以降低大型锌锭模的热应力、延长其使用寿命为目的,本文采用有限元方法,分析了散热筋、壁厚、圆角半径、上部法兰等结构与参数条件对铸模应力场的影响.计算结果表明,通过合理配置锌锭模各部分的壁厚,可以有效地降低锌锭模上部应力,防止裂纹产生.此外锌锭模结构不宜采用散热筋,应采用较大的圆角半径,上部不宜设置法兰.本文研究结果可作为大型锌锭、铝锭等模具设计制造的理论参考.
In order to reduce thermal stress of large-scale zinc ingot die and extend its using life, by FEM, in- fluences of cooling ribs and wall thickness and corner radius and upper flange to die＇ s stress field were ana- lyzed. Simulating results show that stress of upper die can be effectively reduced and cracks can be prevented by rationally allocating various part＇ s wall thickness of zinc die. In addition, when designing zinc die＇ s struc- ture, it should is suggested that cooling ribs should not be appropriated, comer radius should be larger, upper flange not be set. The results can be theory reference for zinc ingot and aluminium ingot die designing and making.
参考文献
| [1] | 徐掌印,姜银举,刘丽新,张庆升,吴卫东.球铁铝锭模材料热疲劳性能的研究[J].铸造技术,2007(05):606-609. |
| [2] | 陈永华.蠕墨铸铁在铝锭模生产中的应用[J].现代铸铁,2008(02):68-70. |
| [3] | 阎峰云,那元真,李波,马孝斌.球墨铸铁铝锭模具材料热处理工艺的选择[J].中国铸造装备与技术,2009(03):28-31. |
| [4] | 王立源.锌锭模制造问题探讨与研究[J].铸造技术,2001(01):23-25. |
| [5] | 贾泽春.出口美国铝锭模的工艺设计及铸造生产[J].铸造,2009(06):622-624. |
| [6] | 杨远平,严宏志.锌锭模热力行为数值模拟及失效分析[J].中南大学学报（自然科学版）,2011(05):1310-1315. |
| [7] | 杨远平,严宏志.基于数值模拟的锌锭模应力应变分析[J].热加工工艺,2009(23):91-94. |
| [8] | 杨远平,严宏志.锌锭模应力数值模拟及裂纹位置分析[J].铸造,2010(08):814-817. |
| [9] | Andreas Alexandrou;Francois Bardinet;Willem Loue .Mathematical and computational modeling of die filling in semisolid metal processing[J].Journal of Materials Processing Technology,1999(1/3):59-72. |
| [10] | 汪煦,赵玉涛,苏大为,周堃.ProCAST在金属型重力铸造充型和模具温度场中的应用[J].铸造,2008(12):1263-1266. |
| [11] | 杨宠,林汉同,刘瑞祥,陈立亮.铸件凝固过程应力场数值模拟技术[J].热加工工艺,2001(01):40-42. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%