公开(公告)号：US20210194016A1

公开(公告)日：2021-06-24

申请号：US17128713

申请日：2020-12-21

Applicant: NOK CORPORATION

Inventor： Junichi SHIMADA ,  Hajime YUI ,  Shigeru WATANABE ,  Toshihiro SHIMAZOE

IPC: H01M8/0206 ,  H01M8/0286

Abstract: A method of manufacturing a separator assembly for fuel cell includes a separator assembly forming step in which a separator assembly including a first metal separator and a second metal separator each having a protruding bead portion is formed by joining together the surfaces of the first and second metal separators opposite from their respective bead portions protruding, and a preload applying step in which a pair of platens apply a preload in a thickness direction of the separator assembly to a bead seal section formed of one pair of the bead portions, and thereby the bead seal section is plastically deformed. In the preload applying step, the preload applied to a linear portion of the bead seal section is set to be smaller than the preload applied to a curve portion of the bead seal section.