12 , C22C1/1073
Abstract: The present invention provides a high thermal conductivity aluminum alloy, which comprises the following components in percentage by weight: Al: 80%-90%; Si: 6.5%-8.5%; Fe: 0.2%-0.5%; Zn: 0.8%-3%; V: 0.03%-0.05%; Sr: 0.01%-1%; graphene: 0.02%-0.08%. In the high thermal conductivity aluminum alloy of the present invention, alloying elements including Si, Fe, and Zn are optimized; Sr, V, graphene, among others are added. The amount of each component is controlled so that they coordinate to ALLOW high thermal conductivity, good casting performance and excellent semi-solid die-casting property. Graphene is introduced to the high thermal conductivity aluminum alloy of the present invention to exploit the good thermal conductivity of graphene, allowing the formation of a high thermal conductivity aluminium alloy.
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公开(公告)号：US11890672B1
公开(公告)日：2024-02-06
申请号：US18161443
申请日：2023-01-30
Applicant: GM Global Technology Operations LLC
Inventor： Zhe Li , Qigui Wang , Wenying Yang , Daniel J. Wilson , Huaxin Li
CPC classification number: B22D17/02 , B22D21/007 , B22D27/02
Abstract: A method of making a die cast part having high wear resistance is provided. The method comprises providing a mold and an insert pin. The mold comprises an interior surface defining a cavity. The mold comprises a bore formed through the interior surface. The insert pin has a magnetic core having a magnetic field and a barrier disposed about the magnetic core. The insert pin is disposed in the bore and extends into the cavity. The method comprises filling the mold with metallic material such that the metallic material is in contact with the insert pin to define a contact layer. The method comprises modifying iron content within the contact layer with the magnetic field to define an outer layer and an inner layer formed between the outer layer and the insert pin. The inner layer has 3-5 wt % Fe and the outer layer has 0.01-0.5 wt % Fe.
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Patent Agency Ranking
公开(公告)号：US11878345B2
公开(公告)日：2024-01-23
申请号：US17656600
申请日：2022-03-25
Applicant: SEIKO EPSON CORPORATION
Inventor： Shunsuke Uchizono , Setsuya Iwashita , Yasutoshi Hideshima , Fumiya Maeda , Koichi Ozaki , Tadao Fukuta
IPC: B22F1/16 , B22F1/14 , B22F1/102 , B22F3/22 , C22C23/00 , C22C1/10 , B22F1/05 , C22C32/00 , B22D17/00 , C22C1/04 , C22C1/051 , C22C1/05 , B22F8/00 , B22F3/00
CPC classification number: B22F1/16 , B22D17/007 , B22F1/05 , B22F1/102 , B22F1/14 , B22F3/225 , C22C1/0408 , C22C1/051 , C22C1/1084 , C22C23/00 , C22C32/00 , C22C32/0063 , B22F3/003 , B22F8/00 , B22F2301/058 , B22F2302/105 , B22F2998/10 , C22C1/05 , Y10T428/12181 , Y10T428/12556 , Y10T428/12576 , Y10T428/12729 , Y10T428/2438 , Y10T428/24405 , Y10T428/24413 , Y10T428/24421 , Y10T428/29 , Y10T428/2982 , Y10T428/2991 , Y10T428/2993 , Y10T428/2998 , B22F2998/10 , B22F1/107 , B22F1/16 , B22F1/142 , C22C1/1084
Abstract: A thixomolding material includes: a metal body that contains Mg as a main component; and a coating portion that is adhered to a surface of the metal body via a binder and contains SiC particles containing SiC as a main component. A mass fraction of the SiC particles in a total mass of the metal body and the SiC particles is 2.0 mass % or more and 40.0 mass % or less. The binder may contain waxes. A content of the binder may be 0.001 mass % or more and 0.200 mass % or less.
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公开(公告)号：US11878341B2
公开(公告)日：2024-01-23
申请号：US18313325
申请日：2023-05-06
Applicant: Wuhan Research Institute of Materials Protection , Material Laboratory of State Grid Corporation of China (Shandong)
Inventor： Haitao Duan , Yinhua Li , Jiesong Tu , Xiaoming Wang , Lijun Zong , Dan Jia , Shengpeng Zhan , Tian Yang
CPC classification number: B22D17/00 , B22D21/007 , C22C1/1005 , C22C1/1026 , C22C21/00
Abstract: A method for preparing an aluminum carbon composite by using a foam aluminum includes the following steps. Electromagnetic stirring and drying are performed on the foam aluminum and a carbon material to obtain a foam aluminum preform; an aluminum block is melted into aluminum liquid, the aluminum liquid is adjusted to qualified aluminum liquid, the qualified aluminum liquid is cooled to a temperature of 620˜650° C. and keeping the temperature to make the qualified liquid aluminum become a semi-solid state, then the foam aluminum preform is pressed into the qualified liquid aluminum and performing electromagnetic stirring. A mold is heated to a certain temperature and extrusion molding is performed to obtain a carbon reinforced aluminum matrix composite material. The method overcomes a problem that the carbon material and the aluminum matrix have poor wettability and are not easy to be added into the aluminum matrix.
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公开(公告)号：US11858035B2
公开(公告)日：2024-01-02
申请号：US18115674
申请日：2023-02-28
Applicant: HANJOOMETAL CO., LTD
Inventor： Yong Jin Lee , Jin Ha Park , Seong Rak Park , Joong Suk Roh , Hee Jae Bang
CPC classification number: B22D27/02 , B22D17/007
Abstract: Proposed is an electromagnetic vibration stirring device of semi-solid high pressure casting equipment. The electromagnetic vibration stirring device includes: a ring-shaped casing including an inner wall into which a sleeve is inserted and an outer wall spaced apart from the inner wall; and a magnetic field generating unit located between the inner wall and the outer wall of the casing, and including a plurality of electromagnets radially arranged at equal intervals around the sleeve in a circumferential direction of the sleeve, each of the electromagnets including a core and a coil surrounding the core. The magnetic field generating unit generates a magnetic field by applying a current to the electromagnets in a clockwise or counterclockwise direction, and each portion of a semi-solid molten metal is sequentially vibrated by the magnetic field along the circumferential direction of the sleeve, thereby controlling a microstructure of the molten metal.
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公开(公告)号：US11834098B2
公开(公告)日：2023-12-05
申请号：US18074518
申请日：2022-12-05
Applicant: Honda Motor Co., Ltd.
Inventor： Kuruto Hiratsuka
Abstract: A vehicle frame structure capable of achieving light weight, improving structural rigidity, and providing a good casting and forming effect is provided. The vehicle frame structure includes a pair of side portions and a connecting portion. The pair of side portions extends in a vehicle front-rear direction and is mounted on a vehicle body. The connecting portion is arranged as an elongated structure having a pair of long sides and is connected between the pair of side portions. The pair of side portions and the connecting portion are integrally formed by casting through injecting of molten metal from one side of the pair of long sides of the connecting portion. The connecting portion has a film surface connecting the pair of side portions and has a plurality of elongated holes extending radially from the center of the film surface towards the other side of the pair of long sides.
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公开(公告)号：US11752548B2
公开(公告)日：2023-09-12
申请号：US17413762
申请日：2019-12-02
Applicant: ZHUHAI RUNXINGTAI ELECTRICAL CO., LTD
Inventor： Ying Zhang , Jie Tan , Jicheng Wang , Gunan Li , Ziqiang Huang , Huaide Ren
CPC classification number: B22D43/004 , B22D1/00 , B22D17/007 , B22D27/02 , B22F1/148 , C22F1/04 , B22F9/08
Abstract: A die casting method includes stirring an aluminum alloy liquid in a stirrer under an airtight vacuum condition. The stirrer includes an electromagnetic inductor and a stirring rod. The aluminum alloy liquid is simultaneously subjected to an electromagnetic stirring in a direction of a magnetic field generated by the electromagnetic inductor and a mechanical stirring under a rotation action of the stirring rod. The aluminum alloy liquid is stirred for 20-80 minutes until the aluminum alloy liquid becomes semisolid to obtain a semisolid aluminum alloy slurry. The method further includes injecting the semisolid aluminum alloy slurry into a filter die to perform die casting molding at an injection speed of 1.5-2.5 m/s, an injection specific pressure of 30-80 MPa, a pressurization pressure of 60-80 MPa, and a temperature of the filter die of 250-400° C., and maintaining pressure for 7-30 seconds to obtain the filtering cavity.
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