伝熱器管および伝熱器管の製造方法

摘要

The tube (1) has a continuously extending groove formed in a set of cases between adjacent inner ribs. Rib flanks and a rib tip are formed in the inner ribs. The rib tip comprises recurring elevations at regular intervals. The rib flanks of the inner ribs are raised in radial direction on a contour line, which is defined by a transitional edge of each rib flank to the rib tip such that that protuberances advancing out of the rib flanks are formed at the contour line in a region. An independent claim is also included for a method for producing a heat exchanger tube.