SEMI-FINISHED GOOD FOR A SOLAR COLLECTOR, SOLAR COLLECTOR, AND METHOD FOR PRODUCING SAME

摘要

The invention relates to a semi-finished good (3) for a solar collector, a solar collector comprising such a semi-finished good, and a method for producing semi-finished goods. According to the invention, the semi-finished good comprises at least two material webs (16, 21), two of which have a meandering shape (trapezoidal profiles) and are placed into one another in such a way that ducts for a fluid are created therebetween. A supporting or insulating layer (17) (e.g. rigid foam) is integrally bonded to one of said material webs (16) from outside. According to the invention, the semi-finished good is produced in a continuous process, wherein the supporting and/or insulating material (17) is foamed between two material webs (15, 16). Together with another material web (21), the upper material web (16) forms ducts for a solar collector fluid as a result of a meandering profile form.