Verfahren zum Trennen eines geklebten Körpers

摘要

A method of separating an adhesive-bonded body is provided, by which a pair of pieces bonded together by using an adhesive can be easily securely separated from each other, wherein the adhesive has excellent adhesive force without being influenced by environmental temperature, excellent storage stability and wide scope of selection of the piece to be bonded. An adhesive-bonded body 1 includes a pair of pieces 2 bonded together and an adhesive layer 4 . The adhesive layer 4 bonds the pair of pieces 2 to each other. Ultrasonic vibration is applied to the adhesive-bonded body 1 which is put between a tool horn 6 and an anvil 7 of an ultrasonic vibration applying device 3 . The ultrasonic vibration is generated by applying a voltage to a piezoelectric vibrator 5 and vibrates the tool horn 6 . The tool horn 6 vibrates ultrasonically together with one piece 2 . The pair of the pieces 2 bonded together shifts relatively each other due to the ultrasonic vibration. The adhesive layer 4 is heated due to the ultrasonic vibration, so that the strength of the adhesive layer 4 is decreased. The pair of pieces 2 bonded together of the adhesive-bonded body 1 , which includes the adhesive layer 4 having the decreased strength due to the ultrasonic vibration, is separated into the respective separated pieces.