Enhancing the soldering process
Preheating is used for heating the board to enhance the solder process. It helps in activating the flux. This method assists solder pull through on multi-layer PCBs and components with significant ground planes. It also reduces the risk of component thermal shock.
With the introduction of lead free solders, it has become almost essential to have some form of pre-heating. Closed-loop control can be used for precise and reliable heating and provides added confidence to your process.
Selective Hot Nitrogen
By heating a flow of Nitrogen, the soldering systems are able to preheat a localised area of the PCB whilst maintaining the inert atmosphere.
Top Side Infrared Preheat
By using fast response infrared lamps Pillarhouse has the ability to preheat the board: before fluxing, during fluxing and/or after fluxing.
Bottom Side Infrared Preheat
By using fast response infrared lamps Pillarhouse has the ability to preheat the board after fluxing.
Bottom Side Ring Infrared Preheat
By using a fast response ring infrared lamp Pillarhouse has the ability to preheat the board during the soldering cycle.
Top and Bottom Side Infrared Preheat
Allows simultaneous heating of the top and bottom side where the application dictates for complex or heavy multi-layer boards.
This additional source of preheating offers the ability to ‘soak’ PCBs for prolonged periods with minimal risk of scorching and further reducing the possibility of thermal shock to components. Convection preheat can be particularly beneficial when processing large multi-layer PCBs when cycle time is not critical e.g. back planes, aerospace applications etc.
Pyrometer based closed loop control system.
- Adjustable position to monitor PCB, or specified area (component).
- Monitors target temperature and adjusts the operating power automatically.
- Applies to both top side & bottom side preheat systems.
- Real-time display of target temperature.
- Uses operator set values for power and exposure time.
- Applies to both top side and bottom side preheat systems.