SAETT ATT TILLVERKA EN VAERMEVAEXLARE FOER ANVAENDNING VID EN KORROSIV MILJOE.

摘要

Heat exchanger consists of circulation tubes (16) having plate-like fins (14) attached to the outer surface. The region of the fins in contact with the tubes is planar and at right angles to the axis of the tubes. The holes (18) provided in the fins for accommodating the tubes and securing them are formed by fine-punching. The contact surfaces of the holes against the tubes are parallel with the tubes axis along the axial extension of the holes.