Note: Molding a teflon catheter tip
Objective:
Heat a water-cooled steel mandrel to 700°F (371ºC) to form a high quality Teflon catheter tip.
End Product:
Catheter
Equipment:
Ambrell 3 kW induction heating system, equipped with a remote workhead containing one 0.66 µF capacitor.
An induction heating coil designed and developed specifically for this application.
Materials:
Teflon catheter tubing
mandrel assembly
Temperature:
600-700 °F (315-371 ºC)
Frequency:
376 kHz
Testing:
A two-turn coil is used to heat the steel mandrel to 660 ºF (371 ºC) in 2.7 seconds. To form the catheter tip, RF power is applied while the catheter is held over the mandrel. The tubing is then pushed on to the mandrel to form a consistent, even tip.
Benefits:
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Precise, repeatable application of heat
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Non-contact heating
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Faster cycle times
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