公开(公告)号：US09989313B2

公开(公告)日：2018-06-05

申请号：US15083316

申请日：2016-03-29

申请人： WUGANG REFRACTORY CO., LTD.

发明人： Xueqin Hong ,  Xianming Tian ,  Hui Zhou ,  Zhiqiang Wang ,  Qinxue Ma ,  Zhongxing Lei ,  Zhiming Cao ,  Huasheng Liu ,  Qing Zhao ,  Bihui Yi ,  Yuhan Diao

IPC分类号： F27D1/16 ,  B22D41/02 ,  F27D1/00 ,  F27D5/00

CPC分类号： F27D1/1621 ,  B22D41/02 ,  F27D1/0006 ,  F27D1/0033 ,  F27D1/16 ,  F27D2005/0075

摘要： A smelting ladle and a method for improving use efficiency thereof. The smelting ladle includes a housing, a working layer, and a permanent layer. The method includes: 1) rebuilding the working layer to have an outer layer and an inner layer, the inner layer being a consumable working layer which contacts with molten steel and steel slag, and the outer layer being a circulating working layer which contacts with the permanent layer or directly contacts with the housing; 2) allowing the smelting ladle to work, when the thickness of the consumable working layer is reduced to be between 0 and 20 mm, removing a residue of the consumable working layer and masoning a new consumable working layer for the smelting ladle; and 3) repeating 2) until the circulating working layer reaches a designed service life thereof, and casting a new circulating working layer for the smelting ladle.