SLIDE VALVE DEVICE FOR AUTOMATIC SURFACE PRESSURE APPLICATION

摘要

The purpose of the present invention is to obtain a more compact slide valve device as a result of shortening the stroke of a drive device. This slide valve device for automatic surface pressure application has a configuration whereby: the drive stroke of the drive device can be greatly reduced in comparison to conventional slide valve devices; and the existing drive device can continue to be used when the slide valve device is updated, as a result of having a coupling switching means (20) for switching the coupling position of the drive device (7) and a slide case (4), between a first coupling position (discharge position) for molten metal discharge and a second coupling position (surface pressure operation position) for surface pressure application/release.