Note: Bonding Foil to a Plastic Bottle
Objective:
To heat aluminum foil inside a plastic bottle for a bonding/cap sealing application; this application is for the food industry.
End Product:
bottle cap
Equipment:
Ambrell EASYHEAT™ 4.2 kW, 150-400 kHz solid state induction power supply with a workhead and coil specifically designed for this application.
Materials:
Aluminum foil sandwiched between the bottle and cap
Temperature:
150 ° F (66 °C)
Frequency:
150 kHz
Testing:
A custom-designed single position multiple-turn pancake coil was built to generate the required heating for the application. Initial tests were conducted to optimize the power delivered to the part. Once a satisfactory pattern was achieved with the proper coil design, parts were traversed over the coil at a rate of about 45 bottles per minute. It was confirmed that the aluminum heated sufficiently to create a bond between the foil and the bottle, meeting the client’s objective.
Benefits:
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Speed: Induction met the client’s time requirements and is generally faster than other heating methods.
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Throughput: Induction’s fast heating is conducive to production lines in the food industry thanks to its rapid heating and versatility.
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Repeatability: The client can expect the same result in the same amount of time every single time with induction heating.
Visit our Applications Lab to learn more about free applications testing.
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