WO1995013889A1 - Casting stainless steel strip on surface with specified roughness - Google Patents
Casting stainless steel strip on surface with specified roughness Download PDFInfo
- Publication number
- WO1995013889A1 WO1995013889A1 PCT/AU1994/000685 AU9400685W WO9513889A1 WO 1995013889 A1 WO1995013889 A1 WO 1995013889A1 AU 9400685 W AU9400685 W AU 9400685W WO 9513889 A1 WO9513889 A1 WO 9513889A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- casting
- microns
- range
- rolls
- metal
- Prior art date
Links
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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
- B22D11/0668—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating for dressing, coating or lubricating
-
- 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
-
- 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0648—Casting surfaces
- B22D11/0651—Casting wheels
Definitions
- This invention relates to the casting of steel strip. It has particular but not exclusive application to continuous casting of stainless steel strip in a twin roll caster.
- molten metal is introduced between a pair of contra-rotated horizontal casting rolls which are cooled so that metal shells solidify on the moving roll surfaces and are brought together at the nip between them to produce a solidified strip product delivered downwardly from the nip between the rolls.
- the term "nip" is used herein to refer to the general region at which the rolls are closest together.
- the molten metal may be poured from a ladle into a smaller vessel from which it flows through a metal delivery nozzle located above the nip so as to direct it into the nip between the rolls, so forming a casting pool of molten metal supported on the casting surfaces of the rolls immediately above the nip. This casting pool may be confined between side plates or dams held in sliding engagement with the ends of the rolls.
- Twin roll casting has been applied with some success to non-ferrous metals which solidify rapidly on cooling, for example aluminium.
- Our Australian Patent No 631728 discloses a method and apparatus which enables continuous casting of ferrous strip within 0.5 mm to 5 mm and apparatus of this type has been developed to the stage where it is possible to consistently produce good quality mild steel strip.
- there have been particular problems in casting austenitic stainless steel strip because of the marked tendency for such steel to suffer from cracking and repetitive surface depressions appearing as a surface defect generally known as "crocodile skin".
- the Arithmetic Mean Roughness Value which is generally indicated by the symbol R a .
- This value is defined as the arithmetical average value of all absolute distances of the roughness profile from the centre line of the profile within the measuring length l m .
- the centre line of the profile is the line about which roughness is measured and is a line parallel to the general direction of the profile within the limits of the roughness-width cut-off such that sums of the areas contained between it and those parts of the profile which lie on either side of it are equal.
- the Arithmetic Mean Roughness Value may be defined as
- a method of continuously casting metal strip of the kind in which a casting pool of molten metal is formed in contact with a moving casting surface such that metal solidifies from the pool onto the moving casting surface, wherein the metal is an austenitic stainless steel containing chromium and nickel in a ratio (Cr/Ni)-.-- of less than 1.60 and the casting surface has an Arithmetical Mean Roughness Value (R a ) of more than 2.5 microns. More particularly the Arithmetic Mean Roughness Value R a of the casting surface may be in the range 2.5 to 15 microns. The surface of this texture may be produced by the machining of regular ridges in the surface.
- the chromium to nickel ratio is no greater than 1.55. More specifically the invention provides a method of continuously casting metal strip of the kind in which molten metal is introduced into the nip between a pair of casting rollers via metal delivery nozzle disposed above the nip to create a casting pool of molten metal supported on casting surfaces of the rolls immediately above the nip and the casting rolls are rotated to deliver a solidified metal strip downwardly from the nip, wherein the metal is an austenitic stainless steel containing chromium and nickel in a ratio (Cr/Ni) of less than 1.60 and the casting surfaces of the rolls have an Arithmetical Mean Roughness Value (R a ) of greater than 2.5 microns.
- the metal is an austenitic stainless steel containing chromium and nickel in a ratio (Cr/Ni) of less than 1.60 and the casting surfaces of the rolls have an Arithmetical Mean Roughness Value (R a ) of greater than 2.5 microns.
- the casting surfaces of the rolls may have a texture of regular circumferential grooves with a texture depth in the range 10 microns to 60 microns and a groove pitch in the range 100 microns to 200 microns.
- the roll may have a texture of regularly spaced projections, which may take the form of pyramids or cones with pitch spacing in the range 100 to 200 microns and depth in the range 10 to 60 microns.
- the carbon, chromium and nickel contents of the steel be in the following ranges: Carbon - 0.04 - 0.06 % by weight Chromium - 17.5 - 19.5 % by weight Nickel - 8.0 - 10.0 % by weight.
- Figure 1 is a plan view of a twin roll continuous strip caster which may be operated in accordance with the present invention
- Figure 2 is a side elevation of the strip caster shown in Figure 1;
- Figure 3 is a vertical cross-section on the line 3-3 in Figure 1 ;
- Figure 4 is a vertical cross section on the line 4-4 in Figure 1;
- Figure 5 is a vertical cross-section on the line 5-5 of Figure 1;
- Figure 6 illustrates the textured surface of a casting surface used in a series of trial casts
- Figures 7 to 9 illustrate the results of the trial casts using steels of varying compositions.
- the illustrated caster comprises a main machine frame 11 which stands up from the factory floor 12.
- Frame 11 supports a casting roll carriage 13 which is horizontally movable between an assembly station 14 and a casting station 15,
- Carriage 13 carries a pair of parallel casting rolls 16 to which molten metal is supplied during a casting operation from a ladle 17 via a tundish 18 and delivery nozzle 19.
- Casting rolls 16 are water cooled so that shells solidify on the moving roll surfaces and are brought together at the nip between them to produce a solidified strip product 20 at the roll outlet.
- This product is fed to a standard coiler 21 and may subsequently be transferred to a second coiler 22.
- a receptacle 23 is mounted on the machine frame adjacent the casting station and molten metal can be diverted into this receptacle via an overflow spout 24 on the tundish or by withdrawal of an emergency plug 25 at one side of the tundish if there is a severe malformation of product or other severe malfunction during a casting operation.
- Roll carriage 13 comprises a carriage frame 31 mounted by wheels 32 on rails 33 extending along part of the main machine frame 11 whereby roll carriage 13 as a whole is mounted for movement along the rails 33.
- Carriage frame 31 carries a pair of roll cradles 34 in which the rolls 16 are rotatably mounted.
- Roll cradles 34 are mounted on the carriage frame 31 by interengaging complementary slide members 35, 36 to allow the cradles to be moved on the carriage under the influence of hydraulic cylinder units 37, 38 to adjust the nip between the casting rolls 16.
- the carriage is movable as a whole along the rails 33 by actuation of a double acting hydraulic piston and cylinder unit 39, connected between a drive bracket 40 on the roll carriage and the main machine frame so as to be actuable to move the roll carriage between the assembly station 14 and casting station 15 and vice versa.
- Casting rolls 16 are contra rotated through drive shafts 41 from an electric motor and transmission mounted on carriage frame 31.
- Rolls 16 have copper peripheral walls formed with a series of longitudinally extending and circumferentially spaced water cooling passages supplied with cooling water through the roll ends from water supply ducts in the roll drive shafts 41 which are connected to water supply hoses 42 through rotary glands 43.
- the rolls may typically be about 500 mm diameter and up to 1300 mm long in order to produce 1300 mm wide strip product.
- Ladle 17 is of entirely conventional construction and is supported via a yoke 45 on an overhead crane whence it can be brought into position from a hot metal receiving station.
- the ladle is fitted with a stopper rod 46 actuable by a servo cylinder to allow molten metal to flow from the ladle through an outlet nozzle 47 and refractory shroud 48 into tundish 18.
- Tundish 18 is also of conventional construction. It is formed as a wide dish made of a refractory material such as magnesium oxide (MgO) .
- MgO magnesium oxide
- One side of the tundish receives molten metal from the ladle and is provided with the aforesaid overflow 24 and emergency plug 25.
- the other side of the tundish is provided with a series of longitudinally spaced metal outlet openings 52.
- the lower part of the tundish carries mounting brackets 53 for mounting the tundish onto the roll carriage frame 31 and provided with apertures to receive indexing pegs 54 on the carriage frame so as to accurately locate the tundish.
- Delivery nozzle 19 is formed as an elongate body made of a refractory material such as alumina graphite. Its lower part is tapered so as to converge inwardly and downwardly so that it can project into the nip between casting rolls 16. It is provided with a mounting bracket 60 whereby to support it on the roll carriage frame and its upper part is formed with outwardly projecting side flanges 55 which locate on the mounting bracket.
- a refractory material such as alumina graphite.
- Nozzle 19 may have a series of horizontally spaced generally vertically extending flow passages to produce a suitably low velocity discharge of metal throughout the width of the rolls and to deliver the molten metal into the nip between the rolls without direct impingement on the roll surfaces at which initial solidification occurs.
- the nozzle may have a single continuous slot outlet to deliver a low velocity curtain of molten metal directly into the nip between the rolls and/or it may be immersed in the molten metal pool.
- the pool is confined at the ends of the rolls by a pair of side closure plates 56 which are held against stepped ends 57 of the rolls when the roll carriage is at the casting station.
- Side closure plates 56 are made of a strong refractory material, for example boron nitride, and have scalloped side edges 81 to match the curvature of the stepped ends 57 of the rolls.
- the side plates can be mounted in plate holders 82 which are movable at the casting station by actuation of a pair of hydraulic cylinder units 83 to bring the side plates into engagement with the stepped ends of the casting rolls to form end closures for the molten pool of metal formed on the casting rolls during a casting operation.
- the ladle stopper rod 46 is actuated to allow molten metal to pour from the ladle to the tundish through the metal delivery nozzle whence it flows to the casting rolls.
- the clean head end of the strip product 20 is guided by actuation of an apron table
- Apron table 96 hangs from pivot mountings 97 on the main frame and can be swung toward the coiler by actuation of an hydraulic cylinder unit 98 after the clean head end has been formed.
- Table 96 may operate against an upper strip guide flap 99 actuated by a piston and a cylinder unit 101 and the strip product 20 may be confined between a pair of vertical side rollers 102.
- the coiler is rotated to coil the strip product 20 and the apron table is allowed to swing back to its inoperative position where it simply hangs from the machine frame clear of the product which is taken directly onto the coiler 21.
- the resulting strip product 20 may be subsequently transferred to coiler 22 to produce a final coil for transport away from the caster.
- Ni ⁇ rent Ni + 0.31 Mn + 22.0 C + 14.2 N + Cu (2)
- Figure 8 reveals the influence of (Cr/Ni) eq ratio on heat transfer for a smooth substrate. It can be seen that the heat fluxes are relatively constant throughout solidification and most importantly, the magnitudes of the peak fluxes are much lower than those measured for a textured substrate ( Figure 7). This finding is in agreement with the observed solidification structure which is coarse at the surface. Although there are some variations in heat flux at different (Cr/Ni) eq ratios, there are no definite trends. However, with increasing time the heat fluxes approach similar values irrespective of (Cr/Ni) eq . This apparent lack of dependence of heat transfer on (Cr/Ni) eq ratio with a smooth substrate is in agreement with the observations of strip surface texture which was not influenced by (Cr/Ni) ⁇ q .
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95900015A EP0679114B2 (en) | 1993-11-18 | 1994-11-09 | Casting stainless steel strip on surface with specified roughness |
DE69419593T DE69419593T3 (en) | 1993-11-18 | 1994-11-09 | MOLDING A CONTINUOUS STEEL STRIP TO A SURFACE OF SPECIFIC ROUGHNESS |
DK95900015T DK0679114T4 (en) | 1993-11-18 | 1994-11-09 | Casting of stainless steel strips on surface with specified roughness |
KR1019950701830A KR100305291B1 (en) | 1993-11-18 | 1994-11-09 | How to cast steel strip |
AU81010/94A AU676101B2 (en) | 1993-11-18 | 1994-11-09 | Casting stainless steel strip on surface with specified roughness |
JP7514101A JPH08505811A (en) | 1993-11-18 | 1994-11-09 | Steel strip casting |
FI951985A FI101944B (en) | 1993-11-18 | 1995-04-26 | Casting of steel strips |
GR990402313T GR3031222T3 (en) | 1993-11-18 | 1999-09-16 | Casting stainless steel strip on surface with specified roughness. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPM2539 | 1993-11-18 | ||
AUPM253993 | 1993-11-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995013889A1 true WO1995013889A1 (en) | 1995-05-26 |
Family
ID=3777367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1994/000685 WO1995013889A1 (en) | 1993-11-18 | 1994-11-09 | Casting stainless steel strip on surface with specified roughness |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0679114B2 (en) |
JP (1) | JPH08505811A (en) |
KR (1) | KR100305291B1 (en) |
AT (1) | ATE182284T1 (en) |
DE (1) | DE69419593T3 (en) |
DK (1) | DK0679114T4 (en) |
ES (1) | ES2134427T5 (en) |
FI (1) | FI101944B (en) |
GR (1) | GR3031222T3 (en) |
TW (1) | TW276200B (en) |
WO (1) | WO1995013889A1 (en) |
ZA (1) | ZA949134B (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0740972A1 (en) * | 1995-05-05 | 1996-11-06 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Casting steel strip |
EP0796685A1 (en) | 1996-03-22 | 1997-09-24 | Usinor Sacilor | Process and apparatus for continuously casting a strand of inoxidable austenitic steel on a moving wall or in between two moving walls whose surfaces are grooved |
WO1998055251A1 (en) * | 1997-06-02 | 1998-12-10 | Ishikawajima-Harima Heavy Industries Company Limited | Amorphous or glassy alloy surfaced rolls for the continuous casting of metal strip |
WO2000007753A1 (en) * | 1998-08-07 | 2000-02-17 | Ishikawajima-Harima Heavy Industries Company Limited | Casting steel strip |
FR2792560A1 (en) * | 1999-04-22 | 2000-10-27 | Usinor | Continuous casting of stainless austenitic steel strips between rolls involves using rolls having surface comprising contacting circular or elliptical pits and inert gas soluble in steel around meniscus of molten metal |
US6679313B2 (en) * | 1999-03-26 | 2004-01-20 | Sollac | Process for manufacturing carbon-steel strip by twin-roll continuous casting, product produced and apparatus |
WO2004035247A1 (en) * | 2002-10-15 | 2004-04-29 | Voest-Alpine Industrieanlagenbau Gmbh & Co | Method for continuously producing a thin steel strip |
US6942013B2 (en) | 1998-08-07 | 2005-09-13 | Lazar Strezov | Casting steel strip |
US7073565B2 (en) | 1999-02-05 | 2006-07-11 | Castrip, Llc | Casting steel strip |
KR100650967B1 (en) * | 1996-03-22 | 2007-01-31 | 티쎈 스탈 아게 | Process for the continuous casting of an austenitic stainless steel strip onto one or between two moving walls with dimpled surfaces, and casting plant for its implementation |
US7281569B2 (en) | 2003-01-24 | 2007-10-16 | Nucor Corporation | Casting steel strip with low surface roughness and low porosity |
US7484550B2 (en) | 2003-01-24 | 2009-02-03 | Nucor Corporation | Casting steel strip |
US8122937B2 (en) | 2007-10-12 | 2012-02-28 | Nucor Corporation | Method of forming textured casting rolls with diamond engraving |
US9149868B2 (en) | 2005-10-20 | 2015-10-06 | Nucor Corporation | Thin cast strip product with microalloy additions, and method for making the same |
US9999918B2 (en) | 2005-10-20 | 2018-06-19 | Nucor Corporation | Thin cast strip product with microalloy additions, and method for making the same |
US10071416B2 (en) | 2005-10-20 | 2018-09-11 | Nucor Corporation | High strength thin cast strip product and method for making the same |
US11193188B2 (en) | 2009-02-20 | 2021-12-07 | Nucor Corporation | Nitriding of niobium steel and product made thereby |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH691575A5 (en) * | 1999-10-08 | 2001-08-31 | Main Man Inspiration Ag | The strip casting machine for producing a metal strip, and method for operating same. |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5082046A (en) * | 1989-12-20 | 1992-01-21 | Usinor Sacilor | Device for casting thin strips of metal between |
WO1993008941A1 (en) * | 1991-11-06 | 1993-05-13 | Davy Mckee (Poole) Limited | A roll for a twin roll caster |
AU2992992A (en) * | 1991-12-11 | 1993-06-17 | Thyssen Stahl Aktiengesellschaft | Roll for a machine for the continuous casting of metal strips, corresponding continuous casting machine and method for producing said roll |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0378705B2 (en) † | 1988-07-08 | 1999-09-15 | Nippon Steel Corporation | PROCESS FOR PRODUCING THIN Cr-Ni STAINLESS STEEL SHEET EXCELLENT IN BOTH SURFACE QUALITY AND QUALITY OF MATERIAL |
JPH082484B2 (en) * | 1990-10-19 | 1996-01-17 | 新日本製鐵株式会社 | Austenitic stainless steel strip-shaped slab with excellent surface quality, thin plate manufacturing method, and strip-shaped slab |
-
1994
- 1994-11-09 EP EP95900015A patent/EP0679114B2/en not_active Expired - Lifetime
- 1994-11-09 KR KR1019950701830A patent/KR100305291B1/en not_active IP Right Cessation
- 1994-11-09 ES ES95900015T patent/ES2134427T5/en not_active Expired - Lifetime
- 1994-11-09 JP JP7514101A patent/JPH08505811A/en active Pending
- 1994-11-09 DK DK95900015T patent/DK0679114T4/en active
- 1994-11-09 DE DE69419593T patent/DE69419593T3/en not_active Expired - Lifetime
- 1994-11-09 WO PCT/AU1994/000685 patent/WO1995013889A1/en active IP Right Grant
- 1994-11-09 AT AT95900015T patent/ATE182284T1/en not_active IP Right Cessation
- 1994-11-17 ZA ZA949134A patent/ZA949134B/en unknown
- 1994-11-21 TW TW083110812A patent/TW276200B/zh active
-
1995
- 1995-04-26 FI FI951985A patent/FI101944B/en active
-
1999
- 1999-09-16 GR GR990402313T patent/GR3031222T3/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5082046A (en) * | 1989-12-20 | 1992-01-21 | Usinor Sacilor | Device for casting thin strips of metal between |
WO1993008941A1 (en) * | 1991-11-06 | 1993-05-13 | Davy Mckee (Poole) Limited | A roll for a twin roll caster |
AU2992992A (en) * | 1991-12-11 | 1993-06-17 | Thyssen Stahl Aktiengesellschaft | Roll for a machine for the continuous casting of metal strips, corresponding continuous casting machine and method for producing said roll |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0740972A1 (en) * | 1995-05-05 | 1996-11-06 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Casting steel strip |
CN1067306C (en) * | 1996-03-22 | 2001-06-20 | 犹齐诺-萨西洛公司 | Process for continuous casting of austenitic stainless steel strip onto one or between two moving walls with dimpled surfaces, and casting plant for its implementation |
EP0796685A1 (en) | 1996-03-22 | 1997-09-24 | Usinor Sacilor | Process and apparatus for continuously casting a strand of inoxidable austenitic steel on a moving wall or in between two moving walls whose surfaces are grooved |
US5807444A (en) * | 1996-03-22 | 1998-09-15 | Usinor Sacilor | Process for the continuous casting of an austenitic stainless steel strip onto one or between two moving walls with dimpled surfaces, and casting plant for its implementation |
KR100650967B1 (en) * | 1996-03-22 | 2007-01-31 | 티쎈 스탈 아게 | Process for the continuous casting of an austenitic stainless steel strip onto one or between two moving walls with dimpled surfaces, and casting plant for its implementation |
AU706394B2 (en) * | 1996-03-22 | 1999-06-17 | Thyssen Stahl Aktiengesellschaft | Process for the continuous casting of an austenitic stainless steel strip onto one or between two moving walls with dimpled surfaces, and casting plant for its implementation |
FR2746333A1 (en) * | 1996-03-22 | 1997-09-26 | Usinor Sacilor | CONTINUOUS CASTING PROCESS OF AN AUSTENITIC STAINLESS STEEL STRIP ON ONE OR BETWEEN TWO MOVABLE WALLS WHOSE SURFACES ARE PROVIDED WITH DIMENSIONS, AND CASTING PLANT FOR ITS IMPLEMENTATION |
CN1096900C (en) * | 1997-06-02 | 2002-12-25 | 卡斯特里普公司 | Amorphous or glassy alloy surfaced rolls for continuous casting of metal strip |
WO1998055251A1 (en) * | 1997-06-02 | 1998-12-10 | Ishikawajima-Harima Heavy Industries Company Limited | Amorphous or glassy alloy surfaced rolls for the continuous casting of metal strip |
WO2000007753A1 (en) * | 1998-08-07 | 2000-02-17 | Ishikawajima-Harima Heavy Industries Company Limited | Casting steel strip |
KR100621084B1 (en) * | 1998-08-07 | 2006-09-07 | 카스트립 엘엘씨. | Casting steel strip |
US6942013B2 (en) | 1998-08-07 | 2005-09-13 | Lazar Strezov | Casting steel strip |
US7604039B2 (en) | 1999-02-05 | 2009-10-20 | Castrip, Llc | Casting steel strip |
US7073565B2 (en) | 1999-02-05 | 2006-07-11 | Castrip, Llc | Casting steel strip |
US6679313B2 (en) * | 1999-03-26 | 2004-01-20 | Sollac | Process for manufacturing carbon-steel strip by twin-roll continuous casting, product produced and apparatus |
WO2000064612A1 (en) * | 1999-04-22 | 2000-11-02 | Usinor | Method for continuously casting between two rolls austenitic stainless steel strips with excellent surface quality and resulting strips |
AU767990B2 (en) * | 1999-04-22 | 2003-11-27 | Usinor | Method for continuously casting between two rolls austenitic stainless steel strips with excellent surface quality and resulting strips |
FR2792560A1 (en) * | 1999-04-22 | 2000-10-27 | Usinor | Continuous casting of stainless austenitic steel strips between rolls involves using rolls having surface comprising contacting circular or elliptical pits and inert gas soluble in steel around meniscus of molten metal |
US7328737B2 (en) | 2002-10-15 | 2008-02-12 | Voest-Alpine Industrieanlagenbau Gmbh & Co. | Installation for continuously producing a thin steel strip |
US7156152B2 (en) | 2002-10-15 | 2007-01-02 | Voest-Alpine Industrieanlagenbau Gmbh & Co. | Process for the continuous production of a think steel strip |
WO2004035247A1 (en) * | 2002-10-15 | 2004-04-29 | Voest-Alpine Industrieanlagenbau Gmbh & Co | Method for continuously producing a thin steel strip |
US7594533B2 (en) | 2003-01-24 | 2009-09-29 | Nucor Corporation | Casting steel strip |
US7367378B2 (en) | 2003-01-24 | 2008-05-06 | Nucor Corporation | Casting steel strip with low surface roughness and low porosity |
US7484550B2 (en) | 2003-01-24 | 2009-02-03 | Nucor Corporation | Casting steel strip |
US7299856B2 (en) | 2003-01-24 | 2007-11-27 | Nucor Corporation | Casting steel strip with low surface roughness and low porosity |
US7281569B2 (en) | 2003-01-24 | 2007-10-16 | Nucor Corporation | Casting steel strip with low surface roughness and low porosity |
US8016021B2 (en) | 2003-01-24 | 2011-09-13 | Nucor Corporation | Casting steel strip with low surface roughness and low porosity |
US9149868B2 (en) | 2005-10-20 | 2015-10-06 | Nucor Corporation | Thin cast strip product with microalloy additions, and method for making the same |
US9999918B2 (en) | 2005-10-20 | 2018-06-19 | Nucor Corporation | Thin cast strip product with microalloy additions, and method for making the same |
US10071416B2 (en) | 2005-10-20 | 2018-09-11 | Nucor Corporation | High strength thin cast strip product and method for making the same |
US8122937B2 (en) | 2007-10-12 | 2012-02-28 | Nucor Corporation | Method of forming textured casting rolls with diamond engraving |
US11193188B2 (en) | 2009-02-20 | 2021-12-07 | Nucor Corporation | Nitriding of niobium steel and product made thereby |
Also Published As
Publication number | Publication date |
---|---|
ZA949134B (en) | 1995-07-24 |
TW276200B (en) | 1996-05-21 |
DE69419593T2 (en) | 1999-11-18 |
FI101944B1 (en) | 1998-09-30 |
ES2134427T3 (en) | 1999-10-01 |
EP0679114B1 (en) | 1999-07-21 |
EP0679114A4 (en) | 1997-03-19 |
DE69419593D1 (en) | 1999-08-26 |
JPH08505811A (en) | 1996-06-25 |
KR100305291B1 (en) | 2001-11-22 |
KR950704070A (en) | 1995-11-17 |
ES2134427T5 (en) | 2005-05-16 |
FI951985A (en) | 1995-05-19 |
FI101944B (en) | 1998-09-30 |
FI951985A0 (en) | 1995-04-26 |
DK0679114T3 (en) | 2000-02-07 |
EP0679114B2 (en) | 2004-11-03 |
EP0679114A1 (en) | 1995-11-02 |
GR3031222T3 (en) | 1999-12-31 |
ATE182284T1 (en) | 1999-08-15 |
DK0679114T4 (en) | 2004-12-13 |
DE69419593T3 (en) | 2005-06-09 |
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