写真フィルム法による鋼製機械部品の温度測定

概要

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The temperature of the columnar specimen with a convex part or a concave part was measured in cooling in this fundamental study of temperature measurement of machine parts by the photographic film method. Carbon steel of 0.44%C was used for a specimen. The specimen austenized and cooled in Ar gas was photographed by using a white-and-black hotographic film. The temperature of the specimen obtained due to the relation between the transparent density of the photographic film and the temperature. Following results have been clarified by the photographic film method. The temperature of the convex part of the specimen is lower than that of the body. The temperature of the bottom of the concave part is higher than that of the end surface of the specimen. The temperature change at a round part becomes samller by the round shaping of the specimen with the convex or the concave part. This temperature change on the round part becomes smaller as the radius of round shaping in the specimen with the convex part increases.
1998-03-01