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51. 发明授权

US09574252B2 Methods of reducing old oxides in aluminum castings 有权
标题翻译：减少铝铸件中旧氧化物的方法
公开(公告)号：US09574252B2
公开(公告)日：2017-02-21
申请号：US14174240
申请日：2014-02-06
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , Dale A. Gerard
IPC分类号： C22B21/06 , C22B21/02
CPC分类号： C22B21/02 , C22B21/062
摘要： A method of reducing entrained aluminum oxides in aluminum castings. The method comprises preheating a furnace charge to remove moisture and contaminants. The furnace charge is then coated on all free surfaces with a layer of flux. Subsequently the furnace charge is melted in a furnace to form a melt bath of liquid aluminum suitable for casting. The flux layer removes the naturally occurring oxide film from the furnace charge surface as well as provides a cover flux to protect the melt bath from oxidation.
摘要翻译：一种减少铝铸件中夹带的氧化铝的方法。该方法包括预热炉装料以除去水分和污染物。然后将炉装料用一层焊剂涂覆在所有自由表面上。随后，炉装料在炉中熔化以形成适于铸造的液态铝的熔池。助焊剂层从炉料表面除去天然存在的氧化膜，并提供覆盖助熔剂以保护熔融液免于氧化。

52. 发明申请

US20160034614A1 MATERIALS PROPERTY PREDICTOR FOR CAST ALUMINUM ALLOYS 审中-公开
标题翻译：材料铝合金材料性能预测
公开(公告)号：US20160034614A1
公开(公告)日：2016-02-04
申请号：US14449324
申请日：2014-08-01
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , Bing Li , Yucong Wang
IPC分类号： G06F17/50 , B22D21/00 , B22D46/00
CPC分类号： G06F17/5009 , B22D21/007 , B22D46/00 , G06F17/5018 , G06F2217/16 , G06F2217/41
摘要： A device and article of manufacture to predict material properties of a cast aluminum-based component. In one form, a computer-based system includes numerous computation modules programmably cooperative with one another such that upon receipt of data that corresponds to the cast aluminum-based component, the modules provide performance indicia of the material. The modules include a thermodynamic calculation module, a thermal-physical property module, a mechanical property module and a materials selection or alloy design module. The combination of the modules along with known material and geometric databases—in addition to microstructural and defect databases—promotes the generation of materials properties needed for casting design, casting process simulation, CAE nodal property mapping and durability analysis.
摘要翻译：用于预测铸铝基部件的材料特性的装置和制品。在一种形式中，基于计算机的系统包括可编程地彼此协作的许多计算模块，使得在接收到与铸铝基组件相对应的数据时，模块提供材料的性能标记。模块包括热力学计算模块，热物理属性模块，机械性能模块和材料选择或合金设计模块。模块与已知材料和几何数据库的组合以及显微结构和缺陷数据库 - 促进了铸造设计，铸造过程模拟，CAE节点属性映射和耐久性分析所需的材料属性的生成。

53. 发明授权

US09135691B2 Metallographic method for accurate measurement of pore sizes and distributions in metal castings 有权
标题翻译：用于准确测量金属铸件孔径和分布的金相法
公开(公告)号：US09135691B2
公开(公告)日：2015-09-15
申请号：US13891235
申请日：2013-05-10
申请人： GM Global Technology Operations LLC
发明人： James W. Knight , Qigui Wang
IPC分类号： G06K9/00 , G06T7/00 , G06T7/40
CPC分类号： G06T7/0004 , G06T7/41 , G06T2207/10061 , G06T2207/30116
摘要： A quantitative metallographic method to measure pore sizes and pore distributions in cast aluminum components. An image of a location of interest in a cast component sample is first obtained using an image analyzer. Spacing criteria, such as a measure of the secondary dendrite arm spacing, may be used with the received image to provide evidence of pore clustering. This allows the system to performing calculations to determine if multiple pores can be clustered or grouped together as a single pore in three-dimensional space. From this, the total area of the pores in each of these groups or clusters is calculated and used as a representation of the pore area for that cluster. In general, pore size and pore distribution measurements in cast components achieved by the present invention show accurate predictions of pore size and spacing, and in particular evidence a reduced tendency to under-predict the size and distribution of actual pores.
摘要翻译：用于测量铸铝组分中的孔径和孔分布的定量金相法。首先使用图像分析仪获得投射成分样本中感兴趣的位置的图像。间隔标准，例如二次枝晶臂间距的测量，可以与接收的图像一起使用以提供孔聚集的证据。这允许系统执行计算以确定多孔是否可以聚集或组合在一起作为三维空间中的单个孔。由此，计算每个这些组或簇中的孔的总面积，并将其用作该簇的孔面积的表示。通常，通过本发明实现的铸造组分中的孔径和孔分布测量显示了孔径和间距的准确预测，并且特别地证明了预测实际孔的尺寸和分布的降低的倾向。

54. 发明申请

US20140319956A1 ALUMINUM ALLOY ROTOR FOR AN ELECTROMAGNETIC DEVICE 有权
标题翻译：用于电磁装置的铝合金转子
公开(公告)号：US20140319956A1
公开(公告)日：2014-10-30
申请号：US13871109
申请日：2013-04-26
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Qigui Wang , Richard Jack Osborne , Yucong Wang , Margarita Thompson
IPC分类号： H02K17/16 , B22D19/00
CPC分类号： H02K17/165 , B22D19/0054 , B22D21/007 , C22C21/00
摘要： A rotor includes a shorting ring defining a plurality of cavities therein, and a plurality of conductor bars each integral with the shorting ring and having an end disposed within a respective one of the plurality of cavities. The shorting ring and each of the conductor bars are formed from an aluminum alloy including a lanthanoid present in an amount of from about 0.1 part by weight to about 0.5 parts by weight based on 100 parts by weight of the aluminum alloy. An aluminum alloy, and a method of forming a rotor are also disclosed.
摘要翻译：转子包括在其中限定多个空腔的短路环和多个导体条，每个导体条与短路环整体形成，并且具有设置在多个空腔中的相应一个空腔内的端部。短路环和每个导体棒由包含镧系元素的铝合金形成，所述镧系元素的存在量相对于铝合金的100重量份为约0.1重量份至约0.5重量份。还公开了一种铝合金和一种形成转子的方法。

55. 发明公开

US20240191326A1 ALUMINUM ALLOY FOR HIGH PRESSURE DIE CASTING OF ULTRA-LARGE VEHICLE BODY STRUCTURES 审中-公开
公开(公告)号：US20240191326A1
公开(公告)日：2024-06-13
申请号：US18064980
申请日：2022-12-13
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , Liang Wang , Daniel J. Wilson , Dale A. Gerard , Devin R. Hess , Paul Boone
IPC分类号： C22C21/02 , B22D17/00 , B22D21/00
CPC分类号： C22C21/02 , B22D17/00 , B22D21/007
摘要： 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.

56. 发明授权

US11986879B2 Method to increase local cooling rate and improve material properties in a low-pressure sand-casting head 有权
公开(公告)号：US11986879B2
公开(公告)日：2024-05-21
申请号：US17719737
申请日：2022-04-13
申请人： GM Global Technology Operations LLC
发明人： Liang Wang , Qigui Wang , Dale A. Gerard , Steven L. Burkholder , Ronald C. Daul
IPC分类号： B22C3/00 , B22C9/02 , B22C9/06 , B22C9/10 , B22D15/02
CPC分类号： B22D15/02 , B22C3/00 , B22C9/02 , B22C9/061 , B22C9/101
摘要： A low-pressure sand-casting system includes a sand-casting mold receiving a molten casting material to cast an automobile vehicle cylinder head. A port is created in the automobile vehicle cylinder head. A manifold port metal core assembly includes a metal core. A compressible material coating is applied on the manifold port core metal core.

57. 发明公开

US20240100592A1 SYSTEM AND METHOD OF MAKING A TILT-POURED CRADLE FOR A FUEL CELL 审中-公开
公开(公告)号：US20240100592A1
公开(公告)日：2024-03-28
申请号：US17935769
申请日：2022-09-27
申请人： GM Global Technology Operations LLC
发明人： Liang Wang , Qigui Wang , Tiruttani Munikamal , Shasha Vali Shaik , Suresh Kumar K , Steven L. Burkholder , Thomas W. Gustafson
IPC分类号： B22D30/00 , B22D21/00 , B22D25/02 , B22D41/04
CPC分类号： B22D30/00 , B22D21/007 , B22D25/02 , B22D41/04
摘要： A system and method of manufacturing an aluminum fuel cell cradle are provided. The method comprises providing a negative cast mold having cavities to form the cradle, and comprises providing a feeding mechanism disposed about the mold and in fluid communication with the cavities thereof. The feeding mechanism comprises a plurality of primary risers connected to and in fluid communication with cavities. The method further comprises melting a first metallic material to define a molten metallic material, and comprises moving the mold to a vertical casting orientation about a rotational axis, while feeding molten metallic material through the runner to the cavities. The method further comprises cooling the molten metallic material to define a solidified metallic material. A second solidification time in the risers is greater than a first solidification time in the mold such that shrinkage of the solidified metallic material occurs in the risers away from the mold.

58. 发明公开

US20240058860A1 HYBRID CHILL WITH ENHANCED HEAT TRANSFER 审中-公开
公开(公告)号：US20240058860A1
公开(公告)日：2024-02-22
申请号：US17820683
申请日：2022-08-18
申请人： GM Global Technology Operations LLC
发明人： Lokesh Choudhary , Qigui Wang , Tiruttani Munikamal , Steven L. Burkholder , Thomas W. Gustafson , Dale A. Gerard
IPC分类号： B22D15/04 , C22C37/10
CPC分类号： B22D15/04 , C22C37/10
摘要： A hybrid chill with enhanced heat transfer for casting of a sand cast aluminum engine block of a vehicle is provided. The hybrid chill comprises a base comprising an outer wall having a first side and a second side. Each of the first and second sides extends from a first longitudinal end to an opposite second longitudinal end. The outer wall is closed to define a hollow portion. The base further comprises a heat transfer fluid in a liquid phase disposed in the hollow portion. The heat transfer fluid has a boiling point of between 320° C. and 400° C. at 1 bar for enhanced heat transfer during casting. The chill further comprises a plurality of crankcase members. Each member is disposed on the first side. Each member is spaced apart from a respective adjacent member defining an open recess.

59. 发明授权

US11890672B1 System and method of making a die cast part having high wear resistance 有权
公开(公告)号：US11890672B1
公开(公告)日：2024-02-06
申请号：US18161443
申请日：2023-01-30
申请人： GM Global Technology Operations LLC
发明人： Zhe Li , Qigui Wang , Wenying Yang , Daniel J. Wilson , Huaxin Li
IPC分类号： B22D17/00 , B22D21/00 , B22D27/02 , B22D17/02
CPC分类号： B22D17/02 , B22D21/007 , B22D27/02
摘要： 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.

60. 发明授权

US11834732B2 Method of eliminating microstructure inheritance of hypereutectic aluminum-silicon alloys 有权
公开(公告)号：US11834732B2
公开(公告)日：2023-12-05
申请号：US17529950
申请日：2021-11-18
申请人： GM Global Technology Operations LLC , Shanghai Jiao Tong University
发明人： Qigui Wang , Wenying Yang , Bing Ye
IPC分类号： C22C1/02
CPC分类号： C22C1/026
摘要： A method of eliminating microstructure inheritance of hypereutectic aluminum-silicon alloys. The method includes heating a first amount of the Al—Si alloy to a predetermined temperature above a liquidus temperature of the Al—Si alloy to form a first amount melt; holding the first amount melt at the predetermined temperature for a predetermined amount of time; stirring the first amount melt during the predetermined amount of time; heating a second amount of the Al—Si alloy above the liquidus temperature of the Al—Si alloy to form a second amount melt; and mixing the first amount melt and the second amount melt to form a processed Al—Si casting alloy. The predetermined temperature is between about 750° C. to 850° C. The predetermined amount of time is between 0.1 hour to 0.5 hour. The processed Al—Si casting alloy contains about 30 wt % to about 40 wt % of the first amount of the Al—Si alloy.

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