Research Of A Fuccy Controler Of The Leadfree Reflow Soldering

Reflow soldering is a key chain in the SMT ,the function of the reflow soldering stove is to provide a requested-temperature condition on which the solders is melt and then cooling and becomes solid to form a soldering drop. The leadfree solders has a strict request to the temperature of the soldering environment, the text mostly study the fuccy controller of the leadfree reflow soldering. Guangxi mechanical and electrical technology school is going to develop a new course named SMT, therefore a reflow soldering stove controller will need to be work out, which will be uesed for experimentThe text initially analyses the working principle of the reflow soldering, according the requested-temperature , a hardware system is designed, which core is a microcomputer 89s51.A PT100 is used to collect the temperature of the reflow soldering stove ,and then the data is passed on to the microcomputer by the ADC.A control order is given to the execute equipment SSR TSS16J41Swhich controls the heating efficacy of a heater.The text uses the fuccy math as the control method. Firstly the text...