摘要
根据法兰铸钢件的结构特点,设计了该铸钢件的铸造工艺方案。利用View-cast软件对该工艺方案进行了数值模拟。结果表明,铸件底部面积大,冷却快;铸件较高,中间处提前凝固;顶部冒口无法对铸件下部进行补缩,易在下部产生缩孔、缩松缺陷。通过改变分型面和浇注位置,同时将冒口改为保温冒口的方法,获得了较合理的铸造工艺方案。
The casting process of flange was designed and numerical simulated by View-Cast software.The results show that the cooling rate of the bottom of the casting is higher and the top riser can not provide feeder to the bottom of the casting,and then the defects can be found in this area.By changing the parting surface and pouring position,using the insulating riser,the optimum reasonable technology can be obtained.
出处
《热加工工艺》
CSCD
北大核心
2012年第5期54-57,共4页
Hot Working Technology
基金
河南理工大学引进人才基金项目(Y2009-1)
关键词
铸造工艺
缺陷
数值模拟
casting process
defects
numerical simulation
