Patent ID: 9217612
Filing Date: 2015-12-22
Classification: F25B,F28F,G01K

Abstract:
1. A temperature monitor of a wire electric discharge machine that machines a workpiece by supplying a working fluid from a working fluid treatment equipment to a work tank where the workpiece is placed, comprising: a working fluid temperature detector that detects a temperature of the working fluid; a working fluid temperature controller that controls the temperature of the working fluid so that the temperature of the working fluid is within a predetermined range; a working fluid temperature comparator that determines whether the detected temperature of the working fluid is within a preset allowable working fluid temperature range or not; an alarm display unit that displays an alarm when determined by the working fluid temperature comparator that the temperature of the working fluid is outside the allowable working fluid temperature range; a working fluid temperature difference disappearing time measuring unit that measures a time that has elapsed since the detected temperature of the working fluid falls within the allowable working fluid temperature range from outside the allowable working fluid temperature range; and an alarm lifting unit that calls off the alarm when a time measured by the working fluid temperature difference disappearing time measuring unit exceeds a preset working fluid temperature difference disappearing time.