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induction heating

At Fairview Coil Fabrication, we believe that proper coil design is a crucial aspect of any effective induction heating system. Our team of master craftsmen will work with you to analyze your process requirements and suggest a coil design that we believe will be efficient and effective for your application. The perfect coil not only allows for easy part handling but also maximizes the efficiency of the induction heating power supply, ensuring the proper heating pattern of the parts. This customized approach provides the most efficient and effective induction coil for your manufacturing process.

Important Induction Coil Design Parameters

Coil Coupling 

For maximum efficiency and heat transfer, the induction coil or inductor should be designed so that the part can be placed very close to it. The term “coupling” refers to the relative distance between the coil and the part being heated. So a short distance between the coil and part is often referred to as “tight coupling” while “loose coupling” means there is more of a gap.

Operating Frequency

The operating frequency of your induction heating process will depend largely on the specific process  brazing, shrink fitting,  bonding, etc. and the size and shape of the part. Generally speaking, tighter coupling is preferable for lower operating frequencies. Coupling becomes less of an issue with higher frequency induction heating processes.

Cooling Considerations

Induction heating coils commonly rely on water to regulate their temperature. It is essential to maintain proper water flow for optimal heating efficiency and to prevent copper cracking, especially when the heating cycle is brief. Overheating during longer heating cycles can cause gradual coil deformation. To mitigate the risks of overheating, one can increase water flow rate or decrease water temperature. Alternatively, additional cooling circuits can be incorporated into the system. Our team will collaborate with you to ensure that your coil design adequately addresses your process and part requirements for cooling capacity.

Design Examples

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