Reflow welding process simulation model correction method based on measured temperature data

• Main Authors: CHEN CAI, ZHENG YI, PAN KAILIN, GONG YUBING, CHE FEI, ZHOU HONGDA, YIN YUTIAN
• Format: Patent
• Language: Chinese; English
• Published: 06.03.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a reflow welding process simulation model correction method based on measured temperature data. By analyzing the standard deviation between the actually measured temperature curve data and the correspondingly simulated temperature curve data, a numerical simulation correction model which takes the minimization of the standard deviation between the node temperatures corresponding to the actually measured curve and the simulation curve as an optimization target and takes the temperature of the temperature zone and the convective heat transfer coefficient as optimization variables is established. The model is optimized by adopting a response surface method and a multi-objective genetic optimization algorithm method, so that the result of the numerical simulation modelis consistent with the actually measured temperature, the corrected numerical simulation model is obtained, and the accuracy of subsequent simulation prediction can be improved through feedback adjustment of one-time physical