Note: Bonding a plastic handle to a surgical knife

Objective:

Bonding handle of a stainless steel surgical knife into a plastic handle

End Product:

scalpel

Equipment:

Ambrell 4.2 kW induction heating system, equipped with a remote workhead containing one 0.66μF capacitor.
An induction heating coil designed and developed specifically for this application. 

Materials:

Plastic tool handle, 0.125 in (3.18mm) diameter steel knife 

Temperature:

450 °F (232 °C)

Frequency:

390 kHz

Testing:

A four turn split helical coil is used for this application. Power is applied to the steel knife for 2.0 seconds to reach 450 °F (232 °C). The steel knife is then inserted into the plastic handle to create a solid bond.

Benefits:

  • Fast, accurate, repeatable heat‚Able to heat very small areas within precise production tolerances

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

  • Even distribution of heating

Bonding a plastic handle to a surgical knife

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1655 Lyell Ave, Rochester, NY 14606 USA | Tel: +1 585 889 9000