公开(公告)号：US20210194019A1

公开(公告)日：2021-06-24

申请号：US17128547

申请日：2020-12-21

Applicant: NOK CORPORATION ,  Honda Motor Co., Ltd.

Inventor： Yohei SANO ,  Shigeru WATANABE ,  Akihito GIGA ,  Suguru OHMORI

IPC: H01M8/0228 ,  H01M8/0206 ,  H01M8/0276 ,  H01M8/10

Abstract: A method includes a forming step of forming a first metal separator and a second metal separator each including a protruding sealing bead portion and a protruding stopper bead portion; a joining step of joining surfaces of the first metal separator and the second metal separator on sides opposite to sides on which their respective sealing bead portions protrude, and attaching seal members in an extension direction or on distal ends of the sealing bead portion; and a preload applying step of applying preload to a bead seal section formed of one pair of the sealing bead portions and the seal members and a stopper section formed of one pair of the stopper bead portions in a height direction thereof, thereby plastically deforming the bead seal section and the stopper section simultaneously.

公开(公告)号：US20210111416A1

公开(公告)日：2021-04-15

申请号：US16970118

申请日：2019-09-24

Applicant: NOK CORPORATION

Inventor： Yohei SANO ,  Toshihiro SHIMAZOE

IPC: H01M8/0276 ,  H01M8/0282 ,  H01M8/0286 ,  H01M8/0284 ,  B21D22/02 ,  F16J15/08

Abstract: A metal bead seal with uniform sealing surface pressure and improved sealability is provided. A sealing bead is integrated with a basal part made of metal, and includes a curved part that is curved in a plan view and that includes a maximum bead width part having a maximum bead width w1, a straight part that is straight in a plan view and continuous from the curved part, the straight part including a minimum bead width part having a minimum bead width, a gradually varying bead width part that is positioned between the maximum bead width part and the minimum bead width part, the gradually varying bead width part having its bead width continuously varied from the maximum bead width to the minimum bead width.