钢包热机械综合应力的仿真研究
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摘要
钢包是钢铁冶金工业中重要的高温储运设备,为了了解钢包工作时应力分布及组成情况,采用有限元方法对115 t钢包进行了仿真分析。温度场和热机械综合应力分析表明热应力是钢包热机械综合应力的主要组成部分,并且应力大值多出现在包体焊缝处。因此,钢包设计制作过程中,要尽量选用热膨胀系数小的内衬材料,尽可能减小包体刚度梯度,严格控制焊接质量,以保证钢包安全可靠运行。
The ladle is a kind of important storage and transportation equipment under high temperature condition in the ferrous metallurgical industry.In order to investigate the ladle's stress distribution and composition,a simulation analysis of the 115 t ladle was made using the finite element method.The results showed that the thermal stress was the main part of the ladle's integrated stress,and that most of the stress's large values appeared near the ladle body's welding seams.Therefore,in order to ensure the safe and reliable operation of the ladle,in the design and manufacture,the thermal expansion coefficient of the lining should be lower,the stiffness gradient of the ladle body should be lower,and welding quality should be higher.
The ladle is a kind of important storage and transportation equipment under high temperature condition in the ferrous metallurgical industry.In order to investigate the ladle's stress distribution and composition,a simulation analysis of the 115 t ladle was made using the finite element method.The results showed that the thermal stress was the main part of the ladle's integrated stress,and that most of the stress's large values appeared near the ladle body's welding seams.Therefore,in order to ensure the safe and reliable operation of the ladle,in the design and manufacture,the thermal expansion coefficient of the lining should be lower,the stiffness gradient of the ladle body should be lower,and welding quality should be higher.
引文
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[2]王倩.130T钢包包壳的温度场和应力场的有限元分析[D].辽宁:辽宁科技大学,2014.
[3]汪海涛.冶金机械设计手册[M].北京:中国科技文化出版社,2006:1097-1109.
[4]张家荣,赵廷元.工程常用物质的热物理性质手册[M].北京:新时代出版社,1987:141-151.
[5]钱之荣,范广举.耐火材料实用手册[M].北京:冶金工业出版社,1992:21-26.
[6]张邦维,廖树帜.实用金属材料手册[M].长沙:湖南科学技术出版社,2010:269-313.
[7]陈世杰.钢包复合结构体热机械应力的研究及其寿命预测[D].武汉:武汉科技大学,2007.
[8]赵镇南.传热学[M].北京:高等教育出版社,2002:14-16.
[9]肖冰,罗会信,林刚,等.120t不锈钢AOD转炉的热应力仿真分析[J].炼钢,2010,26(02):29-32
[10]蒋国璋,孔建益,李公法,等.钢包温度分布模型及其测试实验研究[J].中国冶金,2006,16(11):30-32.
[11]吴晓东,刘兴国,郑建忠.炼钢-精炼-连铸过程钢包热状态测试研究[J].中国冶金,2007,17(02):29-33.
[12]谭小东,李莉.盘轴过盈配合的ANSYS分析[J].机械研究与应用,2010,23(06):30-35.
[13]张愉,张文,盛汉桥,等.有限元分析在转炉炉壳应力计算中的应用[J].固体力学学报,2008,29(12):56-59.
[14]杨治立,朱光俊,常长志.钢包稳态温度场的有限元模拟[J].特殊钢,2007,28(03):41-43.
[15]李华川,黄尚猛,陈晓云.基于ANSYS的钢包温度场及应力场的仿真研究[J].装备制造技术,2007,(06):35-40.