Induction Shrink Fitting For Inserts with IGBT Shrink fitting Heater
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.
Material: Aluminum Pump Housing measuring 8" x 4 1/2" x 3 1/2"
Steel insertion parts.
Temperature: 3750F
Application: By using the DW-HF- 25, 25 kW output solid state induction power supply the following results were achieved.
- 3750F was reached in one (1) minute to allow for insertion.
- 20 housings were successfully heated using a five (5) turn right angle pancake coil.
Equipment: Ameritherm SP 25, 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.
Frequency: 80 kHz
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