measuring apparatus of the measuring method and the casting sand of foundry sand

摘要

The present invention without requiring a great deal of measuring time, and, it is possible to obtain highly accurate measurement results, and to be able to easily provide a good data required for subsequent processing. A casting sand is charged into the vessel housing the molding sand, by supplying hot air to lower the water content of the molding sand within the predetermined range, the electrostatic value of the molding sand after it was vibrated compressing the molding sand was measured, the electrostatic value, in terms of the LOI% by computer calculation on the basis of the underlying static value of pre-calibration and sand components, and outputs the data, the processing of the next process on the basis of the data Use.BACKGROUND 1