Ultrasonic welding application method

Update:19 Jan 2019

First, the welding method: The ultrasonic welding head […]

First, the welding method: The ultrasonic welding head with ultra-high frequency vibration under the moderate pressure, the joint surface of the two plastics generates frictional heat and instantaneous fusion bonding, the welding strength can be comparable with the body, using the appropriate workpiece and reasonable interface Designed to achieve watertight and airtight, and to avoid the inconvenience caused by the use of auxiliary materials, to achieve efficient and clean welding.
Second, the rivet welding method: Ultrasonic ultra-high frequency vibration welding head, pressing the tip of the plastic product, so that it instantly melts into a rivet shape, so that the materials of different materials are mechanically riveted together.
3. Embedding: By means of the trajectory of the welding head and appropriate pressure, metal parts (such as nuts, screws, etc.) are squeezed into the plastic hole and fixed at a certain depth. After completion, the tension and torque can be comparable. The strength of the traditional mold forming can eliminate the disadvantages of the injection mold being damaged and the injection slow.
4. Molding: This method is similar to the rivet welding method in that a concave horn is pressed against the outer ring of the plastic product, and the ultrasonic wave is ultrasonically shaped after the ultrasonic wave is ultrasonically welded, and the metal object is coated and fixed. The appearance is smooth and beautiful, and this method is mostly used in the fixed forming of electronic type and horn, and the fixing of lenses of cosmetics.
V. Spot welding: A. Weld the two plastic points without pre-designing the welding wire to achieve the purpose of welding. B. For relatively large workpieces, it is not easy to design the workpiece of the welding wire for point welding, and the welding effect can be achieved, and multiple points can be spot welded at the same time. Sixth, cutting and sealing: Using the principle of ultrasonic vibration and vibration, the chemical fiber fabric is cut, and its advantages are smooth and not cracked or drawn.
The principle of ultrasonic metal welding is a special method of connecting the same metal or dissimilar metals by using the mechanical vibration energy of ultrasonic frequency (more than 16KHz). When the metal is ultrasonically welded, neither the current is supplied to the workpiece nor the high-temperature heat source is applied to the workpiece, but the vibration energy of the frame is converted into frictional work, deformation energy and limited temperature rise between the workpieces under static pressure. The metallurgical bond between the joints is a solid state welding realized without the base material melting. Therefore, it effectively overcomes the phenomenon of splashing and oxidation generated during resistance welding. Ultrasonic metal welding machine can perform single point welding, multi-point welding and short strip welding on filament or sheet material of non-ferrous metals such as copper, silver, aluminum and nickel. Can be widely used in thyristor leads, fuse sheets, electrical leads, lithium battery pole pieces, tab welding.