CN1447725A - Chilled continuous casting mould for casting metal - Google Patents
Chilled continuous casting mould for casting metal Download PDFInfo
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- CN1447725A CN1447725A CN01814553.1A CN01814553A CN1447725A CN 1447725 A CN1447725 A CN 1447725A CN 01814553 A CN01814553 A CN 01814553A CN 1447725 A CN1447725 A CN 1447725A
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 title claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 7
- 238000005266 casting Methods 0.000 title claims abstract description 5
- 239000002826 coolant Substances 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 96
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 58
- 239000010949 copper Substances 0.000 claims description 46
- 229910052802 copper Inorganic materials 0.000 claims description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 42
- 239000000498 cooling water Substances 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 13
- 230000001154 acute effect Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 230000005499 meniscus Effects 0.000 abstract 1
- 230000008646 thermal stress Effects 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 10
- 238000001953 recrystallisation Methods 0.000 description 7
- 239000011229 interlayer Substances 0.000 description 5
- 230000014509 gene expression Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 235000012149 noodles Nutrition 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910017770 Cu—Ag Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- 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
- B22D11/059—Mould materials or platings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention relates to a chilled continuous casting mould (1) for casting metal, in particular steel in slab format, said slabs having a thickness of between 40 and 400 mm and a width of between 200 and 3.500 mm. The mould has walls configured from plates (7, 7.1), into which coolant channels for chilling are incorporated. The aim of the invention is to improve a mould of this type to such an extent that the thermal stress over the entire mould, i.e. the thermal profile over the entire mould is evened out, thus allowing the surface temperature of the mould at the meniscus to be lowered. To achieve this, the width (26.1) of the coolant channels (29) is reduced in the direction of casting, in accordance with the heat current profile (2.1), over the entire mould (13), from the mould inlet (1.1) to the mould outlet (13.2).
Description
Technical field
The present invention relates to be used for the chill continuous cast mold of the metal of continuous casting steel billet specification and especially steel, here, strand especially has 40 millimeters-400 millimeters thickness and 200 millimeters-3500 millimeters width, and described crystallizer has the coolant guiding channel of wallboard and cooling usefulness.
Background technology
The known related content of metal continuous cast is described by Fig. 1.Utilize vibration crystallizer 1 but preferably the wall type crystallizer (it for example be designed to that roller core maintains static and the Crystallizer tube cover around two roll form) metal continuous cast and especially steel continuous casting caused the center 4 of heat J (2) through formed base shell 5, the slag film 6 that often has and inflow has the copper plate of crystallizer 7.1 of predetermined thickness 8 along gesture position drop U (3) from crystallizer or strand, up to crystallizer cooling water 9.8 be illustrated between slag and the crystallizer cooling water circulation line or the copper plate thickness between hot side and huyashi-chuuka (cold chinese-style noodles) here.Crystallizer cooling water 9 is that controlled speed (10), the Israel and Palestine of meter per second are that the predetermined pressure (11) that records at place, crystallizer cooling water inlet of unit and the controllable temperature T-0 (12) that records at place, crystallizer cooling water inlet flow along continuous casting direction 14 or with the continuous casting direction abreast on the contrary with crystallizer height 13 with the unit, so that absorb and the heat J (2) that is provided is provided off.The heat J (2) that is taken away by crystallizer cooling water 9 is by drag overall R-
Total(15) decision, and independent media 16 is depended in drag overall, it has independent resistance Ri (17), exactly is between strand center 4 and crystallizer cooling water 9.Resistance 17 is determined by its length I (18), its specific guide heating rate λ (19) and pipeline cross section F (20) thereof and has formed mass flow equation (20.1) together with gesture position drop U (3) and hot-fluid J (2) separately.Included the resistance of the independent media between crystallizer center 4 and crystallizer cooling water trend in this formula in, as the resistance of molten steel, strand shell, slag, refractory lining and crystallizer plate, described crystallizer plate especially is made of copper.
The hot-fluid that occurs on the phase boundary 21 between copper coin 7 and crystallizer cooling water 9 trends must overcome the interfacial resistance 22 between the copper of cooling water and crystallizer plate, thus one, between the phase boundary 21,21.1 that is illustrated in the phase boundary between copper coin 7 and slag film 6 or strand shell 5 or the hot side, copper coin 7 adjusts a surface temperature or a thermograde 25 respectively.This thermograde and heat flow rate per unit area on crystallizer height 13 and relevant in the interfacial resistance 22 at copper/water (21) phase boundary place.Known that also hot-fluid dwindles towards crystallizer outlet 13.2 from cast liquid level 30 according to the cross sectional shape 2.1 that is called as " plume ".
In mold structure so far, interfacial resistance 22 is constant on crystallizer height 13.The shape of cooling duct can by have a constant diameter and have or do not have cooling hole 28 (not shown) of plunger body 28.1 or the cooling seam 26 that has weather board 26.7 (Fig. 3 d, 3e) and have a constant cross section Q (26.3) is realized.
Generally speaking, in the prior art scope, all be such crystallizer specification (slab, bloom, little square billet, section bar base and band production equipment etc.) as mentioned herein, what promptly no matter use is cooling hole 28 or cooling seam 26, the water percentage of coverage (27.2) on the crystallizer width and the water percentage of coverage on the crystallizer height 13 on the geometry and and then cooling effect in its technology on all be the same.
By just below the cast liquid level, being close to base shell and the strand shell 5 contraction processes decision ground on crystallizer height 13 subsequently, the equivalent constructions of the crystallizer cooling on the crystallizer height or the same high hot-face temperature that causes higher hot-fluid and cause copper coin 23 thus simultaneously.High copper coin surface temperature 23 causes recrystallization temperature T-Cu-Re (31) overload hazard (seeing Fig. 3 c) of rolled copper slab again.
Mould temperature again (T-Cu-Re) overload hazard of this crystallizer plate is more and more higher along with the poring rate quickening.Therefore, in Fig. 2, schematically show the architectural feature and the craft technical feature of sheet billet and on-gauge plate billet crystallizer with form.
Can from the tabulation of crystallizer characteristic parameter, see, under the situation of sheet billet (32), by 2.2/3.2 MW/m
2The crystallizer thermic load of the rising of expression and feature expression hot-fluid (2) of crystallizer or thermic load is compared the water percentage of coverage (27.2) that has run into higher 60%-40%, the higher water flow velocity of 12 meter per seconds-8 meter per second, 25 millimeters-15 millimeters littler copper plate thickness (18.1) and the higher crystallizer water pressures (26.6) of 12 crust-8 crust with the standard slab.Under the situation of sheet billet, higher crystallizer thermic load or hot-fluid are to be caused by 0.4 millimeter-0.2 millimeter littler slag film thickness, higher sheet billet (32) poring rate (14) and little slab thickness (34/32) or (34.1).Can see simultaneously, the crystallizer surface temperature on that side (23) of steel according to poring rate do not coexist between 300 ℃-400 ℃ and this temperature is compared from the recrystallization temperature of rolled copper nearer with the standard slab.The recrystallization temperature of rolled copper does not coexist between 350 ℃ of (Cu-Ag)-700 ℃ (Cu-CrZr) or 500 ℃ (softening temperature) according to the copper material quality.
Because (at the crystallizer inlet) hydraulic pressure in hole (28) or cooling seam (26) is high and and then owing to mechanical protuberantia may occur towards the copper coin surface (hot side 21.1) of steel, so copper plate thickness (18.1) further reduce be difficult to finish.
Fig. 3 shows the known water-cooling apparatus that is used for plate slab crystallizer or thin slab mold, and it has cooling seam 26 and weather board 26.7.Fig. 3 a shows half broad side walls 7 and the steel flow 36 of the plate slab crystallizer that has narrow sidewall 7.1 and immerse the mouth of a river 35 and the strand 37 of base shell 5 is arranged in the crystallizer exit.From this figure, can see cooling seam on crystallizer height 13 that shape extends in parallel the samely and the position of pouring into a mould liquid level 30.
Fig. 3 b shows the cross section of the crystallizer broad side walls 7 that has water tank, and described water tank not only is used for feed water inlet 38.1, also is used for water return outlet or tank entry 38.2.38.1 or the changeover portion of the crystallizer cooling water in (26) or cooling hole (28, not shown) is stitched in 38.2 expressions from water tank (38.1) to cooling.
In addition, Fig. 3 b show one that constitute by a plurality of parts and have a crystallizer of fastening bolt 39, described fastening bolt or be used for will band cooling seam 40 copper coin and water tank 38 link together, or be used for the copper coin and the water tank 38 of cooling seam 40.1 do not link together, but be provided with an intermediate plate 41 at this, this intermediate plate is equipped with cooling seam 26.3 (for this reason seeing Fig. 3 d).Intermediate plate 41 also can directly form the wall (Fig. 4) of water tank 41.1.
In Fig. 3 c, as prior art show the cross sectional shape of crystallizer surface temperature (hot side) 23, hot-fluid J (2) and recrystallization temperature T-Cu-Re (31) on crystallizer height (13).
Shown in Fig. 3 c, two cross sectional shapes 23.1 (surface temperature cross sectional shape) and 2.1 (hot-fluid cross sectional shapes) with regard to function be similar to and thermic load near the recrystallization temperature 31 of copper, especially under the situation of high poring rate 14, thereby copper coin has relatively shorter service life in cast liquid level district 30.
Fig. 3 d shows a horizontal cross-section of crystallizer, as shown in the drawing, have that weather board 26.7 cooling seam 26 is arranged in parallel and cooling water 9 carries out the transition to cooling seam 26 and changes water refluxing opening 38.2 (38.1.1/38.2.1) from the cooling seam over to by crystallizer water changeover portion 38.2.1 from cistern water supply mouth 38.1.
In Fig. 3 e, illustrate parallel cooling seam 26 with the horizontal cross-section.Spacing 27 and copper plate thickness 8 between the water percentage of coverage 27.2 that the figure shows seam width 26.1, obtains by the ratio of spacing 27 between cooling duct width and the cooling duct, cooling duct cross section 26.3, weather board 26.7, the cooling duct.On the crystallizer height, section A-A '-architectural feature has been shown among the A " and B-B '-B ", wherein go out constant pipeline cross section F (20) and constant interfacial resistance (22) in crystallizer height adjusted, this but determines in the identical flow section of the crystallizer cooling water 9 with constant Nernst ' sche phase region (flow velocity=0), and this phase region is littler when flow velocity increases.
Fig. 4 shows the known structure of presumable crystallizer broad side walls 7, and it is made of copper coin and water tank.Crystallizer can be made of the copper coin of a band cooling seam 40.1 and the intermediate plate (interlayer) and the water tank 38 (component 4b) of a band cooling seam, or by one not with the copper coin of cooling seam 40.1, have intermediate plate (component 4c) the cooling seam and that constitute water tank wall simultaneously and form.Component 4d shows hot-fluid J (2.1) and the cross sectional shape of thermic load and the recrystallization temperature (31) of rolled copper on the crystallizer height once more.
Summary of the invention
Task of the present invention is, a kind of like this continuous cast mold is provided, wherein at i.e. can the become uniformity and thereby reduced crystallizer surface temperature at cast liquid level place of hot cross-section shape on the crystallizer height of the thermic load on the crystallizer height.
Finish this task by continuous cast mold with claim 1 feature.Be disclosed in the dependent claims favourable form of implementation.
Propose so to improve the continuous cast mold of the above-mentioned type, promptly on the cast direction, the width of coolant guiding channel dwindles between crystallizer inlet and crystallizer outlet according to the hot-fluid cross sectional shape on the crystallizer height.
With width means conduit wall elongation, this extension trend (basically) is along the plate inwall of heat.In this case, the cross section of cooling duct preferably becomes rectangle.Also it is contemplated that elliptical shape.
According to the present invention, the boundary between crystallizer wooden partition and crystallizer water dwindles towards the crystallizer outlet from the crystallizer inlet.
According to first form of implementation, on the cast direction, the width of coolant guiding channel dwindles the wherein boundary line of a coolant guiding channel or adjacent coolant guiding channel or interface not parallel extension from the crystallizer inlet towards the crystallizer outlet according to the first approximation function of the hot-fluid cross sectional shape on the crystallizer height.
According to second form of implementation, the width of coolant guiding channel dwindles according to the first approximation function is linear on the cast direction, wherein the boundary line of a coolant guiding channel or adjacent coolant guiding channel or interface do not extend in parallel, and extend but be in an acute angle ground.
This means, article one, the width separately of coolant guiding channel linearity on the crystallizer height is dwindled, wherein cross section becomes the interface of the adjacency channel of rectangle to separate with predetermined angular, perhaps see ground on the cross section that a convenience center that is parallel to cold plate surface ground and passage intersects, the line of the adjacency channel of cross section ovalisation is predetermined angular of formation each other.
According to a particularly preferred form of implementation, so form the cooling duct, promptly on the cast direction, the degree of depth of cooling duct increases from the crystallizer crystallizer export place that enters the mouth on the crystallizer height.
The degree of depth refers to such cooling duct size, promptly needs this size in width when reference area relevantly.
Therefore, propose according to a particularly preferred form of implementation, reduce degree according to width, the degree of depth on the crystallizer height increases the degree respective change, article one, the size of each cross section of cooling duct remains unchanged from the crystallizer crystallizer export place that enters the mouth, thereby the cooling medium flow velocity in the cooling-water duct between crystallizer inlet and crystallizer outlet is constant.
According to the constant resistance of the cooling duct between crystallizer inlet and crystallizer outlet, the cooling water flow velocity remains unchanged.
Water tank is preferably used in cooling water to the cooling duct that is opened in the crystallizer wallboard is provided.In this case, the water tank outlet is arranged on the crystallizer entrance height, and tank entry is arranged on the height of crystallizer outlet.Advantageously, water infeed mouthful the crystallizer porch be arranged on the cast liquid level above, and water return outlet is arranged on the crystallizer exit, so that make not heated in the cast liquid level district that thereunder generates high heat load and have maximum one or dried up evaporating point cold water farthest is under the pressure of 1 crust-25 crust.
Claim 7-12 has comprised other preferred feature.
The cooling duct can be cooling seam or hole.That side back to the crystallizer die cavity of cooling seam slave plate rises and is opened in the described plate, the cooling seam is closed by correspondingly configured weather board, so that on the crystallizer height, adjust and form required cross section, width on its crystallizer height is matched with the wide variety that curve is moved towards in the cooling duct from the crystallizer crystallizer export place that enters the mouth, be that it dwindles, with situation that the back side of plate flushes under, its thickness on the crystallizer height from crystallizer preferably corresponding the dwindling of crystallizer export place that enter the mouth.
Description of drawings
Below, describe embodiments of the invention in conjunction with the accompanying drawings in detail, wherein:
Fig. 1-Fig. 4 represents prior art for example;
Fig. 5,6 expressions example of the present invention.
Concrete form of implementation
Now, against existing technologies and in conjunction with Fig. 5,6 the present invention is described for example.Represent with same tag with the parts that Fig. 1-crystallizer shown in Figure 4 is identical.
Component 5a shows characteristics of the present invention, wherein adjacent cooling seam 29 or its line of demarcation are not to extend abreast, but exporting 13.2 ground from crystallizer inlet 13.1 or cast liquid level 30 to crystallizer, dwindles cooling seam width, thereby channel cross-section or interface F (20) have functional relation with heat flow density or hot-fluid cross sectional shape.Simultaneously, by the corresponding increase cooling duct degree of depth 26.2 (Fig. 5 b), cooling-water flow cross section Q (26.3) and and then the flowing velocity 26.5 of water can according to the first approximation function remain unchanged.Becoming the interface of the cooling duct of cooling seam 29 forms is not to extend in parallel to each other, but is in legs and feet 29.2.In cast during sheet billet, water percentage of coverage 27.2 or cross-section of pipeline 20 are for example the most high in 100% and equal 30% in crystallizer exit minimum at cast liquid level 30 places.
In Fig. 5 c, with hot-fluid cross sectional shape 2.1 and again mould temperature 31 contrast ground show the uniform crystallizer thermic load on crystallizer height 13 that becomes thus.As shown in the figure, the hot-face temperature 23.2 of copper coin 7 is lower, and it changes regularly, and simultaneously, copper coin has prolonged service life.
Component 5d show the section A-A of the broad side walls 7 from crystallizer inlet 13.1 to crystallizer outlet 13.2 crystallizer plate (40) and that be used for the interlayer mode that is used to have not parallel cooling seam '-A " and B-B '-B ", described interlayer mode is meant that the crystallizer strip has an intermediate plate 41, according to the present invention, uneven cooling seam 29 is opened in this intermediate plate.
Shown in this figure is clear, although the water percentage of coverage in cast liquid level district 30 is higher, but flow velocity remains unchanged, and this is because flow cross section Q (26.3) is by remaining unchanged from crystallizer corresponding increase cooling duct, the crystallizer export place degree of depth 26.2 that enters the mouth on the crystallizer height.
Component 5e shows cooling duct 29 and the deflector 29.1 that exports 13.2 places at crystallizer inlet 13.1 and crystallizer, and the width and the degree of depth of described cooling duct change.
The relative prior art of Fig. 6 (component 6ab) shows solution of the present invention (component 6b).In principle, the solution that is proposed can change the crystallizer of band cooling hole (not shown) into regard to the cooling seam 29 of band guide plate 29.1, and its mesopore cross section can change by adding taper mast (not shown) in the length of mould scope.
The Reference numeral list The 1-crystallizer that vibrates; 2-hot-fluid J; 2.1-the hot-fluid cross sectional shape (plume) on the crystallizer height; 3-gesture position drop U; 4-crystallizer center or strand center; 5-base shell; 6-slag film; The 7-crystallizer Plate, broad side walls; 7.1-the crystallizer plate, narrow sidewall; 8-is between slag and water or at hot side and cold Copper plate thickness between the face; 9-crystallizer cooling water; 10-crystallizer cooling water flow velocity, meter per second; 11-is at the crystallizer cooling water pressure at place, crystallizer cooling water inlet, and measurement unit is bar; 12-Crystallizer cooling water temperature T-0 at crystallizer coolant outlet place, unit ℃; 13-is at throwing Crystallizer height on direction or the length of mould direction and that be parallel to poring rate; 13.1-knot Brilliant device entrance; 13.2-crystallizer outlet; The 14-Continuous Casting Square to and poring rate, rice/minute (the highest It is 15 meters/part); 15-drag overall R-total The independent media of 16-is such as crystallizer center (4) With crystallizer cooling water (9) such as molten steel, refractory material, the base shell is such as copper crystallizer plate; 17-Independent resistance Ri; 18-resistance length I, unit rice; 18.1-copper plate thickness I-Cu, hot side/cold Between the face, measurement unit's millimeter; 18.2-slag film thickness I, measurement unit's millimeter; The 19-specific guide Heating rate λ, the W/K * m of measurement unit; 20-pipeline cross section F; 20.1-mass flow equation U=∑ Ri * J, the ∑ ri=(i of 1/ λ * F); The phase boundary of 21-copper coin (7)/crystallizer cooling water (9), Huyashi-chuuka (cold chinese-style noodles); 21.1-the phase boundary of copper coin (7), slag film (8) or base shell (5), hot side; 22-copper The interfacial resistance of/water, Nernst ' sche interlayer; The copper of the parallel cooling seam of 23-(26)/base shell Surface temperature, hot side; 23.1-the cross sectional shape of the surface temperature on the crystallizer height; 23.2-Hot side, the temperature of not parallel cooling seam; 23.2.1-the hot cross-section of not parallel cooling seam 29; 24-The surface temperature of copper/water, huyashi-chuuka (cold chinese-style noodles); 24.1-the cross section of the surface temperature of copper/water (huyashi-chuuka (cold chinese-style noodles)); 25-The copper plate temperature gradient; 26-becomes cooling parallel on the crystallizer height to stitch the cooling duct of form; 26.1-cooling duct width; 26.2-the cooling duct degree of depth; 26.3-cooling duct cross section or stream Moving cross section Q; 26.4-the cooling duct length corresponding to crystallizer height (13); 26.5-stream Dynamic resistance; 26.6-the hydraulic pressure in the crystallizer porch; 26.7-weather board; The 27-cooling duct it Between spacing; 27.1-tabula width; 27.2-the water percentage of coverage on the crystallizer width, quilt The crystallizer width that is defined as maximum cooling deducts directly behind the crystallizer width of cooling divided by quilt The crystallizer width of cooling perhaps, is not defined as between the cooling duct according to first approximation function ground Apart to deduct the tabula width thick in the cooling duct spacing, this is corresponding in mass flow equation (20) Pipeline cross section F (20) on the meaning; The 28-Cooling Holes; 28.1-the plunger stage, plunger; 29-The cooling seam, mast, they upward extend at crystallizer height (13) not parallelly; 29.1-water guide Plate; 29.2-the angle of linearly extended but uneven cooling seam (29); 30-pours into a mould liquid level The district, the cast liquid level; The recrystallization actuator temperature T-Cu-Re of the cold rolling copper plate of crystallizer of 31-; The 32-thin plate Base, the 40-150 millimeters thick; 33-standard slab, thick 400-150 millimeter; The 34-slab thickness, Slab thickness; 34.1-150-40 the sheet billet of millimeter; 34.2-400-150 the on-gauge plate of millimeter Base; 35-soaking water gap SEN; 35.1-lubrication of crystallizer powder; 35.2-continuous casting slag; The 36-molten steel Stream; The 37-strand; The 38-water tank; 38.1-water is for entrance, water tank exports; 38.1.1-cooling water Changeover portion from water tank (38.1) to cooling seam (26 or 29); 38.2-water return outlet, water tank Entrance; 38.2.1-the transition of crystallizer water from cooling seam (26 or 29) to water tank (38.2) Section; The fastening bolt of 39-water tank/copper coin; The copper coin of 40-band cooling seam; 40.1-not cooling Seam but the copper coin of an intermediate plate (41) is arranged; The intermediate plate (interlayer) of 41-band cooling seam; 41.1-The intermediate plate (41) of band cooling seam, it directly consists of water tank wall.
Claims (14)
1, be used for according to the slab specification and this especially according to thick be 40 millimeters-400 millimeters and wide be the chill continuous cast mold (1) of 200 millimeters-3500 millimeters slab specification continuous casting of metals and especially steel, it has by plate (7,7.1) crystallizer wall and the cooling coolant guiding channel that constitute, it is characterized in that, on the cast direction, the width (26.1) of coolant guiding channel (29) depends on that the hot-fluid cross sectional shape on crystallizer height (13) exports (13.2) (2.1) and dwindles from crystallizer inlet (13.1) towards crystallizer.
2, chill continuous cast mold as claimed in claim 1, it is characterized in that, on the cast direction, the width of this coolant guiding channel (26.1) according to crystallizer height (13) on the first approximation function of hot-fluid cross sectional shape export between (13.2) with crystallizer at crystallizer inlet (13.1) and dwindle.
3, chill continuous cast mold as claimed in claim 1, it is characterized in that, on the cast direction, the width of coolant guiding channel (16.1) dwindles according to first approximation function ground linearity, wherein the line of demarcation of a coolant guiding channel or adjacent coolant guiding channel or interface are not to extend in parallel to each other, in an acute anglely extend but intersect (29.2).
As claim 1,2 or 3 described chill continuous cast molds, it is characterized in that 4, on the cast direction, upward outlet increases the degree of depth of coolant guiding channel (26.2) (13.2) from crystallizer inlet (13.1) to crystallizer at crystallizer height (13).
5, chill continuous cast mold as claimed in claim 4, it is characterized in that, reduce degree according to width, the degree of depth (26.2) on crystallizer height (13) increases the degree respective change, article one, outlet remains unchanged the size of each cross section (26.3) of cooling duct (13.2) from crystallizer inlet (13.1) to crystallizer, thereby the cooling medium flow velocity in the coolant guiding channel between crystallizer inlet (13.1) and crystallizer outlet (13.2) is constant.
6, as the described chill continuous cast mold of one of claim 1-5, it is characterized in that, be used for to the water tank (38) of cooling duct cooling water supply and the plate (7 of crystallizer wall, 7.1) and especially copper coin connection, wherein water tank outlet (38.1) is arranged on the height of crystallizer inlet (13.1), and tank entry (38.2) is arranged on the height of crystallizer outlet (13.2).
7, as the described chill continuous cast mold of one of claim 1-6, it is characterized in that, at crystallizer inlet (13.1) and especially on the height of cast liquid level (30), cooling medium percentage of coverage and especially water percentage of coverage (27.2) are up to 100% and open and especially equal 100%, and locate in crystallizer outlet (13.2), described cooling medium percentage of coverage and especially water percentage of coverage are minimum be 30% and especially minimum be 10%, wherein said cooling medium percentage of coverage and especially water percentage of coverage are by the crystallizer width of maximum cooling and the direct difference of the crystallizer width of cooling recently limiting with the crystallizer width of accepting cooling not.
As the described chill continuous cast mold of one of claim 1-7, it is characterized in that 8, described cooling medium is that cooling water is mobile in the passage length scope with the flow velocity of 25 meter per seconds-2 meter per second.
As the described chill continuous cast mold of one of claim 1-8, it is characterized in that 9, the thickness that moves towards the copper coin (7,7.1) between the curve at liquation and cooling-water duct is not less than 5 millimeters.
As the described chill continuous cast mold of one of claim 1-9, it is characterized in that 10, the crystallizer cooling water pressure of locating in water tank outlet (38.1) (11) is 2 crust-25 crust.
11, as the described chill continuous cast mold of one of claim 1-10, it is characterized in that casting speed V
G(14) equal 1 meter/minute-15 meters/minute.
12, as the described chill continuous cast mold of one of claim 1-11, it is characterized in that, it is so worked, and promptly immerses the mouth of a river (SEN) (35) by one and injects molten steel and add the lubricated powder (35.1) of crystallizer, and this continuous cast mold is a vertical oscillation crystallizer (1).
13, as the described chill continuous cast mold of one of claim 1-12, it is characterized in that, the cooling duct is a cooling seam (29), their slave plates (7,7.1) that side back to the crystallizer die cavity be opened in the described plate, cooling seam (29) is closed by correspondingly configured weather board (29.1), thereby adjust and form required cross section on crystallizer height (13), outlet is matched with the wide variety that curve is moved towards in the cooling duct to its width (13.2) from crystallizer inlet (13.1) to crystallizer at crystallizer height (13).
As the described chill continuous cast mold of one of claim 1-12, it is characterized in that 14, these cooling ducts are cooling holes, the taper mast is loaded in the described cooling hole.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10041399.4 | 2000-08-23 | ||
| DE10041399 | 2000-08-23 | ||
| DE10138988A DE10138988C2 (en) | 2000-08-23 | 2001-08-15 | Chilled continuous casting mold for casting metal |
| DE10138988.4 | 2001-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1447725A true CN1447725A (en) | 2003-10-08 |
Family
ID=26006791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01814553.1A Pending CN1447725A (en) | 2000-08-23 | 2001-08-21 | Chilled continuous casting mould for casting metal |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20050098297A1 (en) |
| EP (1) | EP1313578A1 (en) |
| JP (1) | JP2004506520A (en) |
| CN (1) | CN1447725A (en) |
| AU (1) | AU2001291780A1 (en) |
| BR (1) | BR0113481A (en) |
| CA (1) | CA2420232A1 (en) |
| CZ (1) | CZ2003518A3 (en) |
| HU (1) | HUP0301470A2 (en) |
| MX (1) | MXPA03001578A (en) |
| PL (1) | PL360841A1 (en) |
| RU (1) | RU2003107845A (en) |
| WO (1) | WO2002016061A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1876275B (en) * | 2005-06-07 | 2012-01-11 | Km欧洲钢铁股份有限公司 | Liquid-cooled permanent mold for the continuous casting of metals |
| CN104722724A (en) * | 2013-12-23 | 2015-06-24 | Posco公司 | Mold for continuous casting and cooling method thereof |
| CN111036866A (en) * | 2019-12-18 | 2020-04-21 | 河北工业职业技术学院 | Continuous casting slab crystallizer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI268821B (en) * | 2002-04-27 | 2006-12-21 | Sms Demag Ag | Adjustment of heat transfer in continuous casting molds in particular in the region of the meniscus |
| DE10304543B3 (en) * | 2003-02-04 | 2004-05-27 | Sms Demag Ag | Continuous casting of liquid metals, especially liquid steel, comprises partially reducing the heat transfer number during cooling in the region of the heat flow shadow of the submerged nozzle |
| JP6358178B2 (en) * | 2015-06-30 | 2018-07-18 | Ｊｆｅスチール株式会社 | Continuous casting method and mold cooling water control device |
| CZ2016267A3 (en) * | 2016-05-10 | 2017-06-28 | MATERIÁLOVÝ A METALURGICKÝ VÝZKUM s.r.o. | An ingot mould assembly with water cooling |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1082988A (en) * | 1964-12-22 | 1967-09-13 | British Iron Steel Research | Moulds |
| US3763920A (en) * | 1972-03-16 | 1973-10-09 | United States Steel Corp | Water inlet construction for continuous-casting molds |
| JPS5861952A (en) * | 1981-10-06 | 1983-04-13 | Hitachi Zosen Corp | Mold for continuous casting installation |
| JPS59133940A (en) * | 1983-01-21 | 1984-08-01 | Mishima Kosan Co Ltd | Mold for continuous casting |
| JPH0211249A (en) * | 1988-06-29 | 1990-01-16 | Kawasaki Steel Corp | Mold for continuous casting |
| US5207266A (en) * | 1992-01-03 | 1993-05-04 | Chuetsu Metal Works Co., Ltd. | Water-cooled copper casting mold |
-
2001
- 2001-08-21 MX MXPA03001578A patent/MXPA03001578A/en not_active Application Discontinuation
- 2001-08-21 US US10/362,253 patent/US20050098297A1/en not_active Abandoned
- 2001-08-21 CN CN01814553.1A patent/CN1447725A/en active Pending
- 2001-08-21 AU AU2001291780A patent/AU2001291780A1/en not_active Abandoned
- 2001-08-21 WO PCT/EP2001/009599 patent/WO2002016061A1/en not_active Application Discontinuation
- 2001-08-21 RU RU2003107845/02A patent/RU2003107845A/en not_active Application Discontinuation
- 2001-08-21 JP JP2002520973A patent/JP2004506520A/en not_active Withdrawn
- 2001-08-21 EP EP01971934A patent/EP1313578A1/en not_active Withdrawn
- 2001-08-21 HU HU0301470A patent/HUP0301470A2/en unknown
- 2001-08-21 CZ CZ2003518A patent/CZ2003518A3/en unknown
- 2001-08-21 CA CA002420232A patent/CA2420232A1/en not_active Abandoned
- 2001-08-21 PL PL36084101A patent/PL360841A1/en unknown
- 2001-08-21 BR BR0113481-7A patent/BR0113481A/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1876275B (en) * | 2005-06-07 | 2012-01-11 | Km欧洲钢铁股份有限公司 | Liquid-cooled permanent mold for the continuous casting of metals |
| CN104722724A (en) * | 2013-12-23 | 2015-06-24 | Posco公司 | Mold for continuous casting and cooling method thereof |
| CN111036866A (en) * | 2019-12-18 | 2020-04-21 | 河北工业职业技术学院 | Continuous casting slab crystallizer |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050098297A1 (en) | 2005-05-12 |
| MXPA03001578A (en) | 2003-10-15 |
| WO2002016061A1 (en) | 2002-02-28 |
| BR0113481A (en) | 2003-07-15 |
| CZ2003518A3 (en) | 2003-08-13 |
| CA2420232A1 (en) | 2003-02-19 |
| JP2004506520A (en) | 2004-03-04 |
| HUP0301470A2 (en) | 2003-08-28 |
| AU2001291780A1 (en) | 2002-03-04 |
| RU2003107845A (en) | 2004-12-27 |
| EP1313578A1 (en) | 2003-05-28 |
| PL360841A1 (en) | 2004-09-20 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |