SURFACE TREATMENT FOR IMPROVED BONDING IN BI-METALLIC CASTING
    51.
    发明申请
    SURFACE TREATMENT FOR IMPROVED BONDING IN BI-METALLIC CASTING 有权
    用于改进双金属铸造粘合的表面处理

    公开(公告)号:US20140290894A1

    公开(公告)日:2014-10-02

    申请号:US14099474

    申请日:2013-12-06

    CPC classification number: B22D19/0081 B22D19/16

    Abstract: Methods of forming bi-metallic castings are provided. In one method, a metal preform of a desired base shape is provided defining a substrate surface. A natural oxide layer is removed from the substrate surface, yielding a cleaned metal preform. The method includes forming a thin metallic film on at least a portion of the substrate surface of the cleaned metal preform, and metallurgically bonding the portion of the metal preform having the metallic film with an overcast metal to form a bi-metallic casting. The metallic film promotes a metallurgical bond between the metal preform and the overcast metal. In one aspect, the metal preform may comprise aluminum (Al) and the metallic film may comprise zinc (Zn).

    Abstract translation: 提供了形成双金属铸件的方法。 在一种方法中,提供限定衬底表面的所需基底形状的金属预制件。 从衬底表面去除自然氧化物层,产生清洁的金属预制件。 该方法包括在清洁的金属预制件的基材表面的至少一部分上形成薄金属膜,并且将具有金属膜的金属预制件的部分与阴极金属冶金结合以形成双金属铸件。 金属膜促进金属预型件和阴极金属之间的冶金结合。 一方面,金属预型件可以包括铝(Al),金属膜可以包括锌(Zn)。

    Pre-lithiation of battery electrode material

    公开(公告)号:US12142751B2

    公开(公告)日:2024-11-12

    申请号:US16912150

    申请日:2020-06-25

    Abstract: A method for making a pre-lithiated electrode for a lithium ion battery cell, a method for making a battery with a pre-lithiated electrode, and an electric vehicle with a pre-lithiated electrode are provided. An exemplary method for making a pre-lithiated electrode for a lithium ion battery cell includes electrochemically connecting a magnesium-lithium alloy to the electrode. Further, the method includes pre-lithiating the electrode by transferring lithium ions from the magnesium-lithium alloy to the electrode. Also, the method includes electrochemically disconnecting the magnesium-lithium alloy from the electrode.

    INDUCTION ALLOYED ROTOR LAMINATIONS AND METHOD

    公开(公告)号:US20230291288A1

    公开(公告)日:2023-09-14

    申请号:US17648568

    申请日:2022-01-21

    CPC classification number: H02K15/03 H02K1/276 H02K15/12

    Abstract: A rotor for an electric machine includes strengthened structural elements effected through surface alloying and heating via an induction heating fixture. A rotor includes laminations formed to have internal cavities and structural members adjacent the cavities. A number of the laminations are stacked to form a lamination stack. An alloying material is applied to the lamination stack at the structural members. The lamination stack is placed in a fixture so that an inductor extends along the structural members and cooling elements extend through the cavities. A current is applied to the inductor to heat the structural members, alloying the alloying material into the structural members.

    High strength ductile 6000 series aluminum alloy extrusions

    公开(公告)号:US11708629B2

    公开(公告)日:2023-07-25

    申请号:US17735228

    申请日:2022-05-03

    CPC classification number: C22F1/05 C22C21/08

    Abstract: An alloy composition is provided. The alloy composition includes silicon (Si) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, magnesium (Mg) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, chromium (Cr) at a concentration of greater than or equal to about 0.15 wt. % to less than or equal to about 0.3 wt. %, and a balance of the alloy composition being aluminum (Al). The alloy composition has an intermetallic phase content of less than or equal to about 3 wt. %. Methods of preparing the alloy composition and of processing the alloy composition are also provided.

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