Method of connecting metal pipe to plate in solar collector has heat for weld provided by induction in fluid fed through pipe

摘要

The method of connecting a metal plate (2) to a pipe (4) uses soldering. The heat for soldering (5) can be provided by a fluid medium fed through the pipe. The fluid medium (6) can be gas and it can be heated by induction. the heat used is dependent on the materials of the pipe, plate and solder. There can be successive pipe sections of different materials to be welded.