Joining technology for Induction soldering

The soldering technique for induction brazing includes components, systems, machines and customer-specific systems for soft soldering and brazing with inductive heating. Induction brazing, also referred to as inductive brazing, is a non-contact joining process for electrically conductive components. The joining parts are enclosed at the soldering point by an induction loop, which is supplied with a high-frequency alternating current and generates an electromagnetic alternating field. The alternating field induces in the joining parts a voltage which generates an alternating current and causes a heating of the current-carrying surface. Induction brackets allow constant and wear-free contactless energy input, but are only suitable for soldering partners with a geometry that can be covered by an induction loop. Induction soldering systems consist basically of induction loop, high frequency power section, cooling unit and control. For this purpose, workpiece fixtures, solder wire feeds and external temperature monitoring can occur. The soldering process can take place in ambient air or under inert gas. Induction brazing is a non-contact method for the production of soft and brazed joints on metallic components, which can be largely enclosed by an induction loop. The process can be easily and robustly controlled, pre-heating of the joining parts is not necessary. Typically, wire diameters are soldered from copper of about 0.1-12 mm or from steel of 0.1-15 mm. Thin wires or conductors can be soldered only to a limited extent. The process is unsuitable for sensitive electronic components that can be damaged by induced currents. Both manual workstations and fully automatic soldering stations are realized. Typical products for selective soldering are electrical low-voltage modules and components. Important user industries are the automotive supplier and automotive industry.