Comparison Between the Heating Rates of a Magnetic Induction Soldering Iron and Another One Composed of Resistance

Abstract

In this work an experimental and comparative analysis is realized in order to determine the difference in the heating rate and thus the power consumption, between a magnetic induction soldering iron and another one of low cost composed of electric resistance. By maintaining a constant power supply 40 W, three models of comercial tips designed for the soldering iron of resistances are used, which are classified by the determination of their magnetic parameters, to subsequently determine the best frequency heating in order to feedback the induction soldering iron, resulting a frequency of 100 kHz. Overall the results indicate that for each tip a less power consumption is required using magnetic induction, because the differences between the times required to melt the welding wire ranging from 21.6 to 29.5%, where the tip that exhibited a higher heating speed is the more ferromagnetic.

Key-words: Power sources; Heat flux; Solder