induction soldering copper tubing to brass valves

High frequency induction soldering copper tubing to brass valves

Objective:

Test: Induction Soldering copper tubing to brass valves

Industry: HVAC

Materials: Copper and brass pipes

Equipment: DW-HF-25kw induction heating machine

Power: 16 kW

Temperature932oF (500oC)

Time: 20 seconds

Coil: Coated custom-made coil.

The Process:

This application request was brought to HLQ Induction Heating Power’s attention by a HVAC company. Their goal was to eliminate their current use of the torch method, as well as remove defects and improve the safety for operators. To start the test, our applications engineer assembled the setup of copper tubing and brass valves. After applying flux to each joint the engineer heated them for 20 seconds. Solder was manually applied after the joints reached 932oF (500C), and created an even solder around the joints.  The use of induction heating was successful in this HVAC application.