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
- 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).
- 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.
- 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.
- 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
Model | RF-450A |
Conveyor System |
PCB Width ( L x W ) | 350 MM |
Componet Clearance (mm ) | 130 MM |
Conveyor Height | 750 MM |
Conveyor Width Adjustment | Manual |
Conveyor Direction | Optional |
Conveyor Angle | 4 ~ 6 C |
General |
Power | 380V 50HZ / 220V 60HZ |
Weight | 2000 kg |
Dimension ( L*W*H ) | 4800*1400*1700 |
Spraying System |
Transmission Method | Air cylinder |
Spraying Pressure | 0.25MPa ~ 0.4MPa |
Exhaust Method | Upper Exhaust |
Exhaust Capacity | 25M3/min |
Flux Flow | Flux Flow meter |
Auto Flux Feeding | Optional |
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.