Inventors:
Joseph A. Godrick - Wellesley MA
Joseph L. Sliney - Lexington MA
Assignee:
Kennecott Copper Corporation - New York NY
International Classification:
B21D 3900, B23K 3102, F24J 302
Abstract:
A method of fabricating a solar heating unit having tubular conduits for containing high pressure fluids is disclosed. The method comprises the steps of forming a thin sheet of soft metal, preferably a fully annealed copper sheet, by applying sufficient temperature and pressure to creep or thermally form the sheet in a grooved plate using an assembly of the fluid conduits having a paste solder applied thereon. The solder is melted during the creep forming step to form a good metallurgical bond between the sheet and the conduits.