Abstract
Dip soldering process with a simple model has been studied using CFD. The horizontal movement of PCB and the variation of temperature field are considered in this study. Open source CFD software OpenFOAM is utilized to simulate two phase thermal-flow of air and solder with moving mesh. Relatively large movement of PCB is reproduced by using two types of mesh and mapping numerical results between two meshes. Natural convection in liquid solder is observed. Moving PCB changes the height of solder surface. The un-equivalent level of solder surface causes flow under the PCB.
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