The society pays more and more attention to the environmental protection and safety of commodities. Due to the adoption of ultrasonic technology, the product is clean, efficient, and firm, and the use of glue, screws, adhesives or other auxiliary products is exempted from the adjustment of social needs. It not only reduces the production cost, but also is widely used in the effective welding of ink cartridges, folders, business card holders, photo albums, half-circles, etc., which greatly enhances the competitiveness of enterprises in the market.