| 摘要 |
A process for manufacturing a sliding plate for a valve closure on metallurgical melt containers may include forming the sliding plate by: integrating in a pressing procedure with a press, a pre-pressed annular insert made of a refractory ceramic material in a base body made of a refractory ceramic material; and removing the sliding plate from the press, resulting in an annular gap between a circumferential surface of the insert and a corresponding surface of the base body. The process may also include impregnating a transition area including the annular gap between the insert and the base body with an impregnation agent, and tempering the plate at temperatures between 200° C. and 700° C. to cause the impregnation agent to create a non-positive direct connection between the base body and the insert. |
