公开(公告)号：US10507523B2

公开(公告)日：2019-12-17

申请号：US15559438

申请日：2016-02-24

Applicant: VESUVIUS CRUCIBLE COMPANY

Inventor： Dominique Janssen ,  Roger Maddalena ,  Jose Simoes ,  Babu Patel ,  Sunilkumar C. Pillai

IPC: B22D41/02 ,  C04B35/10 ,  C04B35/04 ,  C04B35/622 ,  B22D41/08

Abstract: A lining for a metallurgical vessel is configured to have an engineered porosity. The lining contains a plurality of regions, each extending in a primary plane of the lining, each region having a differing value of total pore or perforation area as measured in a primary plane of the lining. The lining may be used to form part or all of the working surface of the floors or walls of the vessel. In casting use the lining produces an oxidation buffering layer at an interphase of metal melt extending from the interface between metal melt and the walls and floor of the metallurgical vessel, such that when in casting use, the metal flow rate in said oxidation buffering layer is substantially nil, and the concentration of endogenous inclusions, in particular oxides, in said oxidation buffering layer is substantially higher than in the bulk of the metal melt.

公开(公告)号：US20180078999A1

公开(公告)日：2018-03-22

申请号：US15559438

申请日：2016-02-24

Applicant: VESUVIUS CRUCIBLE COMPANY

Inventor： Dominique Janssen ,  Roger Maddalena ,  Jose Simoes ,  Babu Patel ,  Sunilkumar C. Pillai

IPC: B22D41/02 ,  C04B35/10 ,  C04B35/04 ,  C04B35/622 ,  B22D41/08

Abstract: A lining for a metallurgical vessel is configured to have an engineered porosity. The lining contains a plurality of regions, each extending in a primary plane of the lining, each region having a differing value of total pore or perforation area as measured in a primary plane of the lining. The lining may be used to form part or all of the working surface of the floors or walls of the vessel. In casting use the lining produces an oxidation buffering layer at an interphase of metal melt extending from the interface between metal melt and the walls and floor of the metallurgical vessel, such that when in casting use, the metal flow rate in said oxidation buffering layer is substantially nil, and the concentration of endogenous inclusions, in particular oxides, in said oxidation buffering layer is substantially higher than in the bulk of the metal melt.