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WO2018116784A1 - Plaque pour dispositif à buse coulissante - Google Patents

Plaque pour dispositif à buse coulissante Download PDF

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Publication number
WO2018116784A1
WO2018116784A1 PCT/JP2017/043170 JP2017043170W WO2018116784A1 WO 2018116784 A1 WO2018116784 A1 WO 2018116784A1 JP 2017043170 W JP2017043170 W JP 2017043170W WO 2018116784 A1 WO2018116784 A1 WO 2018116784A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
sheet
heat
resistant material
sliding
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.)
Ceased
Application number
PCT/JP2017/043170
Other languages
English (en)
Japanese (ja)
Inventor
岡田　剛
康平 谷
英俊 神尾
善太 王丸
昭二 規工川
幸司 瓦田
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.)
Krosaki Harima Corp
Original Assignee
Krosaki Harima Corp
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 Krosaki Harima Corp filed Critical Krosaki Harima Corp
Priority to JP2017562788A priority Critical patent/JP7017935B2/ja
Publication of WO2018116784A1 publication Critical patent/WO2018116784A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • 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
    • 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
    • B22D41/30—Manufacturing or repairing thereof
    • B22D41/32—Manufacturing or repairing thereof characterised by the materials used therefor

Definitions

  • the present invention relates to a plate structure used in a sliding nozzle device for controlling a flow rate when discharging molten metal from a molten metal container.
  • the plate for the sliding nozzle device (hereinafter also simply referred to as “plate”) is a plate-like structure having an inner hole for discharging molten metal.
  • the sliding nozzle device controls the flow rate of the molten metal by sliding the two or three independent plates relative to each other and changing the area of the opening portion where the inner holes of the plates overlap. .
  • the plate is exposed to high temperatures above the melting point of the molten metal in the vicinity of its inner hole, and since it is used repeatedly, it is severe for refractory materials, such as undergoing a large temperature change between the high temperature range and the atmospheric temperature range. Used in conditions.
  • the plate is fixed to the metal frame of the sliding nozzle device, so that no molten metal leakage (hereinafter referred to as “bare metal” or “leakage steel”) occurs between the sliding surfaces of the plates.
  • bare metal hereinafter referred to as “bare metal” or “leakage steel”
  • this pressure is also referred to as “surface pressure”.
  • this surface pressure for example, in Patent Document 1, a back cushion material (cushion material + cushioning material + (Including metal sheets or multilayer metal sheets) is shown to be larger than the plate outline, that is, attached to the entire back surface of the plate.
  • Such a plate may have various cracks, damage to the sliding surface, opening between the sliding surfaces, etc. during or after use, reducing the durability of the plate and inserting metal between the sliding surfaces.
  • the problem is occurring. Above all, the problem of inserting metal between sliding surfaces is a serious problem with the potential to lead to a large-scale steel leakage accident.
  • the metal insert between the sliding surfaces is pointed out as a result of gaps between the sliding surfaces due to damage caused by wear, chemical erosion, oxidation, etc. of the sliding surfaces due to swelling or chipping of the inner hole edge. Has been.
  • Patent Document 2 As one of countermeasures against damage between such sliding surfaces, for example, in Patent Document 2, there is no swelling or chipping of the edge portion of the inner hole, which is caused by thermal expansion accompanying molten steel passing through the inner hole. It is proposed to provide a concave surface with a depth of 0.1% to 2% of the thickness of the plate brick so as to surround the nozzle hole (inner hole) at the edge of the inner hole on the sliding surface side of the plate brick. ing. By this concave surface, it is said that the compressive stress due to the warpage of the plate brick caused by thermal expansion is relieved, and the wear of the sliding surface stroke part and the chipping of the nozzle hole edge part can be reduced.
  • Patent Document 3 proposes a plate refractory formed by molding a composition mainly composed of silicon iron nitride 0.1 to 50 wt%, the balance being a refractory material and a carbon material. This silicon iron nitride is said to improve the oxidation resistance of the plate and reduce damage to the sliding surface due to oxidation.
  • the plate is also fastened and fixed from a direction perpendicular to the longitudinal direction (hereinafter also referred to as “lateral direction”).
  • This lateral fixing is generally performed by pressing the vicinity of the four corners of the plate plane shape diagonally.
  • this lateral position is shifted between two or three plates, chipping is likely to occur at the shifted portion of the inner hole edge of each plate, which may cause damage between the sliding surfaces.
  • Patent Document 4 discloses that a frame (main body) is formed in the vicinity of the discharge port on the back side of the plate (corresponding to the “inner hole” in the present invention).
  • Patent Document 4 This corresponds to the “gold frame” in the present invention), and is centered (ie, placed at an accurate position) by being fitted into a recess formed.
  • the convex portion of Patent Document 4 is formed by bending a rib, and does not exert pressure (surface pressure) in the longitudinal direction (surface pressure application side).
  • JP-A-2-169175 Japanese Patent Laid-Open No. 11-57989 Japanese Patent Laid-Open No. 2-108456 Japanese Patent No. 4446598
  • the problem to be solved by the present invention is to suppress or reduce the occurrence of metal squeezing between the sliding surfaces of the plates in a form that does not depend on any damage to the sliding surfaces or the occurrence of gaps associated therewith.
  • the present invention is a plate for a sliding nozzle device described in 1 to 5 below. 1.
  • the length of the surface opposite to the sliding surface (hereinafter referred to as “rear surface”) is twice the length from the short side end to the center of the inner hole starting from the short side end.
  • the area where the sheet-like heat-resistant material is installed or the thickness of the plate body is thicker than other areas is in contact with at least a part of the metal frame of the sliding nozzle device for fixing the back side of the plate.
  • the sliding nozzle device plate The sliding nozzle device plate. 2.
  • the plate is one or both of an upper plate mounted in contact with the fixed metal frame on the molten steel container side of the sliding nozzle device and a lower plate mounted in contact with the lower slide metal frame.
  • the plate for a sliding nozzle apparatus as described. 3.
  • the sheet-like heat-resistant material is either a sheet obtained by molding a fibrous inorganic material or a plate-like metallic material, or a multilayer structure thereof, according to either 1 or 2 above.
  • the thickness of the plate body thicker than the other region or the thickness of the sheet-like heat-resistant material protruding in the thickness direction of the plate from the other region is 0.1 mm or more and 1.6 mm or less. 4.
  • the sliding nozzle device plate according to any one of 1 to 3 above. 5).
  • the sheet-like heat-resistant material is either a sheet formed mainly from a fibrous inorganic material, a plate-like metallic material, or the surface of another sheet-like heat-resistant material that is a multilayer structure thereof. 5.
  • the sliding nozzle device plate according to any one of 1 to 4, which is installed.
  • Patent Document 2 since the inner hole surface through which the molten steel passes has the highest temperature and the expansion of the plate increases, the inner surface of the sliding surface of the plate tends to protrude (phenomenon). It tries to suppress the phenomenon by denting the vicinity. However, although such a phenomenon may actually be observed, the end of the upper and lower plates may come into strong contact with each other, and the sliding surface near the center (near the inner hole) may open. They discovered.
  • cushioning materials and iron plates are often installed on the back of the plate to disperse the surface pressure for the purpose of preventing cracks, etc., and these cushioning materials and iron plates are used during hot use. Due to various factors such as shrinkage and deformation, dimensional fluctuation in the direction of surface pressure is likely to occur, which also contributes to warpage in the longitudinal direction of the plate.
  • the flat portion near the dowel portion on the back surface of the plate protrudes in a direction perpendicular to the sliding surface with respect to the sliding surface more than the other flat portions, so that the sliding at least near the inner hole is achieved.
  • Correct the opening of the surface that is, reduce the gap.
  • a part or all of the area near the dowel around the inner hole protrudes in the plate thickness direction (vertical direction) from the other flat part of the back surface.
  • a sheet-like heat-resistant material is installed, or the thickness of the plate body in the region is made thicker than other regions.
  • the sheet-like heat-resistant material is installed, or the region where the thickness of the plate body is thicker than other regions is a fixed metal frame above the sliding nozzle device for fixing the back side of the upper plate, And at least a part of one or both of the lower slide metal frames that fix the back side of the lower plate.
  • the sheet-like heat-resistant material includes a metal frame for mounting the plate (a fixed metal frame (reference numeral 10 in FIG. 3) in the case of the upper plate, and a slide metal frame (reference numeral 11 in FIG. 3) in the case of the lower plate. )) Is installed at a position where it can contact at least a part of the surface and transmit the pressure in the direction perpendicular to the sliding surface.
  • the sheet-like heat insulating material is installed so as to transmit the crimping force between the metal frame more strongly than the region other than the vicinity of the dowel portion.
  • the sheet-like heat-resistant material only needs to have heat resistance enough to maintain shape retention at the temperature during use.
  • the dowel portion means a convex portion around the inner hole (for example, a portion 2a in FIG. 1A) and other nozzles such as an upper nozzle and a lower nozzle fitted on the convex portion on the back surface of the plate. This refers to a portion that is combined with a portion that contacts (for example, the portion 2b in FIG. 1A).
  • the region in the vicinity of the dowel portion is twice the length from the short side end portion to the center of the inner hole (Ls in FIG. 1A (a)) where the plate sliding direction starts from the short side end portion.
  • the plate width direction is in the entire range of the sliding direction side range, that is, the hatched portion in FIG. 1A (a).
  • the maximum region in the plate sliding direction is, for example, in the sliding nozzle device composed of two upper and lower plates, the longest portion on the long side of the overlapping portion during casting is the short length of the opposite plate. Depending on the side edge. In other words, there is a case where there is no opposite plate in the long side region beyond the short side end in the sliding direction. This is to avoid the fact that it acts in the direction of opening the sliding surface on the opposite side of the moving direction.
  • the short side means the short side with reference to the inner hole of the plate
  • the long side means the long side with reference to the inner hole of the plate (see FIG. 1A (a)).
  • the sheet-like heat-resistant material is installed in at least a part of the region in the vicinity of the dowel part (part or all of the region in the vicinity of the dowel part).
  • the dowel part part or all of the region in the vicinity of the dowel part.
  • this area includes (3) a ring-shaped area around the dowel section (see FIGS.
  • the sheet-like heat-resistant material of the present invention is placed on the surface of “other sheet-like heat-resistant material” or, if not, the height of “other sheet-like heat-resistant material” is higher than the height. Install to be.
  • the thickness of the plate body in the area where the sheet-like heat-resistant material is installed can be made thicker than other areas.
  • a sheet-like heat-resistant material or a ceramic sheet may be further affixed to the region where the thickness of the main body is thicker than other regions, but it is not necessary to affix it. Good.
  • it is preferable that one or more layers of these sheets are attached.
  • the thickness of the plate body as the second means thicker than other regions, when molding the plate, the height of the molding surface of the mold is changed according to the thickness. The method of processing etc. can be taken.
  • the other contractible sheet-like heat-resistant material when there is another contractible sheet-like heat-resistant material and the sheet-like heat-resistant material of the present invention is placed on the surface thereof, the other contractible sheet-like heat-resistant material is used.
  • the stacked sheet-like heat-resistant material of the present invention protrudes from the periphery of other heat-shrinkable sheet-like heat-resistant materials.
  • the installation part of the stacked sheet-like heat-resistant material of the present invention is small, the surrounding area does not shrink completely and the crimping force is distributed over a wide area so that the stacked sheet-shaped heat-resistant material of the present invention protrudes. There is a possibility of diminishing the effects of. Therefore, it is more preferable that the thickness of the stacked sheet-shaped heat-resistant material of the present invention is larger than the contractible allowance of other sheet-shaped heat-resistant materials.
  • the sheet-like heat-resistant material either a sheet obtained by molding a fibrous inorganic material, a plate-like metallic material, or a multilayer structure thereof can be used.
  • the material is not shrinkable or as small as possible.
  • at least the sheet-like heat-resistant material during operation is installed. It is preferably a single-layer or multi-layer structure such as a refractory or a metal having heat resistance enough to remain at a temperature higher than the expected temperature at the place.
  • the thickness of this target area protrudes in the vertical direction from the other flat parts on the back of the plate. Optimization may be made according to the characteristics of the heat-resistant material, the characteristics of other sheet-shaped heat-resistant materials when stacked, or individual conditions such as operating conditions such as temperature and time.
  • the thickness of the sheet-like heat-resistant material the present inventors firstly stated that the maximum bending allowance due to deformation is about 0.3 mm when the surface pressure is maximum, and decreases to about 0 when the surface pressure decreases.
  • the bending allowance may be further increased, and the total bending of the upper and lower plates may be about 1.6 mm. This was confirmed by simulation and actual operation under the same conditions as in the following experiment. Note that “total” is the sum of the deflection dimensions of each of a plurality of plates (for example, upper and lower plates), in other words, even if the thicknesses of the thickened portions of each plate are different. This means the sum of the increased thickness (thickness protruding) of the thick region of the plate.
  • the gap between the plates can be adjusted by adjusting the degree of thickness increase (projecting thickness) on the other plate. It is possible to suppress or prevent the occurrence of.
  • the sheet-shaped heat-resistant material of the present invention is used. It was confirmed from the experimental results (described later) that it is assumed that the sheet-shaped heat-resistant materials are installed in a stacked manner, and that the minimum thickness of the sheet-like heat-resistant material is preferably about 0.1 mm or more.
  • the maximum thickness of the sheet-like heat-resistant material should be about 1.6 mm or less.
  • this 1.6mm thickness is placed on another sheet of about 3mm thickness (approx. 0.5mm shrinkable) and an iron plate of about 0.24mm thickness on top of it to install a sheet-like heat-resistant material
  • the thickness is considered to be the limit thickness where cracks in the plate width direction are not expected to occur.
  • a gap is likely to be formed at both ends in the sliding direction, like a “lever” where the plate is the outermost sheet-like heat-resistant material.
  • the thickness exceeds 1.6 mm under different conditions, for example, when the deformation of the metal frame is large, the installation is such that the sliding surface direction of the plate is greatly inclined, or the plate thickness is large. It may also be acceptable.
  • the thicknesses of the thick areas and the other areas are different.
  • the relative thickness may be adjusted as described above without considering the thickness of the sheet-like heat-resistant material or the like.
  • the thickness of the sheet-like heat-resistant material, etc., and the contractibility may be different between the thickening area and other areas.
  • the thickness should be adjusted within the range of 0.1 mm to 1.6 mm. That's fine.
  • the degree of increase in thickness of the region to be thickened may be adjusted according to the size of the contractibility of the sheet-like heat-resistant material or the like, that is, the degree of increase in thickness may be increased as the contractibility increases.
  • the outer shape of the inner hole 1 and the dowel portion are both circular, but these shapes are not limited to a circular shape, and may be, for example, an elliptical shape.
  • Experimental Example A is an experimental example in which the state related to the gap between the sliding surfaces of the plates in the state of the prior art, that is, the “sheet-like heat-resistant material” of the present invention is not installed, is observed by the difference in pressure applied between the sliding surfaces. It is.
  • the experimental conditions such as shape and pressure are as follows.
  • the shape of the plate is as follows: long side (length in sliding direction): about 414 mm, short side (length in the direction perpendicular to the long side (width direction)): about 209 mm, plane part thickness: about 35 mm (upper and lower plates) ), About 40 mm (medium plate), inner hole diameter: 75 mm ⁇ , the material of the plate is selected as a refractory of about 75% by mass of Al 2 O 3 , about 10% by mass of ZrO 2 and about 5% by mass of carbon, Its physical properties are a sonic elastic modulus of 40 GPa and a room temperature bending strength of 13 MPa.
  • the plate was fixed by holding metal from the four corners of the edge and fixing bolts to a tightening torque of 20 N ⁇ m, and the surface pressure was applied stepwise up to a total load of less than 6 tf.
  • FIG. 5 (a) shows the measurement result of the pressure distribution detected by the sensor sheet as seen from the sliding surface of the plate
  • FIG. 5 (b) shows the surface pressure at each measurement point with the number in FIG. 5 (a). Shows the relationship between magnitude and pressure.
  • the pressure near the center is lower than the outside, and the difference increases proportionally as the surface pressure increases. That is, it is suggested that the vicinity of the center centering on the inner hole increases the total load but does not contribute to the increase of the surface pressure. Since the inner hole portion is a space and exists in the vicinity of the center, it can be understood that it is the most easily deformed place in the plate as a structure.
  • Experimental Example B is an example of observing the effect on the pressure between the sliding surfaces when the “sheet-like heat insulating material” of the present invention is installed around the dowels of both the upper and lower plates.
  • an actual sliding nozzle device composed of two upper and lower plates was used, and pressure-sensitive paper was placed between the sliding surfaces of the plates to add a constant surface pressure (6 tf). The pressure states were compared.
  • Experimental conditions such as shape are the same as in Experimental Example A.
  • Comparative Example 1 another sheet having a contraction allowance of about 0.5 mm (20%) and a thickness of about 3 mm and an iron plate of 0.24 mm are placed on almost the entire back surface of the plate excluding the dowel portion.
  • Example 1 the other sheet and the 0.24 mm iron plate on the other sheet were installed on almost the entire back surface of the plate excluding the dowel part (this part is the same as Comparative Example 1).
  • This is an example in which a ring-shaped 0.24 mm iron plate with a diameter of 190 mm ⁇ is installed in a circular area centered on the inner hole (see FIG. 7A).
  • Example 2 is an example in which an iron plate having a thickness of 0.5 mm as a “sheet-like heat insulating material” is installed in the same structure and region as Example 1 (see FIG. 7A).
  • FIG. 7B is a diagram (photograph) showing the surface pressure distribution that appears on the pressure-sensitive paper. The darker the color, the higher the pressure, and the lighter the color, the lower the pressure. In both examples, the pressure tended to decrease as the area approached the inner hole, but the color of the example was darker than the comparative example as a whole. The contour of the inner hole can be observed along with the tendency to be deep. It can also be seen that Example 2 was darker than Example 1, that is, the pressure was higher. From this result, it can be seen that in both Examples 1 and 2, higher pressure was applied around the inner hole, that is, near the dowel, than in the comparative example, and there was no gap.
  • Example C is the actual operation in Comparative Example 1 of Example B and Example 1 (0.24 mm (0.48 mm in total) on both upper and lower plates), Example 2 (both upper and lower plates) 0.5 mm (1 mm in total), and Example 3 (0.1 mm (0.2 mm in total) on both the upper and lower plates) and Example 4 with different thickness of the iron plate, Example 4 ( Between the sliding surfaces when 0.8 mm (1.6 mm total iron plate) on both the upper and lower plates and Example 5 (0.1 mm iron plate only on one upper and lower plates) are installed around the dowel It is the example which observed the bullion insertion suppression effect of.
  • the experimental conditions such as the shape are the same as in Experimental Examples A and B. In all of Examples 1, Example 2, Example 3, Example 4, and Example 5, there was no metal bar, and no significant or unusual damage was caused to the plate. In Comparative Example 1, the bullion invaded a part of the periphery of the dowel between the sliding surfaces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

Le but de la présente invention est de supprimer ou de réduire les occurrences d'insertion de lingot entre des surfaces coulissantes d'une plaque sous une forme qui n'est pas causée par des dommages de cette surface coulissante de la plaque ou des occurrences d'espaces qui les accompagnent. Ainsi, dans la présente invention, un matériau résistant à la chaleur en forme de feuille (3) est disposé sur une partie ou l'intégralité de la zone entourant les parties de cheville (2a, 2b) à la périphérie d'un trou interne dans la surface (ci-après la " surface arrière ") sur le côté opposé à la surface coulissante, de manière à faire saillie dans la direction de l'épaisseur de la plaque plus que d'autres parties de surface plates de la surface arrière; ou un corps de plaque principal présente une zone ayant une épaisseur supérieure à celle d'autres zones de la plaque, et le matériau résistant à la chaleur en forme de feuille est prévu; ou la zone ayant une épaisseur supérieure à celle d'autres zones du corps de plaque principal est en contact avec au moins une partie d'un cadre métallique pour un dispositif de buse coulissante fixant le côté de surface arrière de la plaque.
PCT/JP2017/043170 2016-12-21 2017-11-30 Plaque pour dispositif à buse coulissante Ceased WO2018116784A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017562788A JP7017935B2 (ja) 2016-12-21 2017-11-30 スライディングノズル装置用のプレート

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-248179 2016-12-21
JP2016248179 2016-12-21

Publications (1)

Publication Number Publication Date
WO2018116784A1 true WO2018116784A1 (fr) 2018-06-28

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PCT/JP2017/043170 Ceased WO2018116784A1 (fr) 2016-12-21 2017-11-30 Plaque pour dispositif à buse coulissante

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JP (1) JP7017935B2 (fr)
TW (1) TWI655980B (fr)
WO (1) WO2018116784A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221009A (en) * 1975-08-11 1977-02-17 Shinagawa Refractories Co Structures of refractory brick for high temperature slide members impregnated with gas generating matter
JPS55116758U (fr) * 1979-02-09 1980-08-18
US5470048A (en) * 1994-08-29 1995-11-28 Krosaki Corporation Sliding nozzle plate-metal frame fixing structure
JPH105986A (ja) * 1996-06-26 1998-01-13 Toshiba Ceramics Co Ltd 溶融金属排出用スライドゲ−トプレート

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09122898A (ja) * 1995-11-07 1997-05-13 Kurosaki Refract Co Ltd スライディングノズル装置におけるプレートの金枠への固定構造
JPH10193082A (ja) * 1997-01-17 1998-07-28 Kawasaki Refract Co Ltd スライディングノズルプレート
MY129237A (en) 1998-03-17 2007-03-30 Stopinc Ag Valve plate and a sliding gate valve at the outlet of a vessel containing molten metal
JP2008080384A (ja) 2006-09-28 2008-04-10 Kurosaki Harima Corp スライディングノズル用のプレート状耐火物
CN102235821B (zh) * 2011-05-20 2013-05-08 中冶华天工程技术有限公司 组合供风喷嘴、回转窑及其制备方法
EP2604363A1 (fr) * 2011-12-16 2013-06-19 Vesuvius Crucible Company Scellement intumescent pour appareil de coulée du métal
EP3154726B1 (fr) * 2014-06-11 2018-08-15 Arvedi Steel Engineering S.p.A. Busette pour brame mince pour distribuer des hauts débits

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221009A (en) * 1975-08-11 1977-02-17 Shinagawa Refractories Co Structures of refractory brick for high temperature slide members impregnated with gas generating matter
JPS55116758U (fr) * 1979-02-09 1980-08-18
US5470048A (en) * 1994-08-29 1995-11-28 Krosaki Corporation Sliding nozzle plate-metal frame fixing structure
JPH105986A (ja) * 1996-06-26 1998-01-13 Toshiba Ceramics Co Ltd 溶融金属排出用スライドゲ−トプレート

Also Published As

Publication number Publication date
TW201829091A (zh) 2018-08-16
TWI655980B (zh) 2019-04-11
JP7017935B2 (ja) 2022-02-09
JPWO2018116784A1 (ja) 2019-10-24

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