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A processing device and processing method for a bipolar plate with a complex flow field and a special-shaped cross-section

A special-shaped section and processing device technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve problems such as limiting the application of laser etching technology, and achieve the effect of improving processing and forming quality, simple process and high finish

Active Publication Date: 2021-11-19
WENZHOU UNIVERSITY
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Problems solved by technology

There are still certain technical difficulties in the processing of flow channels with special-shaped cross-sections, which limits the application of laser etching technology in the field of fuel cell technology

Method used

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  • A processing device and processing method for a bipolar plate with a complex flow field and a special-shaped cross-section
  • A processing device and processing method for a bipolar plate with a complex flow field and a special-shaped cross-section
  • A processing device and processing method for a bipolar plate with a complex flow field and a special-shaped cross-section

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Embodiment Construction

[0039] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

[0040] See attached Figure 1-6 , a processing device for a bipolar plate with a complex flow field with a special-shaped cross-section disclosed in the technical solution of the present invention, including a laser 1, a sealed cabin 3, a fixed platform mechanism 4 for fixing the bipolar plate, and a fixed platform mechanism 4 for driving the Rotating rotating mechanism 2, the laser 1 is arranged above the fixed platform mechanism 4, the rotating mechanism 2 is arranged in the sealed cabin 3, and the fixed platform mechanism 4 is arranged on the rotating mechanism 2, so The rotating mechanism 2 is...

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Abstract

The invention relates to a processing device and a composite processing technology for a bipolar plate with a complex cross-section and a complex flow field. The processing device includes a laser, a rotating mechanism, a sealed cabin, and a fixed platform mechanism for fixing the bipolar plate. The composite processing technology Including the use of laser precision etching technology and laser polishing technology on the processing device to process and post-process the bipolar plate. By adopting the above technical solution, the processing of flow fields with arbitrary complex structures can be solved. The processing device changes the laser and bipolar plate. The angle between the plates, and then use laser precision etching technology to realize the processing of flow channels with special-shaped cross-section shapes, and use laser polishing technology as a post-processing process to solve the removal of oxides and inclusions in the flow channels after etching and improve the flow field Surface finish, which in turn improves bipolar plate performance.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a processing method of a processing device for a bipolar plate with a complex flow field with a special-shaped cross-section. Background technique [0002] Proton Exchange Membrane Fuel Cell (PEMFC) has considerable market application prospects because of its high energy conversion rate, no pollution, fast start-up and other advantages. Compared with a heat engine, the chemical energy of a fuel cell is directly converted into electrical energy without the need for an initial conversion into heat. Therefore, the conversion is not limited by the Carnot cycle, and theoretically a high efficiency of 90% conversion can be achieved. [0003] The core of a fuel cell is a membrane electrode and a bipolar plate. Membrane electrodes are places for electrochemical reactions; bipolar plates provide gas distribution and current collection. In order to complete the two tasks of gas distri...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/362B23K26/12B23K26/352B23K26/08B23K26/70H01M8/0258
CPCB23K26/0823B23K26/12B23K26/362B23K26/70B23K26/3576B23K2101/36H01M8/0258Y02E60/50
Inventor 张健陈宗汪黄鹏奕李卓原杨林潘晓铭
Owner WENZHOU UNIVERSITY
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