METHOD FOR JOINING A DEVICE TO AN OBJECT WITH THE AID OF ULTRASONIC VIBRATION ENERGY AND DEVICE AND INSTALLATION SUITABLE FOR THE METHOD

摘要

Disclosed is a method for joining a device (1) to an object (2) with the aid of a combination of ultrasonic vibration energy and induction heating, wherein the device (1) comprises a portion (1.1) of a thermoplastic polymer and a susceptor additive wherein this portion (1.1) is at least partly liquefied or plasticized through the ultrasonic vibration energy in combination with the induction heating and wherein the joining comprises establishing a connection between the device (1) and the object (2) which connection is at least one of a positive fit connection, a weld, a press fit connection, and an adhesive connection. Therein the induction heating on the one hand is applied for rendering the named device portion (1.1) suitable for absorption of ultrasonic vibration energy or better suitable for such absorption than other device portions by raising its temperature, in particular by raising its temperature above the glass transition temperature of the polymer. The ultrasonic vibration energy on the other hand is used for liquefying or at least plasticizing the thermoplastic polymer of the named device portion (1.1).