US3921274A - Assembling apparatus for sliding nozzle mounted on the bottom of a ladle - Google Patents

Assembling apparatus for sliding nozzle mounted on the bottom of a ladle Download PDF

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Publication number
US3921274A
US3921274A US540926A US54092675A US3921274A US 3921274 A US3921274 A US 3921274A US 540926 A US540926 A US 540926A US 54092675 A US54092675 A US 54092675A US 3921274 A US3921274 A US 3921274A
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US
United States
Prior art keywords
refractory
frame
carriage
clamped condition
condition check
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US540926A
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English (en)
Inventor
Tetsuya Yoshihara
Hajime Sawada
Tetsuo Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
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Publication of US3921274A publication Critical patent/US3921274A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53022—Means to assemble or disassemble with means to test work or product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53087—Means to assemble or disassemble with signal, scale, illuminator, or optical viewer

Definitions

  • the apparatus comprises a carriage equipped with a rest on which is fixedly mounted a metal holder for a refractory plate of a sliding nozzle, a frame having an assembling station and a clamped condition check station and carrying thereon to carriage to be movable between and stoppable at either of the two stations, an expansion mechanism for supporting the body portion of the carriage directly on the frame at least at the clamped condition check station thereof, and pressure means arranged above the clamped condition check station of the frame and comprising a pressure member having a plurality of radial arms each provided on its lower end surface with a pin of a predetermined raised dimension, a hydraulic cylinder supported by a beam mounted on the frame and having a rod from one end of which is suspended the pressure member through a spherical seat bearing, and a stopper rod with a pointer having its one end attached to one of the radial arms and the other end fitted into a stopper holder attached to the beam.
  • FIG.1 A first figure.
  • the present invention relates to a sliding nozzle refractory component parts assembling apparatus which is designed so that a refractory bottom plate and a refractory sliding plate constituting a sliding nozzle mounted on the bottom of a bottom pouring ladle for molten iron or the like are respectively inserted. clamped and secured to and removed from a metal bottom plate holder and a metal sliding plate holder.
  • the present invention relates to such a refractory component parts assembling apparatus which is designed so that the refractory bottom plate and refractory sliding plate of a sliding nozzle are set in their predetermined raised positions relative to their metal bottom plate holder and sliding plate holder in a manner that prevents the floating of the refractory plates during the clamping thereof, and moreover the set refractory plates can be checked accurately against their predetermined raised positions.
  • FIG. I of the accompanying drawings a refractory bottom plate I and a refractory sliding plate 2 are respectively inserted, clamped and secured to a metal bottom plate holder 3 and a metal sliding plate holder 4 for assembling into a sliding nozzle assembly.
  • each of the refractory bottom plate I and the refractory sliding plate 2 is inserted into the associated holder to project to a predetermined height from the edges of the latter to allow the contact surfaces of the refractory plates 1 and 2 to be closely pressed against each other, and con sequently the refractory plates are assembled in the resulting sliding nozzle to provide an accurate surface-tosurface contact therebetween.
  • the sliding nozzle assembly employs a spring mechanism to ensure a close contact between the component parts, particularly between the mating surfaces of the refractory bottom plate 1 and the refractory sliding plate 2, unless the refractory bottom plate I and the refractory sliding plate 2 are raised to a certain height from their respective metal holders 3 and 4, the closeness of the contact between the refractory plates is reduced and this gives rise to a leakage of molten iron, etc. while in service. thus leading to a serious accident.
  • the shock due to the pounding of the refractory plates with the rubber hammer tends to cause cracking of the refractory plates.
  • the actual operation involving the pounding of the refractory plates with the rubber hammer presents an operational problem of requiring at least two operators for the hammering and clamping operations.
  • an assembling apparatus for refractory component part of a sliding nozzle mounted on the bottom of a ladle comprising a carriage equipped with a rest on which is fixedly mounted a metal holder for a refractory bottom plate or a refractory sliding plate of a sliding nozzle, a frame having an assembling station and a clamped condition check station and carrying thereon the carriage to be movable between and stoppable at either of the two stations. an expansion mechanism for supporting the body portion of the carriage directly on the frame at least at the clamped condition check station thereof.
  • pressure means arranged above the clamped condition check station of the frame and comprising a pressure member having a plurality of radial arms each provided on its lower end surface with a pin of a predetermined raised dimension.
  • a hydraulic cylinder supported by a beam mounted on the frame and having a rod from one end of which is suspended the pressure member through a spherical seat bearing. and a stopper rod with a pointer having its one end attached to one of the radial arms and the other end fitted into a stopper holder attached to the beam.
  • FIG. l is a sectional side view of a conventional rotary type sliding nozzle mounted on the bottom of a ladle, showing particularly the relative positions of the component parts of the sliding nozzle.
  • FIG. 2 is a front view of an embodiment of an assembling apparatus according to the present invention.
  • FIG. 3 is a side view of FIG. 2.
  • FIG. 4 is a plan view of the carriage used in the embodiment of FIG. 2.
  • FIG. 5 is a section taken through the central portion of the carriage at a clamped condition check station (8), showing the relative positions of the clamped condition checking pressure member. the refractory piece and the metal holder which are in condition for clamped condition checking operation.
  • FIG. 6 is a sectional view similar to FIG. 5, showing the relative positions of the same elements during the clamped condition checking operation.
  • the assembling apparatus for refractory component parts of a sliding nozzle comprises. a carriage 6 provided on the upper surface thereof with a rest adapted for mounting in a predetermined position thereon a metal holder 3 or 4 for a refractory bottom plate I or a refractory sliding plate 2 of a sliding nozzle such as shown in FIG. 1, a frame 7 having an assembling station A and a clamped condition check station B and adapted for carrying the carriage 6 to be movable between and stoppable at either of the two stations without any rolling.
  • extension devices 9 adapted for directly supporting a body portion 8 of the carriage 6 on the frame 7 at least at the clamped condition check station of the frame 7.
  • a pressure member 12 including a plurality of radial arms II each provided on its lower end surface with a pin of a predetermined raised dimcnsion and suspended by way of a spherical seat bearing from the front end of a rod of a hydraulic cylinder 14 supported by a beam I3 mounted on the frame 7, with one of the arms I] being provided with a stopper rod I8 having a pointer I7 and fitted into a stopper holder 19 attached to the beam 13.
  • the rest 5 on the upper surface of the carriage 6 is divided into two parts so that the metal holder 3 or 4 which has been mounted and conveyed on a jig for easy conveyance may be placed as such on the rest 5, and the thus placed metal holder may be removed by means of the jig after the assembling has been checked.
  • the illustrated rest 5 is constructed so that either of the metal holders 3 and 4 may be placed on the rest 5, and the rest 5 may be modified as desired in accordance with the specification of a sliding nozzle to be assembled.
  • the carriage 6 is movable on a pair of rails 22 on the frame 7 by means of wheels 2], so that not only rolling of the carriage 6 moving between the assembling station A and the clamped condition check station B is prevented. but also it is possible to accurately move the carriage 6 to a predetermined halting position at each of the two stations.
  • a plurality of expansion devices 9 Arranged between the wheels 21 and the body portion 8 of the carriage 6 are a plurality of expansion devices 9 each consisting of a spring or the like, so that when a refractory subassembly consisting of a refractory bottom plate or a refractory sliding plate inserted in the associated metal holder is mounted on the carriage rest 5, as shown in FIG. 5, the body portion 8 of the carriage 6 is raised from the upper surface of the frame 7 to movably hold the carriage 6, whereas when the carriage 6 is subjected to a pressing pressure at the clamped condition check station as shown in FIG. 6 and in the manner that will be described later. the carriage body portion 8 is directly supported on the frame 7.
  • the pressure means 20 arranged above the clamped condition check station B of the frame 7 include a pressure member 12 which, in the illustrated embodiment. comprises the four crossed arms II and which is tiltably (oscillatably) suspended from the front end of the rod I5 of the hydraulic cylinder I4 through the spherical scat bearing 16. and each of the arms 11 is provided on its lower end surface with a pin I0 ofa raised dimension corresponding to a predetermined raised height of the refractory bottom plate I or the refractory sliding plate 2 with respect to the metal holder 3 or 4.
  • one of the arms II is provided at its front end with the stopper rod 18 which has the pointer 17 mounted on a part thereof. and the stopper rod I8 is fitted into the stopper hold 19 mounted on the beam 13 and provided with index marks so as to indicate the elevated position of the pressure member 12 from the upper surface of the frame 7, and at the same time the stopper rod 18 limits the rotational movement of the pressure member 12.
  • the metal holder 4 is for example placed on the rest 5 of the carriage 6, the refractory sliding plate 2 is fitted into the metal holder 4 after a suitable number of height adjusting soft metal plates such as aluminum plates have been placed between the lower surface of the refractory sliding plate and the metal holder 4 and, after fitting caulking pieces.
  • the refractory plate locking supports of the metal holder 4 are roughly locked by means of screws for temporary clamping.
  • the hydraulic cylinder 14 is operated to lower the pressure member 12 so that the pressure member 12 presses the refractory sliding plate 2 as shown in FIG. 6.
  • the body portion 8 of the carriage 6 is directly supported by the frame 7 through the ac tion of the expansion devices 9. Consequently. the same functional effects may be obtained, if. instead of mounting the expansion devices 9 on the carriage 6 as in the illustrated embodiment. the expansion devices 9 are mounted in such a manner that the rails 22 are caused to go down when the expansion devices 9 are pressed at the clamped condition check station B.
  • the pins 10 are all brought into contact with the metal holder 4 in the abovementioned manner so that if the lower surface of the arms 11 are all in contact with the upper surface of the refractory sliding plate 2, it is an indication that the refractory sliding plate 2 and the metal holder 4 are in the properly set condition, and in this case the pointer 17 indicates the 0 mark or the mark corresponding to a preselected value.
  • the condition of contact between the pins and the metal holder 4 and between the arms 11 and the refractory sliding plate 2 can be easily determined, and moreover any irregularities such as ,the inclination of the refractory plate with respect to its metal holder, incorrectly raised height of the refractory plate with respect to the metal holder as well as the degree of such irregularities can be easily determined by the indication of the pointer 17 to immediately take the necessary measures to correct the irregularities.
  • the present invention has a great industrial utility value in that particularly in assembling a sliding nozzle mounted on the bottom of a ladle, the sliding nozzle can be assembled in such a manner that each of the refractory plates is always maintained in a predetermined raised position with respect to its metal holder to prevent floating of the refractory plates during a clamping operation, and moreover the degree of irregularity of the set conditions can be easily grasped.
  • An assembling apparatus for refractory component parts of a sliding nozzle mounted on the bottom of a ladle comprising a carriage having a rest for securely mounting thereon a metal holder for a refractory bottom plate or a refractory sliding plate of said sliding nozzle, a frame having an assembling station and a clamped condition check station and adapted for mounting thereon said carriage to be movable without rolling between and stoppable at either of said stations.
  • expansion means adapted for directly supporting the body portion of said carriage on said frame at least at said clamped condition check station thereof.
  • pressure means disposed above said clamped condition check station of said frame and including a pressure member suspended through a spherical seat bearing from one end of a rod of a hydraulic cylinder carried on a beam mounted on said frame.
  • said pressure member having a plurality of radial arms each thereof provided on the front end lower surface thereof with a pin of a predetermined raised dimension. one of said radial arms provided with a rotation stopper rod having a pointer and fitted into a rotation stopper holder attached to said beam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
US540926A 1974-01-25 1975-01-14 Assembling apparatus for sliding nozzle mounted on the bottom of a ladle Expired - Lifetime US3921274A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49010221A JPS50104135A (ro) 1974-01-25 1974-01-25

Publications (1)

Publication Number Publication Date
US3921274A true US3921274A (en) 1975-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
US540926A Expired - Lifetime US3921274A (en) 1974-01-25 1975-01-14 Assembling apparatus for sliding nozzle mounted on the bottom of a ladle

Country Status (7)

Country Link
US (1) US3921274A (ro)
JP (1) JPS50104135A (ro)
BE (1) BE824776A (ro)
DE (1) DE2502482A1 (ro)
FR (1) FR2258920B1 (ro)
GB (1) GB1460426A (ro)
LU (1) LU71683A1 (ro)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114473462B (zh) * 2022-04-14 2022-06-17 江苏高凯精密流体技术股份有限公司 喷嘴组件安装平台及其应用设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438744A (en) * 1944-02-12 1948-03-30 Crompton & Knowles Loom Works Tool for setting bushings or inserts
US3872565A (en) * 1974-05-09 1975-03-25 Atomic Energy Commission Reactor vessel seal service fixture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438744A (en) * 1944-02-12 1948-03-30 Crompton & Knowles Loom Works Tool for setting bushings or inserts
US3872565A (en) * 1974-05-09 1975-03-25 Atomic Energy Commission Reactor vessel seal service fixture

Also Published As

Publication number Publication date
FR2258920B1 (ro) 1976-12-31
LU71683A1 (ro) 1975-06-24
BE824776A (fr) 1975-05-15
FR2258920A1 (ro) 1975-08-22
JPS50104135A (ro) 1975-08-16
GB1460426A (en) 1977-01-06
DE2502482A1 (de) 1975-07-31

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