CN109821963B - Metal bipolar plate manufacturing device and working method thereof - Google Patents
Metal bipolar plate manufacturing device and working method thereof Download PDFInfo
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- CN109821963B CN109821963B CN201910250883.4A CN201910250883A CN109821963B CN 109821963 B CN109821963 B CN 109821963B CN 201910250883 A CN201910250883 A CN 201910250883A CN 109821963 B CN109821963 B CN 109821963B
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- 239000002184 metal Substances 0.000 title claims abstract description 94
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 94
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 15
- 239000011888 foil Substances 0.000 claims abstract description 49
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052802 copper Inorganic materials 0.000 claims abstract description 41
- 239000010949 copper Substances 0.000 claims abstract description 41
- 229920001342 Bakelite® Polymers 0.000 claims abstract description 17
- 239000004637 bakelite Substances 0.000 claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 239000002023 wood Substances 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 18
- 239000003990 capacitor Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 238000003754 machining Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a metal bipolar plate manufacturing device which comprises an upper supporting plate and a lower supporting plate, wherein the upper supporting plate and the lower supporting plate are connected through threaded rods, an upper concave die, an upper soft film and an upper impact plate are sequentially arranged between the upper supporting plate and the lower supporting plate from top to bottom, a metal foil is arranged below the upper impact plate, the middle sections of the threaded rods are all in threaded connection with a bakelite block extending horizontally forwards, the middle parts of the bakelite blocks are all provided with conductive copper blocks, the left end and the right end of the metal foil are respectively placed on the left conductive copper block and the right conductive copper block and are tightly pressed through a pressing block, the lower impact plate, the lower soft film and the lower concave die are symmetrically arranged below the metal foil along the plane of the metal foil and above an upper concave die, an upper soft film and an upper impact plate, and the lower soft film and the lower concave die are connected with wiring lugs for electrifying.
Description
Technical Field
The invention relates to a metal bipolar plate manufacturing device and a working method thereof.
Background
In the context of energy crisis and environmental crisis, research and development of new energy are becoming increasingly focused hot spots, and currently, bipolar plates mainly have three main categories: graphite sheets, graphite-polymer composite sheets, and metal sheets. The metal bipolar plate has good machining performance and compactness, can greatly improve the volume specific power of the electric pile, has good electric conductivity and thermal conductivity, and is easy to realize mass production, so that the cost of the electric pile can be reduced, and the manufacturing of the metal bipolar plate is valued by a plurality of researchers; the existing production method of the metal bipolar plate uses a hydraulic fine blanking press as a press, but the method for processing the metal bipolar plate based on the traditional stamping forming needs to prepare a high-precision male die and a high-precision female die, has high requirements on the guiding and matching precision of a die, and has high improvement cost on the shape of a groove and poor process flexibility; the sealed coil is also discharged through the capacitor bank, a transient pulse magnetic field is generated in the coil, induced eddy current is generated on the surface of the driving plate, the direction of the induced eddy current is opposite to the current direction of the coil, the coil and the driving plate generate repulsive force, the repulsive force acts on the soft film, and the soft film drives the plate blank to be pasted and formed. In the forming mode based on electromagnetic force, in the continuous processing process, the coil has the heating problem under the action of strong pulse current for a long time, the service life is short, and the production cost is increased; in addition, the processing modes such as chemical etching, wire cutting, roll forming, mechanical cutting and the like have the advantages of low processing efficiency, high processing cost and difficult mass production.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the invention is to provide the metal bipolar plate manufacturing device and the working method thereof, which have the advantages of reasonable structure, low cost, practicality and high efficiency.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a metal bipolar plate manufacturing installation, includes two upper and lower backup pads, connects through the threaded rod between two backup pads, goes up the top-down in proper order between upper and lower backup pads and is last die, goes up the soft membrane and goes up the impact plate, goes up the impact plate below and is provided with a metal foil, the equal spiro union in threaded rod middle section has a level to extend forward bakelite piece, and this bakelite piece middle part all is provided with conductive copper piece, and both ends are placed respectively about this metal foil to the conductive copper piece to compress tightly through the compact heap, and the metal foil below all is provided with down impact plate, lower soft membrane, lower die along metal foil place plane and top upper die, upper impact plate symmetry, this left and right sides conductive copper piece all is connected with the lug and carries out the circular telegram.
Further, the threaded rod is provided with four, installs respectively in lower backup pad upper surface four corners department, and vertical upwards extends and pass electric wood piece and last backup pad to adjust fixedly through nut and gasket at last backup pad upper surface, threaded hole has all been offered in the upper and lower penetration of this electric wood piece front and back end, and adjusts fixedly through the nut.
Further, the bakelite piece middle part has all offered a recess down, and this recess all extends back and forth, and the conductive copper piece is higher than the recess on vertical height 1mm, and conductive copper piece is all installed in the recess, and four through-holes have all been seted up to this recess and bakelite piece along its length direction upper and lower to supply four bolts to wear to establish from bottom to top, be located the through-hole of conductive copper piece front and back end and all be used for fixed lug, be located two through-holes at conductive copper piece middle part and all be used for the bolt to connect conductive copper piece, foil, compact heap.
Further, two fixing holes are formed in the left and right ends of the lower surface of the upper female die, two fixing holes are formed in the left and right ends of the upper surface of the lower female die, so that the female die and the supporting plate are fixedly assembled through bolts, a cutting groove is formed in the bottom end of the upper female die, the inner wall of the cutting groove is a cutting edge, cutting blanking is facilitated, and the shape and the size of the lower female die are consistent with those of the upper female die.
Furthermore, the shape and the size of the upper soft film are consistent with those of the lower soft film, gaps for placing blanks are reserved between the soft films and the female die, and the upper soft film and the lower soft film are cuboid rubber bodies.
Further, the upper impact plate and the lower impact plate are consistent in shape and size, the upper part of the upper impact plate is tightly attached to the upper soft film, and the lower surface of the upper impact plate is attached to the metal foil; the upper surface of the lower impact plate is attached to the metal foil, the lower surface of the lower impact plate is tightly attached to the lower soft film, and the upper impact plate and the lower impact plate are made of high-strength steel plates.
Further, the wiring lugs of the left and right conductive copper blocks are respectively externally connected with two wiring terminals of a discharging system for providing strong pulse current, and the discharging system comprises a power supply, a transformer, a rectifier, a current limiting resistor, a capacitor bank, a charging switch and a discharging switch.
Further, the round holes are formed in one end of each lug for the bolts to pass through and fix, and the thickness of each lug is larger than 4mm, so that the lug is more stable when strong pulse current passes through.
A working method of a metal bipolar plate manufacturing device comprises the following steps: firstly placing a blank on a lower female die, sequentially mounting an upper soft film, a lower soft film and a lower impact plate, adjusting nuts on electric wood blocks to adjust the horizontal position of the electric wood blocks, enabling the upper surfaces of left and right conductive copper blocks on the electric wood blocks to be flush with the upper surface of the lower impact plate, horizontally placing a metal foil at the right center of the lower impact plate, enabling the left and right ends of the metal foil to extend to the left and right conductive copper blocks, compacting by a compacting block, screwing the nuts after compacting to fix the electric wood blocks, and sequentially mounting an upper impact plate, an upper soft film, a blank, an upper female die and an upper supporting plate;
and (3) charging equipment: determining impact force required by machining according to the thickness and the area of the blank, setting discharge voltage according to the impact force, closing a charging switch, and charging the capacitor bank until the charging is finished;
and (3) discharging equipment: finally, closing a discharge switch, discharging the metal foil by a capacitor bank, discharging the metal foil by the closed discharge switch, and enabling instantaneous strong pulse current to pass through the metal foil, so that the metal foil is exploded to generate high-temperature and high-pressure plasma;
impact forming: the high-temperature and high-pressure plasma releases strong pressure, the strong pressure acts on the impact plate, the impact plate pushes the soft film to act on the blank, so that the blank and the female die cooperate, when the blank passes through the cutting edge of the female die, the blank is sheared firstly, the shape required by the metal bipolar plate is obtained, and then the soft film continues to push the metal bipolar plate to move, so that the forming of the bipolar plate runner is completed;
and (5) taking a piece and resetting: and (3) rotating the nut above the threaded rod, taking out the processed metal bipolar plate, and putting a new metal bipolar plate blank and metal foil into the metal bipolar plate blank to prepare for the next processing of the metal bipolar plate.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention applies the principle of electric explosion forming in the metal bipolar plate forming process, has short forming time, can improve the forming performance of the material by high-speed loading, improves the forming limit of the material, can be used for forming the material difficult to form, achieves good forming effect and increases the selection range of raw materials.
2. Compared with the traditional stamping forming process, the invention has simple tooling, only needs a single-side die, and improves the flexibility of modifying the flow field of the metal bipolar plate.
3. The metal foil is low in cost, can be replaced after each processing is finished, can ensure that the processing is continuously carried out, solves the problems of heating and service life of the coil during electromagnetic forming work, can form two metal bipolar plates at one time, improves the production efficiency, and reduces the cost.
4. Integrates the advantages of soft film forming, reduces the rebound of the metal bipolar plate and ensures the quality.
5. The method adopts the driving mode of electric explosion driving force, and widens the process window for forming the metal bipolar plate.
The invention will be described in further detail with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a schematic view in semi-section of an embodiment of the invention except for bakelite blocks;
FIG. 2 is a circuit diagram of a discharge system according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the lower die of FIG. 1;
FIG. 4 is a schematic view of the structure of the electric wood block in FIG. 1;
fig. 5 is a schematic structural view of the metal foil in fig. 1.
In the figure: 1-supporting plate, 2-threaded rod, 3-upper female die, 4-upper soft film, 5-upper impact plate, 6-metal foil, 7-electric wood block, 8-conductive copper block, 9-compression block, 10-lower impact plate, 11-lower soft film, 12-lower female die, 13-wiring lug, 14-lower supporting plate, 15-upper supporting plate, 16-nut, 17-threaded hole, 18-groove, 19-through hole, 20-bolt, 21-cutting groove, 22-power supply, 23-transformer, 24-rectifier, 25-current limiting resistor, 26-capacitor bank, 27-charging switch, 28-discharging switch, 29-blank, 30-fixed hole.
Detailed Description
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1-5, a metal bipolar plate manufacturing device comprises an upper supporting plate 1 and a lower supporting plate 1, wherein the upper supporting plate and the lower supporting plate are connected through a threaded rod 2, an upper concave die 3, an upper soft film 4 and an upper impact plate 5 are sequentially arranged between the upper supporting plate and the lower supporting plate from top to bottom, a metal foil 6 is arranged below the upper impact plate, a bakelite block 7 extending forward horizontally is connected to the middle section of the threaded rod in a threaded manner, conductive copper blocks 8 are respectively arranged in the middle of the bakelite block, the left end and the right end of the metal foil are respectively placed on the left conductive copper block and the right conductive copper block and are tightly pressed through a pressing block 9, a lower impact plate 10, a lower soft film 11 and a lower concave die 12 are symmetrically arranged below the metal foil along the plane of the metal foil and the upper concave die, the upper soft film and the upper impact plate, and the left conductive copper block and the right conductive copper block are connected with a wiring lug 13 for electrifying.
In the embodiment of the invention, four threaded rods are arranged, are respectively arranged at four corners of the upper surface of the lower support plate, vertically upwards extend through the electric wood block and the upper support plate 15, and are adjusted and fixed on the upper surface of the upper support plate through nuts 16 and gaskets, and threaded holes 17 are vertically and vertically formed in the front end and the rear end of the electric wood block, and are adjusted and fixed through the nuts.
In the embodiment of the invention, the middle part of the bakelite block is provided with a groove 18 downwards, the groove extends forwards and backwards, the conductive copper block is higher than the groove by 1mm in vertical height, the conductive copper block is arranged in the groove, the groove and the bakelite block are provided with four through holes 19 vertically penetrating through along the length direction of the groove and the bakelite block for four bolts to pass through from bottom to top, the through holes at the front end and the rear end of the conductive copper block are used for fixing the wiring lug, and the two through holes at the middle part of the conductive copper block are used for connecting the conductive copper block, the metal foil and the compression block by the bolts 20.
In the embodiment of the invention, two fixing holes 30 are respectively formed at the left and right ends of the lower surface of the upper die, two fixing holes are respectively formed at the left and right ends of the upper surface of the lower die, so that the die and the supporting plate can be fixedly assembled through bolts, a cutting groove 21 is formed at the bottom end of the upper die, the inner wall of the cutting groove is a cutting edge, the cutting blanking is facilitated, and the shapes and the sizes of the lower die and the upper die are consistent.
In the embodiment of the invention, the upper soft film and the lower soft film have the same shape and size, a gap for placing the blank 29 is reserved between the soft film and the female die, and the upper soft film and the lower soft film are cuboid rubber bodies.
In the embodiment of the invention, the upper impact plate and the lower impact plate are consistent in shape and size, the upper part of the upper impact plate is tightly attached to the upper soft film, and the lower surface is attached to the metal foil; the upper surface of the lower impact plate is attached to the metal foil, the lower surface of the lower impact plate is tightly attached to the lower soft film, and the upper impact plate and the lower impact plate are made of high-strength steel plates.
In the embodiment of the invention, the wiring lugs of the left and right conductive copper blocks are respectively externally connected with two wiring terminals of a discharging system for providing strong pulse current, and the discharging system comprises a power supply 22, a transformer 23, a rectifier 24, a current limiting resistor 25, a capacitor bank 26, a charging switch 27 and a discharging switch 28.
In the embodiment of the invention, the wire lugs are provided with round holes at one ends for bolts to pass through and fix, and the thickness of the wire lugs is larger than 4mm, so that the wire lugs are more stable when strong pulse current passes through.
A working method of a metal bipolar plate manufacturing device comprises the following steps: firstly placing a blank on a lower female die, sequentially mounting an upper soft film, a lower soft film and a lower impact plate, adjusting nuts on electric wood blocks to adjust the horizontal position of the electric wood blocks, enabling the upper surfaces of left and right conductive copper blocks on the electric wood blocks to be flush with the upper surface of the lower impact plate, horizontally placing a metal foil at the right center of the lower impact plate, enabling the left and right ends of the metal foil to extend to the left and right conductive copper blocks, compacting by a compacting block, screwing the nuts after compacting to fix the electric wood blocks, and sequentially mounting an upper impact plate, an upper soft film, a blank, an upper female die and an upper supporting plate;
and (3) charging equipment: determining impact force required by machining according to the thickness and the area of the blank, setting discharge voltage according to the impact force, closing a charging switch, and charging the capacitor bank until the charging is finished;
and (3) discharging equipment: finally, closing a discharge switch, discharging the metal foil by a capacitor bank, discharging the metal foil by the closed discharge switch, and enabling instantaneous strong pulse current to pass through the metal foil, so that the metal foil is exploded to generate high-temperature and high-pressure plasma;
impact forming: the high-temperature and high-pressure plasma releases strong pressure, the strong pressure acts on the impact plate, the impact plate pushes the soft film to act on the blank, so that the blank and the female die cooperate, when the blank passes through the cutting edge of the female die, the blank is sheared firstly, the shape required by the metal bipolar plate is obtained, and then the soft film continues to push the metal bipolar plate to move, so that the forming of the bipolar plate runner is completed;
and (5) taking a piece and resetting: and (3) rotating the nut above the threaded rod, taking out the processed metal bipolar plate, and putting a new metal bipolar plate blank and metal foil into the metal bipolar plate blank to prepare for the next processing of the metal bipolar plate.
The present invention is not limited to the above-described preferred embodiments, and any person can obtain other various forms of metal bipolar plate manufacturing apparatuses and methods for operating the same in light of the present invention. All equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.
Claims (7)
1. A metal bipolar plate manufacturing apparatus, characterized in that: the upper die, the upper soft film and the upper impact plate are sequentially arranged between the upper support plate and the lower support plate from top to bottom, a metal foil is arranged below the upper impact plate, the middle section of the threaded rod is in threaded connection with a bakelite block extending horizontally and forwards, the middle part of the bakelite block is provided with a conductive copper block, the left end and the right end of the metal foil are respectively placed on the left conductive copper block and the right conductive copper block and are pressed by a pressing block, the lower part of the metal foil is symmetrically provided with a lower impact plate, a lower soft film and a lower die along the plane of the metal foil and the upper die, the upper soft film and the upper impact plate, and the left conductive copper block and the right conductive copper block are connected with a wiring lug for electrifying;
the middle part of the bakelite block is provided with a groove downwards, the groove extends forwards and backwards, the conductive copper block is higher than the groove by 1mm in vertical height, the conductive copper block is arranged in the groove, the groove and the bakelite block are provided with four through holes vertically penetrating through along the length direction of the groove and the bakelite block so that four bolts penetrate through from bottom to top, the through holes at the front end and the rear end of the conductive copper block are used for fixing the wiring lug, and the two through holes at the middle part of the conductive copper block are used for connecting the conductive copper block, the metal foil and the compression block through the bolts;
the wiring lugs positioned on the left and right conductive copper blocks are respectively externally connected with two wiring terminals of a discharging system for providing strong pulse current, and the discharging system comprises a power supply, a transformer, a rectifier, a current limiting resistor, a capacitor bank, a charging switch and a discharging switch.
2. A metal bipolar plate manufacturing apparatus according to claim 1, wherein: the threaded rod is provided with four, installs respectively in lower backup pad upper surface four corners department, and vertical upwards extends and pass electric wood piece and last backup pad to adjust fixedly through nut and gasket in last backup pad upper surface, threaded hole has all been offered in the upper and lower penetration of this electric wood piece front and back end, and adjusts fixedly through the nut.
3. A metal bipolar plate manufacturing apparatus according to claim 1, wherein: two fixing holes are formed in the left and right ends of the lower surface of the upper female die, two fixing holes are formed in the left and right ends of the upper surface of the lower female die, so that the female die and the supporting plate are fixedly assembled through bolts, a cutting groove is formed in the bottom end of the upper female die, the inner wall of the cutting groove is a cutting edge, cutting blanking is facilitated, and the shape and the size of the lower female die are consistent with those of the upper female die.
4. A metal bipolar plate manufacturing apparatus according to claim 1, wherein: the shape and the size of the upper soft film are consistent with those of the lower soft film, gaps for placing blanks are reserved between the soft films and the female die, and the upper soft film and the lower soft film are cuboid rubber bodies.
5. A metal bipolar plate manufacturing apparatus according to claim 1, wherein: the upper impact plate and the lower impact plate are consistent in shape and size, the upper part of the upper impact plate is tightly attached to the upper soft film, and the lower surface of the upper impact plate is attached to the metal foil; the upper surface of the lower impact plate is attached to the metal foil, the lower surface of the lower impact plate is tightly attached to the lower soft film, and the upper impact plate and the lower impact plate are made of high-strength steel plates.
6. A metal bipolar plate manufacturing apparatus according to claim 1, wherein: the lug has all been offered the round hole in its one end for the bolt to pass fixedly, and the thickness of lug is all greater than 4mm to it is more stable when guaranteeing the strong pulse current to pass through.
7. A method of operating a metal bipolar plate manufacturing apparatus according to any one of claims 1 to 6, wherein the metal bipolar plate manufacturing apparatus is adapted to: firstly placing a blank on a lower female die, sequentially mounting an upper soft film, a lower soft film and a lower impact plate, adjusting nuts on electric wood blocks to adjust the horizontal position of the electric wood blocks, enabling the upper surfaces of left and right conductive copper blocks on the electric wood blocks to be flush with the upper surface of the lower impact plate, horizontally placing a metal foil at the right center of the lower impact plate, enabling the left and right ends of the metal foil to extend to the left and right conductive copper blocks, compacting by a compacting block, screwing the nuts after compacting to fix the electric wood blocks, and sequentially mounting an upper impact plate, an upper soft film, a blank, an upper female die and an upper supporting plate;
and (3) charging equipment: determining impact force required by machining according to the thickness and the area of the blank, setting discharge voltage according to the impact force, closing a charging switch, and charging the capacitor bank until the charging is finished;
and (3) discharging equipment: finally, closing a discharge switch, discharging the metal foil by a capacitor bank, discharging the metal foil by the closed discharge switch, and enabling instantaneous strong pulse current to pass through the metal foil, so that the metal foil is exploded to generate high-temperature and high-pressure plasma;
impact forming: the high-temperature and high-pressure plasma releases strong pressure, the strong pressure acts on the impact plate, the impact plate pushes the soft film to act on the blank, so that the blank and the female die cooperate, when the blank passes through the cutting edge of the female die, the blank is sheared firstly, the shape required by the metal bipolar plate is obtained, and then the soft film continues to push the metal bipolar plate to move, so that the forming of the bipolar plate runner is completed;
and (5) taking a piece and resetting: and (3) rotating the nut above the threaded rod, taking out the processed metal bipolar plate, and putting a new metal bipolar plate blank and metal foil into the metal bipolar plate blank to prepare for the next processing of the metal bipolar plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910250883.4A CN109821963B (en) | 2019-03-29 | 2019-03-29 | Metal bipolar plate manufacturing device and working method thereof |
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| CN201910250883.4A CN109821963B (en) | 2019-03-29 | 2019-03-29 | Metal bipolar plate manufacturing device and working method thereof |
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| CN109821963B true CN109821963B (en) | 2023-12-08 |
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| CN108655251A (en) * | 2018-04-16 | 2018-10-16 | 华中科技大学 | A kind of metal bipolar board manufacturing apparatus and method |
| CN108856532A (en) * | 2018-06-27 | 2018-11-23 | 武汉理工大学 | A kind of lightweight high-intensity sheet metal high speed impact rivet welding composite joint technique |
| CN209792365U (en) * | 2019-03-29 | 2019-12-17 | 福州大学 | Metal bipolar plate manufacturing device |
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