CN1711144A - 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 - Google Patents
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 Download PDFInfo
- Publication number
- CN1711144A CN1711144A CNA2003801030659A CN200380103065A CN1711144A CN 1711144 A CN1711144 A CN 1711144A CN A2003801030659 A CNA2003801030659 A CN A2003801030659A CN 200380103065 A CN200380103065 A CN 200380103065A CN 1711144 A CN1711144 A CN 1711144A
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- China
- Prior art keywords
- section
- mold
- cross
- casting
- tube type
- 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 39
- 238000005266 casting Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 11
- 239000010959 steel Substances 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 title abstract description 3
- 239000002184 metal Substances 0.000 title abstract description 3
- 229910052751 metal Inorganic materials 0.000 title abstract description 3
- 150000002739 metals Chemical class 0.000 title abstract description 3
- -1 steel materials Chemical class 0.000 title abstract 2
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 3
- 230000008602 contraction Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 4
- 230000003467 diminishing effect Effects 0.000 claims 1
- 238000007711 solidification Methods 0.000 abstract description 6
- 230000008023 solidification Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention relates to a continuous casting mold for casting molten metals, particularly steel materials, at high casting rates to form polygonal billet, bloom, and preliminary section castings (1) and the like. Said mold is comprised of a tubular mold (2) made of copper or of copper alloys whose entry cross-section (3) on the pouring-in side (4) has both a cross-section (5), which is enlarged compared to the exit cross-section (6) on the casting exit side (7), and corner radii (8). The continuous casting mold can be improved in a technologically process-oriented manner with regard to requirements concerning the cooling processes. To this end, the inner geometric cross-sectional shape (9) and the associated dimensions (10) are provided so that they are analogous to the amount of solidification heat, which is capable of being locally dissipated, at a chosen casting rate and are analogous to the extension of the tubular mold (2).
Description
Technical field
The present invention relates to a kind of be used for the liquid metal of steel particularly under high teeming speed, be cast into polygonal base-, bloom-, the continuous cast mold of rough section bar-continuous casting billet and this class continuous casting billet, be made up of the copper tube type mold, the cross section that the entrance cross-section on its casting side has with respect to continuous casting outlet side upper outlet cross section enlarges district and angular radius.
Background technology
EP 0 498 296 B2 disclose a kind of roughly the same continuous cast mold.The purpose of this patent documentation is, reaches a kind of cooling of the continuous casting billet crust that can measure on gamut by the distortion of continuous casting billet cross section in the inside of tube type mold, so that improve continuous casting billet quality on the one hand, improves casting rate on the other hand.It is said that duration of work also allows different casting rates under the situation of not damaging continuous casting billet.The purpose of the disclosure invention is achieved by enlarging cross section in the protruding mode that reduces continuously.Under the round steel situation, there are at least three this boss on this scope.
Though this formation is not limited to round steel, can not determine cooling situation, particularly surface quality, near the institutional framework the edge and the handling capacity of continuous cast mold of continuous casting billet immediately.
The production capacity of this continuous cast mold does not reach great surface quality yet under high casting rate.
Difficulty in this respect is complexity and the continuous casting billet and the state of tube type mold on the one hand on the other hand of cooling procedure.
Summary of the invention
The objective of the invention is to, make the cooling procedure under the about 3-10m/min casting speed of the relevant cooperation of all technological requirements of this copper tube type mold and appearance.
The purpose that is proposed is achieved thus according to the present invention, and promptly to have the amount of conducting power similar in the heat of solidification part under inner geometry shape of cross section and relative dimensions and the selected casting rate, and with the expansion phase of tube type mold like and constitute.Obtain thus cooperating the tube type mold process optimization, like this heat of solidification is interrelated according to (height) casting rate and crystallizer height (=length), both passed through the continuous casting billet shrinkage character also by crystallizer expansion conduction at the casting duration of work.The continuous casting billet shell does not preferably have on the inner surface (hot side) that air-gap is close to crystallizer all the time.So for example can shrink and crystallizer expands and takes into account simultaneously pouring into a mould in the liquid level district too high heat in the mould for continuous casting billet.The interior shape and the size of design tube type mold from these data.These data for example can be used under about 1000 to 1100mm crystallizer height.
Crystallizer tube can similarly constitute on its outer shape and size, and outer shape highly similarly constituting with the crystallizer thermal expansion on the zone in each of tube type mold at least like this.
According to other features, cast material itself obtains considering thus, promptly tube type mold on its geometric cross-sectional shape with separately the relevant formation of steel quality.
The rapid contraction of mold pressing is for example grasped thus, promptly tube type mold in cast liquid level district, have one with the corresponding bigger conicity of bigger contraction of continuous casting billet section.
Increase with the continuous casting billet shell on this contraction section and common contraction (on the basis of base shell increase S=intrinsic numeric k √ t; The t=casting time) corresponding use conicity, tube type mold has and increases with the continuous casting billet shell and the continuous casting billet contraction phase is answered continually varying conicity formation below this section of bigger conicity like this.Conicity and wall thickness thereof according to other feature tube type molds produce thus, promptly constitute corresponding to the thermal change of each chronomere's conduction at this section lower wall volume of the bigger conicity of tube type mold.
In addition, the thermal expansion of tube type mold can be controlled on its outer surface, and the outer surface of tube type mold strengthens by otch, rib or analog in the zone of minimal wall volume like this.
Have the feature of advantage according to other, the characteristic when continuous casting billet shrinks additionally is subjected to useful influence thus, and promptly from entrance cross-section, each cross-sectional side has roughly parabolic center clearance.
In addition, consider the contraction that reduces according to the continuous casting billet thickness of the shell, roughly parabolic gap is reducing facing on the direction of continuous casting billet outlet side.In this regard, can carry out special cooperating with the wide side and/or the narrow side of entrance cross-section.
In addition, by what the calculating of giving an example had advantage be, roughly the length in parabolic shape gap almost extends on half crystallizer height always.
In addition, the shrinkage character of continuous casting billet can obtain considering that promptly roughly the length in parabolic shape gap matches with each wide side of crystallizer cross section and/or the amount of contraction on the narrow side height thus.
In addition, obtain thus and further develop, promptly constitute one parallel plane separately in the zone of angular radius, this face is relative with internal cross section similar corresponding surface in shape.
Description of drawings
The present invention is described in detail by the embodiment of accompanying drawing below.Wherein:
Fig. 1 illustrates the cross section of tube type mold, has the appended drawings of heat of solidification on the crystallizer height;
Fig. 2 illustrates the same cross section of Fig. 1;
Fig. 2 A illustrates " A-A " section;
Fig. 2 B illustrates " B-B " section;
Fig. 3 illustrates the same cross section of Fig. 1;
Fig. 3 A illustrates " A-A " section;
Fig. 3 B illustrates " B-B " section;
Fig. 4 illustrates and has the roughly cross section in parabolic shape gap;
Fig. 4 A illustrates " A-A " section;
Fig. 4 B illustrates " B-B " section.
The specific embodiment
Fig. 1 illustrates the cross section of continuous cast mold, be used for the liquid metal of steel particularly be cast into polygonal base-, bloom-, rough section bar-continuous casting billet 1 and this class continuous casting billet.Continuous cast mold is made up of copper or copper alloy tubular type crystallizer 2.Entrance cross-section 3 has the cross section relative with continuous casting outlet side 7 upper outlet cross sections 6 on the side 4 in casting and enlarges district 5.Casting side 4 and continuous casting billet outlet side have continuous radius 8 (Fig. 4 A and 4B) on transition region.Distribution map " D " when the right side of figure is illustrated in heat of solidification from continuous casting billet 1 discharge on the crystallizer height 11.Form the violent temperature change process that rises in the cast liquid level district thus.
Design tube type mold 2 now like this, it is similar to make heat of solidification (referring to the right figure of Fig. 1 " D ") part under inner geometry shape of cross section 9 and relative dimensions 10 and selected (height) casting rate have the amount of conducting power, and with the expansion phase of tube type mold 2 like and constitute, just according to calculating and/or empirical data constitutes.
In this regard, outer shape 12 similarly reduces with the crystallizer thermal expansion respectively highly distinguishing on 12 of tube type mold 2 at least.
The expansion of casting metals or the data of contraction can be calculated in geometric cross-sectional shape 9 simultaneously according to determined steel quality equally.
According to Fig. 1-4, tube type mold 2 in the zone of cast liquid level 13 (Fig. 2) have the section 14 of big conicity and and then have with continuous casting billet 1 maximum collapse accordingly bigger conicity sections 15.
Below the section 15 of bigger conicity, continue a conicity 16 that should constantly change with increase of the base shell of continuous casting billet 1 and contraction phase.In this regard, wall body long-pending 17 constitutes corresponding to the variation of the heat of each chronomere's conduction or minimizing.In the zone that wall body long-pending 17 reduces, the outer surface 18 of tube type mold 2 strengthens (Fig. 4 A and 4B) by otch, rib 19 or analog.These otch 19 are washed away from outer most surrounding by cooling medium (water), and are in the water tank (not shown) commonly used around continuous cast mold.Otch, rib 19 or analog can be seen in Fig. 3 and 3B equally.
In Fig. 4 and 4A, from entrance cross-section 3, each cross-sectional side 3a installs a roughly parabolic center clearance 20 respectively.Therefore parabolic shape gap 20 also faces toward continuous casting billet outlet side 7 downwards on its width in the depths direction diminishes.In this regard, the length 20a in parabolic shape gap 20 almost extends on half crystallizer height 11 always.Same match with crystallizer cross section 22 each wide sides and/or narrow side 21 amount of contraction highly (Fig. 4 A) of the length 20a in parabolic shape gap 20.
In the zone of angular radius 8, constitute a plane parallel face 23 that distributes downwards respectively, to similar corresponding surface 24 on the internal cross section shape 9 separately toward each other.
Reference numeral
1 polygon base, breaking down strand, rough section bar continuous casting billet
2 (copper) tube type mold
3 entrance cross-sections
The 3a cross-sectional side
4 casting sides
5 cross sections enlarge the district
6 outlet cross sections
7 continuous casting billet outlet sides
8 angular radius
9 geometric cross-sectional shape
10 sizes
11 crystallizer height
12 outer shape
13 cast liquid levels
14 great circle tapered sections
15 great circle tapered sections more
16 conicities that change
The wall body of 17 Crystallizer tubes is long-pending
The outer surface of 18 Crystallizer tubes
19 otch, rib
20 parabolic shape gaps
The length in 20a gap
21 wide sides and narrow side
22 crystallizer cross sections
23 plane parallel faces
24 identical corresponding surfaces
Claims (12)
1, continuous cast mold, be used for liquid metal and particularly molten steel are cast into the polygon strand under high casting rate, the breaking down strand, rough section bar continuous casting billet (1) etc., this continuous cast mold is made up of the tube type mold (2) of copper or copper alloy, its entrance cross-section (3) has cross section expansion district (5) and has angular radius (8) at the outlet cross section (6) that casting side (4) goes up relative continuous casting outlet side (7), it is characterized in that, inner geometry shape of cross section (9) and relative dimensions (10) be under selected casting rate to can locally scatter and disappear to solidify heat similar and design with like the expansion phase of this tube type mold (2).
By the described continuous cast mold of claim 1, it is characterized in that 2, outer shape (12) similarly constitutes in the thermal expansion of respectively highly distinguishing last and crystallizer of tube type mold (2) at least.
3, by claim 1 or 2 described continuous cast molds, it is characterized in that, this tube type mold (2) aspect geometric cross-sectional shape (9) with separately the relevant formation of steel quality.
By one of claim 1 to 3 described continuous cast mold, it is characterized in that 4, this tube type mold (2) has and the corresponding section (15) than big conicity of the bigger contraction of continuous casting billet (1) in the zone of cast liquid level (13).
5, press one of claim 1 to 4 described continuous cast mold, it is characterized in that, below the section (15) of big conicity, tube type mold (2) has with the increase of base shell and the contraction phase of continuous casting billet (1) answers continually varying conicity (16) to constitute.
By one of claim 1 to 5 described continuous cast mold, it is characterized in that 6, below the section (15) of the big conicity of tube type mold (2), wall body long-pending (17) constitutes corresponding to the thermal change of each time quantum conduction.
By the described continuous cast mold of claim 6, it is characterized in that 7, in the zone that wall body long-pending (17) reduces, the outer surface (18) of tube type mold (2) strengthens by otch, rib (19) or analog.
8, by one of claim 1 to 7 described continuous cast mold, it is characterized in that begin, each cross-sectional side (3a) has roughly parabolic center clearance (20) on entrance cross-section (3).
By the described continuous cast mold of claim 8, it is characterized in that 9, roughly parabolic gap (20) is diminishing facing on the direction of continuous casting billet outlet side (7).
10, by one of claim 8 or 9 described continuous cast mold, it is characterized in that roughly the length (20a) of parabolic shape gap (20) almost extends on half crystallizer height (11) always.
By the described continuous cast mold of one of claim 8 to 10, it is characterized in that 11, roughly the length (20a) of parabolic shape gap (20) matches with amount of contraction on each wide side of crystallizer cross section (22) and/or narrow side (21) height.
12, by the described continuous cast mold of one of claim 8 to 11, it is characterized in that, in the zone of angular radius (8), constitute a plane parallel face (23) that connects respectively downwards, relative with similar corresponding surface (24) on the internal cross section shape (9).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10252723 | 2002-11-13 | ||
| DE10252723.7 | 2002-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1711144A true CN1711144A (en) | 2005-12-21 |
| CN1325196C CN1325196C (en) | 2007-07-11 |
Family
ID=32239996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801030659A Expired - Fee Related CN1325196C (en) | 2002-11-13 | 2003-10-01 | 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 |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP1567295A1 (en) |
| KR (1) | KR101060114B1 (en) |
| CN (1) | CN1325196C (en) |
| AU (1) | AU2003273929A1 (en) |
| BR (1) | BR0316249B1 (en) |
| CA (1) | CA2506078C (en) |
| DE (1) | DE10351348A1 (en) |
| PL (1) | PL375369A1 (en) |
| RU (1) | RU2320453C2 (en) |
| UA (1) | UA79025C2 (en) |
| WO (1) | WO2004043628A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2004212942A1 (en) | 2003-02-14 | 2004-09-02 | Depuy Spine, Inc. | In-situ formed intervertebral fusion device |
| DE102005039994A1 (en) * | 2005-08-24 | 2007-03-08 | Sms Demag Ag | Mold for a continuous casting plant |
| EP2292350A1 (en) * | 2009-08-04 | 2011-03-09 | Siemens VAI Metals Technologies S.r.l. | Mould for continous casting of long or flat products, cooling jacket designed to cooperate with such a mould and assembly comprising such a mould and such cooling jacket |
| ITUD20110211A1 (en) * | 2011-12-23 | 2013-06-24 | Danieli Off Mecc | CRYSTALLIZER FOR CONTINUOUS CASTING |
| CN113333691B (en) * | 2021-05-25 | 2023-01-31 | 上海交通大学 | Casting mold for large-height-diameter ratio high-temperature alloy ingot casting and application |
| KR20230083055A (en) | 2021-12-02 | 2023-06-09 | 주식회사 포스코 | Method of mold and mold |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1554717A (en) * | 1975-06-16 | 1979-10-24 | Shrum L R | Moulds for the continuous casting of steel |
| US4207941A (en) * | 1975-06-16 | 1980-06-17 | Shrum Lorne R | Method of continuous casting of metal in a tapered mold and mold per se |
| ATE105750T1 (en) * | 1991-02-06 | 1994-06-15 | Concast Standard Ag | MOLD FOR CONTINUOUS CASTING OF METALS, ESPECIALLY STEEL. |
| US5409053A (en) * | 1991-02-06 | 1995-04-25 | Concast Standard Ag | Continuous casting mold |
| CN2288799Y (en) * | 1996-12-11 | 1998-08-26 | 刘治 | Small square billet continuous caster mould |
| JP4164163B2 (en) * | 1998-07-31 | 2008-10-08 | 株式会社神戸製鋼所 | Metal casting mold |
| US6374903B1 (en) | 2000-09-11 | 2002-04-23 | Ag Industries, Inc. | System and process for optimizing cooling in continuous casting mold |
-
2003
- 2003-01-10 UA UAA200505566A patent/UA79025C2/en unknown
- 2003-10-01 CA CA2506078A patent/CA2506078C/en not_active Expired - Fee Related
- 2003-10-01 KR KR1020057008362A patent/KR101060114B1/en not_active IP Right Cessation
- 2003-10-01 CN CNB2003801030659A patent/CN1325196C/en not_active Expired - Fee Related
- 2003-10-01 WO PCT/EP2003/010861 patent/WO2004043628A1/en not_active Application Discontinuation
- 2003-10-01 BR BRPI0316249-4A patent/BR0316249B1/en not_active IP Right Cessation
- 2003-10-01 EP EP03757896A patent/EP1567295A1/en not_active Ceased
- 2003-10-01 PL PL03375369A patent/PL375369A1/en not_active Application Discontinuation
- 2003-10-01 AU AU2003273929A patent/AU2003273929A1/en not_active Abandoned
- 2003-10-01 RU RU2005118100/02A patent/RU2320453C2/en not_active IP Right Cessation
- 2003-10-31 DE DE10351348A patent/DE10351348A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP1567295A1 (en) | 2005-08-31 |
| KR20050071681A (en) | 2005-07-07 |
| KR101060114B1 (en) | 2011-08-29 |
| BR0316249A (en) | 2005-10-04 |
| DE10351348A1 (en) | 2004-06-03 |
| AU2003273929A1 (en) | 2004-06-03 |
| WO2004043628A1 (en) | 2004-05-27 |
| UA79025C2 (en) | 2007-05-10 |
| PL375369A1 (en) | 2005-11-28 |
| CA2506078C (en) | 2012-05-15 |
| CN1325196C (en) | 2007-07-11 |
| BR0316249B1 (en) | 2011-10-04 |
| RU2005118100A (en) | 2006-01-20 |
| CA2506078A1 (en) | 2004-05-27 |
| RU2320453C2 (en) | 2008-03-27 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20151001 |
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| EXPY | Termination of patent right or utility model |