A pouring metallic plug stick clamping mechanism for cast steel wheels. The mechanism includes: a cast iron frame, a movable adjusting groove, an internal fixing shaft, a first white ceramic ball, a second white ceramic ball, a third white ceramic ball, a retaining spring, a pressure regulating bolt, a control press button, a sector shaped panel, a metallic plug stick, and a blocking iron piece.

A pouring metallic plug stick clamping mechanism for cast steel wheels. The mechanism includes: a cast iron frame, a movable adjusting groove, an internal fixing shaft, a first white ceramic ball, a second white ceramic ball, a third white ceramic ball, a retaining spring, a pressure regulating bolt, a control press button, a sector shaped panel, a metallic plug stick, and a blocking iron piece.

Control device (10) for a metallurgical vessel stopper-rod, operable to switch between a manual mode and an automatic mode, the stopper-rod being manually actuated by an operator in the manual mode for a manual control of a molten metal flow, while in the automatic mode, the stopper-rod is actuated by the driving element (20) for an automatic control of the molten metal flow, the device (10) comprising: a rotating member (110) pilotable about an axis (X); a hand lever (120) pilotable about the axis (X); a coupling mechanism (130) connecting the rotating member (110) and the hand lever (120), the coupling mechanism (130) being structured so that in a disengaged state, the rotating member (110) and the hand lever (120) are both rotatable about the axis (X) independently, while in an engaged state, the hand lever (120) and the rotating member (110) rotate together about the axis (X) of rotation.

Control device (10) for a metallurgical vessel stopper-rod, operable to switch between a manual mode and an automatic mode, the stopper-rod being manually actuated by an operator in the manual mode for a manual control of a molten metal flow, while in the automatic mode, the stopper-rod is actuated by the driving element (20) for an automatic control of the molten metal flow, the device (10) comprising: a rotating member (110) pilotable about an axis (X); a hand lever (120) pilotable about the axis (X); a coupling mechanism (130) connecting the rotating member (110) and the hand lever (120), the coupling mechanism (130) being structured so that in a disengaged state, the rotating member (110) and the hand lever (120) are both rotatable about the axis (X) independently, while in an engaged state, the hand lever (120) and the rotating member (110) rotate together about the axis (X) of rotation.

A drip prevention device for a pressurized pouring furnace according to the present disclosure is a device 10 that prevents dripping of molten metal from a molten metal outlet of the pressurized pouring furnace The drip prevention device 10 includes: a stopper 20 that brings a lower end thereof into contact with the outlet so as to block the outlet, and is provided so as to be able to rotate about a central axis 20C of the stopper with no rotation angle limitation and move vertically above the outlet; a rotation motor 30 that rotates the stopper 20; a drip detection device 60 that detects dripping of molten metal from the outlet in a case where the dripping occurs; and a control device 70 that, in a case where a drip detection signal is received from the drip detection device 60, drives the rotation motor 30 to cause the stopper 20 to perform a predetermined rotation operation.

A drip prevention device for a pressurized pouring furnace according to the present disclosure is a device 10 that prevents dripping of molten metal from a molten metal outlet of the pressurized pouring furnace The drip prevention device 10 includes: a stopper 20 that brings a lower end thereof into contact with the outlet so as to block the outlet, and is provided so as to be able to rotate about a central axis 20C of the stopper with no rotation angle limitation and move vertically above the outlet; a rotation motor 30 that rotates the stopper 20; a drip detection device 60 that detects dripping of molten metal from the outlet in a case where the dripping occurs; and a control device 70 that, in a case where a drip detection signal is received from the drip detection device 60, drives the rotation motor 30 to cause the stopper 20 to perform a predetermined rotation operation.

A stopper (1) is provided that includes ridges (12) in contact with the slag in a tundish (60). Each ridge (12) has a radial extension (21) that is less than half a radius (20) of the stopper (1) measured at the ridge (12). The ridges (12) decrease the creation of vortices by the stopper (1) and increase thus its lifetime. The ridges (12) are disposed in quincunx along the lateral wall (10).

A stopper (1) is provided that includes ridges (12) in contact with the slag in a tundish (60). Each ridge (12) has a radial extension (21) that is less than half a radius (20) of the stopper (1) measured at the ridge (12). The ridges (12) decrease the creation of vortices by the stopper (1) and increase thus its lifetime. The ridges (12) are disposed in quincunx along the lateral wall (10).