FIELD: process engineering.
SUBSTANCE: group of inventions can be used for condensation soldering. The machine (200) has at least one working chamber adapted to process the printed circuit board (45) and a circulation system (210) for a heat transfer medium with a condensate separator. The separator of the separated condensate contains a centrifuge, for example, in the form of a disc separator and a condensing device (90A) for the heat transfer medium. A condenser (90A) for the heat transfer medium can be built into the centrifuge (90B, 300). In the process of soldering, vaporous perfluoropolyethers are introduced into the hermetically sealed first working chamber (40) and the printed circuit board (45) is heated by condensation of the vaporous perfluoropolyether. Condensed and vaporous perfluoropolyethers containing impurities are sucked away. The extracted material (390) is fed into the separated condensate trap. Condensation and separation of perfluoropolyether from impurities is carried out using the separated condensate trap (90). Purified perfluoropolyether (335) is used for soldering for the next PCB (45A).
EFFECT: group of inventions ensures effective condensation soldering.
23 cl, 3 dwg
