Frequently Asked Questions for Induction Heating— Part Three

When encountering induction heating for the first time, you may have various questions and concerns. These can range from complex inquiries about the working principles of induction heating to simple operational questions regarding how to use an induction heating machine. This article aims to clearly address both what you already know and what you wish to learn.

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How do I select a braze alloy?

We have created a Brazing Alloy Selection Guide to assist you in choosing the best option for your needs. The selection depends on the composition of your part, its intended use, and the required joint strength. Additionally, we offer a service that connects our customers with experienced brazing alloy suppliers.

We've been using old vacuum furnaces for years. How can we improve our operations?

The best approach now is to unplug those old furnaces and invest in a fast, clean vacuum induction system. Our new compact induction furnace is designed to fit seamlessly into your manufacturing cell.

How hot does the induction coil get?

The induction coil remains cool to the touch. The heat that accumulates in the coil is continuously dissipated by circulating water.

Can you use induction heating to braze steel parts in a nitrogen atmosphere?

Yes, it is possible, but the nitrogen must be clean and maintained at a low dew point.

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Can diamond bits be brazed with induction heating?

Absolutely! In fact, induction heating is the preferred method for brazing diamond bits due to its speed. The longer a diamond remains at elevated temperatures, the faster it degrades. For optimal results, we recommend atmospheric brazing within a vacuum environment.

When is it better to use the indirect heat of an induction furnace instead of direct induction heat?

This question frequently arises. The choice depends on the geometry of the part and the desired heating method. For parts with simple geometries where specific areas need heating, direct induction heating is generally preferable. Conversely, for heating an entire part or those with complex shapes, an induction heating vacuum furnace will yield better results.

Can induction be used to nickel-braze in nitrogen?

Yes, this can be done with a vacuum system. We have had some success using foil preforms; however, we encountered issues with nickel paste due to the binder not flowing. Therefore, we recommend using a high vacuum system as it operates faster than oven heating, minimizing the formation of nitrides.

If, after reading these three articles covering frequently asked questions, you still have uncertainties about induction heating, feel free to send us an inquiry. We are always here to assist you.

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