PIGGYBACK HEAT EXCHANGER FOR DOME PRESSES

摘要

"PIGGYBACK" HEAT EXCHANGER FOR DOME PRESSES A simple inexpensive modification of existing tire molds used in old steam dome vulcanizing presses provides remarkable versatility and permits curing of truck and farm tractor tires at higher temperatures with higher internal water pressures to reduce curing times 5 to 10% or more while improving tire quality. A thin, flat heat exchanger with outstanding heat transfer characteristics is readily provided on each mold half by welding a flat outer disc and spacers to the mold to form an annular steam chamber of narrow cross section in direct communication with the outer mold face and the vent passages.