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Common plastic variety identification method Polypropylene PP is easy to melt and drip, less yellow smoke on the yellow, continue to burn oil Polyethylene PE is easy to melt and drip, and yellow and blue continue to burn paraffin burning smell PVC is difficult to soften, yellow, green, smok

Ultrasonic welding is normally divided into two modes: time mode and energy mode.Time mode of ultrasonic weldingThere are several control modes for welding equipment operation. The simplest and most common mode is the time mode, ie the ultrasonic energy acts for a predetermined time without regard t

Ultrasonic probe ultrasonic flaw detection principle and sensor test and designUltrasonic transducers, horn and vocal sleeves are devices that convert electrical energy into vibration. To understand the principle of operation, a comparison can be made between an ultrasonic welder and a car.The