JPH0317591B2 - - Google Patents
Info
- Publication number
- JPH0317591B2 JPH0317591B2 JP61093029A JP9302986A JPH0317591B2 JP H0317591 B2 JPH0317591 B2 JP H0317591B2 JP 61093029 A JP61093029 A JP 61093029A JP 9302986 A JP9302986 A JP 9302986A JP H0317591 B2 JPH0317591 B2 JP H0317591B2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- heat pipe
- pressing members
- manufacturing
- crushing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000003825 pressing Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- GXDVEXJTVGRLNW-UHFFFAOYSA-N [Cr].[Cu] Chemical compound [Cr].[Cu] GXDVEXJTVGRLNW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、ヒートパイプの製造方法、さらに
詳しくはヒートパイプの内部に作動液を注入した
後に、ヒートパイプの金属管製作動液注入ノズル
を封止することを含むヒートパイプの製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for manufacturing a heat pipe, and more particularly, to a method for manufacturing a metal tube of a heat pipe and sealing a hydraulic fluid injection nozzle after injecting a working fluid into the inside of the heat pipe. The present invention relates to a method of manufacturing a heat pipe.
従来の技術とその問題点
上述のヒートパイプの製造方法としては、ノズ
ルを真空ポンプなどに接続することにより、ヒー
トパイプの内部を真空に保持した状態でノズルの
封止されるべき部分を工具などではさみ付けて押
し潰して圧接し、このままの状態でノズルの不要
となる部分を切断除去し、その結果生じた切断端
面を溶接により被覆するようにしているものが知
られている。この従来の方法によれば、ノズルの
不要となる部分を切断除去した際に、ヒートパイ
プは真空ポンプなどとの接続が断たれるから、工
具などによるノズルの圧接部の気密が完全でない
と、ヒートパイプの内部に外気が流入することに
なる。圧接部の気密を完全なものにすることは非
常に困難であるし、そうしようとすれば歩留が低
下することになる。また、従来の方法は、その工
程が、圧接、切断および溶接のように複雑であ
り、製造のための時間およびコストが大であつ
た。Conventional technology and its problems The method for manufacturing the heat pipe described above is to connect the nozzle to a vacuum pump or the like, and while the inside of the heat pipe is kept in a vacuum, the part of the nozzle that is to be sealed is removed using a tool, etc. It is known that the nozzle is clamped and pressed together, the unnecessary portion of the nozzle is cut and removed in this state, and the resulting cut end surface is covered by welding. According to this conventional method, when the unnecessary part of the nozzle is cut and removed, the heat pipe is disconnected from the vacuum pump, etc., so if the pressure part of the nozzle is not completely airtight with a tool etc. Outside air will flow into the heat pipe. It is very difficult to make the press-welded part completely airtight, and if you try to do so, the yield will decrease. In addition, the conventional method requires complicated steps such as pressure welding, cutting, and welding, and requires a large amount of time and cost for manufacturing.
この発明の目的は、上述の問題点を解決したヒ
ートパイプの製造方法を提供することにある。 An object of the present invention is to provide a method for manufacturing a heat pipe that solves the above-mentioned problems.
問題点を解決するための手段
この発明によるヒートパイプの製造方法は、ヒ
ートパイプ本体の内部を金属管製作動液注入ノズ
ルを介して真空に保持した状態で、ノズルの封止
されるべき部分を一対の電導体製押圧部材の間に
はさんで加圧しノズルの同部分を中空部を無くす
ように偏平に押し潰し、かつ両押圧部材に電流を
流して押し潰しの結果生じたノズルの重なり合つ
ている部分を抵抗溶接することを特徴とするもの
である。Means for Solving the Problems The method for manufacturing a heat pipe according to the present invention is to maintain the inside of the heat pipe body in a vacuum via a metal tube-made dynamic liquid injection nozzle, and then seal the part of the nozzle to be sealed. The same part of the nozzle is flattened by applying pressure between a pair of conductive pressing members, and the nozzle is overlapped as a result of the crushing by applying current to both pressing members. The feature is that the attached parts are resistance welded.
実施例
この発明の実施例を図面を参照してつぎに説明
する。Embodiments Embodiments of the present invention will now be described with reference to the drawings.
ヒートパイプは、以下に説明する工程を除いて
常法による各工程を経たものであつて、パイプ本
体１１の一端に突出管状作動液注入ノズル１２が
一体的に設けられ、パイプ本体１１の内部には図
示しないウイツクが封入されている。パイプの素
材としては銅が一般的であるが、その他にアルミ
ニウム、ニツケル、ステンレス、炭素鋼などが用
いられる。 The heat pipe has undergone various steps according to conventional methods except for the steps described below. A wick (not shown) is included. Copper is commonly used as the material for pipes, but other materials such as aluminum, nickel, stainless steel, and carbon steel are also used.
さて、第１図から第３図を順次参照しながら、
ヒートパイプの製造方法について説明すると、ま
ず、第１図に示すように、ノズル１２の先端を、
図示しないが、ヒートパイプの内部を真空に保持
しかつ同内部に作動液を注入するための装置に接
続し、かつノズル１２をこれの基部近くにおいて
一対の押圧部材１３の間にはさむ。上述の装置は
周知のものでよい。両押圧部材１３は適当な手段
により相互に接近・離隔しかつ互いに引き寄せら
れる方向に圧力が加えられるようになつている。
両押圧部材１３は電極をも兼ねるものであつて、
導電性の良好な非鉄金属、例えば銅−クロム合金
でつくられている。各押圧部材１３には図示しな
い通電装置よりのびてきた導線１４がそれぞれ接
続されている。また、両押圧部材１３の対向面は
丸みを帯びている。つぎに、第２図に示すよう
に、両押圧部材１３が互いに引き寄せられる方向
に両押圧部材１３に圧力を加えてノズル１２の基
部近くの部分を偏平に押し潰し、かつ両押圧部材
１３に電流を加えて押し潰しの結果生じたリノズ
ル１２の重なり合つている部分を抵抗溶接する。
この場合、勿論ノズル１２の先端は上述の装置に
接続したままである。両押圧部材１３に加える圧
力は、これによりノズル１２が適切に潰れるが、
ノズル１２が切れない程度の大きさのものでなけ
ればならない。また両押圧部材１３に加える電流
は、これにより発生する抵抗熱の加熱によりノズ
ル１２の重なり合つている部分の全体が適当に接
合されるが、ノズル１２が焼き切れない程度の強
さのものでなければならない。そして最後に、第
３図に示すように、ノズル１２の溶接部を切断
し、切断部１５より先の部分を除去してヒートパ
イプの完成品とする。 Now, referring to Figures 1 to 3 in order,
To explain the method for manufacturing a heat pipe, first, as shown in FIG. 1, the tip of the nozzle 12 is
Although not shown, the heat pipe is connected to a device for keeping the inside of the heat pipe in a vacuum and injecting a working fluid into the same, and the nozzle 12 is sandwiched between a pair of pressing members 13 near the base of the heat pipe. The devices described above may be of known type. Pressure is applied to both pressing members 13 by appropriate means in the direction of moving them closer to each other, separating them from each other, and drawing them closer to each other.
Both pressing members 13 also serve as electrodes,
It is made of a nonferrous metal with good conductivity, such as a copper-chromium alloy. Each pressing member 13 is connected to a conducting wire 14 extending from an energizing device (not shown). Moreover, the opposing surfaces of both pressing members 13 are rounded. Next, as shown in FIG. 2, pressure is applied to both pressing members 13 in a direction in which they are drawn toward each other to flatten the portion near the base of nozzle 12, and electric current is applied to both pressing members 13. The overlapping portions of the renozzles 12 resulting from the crushing are resistance welded.
In this case, of course, the tip of the nozzle 12 remains connected to the device described above. The pressure applied to both pressing members 13 properly collapses the nozzle 12, but
It must be of such a size that the nozzle 12 cannot be cut. Furthermore, the electric current applied to both pressing members 13 should be strong enough to properly join the entire overlapping portions of the nozzles 12 due to the resistance heat generated thereby, but not to burn out the nozzles 12. There must be. Finally, as shown in FIG. 3, the welded portion of the nozzle 12 is cut and the portion beyond the cut portion 15 is removed to obtain a completed heat pipe.
いまここで、上述の方法を実施するに当たり、
重要な因子を一例として具体的に説明する。ヒー
トパイプは銅製（C1220）であり、そのノズル１
２の外径は４mm、肉厚は１mmである。両押圧部材
１３に加える圧力は100Kgｆであり、これにより
溶接部は1000Kg／cm2程度に加圧される。そして、
両押圧部材１３加える電流は9500A、またその電
圧は40Vである。 Now, when implementing the above method,
Important factors will be specifically explained as an example. The heat pipe is made of copper (C1220), and its nozzle 1
The outer diameter of No. 2 is 4 mm, and the wall thickness is 1 mm. The pressure applied to both pressing members 13 is 100 kgf, thereby pressurizing the welded part to about 1000 kg/cm 2 . and,
The current applied to both pressing members 13 is 9500A, and the voltage thereof is 40V.
発明の効果
この発明によれば、ヒートパイプの内部を真空
にした状態で、ヒートパイプのノズルを押し潰す
と同時に押し潰された部分を溶接するようにして
ノズルを封止しているから、ノズルの封止部より
外部の空気がヒートパイプの内部に流入すること
がなく、製作工程が短縮されて製作のための時間
およびコストを低減することができる。Effects of the Invention According to this invention, the nozzle of the heat pipe is crushed while the inside of the heat pipe is evacuated, and the crushed part is welded to seal the nozzle. Air from outside does not flow into the heat pipe through the sealing portion, and the manufacturing process is shortened, reducing manufacturing time and cost.
第１図から第３図は、この発明を実施する手順
を追つて示す説明図である。
１１……ヒートパイプ本体、１２……ノズル、
１３……押圧部材。
FIGS. 1 to 3 are explanatory diagrams showing the steps for implementing the present invention. 11... heat pipe body, 12... nozzle,
13...Press member.
Claims (1)
入ノズルを介して真空に保持した状態で、ノズル
の封止されるべき部分を一対の電導体製押圧部材
の間にはさんで加圧しノズルの同部分を中空部を
無くすように偏平に押し潰し、かつ両押圧部材に
電流を流して押し潰しの結果生じたノズルの重な
り合つている部分を抵抗溶接することを特徴とす
るヒートパイプの製造方法。1. While the inside of the heat pipe body is maintained in a vacuum via the metal pipe hydraulic fluid injection nozzle, the part of the nozzle to be sealed is sandwiched between a pair of conductive pressing members and pressurized to release the nozzle. A method for manufacturing a heat pipe, which comprises crushing the same part into a flat shape so as to eliminate a hollow part, applying an electric current to both pressing members, and resistance welding the overlapping part of the nozzle resulting from the crushing. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9302986A JPS62248581A (en) | 1986-04-21 | 1986-04-21 | Manufacture of heat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9302986A JPS62248581A (en) | 1986-04-21 | 1986-04-21 | Manufacture of heat pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62248581A JPS62248581A (en) | 1987-10-29 |
| JPH0317591B2 true JPH0317591B2 (en) | 1991-03-08 |
Family
ID=14071067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9302986A Granted JPS62248581A (en) | 1986-04-21 | 1986-04-21 | Manufacture of heat pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62248581A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2644866B2 (en) * | 1988-12-21 | 1997-08-25 | 株式会社日立製作所 | Vacuum sealing device for metal tubes |
| JP2016145670A (en) * | 2015-02-06 | 2016-08-12 | 奇▲こう▼科技股▲ふん▼有限公司 | Flat heat pipe ineffective end removal method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61191888A (en) * | 1985-02-20 | 1986-08-26 | Matsushita Refrig Co | Manufacture of heat pipe |
| JPS62196595A (en) * | 1986-02-24 | 1987-08-29 | Furukawa Alum Co Ltd | Sealing of operating liquid sealing port for heat pipe |
-
1986
- 1986-04-21 JP JP9302986A patent/JPS62248581A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61191888A (en) * | 1985-02-20 | 1986-08-26 | Matsushita Refrig Co | Manufacture of heat pipe |
| JPS62196595A (en) * | 1986-02-24 | 1987-08-29 | Furukawa Alum Co Ltd | Sealing of operating liquid sealing port for heat pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62248581A (en) | 1987-10-29 |
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