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Preheat for Threading

Preheat for Threading 2017-07-21T08:50:53+00:00

Preheat for Threading

Objective
The customer preheats a variety of parts so they can then be threaded. The objective of this test is to preheat each part to 600°F in under 30 seconds.

Equipment
UPT-S5 Power Supply
HS-4 Heat Station

Materials
Sample parts were provided by the customer. These included:
• Part 1 composed of magnetic steel with 0.375” OD
• Part 2 composed of magnetic steel with 0.5” OD
• Part 3 composed of magnetic steel with 0.875” OD
• Part 4 composed of magnetic steel with 1.5” OD
• Two Coils were used. Coil 1 for heating Part 4 with the 1.5” OD. All other parts were heated with Coil 2.

Key Parameters
Temperature: about 600°F (316°C)
Power:
• Part 1:1.68 kW
• Part 2: 2.6 kW
• Part 3: 4.74 kW
• Part 4: 3.79 Kw
Time: less than 30 seconds

Frequency:
• Part 1: 79 kHz
• Part 2: 79 kHz
• Part 3: 83 kHz
• Part 4: 65 kHz

Process:
The part was centered in the coil.
The UPT-S5 Power Supply was turned on.
Temperature was monitored with an infrared camera and with Tempilaq paint.
All parts were able to be tested using the same equipment settings. No changes were required between heat cycles, other than to swap out the coil for Part 4. This is due to Ultraflex Power Technologies’ flexible design that allows the induction heating system to tune to a wide variety of loads.

Results/Benefits:
Precise control of the time and temperature
Power on demand with rapid heat cycles
Repeatable process, not operator dependent when parts are set in a nest or fixture

Pictures

Video

Preheat steel part with 0.375″ diameter
Note: machine heating time begins at roughly 28 seconds.

Video

Preheat steel part with 0.875″ diameter
Note: machine heating time begins at roughly 8 seconds.

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