Graded Cards Plastic Ultrasonic Welder Sealer DNA PSA Sports Grading Card Slabs Ultrasonic Welding Machine

Graded Cards Plastic Ultrasonic Welder Sealer DNA PSA Sports Grading Card Slabs Ultrasonic Welding Machine

The principle of ultrasonic instantaneous vibration is applied to cut chemical fiber fabrics, which has the advantages of smooth and clean cuts without cracking or wire drawing. High frequency waves and ultrasound are two different concepts. High frequency waves refer to electromagnetic waves with frequencies greater than 100 Khz, while ultrasound refers to sound waves with frequencies exceeding 20 kHz. The welding principle and fusion principle of high frequency waves are also different from ultrasonic waves. High frequency waves use high-frequency electromagnetic fields to cause intense collisions between molecules inside materials to generate high temperatures for welding and fusion purposes, while ultrasonic waves use the principle of frictional heat generation to generate a large amount of heat for welding and fusion purposes.

Graded Cards Plastic Ultrasonic Welder Sealer DNA PSA Sports Grading Card Slabs Ultrasonic Welding Machine

标签：DNA PSA Sports Grading Card Slabs Ultrasonic Welding Machine, Graded Cards Plastic Ultrasonic Welder Sealer