Note: Curing Adhesive on Steel Motor Shaft for Bonding
Objective:
Cure adhesives on the internal wall of a steel motor shaft to bond electronic stress/strain gauges into place.
End Product:
Motor shaft
Equipment:
- Ambrell 1kW induction heating system equipped with a remote workhead enclosure for double capacitor/buss modules. Zone 1 needs a 0.25 μF capacitor, while Zone 2 requires 0.66 μF
- An induction heating coil designed and developed specifically for this application.
Materials:
Steel shaft measuring 6.65 in (168.9mm) OD, 5.5 in (139.7mm) ID and 70 in (1.8m) long. Aluminum shield plate and two end guide plates.
Temperature:
285 °F (140.6 °C) > 300 °F(148.9 °C)
Frequency:
160 kHz
Testing:
A complex two coil system, shield and stud systems used to provide proper axial alignments of the shaft & coil while allowing the fixture to be open for removal of the shaft. The aluminum shield separates the two required heat zones. An average temperature of 290 °F(143.3 °C) is maintained for 1.5 hours.
Benefits:
-
Precise, accurate control of heat placement
-
Minimized coating defects
-
Repeatable results
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