公开(公告)号：EP2633926B1

公开(公告)日：2020-03-11

申请号：EP10858857.5

申请日：2010-11-24

申请人： Zhu, Shucheng

发明人： WANG, Xibin ,  CAO, Guochao

IPC分类号： B22D7/00 ,  B22D7/04 ,  B22D7/06 ,  B22D7/10 ,  B22D9/00 ,  B22D27/04

公开(公告)号：EP2633926A1

公开(公告)日：2013-09-04

申请号：EP10858857.5

申请日：2010-11-24

申请人： Zhu, Shucheng

发明人： WANG, Xibin ,  CAO, Guochao

IPC分类号： B22D7/04 ,  B22D27/04 ,  B22C9/06

CPC分类号： B22C9/06 ,  B22C9/065 ,  B22D7/00 ,  B22D7/064 ,  B22D7/10 ,  B22D9/006 ,  B22D27/04

摘要： An annular clean metal casting mold has a mold body which includes a cold bottom mold plate and a peripheral cold mold plate in connection with the cold bottom mold plate. An annular hot preservation layer is disposed inside the peripheral cold mold plate. A cyclic clean crystalline region is formed between the peripheral cold mold plate and the annular hot preservation layer. A sacrificial crystalline region is formed inside the cyclic hot preservation layer. As the outer race of the annular clean crystallization zone contacts large area of the peripheral low cold mold plate, releasing heat rapidly, while the inner race contacts the annular hot preservation layer 3, heat dissipation is extremely slow, naturally result in forming orientational crystallization. The vast majority of impurities and segregations in the liquid metal are gathered at the portion contacting with the annular hot preservation layer, and thus after the liquid metal is solidified, the gathered impurities and segregations can be removed easily, to obtain a clean casting ingot.

摘要翻译： 环形清洁金属铸模具有模体，模体包括冷底模板和与冷底模板连接的周边冷模板。 周围冷模板内设有环形保温层。 在外围冷模板和环形热保存层之间形成循环清洁的结晶区域。 在循环热保存层内部形成牺牲晶体区域。 由于环形清洁结晶区的外圈接触周边低冷模板大面积，迅速散热，内圈接触环形保温层3，散热极其缓慢，自然会形成定向结晶。 液态金属中的大部分杂质和偏析集中在与环形保温层接触的部分，因此在液态金属凝固后，易于除去聚集的杂质和偏析，从而获得洁净的铸锭。