EP0551311A1 - Liquid-cooled mould for continuous casting of steel billets in slab form. - Google Patents
Liquid-cooled mould for continuous casting of steel billets in slab form.Info
- Publication number
- EP0551311A1 EP0551311A1 EP91916776A EP91916776A EP0551311A1 EP 0551311 A1 EP0551311 A1 EP 0551311A1 EP 91916776 A EP91916776 A EP 91916776A EP 91916776 A EP91916776 A EP 91916776A EP 0551311 A1 EP0551311 A1 EP 0551311A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- height
- section
- side plates
- strand
- 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.)
- Granted
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
-
- 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
-
- 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0408—Moulds for casting thin slabs
-
- 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/043—Curved moulds
Definitions
- the invention relates to a liquid-cooled, width-adjustable plate mold for the continuous casting of steel strands in
- the mold exit corresponds to the desired strand format.
- a corresponding mold for a strand with an oval cross section is known from US Pat. No. 2,767,448.
- This mold relates to a so-called block mold, ie the cross-section of the mold cannot be changed or is not suitable for setting different strand formats.
- DE 3501 422 C2 a mold belongs to the prior art, the narrow side walls of which can be adjusted to different strand dimensions and the pouring opening has an oval cross-sectional area.
- the mold tapers in such a way that the slab broad sides are formed with parallel walls, while the narrow side walls diverge from the pouring side to the pouring side. but keep their concave shape.
- Such a mold is also known from EP 0249 146 or US Pat. No. 4,716,955.
- molds are known, with flat surfaces of the narrow sides of the mold and broad sides that bulge outwards over the entire height of the mold.
- Mold wall Deformation of the strand shell occurs when the strand passes through the mold, which can lead to cracking in the strand shell.
- the present invention is based on the object
- Part of the invention is that the reduction in the apex height can be done both linearly and after an e-function.
- the crowning provided according to the invention can also differ from the circular shape in a polygon or from the combination of Polygonal trains and floor elements. Overall, it is provided that at the bottom of the mold, that is to say at the end of the strand exit, there is still the optimum crowning, for example, 1 mm per side for a rolling process. Accordingly, the following roller strand guide is designed in accordance with the crowning of the strand. This results in the advantage, among other things, that all rolls of the same diameter can be freely converted in their position and no deformation work with regard to changing the crowning has to be carried out.
- Fig. 1 is a plan view of a mold in cross section A-A
- FIG. 2 shows a partial image according to FIG. 1 with the position of the narrow sides for a maximum slab width
- Fig. 3 is a longitudinal section B-B of Fig. 1 and
- Fig. 4 shows the adjustment range of the mold according to Figs. 1 and
- Fig. 5 shows another embodiment in longitudinal section
- the mold consists of broad side plates 1 with narrow side plates 2 arranged between them.
- the narrow side plates 2 defnue the smallest casting cross-section achievable with this mold, ie the smallest slab width (b min).
- this area 3 a flat, arc-shaped recess, seen in cross section extending over this area 3, is worked into the broad side plate 1 on the sides forming the casting cross section.
- the arch height or apex height 13 compared to an inscribed rectangle - chord of the arch - on the pouring side 4 of the mold is a maximum of 12 mm above one Section 6 of about 1/3 of the mold height and then decreases to the lower edge 5 of the mold hm to an arc height of 1 mm (Fig. 5).
- the selected crowning on the casting side of the mold corresponds to a max. Strand tray extension over the format width of 20% of shrinkage.
- areas 3 ′ adjoin the area 3 of the broad side plate 1 1, within which the narrow side plates 2 can be adjusted (FIG. 2). These areas 3 ′ extend over the entire mold height with a constant cross-sectional area for the strand to be produced.
- the broad side plates 1 are machined in the area 3 'in such a way that the surface enclosed by the broad sides in plan view, starting from the side lines of the inscribed rectangle, form an isosceles trapezoid in such a way that the larger base line of the trapezoid coincides with the side lines of the inscribed rectangle .
- the base line of the trapezoid is 0.4 mm longer than the opposite side.
- the contact pressure of the broad side plates on the narrow side plates is first reduced when the width is adjusted, the narrow side plates are then moved and then the broad side plates are then pressed again.
- the described configuration of the broad side plate 1 is applicable to straight and circular chill molds and also to curved chill molds with several different radii of curvature, as shown in FIG. 3 and designated R1-R4.
- a mold is shown, the pouring side of a straight section 6 with a subsequent arcuate part consists.
- the immersion spout 7 which is elongate in cross section, for supplying the melt.
- the broad side plates 1 are cooled by means of water which is passed through channels 8 in the rear of the shaping wall consisting of copper.
- the copper walls are fastened in the usual way to a plate, not shown, which at the same time covers the channels, via bolts which engage in recesses 9.
- the cooling channels 8 have a depth, at least in the upper mold half, such that the distance of the channel base 8 ', seen in plan view, increases from the mold center 10 to the narrow side walls 2 in relation to the surface of the broad side plate 1 facing the melt.
- the mold consists of three areas with different crown heights 13 of the arc.
- the area 6, here also designated L1 corresponds to that as described in FIG. 5.
- the apex height 13 decreases linearly to an amount 14 which corresponds to that at the mold exit 5.
- the lower mold section 12 thus has a constant apex height 13. While a certain crowning is also present on the lower edge 5 of the mold in the embodiments described so far, the shape of the broadside plate 1 on the lower edge - i.e. at the end of the strand exit - of the mold corresponds to the strand format to be produced in the embodiment according to Figures 6-8.
- the transition from the cambered pouring side 4 to the lower edge 5 clearly results from the steps shown in FIGS. 6-8.
- the shrinking process of the strand is possibly hindered or blocked by parallel broad-side copper plates, but rather facilitated by the crowning,
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
La présente invention concerne une lingotière à plaques refroidie par liquide et réglable en largeur, destinée à la coulée en continu de billettes d'acier sous forme de brames, en particulier d'une épaisseur inférieure à 100 mm. Les plaques de face (1) et les plaques de rive (2) de la lingotière définissant la forme de la billette donnent à cette dernière dans le sens transversal une section épaissie, et les plaques de rive sont sensiblement parallèles sur toute la hauteur de la lingotière. Les plaques de face (1) sont concaves sur une zone (3) correspondant à la plus petite largeur de la brame de manière qu'en coupe transversale le point culminant de la paroi de la lingotière formant un arc présente une hauteur spécifique par rapport à un rectangle inscrit. La forme des plaques au niveau de la zone d'évacuation (5) des billettes correspond au format de billette voulu.The present invention relates to a liquid-cooled and width-adjustable plate ingot mold intended for the continuous casting of steel billets in the form of slabs, in particular with a thickness of less than 100 mm. The face plates (1) and the edge plates (2) of the mold defining the shape of the billet give the latter in the transverse direction a thickened section, and the edge plates are substantially parallel over the entire height of the ingot mold. The face plates (1) are concave over an area (3) corresponding to the smallest width of the slab so that in cross section the highest point of the wall of the mold forming an arc has a specific height with respect to an inscribed rectangle. The shape of the plates at the discharge area (5) of the billets corresponds to the desired billet format.
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4031691 | 1990-10-02 | ||
DE4031691 | 1990-10-02 | ||
DE4131829 | 1991-09-20 | ||
DE4131829A DE4131829C2 (en) | 1990-10-02 | 1991-09-20 | Liquid-cooled mold for the continuous casting of steel strands in slab format |
PCT/DE1991/000761 WO1992005898A1 (en) | 1990-10-02 | 1991-09-23 | Liquid-cooled mould for continuous casting of steel billets in slab form |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0551311A1 true EP0551311A1 (en) | 1993-07-21 |
EP0551311B1 EP0551311B1 (en) | 1994-11-02 |
Family
ID=25897500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91916776A Revoked EP0551311B1 (en) | 1990-10-02 | 1991-09-23 | Liquid-cooled mould for continuous casting of steel billets in slab form |
Country Status (9)
Country | Link |
---|---|
US (1) | US5467809A (en) |
EP (1) | EP0551311B1 (en) |
JP (1) | JP2683725B2 (en) |
KR (1) | KR100206298B1 (en) |
AT (1) | ATE113509T1 (en) |
CA (1) | CA2093327C (en) |
DE (2) | DE4131829C2 (en) |
ES (1) | ES2063526T3 (en) |
WO (1) | WO1992005898A1 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1252990B (en) * | 1991-10-31 | 1995-07-10 | Danieli Off Mecc | LONGITUDINAL BENDING CRYSTALLIZER FOR CONTINUOUS CASTING CURVE FOR THIN BRANKS |
IT1262073B (en) * | 1993-02-16 | 1996-06-19 | Danieli Off Mecc | LINGOTTIERA FOR CONTINUOUS CASTING OF THIN SLABS |
IT1265065B1 (en) * | 1993-05-17 | 1996-10-30 | Giovanni Arvedi | PERFECTED INGOT MILL FOR CONTINUOUS STEEL CASTING, PARTICULARLY SUITABLE FOR CONTINUOUS CASTING OF THIN Slabs |
DE4322948A1 (en) * | 1993-07-09 | 1995-01-12 | Schloemann Siemag Ag | Continuous casting mold for casting thin slabs |
DE4337399C2 (en) * | 1993-10-26 | 1995-08-17 | Mannesmann Ag | Continuous casting mold for the production of thin slabs, plates or sheets made of steel |
DE4403049C1 (en) * | 1994-01-28 | 1995-09-07 | Mannesmann Ag | Continuous caster and method for producing thin slabs |
DE4403050C1 (en) * | 1994-01-28 | 1995-09-28 | Mannesmann Ag | Continuous casting mold for guiding strands |
DE4424600A1 (en) * | 1994-07-13 | 1996-01-18 | Eko Stahl Gmbh | Mould for continuous casting of thin slabs |
DE19508169C5 (en) * | 1995-03-08 | 2009-11-12 | Kme Germany Ag & Co. Kg | Mold for continuous casting of metals |
DE19710791C2 (en) * | 1997-03-17 | 2000-01-20 | Schloemann Siemag Ag | Optimized forms of the continuous casting mold and the immersion nozzle for casting steel slabs |
DE19728957A1 (en) * | 1997-06-30 | 1999-01-07 | Mannesmann Ag | Method and device for producing thin slabs |
IT1293817B1 (en) † | 1997-08-04 | 1999-03-10 | Giovanni Arvedi | INGOT MOLD FOR CONTINUOUS CASTING OF STEEL SHEETS WITH IMPROVED CONTACT |
US6419005B1 (en) * | 2000-06-29 | 2002-07-16 | Vöest-Alpine Services and Technologies Corporation | Mold cassette and method for continuously casting thin slabs |
DE10106328A1 (en) * | 2001-02-09 | 2002-08-14 | Evertz Egon Kg Gmbh & Co | Continuous casting mold for production of metal strip or thin plate has funnel-shaped casting slot enclosed between two plates and having elliptical cross-section |
DE10290453D2 (en) | 2001-02-09 | 2004-01-15 | Evertz Egon Kg Gmbh & Co | continuous casting |
DE10148150B4 (en) * | 2001-09-28 | 2014-05-22 | Egon Evertz Kg (Gmbh & Co.) | Liquid-cooled continuous casting mold |
DE10314460B4 (en) * | 2003-03-28 | 2006-04-20 | Sms Demag Ag | Method and continuous casting apparatus with a continuous casting mold for the casting of liquid metals, in particular of steel materials |
US20060191661A1 (en) * | 2003-10-01 | 2006-08-31 | Zajber Adolf G | Continuous casting mold for casting molten metals, particularly steel materials, at high casting rates to form polygonal billet, bloom, and preliminary section castings and the like |
CN2776595Y (en) * | 2005-03-07 | 2006-05-03 | 鞍钢集团新钢铁有限责任公司 | Profile crystallizer for plate blank continuous casting |
DE102015215187A1 (en) | 2015-08-10 | 2017-02-16 | Sms Group Gmbh | Melt metallurgical plant comprising a mold |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE887990C (en) * | 1951-05-07 | 1953-08-27 | Irving Rossi | Water-cooled continuous casting mold |
DE898667C (en) * | 1951-07-01 | 1953-12-03 | Boehler & Co Ag Geb | Device for introducing the lubricant into continuous casting molds |
US2767448A (en) * | 1952-06-27 | 1956-10-23 | Babcock & Wilcox Co | Continuous casting mold |
GB1199805A (en) * | 1967-04-20 | 1970-07-22 | British Iron Steel Research | Continuous Casting |
US3763920A (en) * | 1972-03-16 | 1973-10-09 | United States Steel Corp | Water inlet construction for continuous-casting molds |
US3866664A (en) * | 1973-06-01 | 1975-02-18 | United States Steel Corp | Mold for use in continuous-casting of metals |
DE3400220A1 (en) * | 1984-01-05 | 1985-07-18 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | CHOCOLATE FOR CONTINUOUSLY STEEL STRIP |
AT379093B (en) * | 1984-02-16 | 1985-11-11 | Voest Alpine Ag | CONTINUOUS CHOCOLATE FOR A CONTINUOUS CASTING SYSTEM |
FR2583662B1 (en) * | 1985-06-25 | 1987-09-25 | Clecim Sa | METHOD AND MACHINE FOR CONTINUOUS CASTING OF A THIN METAL PRODUCT |
DE3601501C3 (en) * | 1986-01-20 | 2000-10-05 | Sms Demag Ag | Mold for the continuous casting of steel strip |
KR950014347B1 (en) * | 1986-02-27 | 1995-11-25 | 에스 엠 에스 슐레만-지이마크 악티엔게젤샤프트 | Method and apparatus for continuously casting strip |
US4716955A (en) * | 1986-06-11 | 1988-01-05 | Sms Concast Inc. | Continuous casting method |
DE3627991A1 (en) * | 1986-08-18 | 1988-02-25 | Mannesmann Ag | METHOD FOR CONTINUOUSLY MOLDING SLABS AND DEVICE FOR CARRYING OUT THE METHOD |
DE3640525C2 (en) * | 1986-11-27 | 1996-02-15 | Schloemann Siemag Ag | Mold for the continuous casting of steel strip |
DE3724628C1 (en) * | 1987-07-22 | 1988-08-25 | Mannesmann Ag | Continuous casting mold for producing thin slabs in slab format |
JPS6475146A (en) * | 1987-09-14 | 1989-03-20 | Kawasaki Steel Co | Mold for round billet continuous casting |
AT389251B (en) * | 1987-12-23 | 1989-11-10 | Voest Alpine Ind Anlagen | COOLING OF A CONTINUOUS CASTING CHILL |
GB8814331D0 (en) * | 1988-06-16 | 1988-07-20 | Davy Distington Ltd | Continuous casting of steel |
DE3907351C2 (en) * | 1989-03-08 | 1998-09-24 | Schloemann Siemag Ag | Pouring funnel of a mold |
-
1991
- 1991-09-20 DE DE4131829A patent/DE4131829C2/en not_active Revoked
- 1991-09-23 JP JP3515210A patent/JP2683725B2/en not_active Expired - Lifetime
- 1991-09-23 US US08/039,063 patent/US5467809A/en not_active Expired - Lifetime
- 1991-09-23 CA CA002093327A patent/CA2093327C/en not_active Expired - Fee Related
- 1991-09-23 DE DE59103447T patent/DE59103447D1/en not_active Revoked
- 1991-09-23 WO PCT/DE1991/000761 patent/WO1992005898A1/en not_active Application Discontinuation
- 1991-09-23 ES ES91916776T patent/ES2063526T3/en not_active Expired - Lifetime
- 1991-09-23 AT AT91916776T patent/ATE113509T1/en not_active IP Right Cessation
- 1991-09-23 KR KR1019920701262A patent/KR100206298B1/en not_active IP Right Cessation
- 1991-09-23 EP EP91916776A patent/EP0551311B1/en not_active Revoked
Non-Patent Citations (1)
Title |
---|
See references of WO9205898A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR100206298B1 (en) | 1999-07-01 |
ATE113509T1 (en) | 1994-11-15 |
KR920702263A (en) | 1992-09-03 |
WO1992005898A1 (en) | 1992-04-16 |
CA2093327C (en) | 2002-06-25 |
DE4131829C2 (en) | 1993-10-21 |
JP2683725B2 (en) | 1997-12-03 |
JPH06503757A (en) | 1994-04-28 |
DE4131829A1 (en) | 1992-04-16 |
CA2093327A1 (en) | 1992-04-03 |
EP0551311B1 (en) | 1994-11-02 |
DE59103447D1 (en) | 1994-12-08 |
ES2063526T3 (en) | 1995-01-01 |
US5467809A (en) | 1995-11-21 |
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