Continuous stamping forming die for large-area metal bipolar plate of fuel battery

A large-area metal, stamping and forming technology, applied in the field of manufacturing molds, can solve the problem of inconsistent forming height of runner grooves, and achieve the effects of improving transportation stability, preventing slippage, and high processing efficiency.

Active Publication Date: 2015-05-20
SHANGHAI JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a continuous stamping and forming die for large-area metal bipolar plates of fuel cells in order to overcome the above-mentioned defects in the prior art, which is suitable for large-scale continuous manufacturing of large-area metal bipolar plates for fuel cells, and at the same time solves the problem of flow path The problem of inconsistent groove forming height

Method used

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  • Continuous stamping forming die for large-area metal bipolar plate of fuel battery
  • Continuous stamping forming die for large-area metal bipolar plate of fuel battery
  • Continuous stamping forming die for large-area metal bipolar plate of fuel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A fuel cell large-area metal bipolar plate continuous stamping die, including a progressive die composed of 5 stations, station ① is to first punch four positioning pin holes, and then insert the positioning pins through the manipulator, and punch the positioning pin holes The cutting die is set on the slider; station ② is to form the parallel groove of the flow channel with compensation; station ③ is to punch special-shaped holes; station ④ is to trim and blank; station ⑤ is to pull out the positioning pin; After the plate passes through the stations ①, ②, and ③ in sequence, it goes to the station ④ to trim and blank the material to form a bipolar plate, and the station ⑤ takes the scrap after trimming out of the stamping die.

[0046] like Figure 2-Figure 3 As shown, the progressive die includes an upper die 1, a lower die 2, a transmission assembly, a roller 4 and a blanking conveyor belt 3, the upper die 1 is set opposite to the lower die 2, and the transmission as...

Embodiment 2

[0057] This embodiment is implemented under the following conditions of implementation and technical requirements:

[0058] The stamping force is 250 tons, the speed of the sprocket is 3° / sec, and the intermittent time is 10 seconds. The plate material is 316 stainless steel, and the thickness of the material is 0.1mm. The length of the slider is 250mm, the width is 50mm, the distance between the sliders on both sides is 440mm; the width of the material is 500mm, the positioning pin hole is a Φ10 round hole, the positioning pin is a Φ10 cylindrical pin, the distance between the positioning pin holes on the same side is 180mm, and the distance between the positioning pin holes on the opposite side 450mm; the station ⑤ of this embodiment is an empty station, and no manipulator for pulling out the positioning pin is installed.

[0059] The compensation mode of the stamping mold with parallel grooves selected in this embodiment is parabolic compensation with more in the middle and...

Embodiment 3

[0062] This embodiment is implemented under the following conditions of implementation and technical requirements:

[0063] The stamping force is 250 tons, the speed of the sprocket is 10° / sec, and the intermittent time is 20 seconds. The plate material is 316 stainless steel, and the thickness of the material is 0.1mm. The length of the slider is 220mm, the width is 50mm, the distance between the sliders on both sides is 430mm; the width of the material is 500mm, the positioning pin hole is a Φ10 round hole, the positioning pin is a Φ10 cylindrical pin, the distance between the positioning pin holes on the same side is 170mm, and the distance between the positioning pin holes on the opposite side 450mm.

[0064] The compensation method of the stamping die with parallel grooves selected in this embodiment is a parabolic and linear mixed compensation with more in the middle and less at both ends, which is a mixed application form of Embodiment 1 and Embodiment 2. The compensatio...

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Abstract

The invention relates to a continuous stamping forming die for a large-area metal bipolar plate of a fuel battery. The continuous stamping forming die comprises a progressive die consisting of five stations, wherein the station (1) is to punch four positioning pin holes and inserting positioning pins; the station (2) is to form a flow channel parallel groove in a compensation mode; the station (3) is to punch a special-shape hole; the station (4) is to perform trimming and blanking; the station (5) is to pull out the positioning pins; and after the plate passes through the stations (1), (2) and (3) sequentially, the plate enters the station (4) to be subjected to trimming and blanking to form the bipolar plate, and the station (5) is used for taking the waste materials after trimming out of the punching die. Compared with the prior art, the continuous punching forming die has the advantages of high forming precision, capacity of solving the problem about inconsistent forming height of the flow channel groove and the like.

Description

technical field [0001] The invention relates to a manufacturing die in the technical field of fuel cells, in particular to a continuous stamping and forming die for a large-area metal bipolar plate of a fuel cell. Background technique [0002] Today, when traditional energy sources such as oil and coal are in short supply and environmental pollution is becoming more and more serious, fuel cells have rapidly become a research hotspot in research institutions and industries in various countries due to their advantages of cleanliness, high efficiency, and renewable energy. Among them, proton exchange membrane fuel cells have broad application prospects and are considered to be one of the most competitive power sources for new energy vehicles. In addition to the common characteristics of fuel cells, this battery also has the characteristics of rapid startup at room temperature, no electrolyte loss, easy water discharge, long life, high specific power and high specific energy. P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10H01M8/02H01M4/88
CPCY02E60/50Y02P70/50
Inventor 彭林法茅梦云易培云来新民方亮
Owner SHANGHAI JIAOTONG UNIV
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