Insulator and method for its production

Abstract

Abstract A cylindrical supporting body (1) consisting of glass-fibre-reinforced plastic carries a screen (2) consisting of elastic material, for example of a silicon elastomer. The screen (2) consists of a plurality of turns (3) of a profiled strip (4) which is produced using the extrusion process and runs in a helical shape around the supporting body (1), its base surface (5) being bonded to the outer surface of said supporting body (1). The surface (6) of the profiled strip (4) has a projecting web (7). The edge surfaces (8a, 8b) of the profiled strip (4) run parallel and the second edge surface (8b) encloses an acute angle with the base surface (5) of the same. The edge surfaces (8b, 8a) on two successive turns abut against one another and are bonded at the joint (9) formed between them. During the production of the insulator, the profiled strip (4) is wound onto the rotating supporting body (1). Before it comes into contact with the external surface of the same, adhesive is applied (A) onto its base surface (5) after said base surface (5) has previously been prepared by scraping or heating (B). Adhesive is likewise applied onto one of the edge surfaces (8a). <IMAGE>

Inventors

• 👤 Fritz Korischum

Bibliographic Details