EP2483016A1 - Stranggiesskokille mit kreisförmigem oder polygonalem querschnitt - Google Patents
Stranggiesskokille mit kreisförmigem oder polygonalem querschnittInfo
- Publication number
- EP2483016A1 EP2483016A1 EP10760662A EP10760662A EP2483016A1 EP 2483016 A1 EP2483016 A1 EP 2483016A1 EP 10760662 A EP10760662 A EP 10760662A EP 10760662 A EP10760662 A EP 10760662A EP 2483016 A1 EP2483016 A1 EP 2483016A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strand
- mold
- region
- casting
- relief
- 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
- 238000009749 continuous casting Methods 0.000 title claims abstract description 13
- 238000005266 casting Methods 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 description 7
- 230000003252 repetitive effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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
-
- 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
- B22D11/0406—Moulds with special profile
Definitions
- the present invention relates to a mold for casting metallic melt into a strand with a
- the invention relates to a mold for casting metallic melt into a strand having a circular or polygonal cross-section in a continuous casting machine
- Melt is limited in the mold and by a pull-out for extracting the at least partially solidified strand of the mold;
- Strand is bounded by an inner wall of the mold
- the mold cavity has a relief region with an associated relief casting cone, wherein the relief region has a plurality of recesses in the inner wall of the mold to relieve the strand.
- a mold for pouring metallic melt into a strand, the so-called continuous casting, with a substantially polygonal cross section is known from EP 0 958 871 A1, wherein this mold has a shape in strand extraction direction. Having continuous mold cavity which is bounded transversely to the extension direction of the strand by at least one conical inner wall. To adapt to the shrinkage of the solidifying strand, the mold has three areas, each with different casting cones. Under a
- Casting cone is understood to be a conical contour of the inner wall of the mold in strand extraction direction, the taper (cone) essentially by the shrinkage of the solidifying
- Strand is determined. Since the strand contracts during solidification, the mold cavity in the region of the casting mirror is wider than in a downstream region in the extension direction.
- Discharge speed and the cooling of the strand depends, a complete adaptation of the casting cone or the casting cone to the shrinkage of the strand is not possible. If the casting cone is too small, i. the taper of the casting cone is weaker than the strand shrinkage occurs loss of contact between the strand shell and the inner wall of the mold, which is an uneven and usually weak
- Strand shell training has the consequence; the casting cone is too strong, i. the taper of the casting cone is stronger than the strand shrinkage, this leads to a sufficient and usually a homogeneous strand shell growth, but unnecessarily high contact pressures and thus friction forces are caused. In this case, the strand clamps in a sense in the mold, so that in extreme cases, even the tearing or tearing of the strand can come.
- the object of the invention is to provide a mold for casting of metallic melt into a strand having a circular or polygonal cross-section in a continuous casting machine, with the one hand, a sufficiently strong
- G hopekonus of the mold cavity can be specified, so that along the entire circumference of G confusequeritess or the mold cavity sufficient and a homogeneous
- Extending direction wherein the recess or the repeating sequence is a shape of a helical line
- Repetitive sequence in the form of a helical line is therefore favorable, since the contact conditions are varied over the circumference and thus not always the same area on the circumference relieved or more strongly contacted.
- the depression or the repeating sequence it is of course also possible for the depression or the repeating sequence to have a line shape.
- a depth of a depression in the inner wall increases steadily and monotonically over a developed length of the helix against the
- a width of a recess in the inner wall takes steadily and monotonically over a developed length of the helix against the
- the support of the strand in its extension direction through the inner wall of the mold decreases steadily and monotonically, i. the strand is in the extension direction initially (small thickness of
- a recess is made either as a groove or as a fillet, as these can be made easily and inexpensively.
- the relief region has a number of n depressions, wherein two adjacent depressions each have an angular displacement of 360 / n ° about a central axis of the mold cavity.
- the pitch of the helix is n - L n , where L n indicates the dimension of the relief region in the strand extension direction.
- L n indicates the dimension of the relief region in the strand extension direction.
- the relief area is a
- one or more of the group consisting of the inlet casting cone, the relief casting cone and the output casting cone has a parabolic conicity.
- a transition from a casting cone to a subsequent casting cone is continuous, preferably repeatedly continuously differentiable. As a result, stresses in the strand are reduced or avoided during the transition from one region to the downstream region.
- the mold cavity has a convex curvature. This ensures that the mold cavity in an upstream area is wider than in a - downstream area - in the extension direction.
- the mold according to the invention in a continuous casting plant for producing a metal strand of steel with a circular or polygonal
- Fig. 1 is a perspective view of a mold for continuously casting a strand with a round cross-section
- FIG. 2 is a sectional view of the front view of the mold according to FIG. 1
- FIG. 3 to 5 are sectional views of the mold of Fig. 1 with the cutting planes I-I (Fig. 3), II-II (Fig. 4) and IIIIII (Fig. 5)
- Fig. 6 is a perspective view of a mold for continuously casting a strand with a round cross-section
- FIG. 7 is a sectional view of the front view of the mold according to FIG. 6
- FIG. 1 a mold 1 for continuous casting of a
- the mold has in particular a continuous in the extension direction of the strand mold cavity 2, which is limited in the extension direction by the pouring opening 3 and the extraction opening 4, and transverse to the extension direction through the inner wall 5.
- the inner wall 5 has a - parabolic conicity extending over an input region 6 and a - immediately downstream of the input region 6 - relief region 8 of the mold 1, wherein the mold at the gate 3 a wall thickness of 20 mm, at the transition from the input area 6 to
- Relief area 8 has a wall thickness of 22 mm and at the extraction opening 4 has a wall thickness of 24 mm.
- the relief region 8 has four recesses 10 in the inner wall 5 which extend in the form of a helix along the length of the relief region 8, i. from the beginning of the discharge area 8 to the extraction opening 4 out, extend.
- the depth and width of a recess 10 decreases steadily and monotonically over the unwound length of the helix against the extension direction, wherein the recess at the extraction opening 4 has a depth of 1 mm.
- the decrease of the depth and the width of the recesses 10 in the inner wall 5 are shown in more detail in Figs. 3 to 5, wherein also in these figures, the recesses increased
- Figs. 6 and 7 the mold according to Fig. 1 is shown in another embodiment, wherein the depressions for relieving the strand in the inner wall 5 of the mold 1 by a repeating sequence consisting of a region with a recess 10 and a Area without
- Well are formed in the form of a helical line.
- the transition from the input pouring cone 7 of the input region to the relief pouring cone 9 of the relief region is "smooth", i.e. multi-differentiable, with both casting cones having a parabolic taper.
- the molds designed according to the invention have the effect that a sufficiently strong casting cone of the inner wall of the mold does not lead to unnecessarily high contact pressures and frictional forces of the strand in the molds, so that in particular clamping of the strand in the molds is reliably prevented.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT15332009A AT508822B1 (de) | 2009-09-29 | 2009-09-29 | Kokille zum vergiessen von metallischer schmelze zu einem metallstrang mit kreisförmigem oder polygonalem querschnitt in einer stranggiessmaschine |
| PCT/EP2010/064240 WO2011039135A1 (de) | 2009-09-29 | 2010-09-27 | Stranggiesskokille mit kreisförmigem oder polygonalem querschnitt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2483016A1 true EP2483016A1 (de) | 2012-08-08 |
| EP2483016B1 EP2483016B1 (de) | 2014-10-29 |
Family
ID=42989396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10760662.6A Not-in-force EP2483016B1 (de) | 2009-09-29 | 2010-09-27 | Stranggiesskokille mit kreisförmigem oder polygonalem querschnitt |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2483016B1 (de) |
| CN (1) | CN102686338B (de) |
| AT (1) | AT508822B1 (de) |
| IN (1) | IN2012DN03350A (de) |
| RU (1) | RU2546264C2 (de) |
| WO (1) | WO2011039135A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128563B (zh) * | 2013-08-19 | 2017-04-19 | 国家电网公司 | 金属型及其本体、制备方法及使用该金属型的铸造模具 |
| CN105127381B (zh) * | 2015-08-21 | 2017-06-06 | 江苏华威铜业有限公司 | 一种温控型金属铸造装置 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH440569A (de) * | 1966-12-28 | 1967-07-31 | Moossche Eisenwerke Ag | Verfahren und Vorrichtung zum Stranggiessen von Knüppeln |
| GB1596048A (en) * | 1977-06-11 | 1981-08-19 | Jones & Son Ltd John | Apparatus and process for continuous casting |
| US4216818A (en) * | 1978-11-08 | 1980-08-12 | Timex Corporation | Continuous casting mold assembly |
| DE3406730A1 (de) * | 1984-02-24 | 1985-08-29 | Mannesmann AG, 4000 Düsseldorf | Verfahren und vorrichtung zum stranggiessen von metallen, insbesondere von stahl |
| CN87213174U (zh) * | 1987-09-05 | 1988-09-21 | 上海电机锻造厂 | 上引法连铸生产金属管的结晶器 |
| JP3021675B2 (ja) * | 1990-12-26 | 2000-03-15 | 住友化学工業株式会社 | らせん形状を有する連続鋳造棒の製造方法および装置 |
| CN2156968Y (zh) * | 1992-12-01 | 1994-02-23 | 中南工业大学 | 水平连铸结晶器 |
| DE19508169C5 (de) * | 1995-03-08 | 2009-11-12 | Kme Germany Ag & Co. Kg | Kokille zum Stranggießen von Metallen |
| CH693130A5 (de) * | 1998-05-18 | 2003-03-14 | Concast Standard Ag | Kokille zum Stranggiessen von im wesentlichen polygonalen Strängen. |
| DE19953905A1 (de) * | 1999-11-10 | 2001-05-17 | Sms Demag Ag | Verfahren und Vorrichtung zur Verminderung der Wärmeabfuhr einer Stranggußkokille |
| DE10237472A1 (de) * | 2002-08-16 | 2004-02-26 | Km Europa Metal Ag | Flüssigkeitsgekühlte Kokille |
| DE102005057580A1 (de) * | 2005-11-30 | 2007-06-06 | Km Europa Metal Ag | Kokille zum Stranggießen von Metall |
-
2009
- 2009-09-29 AT AT15332009A patent/AT508822B1/de not_active IP Right Cessation
-
2010
- 2010-09-27 IN IN3350DEN2012 patent/IN2012DN03350A/en unknown
- 2010-09-27 EP EP10760662.6A patent/EP2483016B1/de not_active Not-in-force
- 2010-09-27 CN CN201080043464.0A patent/CN102686338B/zh not_active Expired - Fee Related
- 2010-09-27 WO PCT/EP2010/064240 patent/WO2011039135A1/de not_active Ceased
- 2010-09-27 RU RU2012117625/02A patent/RU2546264C2/ru active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011039135A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102686338B (zh) | 2014-09-24 |
| CN102686338A (zh) | 2012-09-19 |
| EP2483016B1 (de) | 2014-10-29 |
| RU2012117625A (ru) | 2013-11-10 |
| IN2012DN03350A (de) | 2015-10-23 |
| AT508822A1 (de) | 2011-04-15 |
| AT508822B1 (de) | 2013-11-15 |
| RU2546264C2 (ru) | 2015-04-10 |
| WO2011039135A1 (de) | 2011-04-07 |
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