Soldering with Induction – Malhotra Technologies

Soldering with Induction

Induction soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal (solder) into the joint interface.

About Induction Soldering


Induction soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal (solder) into the joint interface. The filler material (solder) has a lower melting point than the work pieces being assembled. Induction soldering heats the work pieces in an RF (Radio Frequency) field without making physical contact to the parts. The process differs from Welding as it does melt the joining parts and differs from Brazing where the filler material melts at higher temperatures.

Common materials for induction soldering are copper, brass and aluminum. Induction soldering if often used in applications such as manufacturing RF Cable Assemblies; and manufacturing plumbing sub-assemblies. Induction Soldering of delicate components is also possible by using a higher frequency induction system, such as the UPT-SB3, which has frequencies up to 1 MHz.

Induction heating provides a number of benefits over traditional soldering methods. With the use of solder preforms and setting up programs for each part time, we achieve very precise process control. By programming the heating time and power, the process is highly repeatable, and the results are not dependent on operator skill and training.

Examples of Shrink Fitting with Induction


Solder end connectors to a Printed Circuit Board

Induction Soldering of PCBs with Soldering paste

Soldering Copper Coaxial Cable with Copper Connectors

Soldering copper pins onto a PCB

Soldering of cables to terminals with induction

Soldering a coaxial cable to connector ring and pin with induction

Soldering flexible and solid leads to a copper connector with induction

Soldering with toroidal ferrite coil

Solder lead to connector copper

Induction soldering of brass corner joint

Soldering Brass tubes to brass assembly

High Frequency Solder Reflow