Induction Heating a Steel Mold
Objective A company needed to heat a steel mold for a resin bond. They contacted THE LAB at Ambrell to see if induction could achieve the objectives...
The objective of this induction heating application is to heat a magnetic steel cutting tool for a brazing application. The end product is a cutter for the logging industry. An Ambrell EKOHEAT 45 kW/100 kHz induction heating system is used for this application.
With an EKOHEAT 45 kW induction power supply, the part can be heated to temperature within 150 seconds. Despite testing occurring on a 45 kW /100 kHz power supply, Ambrell actually recommends an EKOHEAT 50 kW/30 kHz power supply. This unit can deliver power at lower voltages due to increased capacitance. This results in the unit running at a lower frequency. Since it runs at lower voltages, the Ambrell Auto Tap feature can be leveraged.
Auto Tap is a feature in Ambrell EKOHEAT power supplies which allows the transformer tap to automatically change during a heat cycle. This is particularly beneficial when magnetic properties experience changes during heating, which is the case here. It improves the power delivered during the heat cycle and can reduce the heat cycle by at least 20 seconds.
Brazing is one of our specialties. Our Brazing Guide offers more information on brazing efficiently.
We also offer a rich library of induction brazing application notes.
Induction Brazing a Steel Collar and Insert
Objective A company wanted to braze steel components, those being a collar and an insert. They turned to THE LAB at Ambrell to validate the viability...
Preheating an Alloy Wire for Extrusion
Objective A company needed to preheat alloy wire for their continuous extrusion process. They contacted THE LAB at Ambrell to see if induction might...