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• Ultrasonic welding machine transmitted ultrasonic energy through welding parts to welding area, local high temperature will happened due to high acoustic resistance between two welding interface places.
• Also, no enough time speading out heating energy timely because of poor parts thermal conductivity, heating energy gathered in welding area since could not spreading out timely, the two parts contact areas will welt rapidly, coupled with a certain pressure, it makes fusion to one unite.
• When ultrasonic stop function, and keep the pressure sustain to solidification molding, finally forming a strong molecular chain, which achieve the purpose of welding. The welding strength can close to raw material body strength.
