EP1918042A1 - Coquille pour la coulee d'ébauche de profiles - Google Patents
Coquille pour la coulee d'ébauche de profiles Download PDFInfo
- Publication number
- EP1918042A1 EP1918042A1 EP06021235A EP06021235A EP1918042A1 EP 1918042 A1 EP1918042 A1 EP 1918042A1 EP 06021235 A EP06021235 A EP 06021235A EP 06021235 A EP06021235 A EP 06021235A EP 1918042 A1 EP1918042 A1 EP 1918042A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- copper
- support plates
- cooling
- walls
- mold according
- 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.)
- Withdrawn
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910052802 copper Inorganic materials 0.000 claims abstract description 66
- 239000010949 copper Substances 0.000 claims abstract description 66
- 238000001816 cooling Methods 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims abstract description 28
- 230000008602 contraction Effects 0.000 claims abstract description 17
- 239000000945 filler Substances 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002028 premature 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
- 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
- B22D11/0406—Moulds with special profile
-
- 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
Definitions
- the invention relates to a continuous casting mold for pre-profiles, in particular double-T pre-profiles, according to the preamble of claim 1.
- Steel pre-profiles represent primary material for producing rolled steel profile beams in I, H, U and Z-cross-sectional shape and special sheet pile profiles.
- a method for continuous casting of such pre-profiles is, for example, in EP-B-1 419 021 disclosed. Continuous casting of pre-profiles was introduced industrially in the 70's and has become increasingly important in recent years as part of the general trend towards so-called near-net-shape casting.
- the pre-profiles are usually cast in a double-T cross-sectional shape, wherein the liquid steel is introduced substantially vertically into a so-called "dog-bone” continuous casting mold whose cavity cross section is composed of two flange parts and a web part. From the mold a Vorprofilstrang with liquid core of a strand guide with secondary cooling devices is supplied.
- VorprofilstrGermanen different types of Kokillenkonstruktionen known.
- block molds made of solid copper walls vertical bores are used to guide the cooling water.
- rod-shaped displacer are introduced to form annular or segmental water gaps.
- tube molds consisting of a copper tube and arranged outside the copper tube displacement body to form a water gap are known.
- the cooling water flows to cool the copper pipe.
- Such tube molds are until today only with smaller pre-profile cross-sections in use.
- Larger pre-profile cross-sections are preferably made with plate molds, consisting of two longitudinal and two transverse walls, which are preferably provided with drilled round or semicircular vertical cooling channels.
- a continuous casting mold for double-T-carrier which has a mold cavity consisting of a web portion and two flange parts.
- the mold cavity is bounded by two curved and two flat thin copper plates, which are each supported by a support plate.
- the support plates form a frame enclosing the copper plates.
- Large-area cut-outs on the support plates form cooling channels.
- By means of bolts and threaded collar the bent copper plate is attached to the support plate and formed cooling water channels between the thin copper plate and the support plate.
- Such bolts can not be installed for reasons of space along the convexly curved peripheral portions of the longitudinal sides of the mold cavity circumference.
- the invention has for its object to provide a continuous casting mold for pre-profiles, especially for double-T pre-profiles, which has a long service life and thereby reduces the Kokillenfest per ton of steel and on the other hand improves the surface quality of double-T pre-profiles.
- peripheral sections with shrinkage contraction of the cast strand shell are correspondingly strong and peripheral sections with gap formation contraction of the strand shell are correspondingly weakly coolable.
- cooling grooves of the support walls in the copper walls can at circumferential portions with shrinkage contraction, which usually project as a convex arc in the mold cavity, arranged in strand running direction cooling grooves are arranged with correspondingly small mutual distances.
- the cooling capacity in peripheral sections with shrinkage contraction can be dimensioned correspondingly high.
- the choice of a high cooling performance ensures that the surface temperature of the copper wall in the circumferential sections with shrinkage contraction compared to the prior art solutions sets lower. This reduces the Kokillenverschleiss or increases the life of the mold. At the same time, the solidification of the strand shell can be uniformized over its circumference and the quality of the cast strand can be improved. In the peripheral portions of the mold wall with Spalt Siegskontratation the strand shell, the cooling capacity of the mold wall can be chosen lower by arranging the cooling grooves with correspondingly larger mutual distances, ie adapted to the needs for a uniform surface temperature of the copper plates.
- the wall thickness of the cooled copper wall and the depth of the cooling slots must be selected. According to one embodiment, it is proposed to choose the copper wall thickness between 20-40 mm and the depth of the cooling slots with 30-60% of the copper wall thickness. An optimal width of the cooling slots is provided with 4 - 8 mm.
- the distribution of the cooling slots over the profile circumference is provided so that the distances in the peripheral portions with shrinkage contraction 30 to 50% of the distances in the peripheral sections with Spaltöntratation amount.
- Fillers in the web area can be made of steel or aluminum. According to an advantageous embodiment, it is proposed to provide patches in the web area between the copper and support plate made of plastic.
- anchor bolts preferably with a thread attached to the copper plates. These anchor bolts clamp the copper plates or the copper pipe to support plates.
- the anchor bolts can ensure a connection between the copper plate and the support wall via a profile bar with a dovetail or sliding block profile.
- Fig. 1 is a continuous casting mold for casting of double-T pre-profiles with a mold cavity cross section, consisting of a web part 2, two flange 3, 3 'and two transition parts 4, 4' is shown schematically.
- the mold is constructed as a plate mold.
- Two support plates 5, 5 ' are formed as longitudinal walls and two support plates 6, 6' as transverse walls.
- the support plates 5, 5 ', 6, 6' form a running around the mold frame.
- On the support plates 5, 5 ', and 6, 6' are copper walls in the form of copper plates 8, 8 ', and 9, 9' attached and supported.
- the copper plates 8, 8 'and 9, 9' are on the mold cavity 11 averted Sides provided with substantially vertical cooling grooves 12.
- Such cooling grooves 12 extend substantially over the entire Kokillengue and form together with the support plates 5, 5 ', 6, 6', or with the filler pieces 10, 10 'cooling channels.
- the cooling water is the cooling grooves 12 and removed.
- the strand shell shrinks with increasing cooling, wherein in peripheral portions 14 of the mold cavity, the strand crust in the direction of the copper plate (arrow 19) shrinks.
- This shrinkage in peripheral portions 14 is referred to as Aufschrumpfkontratation.
- the strand crust shrinks away from the copper plate (arrows 20).
- This shrinkage in the peripheral portions 15, 16, 17 is referred to as gap formation contraction.
- the distribution of the cooling grooves 12 in the copper plates 8, 8 ', 9, 9' is set differently in accordance with the shrinking direction towards the mold wall or away from the mold wall, so that smaller mutual spacings 23 (FIG. 2) in the circumferential sections 14 with shrinkage contraction ) are provided as in peripheral portions 15, 16, 17 with Spalt avoirskontratation.
- the thickness of the copper wall between 20-40 mm on the one hand and on the other hand, the arrangement of the cooling grooves 12 in the copper wall itself and not in the support plate or in the filler, it is possible to make the cooling in the peripheral sections with Aufschrumpfkontratation more effective and thereby reducing the surface temperature of the copper wall and at the same time increase the dimensional stability of the mold cavity 11.
- anchor bolts which connect the copper plates 8, 8 ', 9, 9' with the support plates 5, 5 ', 6, 6'.
- Fig. 2 the distribution of the cooling grooves 12 in the two peripheral portions 14 and 17 is shown in an enlarged scale.
- the distances 23 are 30 - 50% of the distances 24 in the peripheral portion 17.
- the cooling performance can be optimized by setting the distances and by simple Temperature measurements during the casting operation on the copper walls are determined and controlled.
- the depth 21 of the cooling grooves 12 is set between 30-60% of the thickness 22 of the copper plates and the width 26 of the cooling grooves between 4 - 8 mm.
- a copper pipe can be used instead of the four copper plates 8, 8 ', 9, 9' in Fig. 1, according to a further embodiment.
- FIG. 3 shows a fastening variant for copper plates 8 on support plates 5 by means of a profile bar 30.
- the profile bar 30 has a sliding stone-like profile. With several anchor bolts 31 of the profile bar 30 is fixed together with the copper plate 8 on the support plate 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06021235A EP1918042A1 (fr) | 2006-10-10 | 2006-10-10 | Coquille pour la coulee d'ébauche de profiles |
| PCT/EP2007/008131 WO2008043423A1 (fr) | 2006-10-10 | 2007-09-19 | Lingotière de coulée continue pour des préprofilés |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06021235A EP1918042A1 (fr) | 2006-10-10 | 2006-10-10 | Coquille pour la coulee d'ébauche de profiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1918042A1 true EP1918042A1 (fr) | 2008-05-07 |
Family
ID=37845386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06021235A Withdrawn EP1918042A1 (fr) | 2006-10-10 | 2006-10-10 | Coquille pour la coulee d'ébauche de profiles |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1918042A1 (fr) |
| WO (1) | WO2008043423A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008148465A1 (fr) * | 2007-06-04 | 2008-12-11 | Concast Ag | Coquille de coulée continue de blooms, de brames et de billettes |
| WO2010139437A1 (fr) * | 2009-06-03 | 2010-12-09 | Sms Concast Ag | Lingotière pour la coulée continue d'ébauches de profilés, en particulier d'ébauches de profilés en double t |
| CN107159854A (zh) * | 2017-04-28 | 2017-09-15 | 重庆市永川区益锐机械有限责任公司 | 大口径铜管铸造拉拔装置 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108084A (zh) * | 2015-09-15 | 2015-12-02 | 西峡龙成特种材料有限公司 | 金属连铸结晶器液冷窄面铜板 |
| DE102017211654A1 (de) * | 2017-07-07 | 2019-01-10 | Sms Group Gmbh | Seitenplatte einer Stranggießkokille |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5312449B2 (fr) * | 1975-07-23 | 1978-05-01 | ||
| JPH0999345A (ja) * | 1995-10-04 | 1997-04-15 | Nomura Tokin:Kk | ビームブランク鋳造用鋳型 |
| WO1997043063A1 (fr) * | 1996-05-13 | 1997-11-20 | Km Europa Metal Ag | Coquille a refroidissement par un liquide |
| JPH11226701A (ja) * | 1998-02-16 | 1999-08-24 | Chuetsu Metal Works Co Ltd | ビームブランク鋳片の連続鋳造用鋳型 |
| DE19823797A1 (de) * | 1998-05-28 | 1999-12-09 | Daimler Chrysler Ag | Vorrichtung und Verfahren zum Stranggießen von Werkstücken |
| US20040188056A1 (en) * | 2001-12-07 | 2004-09-30 | Roland Hauri | Chill tube for the continuous casting of metals |
-
2006
- 2006-10-10 EP EP06021235A patent/EP1918042A1/fr not_active Withdrawn
-
2007
- 2007-09-19 WO PCT/EP2007/008131 patent/WO2008043423A1/fr active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5312449B2 (fr) * | 1975-07-23 | 1978-05-01 | ||
| JPH0999345A (ja) * | 1995-10-04 | 1997-04-15 | Nomura Tokin:Kk | ビームブランク鋳造用鋳型 |
| WO1997043063A1 (fr) * | 1996-05-13 | 1997-11-20 | Km Europa Metal Ag | Coquille a refroidissement par un liquide |
| JPH11226701A (ja) * | 1998-02-16 | 1999-08-24 | Chuetsu Metal Works Co Ltd | ビームブランク鋳片の連続鋳造用鋳型 |
| DE19823797A1 (de) * | 1998-05-28 | 1999-12-09 | Daimler Chrysler Ag | Vorrichtung und Verfahren zum Stranggießen von Werkstücken |
| US20040188056A1 (en) * | 2001-12-07 | 2004-09-30 | Roland Hauri | Chill tube for the continuous casting of metals |
Non-Patent Citations (1)
| Title |
|---|
| DATABASE WPI Week 197821, Derwent World Patents Index; AN 1978-37738A, XP002425685 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008148465A1 (fr) * | 2007-06-04 | 2008-12-11 | Concast Ag | Coquille de coulée continue de blooms, de brames et de billettes |
| EA017205B1 (ru) * | 2007-06-04 | 2012-10-30 | Смс Конкаст Аг | Кристаллизатор для непрерывной разливки блюмов, слябов или сортовых заготовок |
| WO2010139437A1 (fr) * | 2009-06-03 | 2010-12-09 | Sms Concast Ag | Lingotière pour la coulée continue d'ébauches de profilés, en particulier d'ébauches de profilés en double t |
| EP2263815A1 (fr) * | 2009-06-03 | 2010-12-22 | Concast Ag | Lingotière pour coulée continue d'ebauches de poutre |
| CN102481625A (zh) * | 2009-06-03 | 2012-05-30 | Sms康卡斯特股份公司 | 用于连续铸造粗制型材、尤其双t形粗制型材的铸模 |
| CN107159854A (zh) * | 2017-04-28 | 2017-09-15 | 重庆市永川区益锐机械有限责任公司 | 大口径铜管铸造拉拔装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008043423A1 (fr) | 2008-04-17 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
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| AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
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| 17P | Request for examination filed |
Effective date: 20081107 |
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| AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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| 18W | Application withdrawn |
Effective date: 20081219 |