Bonding plastic sleeve to stainless steel handle for food industry

Objective

To heat the end of a stainless-steel handle with a plastic sleeve coated with heat adhesive 

End Product

food service tool

Equipment

Ambrell EASYHEATTM 1.2 kW, 150-400 kHz solid state induction power supply with a workhead and coil specifically designed for this application.

Materials

1” (25 mm) OD stainless steel handle, 0.30” (7.6 mm) thick, covered with a plastic sleeve that is coated with a heat adhesive between the tube & plastic cover.

Temperature

250 ºF (121 ºC)

Frequency

170 kHz

Testing

A three-turn helical coil is used to heat the handle assembly. The assembly is placed in the coil and heat is applied for 10 seconds at the end of the handle to reach the required temperature of 250 ºF (121 ºC) to adhere the plastic sleeve to the handle.

Benefits

• Speed: Induction met the client’s time requirements and is often faster than other heating methods.

• Repeatability: The client can expect the same result in the same amount of time every single time with induction heating.

• Precision: Induction was able to heat the portion of the part that required heating at the required temperature

Image