【摘要】 膨胀缝对钢包复合结构体的热应力具有重要影响,热膨胀应力是其损坏的重要原因之一,所以热膨胀应力计算具有很大的实用价值。内衬之间的膨胀缝问题可以归结为一类接触问题,建立了其物理模型。基于有限单元法,建立了钢包复合结构体中包底内衬膨胀缝的有限元模型,研究了各层膨胀缝的接触应力。研究结果表明:设置2mm膨胀缝可以降低的接触应力为内衬耐压强度的1/6～1/5。更多还原

【Abstract】 Expansion joint has important influence on thermal stress of ladle composite construction body,the thermal expansion stress is one of its important reasons that lead to damage,so it’s very great practical value to calculate the thermal expansion stress.Expansion joint question between the inside linings can be summed up in a kind of contact question,its physical model is set up.The finite element model of expansion joint of bottom lining in ladle composite construction body is built,the contact stress of expansion joint in every layer are studied.The results show that setting 2 millimeters expansion seam can reduce the contact stress which takes up from 1/6 to 1/5 of lining resistance pressure intensity.更多还原