| 摘要 |
The present invention provides a sliding nozzle device which is configured so as to reduce damage such as the roughening of the surface of a used plate and the chipping of the periphery of a nozzle hole. This sliding nozzle device is provided with a stationary metallic frame (20), a sliding metallic frame (30), and an opening/closing metallic frame (40) which holds the sliding metallic frame in a slidable manner. The sliding contact surfaces (33a, 46a) of sliding members (33, 46) which are provided to both the sliding metallic frame (30) and the opening/closing metallic frame (40) are in sliding contact with each other. The sliding contact surfaces (33a) of a sliding member of the sliding metallic frame are arranged at the front and rear in the sliding direction at a predetermined distance from each other, and the portion between the front and rear sliding contact surfaces (33a) is a recess (34). The sliding contact surfaces (46a) of the sliding member of the opening/closing metallic frame are provided at the front and rear in the sliding direction at a predetermined distance from each other, and the portion between the front and rear sliding contact surfaces (46a) is a recess (47). |
