WO2002044639A1 - Caloduc a structure de meche frittee avec trous de type tuyaux paralleles et procede de fabrication de celui-ci - Google Patents

Caloduc a structure de meche frittee avec trous de type tuyaux paralleles et procede de fabrication de celui-ci Download PDF

Info

Publication number
WO2002044639A1
WO2002044639A1 PCT/KR2001/002007 KR0102007W WO0244639A1 WO 2002044639 A1 WO2002044639 A1 WO 2002044639A1 KR 0102007 W KR0102007 W KR 0102007W WO 0244639 A1 WO0244639 A1 WO 0244639A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
tool
heat pipe
wick
wall
Prior art date
Application number
PCT/KR2001/002007
Other languages
English (en)
Inventor
Seung-Ahn Kwon
Original Assignee
Khpt Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020000071852A external-priority patent/KR100329659B1/ko
Priority claimed from KR2020000034341U external-priority patent/KR200222465Y1/ko
Priority claimed from KR2020010007714U external-priority patent/KR200238395Y1/ko
Priority claimed from KR10-2001-0017433A external-priority patent/KR100394309B1/ko
Application filed by Khpt Co., Ltd filed Critical Khpt Co., Ltd
Priority to AU2002218548A priority Critical patent/AU2002218548A1/en
Publication of WO2002044639A1 publication Critical patent/WO2002044639A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1103—Making porous workpieces or articles with particular physical characteristics
    • B22F3/1109—Inhomogenous pore distribution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
    • B22F7/004—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/18—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes sintered

Definitions

  • the present invention relates, in general, to a heat pipe with various wick structures and method for producing the same and, in particular, to a heat pipe with various wick structures, in which metal powders or superfine metal fibers are deposited on a metal plate in a predetermined thickness, sintered, and shaped into a cylinder, a sintered metal powder wick is attached to an inner wall of the heat pipe, and movement of the working fluid is increased by capillary action because at least one of pipe type continuous air holes longitudinally positioned in the pipe are inside of the wick, and method for producing the heat pipe.
  • a capillary type heat pipe has a structure in which a dense and thin net yam is attached to an inner wall of the pipe or fine grooves are formed on the wall, or grooves are formed on the wall as well as the net yam is attached to the wall, and a working fluid such as methyl alcohol, acetone, water (distilled water) is charged into the capillary type heat pipe and the pipe is sealed.
  • a working fluid such as methyl alcohol, acetone, water (distilled water) is charged into the capillary type heat pipe and the pipe is sealed.
  • the heat pipe with the dense net yam has been widely used.
  • the heat pipe has disadvantages in that the heat pipe should have the dense metal net yam attached to the inner wall thereof, so that when the heat pipe is thin or long, the metal net yam is hard to produce and production cost becomes high.
  • the metal net yam attached heat pipe is bent, the metal net yam on a bent part of the heat pipe is damaged, and so the heat transfer does not sufficiently occur, and a mobility of the working fluid owing to capillary action is reduced.
  • a heat pipe, to which a wick is partially attached was developed, but the heat pipe has an operational problem when a heated portion of the heat pipe is positioned at a higher level than the heat emitting portion of the heat pipe.
  • a heat pipe with fine grooves has excellent mobility of liquid in the longitudinal direction thanks to the capillary action of the fine grooves, but is inferior in terms of the mobility of liquid in the circumferential direction.
  • the condensed liquid is not uniformly distributed over the circumference of the heat pipe because liquid does not sufficiently flow in the direction of circumference.
  • another type of heat pipe is used, in which a dense metal net yam is covered on fine grooves. This heat pipe with grooves and metal net yam has a good performance; however, the heat pipe has disadvantages in that its production process is very complicated and the production cost is high.
  • Fig. 1 is a sectional view of a heat pipe produced by inserting a tool and wires and removing them according to the present invention
  • Fig. 2 is a sectional view of the heat pipe, into which a tool and wires are inserted, according to the present invention
  • Fig. 3 is a sectional view of the heat pipe produced by inserting the tool and removing it according to the present invention
  • Figs. 4a and 4b are fragmentary sectional views of Fig. 1; Figs. 5a and 5b are fragmentary sectional views of Fig. 2; Figs. 6a and 6b illustrate various shapes of wires; 11.
  • said metal powder consists of copper, and copper-tin alloy powder containing 1 to 10 % tin or copper-zinc alloy powder containing 1 to 10 % zinc is used to promote sintering of the metal powder.
  • a heat pipe comprising: a sealed hollow metal pipe, both sides of which are sintered under vacuum; a porous wick attached to the inner wall of the metal pipe, said porous wick forming a mat of superfine metal fibers with a diameter of 20 to 80 ⁇ m in a shape of non- woven fabric; and a working fluid filled in the heat pipe, said working fluid being selected from the group consisting of ammonia, freon, methanol, water, and acetone.
  • a reducing gas selected from the group consisting of nitrogen, hydrogen, and a mixture of 70 to 90 % hydrogen and 10 to 30 % argon gas.
  • Figs. 7a to 14b illustrate various shapes of wick structures
  • Fig. 15a is a side view of sintered metal plate, on which metal powder or superfine metal fiber is coated;
  • Fig. 15b is a front view of cylindrical pipe produced by connecting both side of the metal plate of Fig. 15a;
  • Fig. 16 is a longitudinal sectional view of the heat pipe of the present invention.
  • a heat pipe with a wick structure containing pipe type continuous air holes produced by positioning a tool at a center of the pipe and multiple wires in contact with an inner wall of the pipe, respectively; charging metal powder between the inner wall of the pipe and the tool; sintering the resulting structure in a furnace under a reducing atmosphere at 700 to 1000 °C for 10 to 180 min to attach a sponge type wick with fine air holes to the inner wall of the pipe; removing the tool and wires to form the wick structure with pipe type continuous air holes; charging a working fluid into the inside of the pipe under vacuum; and sealing the pipe.
  • wick structures may be formed by using various shapes of tools, and various shapes of wires are positioned in such a way that wires contact with the inner wall of the pipe or wires are positioned between the inner wall of the pipe and the tool.
  • the multiple wires are not inserted into the pipe, but the tool is positioned at a center of the pipe and sintered.
  • the present invention provides a method for producing a heat pipe with a wick structure containing pipe type continuous air holes, comprising the steps of positioning a tool at a center of the pipe and multiple wires at a position attached to an inner wall of the pipe, respectively ; charging metal powder between the inner wall of the pipe and the tool; sintering the resulting structure in a furnace under a reducing atmosphere at a temperature for a predetermined length of time to attach a sponge type wick with fine air holes to the inner wall of the pipe; removing the tool and wires to
  • the heat pipe is characterized in that multiple wires are positioned between the tool and the inner wall of the pipe, and sintered in a furnace under a reducing atmosphere at 700 to 1000 °C for 10 to 180 min.
  • the wick has a shape of pipe type continuous air holes selected from the group consisting of circle, lozenge, and ellipse.
  • the tool is made of one selected from the group consisting of Al 2 O 3 , stainless steel, and silicon nitride, and the wires are made of stainless steel of 0J to 1 mm thickness.
  • the wires are made of stainless steel of 0J to 1 mm thickness.
  • the diameter of the wire is less than 0.1 mm, the wire is not suitable to be used because the wire is too thin.
  • the diameter is more than 1 mm, heat transfer performance and capillary force of the heat pipe are reduced because a path for moving evaporated gas becomes narrow.
  • the metal powder is sintered at a temperature of 700 to 1000 °C, preferably 850 to 950°C .
  • a temperature of 700 to 1000 °C preferably 850 to 950°C .
  • time required to sufficiently sinter the metal powder is too long.
  • the temperature is higher than 1000 ° C, copper powder may be melted, and so the wick structure is hard to form.
  • the powder is sintered in a furnace under a reducing atmosphere for 10 to 180 min. When the powder is sintered for less than 10 min, the powder cannot be sufficiently sintered. On the other hand, the powder is sintered for 180 min or more, the copper powder is melted, and so fine air holes are hard to form.
  • the metal powder consists of copper and has a particle diameter of 40 to 1000 ⁇ m, preferably 100 to 400 ⁇ m.
  • copper-tin alloy powder containing 1 to 5 % tin or copper-zinc alloy powder containing 1 to 5 % zinc is used to promote sintering of the metal powder.
  • the working fluid examples include liquid with a good thermal conductivity such as water, methyl alcohol, and acetone.
  • the present invention provides a method for producing a heat pipe, comprising the steps of: depositing metal powder of 100 to 250 mesh on a metal plate
  • the metal plate is made of metals with an excellent thermal conductivity, which can endure a pressure in the sealed heat pipe and be used for a long time, such as copper, iron, aluminum, and stainless steel.
  • the metal plate is made of copper.
  • the metal plate with grooves may be used to ensure rapid flow of the working fluid, and the metal plate with V or U shaped grooves, which are dug in a longitudinal direction of the pipe, may be used to ensure rapid flow of the working fluid and enlarge a heat transfer area.
  • the metal powder may be made of copper, iron, aluminum, or stainless steel. Preferably, the powder is made of copper. A spherical particle diameter of the powder may be 100 to 250 mesh, preferably 150 mesh. To rapidly sinter the powder, copper-tin alloy powder containing 1 to 10 % tin, or copper-zinc alloy powder containing 1 to 10 % zinc may be used.
  • the metal powder it is preferable to sinter the metal powder at a temperature of 850 to 950 ° C .
  • a temperature of 850 to 950 ° C it takes a long time to sufficiently sinter the metal powder.
  • the temperature is higher than 950 ° C, copper powder may be melted, and so the wick structure is hard to form.
  • the powder is sintered in a furnace under a reducing atmosphere for 10 to 180 min. When the powder is sintered for less than 10 min, the powder cannot be sufficiently sintered. On the other hand, the powder is sintered for 180 min or more, the copper powder is melted, and so fine air holes are hard to form.
  • the working fluid is a liquid such as ammonia, freon, methanol, water, and organics (e.g. acetone), which can be easily vaporized, and working fluids suitable to be used according to a working temperature and a material of pipe are
  • the heat pipe may be sealed with a metal or plastic cap, PVC, bakelite, or teflon.
  • the heat pipe of the present invention may have the wick structure, in which a non-woven fabric type superfine metal fiber mat is attached to the metal plate.
  • the resulting metal plate is sintered at 700 to 1500 ° C under reducing gas such as nitrogen, hydrogen, or a mixture of 70 to 90 % hydrogen and 10 to 30 % argon gas, and then both sides of the plate are connected to each other to produce a cylindrical heat pipe.
  • the working fluid is charged into the heat pipe under vacuum, and the heat pipe is sealed.
  • the metal plate is made of metals with excellent thermal conductivity, which can endure a pressure in the sealed heat pipe and be used for a long time, such as copper, iron, aluminum, and stainless steel.
  • the metal plate is made of copper.
  • the superfine metal fiber mat consisting of 20 to 80 m thin fibers has a good absorptivity and capillary force owing to many air holes connected to each other, and thus allows the working fluid to easily flow.
  • the superfine fiber is made of metals having good processability, such as copper, iron, aluminum, stainless steel, and titanium.
  • the superfine fiber is made of copper or copper alloy.
  • the working fluid is a liquid such as ammonia, freon, methanol, water, and organics (e.g. acetone), which can be easily vaporized.
  • the hollow metal pipe may be sealed with a metal or plastic cap, PVC, bakelite, or teflon.
  • the wick may be longitudinally attached to the whole heat pipe or to a portion of the heat pipe the according to a use of the heat pipe. For example, when a whole length of the heat pipe is 1 m, the wick may be attached to only a portion of the heat pipe, which is positioned within a range from a heated portion to a position of 10 to 220 mm, because when one end of the metal pipe is at a lower position than the other end, heat transfer can be accomplished by a natural convection of an evaporated working fluid.
  • the wick when a heat source is positioned at an upper part of the heat pipe, which stands vertically, or the heat pipe is lain horizontally, the wick is attached to the whole heat pipe.
  • the wick consisting of superfine metal fiber may be sintered in conjunction with a metal net yam. That is to say, even though the metal net yam has a lower absorptivity and capillary force than the superfine metal fiber, and so mobility of fluid is reduced, the wick comprising the metal net yam can be used because the metal net yam has a excellent tensile force.
  • a sectional view of heat pipe is illustrated, in which sintered metal powder is attached to the pipe and a wick has pipe type continuous air holes.
  • the sintered metal powder wick 2 and fine void holes 3 in the sintered metal powder wick are extended from an evaporation part of the pipe to a condensation part of the pipe. 4 is a path for moving evaporated gas.
  • a sectional view of the heat pipe is illustrated, into which a tool and wires used to sinter metal powder are inserted.
  • the tool 5 is made of ceramic materials such as Al 2 O 3 or steel materials such as stainless steel, to which metal powder is not attached during sintering metal powder.
  • the metal powder is charged between the pipe and the tool, which are standing vertically, sintered, then the tool 5 and wires 6 are removed, thereby the pipe of Fig. 1 with pipe type continuous air holes 3 and 4 is produced and the sponge type metal powder is attached to an inner wall of the pipe by sintering of the powder.
  • FIG. 3 a sectional view of a heat pipe with the simple structure produced by inserting the tool 5 and removing it without using wires 6 is illustrated.
  • wick structures can be formed as shown in Figs. 7a to 14b.
  • Wires 6 may be positioned in such a way that wires contact the inner wall of the pipe or wires are inside of the powder wick, as shown in Figs. 4a to 5b.
  • various shapes of air hole such as circle, quadrangle, lozenge, and triangle may be formed in the wick, and positioned in such a way that holes contact the inner wall of the pipe or holes are positioned between the tool and the inner wall of the pipe.
  • the heat pipe of the present invention has a higher heat transfer effect than the conventional heat pipe because a sponge type wick formed by sintering has a more improved capillary force than other types of wicks.
  • An Al 2 O 3 tool with a diameter of 8 mm and twelve stainless steel wires with a diameter of 0.5 mm were positioned at a center of an anoxic copper pipe with an outer diameter of 13 mm and a length of 30 cm.
  • copper powder with a diameter of 100 to 400 ⁇ m was charged, sintered in a furnace under a reducing atmosphere at 850 to 950 ° C for 30 to 120 min, then the resulting ceramic tool and wire were removed.
  • the resulting pipe had pipe type continuous
  • FIG. 15 a structure of a heat pipe 10 according to another embodiment of the present invention is illustrated in Figs. 15 and 16.
  • the heat pipe 10 consists of a hollow metal pipe 11 in which both ends 11a and lib are sealed and the inside is a vacuum, the wick 12 attached to the inner wall of the metal pipe 11, and the working fluid charged in the hollow metal pipe 11.
  • the heat pipe 10 in Fig. 15 a hollow metal pipe 11 in which both ends 11a and lib are sealed and the inside is a vacuum
  • the wick 12 attached to the inner wall of the metal pipe 11, and the working fluid charged in the hollow metal pipe 11.
  • the metal plate 13 of Fig. 15a, to which the wick 12 is attached, is produced by depositing metal powder of 100 to 250 mesh in a thickness of 0.2 to 2 mm on the metal plate 13, and sintering the resulting metal plate in a furnace under a reducing atmosphere at 700 to 1500 °C under reducing gas such as nitrogen, hydrogen, or a mixture of hydrogen and argon gas for 10 to 180 min.
  • reducing gas such as nitrogen, hydrogen, or a mixture of hydrogen and argon gas for 10 to 180 min.
  • Copper powder with a size of 150 meshes was uniformly deposited on a copper plate with a width of 600 mm and a thickness of 0.7 mm in a thickness of 0.6 mm to give a copper-coated copper plate as shown in Fig. 15a, which was then sintered in a continuous type furnace under a reducing atmosphere at 800 to 1000 °C for 30 to 120 min and cut into rolls with a width of 38.7 mm, followed by soldering the rolls with copper phosphorous brazing metal in a pipe-manufacturing machine to afford pipes with a wick structure, which were 12.70 mm in diameter, as shown in Fig. 15b. Phosphorous of the solder prevents the copper from being oxidized.
  • the resulting pipe was cut in a length of 300 mm, and both sides 11a and
  • the heat pipe of the present invention in which a superfine metal fiber was coated, with a conventional heat pipe
  • the conventional heat pipe, to which metal net yams were attached were tested for a temperature and a heat transfer time.
  • the working fluid occupied 6 % of total volume in the pipe, a length of pipe exposed to heat source was 10 cm, the heat pipe had scales indicating positions of 0J m, 0.5 m, and 1 m from the heat source and horizontally set, the heat source was water at 60 °C , and temperatures at each position were measured every second within a range of 5 to 30 sec.
  • temperatures of the heat pipe of the present invention are different from those of the conventional heat pipe, as shown in Table 2, and the heat pipe of the present invention has more excellent heat transfer performance than the conventional heat pipe.
  • the present invention provides a heat pipe with various wick structures containing pipe type continuous air holes and a method for producing the heat pipe, in which the prepared wick is inserted into the pipe.
  • the method comprises the steps of charging metal powder between an inner wall of the pipe and a tool(or wires), sintering the metal powder to attach it to the inner wall of the pipe, then removing wires to produce pipe type continuous air holes.
  • the method of the present invention has advantages in that a process for producing the heat pipe is simple, and that heat can be sufficiently rapidly transferred because a flow velocity of a working fluid is increased owing to osmotic action and heat is transferred through the wick attached to the heat pipe.
  • Another advantages of the present invention are that the production method of the heat pipe becomes simple by producing the heat pipe after metal powder or superfine metal fiber is coated on the metal plate and sintered, and that a bent-up property is excellent because the wick is strongly attached to the metal plate by sintering, as well as heat transfer effect, workability, and production cost are excellent because movement of the working fluid is increased by the osmotic action.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Sustainable Development (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

L'invention concerne un caloduc avec une structure de mèche contenant des trous d'air continus. Le procédé de fabrication de ce caloduc consiste à placer respectivement un outil au centre dudit caloduc et de multiples fils (6) au niveau d'une position en contact avec une paroi intérieure du caloduc, à charger une poudre métallique entre la paroi intérieure du caloduc et l'outil (5), à fritter la structure résultante dans un four dans une atmosphère de réduction comprise entre 700 et 1000 °C pendant 10 à 180 minutes afin de fixer une mèche de type éponge avec de petits trous d'air sur la paroi intérieure du caloduc, à retirer l'outil et les fils pour former la structure de mèche avec des trous d'air continus de type tuyaux, à charger un fluide de travail à l'intérieur du caloduc sous vide, et à fermer hermétiquement le caloduc.
PCT/KR2001/002007 2000-11-30 2001-11-22 Caloduc a structure de meche frittee avec trous de type tuyaux paralleles et procede de fabrication de celui-ci WO2002044639A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002218548A AU2002218548A1 (en) 2000-11-30 2001-11-22 Sintered wick structure heat pipe with parallel pipe holes and manufature methodthereof

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR2000/71852 2000-11-30
KR1020000071852A KR100329659B1 (ko) 2000-11-30 2000-11-30 파이프식 연속기공의 윅 구조를 형성한 히트파이프의제조방법
KR2020000034341U KR200222465Y1 (ko) 2000-12-07 2000-12-07 파이프식 연속기공의 다양한 윅 구조를 형성한 히트파이프
KR2000/34341 2000-12-07
KR2001/7714U 2001-03-21
KR2020010007714U KR200238395Y1 (ko) 2001-03-21 2001-03-21 극세선 금속섬유의 윅을 이용한 히트파이프
KR2001/17433 2001-04-02
KR10-2001-0017433A KR100394309B1 (ko) 2001-04-02 2001-04-02 금속판에 금속 분말을 피복 소결한 윅을 이용한히트파이프의 제조방법

Publications (1)

Publication Number Publication Date
WO2002044639A1 true WO2002044639A1 (fr) 2002-06-06

Family

ID=27483464

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2001/002007 WO2002044639A1 (fr) 2000-11-30 2001-11-22 Caloduc a structure de meche frittee avec trous de type tuyaux paralleles et procede de fabrication de celui-ci

Country Status (2)

Country Link
AU (1) AU2002218548A1 (fr)
WO (1) WO2002044639A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100413061C (zh) * 2004-06-07 2008-08-20 鸿富锦精密工业（深圳）有限公司 一种热管及其制造方法
CN100453956C (zh) * 2005-11-01 2009-01-21 富准精密工业(深圳)有限公司 烧结式热管
CN101767270B (zh) * 2010-01-26 2011-11-02 中山伟强科技有限公司 一种均热板的封口结构与制造方法
WO2014099806A1 (fr) * 2012-12-21 2014-06-26 Elwha Llc Caloduc
CN104075603A (zh) * 2014-07-08 2014-10-01 厦门大学 一种热管复合吸液芯及其制备方法
DE102013103836A1 (de) * 2013-04-16 2014-10-16 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen eines Verdampferrohres
JP5685656B1 (ja) * 2014-01-17 2015-03-18 株式会社フジクラ ヒートパイプ
US9404392B2 (en) 2012-12-21 2016-08-02 Elwha Llc Heat engine system
US20170234625A1 (en) * 2014-11-17 2017-08-17 Furukawa Electric Co., Ltd. Heat Pipe
US9752832B2 (en) 2012-12-21 2017-09-05 Elwha Llc Heat pipe
DE102016113620A1 (de) * 2016-07-25 2018-01-25 Volkswagen Aktiengesellschaft Verfahren zur Herstellung eines Gehäusebauteils eines Verbrennungsmotors
JP2020079699A (ja) * 2017-12-28 2020-05-28 古河電気工業株式会社 ヒートパイプ
DE102021102959A1 (de) 2020-02-12 2021-08-12 Miba Sinter Austria Gmbh Verfahren zur Herstellung eines Wärmerohres
CN115682792A (zh) * 2022-09-07 2023-02-03 中国原子能科学研究院 吸液芯及其制造方法
CN115682792B (zh) * 2022-09-07 2024-05-31 中国原子能科学研究院 吸液芯及其制造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716788A (en) * 1981-05-01 1982-01-28 Oki Densen Kk Manufacture of heat pipe
JPS60251390A (ja) * 1984-05-28 1985-12-12 Matsushita Refrig Co ヒ−トパイプの製造方法
KR20010062646A (ko) * 1999-12-22 2001-07-07 오길록 소결된 윅 구조를 갖는 히트 파이프 및 그의 제조방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716788A (en) * 1981-05-01 1982-01-28 Oki Densen Kk Manufacture of heat pipe
JPS60251390A (ja) * 1984-05-28 1985-12-12 Matsushita Refrig Co ヒ−トパイプの製造方法
KR20010062646A (ko) * 1999-12-22 2001-07-07 오길록 소결된 윅 구조를 갖는 히트 파이프 및 그의 제조방법

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100413061C (zh) * 2004-06-07 2008-08-20 鸿富锦精密工业（深圳）有限公司 一种热管及其制造方法
CN100453956C (zh) * 2005-11-01 2009-01-21 富准精密工业(深圳)有限公司 烧结式热管
CN101767270B (zh) * 2010-01-26 2011-11-02 中山伟强科技有限公司 一种均热板的封口结构与制造方法
US9404392B2 (en) 2012-12-21 2016-08-02 Elwha Llc Heat engine system
WO2014099806A1 (fr) * 2012-12-21 2014-06-26 Elwha Llc Caloduc
US10358945B2 (en) 2012-12-21 2019-07-23 Elwha Llc Heat engine system
US9752832B2 (en) 2012-12-21 2017-09-05 Elwha Llc Heat pipe
EP2792437A1 (fr) * 2013-04-16 2014-10-22 Benteler Automobiltechnik GmbH Procédé de fabrication d'un tube d'évaporateur
DE102013103836A1 (de) * 2013-04-16 2014-10-16 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen eines Verdampferrohres
DE102013103836B4 (de) 2013-04-16 2018-05-03 Benteler Automobiltechnik Gmbh Verfahren zum Herstellen eines Verdampferrohres
JP2015135211A (ja) * 2014-01-17 2015-07-27 株式会社フジクラ ヒートパイプ
JP5685656B1 (ja) * 2014-01-17 2015-03-18 株式会社フジクラ ヒートパイプ
CN104075603A (zh) * 2014-07-08 2014-10-01 厦门大学 一种热管复合吸液芯及其制备方法
CN104075603B (zh) * 2014-07-08 2016-06-01 厦门大学 一种热管复合吸液芯及其制备方法
US20170234625A1 (en) * 2014-11-17 2017-08-17 Furukawa Electric Co., Ltd. Heat Pipe
US10184729B2 (en) * 2014-11-17 2019-01-22 Furukawa Electric Co., Ltd. Heat pipe
DE102016113620A1 (de) * 2016-07-25 2018-01-25 Volkswagen Aktiengesellschaft Verfahren zur Herstellung eines Gehäusebauteils eines Verbrennungsmotors
DE102016113620B4 (de) 2016-07-25 2022-08-04 Volkswagen Aktiengesellschaft Verfahren zur Herstellung eines Gehäusebauteils eines Verbrennungsmotors mit Wärmerohr
JP2020079699A (ja) * 2017-12-28 2020-05-28 古河電気工業株式会社 ヒートパイプ
JP7189901B2 (ja) 2017-12-28 2022-12-14 古河電気工業株式会社 ヒートパイプ
DE102021102959A1 (de) 2020-02-12 2021-08-12 Miba Sinter Austria Gmbh Verfahren zur Herstellung eines Wärmerohres
US11536517B2 (en) 2020-02-12 2022-12-27 Miba Sinter Austria Gmbh Method for producing a heat pipe
CN115682792A (zh) * 2022-09-07 2023-02-03 中国原子能科学研究院 吸液芯及其制造方法
CN115682792B (zh) * 2022-09-07 2024-05-31 中国原子能科学研究院 吸液芯及其制造方法

Also Published As

Publication number Publication date
AU2002218548A1 (en) 2002-06-11

Similar Documents

Publication Publication Date Title
WO2002044639A1 (fr) Caloduc a structure de meche frittee avec trous de type tuyaux paralleles et procede de fabrication de celui-ci
US7743819B2 (en) Heat pipe and method for producing the same
US20070084587A1 (en) Hybrid wicking materials for use in high performance heat pipes
US6994152B2 (en) Brazed wick for a heat transfer device
TWI260385B (en) Sintered heat pipe and method for manufacturing the same
US20070267179A1 (en) Heat pipe with composite capillary wick and method of making the same
US20120325440A1 (en) Cooling device
US7328831B1 (en) Method of making a brazed metal article and the article formed thereby
EP1639628A2 (fr) Dispositif de transfert de chaleur et procede de fabrication
KR20210033493A (ko) 가변 투과도의 심지 구조물을 갖는 히트 파이프
CN113566623B (zh) 双尺度毛细吸液芯及制备方法、及相变潜热式芯片散热器
CN209978682U (zh) 一种热管
US20060243426A1 (en) Wick Structure of Heat Pipe
KR20010062646A (ko) 소결된 윅 구조를 갖는 히트 파이프 및 그의 제조방법
KR100394309B1 (ko) 금속판에 금속 분말을 피복 소결한 윅을 이용한히트파이프의 제조방법
KR100329659B1 (ko) 파이프식 연속기공의 윅 구조를 형성한 히트파이프의제조방법
TW202223324A (zh) 熱管
KR200238395Y1 (ko) 극세선 금속섬유의 윅을 이용한 히트파이프
KR200222465Y1 (ko) 파이프식 연속기공의 다양한 윅 구조를 형성한 히트파이프
CN113251838A (zh) 用于制造热管的方法
JP3061447U (ja) 扁平ヒ―トパイプ
US20230332842A1 (en) Heat pipe and device
CA1131159A (fr) Methode de production d'une surface d'echange de chaleur amelioree
TWI251068B (en) Heat pipe and method for making the same
CN220339184U (zh) 一种烧结热管

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP

DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)