Basics of Induction Heating

Your solution for soldering applications in metal eyewear production.

 

What is induction heating?

Induction heating is based on the provision of energy by electromagnetic induction. A suitably sized coil, placed near the metal parts to be heated, passed through by alternating current at high frequency, induces eddy currents on the workpiece, the intensity of which can be controlled and modulated.

 

Heating occurs without physical contact, involves only the metal parts to be treated, and is characterized by high transfer efficiency without heat loss.

 

The depth of penetration of the generated currents is directly related to the working frequency of the generator used; the higher it is, the more the induced currents are concentrated on the surface. In this case, homogeneity of heating over a large mass can be achieved by the principle of thermal conduction, which allows heat to be transferred in depth.

 

How is it applied in eyewear?

Generating heat is fundamental in soldering metal eyewear components, such as:

• Closing block to eye rim soldering 
• Bridge / top bar to eye rim soldering 
• Pad arm to eye rim soldering 
• Hinge to temple soldering, and many more …

 

A precise dosage of such heat allows for high quality soldering joints, without burn marks. Our CEIA Power Cube family generators and Master Controller control units are based on modular devices that are compact in size and technologically highly advanced. The devices in their various combinations make up workstations that vary in complexity from a single manual soldering point to multiple points with automatic solder wire feeding, in which operator intervention is limited to the loading and unloading of the eyewear components to be processed.

 

Please refer to the brochure, starting on page 8, which you will find on the linked product website at the end of this article in the “Related Topics” section, for the various configuration examples of our soldering stations.

 

Thanks to the modular design, generators and control units, as well as their accessories (heating heads, supports, pyrometers, inert gas accessories, solder wire dispensers, etc.) can be connected to each other. It is possible to operate up to 4 heating heads per workstation. All common applications in the optical market are possible.

 

The variety and mode of operation are described in greater detail in the document “PowerCube Combinations” at the end of this article.

 

 

Operator Safety

Operator safety is one of our main concerns. As such, thanks to careful testing at the CEIA in-house LACE laboratory, all products conform to the international standards currently applicable for electrical safety, E.M.C. and CE-regulations.

 

Your F.W. Haug contact persons are at your disposal should you have any questions or queries regarding our induction soldering products.

 

RELATED TOPICS:

Soldering              PowerCube Combinations