Heating principle of Metcal soldering iron tip
Release Date：2017-09-08
Metcal soldering iron tipThe heating element comes from a patented design: it includes a non heating copper core and an outer heating magnetic alloy coating. The ratio of multiple alloys determines the temperature of the soldering iron tip.
When high-frequency current passes through the heating element, the current caused by the magnetic alloy coating is limited to the "surface layer". This is the skin effect. The result is a rapid accumulation of thermal energy caused by high-density current on the surface. As the thermal energy increases, the temperature of the magnetic alloy coating exceeds the Curie point temperature, and the physical properties of magnetism are lost. This terminates the skin effect, and the current gathers towards the low resistance, unheated copper core.
When the soldering iron tip cools slightly and the alloy coating returns to the Curie point temperature, it regains its magnetic physical properties. The skin effect takes effect immediately, and another thermal cycle begins. Therefore, the self adjustment of the soldering iron tip is very close to the Curie point, maintaining a constant temperature (± 1.1 ° C) Due to the constant temperature of the soldering iron tip, thermal energy will not be stored in the soldering iron tip like traditional soldering stations, and intelligent heating (SmartHeat) is available ?) The system applies power directly to the solder joints.
For more information about Metcal soldering iron tips, please follow usMetcal High Quality Agent Shenzhen Yapude Technology Co., Ltd. Enterprise Networkhttp://www.huafenggate.com
