Iron-aluminum-based intermetallic compound filter element and preparation method thereof

    公开(公告)号:US12226855B2

    公开(公告)日:2025-02-18

    申请号:US17791495

    申请日:2020-06-04

    Abstract: The present invention discloses a Fe—Al intermetallic compound filter element and a preparation method thereof, which relates to the field of powder metallurgy and filtration technology. In view of the drawback in the prior art that using a fiber felt as a filtration layer reduces stability and reliability of a filter, the present invention provides an Fe—Al intermetallic compound filter element, which comprises: at least two filter-element parts, and a rebar connecting the at least two filter-element parts transversely by means of welding, wherein, the filter-element parts each comprises at least two segments of Fe—Al intermetallic compound filter-element powder tube and a connector connecting the at least two segments of Fe—Al intermetallic compound filter-element powder tube end-to-end by means of welding; and wherein, the at least two segments of Fe—Al intermetallic compound filter-element powder tube each comprises a substrate framework and a surface filtration membrane.

    JOINING SYSTEM, AND METHOD FOR OPERATING SAME

    公开(公告)号:US20220362889A1

    公开(公告)日:2022-11-17

    申请号:US17623883

    申请日:2020-06-18

    Abstract: A joining system (100) of the present invention is for joining a joining target (W) including first, second, and third members (W1), (W2), (W3), and includes a welder (101), a friction stir welding machine (102), and a controller (110) that: (A) causes the welder (101) to weld the second and third members (W2), (W3); (B), after (A), causes the joining target (W) to be placed at the friction stir welding machine (102) so that the first member (W1) is opposed to a distal end of a tool (10); and (C), after (B), controls a linear motion driver (7) and a rotation driver (8) so as to, while pressing the distal end of the tool (10) to the joining target (W), rotate the tool (10) around an axis, so that the softened second and third members (W2), (W3) intrude into the softened first member (W1), thus joining the joining target (W).

    PRECIPITATION-STRENGTHENED CAST PRODUCT WELDING REPAIR METHOD

    公开(公告)号:US20220143759A1

    公开(公告)日:2022-05-12

    申请号:US17433498

    申请日:2019-02-25

    Inventor: Hidetaka Nishida

    Abstract: A precipitation-strengthened cast product welding repair method is a method of repairing a damaged portion of a precipitation-strengthened cast product. The method includes: forming a first weld layer on a surface of the damaged portion by micro tungsten inert gas (TIG) welding using a solid-solution-strengthened welding material having higher toughness than the cast product; and forming a second weld layer on the first weld layer by building up the second weld layer by laser welding using a dual multi-phase nanostructure intermetallic compound as a welding material and being higher in heat supply rate than the micro TIG welding.

    WELDING SYSTEMS AND METHODS WITH KNURLED WELD INTERFACES FOR METALLIC WORKPIECES

    公开(公告)号:US20210276134A1

    公开(公告)日:2021-09-09

    申请号:US16811627

    申请日:2020-03-06

    Abstract: Presented are metalworking systems for joining metallic workpieces, methods for forming and welding such workpieces, and lithium-ion battery pouch cells with anodized aluminum tabs joined via knurling and laser welding. A method for laser welding abutting sections of a workpiece or stackup of workpieces includes receiving, via a workpiece support frame, one or more metallic workpieces each with a surface having applied thereto a treatment layer. This treatment layer releases a gas during welding. A metalworking device forms a knurl pattern into the workpiece surface with the treatment layer. The knurl pattern includes a network of channels, such as one or more series of mutually parallel, rectilinear vent channels, designed to exhaust therethrough the gas released from a welded section of the treatment layer. A laser welding device thereafter welds a joint region of the surface(s) of the one or more metallic workpiece with the knurl pattern.

    SYSTEMS AND METHODS FOR SHAPING AND CUTTING MATERIALS

    公开(公告)号:US20210252730A1

    公开(公告)日:2021-08-19

    申请号:US17313712

    申请日:2021-05-06

    Applicant: Thierry Rozot

    Inventor: Thierry Rozot

    Abstract: Systems and methods suitable for shaping and cutting materials. Such a system includes first and second carriage units that are independently operable to travel in a travel direction parallel to a longitudinal axis of a table supporting the material. The first and second carriage units have first and second arms, respectively. A cutting device coupled to the first arm forms a slit in the material, and a deburring device coupled to the second arm forcibly removes burrs from the slit. The deburring device is behind the cutting device relative to the travel direction and forcibly removes burrs in the travel direction toward a breakthrough point of the slit. The second carriage unit oscillates parallel to the travel direction so that the deburring device moves toward and away from the breakthrough point of the slit to remove burrs at the breakthrough point.

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