Abstract: A method for producing an induction connection sleeve includes laying up a first induction heating element in a first injection-mold half; laying up a second induction heating element in a second injection-mold half; mutually compressing the first and second injection-mold halves; injecting a thermoplastic plastics material into first and second molding cavities; opening the first and the second injection-mold halves; ejecting an internal part of a sleeve body having induction heating elements from one of the injection-mold halves; laying up the internal part of the sleeve body having the induction heating elements in a third injection-mold half; closing a third molding cavity; injecting a thermoplastic plastics material into the third molding cavity; opening the third molding cavity; and ejecting the finished induction connection sleeve.

Abstract: An induction connection sleeve for fusion joining of plastic pipes includes a sleeve body having a first and a second receiving portion for receiving first and second connection portions of the plastic pipes to be connected, a first induction heating element and a second induction heating element. The sleeve body includes an inner part, which inner part forms the two receiving portions and on which the induction heating elements are accommodated in such a way that the recesses of the induction heating elements are penetrated by the inner part and are flush at their outer lateral surfaces with the inner part in the area of the induction heating elements. The sleeve body further includes an outer part which is connected to the inner part in a bonded manner and surrounds the outer lateral surfaces of the induction heating elements.

Abstract: The invention relates to an induction connection sleeve (1) for fusion joining of plastic pipes (2, 3). The induction connection sleeve (1) comprises a sleeve body (9) having a first (5) and a second receiving portion (7) for receiving first (4) and second connection portions (6) of the plastic pipes (2, 3) to be connected, a first induction heating element (12) and a second induction heating element (13). The sleeve body (9) comprises an inner part (10), which inner part (10) forms the two receiving portions (5, 7) and on which the induction heating elements (12, 13) are accommodated in such a way that the recesses (16) of the induction heating elements (12) are penetrated by the inner part (10) and are flush at their outer lateral surfaces (14, 15) with the inner part (10) in the area of the induction heating elements (12, 13).