DE2732370A1 - METHOD AND DEVICE FOR PRODUCING A SOLDERED CONNECTION BETWEEN OVERLAPPING GUTTER PARTS - Google Patents
METHOD AND DEVICE FOR PRODUCING A SOLDERED CONNECTION BETWEEN OVERLAPPING GUTTER PARTSInfo
- Publication number
- DE2732370A1 DE2732370A1 DE19772732370 DE2732370A DE2732370A1 DE 2732370 A1 DE2732370 A1 DE 2732370A1 DE 19772732370 DE19772732370 DE 19772732370 DE 2732370 A DE2732370 A DE 2732370A DE 2732370 A1 DE2732370 A1 DE 2732370A1
- Authority
- DE
- Germany
- Prior art keywords
- clamping jaw
- clamping
- gutter parts
- gutter
- spindle
- 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
- 238000000034 method Methods 0.000 title claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000005476 soldering Methods 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 108091092889 HOTTIP Proteins 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/064—Gutters
- E04D13/068—Means for fastening gutter parts together
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Molten Solder (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Coating With Molten Metal (AREA)
Description
Verfahren und Vorrichtung zur Herstellung einer Lötverbindung zwischen sich überlappenden Dachri^nenteilenMethod and device for producing a soldered connection between overlapping roof trim parts
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Herstellung einer Lötverbindung zwischen sich überlappenden Dachrinnenteilen.The invention relates to a method and a device for producing a soldered connection between overlapping Gutter parts.
Dachrinnenteile aus NE-Metallen, verzinktem Stahl, insbesondere Zink oder Zinklegierungen, werden im allgemeinen durch Löten in ihren Oberlappungsbereichen miteinander verbunden, wobei es bei der Verwendung von verzinktem Stahl erforderlich ist, die Dachrinnenteile vor dem Löten durch Nieten miteinander zu verbinden. Beim Löten selbst arbeitet man meistens mit dem Lötkolben. Bevorzugt wird ein kupferner Kolben in Spitz- oder Hammerform. Zur Entfernung von Oxyden und Lotresten wird die heiße Spitze oder Schneide des Lötkolbens auf Salmiakstein abgerieben; dann bringt man Lötzinn auf den Salmiakstein und reibt den Lötkolben solange darauf ab, bis sich die Arbeitsfläche des Lötkolbens gut verzinnt hat. Auf den vorher mit Flußmittel behandelten Überlappungsbereich wird das Lötzinn mit dem Lötkolben aufgetragen. Das Lot soll dem Lötkolben nachfließen. Die Überlappung bei der Dachrinnenlötung beträgt mindestens 10 mm; bei der Lötverbindung der Dachrinne mit einem Rinnenendstück mindestens I mn. Die zu lötenden Flächen sollen dicht aneinanderliegen, so daß eine möglichst dünne Lotschicht, die eingeschwemmt wird, die Verbindung herstellt. Während der Lötung und bis zur Erstarrung des Lotes müssen die zu verbindenden Teile festgehalten oder eingespannt bleiben. Damit das eingeschwemmte Lot erstarren kann, muß der Lötvorgang immer dann unterbrochen werden, wenn eine der Gutter parts made of non-ferrous metals, galvanized steel, in particular zinc or zinc alloys, are generally connected to one another by soldering in their overlapping areas, it being necessary when using galvanized steel to connect the gutter parts to one another by riveting before soldering. When soldering yourself, you usually work with a soldering iron. A copper piston with a pointed or hammer shape is preferred. To remove oxides and solder residues, the hot tip or cutting edge of the soldering iron is rubbed on ammonia stone; Then you put solder on the ammonia stone and rub the soldering iron on it until the working surface of the soldering iron is well tinned. The solder is applied with the soldering iron to the overlap area previously treated with flux. The solder should flow into the soldering iron. The overlap in the gutter soldering is at least 10 mm; when soldering the gutter to a gutter end piece, at least I mn. The surfaces to be soldered should lie close to one another so that the thinnest possible solder layer, which is flooded in, establishes the connection . During the soldering and until the solder solidifies, the parts to be connected must be held or clamped . So that the flooded solder can solidify, the soldering process must always be interrupted when one of the
809885/0182809885/0182
Breite des Lötkolbens von z.B. 30 mm entsprechende Länge der Lötnaht hergestellt worder ist.Width of the soldering iron of e.g. 30 mm corresponding to the length of the soldering seam has been made.
Für die Beheizung des Kolbens wird heute vor allem Propangas, daneben auch Butangas verwendet.Propane gas is mainly used today to heat the piston, but also butane gas.
Die Festigkeit der Lötverbindung hängt jeweils im wesentlichen von der Form der Naht im Oberlappungsbereich und der Gleichmäßigkeit der Lötung ab.The strength of the soldered connection depends essentially on the shape of the seam in the overlap area and the uniformity of the soldering.
Aus den vorstehenden Ausführungen ergibt sich, daß die beim Verbinden von Dachrinnen durch Löten notwendigen Arbeiten nicht nur mit einer Reihe zeitaufwendiger, teilweise umständlicher, manueller Tätigkeiten, sondern auch mit einem vergleichsweise großen Lötzinnverbrauch von 30 bis 80 g/m hergestellte Lötnaht verbunden sind. Hinzu kommt, daß bei Verwendung von besonderen Flußmitteln die Flußmittelreste nach dem Löten sorgfältig entfernt werden müssen, um Korrosionserscheinungen zu vermeiden.From the above it follows that the necessary when connecting gutters by soldering Working not only with a series of time-consuming, sometimes cumbersome, manual activities, but are also associated with a comparatively large solder consumption of 30 to 80 g / m 2 of solder seam produced. In addition, if special fluxes are used, carefully remove the flux residues after soldering must be removed to avoid signs of corrosion.
Aufgabe der vorliegenden Erfindung ist die Entwicklung einer verbesserten Möglichkeit zur Herstellung der Lötverbindungen zwischen Dachrinnenteilen in ihrem Oberlappungsbereich. The object of the present invention is to develop an improved way of producing the soldered connections between gutter parts in their upper lap area.
Die Lösung dieser Aufgabe besteht darin, daß zwischen den sich überlappenden Dachrinnenteilen ein Lot deponiert, vorzugsweise jedoch ein Lotband eingelegt und anschließend die Dachrinnenteile im Oberlappungsbereich entlang ihrer Profillinie,wenigstens vom Bereich des Wulstes bis zum Wasserfalz, mechanisch aufeinandergepreßt und im Oberlappungsbereich erwärmt werden.The solution to this problem is that a solder is deposited between the overlapping gutter parts, but preferably a soldering tape is inserted and then the gutter parts are mechanically pressed together in the upper lap area along their profile line, at least from the area of the bead to the water fold, and heated in the upper lap area.
809885/0182809885/0182
Die Vorrichtung zur Durchführung dieses Verfahrens besteht aus zwei gegeneinander preßbaren Spannbacken, deren dem Profil der Dachrinnenteile im Überlappungsbereich angepaßte Spannflächen in der Preßstellung parallel zueinander verlaufen.The device for carrying out this process consists of two clamping jaws that can be pressed against one another, their clamping surfaces, adapted to the profile of the gutter parts in the overlapping area, in the pressing position run parallel to each other.
Die innere Spannbacke ist schwenkbar mit einer Spindel verbunden, die in einem mit der äußeren Spannbacke verbundenen, höhenverstellbaren Spannbügel gelagert ist.The inner jaw is pivotally connected to a spindle which is in one with the outer jaw connected, height-adjustable clamp is mounted.
Im Rahmen der besonderen Ausgestaltung der Vorrichtung ist die innere Spannbacke quer zur Längsrichtung der Dachrinnenteile verschieblich an der Spindel angeordnet, so daß sich ihr Druckpunkt in jeder Höhe des Spannbügels selbst einstellt.In the context of the special embodiment of the device, the inner clamping jaw is transverse to the longitudinal direction of the Gutter parts arranged displaceably on the spindle, so that their pressure point is at every height of the clamping bracket self adjusts.
Bei einer anderen Ausführungsform der Spannvorrichtung ist die innere Spannbacke einseitig schwenkbar an der äußeren Spannbacke gelagert und in Spannstellung mit der äußeren Spannbacke über Spannelemente verspannbar.In another embodiment of the clamping device the inner clamping jaw is mounted on the outer clamping jaw so that it can pivot on one side and is also in the clamping position the outer clamping jaw can be clamped using clamping elements.
Um eine gute Wärmeleitung zu gewährleisten, ist wenigstens die Spannfläche der inneren Spannbacke kammartig gestaltet. In order to ensure good heat conduction, at least the clamping surface of the inner clamping jaw is designed like a comb.
Ein weiterer Vorteil für das Flammlöten ergibt sich, wenn im Bereich der Mitte der oberen Spannbacke ein Gasbrenner halbkreisförmig schwenkbar gelagert ist. Der Gasbrenner kann wechselseitig angebracht werden.Another advantage for flame soldering is obtained when a clamp is placed in the middle of the upper jaw Gas burner is pivotally mounted in a semicircle. The gas burner can be attached alternately.
Die Erwärmung des Oberlappungsbereichs erfolgt bei Anwendung des Flammlötens dadurch, daß die Flamme unmittelbar auf das Dachrinnenmaterial oder mittelbar,auf die innere und/oder äußere ^Spannbacke gerichtet ist. :~y :i When flame brazing is used, the upper lap area is heated by directing the flame directly onto the gutter material or indirectly onto the inner and / or outer clamping jaw. : ~ y: i
809885/0182809885/0182
ORJGJNALORJGJNAL
Es ist aber auch möglich, eine oder beide Spannbacken elektrisch aufheizbar zu gestalten.But it is also possible to make one or both clamping jaws electrically heatable.
Die in den Zeichnungen beispielhaft dargestellte erfindungsgemäße Vorrichtung wird im folgenden näher beschrieben:The device according to the invention shown by way of example in the drawings will be described in greater detail below described:
In Fig. 1 ist die perspektivische Ansicht einer Vorrichtung zur Herstellung der Lötverbindung von halbrunden Dachrinnenteilen dargestellt. Die im Überlappungsbereich der Dachrinnenteile, die innenliegende Dachrinne erfassende, eine Erhöhung 1 zur Wasserfalzseite aufweisende Spannbacke 2 ist an der Spindel 3 schwenkbar und quer zur Längsrichtung der Dachrinnenteile verschieblich in dem Langloch 4 mit Hilfe des Kugelgelenks 5 gelagert. Die Spindel 3 ist in dem Spannbügel 6 drehbar gelagert. Der Spannbügel 6 ist auf einem mit der äußeren Spannbacke fest verbundenen Führungsteil 8 verschiebbar angeordnet. In der Mitte der inneren Spannbacke 1 ist der Gasbrenner 9, dem über die Leitung 10 Gas zugeführt wird, schwenkbar angelenkt. Die Spannflächen 11, 12 der Spannbacken 2,7 verlaufen in Spannstellung parallel.In Fig. 1 is a perspective view of a device for producing the soldered connection of semicircular Gutter parts shown. The in the overlap area of the gutter parts, the inner gutter grasping, an elevation 1 to the water fold side having clamping jaw 2 is pivotable on the spindle 3 and transversely to The longitudinal direction of the gutter parts is mounted displaceably in the elongated hole 4 with the aid of the ball joint 5. the The spindle 3 is rotatably mounted in the clamping bracket 6. The clamping bracket 6 is on one with the outer clamping jaw firmly connected guide part 8 arranged displaceably. In the middle of the inner clamping jaw 1 is the gas burner 9, which is supplied via the line 10 gas, pivotably articulated. The clamping surfaces 11, 12 of the clamping jaws 2.7 run parallel in the clamping position.
Die Fig. 2 zeigt eine weitere Ausführungsform der erfindungsgemäßen Vorrichtung, bestehend aus der die äußere Dachrinne im Oberlappungsbereich der Dachrinnenteile fassenden Spannbacke 13 und der schwenkbar an dieser einseitig angelenkten, die innere Dachrinne im Oberlappungsbereich fassenden Spannbacke 14, die mittels eines Kniehebelverschlusses 15 gegen die äußere Spannbacke 13 spannbar ist, indem der Bolzen 16 über den Hebel 17 hinter das gabelförmige Element 18 der äußeren Spannbacke 13 greift. Die Spannflächen 19, 20 der Spannbacken 13, 14 sind kammartig ausgebildet.Fig. 2 shows a further embodiment of the device according to the invention, consisting of the the outer gutter in the overlap area of the gutter parts gripping clamping jaw 13 and the pivotable on this one-sided articulated, the inner gutter in the upper lap area grasping clamping jaw 14, the can be clamped against the outer clamping jaw 13 by means of a toggle lever lock 15 by the bolt 16 over the lever 17 engages behind the fork-shaped element 18 of the outer clamping jaw 13. The clamping surfaces 19, 20 the clamping jaws 13, 14 are designed like a comb.
809885/0182809885/0182
Die mit der Erfindung erzielten Vorteile bestehen darin, daß eine einfachere Handhabung, sicherere Lötverbindung durch größere Lötnahtbreite und -länge, verbesserte Wirtschaftlichkeit durch Lotersparnis sowie 50 %ige Zeiteinsparung und höhere Sicherheit für den Handwerker gewährleistet sind.The advantages achieved by the invention are that easier handling, more secure soldered connection due to larger solder seam width and length, improved economy through solder savings as well as 50% Time savings and higher security for the craftsman are guaranteed.
809885/0182809885/0182
Claims (8)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2732370A DE2732370C3 (en) | 1977-07-18 | 1977-07-18 | Device for producing a soldered connection between overlapping ends of gutter parts |
| EP78200003A EP0000591B1 (en) | 1977-07-18 | 1978-06-01 | Apparatus to form a soldered joint between overlapping roof-gutter sections |
| DE7878200003T DE2860214D1 (en) | 1977-07-18 | 1978-06-01 | Apparatus to form a soldered joint between overlapping roof-gutter sections |
| DK319278A DK319278A (en) | 1977-07-18 | 1978-07-17 | PROCEDURE AND APPARATUS FOR PREPARING A SOLDERING BETWEEN ANY OVERLAPPING ROOF |
| IT25772/78A IT1097521B (en) | 1977-07-18 | 1978-07-17 | PROCEDURE AND DEVICE FOR FORMING A WELDED JOINT BETWEEN PARTS OF EAVES THAT ARE PARTIALLY OVERLAPPING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2732370A DE2732370C3 (en) | 1977-07-18 | 1977-07-18 | Device for producing a soldered connection between overlapping ends of gutter parts |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2732370A1 true DE2732370A1 (en) | 1979-02-01 |
| DE2732370B2 DE2732370B2 (en) | 1979-05-31 |
| DE2732370C3 DE2732370C3 (en) | 1980-01-10 |
Family
ID=6014185
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2732370A Expired DE2732370C3 (en) | 1977-07-18 | 1977-07-18 | Device for producing a soldered connection between overlapping ends of gutter parts |
| DE7878200003T Expired DE2860214D1 (en) | 1977-07-18 | 1978-06-01 | Apparatus to form a soldered joint between overlapping roof-gutter sections |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE7878200003T Expired DE2860214D1 (en) | 1977-07-18 | 1978-06-01 | Apparatus to form a soldered joint between overlapping roof-gutter sections |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0000591B1 (en) |
| DE (2) | DE2732370C3 (en) |
| DK (1) | DK319278A (en) |
| IT (1) | IT1097521B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3802882C1 (en) * | 1988-02-01 | 1989-12-28 | Johann 8301 Bruckberg De Wick | Brazing-aid and repair device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE426483C (en) * | 1925-07-16 | 1926-03-12 | Hermann Vieser O | Device for soldering together individual pieces of gutter on the gutter tree |
| US1924799A (en) * | 1932-09-14 | 1933-08-29 | Arthur M Moore | Eaves-trough clamping tool |
| US2166998A (en) * | 1938-08-02 | 1939-07-25 | Westinghouse Electric & Mfg Co | Method of brazing turbine blades |
| US2216073A (en) * | 1939-05-17 | 1940-09-24 | Wilbur E Ferrall | Clamp |
| US2718863A (en) * | 1954-10-27 | 1955-09-27 | Ertman Louis | Gutter clamp |
| GB1367899A (en) * | 1972-01-26 | 1974-09-25 | Science Res Council | Soldering and desoldering arrangements |
-
1977
- 1977-07-18 DE DE2732370A patent/DE2732370C3/en not_active Expired
-
1978
- 1978-06-01 DE DE7878200003T patent/DE2860214D1/en not_active Expired
- 1978-06-01 EP EP78200003A patent/EP0000591B1/en not_active Expired
- 1978-07-17 DK DK319278A patent/DK319278A/en unknown
- 1978-07-17 IT IT25772/78A patent/IT1097521B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3802882C1 (en) * | 1988-02-01 | 1989-12-28 | Johann 8301 Bruckberg De Wick | Brazing-aid and repair device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0000591A1 (en) | 1979-02-07 |
| IT1097521B (en) | 1985-08-31 |
| DK319278A (en) | 1979-01-19 |
| EP0000591B1 (en) | 1980-10-15 |
| IT7825772A0 (en) | 1978-07-17 |
| DE2860214D1 (en) | 1981-01-22 |
| DE2732370B2 (en) | 1979-05-31 |
| DE2732370C3 (en) | 1980-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2559671C2 (en) | Device for semi-automatic or fully automatic electrical resistance longitudinal seam-pinch seam welding of can bodies | |
| DE1627530A1 (en) | Welding additives | |
| DE2732370A1 (en) | METHOD AND DEVICE FOR PRODUCING A SOLDERED CONNECTION BETWEEN OVERLAPPING GUTTER PARTS | |
| EP2225068A1 (en) | Method and device for the marginal connection of sheet metals using a connecting device for laser optics | |
| DE4236171C2 (en) | Device and method for welding endlessly joined metal strips | |
| CH678538A5 (en) | Hand arc welding of rail line butts - butting ends are cut with vertical ends facing each other and are preheated | |
| DE750192C (en) | Welding process | |
| DE3025199C2 (en) | Method and device for producing brazed welded joints of thin sheet metal parts, in particular body parts of motor vehicles | |
| EP0826439B1 (en) | Method for bending a tube, device for carrying-out the method as well as a corner piece manufactured by this method | |
| DE3034243A1 (en) | Cold pressure butt-welding machine - with flash-removal shears on welding clamps | |
| DE2212013A1 (en) | Device for the automatic removal of the external upsetting ridge of butt-welded metal and plastic connections | |
| DE3129190C2 (en) | ||
| DE3929770C2 (en) | Method and device for producing a bellows | |
| DE877097C (en) | Process of connecting overlapping, cold-weldable metal parts by cold pressure welding | |
| DE3513090A1 (en) | Method of repairing the worn ends of scrapers and end wearing piece for carrying out the method | |
| DE2506062A1 (en) | METHOD AND DEVICE FOR ELECTRIC WELDING OF PIPE-SHAPED PARTS WITH PERFORATED PARTS, IN PARTICULAR FOR THE PRODUCTION OF HEAT EXCHANGERS | |
| DE3707328C2 (en) | ||
| DE195054C (en) | ||
| DE1515222C (en) | Method for joining metal sheets by electrical resistance welding | |
| DE813625C (en) | Process for autogenous pressure welding of hollow bodies | |
| DE2607970C3 (en) | Device and method for soldering thin-walled pipes | |
| DE2438990A1 (en) | Closing appliance for pre-formed chain links - closing tools swivel on displaceable carriages | |
| DE627629C (en) | Tool for making pipe branches to be welded together with a connecting pipe | |
| DE531398C (en) | Stapling pliers | |
| AT279702B (en) | Welding device for welding thermoplastics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |