Note: shrink-fitting a Fuel Pump Housing and Inserts
Objective:
To heat an aluminum fuel pump housing measuring 8 x 4.5 x 3. in to 375 °F, allowing steel parts to be inserted. Presently the housings are heated for over one hour in a convection oven. The areas that are to have steel parts inserted measure 1.5 in and 0.6875 in in diameter. In addition, the insertion process lasts for a little over one minute, so 375 °F should be maintained for a period of time to complete the process.
End Product:
fuel pump
Equipment:
Ambrell 25 kW output solid state induction power supply including one remote heat station containing four capacitors totalling 1.0μF, and a five-turn right angle pancake coil made from 3/16 in copper tube.
Materials:
Aluminum Pump Housing measuring 8 in x 4 1/2 in x 3 1/2 in Steel insertion parts.
Temperature:
375 °F
Frequency:
100 kHz
Testing:
Benefits:
By using the Ambrell induction system, the following results were achieved.
375 ° F was reached in one (1) minute to allow for insertion.
20 housings were successfully heated using a five-turn right angle pancake coil.
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