Considerations on the Softening and Melting Bellaviour of Coal Ash

Abstract

By the Leitz's heating microscope, the author examined the softening and melting behaviours of coal ash (size of sample is 27mm³).The characteristic melting curves of coal ash were obtained from the results of these researches.
These curves had showed the change points of minimum and maximum, so severally named it the beginning point of softening and melting, moreover suggested the one way to express the melting behavoir of coal ash by means of this characteristic points.
According to the comparison between this way and JIS, method also recognized that the former was better than the latter in the measurement of melting point.