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    HIGH THERMAL CONDUCTIVITY ALUMINIUM ALLOY AND PREPARATION METHOD THEREOF
    1.
    发明申请
    HIGH THERMAL CONDUCTIVITY ALUMINIUM ALLOY AND PREPARATION METHOD THEREOF 有权

    公开(公告)号：US20210062304A1

    公开(公告)日：2021-03-04

    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

    IPC: C22C21/02 ,  B22D17/00 ,  C22C1/00 ,  C22C1/06 ,  C22C1/10

    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.

    Die-casting process method for die-cast molding of metal in semi-solid state
    4.
    发明授权
    Die-casting process method for die-cast molding of metal in semi-solid state 有权

    公开(公告)号：US10081054B2

    公开(公告)日：2018-09-25

    申请号：US15512825

    申请日：2015-09-17

    Applicant: ZHUHAI RUNXINGTAI ELECTRICAL CO., LTD

    Inventor： Huaide Ren ,  Victor Wang ,  Gunan Li ,  Ying Zhang

    IPC: B22D17/00 ,  B22D17/08 ,  B22D18/02 ,  C22C21/04

    CPC classification number: B22D17/007 ,  B22D17/08 ,  B22D18/02 ,  B22D21/007 ,  B22D21/04 ,  C22C21/04

    Abstract: A die-casting process method for die-cast molding of a metal in a semi-solid state, wherein a semi-solid state die-casting machine is used as a processing device and a pulper is used as a device for preparing and delivering a slurry in a semi-solid state; the method comprises the steps: spraying a mold release agent and mold clamping; melting the raw material and keeping the temperature; adding a metal modificator into the molten raw material to prepare the slurry in a semi-solid state; transferring the slurry in a semi-solid state into a mold by the pulper; die-casting, opening the mold and exporting a die-cast; removing the sprue to obtain the final die-cast. In the process method, a metal modificator is added to the liquid metal raw material during the preparation of the slurry in a semi-solid state so as to generate more crystal nuclei, so that die-cast products have better mechanical properties; by way of die-casting the slurry in a semi-solid state, during mold stripping the die-cast is low in temperature and small in deformation quantity, and the best shapes and surface smoothness of the product can be guaranteed; and the die-cast is compact interiorly with producing air holes, and the best interior structure and mechanical properties of the die-cast product are guaranteed.

    Method and device for preparing semi-solid slurry
    7.
    发明授权
    Method and device for preparing semi-solid slurry 有权

    公开(公告)号：US11059094B2

    公开(公告)日：2021-07-13

    申请号：US15874861

    申请日：2018-01-18

    Applicant: ZHUHAI RUNXINGTAI ELECTRICAL CO., LTD.

    Inventor： Huaide Ren ,  Ying Zhang ,  Jicheng Wang ,  Gunan Li

    IPC: B22D1/00 ,  B01F15/06 ,  B22D21/04 ,  B01F7/18 ,  B01F7/00 ,  B01F15/00 ,  B22D17/00

    Abstract: A method for preparing semisolid slurry. The method is achieved using a device for preparing semisolid slurry. The device includes a slurry vessel and a mechanical stirring rod. The mechanical stirring rod includes a first end and a second end extending into the slurry vessel. The method includes: S1. putting a molten alloy having a first preset temperature into the slurry vessel; S2. cooling the molten alloy to a second preset temperature, positioning the second end of the mechanical stirring rod to be 5-25 mm higher than the bottom wall of the slurry vessel, rotating the mechanical stirring rod and injecting a cooling medium into the mechanical stirring rod; and S3: allowing the temperature of the molten alloy to be 10-90 degrees centigrade lower than the liquidus temperature of the molten alloy, stopping stirring and cooling, to yield a semisolid slurry.

    Method and apparatus for continuous semisolid die casting
    8.
    发明授权
    Method and apparatus for continuous semisolid die casting 有权

    公开(公告)号：US10682693B2

    公开(公告)日：2020-06-16

    申请号：US15874858

    申请日：2018-01-18

    Applicant: ZHUHAI RUNXINGTAI ELECTRICAL CO., LTD.

    Inventor： Huaide Ren ,  Ying Zhang ,  Jicheng Wang ,  Gunan Li

    IPC: B22D17/00 ,  B22D17/32 ,  B22D21/04 ,  C22B9/10 ,  B22D1/00

    Abstract: A method for continuous semisolid die casting. The method is achieved using an apparatus for continuous semisolid die casting. The apparatus includes: a first preparation device for producing a nucleating agent, a second preparation device for producing semisolid slurry, a semisolid die casting machine, and a central controller. The second preparation device includes a slurry generator. The method includes: controlling, by the central controller, the first preparation device to produce a solid nucleating agent, and delivering the solid nucleating agent to the slurry generator of the second preparation device; controlling, by the central controller, the second preparation device to produce semisolid slurry, and delivering the semisolid slurry to the semisolid die casting machine; and controlling, by the central controller, the semisolid die casting machine to perform semisolid die casting.

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