Method and device for electromagnetic spot welding of moulded parts

A device for electromagnetic spot welding of moulded parts comprising an induction-sensitive component incorporated in a heat meltable coupling means, said device comprising:

• a pressurizing body;
• and
• first displacing means configured for moving a pressurizing surface of the pressurizing body against the moulded parts or vice versa to join contact surfaces of the moulded parts to be fused by welding under pressure;
• wherein the pressurizing body further comprises:
• an inductor provided in the pressurizing body and configured to generate an electromagnetic field in at least the contact surfaces of the moulded parts thereby heat melting the coupling means by heating the induction-sensitive component;
• shielding provided in the pressurizing body around at least a part of the inductor configured to protect against overheating;
• and
• a heat sink provided in between the inductor and the pressurizing surface in direct contact with the inductor and the pressurizing surface, wherein additional heat sink material is disposed between parts of the inductor;
• wherein the inductor comprises cooling means configured for cooling the inductor, the shielding and the heat sink.