CN113865357B - Production jig for artificial graphite film coiled material and process for producing artificial graphite film coiled material by using production jig - Google Patents
Production jig for artificial graphite film coiled material and process for producing artificial graphite film coiled material by using production jig Download PDFInfo
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- CN113865357B CN113865357B CN202111316744.0A CN202111316744A CN113865357B CN 113865357 B CN113865357 B CN 113865357B CN 202111316744 A CN202111316744 A CN 202111316744A CN 113865357 B CN113865357 B CN 113865357B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
- F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
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Abstract
The invention discloses a production jig for an artificial graphite film coiled material, which consists of a first cylinder and a second cylinder, wherein an inner cavity enclosed by the first cylinder and the second cylinder forms a containing cavity; the end faces of the first cylinder and the second cylinder are respectively provided with a bottom plate with a limit nut, the first cylinder, the bottom plate and the second cylinder are respectively provided with a ventilation round hole, the first cylinder is provided with a limit tip, and the second cylinder is provided with a limit notch. The invention also discloses a process for producing the artificial graphite film coiled material by using the jig, which comprises the following steps of 1) winding a polyimide film in a containing cavity; cutting a rectangular hole in the coiled material and placing the rectangular hole in the limit pin; 2) Feeding the jig into a carbonization furnace for treatment to obtain a carbon film coiled material; 3) The coiled material extends to the outer ring of the jig through the limiting notch, and then is sent into a graphitization furnace for treatment to obtain a graphite film coiled material; 4) Uncoiling and receiving materials; 5) And (5) calendaring. The accommodating cavity of the production jig can be fully utilized, and the apparent obvious defect can be greatly reduced by using the accommodating cavity to fire the artificial graphite film in combination with the auxiliary structure.
Description
Technical Field
The invention belongs to the technical field of graphite film preparation, and particularly relates to a production jig of an artificial graphite film coiled material and a process for producing the artificial graphite film coiled material by using the production jig.
Background
The high-heat-conductivity artificial graphite film has excellent heat conduction and electric conduction performance, is commonly used for heat dissipation parts of semiconductor elements or other heating parts loaded in various electronic equipment such as computers, mobile phones and the like, and has very wide application prospect in heat management in the fields of microelectronic packaging and integration. In the preparation process of the high-heat-conductivity artificial graphite film, the polyimide film is required to be put into a production jig for carbonization and graphitization. At present, two manufacturing methods of high-heat-conductivity artificial graphite films mainly exist, and one manufacturing method is that a polyimide film sheet is clamped between graphite papers and sequentially stacked in a sintering tool to be carbonized and graphitized for firing. The manufacturing mode has low space utilization rate and greatly influences the productivity. In addition, polyimide film sheets at different positions are stressed with larger difference, so that the foaming thickness of the graphite film is uneven, and the product performance is affected. Another is a manufacturing method of high heat conduction artificial graphite film coiled material, which is to divide the polyimide film into polyimide coiled materials with certain width and length, then wind the polyimide coiled materials on a graphite cylinder of a production jig for carbonization graphitization firing. Because the manufacturing method overcomes the defect of sheet firing, manufacturers have gradually changed to manufacturing methods of high-heat-conductivity artificial graphite film coiled materials. However, from the assembly mode of the polyimide coiled material in the production jig at present, certain defects still exist. The polyimide coiled material is carbonized, graphitized and expanded in the accommodating cavity of the production jig, is extremely easy to be limited by the volume of the accommodating cavity to generate a folding phenomenon, and causes the problems of uneven appearance of the high-heat-conductivity artificial graphite film and the like. If the length of the polyimide coiled material is reduced, the problems can be solved, but the space utilization rate is insufficient, and the production capacity is reduced. Therefore, it is necessary to design a production jig which can fully utilize the volume of the accommodating cavity and simultaneously burn the high-heat-conductivity artificial graphite film without apparent obvious defects.
Disclosure of Invention
Aiming at the defects and the problems in the prior art, the invention aims to provide a production jig for an artificial graphite film coiled material.
The invention is realized by the following technical scheme:
the invention provides a production jig for an artificial graphite film coiled material, which consists of a first cylinder and a second cylinder, wherein the second cylinder is sleeved on the periphery of the first cylinder, and an inner cavity enclosed by the first cylinder and the second cylinder forms an artificial graphite film coiled material accommodating cavity;
a bottom plate with a limit nut I is arranged on one end face of the first cylinder, a plurality of uniformly distributed ventilation round holes I are formed in the radial direction of the first cylinder body, a plurality of uniformly distributed ventilation round holes II are formed in the bottom plate of the first cylinder, and a row of uniformly distributed outwards-protruding limit pins are arranged in the radial direction of the first cylinder body;
a bottom plate with a limit nut II is arranged on one end face of the second cylinder, a plurality of uniformly distributed ventilation round holes III are formed in the radial direction of the second cylinder body, and limit gaps are formed in the radial direction of the second cylinder body;
still include with stop nut I, stop nut II homogeneous phase matched's stop bolt, through stop bolt's both ends respectively with stop nut I, stop nut II combine together, and then with first drum and second drum connection, restriction first drum and second drum's transverse movement distance.
Further, the ventilation round holes I and III are arranged in 4-8 rows, and the diameters of the ventilation round holes I and III are 2-5mm.
Further, the number of the ventilation round holes II is 4-8, and the diameter of the ventilation round holes II is 2-10mm.
Further, the number of the limit pins is 2-4, and the length of the limit pins is 5-10mm.
Further, the width of the limit notch is 2-5mm.
The invention also provides a process for producing the artificial graphite film coiled material by using the graphite film coiled material jig, which comprises the following steps:
1) And (3) coiled material assembly: winding a polyimide film in a containing cavity surrounded by a first cylinder and a second cylinder, wherein the void ratio is 40% -90%; one end of the polyimide film coiled material, which is close to the first cylinder, is cut into a rectangular hole and is placed in the limit pin of the first cylinder.
2) Carbonizing: and (3) feeding the jig for winding the polyimide film in the step (1) into a carbonization furnace for carbonization treatment. Carbonizing under the condition of the vacuum degree of the furnace chamber of 1-50Pa according to the following program: raising the temperature to 480-500 ℃ at a heating rate of 1-6 ℃/min, and preserving the heat for 0.5-1 h; raising the temperature to 600-700 ℃ at a heating rate of 0.5-2 ℃/min, and preserving the temperature for 0.5-1 h; raising the temperature to 1000-1400 ℃ at a heating rate of 0.5-4 ℃/min, and preserving the heat for 0.5-1 h. Cooling to room temperature to obtain the carbon film coiled material.
3) Graphitizing: extending one end of the carbon film coiled material prepared in the step 2) close to the second cylinder to the outer ring of the jig through the second cylinder limiting notch; feeding the jig for winding the carbon film into a graphitizing furnace for graphitizing treatment; graphitization is carried out under the protection of flowing argon gas according to the following procedure: rising the temperature rising rate of 20 ℃/min to 1000 ℃; raising the temperature rising rate of 4-6 ℃/min to 1800-2000 ℃, and preserving heat for 0.5-1 h; raising the temperature to 2700-2850 ℃ at the heating rate of 3-5 ℃/min, and preserving the heat for 0.5-1 h. Cooling to room temperature to obtain the graphite film coiled material.
4) Uncoiling and receiving materials.
5) And (5) calendaring.
Compared with the prior art, the invention has the beneficial effects that:
(1) The accommodating cavity of the production jig is surrounded by the first cylinder and the second cylinder, so that the accommodating cavity can be fully utilized, and meanwhile, the apparent obvious defects can be greatly reduced by using the accommodating cavity to fire the artificial graphite film through auxiliary structures such as the limiting pins, the ventilation round holes, the limiting gaps and the like.
(2) According to the invention, the first cylinder limiting pin is used for limiting the transverse movement caused by expansion or contraction of the inner ring end of the coiled material;
the expansion of the outer ring end of the coiled material is given enough transverse movement space through the second cylinder limiting notch; the arrangement of the ventilation round holes is beneficial to the decomposition and exhaust of polyimide coiled materials.
(3) The artificial graphite film coiled material prepared by adopting the production jig has the advantages of extremely simple process, easy operation and low cost, and is suitable for industrial mass production.
Drawings
FIG. 1 is a cross-sectional view of an artificial graphite film coil production fixture of the present invention.
Fig. 2 is a top view of the artificial graphite film coil production jig of the present invention.
Fig. 3 is a schematic front view of a first cylinder of the artificial graphite film coil production jig of the present invention.
Fig. 4 is a schematic top view of a first cylinder of the artificial graphite film coil production tool of the present invention.
Fig. 5 is a schematic front view of a second cylinder of the artificial graphite film coil production jig of the present invention.
Fig. 6 is a schematic top view of a second cylinder of the artificial graphite film coil production tool of the present invention.
Illustration of: 100-a first cylinder; 101-limiting nuts I; 102-ventilation round hole I; 103-ventilation round hole II; 104-limiting pins; 105-limit bolts; 200-a second cylinder; 201-limit nut II; 202-ventilation round hole III; 203-limit notch.
In the description of the present invention, the orientation or positional relationship indicated by the terms "radial", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected; may be a mechanical connection, an electrical connection; can be directly connected with each other or indirectly connected with each other through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in detail by those skilled in the art.
Detailed Description
The invention will be further described with reference to the accompanying drawings, which are simplified schematic illustrations of the basic structure of the invention, which are merely illustrative, and which therefore show only the structures that are relevant to the invention.
As shown in fig. 1-6, fig. 1 is a cross-sectional view of an artificial graphite film coil production fixture of the present invention. Fig. 2 is a top view of the artificial graphite film coil production jig of the present invention. Fig. 3 is a schematic front view of a first cylinder of the artificial graphite film coil production jig of the present invention. Fig. 4 is a schematic top view of a first cylinder of the artificial graphite film coil production tool of the present invention. Fig. 5 is a schematic front view of a second cylinder of the artificial graphite film coil production jig of the present invention. Fig. 6 is a schematic top view of a second cylinder of the artificial graphite film coil production tool of the present invention.
A production jig for artificial graphite film coiled materials comprises a first cylinder 100 and a second cylinder 200, wherein the second cylinder 200 is sleeved on the periphery of the first cylinder 100, and an inner cavity enclosed by the first cylinder 100 and the second cylinder 200 forms an artificial graphite film coiled material accommodating cavity.
A bottom plate with a limit nut I101 is arranged on one end face of the first cylinder 100, 4-8 rows of uniformly distributed ventilation round holes I102 with diameters of 2-5mm are arranged in the radial direction of the cylinder body of the first cylinder 100, 4-8 uniformly distributed ventilation round holes II 103 with diameters of 2-10mm are arranged on the bottom plate of the first cylinder 100, and a row of 2-4 outwardly protruding and uniformly distributed limit pins 104 with lengths of 5-10mm are arranged in the radial direction of the cylinder body of the first cylinder 100.
A bottom plate with a limit nut II 201 is arranged on one end face of the second cylinder 200, 4-8 rows of ventilation round holes III202 with diameters of 2-5mm and uniformly distributed are arranged in the radial direction of the cylinder body of the second cylinder 200, and limit notches 203 with widths of 2-5mm are arranged in the radial direction of the second cylinder 200.
In a specific implementation, when the second cylinder 200 is sleeved on the periphery of the first cylinder 100, the position of the limit nut I101 corresponds to the position of the limit nut II 201, and the two form a through fastening hole.
The invention is also provided with the limit bolt 105 which is matched with the limit nut I101 and the limit nut II 201, and the two ends of the limit bolt 105 are respectively combined with the limit nut I101 and the limit nut II 201, namely, the limit bolt 105 is inserted into the fastening hole and screwed and fixed, so that the bottom plates of the first cylinder 100 and the second cylinder 200 are fixedly connected, the first cylinder 100 and the second cylinder 200 are fastened and connected, and the transverse moving distance of the first cylinder 100 and the second cylinder 200 is limited.
A process for producing an artificial graphite film coiled material by using the production jig comprises the following steps:
1) And (3) coiled material assembly: winding the polyimide film into a containing cavity enclosed by the first cylinder 100 and the second cylinder 200, wherein the void ratio is 50%; the polyimide film web is cut into a rectangular hole proximate one end of the first cylinder 100 and positioned within the stop pin 104 of the first cylinder 100.
2) Carbonizing: and (3) feeding the jig for winding the polyimide film in the step (1) into a carbonization furnace for carbonization treatment. Carbonizing under the condition of the vacuum degree of the furnace chamber of 1-50Pa according to the following program: raising the temperature to 500 ℃ at a heating rate of 5 ℃/min, and preserving the temperature for 0.5h; raising the temperature to 650 ℃ at a heating rate of 1 ℃/min, and preserving the temperature for 1h; raising the temperature to 1200 ℃ at a heating rate of 3 ℃/min, and preserving the temperature for 0.5h. Cooling to room temperature to obtain the carbon film coiled material.
3) Graphitizing: and (3) stretching one end, close to the second cylinder 200, of the carbon film coiled material prepared in the step (2) to the outer ring of the jig through a limiting notch of the second cylinder 200. And (3) feeding the jig for winding the carbon film into a graphitization furnace for graphitization treatment. Graphitization is carried out under the protection of flowing argon gas according to the following procedure: rising the temperature rising rate of 20 ℃/min to 1000 ℃; raising the temperature rising rate of 6 ℃/min to 2000 ℃, and preserving heat for 0.5h; the temperature rising rate of 3 ℃/min is increased to 2800 ℃, and the temperature is kept for 0.5h. Cooling to room temperature to obtain the graphite film coiled material.
4) Uncoiling and receiving materials.
5) And (5) calendaring.
The production jig of the artificial graphite film and the process for producing the artificial graphite film coiled material by using the production jig of the artificial graphite film have the production yield of 95 percent and no apparent obvious defects.
The foregoing description of the preferred embodiments of the present invention has been presented only in terms of those specific and detailed descriptions, and is not, therefore, to be construed as limiting the scope of the invention. It should be noted that modifications, improvements and substitutions can be made by those skilled in the art without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. The utility model provides a production smelting tool of artificial graphite membrane coiled material which characterized in that: the production jig consists of a first cylinder (100) and a second cylinder (200), wherein the second cylinder (200) is sleeved on the periphery of the first cylinder (100), and an inner cavity enclosed by the first cylinder (100) and the second cylinder (200) forms an artificial graphite film coiled material accommodating cavity;
a bottom plate with a limit nut I (101) is arranged on one end face of the first cylinder (100), a plurality of uniformly distributed ventilation round holes I (102) are formed in the radial direction of the cylinder body of the first cylinder (100), a plurality of uniformly distributed ventilation round holes II (103) are formed in the bottom plate of the first cylinder (100), and a row of uniformly distributed limit pins (104) protruding outwards are arranged in the radial direction of the cylinder body of the first cylinder (100);
a bottom plate with a limit nut II (201) is arranged on one end surface of the second cylinder (200), a plurality of ventilation round holes III (202) which are uniformly distributed are arranged in the radial direction of the cylinder body of the second cylinder (200), and limit notches (203) are arranged in the radial direction of the second cylinder (200);
the device further comprises a limit bolt (105) which is matched with the limit nut I (101) and the limit nut II (201), wherein two ends of the limit bolt (105) are respectively combined with the limit nut I (101) and the limit nut II (201), so that the first cylinder (100) and the second cylinder (200) are connected;
the ventilation round holes I (102) and the ventilation round holes III (202) are arranged in 4-8 rows, and the diameters of the ventilation round holes I and the ventilation round holes III are 2-5mm;
the number of the ventilation round holes II (103) is 4-8, and the diameter of the ventilation round holes II is 2-10mm.
2. The production jig of an artificial graphite film coiled material according to claim 1, wherein: the number of the limiting pins (104) is 2-4, and the length of the limiting pins is 5-10mm.
3. The production jig of an artificial graphite film coiled material according to claim 1, wherein: the width of the limiting notch (203) is 2-5mm.
4. A process for producing an artificial graphite film coiled material by using the production jig according to any one of claims 1 to 3, comprising the following steps:
1) And (3) coiled material assembly: winding a polyimide film into a containing cavity enclosed by a first cylinder (100) and a second cylinder (200), wherein the void ratio is 40% -90%; a rectangular hole is cut at one end of the polyimide film coiled material close to the first cylinder (100) and is arranged in a limit pin (104) of the first cylinder (100);
2) Carbonizing: feeding the jig for winding the polyimide film in the step 1) into a carbonization furnace for carbonization treatment, controlling the temperature under the condition of the vacuum degree of a furnace chamber of 1-50Pa for carbonization, and cooling to room temperature to obtain a carbon film coiled material;
3) Graphitizing: one end, close to the second cylinder (200), of the carbon film coiled material prepared in the step 2) extends to the outer ring of the jig through a limiting notch (203) of the second cylinder (200), the jig for coiling the carbon film is sent into a graphitizing furnace for graphitizing treatment, graphitizing is carried out under the protection of flowing argon gas by controlling the temperature, and the graphite film coiled material is obtained after cooling to the room temperature;
4) Uncoiling and receiving materials;
5) And (5) calendaring.
5. The process for producing an artificial graphite film roll according to claim 4, wherein the step 2) is performed by controlling the temperature according to the following procedure: raising the temperature to 480-500 ℃ at a heating rate of 1-6 ℃/min, and preserving heat for 0.5-1 h; raising the temperature to 600-700 ℃ at a heating rate of 0.5-2 ℃/min, and preserving the temperature for 0.5-1 h; raising the temperature to 1000-1400 ℃ at a heating rate of 0.5-4 ℃/min, and preserving the temperature for 0.5-1 h.
6. The process for producing an artificial graphite film roll according to claim 4, wherein the step 3) is performed by controlling the temperature according to the following procedure: rising the temperature rising rate of 20 ℃/min to 1000 ℃; raising the temperature rising rate of 4-6 ℃/min to 1800-2000 ℃, and preserving heat for 0.5-1 h; raising the temperature rising rate to 2700-2850 ℃ at 3-5 ℃/min, and preserving the heat for 0.5-1 h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111316744.0A CN113865357B (en) | 2021-11-08 | 2021-11-08 | Production jig for artificial graphite film coiled material and process for producing artificial graphite film coiled material by using production jig |
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| CN202111316744.0A CN113865357B (en) | 2021-11-08 | 2021-11-08 | Production jig for artificial graphite film coiled material and process for producing artificial graphite film coiled material by using production jig |
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| CN113865357B true CN113865357B (en) | 2024-04-09 |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001071689A (en) * | 1999-07-06 | 2001-03-21 | Seed Rubber Kogyo Kk | Tape cartridge for tarnsferring coating film and coating film transfer tool |
| JP2009132602A (en) * | 2007-11-06 | 2009-06-18 | Kaneka Corp | Method for production of graphite film |
| WO2010029761A1 (en) * | 2008-09-11 | 2010-03-18 | 株式会社カネカ | Method for manufacturing carbonaceous film and graphite film obtained thereby |
| JP2010131903A (en) * | 2008-12-05 | 2010-06-17 | Nippon Shokubai Co Ltd | Manufacturing process of acrylic film |
| WO2011024849A1 (en) * | 2009-08-25 | 2011-03-03 | 旭化成イーマテリアルズ株式会社 | Roll of microporous film and process for production thereof |
| KR101554912B1 (en) * | 2014-08-13 | 2015-09-22 | 에스케이씨 주식회사 | Method for preparing graphite and furnace therefor |
| CN105366669A (en) * | 2015-11-25 | 2016-03-02 | 上海弘枫实业有限公司 | Graphite membrane coiled material production jig and graphite membrane coiled material production method |
| KR20160041438A (en) * | 2014-10-07 | 2016-04-18 | 에스케이씨 주식회사 | Container for preparing graphite sheet |
| CN108751185A (en) * | 2018-08-21 | 2018-11-06 | 北京中石伟业科技股份有限公司 | A kind of conductive graphite film coiled material smelting tool and carbide furnace |
| TWI646297B (en) * | 2018-01-24 | 2019-01-01 | 鴻成國際科技股份有限公司 | Heater support device |
| TW201912688A (en) * | 2017-09-12 | 2019-04-01 | 達邁科技股份有限公司 | Method of making carbonized film using a polyimide film as a precursor on which a carbonizing heat treatment is performed |
| JP2021067409A (en) * | 2019-10-24 | 2021-04-30 | 柴田 勝美 | Heating treatment device |
| CN216205345U (en) * | 2021-11-08 | 2022-04-05 | 江西昌大高新能源材料技术有限公司 | Production smelting tool for artificial graphite film coiled material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI638772B (en) * | 2016-11-29 | 2018-10-21 | 達邁科技股份有限公司 | Polyimide film for calcination graphitization and method for producing graphite film |
-
2021
- 2021-11-08 CN CN202111316744.0A patent/CN113865357B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001071689A (en) * | 1999-07-06 | 2001-03-21 | Seed Rubber Kogyo Kk | Tape cartridge for tarnsferring coating film and coating film transfer tool |
| JP2009132602A (en) * | 2007-11-06 | 2009-06-18 | Kaneka Corp | Method for production of graphite film |
| WO2010029761A1 (en) * | 2008-09-11 | 2010-03-18 | 株式会社カネカ | Method for manufacturing carbonaceous film and graphite film obtained thereby |
| JP2010131903A (en) * | 2008-12-05 | 2010-06-17 | Nippon Shokubai Co Ltd | Manufacturing process of acrylic film |
| WO2011024849A1 (en) * | 2009-08-25 | 2011-03-03 | 旭化成イーマテリアルズ株式会社 | Roll of microporous film and process for production thereof |
| KR101554912B1 (en) * | 2014-08-13 | 2015-09-22 | 에스케이씨 주식회사 | Method for preparing graphite and furnace therefor |
| KR20160041438A (en) * | 2014-10-07 | 2016-04-18 | 에스케이씨 주식회사 | Container for preparing graphite sheet |
| CN105366669A (en) * | 2015-11-25 | 2016-03-02 | 上海弘枫实业有限公司 | Graphite membrane coiled material production jig and graphite membrane coiled material production method |
| TW201912688A (en) * | 2017-09-12 | 2019-04-01 | 達邁科技股份有限公司 | Method of making carbonized film using a polyimide film as a precursor on which a carbonizing heat treatment is performed |
| TWI646297B (en) * | 2018-01-24 | 2019-01-01 | 鴻成國際科技股份有限公司 | Heater support device |
| CN108751185A (en) * | 2018-08-21 | 2018-11-06 | 北京中石伟业科技股份有限公司 | A kind of conductive graphite film coiled material smelting tool and carbide furnace |
| JP2021067409A (en) * | 2019-10-24 | 2021-04-30 | 柴田 勝美 | Heating treatment device |
| CN216205345U (en) * | 2021-11-08 | 2022-04-05 | 江西昌大高新能源材料技术有限公司 | Production smelting tool for artificial graphite film coiled material |
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Effective date of registration: 20240207 Address after: Factory Building 5 #, Science and Technology Innovation Park, Gongqing City High tech Zone, Jiujiang City, Jiangxi Province, 2020 Applicant after: Jiangxi Minqiang New Materials Technology Co.,Ltd. Country or region after: China Address before: Room 101, Building 6, Jiahai Industrial Park, No. 2799 Tianxiang Avenue, Nanchang High tech Industrial Development Zone, Nanchang City, Jiangxi Province, 330096 Applicant before: Jiangxi Changda high tech energy material technology Co.,Ltd. Country or region before: China |
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Denomination of invention: A production tool for artificial graphite film coil and a process for producing artificial graphite film coil using it Granted publication date: 20240409 Pledgee: Bank of China Limited Gongqing Branch Pledgor: Jiangxi Minqiang New Materials Technology Co.,Ltd. Registration number: Y2024980042052 |