公开(公告)号：US09677158B2

公开(公告)日：2017-06-13

申请号：US13833397

申请日：2013-03-15

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Wenying Yang ,  Jason R. Traub

IPC: C22C21/04 ,  B22D17/00 ,  C22F1/043 ,  B22D21/00

CPC classification number: C22C21/04 ,  B22D17/00 ,  B22D21/007 ,  C22F1/043

Abstract: Copper-free aluminum alloys suitable for high pressure die casting and capable of age-hardening under elevated temperatures are provided. The allow includes about 9.5-13 wt % silicon, about 0.2 to 0.6 wt % Magnesium, about 0.1 to 2 wt % iron, about 0.1 to 2 wt % manganese, about 0.1 to 1 wt % nickel, about 0.5 to 3 wt % zinc, and 0 to 0.1 wt % strontium, with a balance of aluminum. Methods for making high pressure die castings and castings manufactured from the alloy are also provided.

公开(公告)号：US20170234216A1

公开(公告)日：2017-08-17

申请号：US15433285

申请日：2017-02-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Russell P. Durrett ,  Paul M. Najt ,  Peter P. Andruskiewicz, IV ,  Jason R. Traub ,  Michael J. Walker

IPC: F02B77/11 ,  C23C4/129 ,  F02F3/10 ,  C25D3/12 ,  C25D15/00 ,  B23K1/00 ,  C23C18/16 ,  C25D7/00

Abstract: A composite thermal barrier coating (TBC) may be applied to a surface of components within an internal combustion engine. The composite TBC provides low thermal conductivity and low heat capacity insulation that is sealed against combustion gasses. The composite TBC includes three layers, bonded to one another, i.e., a first (bonding) layer, a second (insulating) layer, and a third (sealing) layer. The insulating layer is disposed between the bonding layer and the sealing layer. The bonding layer is bonded to the component and to the insulating layer. The insulating layer includes hollow microspheres that are sintered together to form insulation that provides a low effective thermal conductivity and low effective heat capacity. The sealing layer is a thin film that is configured to resist the high temperatures, present within the engine. The sealing layer is impermeable to gasses and presents a smooth surface.

公开(公告)号：US09597729B2

公开(公告)日：2017-03-21

申请号：US14613991

申请日：2015-02-04

Applicant: GM Global Technology Operations LLC

Inventor： David D. Goettsch ,  Brad A. Ohlrich ,  Jason R. Traub ,  Michael J. Walker

IPC: B22D17/28 ,  B22D17/30 ,  B22D43/00 ,  B22D35/04

CPC classification number: B22D35/04 ,  B22D17/28 ,  B22D17/30 ,  B22D43/004

Abstract: A method of transferring molten metal to a die casting mold is disclosed. The method includes providing a ladle with a dip well and a dispensing nozzle having a fluid metal filter formed therein as well as providing a receptacle fluidly between the ladle and the mold. Further the method includes delivering the molten metal from the ladle to the receptacle by positioning an exit face of the dispensing nozzle over the receptacle and rotating the ladle such that the exit face of the dispensing nozzle is repositioned proximal the bottom of the receptacle and conveying the molten metal that has been delivered to the receptacle into a mold cavity that is placed in fluid communication therewith.

公开(公告)号：US20160279700A1

公开(公告)日：2016-09-29

申请号：US14670486

申请日：2015-03-27

Applicant: GM Global Technology Operations LLC

Inventor： David D. Goettsch ,  Jason R. Traub ,  Michael J. Walker ,  Brad A. Ohlrich

IPC: B22D17/20 ,  B22D45/00 ,  B22D27/00

CPC classification number: B22C9/086 ,  B22D17/30 ,  C22B9/023 ,  F27D3/14 ,  Y02P10/234

Abstract: A device and method for transferring filtered molten metal to a die casting mold. The device and method include a casting filtration system that includes a funnel and a continuously replaceable filter placed fluidly between a molten metal source and a casting mold. Both the funnel and filter are automatically moved into cooperation with a molten metal receptacle such as a shot sleeve prior to each casting operation, and then automatically moved out of the way so that pressurization of the filtered molten metal may take place in the receptacle. In addition, the filter may be formed on a continuous strand such that indexed movement of the strand will advance the used portion of the filter out of the way to make room for a new unused filter portion that will be ready for a subsequent repeated casting operation.

Abstract translation: 一种用于将过滤的熔融金属转移到压铸模具的装置和方法。 该装置和方法包括铸造过滤系统，其包括漏斗和可流动地置于熔融金属源和铸模之间的可连续更换的过滤器。 在每个铸造操作之前，漏斗和过滤器都自动地与熔融金属容器（例如喷射套筒）配合，然后自动移出，使得过滤的熔融金属的加压可能发生在容器中。 此外，过滤器可以形成在连续的股线上，使得股线的分度运动将使过滤器的使用部分前进，以便为将用于随后的重复铸造操作准备好的新的未使用过滤器部分腾出空间 。