Plastic welding skills are needed in the production and processing of many products in daily necessities, and ultrasonic plastic welding skills have common advantages and are widely used. Ultrasonic welding skills used in daily necessities include photo frames, key buttons, plastic lighters, toothpick boxes, suitcases, hollow board boxes, jewelry boxes, cosmetic boxes, Christmas ornaments, hair ornaments, lunch boxes, inner loose boxes, seat sealed containers, etc. It has the best effect on daily necessities of plastic raw materials such as ABS, PP, PE, PC, PUC, PMMA, PS, PPS, PBT and PETG.