DE1752399B2 - METHOD OF FASTENING FINE-MESHED METAL NETS - Google Patents
METHOD OF FASTENING FINE-MESHED METAL NETSInfo
- Publication number
- DE1752399B2 DE1752399B2 DE19681752399 DE1752399A DE1752399B2 DE 1752399 B2 DE1752399 B2 DE 1752399B2 DE 19681752399 DE19681752399 DE 19681752399 DE 1752399 A DE1752399 A DE 1752399A DE 1752399 B2 DE1752399 B2 DE 1752399B2
- Authority
- DE
- Germany
- Prior art keywords
- metal sheets
- metal nets
- meshed metal
- arterial
- meshed
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Materials For Medical Uses (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
Die Erfindung bezieht sich auf ein Verfahren /ur Befestigung feinmaschiger Metallnetze auf konkaven Innenflächen von Metallblechen, insbesondere auf Rohrinnenflächen.The invention relates to a method / ur Fastening fine-meshed metal nets on concave inner surfaces of metal sheets, in particular on Inner pipe surfaces.
Die Aufgabe, feinmaschige Netze auf konkaven Innenflächen zu befestigen, besteht beispielsweise bei der Herstellung von Wärmerohren. Die Netzstruktur zerkleinert hier die Kapillaroberfläche und erhöht damit die kapillare Saugwirkung.The task of attaching fine-meshed nets to concave inner surfaces is for example the manufacture of heat pipes. The network structure here shreds the capillary surface and thus increases it the capillary suction.
Dabei ergibt sich die Schwierigkeit, daß die Netze während des Fixiervorganges nicht gleiehmäßig an der konkaven Fläche anliegen oder an diese angedrückt werden können. Dies gilt insbesondere, wenn der Fixiervorgang bei so hohen Temperaturen ablaufen muß, daß elastische Druckpolster nicht mehr angewandt werden können.The problem arises that the networks are not uniformly attached to the during the fixing process concave surface or can be pressed against it. This is especially true if the The fixing process must take place at such high temperatures that elastic pressure pads are no longer used can be.
Zur Lösung dieser Aufgabe schlägt die Erfindung vor, daß die Metallbleche zuerst so gekrümmt werden, daß die mit dem Netz zu überziehende Fläche durchgehend konvex wird, daß sodann das Netz über diese Fläche gespannt und mittels bekannter Verfahren, wie z. B. Diffusions-Sintern, Löten, fixiert wird und daß schließlich die Melallbleehe in die endgültige Form gebogen werden.To solve this problem, the invention proposes that the metal sheets are first curved so that the surface to be covered with the net becomes continuously convex, that then the net over this surface tensioned and using known methods, such as. B. diffusion sintering, soldering, is fixed and that finally the Melallbleehe can be bent into its final shape.
Besondere Vorteile ergibt dieses Verfahren bei der Herstellung von sogenannten Arterienwärmeröhren; das sind Wärmeröhren, bei denen der Kondensatrückfluß entlang einer Mantellinie in einem mit der Wärmeröhrenwand nur in Linienberührung stehenden Röhrchen erfolgt. Hier wird beim Biegen der mit. dem Netz versehenen Metallbleche in die endgültige Rohrform die Arterienstruktui einfach an ucr Nahi-Mantellinie eingelegt und verbindet sich so beim Verschweißen des Rohres automatisch mit diesem. Außerdem ist so der kapillare Kontakt zwischen der Arterie und den Wandkapillaren leicht sicherzustellen.This process has particular advantages in the manufacture of so-called arterial heat tubes; these are heat pipes in which the condensate return flow along a surface line in one with the Heat pipe wall only takes place in line contact tubes. When bending the with. to the Meshed metal sheets in the final tubular shape, the arterial structure simply on ucr Nahi surface line inserted and connects automatically to the pipe when it is welded. In addition, the capillary contact between the artery and the wall capillaries is easy to ensure.
Nachfolgend werden einige Einzelheiten des erfindungsgemäßen Verfahrens anhand zweier Figuren erläutert. Es zeigtSome details of the method according to the invention are given below with reference to two figures explained. It shows
F i g. 1 ein schematisches Schnittbild, den Verfahi'ensabschnitt des Neuspannens betreffend, sowieF i g. 1 shows a schematic sectional diagram, the procedural section regarding the re-tensioning, as well as
Fig. 2 ein schemalisches Schnittbild einer Arterien Wärmeröhre, die nach dem erfindungsgemäßen Verhören hergestellt wurde.2 shows a schematic sectional view of an arteries Heat pipe after interrogation according to the invention was produced.
In F ig. 1 ist ein Blech 1 zu sehen, das über e;: ι-konvexe solide Spannunterlage 2 gelegi isi. Dl·. _>s Blech soll mit einem Netz 3 überzogen werden und iss /υ diesem Zweck leicht vorgebogen, so daii μ-ϊικ· Krümmung der der Spannunterlage etwa etitspriLh; Die Krümmung erfolgt nur in einer Richtung uiv ί ," ·; im plastischen oder auch bei geeignetem Maien.J m elastischen Bereich liegen.In Fig. 1 can be seen a sheet 1, which over e ; : ι-convex solid tensioning pad 2 jegi isi. Dl ·. _> s sheet metal is to be covered with a mesh 3 and is slightly pre-bent for this purpose, so that μ-ϊικ · curvature of the tensioning base is approximately etitspriLh; The curvature takes place only in one direction uiv ί, "·; in the plastic or also with a suitable Maien.J m elastic range.
Dab Netz wird an den überhängenden Seilen !eichi gespannt, was durch Pfeile 4 und 5 angedeutet im. Die Spannung kann z.B. durch Gewichte oder federn,:.· Zugglieder erreicht werden.The net is attached to the overhanging ropes! Eichi excited to see what is indicated by arrows 4 and 5 in. the Tension can e.g. be achieved by weights or springs:. Tension members.
Diese Anordnung wird nun einem Fixierverfall! < i, unterzogen, das z. B. aus Löten, Sintern oder aus i'iiiini Verfahren zur chemischen Abscheidung aus <.;.. Gasphase (Chemical Vapor Deposition) besteht. Genide das letztgenannte Verfahren eignet sich besonder. gut für die hochwarmfeste Fixierung von Netzen, da cK Temperatur während des Fixierens (im Gegen1-, 1/ /mn Sintern) niedriger als die spätere maximale Betrieb-, temperatur sein kann.This arrangement is now becoming a fixation decay! <i, subjected to z. B. from soldering, sintering or from i'iiiini process for chemical deposition from <.; .. gas phase (Chemical Vapor Deposition) consists. The latter method is particularly suitable. good for the highly heat-resistant fixing of nets, since the cK temperature during fixing (in contrast to 1 - .1 / / mn sintering) can be lower than the later maximum operating temperature.
In einem praktischen Beispiel wurde auf Tantalbleche und Nci/.c aus Tantal ein Niobbelag aus der Reduktion von Niobpentachlorid mit Wasserstoff bei etwa 1000 C erzeugt, der Temperaturen von Ib(XTC widersteht.In a practical example, tantalum sheets were used and Nci / .c made of tantalum, a niobium coating from the reduction of niobium pentachloride with hydrogen at about 1000 C. that withstands temperatures of Ib (XTC.
Nach dem Fixieren des Netzes 3 auf dem Blech 1 \> ird das letztere in seine endgültige Form gebogen, ^e vielfach ein Rohr ist. Dabei erweist sich bereits die gme allseitige Haftung des Netzes, das bei den durchgefüh: ten Versuchen den Schrumpfungsprozeß der ursprünglich konvexen, jetzt aber konkaven Blechohcrfläche überstand, ohne sich abzulösen.After fixing the net 3 on the sheet metal 1 \> If the latter is bent into its final form, ^ e is often a pipe. This already proves the general adhesion of the network, which was carried out in the Try the process of shrinking the originally convex, but now concave, sheet metal outer surface survived without peeling.
Die Fig. 2 zeigt einen Querschnitt durch eine Arterienwärmeröhre, die mit einem Netz 3 nach dem erfindungsgemäßen Verfahren überzogen wurde:. Das ursprüngliche Blech 1 wird zu einem Rohr gebogen. welches dann entlang einer Mantellinie 6 verschweißt wird. Beim Schweißen werden nicht nur die Enden des Netzes nochmals befestigt, sondern es wird auch eine Arterie 7, das ist ein Röhrchen für den Kondensatrückfluß der Wärmeröhre, mit eingelegt und fixiert.Fig. 2 shows a cross section through an arterial warmth tube with a network 3 after Process according to the invention was coated :. The original sheet 1 is bent into a tube. which is then welded along a surface line 6. When welding, not only the ends of the The net is fastened again, but there is also an artery 7, which is a tube for the condensate return flow the heat pipe, inserted and fixed.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (3)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681752399 DE1752399C3 (en) | 1968-05-21 | Method of fastening fine-meshed metal nets | |
CH405269A CH497929A (en) | 1968-05-21 | 1969-03-18 | Method for fastening metal nets on concave inner surfaces of metal sheets and application of the method |
LU58249D LU58249A1 (en) | 1968-05-21 | 1969-03-20 | |
BE730534D BE730534A (en) | 1968-05-21 | 1969-03-27 | |
GB1228103D GB1228103A (en) | 1968-05-21 | 1969-05-05 | |
NL6907619A NL6907619A (en) | 1968-05-21 | 1969-05-19 | |
FR6916299A FR2009000A1 (en) | 1968-05-21 | 1969-05-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681752399 DE1752399C3 (en) | 1968-05-21 | Method of fastening fine-meshed metal nets |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1752399A1 DE1752399A1 (en) | 1971-05-27 |
DE1752399B2 true DE1752399B2 (en) | 1976-03-18 |
DE1752399C3 DE1752399C3 (en) | 1976-11-04 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
NL6907619A (en) | 1969-11-25 |
FR2009000A1 (en) | 1970-01-30 |
GB1228103A (en) | 1971-04-15 |
CH497929A (en) | 1970-10-31 |
BE730534A (en) | 1969-09-01 |
DE1752399A1 (en) | 1971-05-27 |
LU58249A1 (en) | 1969-07-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 |