Note: shrink-fitting a Fuel Pump Housing and Inserts
Objective:
To heat an aluminum fuel pump housing measuring 8" x 4 1/2" x 3 1/2" to 3750F, 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" and 0.6875" in diameter. In addition, the insertion process lasts for a little over one minute, so 3750F 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 (1) remote heat station containing four (4) capacitors totalling 1.0 µF, and a five (5) turn right angle pancake coil made from 3/16" copper tube.
Materials:
Aluminum Pump Housing measuring 8" x 4 1/2" x 3 1/2" Steel insertion parts.
Temperature:
375º F
Frequency:
100 kHz
Testing:
Benefits:
By using the Ambrell induction system, the following results were achieved.
◦ 375º F was reached in one (1) minute to allow for insertion.
◦ 20 housings were successfully heated using a five (5) turn right angle pancake coil.
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