| 摘要 |
1. Heat exchanger made of plastics, consisting of an extruded lamellar exchanger body (1) of plastics material which is made up of two parallel planar outer walls (2, 3) and a plurality of crosspieces (4) connecting them, whilst between the outer walls (2, 3) and the crosspieces (4) are formed a plurality of parallel, continuous throughflow channels (5) terminating at the end faces of the exchanger body, and of two collecting pipes (6) of plastics material which are connected to the exchanger body at the end faces thereof by means of a layer (9) of plastics enveloping and engaging over the exchanger body, and into which the throughflow channels (5) open, characterised in that the collecting pipes (6) are each composed of at least two longitudinally disposed segments (7, 8) onto which the enveloping layer (9) is extruded by means of a moulding tool which is moved relative to the collecting pipe (6). |
