Note: Melting the end of a plastic tube to create a seal

Objective:

Melting the end pieces of a plastic tube together to create an air tight seal

End Product:

Product tubes

Equipment:

Ambrell 4.2 kW induction heating system, equipped with a remote workhead containing two 1.5μF capacitors for a total of 0.75μF
An induction heating coil designed and developed specifically for this application.

Materials:

Plastic tube 2.5 in (63.5 mm) long, 0.75 in (19 mm) diameter

Temperature:

N/A

Frequency:

185 kHz

Testing:

A single-turn coil encapsulated in custom blocks is used for sealing the tube. Two tubes are placed between the coil blocks and a 7 lbs (3.2 kg) load is applied to the top of the coil. Power is only supplied to the top block of the coil for 250 ms causing the plastic to melt and create an air tight seal. 

Benefits:

  • Fast and precise application of heat

  • Hands-free heating that involves no operator skill for manufacturing

  • Even distribution of heating

Melting the end of a plastic tube to create a seal

Visit our Applications Lab to learn more about free applications testing.
1655 Lyell Ave, Rochester, NY 14606 USA | Tel: +1 585 889 9000