Custom Lead Free Wave Soldering Machine For SMT Assembly Line

Custom Lead Free Wave Soldering Machine For SMT Assembly Line

Custom Lead Free Wave Soldering Machine For SMT Assembly Line RF-500A

Basic Informattion about Wave Soldering Machine

1. For a single wave, there is only one wave, called advection wave. For double waves, the first wave is called a turbulent wave, and the second wave is called a advection wave (smooth wave).
2. The role of spoiler wave: SMT component soldering and prevention of missing soldering, it ensures proper distribution of solder through the circuit board. The solder penetrates through the slit at a relatively high speed, thereby penetrating into a narrow gap. The spray direction is the same as the direction of the circuit board.
3. For SMT components, the spoiler wave can basically complete the welding. But for through-hole components, the spoiler wave itself cannot properly solder the components.
4. It leaves unevenness and excess solder on the solder joints, so a second wave---advection wave is needed.

SMT Machine Wave Soldering Machine

Specifications of wave solder machine RF-450A

Pictures showing of wave solder machine

Set the welding parameters of wave soldering equipment

• Flux flow rate: According to the condition of the flux contacting the bottom of the PCB. The flux is required to be evenly coated on the bottom of the printed circuit board
• Starting from the through hole on the PCB, a small amount of flux should penetrate from the through hole to the pad on the surface of the through hole, but not through
• Preheating temperature: set according to the actual situation of the preheating zone of the microwave oven (the actual temperature of the upper surface of the PCB is generally 90-130°C, the temperature of the thick plate is the upper limit of the assembly board with more SMD components, and the temperature rise slope is less than or equal to 2°C/S;
• Conveyor belt speed: according to different wave soldering machines and PCB settings (usually 0.8-1.60m/min); solder temperature: (must be the actual peak temperature displayed on the instrument (SN-Ag-Cu 260±5℃) , SN-Cu 265±5℃) temperature. Because the temperature sensor is in the tin bath, the temperature of the instrument or LCD is about 3°C ​​higher than the actual peak temperature;
• Wave height measurement: when it exceeds the bottom of the PCB, adjust to 1/2~2/3 of the PCB thickness;
• Welding angle: drive inclination: 4.5-5.5°; welding time: generally 3-4 seconds.