CH379211A - Connection of two cylindrical metallic workpieces by gap soldering - Google Patents
Connection of two cylindrical metallic workpieces by gap solderingInfo
- Publication number
- CH379211A CH379211A CH986060A CH986060A CH379211A CH 379211 A CH379211 A CH 379211A CH 986060 A CH986060 A CH 986060A CH 986060 A CH986060 A CH 986060A CH 379211 A CH379211 A CH 379211A
- Authority
- CH
- Switzerland
- Prior art keywords
- soldering
- connection
- gap
- cylindrical metallic
- metallic workpieces
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Description
Verbindung zweier zylindrischer metallischer Werkstücke durch Spaltlötung Die Erfindung bezieht sich auf die Verbindung zweier zylindrischer metallischer Werkstücke durch Spaltlötung. Bekanntlich wird bei derartigen Lötver- bindungen die Abmessung des Lötspaltes so gewählt, dass das Lot auf Grund der wirkenden Kapillar kräfte durch die ganze Lotlänge gezogen wird. Die Werkstücke werden hierzu z.
B. in engem Schiebesitz, Haftsitz, Festsitz oder Presssitz aufeinandergepasst. Nun können insbesondere bei der Verbindung von langen Rohrstücken beim Einführen des Werkstückes mit dem kleineren Aussendurchmesser in das Werk stück mit dem grösseren Aussendurchmesser Verkan- tungen entstehen, so dass die Einhaltung des konstan ten Lötspaltes nicht mehr gewährleistet ist und eine sichere Lötverbindung nicht entstehen kann.
Insbesondere bei Anlagen auf dem Gebiet der chemischen Verfahrenstechnik, z. B. für Gasverflüssi gung und Isotopentrennung, sowie in Reaktoranlagen können jedoch mangelhafte Lötverbindungen ein Ausserbetriebsetzen der gesamten Anlage nach sich ziehen, weshalb gerade hierbei der erforderliche Sicherheitsfaktor für gute Lötverbindungen beson ders hoch ist.
Die Erfindung besteht darin, dass das Werkstück mit dem grösseren Aussendurchmesser ein Endstück mit etwas grösserem Innendurchmesser als der übrige Teil dieses Werkstückes besitzt, welches Endstück neben dem Lötspalt mindestens eine öffnung zur Einführung des Lotes aufweist. Hierdurch wird eine verkantungsfreie Einpassung der beiden Werkstücke ineinander ermöglicht. Anschliessend wird die Erfindung anhand des in der Zeichnung dargestellten Ausführungsbeispiels er läutert.
Das metallische und zylindrische Rohrstück 1, das mit einem ebensolchen Rohrstück 2 mit kleinerem Aussendurchmesser als derjenige des Rohrstückes 1 durch Spaltlötung verbunden werden soll, weist ein Endstück 3 mit etwas grösserem Innendurchmesser als der übrige Teil dieses Werkstückes auf, wodurch eine verkantungsfreie Einführung des Rohres 2, wel ches unter Umständen eine Länge von mehreren Metern aufweist, erleichtert wird. Die beiden Werk stücke werden über die Lötlänge 4 miteinander ver bunden, wozu. das Lot durch die Öffnungen 5 in den Lötspalt eingeführt wird.
Eine vorteilhafte Ausbil dung der Lötflächen besteht darin, dass mindestens die Lötfläche eines der beiden Werkstücke - im Ausführungsbeispiel das Rohrstück 1 - quer zur Ein- strömrichtung des Lotes in Ebenen senkrecht zur Zy linderachse eine Anzahl von in sich geschlossenen Rillen 6 aufweist.
Connection of two cylindrical metallic workpieces by gap soldering The invention relates to the connection of two cylindrical metallic workpieces by gap soldering. It is known that in such soldered connections the dimensions of the soldering gap are chosen so that the solder is drawn through the entire length of the solder due to the capillary forces that act. The workpieces are z.
B. in a tight sliding fit, tight fit, interference fit or interference fit. Now, especially when connecting long pipe sections, when inserting the workpiece with the smaller outer diameter into the workpiece with the larger outer diameter, canting can occur, so that compliance with the constant soldering gap is no longer guaranteed and a secure soldered connection cannot be created.
Particularly in systems in the field of chemical engineering, e.g. B. for gas liquefaction and isotope separation, as well as in reactor systems, however, defective soldered connections can shut down the entire system, which is why the necessary safety factor for good soldered connections is particularly high here.
The invention consists in that the workpiece with the larger outside diameter has an end piece with a slightly larger inside diameter than the rest of this workpiece, which end piece has at least one opening for the introduction of the solder in addition to the soldering gap. This enables the two workpieces to fit into one another without tilting. The invention will then be explained using the exemplary embodiment shown in the drawing.
The metallic and cylindrical pipe section 1, which is to be connected to the same pipe section 2 with a smaller outer diameter than that of the pipe section 1 by gap soldering, has an end piece 3 with a slightly larger inner diameter than the rest of this workpiece, whereby a tilt-free introduction of the pipe 2 , which may have a length of several meters, is facilitated. The two work pieces are connected to each other via the soldering length 4, for which purpose. the solder is introduced through the openings 5 into the soldering gap.
An advantageous formation of the soldering surfaces is that at least the soldering surface of one of the two workpieces - in the exemplary embodiment the pipe section 1 - has a number of self-contained grooves 6 transversely to the direction of flow of the solder in planes perpendicular to the cylinder axis.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH986060A CH379211A (en) | 1960-09-01 | 1960-09-01 | Connection of two cylindrical metallic workpieces by gap soldering |
GB24959/61A GB942164A (en) | 1960-09-01 | 1961-07-10 | Brazed or soldered joints |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH986060A CH379211A (en) | 1960-09-01 | 1960-09-01 | Connection of two cylindrical metallic workpieces by gap soldering |
Publications (1)
Publication Number | Publication Date |
---|---|
CH379211A true CH379211A (en) | 1964-06-30 |
Family
ID=4356459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH986060A CH379211A (en) | 1960-09-01 | 1960-09-01 | Connection of two cylindrical metallic workpieces by gap soldering |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH379211A (en) |
GB (1) | GB942164A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0124712A1 (en) * | 1983-03-25 | 1984-11-14 | BBC Brown Boveri AG | Board fixture, especially for a circuit board, and method for its manufacture |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2917335C2 (en) * | 1979-04-28 | 1982-07-15 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Connection to be soldered by means of solder in a soldering furnace |
AT362459B (en) * | 1979-07-12 | 1981-05-25 | Plansee Metallwerk | METHOD FOR CONNECTING INDIVIDUAL PARTS OF A X-RAY ANODE, IN PARTICULAR ROTARY ANODE |
US4425299A (en) * | 1980-09-24 | 1984-01-10 | Sumitomo Electric Industries, Ltd. | Method for bonding sintered metal pieces |
-
1960
- 1960-09-01 CH CH986060A patent/CH379211A/en unknown
-
1961
- 1961-07-10 GB GB24959/61A patent/GB942164A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0124712A1 (en) * | 1983-03-25 | 1984-11-14 | BBC Brown Boveri AG | Board fixture, especially for a circuit board, and method for its manufacture |
Also Published As
Publication number | Publication date |
---|---|
GB942164A (en) | 1963-11-20 |
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