狭缝位置对透气砖热机械应力分布的影响

刘辉敏; 孙加林; 王金相; 杨彬

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狭缝位置对透气砖热机械应力分布的影响

材料科学与工程 | 更新时间：2026-09-14

- 狭缝位置对透气砖热机械应力分布的影响
- Influence of Slits Position on the Thermom-Echanical Stress Distribution of Purging Plug
- 中北大学学报（自然科学版） 2010年31卷第6期页码：655-660
- 作者机构：
  
  1. 北京科技大学材料科学与工程学院,北京,100083
  2. 洛阳理工学院材料科学与工程系
  3. 中钢集团洛阳耐火材料研究院
- 作者简介：
- 基金信息：
  
  河南省杰出人才创新基金资助项目(74200510011)
- DOI：
  中图分类号：
- 纸质出版：2010
- 稿件说明：
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刘辉敏, 孙加林, 王金相, 等. 狭缝位置对透气砖热机械应力分布的影响[J]. 中北大学学报（自然科学版）, 2010,31(6):655-660.

刘辉敏, 孙加林, 王金相, et al. Influence of Slits Position on the Thermom-Echanical Stress Distribution of Purging Plug[J]. 2010, 31(6): 655-660.
刘辉敏, 孙加林, 王金相, 等. 狭缝位置对透气砖热机械应力分布的影响[J]. 中北大学学报（自然科学版）, 2010,31(6):655-660. DOI：

刘辉敏, 孙加林, 王金相, et al. Influence of Slits Position on the Thermom-Echanical Stress Distribution of Purging Plug[J]. 2010, 31(6): 655-660. DOI：

摘要

为提高透气砖的使用寿命

对它的热机械应力场进行了模拟分析

以确定狭缝在其截面上的合理位置.首先根据透气砖工作特点和研究目的

在适当简化其结构和边界条件的基础上

建立了它的二维平面应变有限元模型.然后在保持狭缝尺寸一定的前提下(0.20 mm×20mm)

研究了其相对位置对透气砖热机械应力场的影响.研究结果表明:1透气砖热机械应力分布不均

高应力区位于狭缝端部及其周围;2狭缝端部与透气砖边缘距离大于5mm时

狭缝径向位置对热应力影响不大

反之应力增加较多;3随着狭缝偏转角度增大

热应力和高应力区域面积迅速增加

狭缝沿径向呈辐射状分布较为合理;4透气砖直径以140mm左右为宜.

Abstract

For extending the life of purging plug

its thermo-mechanical stress fields were simulated to determine the reasonable position of the slits on its section.First

based on the working properties of the purging plug and the purpose of research

its two-dimension plane strain finite element models were built by simplifying the structure and the boundary conditions.Then the influence of the slits' relative position on the thermo-mechanical stress distribution of purging plug was studied by keeping their size as a definite value(0.20 mm×20 mm).The results show: the distribution of the thermo-mechanical stress of purging plug is not uniform

the areas of higher stress are located in the ends of the slits and their neighborhood;the influence of the slits on the thermal stress is not obvious if the distance between their ends and the purging plug's brim is not exceeding 5 mm

and contrariwise

the stress increases obviously;with the augment of the slits' deflecting angle

the thermal stress and the higher stress area increase speedy

so it is reasonable if the slits distribute in radiate direction;it is also reasonable if the diameter of the purging plug is about 140 mm.

关键词

Keywords

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