1, fpc is a temperature control welding system for flexible printed circuit board with temperature feedback function.
2. The aluminum substrate dissipates heat quickly, which requires short time and high power welding. It can be insulated after welding.
3, according to the product situation, choose tin wire or solder paste welding.
The above three points can be solved by a constant temperature laser welding robot.
1. At present, the temperature of solder joint is controlled by closed loop, and the laser power output can be adjusted in real time according to the temperature change of solder joint during welding, so that welding can be completed at the most suitable temperature, and the quality of solder joint is higher;
2. Laser welding has no consumables, and the service life of laser is generally more than 20,000 hours;
3. Nowadays, laser welding can be customized automatically according to customers' requirements, which reduces the dependence on labor.
4. The most important thing is that the weldable spot of laser welding is very small. We measured that the minimum laser welding spot is 0.3 mm; Moreover, because laser welding belongs to non-contact welding, there is no mechanical stress on the device; The light spot can be adjusted according to the size of the solder joint and will not produce thermal effect on the area outside the welding; Laser welding is the best choice when the space is narrow and contact welding cannot be used.