A specially designed multiple-turn pancake coil was used for this heating application. Initial tests were conducted to optimize the power delivered to the part.
Induction heating enabled the aluminum to seal to the plastic cap quickly without the cap being damaged. The customer desired a quick rate which would make in-sourcing the process worthwhile, and induction heating exceeded the targeted production rate thanks to its fast heating.
Customer currently has Induction foster equipment and would like to increase their run rate.
A single turn helical coil of rectangular tube is designed to uniformly heat the entire perimeter of the aluminum foil. In production the bottle will pass under the induction coil.
Power is applied directly to the foil; no energy is wasted heating the cap or the surrounding air or parts.
A three-turn two-position helical coil is used to heat the aluminum foil in a tunnel style assembly. Product (containers) passes easily under the induction coil.