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    METHODS TO INCREASE SOLID SOLUTION ZIRCONIUM IN ALUMINUM ALLOYS
    11.
    发明申请
    METHODS TO INCREASE SOLID SOLUTION ZIRCONIUM IN ALUMINUM ALLOYS 审中-公开

    公开(公告)号：US20180291479A1

    公开(公告)日：2018-10-11

    申请号：US15481666

    申请日：2017-04-07

    Applicant: GM Global Technology Operations LLC

    Inventor： Michael J. Walker ,  Qigui Wang

    IPC: C22C1/02 ,  C22C21/00

    CPC classification number: C22C1/026 ,  C22C1/03 ,  C22C9/00 ,  C22C16/00 ,  C22C21/00 ,  C22C45/00 ,  C22C45/001 ,  C22C45/08 ,  C22F1/04

    Abstract: A method of making an aluminum alloy containing zirconium includes heating a first composition comprising aluminum to a first temperature of greater than or equal to about 580° C. to less than or equal to about 800° C. The method further includes adding a second composition including a copper-zirconium compound to the first composition to form a third composition. The copper-zirconium compound of the second composition has a molar composition of greater than or equal to about 41% zirconium to less than or equal to about 67% zirconium and a balance of copper. The method also includes solidifying the third composition at a cooling rate of greater than or equal to about 0.1° C./second to less than or equal to about 100° C./second to a second temperature less than or equal to a solidus temperature and decomposing the copper-zirconium compound at a third temperature of less than or equal to about 715° C.

    THERMAL SPRAY DEPOSITION OF HOLLOW MICROSPHERES
    12.
    发明申请
    THERMAL SPRAY DEPOSITION OF HOLLOW MICROSPHERES 审中-公开

    公开(公告)号：US20180179623A1

    公开(公告)日：2018-06-28

    申请号：US15388284

    申请日：2016-12-22

    Applicant: GM Global Technology Operations LLC

    Inventor： Michael J. Walker

    IPC: C23C4/08 ,  C23C4/129 ,  C23C4/18

    CPC classification number: C23C4/08 ,  C23C4/06 ,  C23C4/129 ,  C23C4/18 ,  C23C28/021 ,  C23C28/023

    Abstract: Methods of forming an insulating coating from thermal spraying are provides. In one variation, the method includes thermally spraying a jetted stream having a maximum temperature of greater than or equal to about 900° C. towards a substrate to form the insulating coating on the substrate. The thermal spraying may be a high-velocity oxygen flame (HVOF) process. The jetted stream comprises a plurality of hollow microspheres, which may comprise a metal, such as nickel or iron. The insulating coating as formed has a thermal conductivity (K) of less than or equal to about 200 mW/m·K at standard temperature and pressure conditions and may have a thermal capacity (cv) of greater than or equal to about 100 kJ/m3·K.

    SECONDARY CAST ALUMINUM ALLOY FOR STRUCTURAL APPLICATIONS
    13.
    发明申请
    SECONDARY CAST ALUMINUM ALLOY FOR STRUCTURAL APPLICATIONS 审中-公开
    用于结构应用的二次铸铝合金

    公开(公告)号：US20160250683A1

    公开(公告)日：2016-09-01

    申请号：US14632308

    申请日：2015-02-26

    Applicant: GM Global Technology Operations LLC

    Inventor： Qigui Wang ,  Jason R. Traub ,  Michael J. Walker ,  Anil K. Sachdev

    IPC: B22D21/00 ,  B22D25/02 ,  G01N33/20 ,  C22C21/02

    CPC classification number: B22D21/007 ,  B22D25/02 ,  C22C21/02 ,  C22C21/12 ,  C22C21/16 ,  C22C21/18 ,  C22F1/043 ,  C22F1/057 ,  G01N33/20

    Abstract: An aluminum alloy that can be cast into structural components wherein at least some of the raw materials used to produce the alloy are sourced from secondary production sources. In addition to aluminum as the primary constituent, such an alloy includes 5 to 14% silicon, 0 to 1.5% copper, 0.2 to 0.55% magnesium, 0.2 to 1.2% iron, 0.1 to 0.6% manganese, 0 to 0.5% nickel, 0 to 0.8% zinc, 0 to 0.2% of other trace elements selected from the group consisting essentially of titanium, zirconium, vanadium, molybdenum and cobalt. In a preferred form, most of the aluminum is from a secondary production source. Methods of analyzing a secondary production aluminum alloy to determine its constituent makeup is also disclosed, as is a method of adjusting the constituent makeup of such an alloy in situations where the alloy is out of tolerance when measured against its primary source counterpart.

    Abstract translation: 可以铸造成结构部件的铝合金，其中用于生产合金的至少一些原料来自二次生产源。 除了铝作为主要成分之外，这种合金包括5至14％的硅，0至1.5％的铜，0.2至0.55％的镁，0.2至1.2％的铁，0.1至0.6％的锰，0至0.5％的镍，0 至0.8％的锌，0至0.2％的其它选自基本上由钛，锆，钒，钼和钴组成的微量元素。 在优选的形式中，大多数铝来自二次生产源。 还公开了分析二次生产铝合金以确定其构成组成的方法，以及在相对于其主要源对应物测量合金超出耐受性的情况下调整这种合金的组成构成的方法。

    METHOD OF MANUFACTURING METAL CASTINGS
    14.
    发明申请
    METHOD OF MANUFACTURING METAL CASTINGS 审中-公开

    公开(公告)号：US20200316676A1

    公开(公告)日：2020-10-08

    申请号：US16376667

    申请日：2019-04-05

    Applicant: GM Global Technology Operations LLC

    Inventor： Qigui Wang ,  Christopher D. Cogan ,  Michael J. Walker ,  Garrold DeGrace ,  Thomas Gustafson ,  Dale Gerard

    IPC: B22C9/02 ,  B22D29/00

    Abstract: A method of manufacturing an aluminum alloy cylinder head includes providing a precision sand core and mold assembly, a liquid aluminum alloy delivery system, and a mold manipulator system. The precision sand core and mold assembly is disposed in the mold manipulator system and the liquid aluminum alloy delivery system includes an in-furnace ultrasonic actuator and a launder tube having at least an ultrasonic actuator. The liquid aluminum alloy delivery system is sealed to the precision sand core and mold assembly and provides liquid aluminum alloy into a gating system of the precision sand core and mold assembly. The precision sand core and mold assembly is rotated approximately 180°. The precision sand core and mold assembly is vibrated.

    HIGH TEMPERATURE CAST ALUMINUM ALLOY FOR CYLINDER HEADS
    16.
    发明申请
    HIGH TEMPERATURE CAST ALUMINUM ALLOY FOR CYLINDER HEADS 审中-公开

    公开(公告)号：US20190169716A1

    公开(公告)日：2019-06-06

    申请号：US15828827

    申请日：2017-12-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Qigui Wang ,  Michael J. Walker ,  Andrew C. Bobel

    IPC: C22C21/04 ,  C22F1/043 ,  B22D11/00 ,  B22D15/00 ,  F02F1/24

    Abstract: Aluminum alloys having improved high temperature mechanical properties are provided. An aluminum alloy suitable for sand casting, permanent mold casting, or semi-permanent mold casting includes about 3 to about 12 weight percent silicon; about 0.5 to about 2.0 weight percent copper; about 0.2 to about 0.6 weight percent magnesium; about 0 to about 0.5 weight percent chromium; about 0 to about 0.3 weight percent each of zirconium, vanadium, cobalt, and barium; about 0 to about 0.3 weight percent each of strontium, sodium, and titanium; about 0 to about 0.5 weight percent each of iron manganese, and zinc; and about 0.0.1 weight percent of other trace elements. Also disclosed is a semi permanent mold cast article, such as an engine cylinder head.

    STRETCHABLE ADJUSTABLE-STIFFNESS ASSEMBLIES
    17.
    发明申请
    STRETCHABLE ADJUSTABLE-STIFFNESS ASSEMBLIES 审中-公开

    公开(公告)号：US20190106916A1

    公开(公告)日：2019-04-11

    申请号：US15728034

    申请日：2017-10-09

    Applicant: GM Global Technology Operations LLC

    Inventor： Ian J. Sutherland ,  Michael J. Walker ,  Wonhee M. Kim ,  Paul W. Alexander ,  Richard J. Skurkis ,  Amberlee S. Haselhuhn ,  Xiujie Gao

    IPC: E05C17/00 ,  F15B15/10

    Abstract: A stretchable adjustable-stiffness assembly includes a casing and first and second friction layers. The casing can be fluidly sealed and includes an interior compartment containing a fluid. The fluid can shift between a first interior pressure and a second interior pressure less than the first interior pressure and an exterior pressure. The first and second friction layers are disposed within the interior compartment. The assembly can shift between relaxed and fixed configurations. In the relaxed configuration, the fluid has the first interior pressure, the casing is stretchable between a first dimension and a second dimension greater than the first dimension, and the assembly has a first stiffness. In the fixed configuration, the first fluid has the second interior pressure, the casing length is fixed, the first and second friction layers are engaged, and the assembly has a second stiffness greater than the first stiffness.

    SECONDARY CAST ALUMINUM ALLOY FOR STRUCTURAL APPLICATIONS
    19.
    发明申请
    SECONDARY CAST ALUMINUM ALLOY FOR STRUCTURAL APPLICATIONS 审中-公开

    公开(公告)号：US20190039125A1

    公开(公告)日：2019-02-07

    申请号：US16154129

    申请日：2018-10-08

    Applicant: GM Global Technology Operations LLC

    Inventor： Qigui Wang ,  Jason R. Traub ,  Michael J. Walker ,  Anil K. Sachdev

    IPC: B22D21/00 ,  C22C21/12 ,  C22F1/057 ,  C22F1/043 ,  C22C21/18 ,  G01N33/20 ,  B22D25/02 ,  C22C21/02 ,  C22C21/16

    Abstract: An aluminum alloy that can be cast into structural components wherein at least some of the raw materials used to produce the alloy are sourced from secondary production sources. In addition to aluminum as the primary constituent, such an alloy includes 5 to 14% silicon, 0 to 1.5% copper, 0.2 to 0.55% magnesium, 0.2 to 1.2% iron, 0.1 to 0.6% manganese, 0 to 0.5% nickel, 0 to 0.8% zinc, 0 to 0.2% of other trace elements selected from the group consisting essentially of titanium, zirconium, vanadium, molybdenum and cobalt. In a preferred form, most of the aluminum is from a secondary production source. Methods of analyzing a secondary production aluminum alloy to determine its constituent makeup is also disclosed, as is a method of adjusting the constituent makeup of such an alloy in situations where the alloy is out of tolerance when measured against its primary source counterpart.

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