119 FREQUENCY CHARACTERISTICS OF ULTRASONIC PLASTIC WELDING : 27kHz TO 180kHz ULTRASONIC PLASTIC WELDING SYSTEMS(O.S.1 Usage of Sound Energy)

概要

論文の詳細を見る
Welding characteristics and temperature rises in plastic welding part over frequency range of 27kHz to 180kHz were studied. Using 27kHz, 40kHz, 67kHz, 94, 150 and 180kHz ultrasonic plastic welding systems, weld strengths and temperature rises at welding surfaces of 1.0-mm-thick polypropylene and polymethyl methacrylate plates were measured using thermo-couples inserted between plate specimens and also temperature rise distributions in cross sections of the lapped plate specimens are measured using a thermotracer. The vibration systems used for ultrasonic plastic welding consist of a bolt-clamped Langevin type longitudinal vibration source using four piezoelectric ceramic (PZT), a stepped horn and a catenoidal horn with 4 to 8-mm-diameter welding tip. Using higher frequency system, temperature rise measured at the welding part are higher. Maximum temperature rise measured using thermocouples and a thermo tracer was over 330℃.
一般社団法人日本機械学会の論文
2005-05-31