摘要:
In order to simplify work of applying and releasing a surface pressure in a slide valve device constructed of a fixed plate, a slide plate, a seal plate, and the like, provided is a slide valve device for automatic surface pressure application and a surface pressure application method therefor, the slide valve device including: a base frame (2) including a positioning member (51) for determining an arrangement location (X) of a seal case (21) and a stopper (52) for fixing the seal case (21) at the arrangement location (X); and a slide case (4) including a pusher (53) for sliding the seal case (21) together with the slide case (4) when sliding the slide case (4) in a surface pressure application direction.
摘要:
The present invention makes it possible to slide a surface pressure releasing plate and a surface pressure releasing bar relative to each other smoothly by compressing compression springs uniformly. A surface pressure applying device for a slide valve according to the present invention compresses compression springs (11) uniformly in applying and releasing surface pressure and makes a surface pressure releasing plate (13) and a surface pressure releasing bar (15) smoothly slide relative to each other by matching an arrangement center (A) of projections (14) on the surface pressure releasing plate (13) with an arrangement center (B) of the compression springs (11).
摘要:
To regulate a position of each of clampers by setting an entire width dimension of each of the clampers to be smaller than a flange diameter dimension of a submerged nozzle and to smooth replacement of a fresh submerged nozzle by providing a positioning liner, to thereby obtain a simple structure at a low cost, provided is a submerged nozzle supporting-replacing mechanism, which is constituted to set an entire width dimension (L3) of each of clampers (20 and 21) to be smaller than a flange diameter dimension (L1) of a submerged nozzle (9) so as to position each of the clampers (20 and 21) by a positioning member (26), and so as to guide an upper surface (43) of a fresh submerged nozzle (9A) by a positioning liner (6), to thereby regulate a height position of the fresh submerged nozzle (9A) during movement in a horizontal direction thereof.
摘要:
A pressing means for pressing a slide plate against a fixed plate by uniform pressure has simple, strong construction and can be easily assembled. A slide gate valve unit includes a pair of pressing members 10 having a U-shaped cross section and capable of receiving protrusions 11 protruding from sides of a base frame secured to the lower surface of the bottom wall of a molten metal container and the lower surfaces of side parts of a slide case 4. Elastic members 12 are extended between upper parts 10a of the pressing members and the upper surfaces of the protrusions of the base frame. Side parts of the slide case 4 are supported on the upper surfaces of the lower parts 10b of the pressing members.
摘要:
A surface pressure releasing plate and a surface pressure releasing bar are slidable relative to each other smoothly by compressing compression springs uniformly. A surface pressure applying device for a slide valve according to the present invention compresses compression springs uniformly in applying and releasing surface pressure and makes a surface pressure releasing plate and a surface pressure releasing bar smoothly slide relative to each other by matching an arrangement center of projections on the surface pressure releasing plate with an arrangement center of the compression springs.
摘要:
The present invention relates to a discharge regulator of molten metal, which can be disposed approximately vertically at the bottom portion of a molten metal vessel, characterized in that the regulator consists of a rotary nozzle, a nozzle carrying brick and a sleeve or of a rotary nozzle and a nozzle carrying brick, two or more recessed notches or openings are provided in at least either one of said nozzle carrying brick and said sleeve, the surface of said nozzle opening of the rotary nozzle, which pierces through at least one nozzle hole, is supported slidably to and in close contact with the inner peripheral surface of said nozzle carrying brick or said sleeve, and said rotary nozzle is equipped with a rotary mechanism mounted in such a manner that the upper portion of said rotary nozzle is brought into contact with the molten metal.
摘要:
In order to simplify work of applying and releasing a surface pressure in a slide valve device constructed of a fixed plate, a slide plate, a seal plate, and the like, provided is a slide valve device for automatic surface pressure application and a surface pressure application method therefor, the slide valve device including: a base frame (2) including a positioning member (51) for determining an arrangement location (X) of a seal case (21) and a stopper (52) for fixing the seal case (21) at the arrangement location (X); and a slide case (4) including a pusher (53) for sliding the seal case (21) together with the slide case (4) when sliding the slide case (4) in a surface pressure application direction.
摘要:
To alleviate a bending stress to be applied to a lower nozzle, by joining a ring-shaped taper portion of the lower nozzle to a receiving taper portion of a receiving member, to thereby prevent generation of a vertical cracking, and further to improve a sealing property of the lower nozzle and a submerged nozzle with a seal material, provided are a submerged nozzle supporting-replacing mechanism and a lower-nozzle/submerged-nozzle sealing method, in which, when an upper surface of a submerged nozzle (6) is joined through clampers (5) with respect to a lower surface of a lower nozzle (4) supported by a receiving member (3) of a lower frame (2) of a slide valve device (1), a receiving taper portion (3A) of the receiving member (3) is joined to a ring-shaped taper portion (4A) of the lower nozzle (4), to thereby suppress a vertical cracking.
摘要:
This invention concerns an apparatus for enabling exchange of an immersion nozzle seated in a tundish and used for casting of a molten metal from a molten metal container to be carried out very easily and quickly, which apparatus comprises rails (4) laid so as to approximate closely to a molten metal casting outlet nozzle (2) of a molten metal container (1), a self-propelling truck (5) adapted to travel on the rails (4), retainer parts (7) mounted on the truck (5) and adapted to retain an immersion nozzle (3) at the leading terminal thereof, and a movable arm (6) provided with a cleaning device (18) for cleaning the lower terminal surface of the outlet nozzle (2) after removal of a used immersion nozzle.
摘要:
A clamping and fixing apparatus of a refractory-made plate 7 for a slide gate valve for controlling a molten steel flow comprising:providing plate-clamping fixtures 12, 12 rotatably in its plane direction and in contact with the inner side of a casing 13 and a guide piece 11, at both the ends at the plate side, of the guide piece 11 being supported by at least one guide 16 provided within the longer edge sides of the casing 13 which houses the refractory-made plate 7;inserting idly a nut 10 into a dovetail groove recess 11a provided in the other area of said guide piece 11;mounting to said nut 10 a bolt 9 which is rotatable passing through said casing 13; andproviding said fixtures 12, 12 with respective surfaces of contacting the plate 7.