Patent ID: 6120585
Filing Date: 2000-09-19
Classification: B23K

Abstract:
A reflow soldering device for soldering a circuit substrate, comprising:a conveyor means for transferring the circuit substrate;a heating means for heating the circuit substrate during transfer and effecting reflow soldering of the circuit substrate;a cooling means for cooling the circuit substrate after it is reflow soldered by the heating means;discharge pipes and a discharge blower for discharging an exhaust gas at high temperature escaped from the heating means to outside of the reflow soldering device; anda flux removing means, mounted in the discharge pipes, for causing a vaporized component contained in the exhaust gas to become liquid or solid by cooling the exhaust gas to a temperature lower than 70.degree. C. by mixing outdoor air with the exhaust gas, and for removing the liquefied or solidified component by straining with a filter.