casting refractory
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Author(s):  
O. S. Komarov ◽  
V. M. Nemenenok ◽  
T. D. Komarova

The method and device for measuring of the strength of the core casting refractory paint at high temperatures were developed. It has been shown that the failure strength sodium aluminates binder after testified that decrease of sodium aluminates binder strength after being in the range of 300–600 °C is lower than that for sodium silicate. There is a correlation between hardness and strength of the paint during heating at 1300 °C.


2010 ◽  
Vol 37-38 ◽  
pp. 1114-1119
Author(s):  
Chang Ming Liu ◽  
Zhi Gang Wang ◽  
You Rong Li

Al2O3-ZrO2-SiO2 material (Also known as AZS) is a very important class of refractory, and plays an important role as high temperature structural ceramics. High stress in the edge of the casting is a major cause of fracture of the product. In this paper, the thermal and mechanical stresses were calculated by finite element method under cooling process. Also, the preheat temperature, thermal conductivity of mold material and thermal convection coefficient known as the influencing factors of thermal stress and decreasing stress measures have been studied. Calculation results indicate the peak stress can be lowered by elevating the preheat temperature, thermal conductivity of mold material can not change the peak stress but influence the changing speed.


Refractories ◽  
1975 ◽  
Vol 16 (9-10) ◽  
pp. 576-580
Author(s):  
I. S. Kainarskii ◽  
A. G. Karaulov ◽  
G. E. Kalita

1965 ◽  
Vol 36 (2) ◽  
pp. 209-210 ◽  
Author(s):  
J. J. Ryan ◽  
E. T. Peters

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