The Rank Of Piezo Cylinder In Consumer's Market

                                 The Rank Of Piezo Cylinder In Consumer's Market

   Ultrasonic non-metallic welding studies 12μm polyethylene terephthalate (PET) / 30μm polyethylene (PE) film , piezoelectric components for car parking sensors used in ultrasonic welding process was studied and found that the welding amplitude of 2-10μm, on the welded joint heat-bonding strength is not Large, piezo ceramic cylinder in series for defect detection in the welding amplitude 4-7μm welded joints have emerged the maximum heat seal strength. The heat sealing strength of the welded joints showed the first increasing and then decreasing variation along with the extension of the welding time and the welding pressure. The results show that the degree of crystallinity of the joint affects the heat-seal strength of the welded joint of PET / PE film. The degree of piezo ceramic fabrication crystal in the welded area varies with the welding time, the welding amplitude,piezo ceramic fabrication price in the welding pressure Increasing first and then increasing, the heat sealing strength of welded joints first increased and then decreased. Studying the application of ultrasonic welding in automotive sensor package.This article describes how to realize the sensor package of automobile by the choice of materials and welding methods, the design of the welding mouth, tooling design and manufacturing process. The application of piezoelectric ceramic disc transducer for ultrasonic welding in connectors was studied. Briefly introduced the principle of piezoelectric energy harvesting for ultrasonic welding, combined with the surface design methods, design points, as well as the connector in the specific application and use of the range. Northwestern Polytechnical University studied the high resistance CdZnTe semiconductor (referred to as CZT) contact electrode and lead ultrasonic welding. The results show that the CZT wafer has high ultrasonic welding rate between gold electrode and outer lead after mechanical polishing surface treatment, and the optimal electrode thickness is 180nm. In addition, to determine the CZT contact electrode preparation process, the wedge pressure to become CZT contact electrode and lead ultrasonic welding quality of the main factors, the welding power is a secondary factor.