Kuang X, Liao Y, Chao Y, Meng Y
College of Stomatology, West China University of Medical Sciences.
Hua Xi Kou Qiang Yi Xue Za Zhi. 1999 May;17(2):163-5.
The refractory die is the precondition for developing slip casting core of sintered powder. This study is to determine the high temperature properties of the refractory die material compatible with slip casting core.
To prepare three cylindrical specimens (phi 10 x 15 mm) and determine their compressive strength at 1000 degrees C: to make four specimens in flat-topped cone for determining the practical refractory degree by decreasing the pressing temperatures in a sequence of 1420, 1400, 1350 and 1100 degrees C.
The compressive strength of this material was 17.8 MPa at 1000 degrees C. Its practical refractory degree was higher than 1100 degrees C.
The high temperature properties of the refractory die material that we developed meet the demand of slip casting core of sintered powder.
耐火模具是开发烧结粉末注浆成型型芯的前提条件。本研究旨在确定与注浆成型型芯相容的耐火模具材料的高温性能。
制备三个圆柱形试样（直径10×15毫米）并测定其在1000℃时的抗压强度；制作四个平顶圆锥试样，通过在1420℃、1400℃、1350℃和1100℃的温度序列下降低压制温度来确定实际耐火度。
该材料在1000℃时的抗压强度为17.8兆帕。其实际耐火度高于1100℃。
我们开发的耐火模具材料的高温性能满足烧结粉末注浆成型型芯的要求。
