METHOD FOR MANUFACTURING SPARK PLUG FOR INTERNAL COMBUSTION ENGINE
    1.
    发明公开
    METHOD FOR MANUFACTURING SPARK PLUG FOR INTERNAL COMBUSTION ENGINE 审中-公开
    VERFAHREN ZUR HERSTELLUNG EINERZÜNDKERZEFÜREINEN VERBRENNUNGSMOTOR

    公开(公告)号:EP3001519A1

    公开(公告)日:2016-03-30

    申请号:EP14801406.1

    申请日:2014-05-21

    IPC分类号: H01T13/20

    CPC分类号: H01T13/39 H01T21/02

    摘要: A method of manufacturing a spark plug 1 in which at least one of a center electrode 2 and a ground electrode 3 includes a discharge chip 5. In a chip making step, the discharge chip 5 is made by joining a discharge part 51 arranged on a spark discharge gap 11 side and a base member-joining part 52 that is made of a material having a lower melting point than the discharge part 51 and to be joined to an electrode base member 30. In a temporary joining step, the discharge chip 5 is temporarily joined, at the base member-joining part 52, to the electrode base member 30 by resistance welding. In a main joining step, the discharge chip 5 is joined, by laser welding, to the electrode base member 30 so that a side surface 511 of the discharge part 51 and a surface 31 of the electrode base member 30 are smoothly connected by a connecting surface 523 that has no sharp edge.

    摘要翻译: 一种制造火花塞1的方法,其中中心电极2和接地电极3中的至少一个包括放电芯片5.在芯片制造步骤中,放电芯片5通过将布置在放电芯片 火花放电间隙11侧和由具有比排出部51低的熔点的材料制成并与电极基体30接合的基体构件接合部52.在暂时接合步骤中,放电芯片5 通过电阻焊接在基部构件接合部52暂时接合到电极基体部件30。 在主接合步骤中,通过激光焊接将放电芯片5接合到电极基体部件30,使得放电部分51的侧表面511和电极基底部件30的表面31通过连接 没有锋利边缘的表面523。

    BONDING WIRE WINDING SPOOL, WINDING STRUCTURE, AND SPOOL CASE

    公开(公告)号:EP3651187A1

    公开(公告)日:2020-05-13

    申请号:EP18828058.0

    申请日:2018-07-03

    IPC分类号: H01L21/60

    摘要: An object of the present invention is to provide a winding spool for bonding wires, a winding structure for the winding spool, and a spool case for storing the spool, wherein a bonding wire wound on the spool has excellent unwinding properties against vibration and impacts occurring during long-distance transportation or attachment to a bonding device. The winding spool of the present invention is a winding spool for a bonding wire, the winding spool being made of a synthetic resin and comprising a perforated guide portion, a drum portion, and flange portions, wherein an inner surface of each flange portion has an inclined portion having an elevation angle of 76 degrees or more and 86 degrees or less, and the inclined portion has a vertical height (h) that is 50% or more of a vertical height (H) of the entire inner surface of the flange portion, whereby the problems can be solved. Moreover, a larger impact can be solved by the winding structure of a bonding wire of the present invention; that is, the height of an edge of the drum portion on which the bonding wire is wound is higher than the height of the center of the drum portion. In addition, a further larger impact can be solved by using the spool case for winding spools of the present invention. That is, in the spool case for winding spools comprising a cover portion and a body made of a synthetic resin, the body has an approximately square pyramid trapezoidal shape with an opening on a side of the cover portion, and side facing surfaces of the body each have one or more expanded portions.