Study on Optimization of Furnace Temperature Curve of Rewelding Furnace

Wenbo Qin ； Liang He ； Rui Li

《International Core Journal of Engineering》 7卷1期 (2021/01) Pp. 102-107

https://doi.org/10.6919/ICJE.202101_7(1).0013

摘要

In the production of electronic products, how to optimize the furnace temperature curve of the rewelding furnace has become a hot issue in the industry. For the production process, we first set up the differential equations under different temperatures in different temperature zones according to the settings of different temperatures in different temperature zones of the reflow oven and use particle swarm optimization algorithm to obtain the thermal conductivity of the circuit board in the heating process and the thermal conductivity of the circuit board in the cooling process k_0. Finally, we obtained the temperature of small area 3, 6, 7 and the right margin of zone 8. On this basis, aiming at the specific temperature conditions, we first establish the constraint equations, and then, under the condition of constraints, we use Monte Carlo simulation to get the value of the maximum velocity of the conveyor belt transmission element.

關鍵字

Heat conduction model ； Particle swarm optimization ； Monte Carlo simulation

參考文獻

Gao jingang, Optimization and control of reflow curve in SMT production line [D].Shanghai Jiaotong University.

Wang jianhua, Lu hao, The latest development of welding prediction theory [C]. Proceedings of the 8th National Welding conference (3).

Huang bingyuan, SMT Modeling and Simulation of reflow soldering temperature field [D]. Tianjin University, 2015.