| 摘要 |
An inspection system for aluminum casting products using magnetic fields is provided to reduce losses due to dumping of inferior goods by allowing for rework of removing sand on inferior goods. An inspection system for aluminum casting products using magnetic fields includes a magnetic substance(10), a current magnetic sensor(11), a signal processing device(12), and a control device(13). The magnetic substance is disposed in mold sand. The magnetic substance generates magnetic field. The current magnetic sensor is positioned at an outer part of a casting product. The current magnetic sensor detects the magnetic field generated by the magnetic substance and converts a detected magnetic field into an electric signal. The signal processing device amplifies and filters a signal converted from the current magnetic sensor. The control device determines existence of the mold sand by analyzing a processed signal.
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