This equipment utilizes electromagnetic energy to generate heat directly within thermoplastic materials, fusing them together. A high-frequency alternating current is passed through a specialized electrode, creating an oscillating electric field that causes molecular vibrations within the plastic. This friction generates heat, softening the material and allowing the parts to be joined under pressure. Common applications include sealing vinyl upholstery, creating medical devices, and manufacturing various plastic products.
The rapid heating and precise control offered by this technology result in strong, hermetically sealed joints with minimal material distortion. Compared to traditional methods like heat sealing or ultrasonic welding, it often provides faster cycle times and reduced energy consumption. Its development stemmed from the need for efficient and reliable joining techniques for emerging plastics in the mid-20th century and has since become indispensable in numerous industries.
