The tin ball is transported from the tin ball box to the nozzle, and after melting by laser heating, it is ejected from the special nozzle and directly covered to the pad, without additional flux or other tools. Using tin ball jet welding, welding accuracy is high, for temperature requirements or soft plate connection welding area. In the whole process, the solder joint and the welding body are not in contact, which solves the electrostatic threat caused by contact in the welding process.

Laser tin-spraying welding system has the following characteristics:

1. Laser processing precision is high, small spot, processing time program control, precision is higher than the traditional process, suitable for small precision parts solder, solder workpiece is more sensitive to temperature.

2. Non-contact processing, non-contact welding caused by static electricity, can be processed in the conventional way is not easy to welding parts.

3. Small laser beam instead of soldering iron head, when there are other interference on the surface of the workpiece, it is also easy to process.

4. Local heating, small heat affected zone; No static electricity threat is generated.

5. Laser is a clean processing mode, simple maintenance, convenient operation. Repeated operation has good stability.

6. Six-axis working platform, equipped with synchronous CCD positioning and monitoring system, automatic clamping, automatic judgment of workpiece, can guarantee the welding accuracy and yield.

7. Laser tin-spraying welding system does not use flux and other tools to ensure the cleanliness of processing.

8. Fast heating speed and accurate positioning, can be completed within 0.2 seconds.

9. The minimum diameter of tin ball can be 50μm, suitable for high precision welding.

10. The yield of solder is higher than that of ordinary automatic solder machine.

11. With visual positioning system suitable for assembly line production.