WO2004018127A1 - 薄板用溶鋼の連続鋳造方法 - Google Patents
薄板用溶鋼の連続鋳造方法 Download PDFInfo
- Publication number
- WO2004018127A1 WO2004018127A1 PCT/JP2003/010673 JP0310673W WO2004018127A1 WO 2004018127 A1 WO2004018127 A1 WO 2004018127A1 JP 0310673 W JP0310673 W JP 0310673W WO 2004018127 A1 WO2004018127 A1 WO 2004018127A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mgo
- clinker
- cao
- molten steel
- steel
- Prior art date
Links
Classifications
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- 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
- B22D41/02—Linings
-
- 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
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/18—Stopper-rods 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
-
- 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
- B22D41/50—Pouring-nozzles
- B22D41/52—Manufacturing or repairing thereof
-
- 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
- B22D41/50—Pouring-nozzles
- B22D41/52—Manufacturing or repairing thereof
- B22D41/54—Manufacturing or repairing thereof characterised by the materials used therefor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/013—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics containing carbon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/06—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on oxide mixtures derived from dolomite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
- C04B35/62665—Flame, plasma or melting treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5463—Particle size distributions
- C04B2235/5472—Bimodal, multi-modal or multi-fraction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9676—Resistance against chemicals, e.g. against molten glass or molten salts against molten metals such as steel or aluminium
Definitions
- the present invention relates to a method for continuously producing molten steel for a thin plate, and particularly to a refractory used for the method.
- aluminum killed steel which is produced as high-grade steel such as thin steel sheets, when casting from a tundish into a mold.
- aluminum killed steel which is produced as high-grade steel such as thin steel sheets, when casting from a tundish into a mold.
- Much effort has been put into preventing alumina deposition on the fabrication nozzles used. Alumina adhering to the production nozzle is coalesced into large inclusions, which are taken into the piece together with the molten steel flow, causing defects in the piece and deteriorating the quality.
- argon gas is blown into molten steel from the inner surface of a manufacturing nozzle to physically prevent alumina from adhering.
- this method if the amount of argon gas blown is too large, bubbles are taken in the piece and become pinholes, resulting in defects. Therefore, it is not always possible to take sufficient measures because there are restrictions on the amount of gas injected.
- No. 3 discloses a production nozzle using a refractory in which graphite is combined with a dolomite clinker whose main component is C 30 and] ⁇ 40.
- An object of the present invention is to produce aluminum killed steel by applying a refractory containing CaO and MgO-based clinker having CaO as a mineral phase having an effect of preventing alumina adhesion to a nozzle for continuous production. ⁇ ⁇ ⁇ To significantly reduce the amount of large inclusions in the piece.
- Figure 1 shows an electron micrograph of the Ca ⁇ MgO clinker.As shown in this electron micrograph, CaO and MgO do not form a compound, so CaO Inside the system clinker, MgO is independently dispersed as small particles of MgO crystals.
- Fig. 2 shows an example of aluminum-killed steel fabrication using a refractory using a CaO-Mg-based clinker as shown in the electron micrograph of Fig. 1 as a refractory for aluminum-killed steel fabrication.
- the figure shows the correlation between the average particle size of the MgO particles in the cleaning force and the size of the Mg0-based inclusions in the piece. From the figure, it was found that the size of the Mg ⁇ crystal particles and the size of the inclusions in the Clinic force had a positive correlation, and that the size of the MgO crystal particles and the size of the inclusions were similar.
- the CaO and Mg-based clinker in the refractory is dispersed in the steel in contact with the molten steel.
- the alumina reacts with the Ca in the clinker to produce a low melt of the A12O3 ⁇ Ca0 series, which flows out of the refractory surface by the molten steel flow.
- MgO in clinker is less reactive than CaO, so it can easily flow out into molten steel with its particle size. Since MgO has a high melting point and is hard, if large particles are mixed into the piece, it causes scratches during rolling and causes a quality problem of the piece. In addition, MgO crystals in the CaO ⁇ Mg ⁇ -based clinker often flow out into molten steel with the particle size remaining, and as shown in Fig. 2 above, the size of the MgO crystal particles is small. Often the size of the MgO-based inclusions inside. Therefore, in order to reduce large inclusions in the piece, it is necessary to make the MgO crystal grains in the C a O • Mg ⁇ based clinker finer.
- the present invention addresses the problem of inclusions containing MgO as a main component due to refractories containing CaO.Mg ⁇ -based clinker in the continuous formation of molten steel for thin plates in clinker particles.
- a refractory containing not less than 20% by mass of CaO'MgO-based clinker that makes 60% or more of the contained MgO crystals have a particle size of 50zm or less. This has been solved by using it.
- the inclusion of inclusions with a diameter of 50 m or more is preferably as small as possible in a thin plate, and the smaller the size of the MgO crystal in the Ca0 MgO-based clinker, the better. If there is, it will not be a problem in the construction of general aluminum-killed steel for thin plates. Therefore, the particle size of the MgO crystal in the CaO.MgO-based linker is preferably 50% or less and 60% or more. Good. In particular, for tin cans for beverage cans, there must be no inclusions with a diameter of 50 xm or more.
- a clinker containing smaller MgO crystal particles for example, particles having an average particle size of MgO crystal of 20 m or less.
- the particle size of the MgO crystals in the clinker is defined by the diameter when the electron micrograph of the clinker is separated into MgO crystal particles and CaO particles by an image analyzer, and the area of the MgO crystal particles is converted into a circle. It is a thing.
- CaO / MgO clinkers There are three types of CaO / MgO clinkers, synthetic dolomite clinker, natural dolomite clinker, and electrofused Ca ⁇ * MgO clinker, depending on the method of preparation.
- Synthetic dolomite crine is produced by firing particles of a mixture of Ca (OH) 2 and Mg (OH) 2 at a high temperature.
- Natural Dolomite Cleaner is made by firing dolomite produced naturally at high temperature.
- the electrofused C aO ⁇ MgO clinker is produced by arc-dissolving a raw material containing a C a 0 component and an MgO component, and cooling and solidifying the raw material.
- the changing the size of the MgO crystal grains in the synthetic de port chromite clinker one is possible by changing the particle size of the starting material, material of Mg (OH) 2 particle By reducing the diameter and improving the dispersibility, it is possible to reduce the particle size of the MgO crystal particles in the cleaning power.
- clinker may be prepared from a raw material in a production area where a required particle diameter is obtained. Furthermore, in the case of electrofused CaO / MgO clinker, the size of MgO crystal particles can be controlled by adjusting the cooling rate. Dolomite clinker produced from natural dolomite has a nearly constant mass ratio of chemical components of Ca0 and MgO of about 60:40. On the other hand, the composite dolomite clinker and the fused CaO / MgO clinker can be changed to any ratio.
- the content of MgO is preferably not more than 50% by mass.
- a molded product obtained by adding an organic binder to a CaO ⁇ MgO-based clinker and uniformly kneading the mixture is molded at about 1,600. Baking or, for example, adding a mixture of CaO and MgO-based clinker with 10 to 40% of graphite and phenolic resin to form a uniformly kneaded compound, and reducing and firing the compact at about 1 000 ° C To be prepared.
- a refractory having an alumina adhesion preventing function can be obtained.
- Refractories that do not contain graphite are suitable for refractories with relatively small thermal shock applied during use, such as upper nozzles, sliding nozzles, lower nozzles, and stopper heads, while refractories containing graphite are immersion nozzles. It is suitable for refractories having a relatively large thermal shock such as a long nozzle and a mouth stopper, but it is not particularly limited, and it is important to appropriately adjust the amount of graphite according to the use conditions.
- the present invention provides a CaO′MgO-based cleaner containing at least CaO as a mineral phase in an amount of 20% by mass or more from the viewpoint of the effect of preventing adhesion of alumina.
- ZrO 2 clinker, Zr ⁇ 2 CaO clinker, MgO clinker or the like may be used in combination.
- care must be taken in grain size so that clinker flows out into molten steel and does not affect quality.
- the clinker one, F e 2 ⁇ 3, S I_ ⁇ 2, A l 2 ⁇ 3, Z R_ ⁇ although no problem to 2 and adding small amount, a large amount to the reduction or alumina deposition of corrosion additive If added, the content is preferably 10% by mass or less, because the prevention function may be reduced.
- the refractory used in the production of the refractory of the present invention is a C aO.MgO-based refractory, which is a submersible nozzle, an upper nozzle, a lower nozzle, a sliding nozzle, a long nozzle, a stopper head, a long stopper, and other structural nozzles.
- the effect can be exerted even if it is partially used for the object to be applied. In particular, it is more effective to apply the method to a part where alumina adheres frequently.
- the function can be sufficiently exerted even if it is applied not only to the entire nozzle but at least to the inner hole that contacts the molten steel.
- the composition according to the present invention When applied only to the inner hole, the composition according to the present invention may be arranged in the inner hole and molded simultaneously with the material of the outer body, or the refractory of the present invention may be molded into a sleeve-ring shape and fired. It may be post-interpolated. In the case of a stopper head or a long stopper, it may be applied only to the outer peripheral surface that comes into contact with molten steel.
- the present invention is a refractory suitable for the construction of aluminum-killed steel, particularly aluminum-killed steel for thin sheets, but is effective even when applied to A 1 — Si-killed steel A 1 — Ti-killed steel, Ti-killed steel, etc. There is. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 shows an electron micrograph of a CaO.MgO-based clean solution.
- FIG. 2 shows the correlation between the average particle size of MgO particles in the clinker and the size of the MgO-based inclusions in the piece.
- M g ⁇ crystal ABCDEFGH 1 Average particle size: 4.000 8 1 5 3 1 4 2 ⁇ 5 0 6 1 6 9 7 8 8 8
- a to E indicate clinkers applied to the present invention, and E indicates that 60% or more of the MgO crystal particles in the linker have a particle size of 50 m or less.
- F to I are clinkers applied to Comparative Examples, in which 60% or more of the MgO crystal particles have a particle size of more than 50 m.
- Table 2 shows the composition ratios of the materials produced by adding graphite and phenolic resin to each of the clinkers shown in Table 1, and the frequency of occurrence of scratches during rolling at each composition ratio by an index.
- the immersion nozzle for the test was made by applying the compound shown in Table 2 to the body containing zirconia / graphite material in the powder line and the inner hole, and forming pressure of 1 000! ⁇ Ji! ! It was produced by IP molding with ⁇ and reduction firing at a maximum of 1000.
- This immersion nozzle was applied to the construction of aluminum killed steel, and the quality of the obtained pieces was investigated.
- the manufacturing conditions were as follows: pot capacity was 250 ton, TD capacity was 45 ton, and stripping speed was 1.0 to 1.3 mZ min.
- the obtained piece was rolled to a thickness of 2 mm, and the frequency of flaws caused by MgO-based inclusions was investigated.
- the occurrence frequency was indexed with the frequency of Example 1 being 100. The smaller the index, the better the quality of the piece. From these results, it was found that when 60% or more of the MgO crystal particles contained in the clinker had a particle size of 50 / im or less, the quality of each piece was lower than in the case where the average particle size exceeded 50. It turned out to be excellent.
- Table 3 using the C aO-'MgO-based clinker A to I shown in Table 1, to obtain a homogeneously kneaded blend was breath molding the blend at a molding pressure of 1 200 k gZcm 2, 1 By firing at 600, an upper nozzle was prepared.
- the upper nozzle was used for producing aluminum killed steel under the same conditions as in Example 1. As a result, it was found that when 60% or more of the MgO crystal particles contained in the clinker had a particle size of 50 or less, the quality of each piece was excellent.
- the particle diameter of the MgO crystals existing as inclusions in the flakes obtained by the continuous manufacturing method of molten steel for a thin plate of the present invention becomes small, and even when the thin plate is rolled, Frequency of occurrence is reduced. Therefore, the quality defect rate of the manufactured thin plate is reduced, and the manufacturing cost is reduced.
- the present invention is applicable to continuous production of molten steel for thin plates, particularly aluminum killed steel for thin plates.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0313620-5A BR0313620B1 (pt) | 2002-08-22 | 2003-08-22 | material refratário contendo clìnquer a base de cao.mgo para lingotamento contìnuo de aço em fusão para chapas metálicas. |
MXPA05002053A MXPA05002053A (es) | 2002-08-22 | 2003-08-22 | Vaciado continuo de acero fundido para hoja metalica. |
US10/524,620 US20100038050A1 (en) | 2002-08-22 | 2003-08-22 | Continuous casting of molten steel for sheet metal |
EP03792816A EP1541260B1 (en) | 2002-08-22 | 2003-08-22 | Method for continuous casting of molten steel for thin sheet |
AU2003257674A AU2003257674A1 (en) | 2002-08-22 | 2003-08-22 | Method for continuous casting of molten steel for thin sheet |
DE60324438T DE60324438D1 (de) | 2002-08-22 | 2003-08-22 | Verfahren zum stranggiessen von geschmolzenem stahl zu dünnblech |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-242731 | 2002-08-22 | ||
JP2002242731A JP4331924B2 (ja) | 2002-08-22 | 2002-08-22 | 薄板用溶鋼の連続鋳造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004018127A1 true WO2004018127A1 (ja) | 2004-03-04 |
Family
ID=31944076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/010673 WO2004018127A1 (ja) | 2002-08-22 | 2003-08-22 | 薄板用溶鋼の連続鋳造方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US20100038050A1 (ja) |
EP (1) | EP1541260B1 (ja) |
JP (1) | JP4331924B2 (ja) |
KR (1) | KR100597932B1 (ja) |
CN (1) | CN1319676C (ja) |
AU (1) | AU2003257674A1 (ja) |
BR (1) | BR0313620B1 (ja) |
DE (1) | DE60324438D1 (ja) |
MX (1) | MXPA05002053A (ja) |
WO (1) | WO2004018127A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005087406A1 (ja) | 2004-03-15 | 2005-09-22 | Krosakiharima Corporation | 連続鋳造ノズル |
CN100372633C (zh) * | 2003-08-22 | 2008-03-05 | 黑崎播磨株式会社 | 钢的连续铸造用浸渍管及使用其的钢的连续铸造方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4519109B2 (ja) * | 2006-06-26 | 2010-08-04 | 日新製鋼株式会社 | ストッパー制御型浸漬ノズル |
KR101057638B1 (ko) | 2009-08-19 | 2011-08-19 | (주)포스코켐텍 | 고내소화성 돌로마 클링커 및 그 제조방법 |
CN109759574B (zh) * | 2019-03-27 | 2020-10-16 | 中天钢铁集团有限公司 | 一种低杨氏模量化的浸入式水口内衬材料 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6475155A (en) * | 1987-09-17 | 1989-03-20 | Asahi Glass Co Ltd | Block for tundish weir |
JPH1025167A (ja) * | 1996-07-08 | 1998-01-27 | Kurosaki Refract Co Ltd | マグネシア質粗粒を用いた流し込み施工用耐火物 |
JPH11285792A (ja) * | 1998-03-31 | 1999-10-19 | Akechi Ceramics Kk | 連続鋳造用ノズル |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3345191A (en) * | 1964-03-25 | 1967-10-03 | Jernkontoret The Swedish Ironm | Dolomite sinter and a process of its production |
JPS61141663A (ja) * | 1984-12-11 | 1986-06-28 | 川崎製鉄株式会社 | 黒鉛質塩基性耐火物 |
JPS61256961A (ja) * | 1985-05-02 | 1986-11-14 | 新日本化学工業株式会社 | カルシア質クリンカ−とその製造方法 |
JPH01289549A (ja) * | 1988-05-16 | 1989-11-21 | Kawasaki Refract Co Ltd | 鋼の連続鋳造用ノズル |
FR2643631B1 (fr) * | 1989-02-27 | 1993-02-12 | Lorraine Laminage | Revetement refractaire de repartiteur de coulee continue des metaux |
JPH08103865A (ja) * | 1994-10-03 | 1996-04-23 | Sumitomo Metal Ind Ltd | 溶融金属の注湯用ノズル |
TW300861B (ja) * | 1995-05-02 | 1997-03-21 | Baker Refractories | |
AU760214B2 (en) * | 1998-01-28 | 2003-05-08 | Krosaki Corporation | Alumina-magnesia-graphite type refractory |
JP2000334550A (ja) * | 1999-05-25 | 2000-12-05 | Sumitomo Metal Ind Ltd | 連続鋳造用浸漬ノズルのコーティング剤 |
CN2385820Y (zh) * | 1999-07-29 | 2000-07-05 | 宝山钢铁(集团)公司 | 中间包过滤器 |
-
2002
- 2002-08-22 JP JP2002242731A patent/JP4331924B2/ja not_active Expired - Fee Related
-
2003
- 2003-08-22 US US10/524,620 patent/US20100038050A1/en not_active Abandoned
- 2003-08-22 KR KR1020057002702A patent/KR100597932B1/ko not_active IP Right Cessation
- 2003-08-22 CN CNB038199610A patent/CN1319676C/zh not_active Expired - Fee Related
- 2003-08-22 MX MXPA05002053A patent/MXPA05002053A/es active IP Right Grant
- 2003-08-22 DE DE60324438T patent/DE60324438D1/de not_active Expired - Lifetime
- 2003-08-22 AU AU2003257674A patent/AU2003257674A1/en not_active Abandoned
- 2003-08-22 WO PCT/JP2003/010673 patent/WO2004018127A1/ja active Application Filing
- 2003-08-22 EP EP03792816A patent/EP1541260B1/en not_active Expired - Lifetime
- 2003-08-22 BR BRPI0313620-5A patent/BR0313620B1/pt not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6475155A (en) * | 1987-09-17 | 1989-03-20 | Asahi Glass Co Ltd | Block for tundish weir |
JPH1025167A (ja) * | 1996-07-08 | 1998-01-27 | Kurosaki Refract Co Ltd | マグネシア質粗粒を用いた流し込み施工用耐火物 |
JPH11285792A (ja) * | 1998-03-31 | 1999-10-19 | Akechi Ceramics Kk | 連続鋳造用ノズル |
Non-Patent Citations (1)
Title |
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See also references of EP1541260A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100372633C (zh) * | 2003-08-22 | 2008-03-05 | 黑崎播磨株式会社 | 钢的连续铸造用浸渍管及使用其的钢的连续铸造方法 |
WO2005087406A1 (ja) | 2004-03-15 | 2005-09-22 | Krosakiharima Corporation | 連続鋳造ノズル |
Also Published As
Publication number | Publication date |
---|---|
BR0313620A (pt) | 2005-06-21 |
CN1678415A (zh) | 2005-10-05 |
EP1541260B1 (en) | 2008-10-29 |
JP2004082133A (ja) | 2004-03-18 |
JP4331924B2 (ja) | 2009-09-16 |
KR20050058336A (ko) | 2005-06-16 |
EP1541260A4 (en) | 2006-05-17 |
KR100597932B1 (ko) | 2006-07-06 |
AU2003257674A8 (en) | 2004-03-11 |
DE60324438D1 (de) | 2008-12-11 |
BR0313620B1 (pt) | 2011-08-23 |
EP1541260A1 (en) | 2005-06-15 |
AU2003257674A1 (en) | 2004-03-11 |
CN1319676C (zh) | 2007-06-06 |
MXPA05002053A (es) | 2005-09-12 |
US20100038050A1 (en) | 2010-02-18 |
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