Thermal stress analysis of continuous liquid steel temperature sensor
ZHAO Shu-mao1,HU Xiao-bing2,MEI Guo-hui1
1. College of Information Science and Engineering,Northeastern University,Shenyang 110004,Liaoning,China 2. Benxi Iron and Steel Co.,Ltd.,Benxi 117000,Liaoning,China
Abstract:Transient thermal analysis of continuous liquid steel temperature sensors(CLSTS)was carried out by finite element method, and the finite element model was proved by the real measurement data of temperature. After that, the dynamic stress field of sensors was computed from the temperature field by indirect coupling method. The results showed that high stress area for ordinary and corrosion-resisting CLSTS was between 250 and 450 mm above the bottom, while the one for fast response CLSTS located at the junction between different materials. The maximum thermal stress at high value zone reached its peak after CLSTS was inserted into molten steel for about 40 s. And the peak values of thermal stress were 3.2 MPa, 3.4 MPa and 6.0 MPa for ordinary, corrosion-resisting and fast response CTSFL individually.
赵树茂,胡小兵,梅国晖. 钢水连续测温传感器的热应力分析[J]. 中国钢铁期刊网, 2015, 34(4): 40-47.
ZHAO Shu-mao,HU Xiao-bing,MEI Guo-hui. Thermal stress analysis of continuous liquid steel temperature sensor. Chinese Journal of Iron and Steel, 2015, 34(4): 40-47.