Paper Title:
Research on Thermomechanical Stress of Casting Refractory and Improvement Measures
  Abstract

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.

  Info
Periodical
Edited by
Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng
Pages
1114-1119
DOI
10.4028/www.scientific.net/AMM.37-38.1114
Citation
C. M. Liu, Z. G. Wang, Y. R. Li, "Research on Thermomechanical Stress of Casting Refractory and Improvement Measures", Applied Mechanics and Materials, Vols. 37-38, pp. 1114-1119, 2010
Online since
November 2010
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Price
$32.00
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