Method for manufacturing a separator

The method of forming specific recessed and protruding shapes on separator materials during pressing effectively prevents distortion, ensuring high productivity and reducing assembly errors by locking the material in place.

DE102019105144B4Active Publication Date: 2026-05-28TOYOTA JIDOSHA KK
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Patent Information

Application Number
DE102019105144
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-03-02
Filing Date
2019-02-28
Publication Date
2026-05-28
Estimated Expiration
2039-02-28

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Abstract

Method for producing a separator (20) comprising the following: a step of arranging a separator material (10) with a flow path formation area (11) between a first upper die (51) and a first lower die (50); a first pressing step of pressing the separator material (10) using the first upper die (51) and the first lower die (50) to form a first recessed and protruding shape (13) in the flow path formation area (11) and to form a second recessed and protruding shape (14) outside the flow path formation area (11); a step of an arrangement, after the first pressing step, of the separator (20) on which the first recessed and protruding form (13) and the second recessed and protruding form (14) are formed, between a second upper die (61) and a second lower die (60); a second pressing step of pressing the separator (20) using the second upper die (61) and the second lower die (60) to crush the second recessed and protruding form (14) by, wherein in the first pressing step the second recessed and protruding form (14) is formed outside the flow path formation area (11), such that a recessed and protruding height (H2) of the second recessed and protruding form (14) is higher than a recessed and protruding height (H1) of the first recessed and protruding form (13), and thereby preventing the separator (20) from being drawn in.
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Citation Information

Patent Citations

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