APPLYING ELECTRODES ON THE SURFACE OF PIEZOCERAMIC BODIES FOR PRODUCING CONVERTERS

摘要

In disk- or plate-shaped piezoceramic converters with an electrode (22, 29) on both sides, the connections to the electrodes being disposed only at one side, namely the upper side (13), the connetion of the electrode on the lower side (11) has to be guided around the peripheral surface of the converter to the contacting point (23) on the upper side. To achieve this, a metallization paste is applied onto the peripheral surface as peripheral contact (28). The transition between the upper side and the lower side on the peripheral surface by means of peripheral contact is a weak point in all known methods. According to the invention, it is proposed to produce a front surface (19) which is essentially rectiligne on its periphery (30) of the piezoceramic body (10) in order to provide a converter (100). In this way, the metallization paste, after having been applied on the upper side for forming the electrode and the contacting point, can flow downwards. Furthermore, the metallization paste is applied on the lower side (11) in at least one partial area (27) by displacing the piezoceramic body in the direction ot ist front face.