施釉产品的性质使得测量热膨胀很困难,釉层较薄地附着在胎子上,因而要准确测定中间层以及分别给出釉和胎的膨胀值是不容易的。英 Steger 改进设计了一种新的釉应力测定方法,此法采用新式的 Netzch420E 膨胀仪。将一个瓷胎试条局部地施釉,并在电炉中加热(一头固定,另一头可自由活动),由于胎、釉膨胀率不同,结果使试条弯曲,从而使其自由端偏移,此偏移量通过 The nature of the glazing product makes it difficult to measure thermal expansion and the glaze layer is thinly attached to the tire so that it is not easy to accurately measure the interlayer as well as to give the glaze and tire inflation respectively. British Steger improved design of a new method of measuring glaze stress, this method uses the new Netzch420E dilatometer. A porcelain test strip is locally glazed and heated in an electric furnace (one fixed and the other free movable). As a result of the tire, the glaze expands at a different rate so that the test strip bends so that its free end is offset, Move through