MICRO-MULTIPORT TUBING AND METHOD FOR MAKING SAME

摘要

Process for making micro-multiport tubing for use in automobile air conditioner heat exchangers whereby the tubing is a flat body with a row of side-by-side passageways, which are separated by upright extruded webs. Processing of this tubing involves extrusion, a straightening and cutting operation, assembly and furnace brazing of the condenser. The webs are extruded so that they have a reduced thickness at their centers. In response to successive cold working of the body, the webs are changed in shape to a more uniform thickness state.