Method of manufacturing flattened tubes for heat exchangers, apparatus and flattened tube

摘要

A continuous strip of sheet metal runs in the passage (49) between two contrary rotating embossing rollers (2,3) especially in the form of a drive counter roller and a beading embossing roller with protuberances on. The continuous metal strip is beaded on one side. A gap is produced between the beads. The machine contains a fixed (9) and a movable (8) housing. The fixed housing contains a counter embossing roller and a vertically spaced apart support shaft (5). The movable housing contains an embossing roller and a vertically spaced apart cam disc shaft (4). The movable housing inside the fixed housing is linearly moved by pre-set rotations of a cam disc (12,13) on the rotary, fixedly mounted support shaft.