转炉托圈及联接装置机械应力的三维非线性有限元分析  

The 3D Non-linear Finite Element Analysis of Mechanical Stress for Converter Support Ring and Linkage

作　　者：潘天成[1] 潘紫微[1] 包家汉[1] 童靳于[1] 

机构地区：[1]安徽工业大学机械学院,安徽马鞍山243002

出　　处：《冶金设备》2010年第2期29-31,45,共4页Metallurgical Equipment

摘　　要：针对某钢厂3号转炉托圈水平联接座与下盖板焊接处产生的裂纹问题,建立整体装配模型,运用三维非线性有限元法,对托圈在焊接人孔和活动人孔两种情形下,不同倾动角度时,进行了机械应力分析,分析结果表明:两种情形下托圈整体机械应力分布大致相同,且应力水平相当;水平联接座与下盖板焊接处机械应力水平过高,这与国外某钢厂此处过早产生断裂损坏完全一致。Aimed at the crack problem of place that the converter loop level base frame weld together with down cover plate in a factory,a whole assembly model is made.Under the loop with the welding manhole condition and with activist manhole condition,mechanical stress of loop is analyzed by 3-D non-linear finite element at different（pitch angle） location. It is found that the distribution of mechanical stress and the stress level are much the same in the two conditions; the mechanical stress at the place that the converter loop level of connection blocks weld together with down cover plate is higher,it is coincidence with the pre-mature destruction of foreign steel factory.

关 键 词：转炉托圈 整体装配 非线性有限元 人孔 机械应力 

分 类 号：TF748.2[冶金工程—钢铁冶金]