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    METHOD FOR PRODUCING RIVET JOINT, RIVET JOINT, AND AUTOMOBILE PART
    2.
    发明公开
    METHOD FOR PRODUCING RIVET JOINT, RIVET JOINT, AND AUTOMOBILE PART 审中-实审

    公开(公告)号：EP4410449A1

    公开(公告)日：2024-08-07

    申请号：EP22872596.6

    申请日：2022-08-16

    申请人： NIPPON STEEL CORPORATION

    发明人： FUJIMOTO Hiroki ,  MANABE Toshiyuki ,  ONO Atsushi ,  AKIOKA Koji ,  IMAMURA Takashi

    IPC分类号： B21J15/00 ,  F16B5/04 ,  F16B5/08 ,  B23K11/14

    CPC分类号： F16B5/04 ,  F16B5/08 ,  B21J15/00 ,  B23K11/14

    摘要： A method for manufacturing a riveted joint includes: causing a shaft portion of a steel rivet having the shaft portion and a head portion to pass through through-holes of a plurality of overlaid sheet members; sandwiching the rivet between a pair of electrodes in axial direction of the rivet; applying a force to the rivet and energizing the rivet with the electrodes to form a deformed portion at a distal end of the shaft portion; and cooling the rivet. In the rivet after cooling, a Vickers hardness HB of the head portion satisfies 130 ≤ HB ≤ 330, and a Vickers hardness HA of the deformed portion, a thickness TA of the deformed portion, a Vickers hardness HJ of a portion of the shaft portion at center in axial direction and at center in radial direction, diameter DJ of the shaft portion, a Vickers hardness HB of the head portion, and a thickness TB of the head portion satisfy HJ × DJ ≥ 4.7 × HB × TB and HA × TA ≥ 1.3 × HB × TB.

    JOINING METHOD AND JOINED BODY
    4.
    发明公开
    JOINING METHOD AND JOINED BODY 审中-公开

    公开(公告)号：EP4005721A1

    公开(公告)日：2022-06-01

    申请号：EP20866435.9

    申请日：2020-08-20

    申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)

    发明人： HASHIMURA, Toru ,  IHARA, Ryohei ,  YAMAKAWA, Taiki

    IPC分类号： B23K9/007 ,  B23K9/23 ,  B23K11/11 ,  B23K26/21 ,  F16B5/04 ,  F16B5/08

    摘要： A joining method for overlapping and joining a plate-shaped portion of a first metal member 2 and a plate-shaped portion of a second metal member 3, where the first metal member 2 and the second metal member 3 are made of dissimilar materials, includes a first step of forming an insertion hole in each of the plate-shaped portion of the first metal member 2 and the plate-shaped portion of the second metal member 3, where the insertion holes communicate with each other when the plate-shaped portions of the first metal member 2 and the second metal member 3 are overlapped with each other, a second step of disposing a first joining member 4 made of a metal material on a side of the plate-shaped portion of the first metal member 2 opposite to the second metal member 3, a third step of inserting a second joining member 5 made of the same metal material as that of the first joining member 4 into the first metal member 2 from a side of the second metal member 3 through the insertion holes while the plate-shaped portions of the first metal member 2 and the second metal member 3 are overlapped with each other, and a fourth step of welding the first joining member 4 and the second joining member 5 and joining the first metal member 2 and the second metal member 3 through the first joining member 4 and the second joining member 5.

    SOUND AND VIBRATION DAMPING SYSTEM FOR TRANSFORMER TANKS AND REACTOR TANKS
    5.
    发明公开
    SOUND AND VIBRATION DAMPING SYSTEM FOR TRANSFORMER TANKS AND REACTOR TANKS 审中-公开

    公开(公告)号：EP3979275A1

    公开(公告)日：2022-04-06

    申请号：EP20199995.0

    申请日：2020-10-05

    申请人： Siemens Energy Global GmbH & Co. KG

    发明人： Kelemen, Franjo ,  Pregartner, Helmut

    IPC分类号： H01F27/33 ,  H01F27/02 ,  F16F9/30 ,  F16F15/08 ,  G10K11/168 ,  F16B5/08 ,  F16B37/06 ,  B32B3/06 ,  B32B15/06

    摘要： The invention relates to a tank (1), particularly a transformer tank or a reactor tank, said tank (1) comprising
    - an internal space (2),
    - at least one tank wall (3) which surrounds the internal space (2) preferably completely, wherein the at least one tank wall (3) comprises an inner side () facing towards the internal space (2), and
    - a damping system.
    According to the invention the damping system comprises
    - at least one viscoelastic layer (5) and
    - at least one metal sheet (6), wherein
    the damping system is arranged on the inner side (4) of the at least one tank wall (3), so that the at least one viscoelastic layer (5) is located behind the at least one tank wall (3) and the at least one metal sheet (6) is located behind the at least one viscoelastic layer (5) seen in the direction from the at least one tank wall (3) to the internal space (2) .

    RESISTANCE WELDING FASTENER
    6.
    发明公开
    RESISTANCE WELDING FASTENER 审中-公开

    公开(公告)号：EP3936272A1

    公开(公告)日：2022-01-12

    申请号：EP21191955.0

    申请日：2015-12-14

    申请人： Howmet Aerospace Inc.

    发明人： SPINELLA, Donald J. ,  BERGSTROM, Daniel

    IPC分类号： B23K11/14 ,  B23K11/00 ,  B23K11/18 ,  B23K11/20 ,  B23K11/30 ,  B23K35/02 ,  F16B5/08 ,  B23K101/38 ,  B23K103/10 ,  B23K103/12 ,  B23K103/08 ,  B23K103/18 ,  B21J15/08

    摘要： An apparatus and method for fastening layers of non-ferrous alloys, like aluminum, magnesium and copper utilizes a steel fastener and a spot welding machine. The fastener and metals are stacked and the heat from the welder's electric current softens the lower melting point aluminum allowing the fastener to penetrate the aluminum. A weld zone between the fastener and the various layers creates an internal weld. The fastener has a rough shaft that is coated by the molten weld zone and is hard to withdraw on solidification. Layers of non-conductive materials like plastics and ceramics may also be affixed to a conductive layer using a fastener made from a compatible material that extends through a pilot hole and welds to or penetrates a conductive layer. The fastener may have projections that initially reduce contact area with the stack.