Shaping processing method and shaping processing device for metal bipolar plate welding warpage

A technology for metal bipolar plates and processing methods, applied in metal processing equipment, sustainable manufacturing/processing, forming tools, etc. The plate cannot meet the use requirements, change the structural strength of the flow channel, etc., to achieve the effect of achieving surface quality, ensuring stability, and achieving strict control

Active Publication Date: 2018-11-20
SHANGHAI ZHIZHEN NEW ENERGY EQUIP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

This method needs to clamp the metal bipolar plates before the forming treatment, and the efficiency is low; the overall heating will change the strength of the flow channel structure. During the heat treatment process, the mutually extruded metal bipolar plates are prone

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  • Shaping processing method and shaping processing device for metal bipolar plate welding warpage
  • Shaping processing method and shaping processing device for metal bipolar plate welding warpage
  • Shaping processing method and shaping processing device for metal bipolar plate welding warpage

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Embodiment Construction

[0059] The technical scheme of a method for shaping and processing metal bipolar plate welding warpage and its shaping and processing device according to the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and the detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following specific embodiments.

[0060] One embodiment of the present invention provides a welding warping processing method for metal bipolar plates, which is suitable for, but not limited to, metal bipolar plates used in fuel cells. Wherein the metal bipolar plate may have a three-chamber structure, that is, the hydrogen chamber, the air / oxygen chamber, and the cooling liquid chamber are arranged at the same end. However, in different implementation manners, t...

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Abstract

The invention provides a shaping processing method and a shaping processing device for metal bipolar plate welding warpage. The inner stress of a metal bipolar plate shaping welding area is removed byadopting a 'point-to-point' resistor element heating manner, and a protection gas circuit provides a protection gas field, so that the surface quality of a metal bipolar plate during the heat treatment process is ensured. The invention provides the shaping processing method and the shaping processing device for metal bipolar plate welding warpage. The shaping processing method and the shaping processing device for metal bipolar plate welding warpage are suitable for metal bipolar plates used for fuel cells, local and automatic welding warpage shaping processing can be realized on the premiseof unchanging the welding process, and the metal bipolar plate welding warpage of the fuel cells is efficiently processed, so that the demand on high-accuracy preparing the metal bipolar plates of thefuel cells on a large scale can be met.

Description

technical field [0001] The invention relates to the technical field of laser welding and shaping, in particular, a metal bipolar plate welding warping shaping method and shaping processing device, which are particularly suitable for shaping and processing metal bipolar plates of fuel cells. Background technique [0002] It is known that fuel cells generate electrical energy through the electrochemical reaction of hydrogen and oxygen. Since the final product is water, it has become an important part of the current pollution-free and zero-emission new energy. [0003] Among them, due to limitations in volume and mass, the graphite plates commonly used in fuel cells are gradually being replaced by metal bipolar plates for carrying hydrogen, oxygen and cooling liquid. Among them, the metal bipolar plate currently used in the industry generally connects the anode plate and the cathode plate by laser welding to form a structure of “two plates and three fields”. [0004] For the m...

Claims

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Application Information

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IPC IPC(8): B21D1/06B21D37/16
CPCB21D1/06B21D37/16Y02P70/50
Inventor 蓝树槐徐一凡毕飞飞姜天豪彭林法
Owner SHANGHAI ZHIZHEN NEW ENERGY EQUIP CO LTD
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