Ultrasonic bonding or welding of semi-finished prod. - using e.g. solder foils or plastic parts in continuous strip form

摘要

(A) in the ultrasonic bonding and/or welding of pts., at least one of the pts. is a large surface area semi-finished product comprising several pts. in strip and/or interlinked form, the individual pts. being isolated by the ultrasound during bonding and/or welding. (B) Also claimed are (a) a semi-finished prod. of solder foil for use in the process, the solder foil comprising strips (10,20) of predetermined width (B) and lines of weakness of spacing (A); and (b) a semi-finished plastics prod. for use in the process, comprising a strip of interlinked plastics parts with lines of weakness. USE/ADDVANTAGE - The process is useful for welding solder foils to contact pieces in switchgear and for joining injection moulded plastics pts.. It facilitates precise handling and positioning of the pts..