Title:
METHOD FOR FORMING STRAIGHT FLOW CHANNEL OF METAL BIPOLAR PLATE OF FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2021/043075
Kind Code:
A1
Abstract:
Provided is a method for forming a straight flow channel of a metal bipolar plate of a fuel cell, belonging to the technical field of fuel cell polar plate production, and solving the technical problems of being unable to realize continuous production and power required for machining being high in existing methods for machining a metal bipolar plate. The technical solution used relates to a method for forming a straight flow channel of a metal bipolar plate of a fuel cell, the process thereof involving: plate material pretreatment, low-temperature plate material heating (6), metal polar plate straight flow channel rolling (7), cutting of a gas and cooling liquid inlet and outlet on a metal polar plate (8), metal polar plate surface treatment (9), metal polar plate bonding to form a bipolar plate (10), and bipolar plate trimming (11), wherein hot rolling of a straight flow channel of the metal bipolar plate involves each straight flow channel on a plate material being formed by means of carrying out pre-forming twice and shaping once, and specifically, after all flow channels on the plate material are pre-formed twice, all the straight flow channels are shaped by a pair of shaping rollers to obtain the shape of the straight flow channels; and the design parameters of rollers for carrying out pre-forming twice and punch-dies of the shaping rollers are determined.
Inventors:
ZHAO FUQIANG (CN)
QI HUIQING (CN)
HUANG QINGXUE (CN)
WANG HONGWEI (CN)
ZHANG FANGPING (CN)
FAN XIAOYU (CN)
ZHAO LUN (CN)
ZHANG YANLEI (CN)
QI HUIQING (CN)
HUANG QINGXUE (CN)
WANG HONGWEI (CN)
ZHANG FANGPING (CN)
FAN XIAOYU (CN)
ZHAO LUN (CN)
ZHANG YANLEI (CN)
Application Number:
PCT/CN2020/111920
Publication Date:
March 11, 2021
Filing Date:
August 27, 2020
Export Citation:
Assignee:
UNIV TAIYUAN SCIENCE & TECH (CN)
UNIV TAIYUAN TECHNOLOGY (CN)
UNIV TAIYUAN TECHNOLOGY (CN)
International Classes:
H01M8/0258
Foreign References:
| CN110752385A | 2020-02-04 | |||
| CN108140853A | 2018-06-08 | |||
| CN104399839A | 2015-03-11 | |||
| CN106424260A | 2017-02-22 | |||
| CN110125216A | 2019-08-16 | |||
| US20150266078A1 | 2015-09-24 |
Attorney, Agent or Firm:
SHENZHEN ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
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