CN115275247A - Preparation device and method of surface anticorrosive coating of metal bipolar plate of fuel cell - Google Patents
Preparation device and method of surface anticorrosive coating of metal bipolar plate of fuel cell Download PDFInfo
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- CN115275247A CN115275247A CN202211034564.8A CN202211034564A CN115275247A CN 115275247 A CN115275247 A CN 115275247A CN 202211034564 A CN202211034564 A CN 202211034564A CN 115275247 A CN115275247 A CN 115275247A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/50—Substrate holders
- C23C14/505—Substrate holders for rotation of the substrates
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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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- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a preparation device of an anticorrosive coating on the surface of a metal bipolar plate of a fuel cell, which comprises a machine body, wherein auxiliary box bodies are symmetrically arranged on two sides of the machine body, the machine body is communicated with the two auxiliary box bodies, a first slide rail is arranged in the machine body, a second slide rail is arranged in the auxiliary box bodies, reaction mechanisms are arranged in the two auxiliary box bodies, each reaction mechanism comprises a base, the bases are slidably arranged on the first slide rail and the second slide rail, a rotary table is rotatably connected to the bases, and support columns are fixedly arranged on the rotary table. The device carries out the film coating of the metal bipolar plate in one auxiliary box body, so that the machine body is in an idle state, the base in the other auxiliary box body can be moved into the machine body to repeat the operations of the steps S1 to S4, and the film coating of the metal bipolar plate can be carried out alternately at least in the manufacturing process, so that the double-line work is realized, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of battery bipolar plate manufacturing, and particularly relates to a device and a method for preparing a surface anticorrosive coating of a fuel battery metal bipolar plate.
Background
A fuel cell is a chemical device that directly converts chemical energy of fuel into electric energy, and is also called an electrochemical generator. It is the fourth power generation technology following hydroelectric power generation, thermal power generation and atomic power generation. The fuel cell converts the Gibbs free energy in the chemical energy of the fuel into electric energy through electrochemical reaction, and is not limited by the Carnot cycle effect, so the efficiency is high; in addition, fuel and oxygen are used as raw materials for the fuel cell, and mechanical transmission parts are not arranged, so that the discharged harmful gas is extremely little, and the service life is long.
In the process of producing and manufacturing the metal bipolar plate in the fuel cell, an anti-corrosion coating needs to be plated on the surface of the metal bipolar plate, so that the safety of the use process is ensured, the service life is prolonged, a coating machine is generally used for coating and adding the surface of the metal bipolar plate, but the existing technology and equipment can only carry out single-line coating, so that the preparation efficiency of the coating is lower.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a device and a method for preparing a surface anticorrosive coating of a metal bipolar plate of a fuel cell.
The invention provides a preparation device of an anticorrosive coating on the surface of a metal bipolar plate of a fuel cell, which comprises a machine body, wherein auxiliary box bodies are symmetrically arranged on two sides of the machine body, the machine body is communicated with the two auxiliary box bodies, a first slide rail is arranged in the machine body, a second slide rail is arranged in the auxiliary box bodies, reaction mechanisms are arranged in the two auxiliary box bodies, each reaction mechanism comprises a base, the bases are slidably arranged on the first slide rail and the second slide rail, a rotary table is rotatably connected to the bases, a support column is fixedly arranged on the rotary table, a plurality of placing frames are arranged on the support column, and the placing frames are used for hanging the metal bipolar plate of the cell;
the bottom of the base is provided with a driving mechanism, the base moves on a first sliding rail through the driving mechanism, the inner wall of the auxiliary box body is provided with a sliding groove, the sliding groove is arranged at one end close to the machine body, a separation plate is inserted on the sliding groove in a sliding manner, a lifting mechanism is arranged on the auxiliary box body, and the separation plate moves on the sliding groove through the lifting mechanism;
the heating device is characterized in that a plurality of heating pipes are arranged on the inner wall of one side of the machine body and used for heating the interior of the machine body, a plurality of first air pipes are connected to one end of the machine body in an installing mode, and a plurality of second air pipes are connected to one side of the auxiliary box body in an installing mode.
Preferably, the organism is provided with the sealing strip with supplementary box junction, the division board slides and passes the sealing strip, elevating system includes first motor and threaded rod, the drive end and the threaded rod fixed connection of first motor, the upper end of division board is connected with U type axle, the threaded rod screw thread passes U type axle.
Preferably, the base is rotatably provided with a rotating wheel, the rotating wheel is contacted with the rotating disc, the edge of the rotating wheel is abutted against the rotating disc, the bottom of the base is provided with a second motor, and the driving end of the second motor is fixedly connected with one side of the rotating wheel.
Preferably, the rack includes the fan-shaped frame, a plurality of slots have been seted up on the fan-shaped frame, it is equipped with the cutting to insert on the slot, a plurality of cross axles of fixedly connected with on the cutting, metal bipolar plate hangs in proper order on the cross axle.
Preferably, the bottom symmetry fixed mounting of base has the draw runner, two the draw runner is respectively with first slide rail sliding connection.
Preferably, a connecting plate is fixedly connected between the two sliding strips, a plurality of rollers are rotatably connected to the two connecting plates through rotating shafts, the rollers abut against the first sliding rail, and the driving mechanism is connected with the rollers.
Preferably, actuating mechanism includes two intermeshing's gear, gear revolve installs in the bottom of base, two first belt has all been cup jointed to one side of gear, each first belt cup joints with the pivot of two gyro wheel one sides of one side, one of them the opposite side fixedly connected with belt axle of gear, there is the third motor bottom still fixed mounting of base, the drive end fixedly connected with drive shaft of third motor, cup jointed the second belt between drive shaft and the belt axle.
A preparation method of a fuel cell metal bipolar plate surface anticorrosive coating comprises the following steps:
s1: soaking the metal bipolar plate to be plated with the anticorrosive coating in ultrasonic cleaning equipment, ultrasonically cleaning the surface of the metal bipolar plate, and drying the surface of the metal bipolar plate in a drying box at the drying temperature of 90 ℃;
s2: the edges of the dried metal bipolar plates are clamped by a clamp, the metal bipolar plates are sequentially hung on a cross shaft by the clamp, a closed cabinet door of the machine body is firstly vacuumized in the machine body through one of the first air pipes, then the heating pipe is electrified to heat the interior of the machine body, the interior of the machine body is kept at 200-300 ℃, then argon is introduced into the machine body through the other first air pipe, internal parts are started, the surface of the metal bipolar plate is subjected to ion sputtering, in order to enable the sputtering to be more uniform, the second motor drives the rotating wheel to rotate through the driving end, the rotating wheel is in contact with the rotating disc, so that the placing frame is driven to rotate along with the rotation of the rotating disc, the hung metal bipolar plates slowly rotate for 20-35min, and the argon is continuously introduced until the self-healing deposition layer is completed;
s3: the auxiliary box body on one side is vacuumized through one of the second air pipes, the lifting mechanism is started, the first motor drives the fixed threaded rod to rotate through the driving end, the U-shaped shaft drives the partition plate to move up and down along with the rotation of the threaded rod, so that the partition plate moves upwards, the machine body is communicated with the auxiliary box body, the driving mechanism is started again, the third motor drives the driving shaft to rotate through driving, the driving shaft drives the belt shaft to rotate through the second belt, the belt shaft drives one of the gears to rotate, the two meshed gears rotate, the gears drive the corresponding rollers to rotate through the first belt, the base moves into the second sliding rail from the first sliding rail along with the rotation of the rollers, and the lifting mechanism is started again to separate the partition plate from spaces for putting down the machine body and the auxiliary box body;
s4: introducing helium gas into the auxiliary box body through another second air pipe to deposit a super-corrosion-resistant layer, simultaneously introducing argon gas and oxygen gas into the auxiliary box body for 30-60min, then closing the oxygen gas, replacing and introducing nitrogen gas for 30-60min, and finally closing the nitrogen gas and introducing argon gas for 30-60min, wherein the tungsten alloy target material is always in an open state and is set to be 50-120A;
s5: the metal bipolar plate is coated in one auxiliary box body, the machine body is in an idle state, the base in the other auxiliary box body can be moved into the machine body to repeat the operations S1-S4, and the metal bipolar plate can be coated alternately at least in the manufacturing process, so that double-line work is realized, and the working efficiency is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. when the surface of the bipolar plate is coated, in order to enable reactants to be fully contacted with the surface of the bipolar plate, the second motor drives the rotating wheel to rotate through the driving end, the rotating wheel is contacted with the edge of the rotating disc, and the rotating disc is driven to rotate through the rotating wheel under the action of friction force, so that the surface of the metal bipolar plate can be better coated with a film along with the rotation of the placing frame;
2. the metal bipolar plate is coated in one auxiliary box body, so that the machine body is in an idle state, the base in the other auxiliary box body can be moved into the machine body to repeat the operations of the steps S1-S4, and the metal bipolar plate can be coated alternately at least in the manufacturing process, so that double-line work is realized, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic perspective view of an apparatus for preparing a surface anti-corrosive coating of a metal bipolar plate for a fuel cell according to the present invention;
FIG. 2 is a schematic top view of an apparatus for preparing an anticorrosive coating on the surface of a metal bipolar plate of a fuel cell according to the present invention;
FIG. 3 is a schematic structural view of a driving mechanism;
fig. 4 is a schematic structural view of the rack.
In the figure: the automatic cutting machine comprises a machine body 1, an auxiliary box body 2, a first sliding rail 3, a second sliding rail 4, a base 5, a rotary table 6, a rotating wheel 7, a placing frame 8, a supporting column 9, a heating pipe 10, a first air pipe 11, a second air pipe 12, a sliding chute 13, a first motor 14, a threaded rod 15, a 16U-shaped shaft 17, a partition plate 18, a sealing strip 19, a sliding strip 20, a second motor 20, a connecting plate 21, a roller 22, a first belt 23, a gear 24, a third motor 25, a driving shaft 26, a second belt 27, a belt shaft 28, a fan-shaped frame 29, a transverse shaft 30 and an inserting strip 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a device for preparing a surface anticorrosive coating of a fuel cell metal bipolar plate comprises a machine body 1, auxiliary box bodies 2 are symmetrically arranged on two sides of the machine body 1, the machine body 1 and the two auxiliary box bodies 2 are communicated, a first slide rail 3 is arranged in the machine body 1, a second slide rail 4 is arranged in the auxiliary box bodies 2, reaction mechanisms are arranged in the two auxiliary box bodies 2, each reaction mechanism comprises a base 5, the bases 5 are slidably arranged on the first slide rail 3 and the second slide rail 4, a rotary table 6 is rotatably connected to the bases 5, a support column 9 is fixedly arranged on the rotary table 6, a plurality of placing frames 8 are arranged on the support column 9, and the placing frames 8 are used for hanging the metal bipolar plate of a battery;
a driving mechanism is installed at the bottom of the base 5, the base 5 moves on the first slide rail 3 through the driving mechanism, a slide groove 13 is formed in the inner wall of the auxiliary box body 2, the slide groove 13 is formed in one end close to the machine body 1, a partition plate 17 is inserted in the slide groove 13 in a sliding mode, a lifting mechanism is installed on the auxiliary box body 2, and the partition plate 17 moves on the slide groove 13 through the lifting mechanism;
be provided with a plurality of heating pipes 10 on one side inner wall of organism 1, heating pipe 10 is used for heating organism 1 is inside, and the one end erection joint of organism 1 has a plurality of first trachea 11, and one side erection joint of supplementary box 2 has a plurality of second trachea 12.
The connecting part of the machine body 1 and the auxiliary box body 2 is provided with a sealing strip 18, the isolation plate 17 penetrates through the sealing strip 18 in a sliding mode, the lifting mechanism comprises a first motor 14 and a threaded rod 15, the driving end of the first motor 14 is fixedly connected with the threaded rod 15, the upper end of the isolation plate 17 is connected with a U-shaped shaft 16, and the threaded rod 15 penetrates through the U-shaped shaft 16 in a threaded mode. When the machine body 1 and the auxiliary box body 2 need to be separated and sealed, the first motor 14 drives the threaded rod 15 to rotate through the driving end, and along with the rotation of the threaded rod 15, the U-shaped shaft 16 limited by the isolation plate 17 in angle moves up and down, so that the isolation plate 17 is driven to move through the U-shaped shaft 16, and the isolation plate 17 can separate the machine body 1 and the auxiliary box body 2 into two spaces.
The rotating wheel 7 is rotatably installed on the base 5, the rotating wheel 7 is in contact with the rotating disc 6, the edge of the rotating wheel is abutted against the rotating disc, the second motor 20 is installed at the bottom of the base 5, and the driving end of the second motor 20 is fixedly connected with one side of the rotating wheel 7. When the surface of the bipolar plate is coated, in order to enable the reactant to be fully contacted with the surface of the bipolar plate, the second motor 20 drives the rotating wheel 7 to rotate through the driving end, the rotating wheel 7 is contacted with the edge of the rotating disc 6, and the rotating disc 6 is driven to rotate through the rotating wheel 7 under the action of friction force, so that the surface of the metal bipolar plate can be better coated along with the rotation of the placing frame 8.
The placing frame 8 comprises a fan-shaped frame 29, a plurality of inserting grooves are formed in the fan-shaped frame 29, inserting strips 31 are inserted into the inserting grooves, a plurality of transverse shafts 30 are fixedly connected to the inserting strips 31, and the metal bipolar plates are sequentially hung on the transverse shafts 30. Hang the metal sheet in proper order at cross axle 30 through the anchor clamps of peripheral hardware, install a plurality of racks 8 on support column 9, every rack 8 all includes a plurality of cross axles 30 to can hang a plurality of metal bipolar plate.
The bottom of base 5 symmetry fixed mounting has draw runner 19, and two draw runners 19 are respectively with first slide rail 3 sliding connection. The bottom of the base 5 is provided with the sliding strip 19, when the base 5 slides on the first sliding rail 3 and spans from the first sliding rail 3 to the second sliding rail 4, the sliding strip 19 can ensure a better supporting effect, so that the second sliding rail 4 can be smoothly moved from the first sliding rail 3, the whole base 5 is moved into the auxiliary box body 2 from the machine body 1, and then gas in the machine body 1 can be better replaced.
A connecting plate 21 is fixedly connected between the two sliding strips 19, a plurality of rollers 22 are rotatably connected on the two connecting plates 21 through rotating shafts, the rollers 22 are abutted against the first sliding rail 3, and a driving mechanism is connected with the rollers 22. The driving mechanism is started, and the driving mechanism drives each roller 22 to rotate, so that the rollers 22 drive the base 5 to move back and forth on the first slide rail 3.
Actuating mechanism includes two intermeshing's gear 24, gear 24 rotates and installs the bottom at base 5, first belt 23 has all been cup jointed to one side of two gear 24, each first belt 23 cup joints with the pivot of two gyro wheel 22 one sides of one side, the opposite side fixedly connected with belt axle 28 of one of them gear 24, still fixed mounting has third motor 25 in the bottom of base 5, the drive end fixedly connected with drive shaft 26 of third motor 25, cup joint second belt 27 between drive shaft 26 and the belt axle 28. Then when starting actuating mechanism, third motor 25 drives drive shaft 26 through the drive end and rotates, and drive shaft 26 drives belt shaft 28 through gear 24 and rotates, and when a belt shaft 28 rotated, another engaged belt shaft 28 would rotate, can drive corresponding first belt 23 and rotate when two belt shafts 28 rotated to first belt 23 drives the pivot rotation that cup joints, then rotates and drives gyro wheel 22 and rotate, makes the removal effect of base 5 on first slide rail 3 then.
Referring to fig. 1-4, a method for preparing an anticorrosive coating on the surface of a fuel cell metal bipolar plate comprises the following steps:
s1: soaking the metal bipolar plate to be plated with the anticorrosive coating in ultrasonic cleaning equipment, ultrasonically cleaning the surface of the metal bipolar plate, and drying the surface of the metal bipolar plate in a drying box at the drying temperature of 90 ℃;
s2: the edge of the dried metal bipolar plate is clamped by a clamp, the metal bipolar plate is sequentially hung on a transverse shaft 30 by the clamp, a closed cabinet door of a machine body 1 is firstly vacuumized in the machine body 1 through one first air pipe 11, then a heating pipe 10 is electrified to heat the interior of the machine body 1, the interior of the machine body 1 is kept at 200-300 ℃, then argon gas is introduced into the machine body 1 through the other first air pipe 11, internal components are started, ion sputtering is carried out on the surface of the metal bipolar plate, in order to enable sputtering to be more uniform, a second motor 20 drives a rotating wheel 7 to rotate through a driving end, the rotating wheel 7 is in contact with a rotating disc 6, so that a placing frame 8 is driven to rotate along with the rotation of the rotating disc 6, the hung metal bipolar plate slowly rotates for 20-35min, and the argon gas is continuously introduced until a self-healing deposition layer is completed;
s3: the auxiliary box body 2 on one side is vacuumized through one of the second air pipes 12, the lifting mechanism is started, the first motor 14 drives the fixed threaded rod 15 to rotate through the driving end, the U-shaped shaft 16 drives the partition board 17 to move up and down along with the rotation of the threaded rod 15, so that the partition board 17 moves up and down, the machine body 1 is communicated with the auxiliary box body 2, the driving mechanism is started again, the third motor 25 drives the driving shaft 26 to rotate through driving, the driving shaft 26 drives the belt shaft 28 to rotate through the second belt 27, the belt shaft 28 drives one of the gears 24 to rotate, the two meshed gears 24 rotate, the gears 24 drive the corresponding rollers 22 to rotate through the first belt 23, the base 5 moves from the first slide rail 3 into the second slide rail 4 along with the rotation of the rollers 22, and the lifting mechanism is started again to place the partition board 17 down to separate the space between the machine body 1 and the auxiliary box body 2;
s4: introducing helium gas into the auxiliary box body 2 through the other second gas pipe 12 to deposit a super-corrosion-resistant layer, simultaneously introducing argon gas and oxygen gas into the auxiliary box body 2 for 30-60min, then closing the oxygen gas, replacing and introducing nitrogen gas for 30-60min, and finally closing the nitrogen gas and introducing only argon gas for 30-60min, wherein the tungsten alloy target material is always in an open state and is set to be 50-120A;
s5: the metal bipolar plate is coated in one auxiliary box body 2, the machine body 1 is in an idle state, the base 5 in the other auxiliary box body 2 can be moved into the machine body 1 to repeat the operations of the steps S1-S4, and the metal bipolar plate can be coated at least at the same time in the manufacturing process, so that double-line work is realized, and the working efficiency is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and amendments can be made without departing from the principle of the present invention, and these modifications and amendments should also be considered as the protection scope of the present invention.
Claims (8)
1. The preparation device of the surface anticorrosive coating of the metal bipolar plate of the fuel cell comprises a machine body (1) and is characterized in that auxiliary box bodies (2) are symmetrically arranged on two sides of the machine body (1), the machine body (1) is communicated with the two auxiliary box bodies (2), a first sliding rail (3) is arranged in the machine body (1), a second sliding rail (4) is arranged in the auxiliary box bodies (2), reaction mechanisms are arranged in the two auxiliary box bodies (2), each reaction mechanism comprises a base (5), the bases (5) are slidably mounted on the first sliding rail (3) and the second sliding rail (4), a rotary table (6) is rotatably connected onto the bases (5), supporting columns (9) are fixedly mounted on the rotary table (6), a plurality of placing frames (8) are mounted on the supporting columns (9), and the placing frames (8) are used for hanging the metal bipolar plate of the cell;
the bottom of the base (5) is provided with a driving mechanism, the base (5) moves on the first sliding rail (3) through the driving mechanism, the inner wall of the auxiliary box body (2) is provided with a sliding groove (13), the sliding groove (13) is arranged at one end close to the machine body (1), the sliding groove (13) is inserted with a separation plate (17) in a sliding manner, the auxiliary box body (2) is provided with a lifting mechanism, and the separation plate (17) moves on the sliding groove (13) through the lifting mechanism;
be provided with a plurality of heating pipes (10) on one side inner wall of organism (1), heating pipe (10) are used for heating organism (1) inside, the one end erection joint of organism (1) has a plurality of first trachea (11), one side erection joint of supplementary box (2) has a plurality of second trachea (12).
2. The device for preparing the surface anticorrosive coating of the metal bipolar plate of the fuel cell according to claim 1, wherein a sealing strip (18) is arranged at the joint of the machine body (1) and the auxiliary box body (2), the isolation plate (17) slides through the sealing strip (18), the lifting mechanism comprises a first motor (14) and a threaded rod (15), the driving end of the first motor (14) is fixedly connected with the threaded rod (15), the upper end of the isolation plate (17) is connected with a U-shaped shaft (16), and the threaded rod (15) is threaded through the U-shaped shaft (16).
3. The device for preparing the surface anticorrosive coating of the metal bipolar plate of the fuel cell according to claim 1, wherein a rotating wheel (7) is rotatably mounted on the base (5), the rotating wheel (7) is in contact with the rotating disk (6) and has an edge against the rotating disk, a second motor (20) is mounted at the bottom of the base (5), and a driving end of the second motor (20) is fixedly connected with one side of the rotating wheel (7).
4. The device for preparing the surface anticorrosive coating of the metal bipolar plate of the fuel cell according to claim 1, wherein the placing frame (8) comprises a fan-shaped frame (29), a plurality of slots are formed in the fan-shaped frame (29), inserting strips (31) are inserted in the slots, a plurality of transverse shafts (30) are fixedly connected to the inserting strips (31), and the metal bipolar plate is sequentially hung on the transverse shafts (30).
5. The device for preparing the surface anticorrosive coating of the metal bipolar plate of the fuel cell according to claim 1, wherein the bottom of the base (5) is symmetrically and fixedly provided with sliding strips (19), and the two sliding strips (19) are respectively connected with the first sliding rail (3) in a sliding manner.
6. The device for preparing the surface anticorrosive coating of the metal bipolar plate of the fuel cell according to claim 5, wherein a connecting plate (21) is fixedly connected between the two sliding bars (19), a plurality of rollers (22) are rotatably connected to the two connecting plates (21) through rotating shafts, the rollers (22) are abutted against the first sliding rail (3), and the driving mechanism is connected with the rollers (22).
7. The device for preparing the surface anticorrosive coating of the metal bipolar plate of the fuel cell according to claim 6, wherein the driving mechanism comprises two gears (24) engaged with each other, the gears (24) are rotatably installed at the bottom of the base (5), a first belt (23) is sleeved on one side of each of the two gears (24), each first belt (23) is sleeved on a rotating shaft on one side of each of the two rollers (22), the other side of one of the gears (24) is fixedly connected with a belt shaft (28), a third motor (25) is further fixedly installed at the bottom of the base (5), a driving end of the third motor (25) is fixedly connected with a driving shaft (26), and a second belt (27) is sleeved between the driving shaft (26) and the belt shaft (28).
8. The method for preparing the surface anticorrosive coating of the metal bipolar plate of the fuel cell according to any one of claims 1 to 7, characterized by comprising the following steps:
s1: soaking the metal bipolar plate to be plated with the anticorrosive coating in ultrasonic cleaning equipment, ultrasonically cleaning the surface of the metal bipolar plate, and drying the surface of the metal bipolar plate in a drying box at the drying temperature of 90 ℃;
s2: the edges of the dried metal bipolar plates are clamped by a clamp, the metal bipolar plates are sequentially hung on a transverse shaft (30) by the clamp, a closed cabinet door of the machine body (1) is firstly vacuumized in the machine body (1) through one of the first air pipes (11), then a heating pipe (10) is electrified to heat the interior of the machine body (1), the interior of the machine body (1) is kept at 200-300 ℃, then argon gas is introduced into the machine body (1) through the other first air pipe (11), internal parts are started, ion sputtering is carried out on the surface of the metal bipolar plates, in order to enable sputtering to be more uniform, a second motor (20) drives a rotating wheel (7) to rotate through a driving end, the rotating wheel (7) is in contact with a rotating disc (6), so that a placing frame (8) can be driven to rotate along with the rotation of the rotating disc (6), the hung metal bipolar plates can slowly rotate, the deposition layer lasts for 20-35min, and the argon gas is continuously introduced until self-healing is completed;
s3: the auxiliary box body (2) on one side is vacuumized through one of the second air pipes (12), a lifting mechanism is started, a first motor (14) rotates through a driving end fixing threaded rod (15), along with the rotation of the threaded rod (15), a U-shaped shaft (16) drives a partition plate (17) to move up and down, so that the partition plate (17) moves upwards, the machine body (1) and the auxiliary box body (2) are communicated, a driving mechanism is started again, a third motor (25) drives a driving shaft (26) to rotate, the driving shaft (26) drives a belt shaft (28) to rotate through a second belt (27), the belt shaft (28) drives one gear (24) to rotate, two meshed gears (24) rotate, the gear (24) drives a corresponding roller (22) to rotate through a first belt (23), along with the rotation of the roller (22), a base (5) moves from the first sliding rail (3) to the second sliding rail (4), and the lifting mechanism is started again to separate the machine body (17) from the space of the auxiliary box body (1) and the space of the auxiliary box body (2);
s4: introducing helium into the auxiliary box body (2) through another second air pipe (12) to deposit a super-corrosion-resistant layer, simultaneously introducing argon and oxygen into the auxiliary box body (2) for 30-60min, then closing the oxygen, replacing and introducing nitrogen for 30-60min, and finally closing the nitrogen and introducing only argon for 30-60min, wherein the tungsten alloy target is always in an open state and is set to be 50-120A;
s5: the metal bipolar plate is coated in one auxiliary box body (2), the machine body (1) is in an idle state, and the base (5) in the other auxiliary box body (2) can be moved into the machine body (1) to repeat the operations of the steps S1-S4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211034564.8A CN115275247B (en) | 2022-08-26 | 2022-08-26 | Preparation device and method for anticorrosive coating on surface of metal bipolar plate of fuel cell |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302094A (en) * | 2017-06-15 | 2017-10-27 | 常州翊迈新材料科技有限公司 | Superconductive super-corrosion-resistant functional coating of fuel cell metal bipolar plate and preparation method thereof |
| CN108666593A (en) * | 2017-03-28 | 2018-10-16 | 北京亿华通科技股份有限公司 | The production method of fuel battery double plates |
| CN108914060A (en) * | 2018-07-10 | 2018-11-30 | 深圳森丰真空镀膜有限公司 | A kind of preparation method of fuel battery double plates surface protection coating |
| CN215586975U (en) * | 2021-09-11 | 2022-01-21 | 禾田电子(深圳)有限公司 | Processing equipment for conductive anticorrosive coating of stainless steel bipolar plate |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666593A (en) * | 2017-03-28 | 2018-10-16 | 北京亿华通科技股份有限公司 | The production method of fuel battery double plates |
| CN107302094A (en) * | 2017-06-15 | 2017-10-27 | 常州翊迈新材料科技有限公司 | Superconductive super-corrosion-resistant functional coating of fuel cell metal bipolar plate and preparation method thereof |
| CN108914060A (en) * | 2018-07-10 | 2018-11-30 | 深圳森丰真空镀膜有限公司 | A kind of preparation method of fuel battery double plates surface protection coating |
| CN215586975U (en) * | 2021-09-11 | 2022-01-21 | 禾田电子(深圳)有限公司 | Processing equipment for conductive anticorrosive coating of stainless steel bipolar plate |
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