Note: Pre-heating aluminum wheels (spray painting)
Objective:
This spray painting application requires pre-heating the material. Additionally, there is a requirement that the material must not cool below a certain target temperature prior to the spray.
End Product:
Aluminum automotive wheels
Equipment:
Ambrell EKOHEAT 75/10 kW induction heating system, equipped with a remote workhead containing three 27 μF capacitors for a total of 81 μF
An induction heating coil designed and developed specifically for this application.
Materials:
Customer-supplied parts
Temperature:
275 °F (135 °C)
Frequency:
8 kHz
Testing:
A multi-turn combination helical/pancake coil is used. The 22 in aluminum wheel is inserted into the coil and heated for 30 seconds to a temperature of 275 °F. When heating is halted, the part remains at or above 150 °F for 108 seconds, fulfilling the target heat requirement
Benefits:
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Uniform heat distribution over the wheel
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Precise control of heating and pattern
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Efficiency; reduced energy costs

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