Soldering torch

Soldering torch with a gas pressure cartridge in typical use. Soldering a copper pipe

A soldering torch is a further development of the blowtorch , the fuel here is usually a mixture of propane and butane . The gas mixture, which is usually fed in through a hose and regulated with a control valve , is fed via an injector into a wide brass pipe, the necessary combustion air flows through holes in the brass pipe ( Bernoulli principle ) and a flame forms at the outlet of the pipe and the mixture burns out Air and fuel off. The usable combustion temperature (working temperature) of the soldering torch is 800 to 900Degrees Celsius with large amounts of heat at the same time ; therefore, soldering torches are mainly used when brazing large workpieces. The ignition can be carried out by means of piezo ignition .

See also

• Blowtorch , small, handy, gasoline - or nowadays mostly propane - or butane-powered gas burner .
• Oxy-fuel welding , gas burner with supply of oxygen as an oxidizing agent to increase the combustion temperature .

literature

• Emil Greven: Technology. Textbook and workbook for specialist teaching in metalworking professions, Friedrich Vieweg & Sohn, Wiesbaden 1983, ISBN 978-3-528-04188-5 .
• Heinrich Bürgel: German exchange materials. Published by Julius Springer, Berlin 1937.
• Theodor Ricken: The welding of light metals. Springer Verlag Berlin Heidelberg GmbH, Berlin Heidelberg 1941.