CN111473672A - Large-pipe-diameter ultra-thin heat pipe and preparation method thereof - Google Patents
Large-pipe-diameter ultra-thin heat pipe and preparation method thereof Download PDFInfo
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- CN111473672A CN111473672A CN202010331559.8A CN202010331559A CN111473672A CN 111473672 A CN111473672 A CN 111473672A CN 202010331559 A CN202010331559 A CN 202010331559A CN 111473672 A CN111473672 A CN 111473672A
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- heat pipe
- main body
- pipe
- diameter
- forming core
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- 238000002360 preparation method Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims 2
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
Abstract
the invention relates to the technical field of heat pipe production, and discloses a large-diameter ultrathin heat pipe which comprises a heat pipe body, wherein a forming core matched with the heat pipe body is movably arranged in the heat pipe body, a capillary forming latch is fixedly arranged on the outer surface of the forming core, a limiting plate is fixedly arranged at the bottom of the forming core, a limiting hole penetrating through the limiting plate is formed in the limiting plate, and a pipe shrinking machine sleeve corresponding to the heat pipe body is movably arranged at the bottom of the heat pipe body.
Description
Technical Field
The invention relates to the technical field of heat pipe production, in particular to a large-diameter ultrathin heat pipe and a preparation method thereof.
Background
The heat pipe technology is widely applied to the industries of aerospace, military industry and the like, and since the heat pipe technology is introduced into the radiator manufacturing industry, the design idea of the traditional radiator is changed, the single heat dissipation mode that a better heat dissipation effect is obtained by only depending on a high-air-volume motor is eliminated, the heat pipe technology is adopted, the heat radiator can obtain a satisfactory effect even if the heat radiator adopts a low-rotating-speed and low-air-volume motor, the noise problem which puzzles air cooling heat dissipation is well solved, and a new place in the heat dissipation industry is opened up and is commonly used on the heat radiator of a CPU at present.
When the existing heat pipe is manufactured, a plurality of machines are used for reducing the pipe normally, for example, a 20mm mechanical reducing pipe is used firstly, then the pipe is changed into a 15mm mechanical reducing pipe, and the pipe is reduced into a 5mm heat pipe step by step.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a large-diameter ultrathin heat pipe and a preparation method thereof, has the advantages of saving a large amount of processing time and cost and the like, and solves the problems that the existing equipment is complicated in steps, needs a plurality of machines to work, improves the production cost and brings inconvenience to users when in use.
(II) technical scheme
In order to achieve the purpose of saving a large amount of processing time and cost, the invention provides the following technical scheme: an ultra-thin heat pipe with large pipe diameter comprises a heat pipe main body, a forming core matched with the heat pipe main body is movably arranged in the heat pipe main body, the outer surface of the forming core is fixedly provided with a capillary forming latch, the bottom of the forming core is fixedly provided with a limiting plate, the limiting plate is internally provided with a limiting hole which penetrates through the limiting plate, the bottom of the heat pipe main body is movably provided with a pipe contracting machine sleeve corresponding to the heat pipe main body, the bottom of the pipe reducing machine sleeve is fixedly provided with a movable seat, the inside of the pipe reducing machine sleeve is movably provided with a limiting fixed column matched with the inner diameter of the heat pipe main body, the outer surface of the heat pipe main body is movably provided with a processing table corresponding to the heat pipe main body, the inside of the movable seat is fixedly provided with a high-speed motor in transmission connection with the pipe contracting machine sleeve, and the right side of the movable seat is fixedly provided with a cutter feeding cylinder.
Preferably, the processing table is internally provided with a limiting installation groove corresponding to the heat pipe main body, and the top of the processing table is movably provided with a hydraulic clamping seat corresponding to the heat pipe main body.
Preferably, the moving seat, the high-speed motor, the pipe reducing machine sleeve and the limiting fixing column form an automatic multi-head high-speed pipe reducing structure.
Preferably, the pipe diameter of the heat pipe main body is 6-20 mm, and the thickness of the pipe wall is 0.04-0.15 mm.
Preferably, the pipe reducing machine is sleeved with eight or more specifications, and each specification is provided with a pipe reducing die jig matched with the heat pipe main body.
preferably, the automatic multi-head high-speed pipe reducing structure is internally and fixedly provided with a PLC controller, a hydraulic telescopic seat and a hydraulic mobile pump.
The invention also provides a preparation method of the large-diameter ultrathin heat pipe, which is characterized by comprising the following steps of:
1) The heat pipe main bodies are uniformly arranged in the limiting installation groove of the processing table through an automatic feeding device, then are sent to a specified position through a pushing mechanism, and are fixed through a hydraulic clamping seat at the top of the processing table;
2) a user adjusts and sets a program of a P-L-C controller according to processing requirements, then moves a corresponding pipe reducing machine sleeve to the same straight line corresponding to the heat pipe main body through a moving seat through the P-L-C controller in the automatic multi-head high-speed pipe reducing structure, and pushes the pipe reducing machine sleeve to move forwards through a feed cylinder, so that the heat pipe main body is extruded in the heat pipe main body to be contracted;
3) under the action of the P L C controller, controlling the feed cylinder to push the pipe reducing machine sleeve to move forwards for a distance, controlling the feed cylinder to drive the pipe reducing machine sleeve to retract by the P L C controller, then moving through the moving seat control equipment to enable the next pipe reducing machine sleeve and the heat pipe main body to be processed, and circulating the step until the product reaches the specified diameter;
4) Placing the adaptive forming core in the heat pipe main body with the diameter processed in the step 3), adding copper powder to a crack formed by the heat pipe main body and the forming core, rotating the forming core to ensure that the copper powder at the crack formed by the heat pipe main body and the forming core is uniformly distributed, and then sending the heat pipe main body and the forming core into heating equipment;
5) And 4) sintering the copper powder at the crack between the heat pipe main body and the forming core in the step 4) to form a capillary, extracting the forming core to obtain the heat pipe, and then circulating the steps 1) to 5).
Preferably, the pushing mechanism in the step 1) is an electric push rod.
Preferably, the type of the forming core corresponds to the heat pipe main bodies with different diameters, and the inner diameter of the heat pipe main body is larger than the outer diameter of the forming core.
(III) advantageous effects
Compared with the prior art, the invention provides a large-diameter ultrathin heat pipe and a preparation method thereof, and the large-diameter ultrathin heat pipe has the following beneficial effects:
this ultra-thin heat pipe of big pipe diameter and preparation method, there are eight or more than eight specifications through draw quick-witted cover 7, draw mould tool with 1 looks adaptation of heat pipe main part is all seted up to every specification, simultaneously through the removal of P L C controller control feed cylinder and removal seat, can process into the appointed size of user with the tubular metal resonator, do not need extra machinery to work simultaneously, through having set up the P L C controller, can realize the accurate efficient work of equipment, the efficiency is improved, draw the mould tool with heat pipe main part looks adaptation is all seted up through the top that has set up the draw quick-witted cover, can process the product through the inside draw mould tool of draw quick-witted cover of draw, be electric putter through having set up pushing mechanism, the material loading that can be convenient for, the production efficiency is improved, the cost is solved current equipment when using, the step is loaded down with trivial details, need many draw works, the production cost is improved, many inconvenient problems have been brought for the user.
Drawings
FIG. 1 is a schematic view of a large-diameter ultra-thin heat pipe and a combination of a heat pipe main body and a forming core in a manufacturing method thereof according to the present invention;
FIG. 2 is a bottom view of a heat pipe body and a core in a large-diameter ultra-thin heat pipe and a method for manufacturing the same according to the present invention;
FIG. 3 is a schematic view of a large-diameter ultra-thin heat pipe and a method for manufacturing the same.
In the figure: the device comprises a heat pipe main body 1, a forming core 2, a limiting plate 3, a limiting hole 4, a capillary forming latch 5, a limiting fixing column 6, a pipe shrinking machine sleeve 7, a moving seat 8, a processing table 9, a high-speed motor 10 and a feed cylinder 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
referring to fig. 1-3, an ultra-thin heat pipe with a large pipe diameter comprises a heat pipe body 1, a forming core 2 adapted to the heat pipe body 1 is movably mounted inside the heat pipe body 1, a capillary forming latch 5 is fixedly mounted on the outer surface of the forming core 2, a limiting plate 3 is fixedly mounted at the bottom of the forming core 2, a limiting hole 4 penetrating through the limiting plate 3 is formed inside the limiting plate 3, a pipe contracting machine sleeve 7 corresponding to the heat pipe body 1 is movably mounted at the bottom of the heat pipe body 1, the pipe contracting machine sleeve 7 has eight or more specifications, each specification is provided with a pipe contracting mold jig adapted to the heat pipe body 1, a moving seat 8 is fixedly mounted at the bottom of the pipe contracting machine sleeve 7, a limiting fixed column 6 adapted to the inner diameter of the heat pipe body 1 is movably mounted inside the pipe contracting machine sleeve 7, a moving seat 8, a high-speed motor 10, an automatic high-speed pipe contracting structure is formed by the pipe contracting machine sleeve 7 and the limiting fixed column 6, a P L C controller, a hydraulic telescopic seat and a hydraulic moving pump are fixedly mounted inside the automatic high-speed multi-head pipe contracting machine sleeve 7, a moving seat is movably mounted on the outer surface of the heat pipe body 1, a moving cylinder 10, a moving cylinder is mounted on the moving seat, a moving cylinder is mounted on the moving cylinder, the moving seat, the moving cylinder, the moving seat is mounted.
The invention also provides a preparation method of the large-diameter ultrathin heat pipe, which is characterized by comprising the following steps of:
1) The heat pipe main body 1 is uniformly arranged in a limiting installation groove of a processing table 9 through an automatic feeding device, the heat pipe main body 1 is sent to a specified position through a pushing mechanism, the pushing mechanism is an electric push rod, and the pushing mechanism is fixed through a hydraulic clamping seat at the top of the processing table 9;
2) a user adjusts and sets a program of a P-L-C controller according to processing requirements, then moves a corresponding pipe reducing machine sleeve 7 to the same straight line corresponding to the heat pipe main body 1 through a movable seat 8 through the P-L-C controller in the automatic multi-head high-speed pipe reducing structure, and pushes the pipe reducing machine sleeve 7 to move forwards through a feed cylinder 11, so that the heat pipe main body 1 is extruded in the heat pipe main body 1 to be contracted;
3) under the action of the PLC controller, controlling the cutting cylinder 11 to push the pipe reducing machine sleeve 7 to move forward to a certain distance, controlling the cutting cylinder 11 to drive the pipe reducing machine sleeve 7 to retract by the PLC controller, then controlling equipment to move through the moving seat 8, processing the next pipe reducing machine sleeve 7 and the heat pipe main body 1, and repeating the step until the product reaches the specified diameter;
4) Placing the adaptive forming core 2 in the heat pipe main body 1 with the diameter processed in the step 3), adding copper powder to a gap formed by the heat pipe main body 1 and the forming core 2, rotating the forming core 2 to ensure that the copper powder at the gap formed by the heat pipe main body 1 and the forming core 2 is uniformly distributed, and then sending the heat pipe main body 1 and the forming core 2 into heating equipment together, wherein the type of the forming core 2 corresponds to the heat pipe main body 1 with different diameters, and the inner diameter of the heat pipe main body 1 is larger than the outer diameter of the forming core 2;
5) And 4) sintering copper powder at the crack between the heat pipe main body 1 and the forming core 2 to form a capillary, extracting the forming core 2 to obtain the heat pipe, and then circulating the steps 1) to 5).
the large-diameter ultrathin heat pipe and the preparation method thereof have the advantages that eight or more specifications are provided through the pipe contracting machine sleeve 7, each specification is provided with the pipe contracting mold jig matched with the heat pipe main body 1, the movement of the feed cylinder and the moving seat 8 is controlled through the P L C controller, the metal pipe can be processed into the size appointed by a user, meanwhile, extra machinery is not needed for working, accurate and efficient working of equipment can be achieved through the P L C controller, the efficiency is improved, the pipe contracting mold jigs matched with the heat pipe main body 1 are arranged at the top of the pipe contracting machine sleeve 7, products can be processed through the pipe contracting mold jig in the machine sleeve 7, the pushing mechanism is an electric push rod, rapid feeding can be facilitated, the production efficiency is improved, the cost is reduced, the problems that the steps are complicated when the existing equipment is used, multiple machines are needed to work, the production cost is increased, and inconvenience is brought to the user are solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a big pipe diameter ultra-thin type heat pipe, includes heat pipe main part (1), its characterized in that: the heat pipe comprises a heat pipe body (1), a forming core (2) matched with the heat pipe body (1) is movably mounted inside the heat pipe body (1), a capillary forming latch (5) is fixedly mounted on the outer surface of the forming core (2), a limiting plate (3) is fixedly mounted at the bottom of the forming core (2), a limiting hole (4) penetrating through the limiting plate (3) is formed inside the limiting plate (3), a pipe shrinking machine sleeve (7) corresponding to the heat pipe body (1) is movably mounted at the bottom of the heat pipe body (1), a moving seat (8) is fixedly mounted at the bottom of the pipe shrinking machine sleeve (7), a limiting fixing column (6) matched with the inner diameter of the heat pipe body (1) is movably mounted inside the pipe shrinking machine sleeve (7), a processing table (9) corresponding to the heat pipe body (1) is movably mounted on the outer surface of the heat pipe body (1), and a high-speed motor (10) in transmission connection with the pipe shrinking machine sleeve (7) is fixedly mounted inside ) And a feed cylinder (11) is fixedly arranged on the right side of the movable seat (8).
2. The large-diameter ultrathin heat pipe according to claim 1, wherein a limit installation groove corresponding to the heat pipe main body (1) is formed in the machining table (9), and a hydraulic clamping seat corresponding to the heat pipe main body (1) is movably installed at the top of the machining table (9).
3. The ultra-thin heat pipe with large pipe diameter according to claim 1, wherein the movable base (8), the high-speed motor (10), the pipe reducing machine sleeve (7) and the limiting fixing column (6) form an automatic multi-head high-speed pipe reducing structure.
4. The ultra-thin heat pipe with large pipe diameter according to claim 1, wherein the pipe diameter of the heat pipe main body (1) is 6-20 mm, and the thickness of the pipe wall of the heat pipe main body (1) is 0.04-0.15 mm.
5. The ultra-thin heat pipe with large pipe diameter as claimed in claim 1, wherein the pipe shrinking machine sleeve (7) has eight or more specifications, and each specification is provided with a pipe shrinking mold jig adapted to the heat pipe main body (1).
6. the large-diameter ultra-thin heat pipe of claim 3, wherein the automatic multi-head high-speed pipe-shrinking structure is fixedly provided with a PLC controller, a hydraulic expansion seat and a hydraulic mobile pump inside.
7. A preparation method of a large-diameter ultrathin heat pipe is characterized by comprising the following steps:
1) The heat pipe main body (1) is uniformly arranged in a limiting installation groove of a processing table (9) through an automatic feeding device, the heat pipe main body (1) is sent to a specified position through a pushing mechanism, and then the heat pipe main body is fixed through a hydraulic clamping seat at the top of the processing table (9);
2) a user adjusts and sets a program of a P L C controller according to processing requirements, then moves a corresponding pipe reducing machine sleeve (7) to the same straight line corresponding to the heat pipe main body (1) through a moving seat (8) through the P L C controller in the automatic multi-head high-speed pipe reducing structure, and pushes the pipe reducing machine sleeve (7) to move forwards through a cutter feeding cylinder (11), so that the heat pipe main body (1) is extruded in the heat pipe main body (1) to be contracted;
3) under the action of a P L C controller, controlling a feed cylinder (11) to push a pipe reducing machine sleeve (7) to move forward to a certain distance, controlling the feed cylinder (11) to drive the pipe reducing machine sleeve (7) to retract by the P L C controller, then controlling equipment to move through a moving seat (8), and enabling the next pipe reducing machine sleeve (7) and a heat pipe main body (1) to be processed, and circulating the step until the product reaches the specified diameter;
4) Placing the adaptive forming core (2) in the heat pipe main body (1) with the diameter processed in the step 3), adding copper powder to a crack formed by the heat pipe main body (1) and the forming core (2), rotating the forming core (2) to ensure that the copper powder at the crack formed by the heat pipe main body (1) and the forming core (2) is uniformly distributed, and then sending the heat pipe main body (1) and the forming core (2) into heating equipment;
5) And 4) sintering copper powder at the crack between the heat pipe main body (1) and the forming core (2) to form a capillary, extracting the forming core (2) to obtain the heat pipe, and then circulating the steps 1) to 5).
8. The method according to claim 7, wherein the pushing mechanism in step 1) is an electric push rod.
9. The method for manufacturing a large-diameter ultra-thin heat pipe according to claim 7, wherein the type of the forming core (2) corresponds to the heat pipe main body (1) with different diameters, and the inner diameter of the heat pipe main body (1) is larger than the outer diameter of the forming core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331559.8A CN111473672B (en) | 2020-04-24 | 2020-04-24 | Large-pipe-diameter ultrathin heat pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331559.8A CN111473672B (en) | 2020-04-24 | 2020-04-24 | Large-pipe-diameter ultrathin heat pipe and preparation method thereof |
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| Publication Number | Publication Date |
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| CN111473672A true CN111473672A (en) | 2020-07-31 |
| CN111473672B CN111473672B (en) | 2024-03-29 |
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| CN202010331559.8A Active CN111473672B (en) | 2020-04-24 | 2020-04-24 | Large-pipe-diameter ultrathin heat pipe and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10238976A (en) * | 1997-02-21 | 1998-09-11 | Fujikura Ltd | Manufacture of heat pipe |
| KR19990046646A (en) * | 1999-04-09 | 1999-07-05 | 장치국 | Vacuum copper pipe structure with groove wick |
| KR20020087228A (en) * | 2001-05-15 | 2002-11-22 | 주식회사 한국에치피티 | The apparatusfor manufacturing heat pipe |
| JP3113249U (en) * | 2005-06-02 | 2005-09-02 | 鼎緯熱傳科技股▲ふん▼有限公司 | heat pipe |
| CN1808043A (en) * | 2005-01-20 | 2006-07-26 | 鸿辰科技股份有限公司 | Heat pipe capillary structure sintering method and apparatus thereof |
-
2020
- 2020-04-24 CN CN202010331559.8A patent/CN111473672B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10238976A (en) * | 1997-02-21 | 1998-09-11 | Fujikura Ltd | Manufacture of heat pipe |
| KR19990046646A (en) * | 1999-04-09 | 1999-07-05 | 장치국 | Vacuum copper pipe structure with groove wick |
| KR20020087228A (en) * | 2001-05-15 | 2002-11-22 | 주식회사 한국에치피티 | The apparatusfor manufacturing heat pipe |
| CN1808043A (en) * | 2005-01-20 | 2006-07-26 | 鸿辰科技股份有限公司 | Heat pipe capillary structure sintering method and apparatus thereof |
| JP3113249U (en) * | 2005-06-02 | 2005-09-02 | 鼎緯熱傳科技股▲ふん▼有限公司 | heat pipe |
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| CN111473672B (en) | 2024-03-29 |
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Effective date of registration: 20240305 Address after: No. 258, Dongping Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province, 215311 Applicant after: KUNSHAN PING TAI ELECTRONIC CO.,LTD. Country or region after: China Address before: 224000 No.6 Hexin Road, Yanlong street, Yandu District, Yancheng City, Jiangsu Province (d) Applicant before: JIANGSU MINGLIJIA TECHNOLOGY Co.,Ltd. Country or region before: China |
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