Process Technology Adapted to The Rise of Wave Soldering Machine
Wave soldering machine is to make the welding surface of the plug-in board directly contact with high-temperature liquid tin to achieve the purpose of welding. The high-temperature liquid tin maintains an inclined surface, and a special device causes the liquid tin to form a wave-like phenomenon, so it is called "wave soldering". The main material is solder bars.
Wave soldering machine process: insert the component into the corresponding component hole → pre-coat flux → preheat (temperature 90-100℃, length 1-1.2m) → wave soldering (220-240℃) cooling → cut off excess insert legs → check .
Wave soldering machine has a new welding process with the enhancement of people's awareness of environmental protection. In the past, tin-lead alloys were used, but lead is a heavy metal that can cause great harm to the human body. Therefore, a lead-free process was promoted, using *tin-silver-copper alloy* and special flux, and the welding temperature required a higher preheating temperature.
1. Solder recovery and regeneration.
The use of solder recycling system can maximize cost savings.
2. Control of lead-free process.
With more expensive solder, fewer solder defects are expected. One of the main causes of soldering defects is insufficient heating of printed circuit board (PCB) components during the preheating phase.
Preheating requirements are more stringent in lead-free applications because it requires higher temperatures.
❙ Wave Soldering Machine Video
