DE543074C - Manufacture of heat exchange bodies - Google Patents
Manufacture of heat exchange bodiesInfo
- Publication number
- DE543074C DE543074C DE1930543074D DE543074DD DE543074C DE 543074 C DE543074 C DE 543074C DE 1930543074 D DE1930543074 D DE 1930543074D DE 543074D D DE543074D D DE 543074DD DE 543074 C DE543074 C DE 543074C
- Authority
- DE
- Germany
- Prior art keywords
- heat exchange
- ribs
- heat exchanger
- points
- tubes
- 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
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
- B23K1/08—Soldering by means of dipping in molten solder
-
- 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
- B23K2101/14—Heat exchangers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM !.FEBRUAR 1932ISSUED ON !. FEBRUARY 1932
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
KLASSE 49 h GRUPPECLASS 49 h GROUP
e. Ij. Hugo Junkers in Dessau Herstellung von Wärmeaustauschkörpern Patentiert im Deutschen Reiche vom 22. März 1930 abe. Ij. Hugo Junkers in Dessau Manufacture of heat exchange bodies. Patented in the German Empire on March 22, 1930
Gegenstand der Erfindung ist ein Herstellungsverfahren für Wärmeaustauschkörper mit Heizrippen, die durch Eintauchen in ein schmelzflüssiges Lotbad wärmeleitend mit den Wandungen, über die der Wärmeaustausch erfolgen soll, verbunden werden. Gleichzeitig werden die Oberflächen des Wärmeaustauschkörpers mit einem Überzug des Lotbades versehen, z. B. verzinnt. Nach den bisherigenThe invention relates to a manufacturing method for heat exchange body with Heating fins that conduct heat by immersion in a molten solder bath with the Walls, over which the heat exchange is to take place, are connected. Simultaneously the surfaces of the heat exchanger body are provided with a coating of the solder bath, z. B. tinned. According to the previous ones
ίο Verfahren wurden die bereits mechanisch miteinander verbundenen Teile des Wärmeaustauschkörpers in. das feuerflüssige Bad eingetaucht und nach einiger Zeit wieder herausgezogen, wonach sie sich durch Berührung mit der Raumluft abkühlten. Diese Art der Abkühlung bewirkte* daß das Erstarren des Lot- und Überzugmetalls an den Stellen größter Anhäufung langsamer erfolgte als an den anderen Stellen. Das Lotmetall blieb so-ίο the procedures were already mechanically interrelated connected parts of the heat exchanger body in. Immersed the hot liquid bath and after some time pulled out again, after which they cooled down through contact with the room air. This kind of Cooling caused * the solidification of the solder and coating metal at the points largest accumulation occurred more slowly than in the other places. The solder remained so
ao mit gerade an den Verbindungsstellen zwischen den Rippen und den Wandungen länger flüssig als an den anderen Stellen; es trat eine Saugwirkung des schneller erstarrenden Überzugmetalls auf das länger warm blei-ao with straight at the junctions between the ribs and the walls longer fluid than in the other places; there was a suction effect of the faster solidifying Coating metal on the longer stay warm
ss5 bende Lotmetall in den Verbindungsfugen ein, so daß diese von Lotmetall entblößt wurden. Daher war es schwierig, die Verbindungsfugen, an denen eine besonders innige Vereinigung zur Erzielung eines guten Wärme-Überganges nötig wäre, gut mit dem Lotmetall auszufüllen. Dieser Übelstand würde auch bestehen bleiben, wenn die Abkühlung durch einen gleichmäßig über den ganzen Wärmeaustauschkörper geleiteten Luftstrom beschleunigt würde, wie es bei schnell zu küh- 3S lenden Gegenständen gebräuchlich ist.ss5 bende solder metal in the connection joints, so that these were bare of solder metal. It was therefore difficult to fill the connection joints, where a particularly close union would be necessary to achieve a good heat transfer, well with the solder metal. This inconvenience would remain to exist even if the cooling would be accelerated by a uniformly conducted over the heat exchange body air flow, as is common in fast to be cooled 3 S sirloin objects.
Gemäß der Erfindung werden die Übelstände dadurch beseitigt, daß die Verbindungsstellen der Rippen mit der Wandung während des Heraushebens aus dem Lotbad oder unmittelbar danach durch ein vorzugsweise auf diese Stellen geleitetes Kühlmittel, z. B. einen Luftstrom, abgekühlt werden, wobei jedoch die Abkühlung der Verbindungsstellen so erfolgt, daß diese schneller als der +5 Metallüberzug auf den Oberflächen des Wärmeaustauschkörpers erstarren. Der Luftstrom kann sowohl an der Seite der Wandungen, an welcher die Rippen befestigt sind, als auch an der anderen Seite dieser Wandungen auf die Befestigungsstellen geleitet werden.According to the invention, the inconveniences are eliminated in that the connection points of the ribs with the wall during the lifting out of the solder bath or immediately afterwards by a preferably coolant directed to these points, e.g. B. a stream of air, are cooled, wherein however, the connection points are cooled in such a way that they are faster than the +5 The metal coating solidifies on the surfaces of the heat exchanger body. The airflow can both on the side of the walls to which the ribs are attached and on the other side of these walls are passed to the fastening points.
Bei Wärmeaustauschkörpern, bei denen Rippen oder Lamellen auf Kühl- oder Heizrohre aufgezogen sind oder mit ihren Enden an solche Rohre oder auch an mit Rohren besetzte Wandungen angeschlossen sind, kann der Kühlmittelstrom durch diese Rohre geleitet werden. Durch die stärkere Abkühlung an den Verbindungsstellen wird das Lotmetall mehr in die Verbindungsfugen hineingedrängt und nimmt überdies ein feineres, die Festigkeit begünstigendes Gefüge an.For heat exchangers with fins or fins on cooling or heating pipes are drawn up or are connected with their ends to such pipes or to walls occupied with pipes, can the coolant flow can be directed through these tubes. Due to the stronger cooling At the connection points, the solder metal is pushed more into the connection joints and moreover assumes a finer structure that promotes strength.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE543074T | 1930-03-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE543074C true DE543074C (en) | 1932-02-01 |
Family
ID=6559906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1930543074D Expired DE543074C (en) | 1930-03-22 | 1930-03-22 | Manufacture of heat exchange bodies |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE543074C (en) |
-
1930
- 1930-03-22 DE DE1930543074D patent/DE543074C/en not_active Expired
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