EVALUATION METHOD OF DEFECT/DAMAGE ON HEAT-INSULATING COATING FILM AND EVALUATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an evaluation method of defect/damage on a heat-insulating coating film capable of easily determining a manufacturing defect or an operational damage on a boundary of the heat-insulating coating film and a metal base by means of visual inspection or observation via a camera.SOLUTION: The evaluation method of defect/damage on a heat-insulating coating film includes: heating the surface of a heat-insulating coating film 5 which is formed integrally with a metal base 13 red-hot; and evaluating a defect or damage on the heat-insulating coating film based on the color or brightness of the surface of the heat-insulating coating film 5.SELECTED DRAWING: Figure 1