convection oven overview
For high-volume commercial applications, the best reflow ovens take the form of long tunnels with conveyor belts carrying circuit boards. best reflow oven The circuit board can be placed in a small oven with a door for prototyping or hobby use. Multiple separately heated zones can independently adjust the temperature in commercial reflow continuous ovens. PCBs are processed at a controlled speed as they pass through the oven and each zone. To obtain specific time and temperature profiles, technicians change conveyor speeds and zone temperatures. The profile used can be changed according to the requirements of the circuit board currently being processed. The heat source in an infrared reflow oven is typically a ceramic infrared heater above and below the conveyor that radiates heat onto the circuit board. A convection oven heats the air in the chamber before it is used to transfer heat to the circuit board by convection and conduction. Airflow in the oven can be controlled with the