CN109702155A - A continuous casting machine and its near-net shaped special-shaped broken continuous casting mold - Google Patents
A continuous casting machine and its near-net shaped special-shaped broken continuous casting mold Download PDFInfo
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- CN109702155A CN109702155A CN201910194286.4A CN201910194286A CN109702155A CN 109702155 A CN109702155 A CN 109702155A CN 201910194286 A CN201910194286 A CN 201910194286A CN 109702155 A CN109702155 A CN 109702155A
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- 238000009749 continuous casting Methods 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 79
- 229910052802 copper Inorganic materials 0.000 claims abstract description 79
- 239000010949 copper Substances 0.000 claims abstract description 79
- 238000001816 cooling Methods 0.000 claims abstract description 34
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000005856 abnormality Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 11
- 238000012797 qualification Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000029154 Narrow face Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- Continuous Casting (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
This application discloses a kind of special-shaped bad continuous cast molds of near-net-shape, and several cooling plate components including stacked arrangement, each cooling plate component includes at least two pieces wide face copper sheet and at least two pieces of narrow copper plates for surrounding arrangement；The centre of the width face copper sheet and the narrow copper plate is equipped with the inner cavity that the cross sectional shape bad with near-net-shape abnormity is consistent；The width face copper sheet is equipped with several water holes perpendicular to the wide face copper sheet close to the position of the inner cavity, and the water hole size for being located at the angular position R of the wide face copper sheet is greater than the water hole size of the wing ending position and web position that are located at the wide face copper sheet.Crystallizer provided herein realizes the uniform cooling of near-net-shape continuous beam blank casting crystallizer different parts, improves near-net-shape shaped blank surface quality, improves near-net-shape shaped blank qualification rate.Disclosed herein as well is a kind of conticasters including the special-shaped bad continuous cast mold of above-mentioned near-net-shape.
Description
Technical field
This application involves continuous casting installation for casting fields, more particularly to a kind of special-shaped bad continuous cast mold of near-net-shape.In addition, this Shen
It please further relate to a kind of conticaster including the special-shaped bad continuous cast mold of above-mentioned near-net-shape.
Background technique
Currently, the cooling of near-net-shape continuous beam blank casting crystallizer is generally, round water hole cooling, leptoprosopy copper is arranged in wide face copper sheet
It is cooling that plate is arranged Rectangular Water Trough, also, wide face copper sheet circle water hole, narrow copper plate Rectangular Water Trough is equal in magnitude, is evenly arranged.
However, the wing slightly corner belongs to two dimension cooling, wingtip portion since near-net-shape continuous beam blank casting crystallizer section configuration is complicated
Position rapid heat dissipation, the angular position R is radiated for the hot-fluid intersection at edge of a wing position and web position, and specific surface area is small, and heat is difficult to export, R
Angular position heat dissipation is slow, and crystallizer inhomogeneous cooling is even, causes that the near-net-shape shaped blank wing slightly spot temperature is low, the angular position R temperature is high, makes
There is face crack at near-net-shape shaped blank R angular position stress concentration.
Therefore, the cooling efficiency of nearly continuous cast mold how is improved, product quality is improved, is that those skilled in the art are current
The technical issues that need to address.
Apply for content
The purpose of the application is to provide a kind of special-shaped bad continuous cast mold of near-net-shape, near-net-shape abnormity bad continuous cast mold
It can be effectively improved casting billet surface cooling velocity, improve the bad qualification rate of near-net-shape abnormity.The another object of the application is to provide
A kind of conticaster including the special-shaped bad continuous cast mold of above-mentioned near-net-shape.
To achieve the above object, the application provides the following technical solutions:
A kind of special-shaped bad continuous cast mold of near-net-shape, several cooling plate components including stacked arrangement, each heat dissipation
Board group part includes at least two pieces wide face copper sheet and at least two pieces of narrow copper plates for the circular arrangement for surrounding arrangement；Width face copper sheet
The inner cavity that the cross sectional shape bad with near-net-shape abnormity is consistent is equipped with the centre of the narrow copper plate；The width face copper sheet is close to institute
The position for stating inner cavity is equipped with several water holes perpendicular to the wide face copper sheet, and be located at the angular position R of the wide face copper sheet
Water hole size is greater than the water hole size of the wing ending position and web position that are located at the wide face copper sheet.
Preferably, the water hole is rounded, and the water hole diameter positioned at the wing ending position of the wide face copper sheet is 7.5-
8.5mm, the water hole diameter positioned at the web position of the wide face copper sheet is 9.5-10.5mm, positioned at the angle R of the wide face copper sheet
The water hole diameter at position is 15.5-16.5mm.
Preferably, the water hole diameter being arranged between wing ending position and the angular position R is 9.5-10.5mm.
Preferably, the outer ledge of the narrow copper plate is equipped with several Rectangular Water Troughs.
Preferably, the length of the Rectangular Water Trough is 23-25mm, width 4.5-5.5mm.
Preferably, the center in the water hole of the angular position R is at a distance from the inward flange of the angular position R corresponding position
39-40mm, the center in the water hole at the web position are 41.5- at a distance from the inward flange of web position corresponding position
42.5mm, the center in the water hole of wing ending position are 25-26mm at a distance from the inward flange of wing ending position corresponding position.
Preferably, each cooling plate component includes symmetrically arranged two pieces wide face copper sheets and two pieces of narrow copper plates,
The width face copper sheet and the narrow copper plate, which are surround, forms rectangular configuration.
The application also provides a kind of conticaster, including the special-shaped bad continuous cast mold of near-net-shape described in above-mentioned any one.
The special-shaped bad continuous cast mold of near-net-shape provided herein, several cooling plate components including stacked arrangement, often
A cooling plate component includes at least two pieces wide face copper sheet and at least two pieces of narrow copper plates for surrounding arrangement；Width face copper sheet
The inner cavity that the cross sectional shape bad with near-net-shape abnormity is consistent is equipped with the centre of the narrow copper plate；The width face copper sheet is close to institute
The position for stating inner cavity is equipped with several water holes perpendicular to the wide face copper sheet, and be located at the angular position R of the wide face copper sheet
Water hole size is greater than the water hole size of the wing ending position and web position that are located at the wide face copper sheet.Nearly end provided herein
Type abnormity bad continuous cast mold, wingtip position rapid heat dissipation, R angle complicated for near-net-shape continuous beam blank casting crystallizer section configuration
Radiate slow feature at position, and the round cooling water hole of different-diameter size is arranged in Divisional, realizes near-net-shape continuous beam blank casting
The uniform cooling of crystallizer different parts improves near-net-shape shaped blank surface quality, improves near-net-shape shaped blank qualification rate.
Conticaster provided herein is equipped with the special-shaped bad continuous cast mold of above-mentioned near-net-shape, due to the near-net-shape abnormity
Bad continuous cast mold has above-mentioned technique effect, and therefore, the conticaster equipped with the special-shaped bad continuous cast mold of the near-net-shape should also be as
With corresponding technical effect.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural representation of specific embodiment of the special-shaped bad continuous cast mold of near-net-shape provided herein
Figure；
Wherein: 1. wide face copper sheets, 2. narrow copper plates, 3. water holes, 4. sinks, 5. wing ending positions, 6. wings slightly corner, the angle 7.R
Position, 8. web positions, 9. edge of a wing positions.
Specific embodiment
The core of the application is to provide a kind of special-shaped bad continuous cast mold of near-net-shape, near-net-shape abnormity bad continuous cast mold
It can be effectively improved casting billet surface cooling velocity, improve the bad qualification rate of near-net-shape abnormity.Another core of the application is to provide
A kind of conticaster including the special-shaped bad continuous cast mold of above-mentioned near-net-shape.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Referring to FIG. 1, Fig. 1 is a kind of specific embodiment of the special-shaped bad continuous cast mold of near-net-shape provided herein
Structural schematic diagram.
In this embodiment, the special-shaped bad continuous cast mold of near-net-shape includes several cooling plate components of stacked arrangement, closely
Whole type abnormity is badly located at the inside of cooling plate component, and the cooling water of flowing is equipped with inside cooling plate component, for near-net-shape abnormity
Bad decrease temperature crystalline；
Specifically, each cooling plate component includes at least two pieces wide face copper sheet 1 and at least two blocks of leptoprosopy copper for surrounding arrangement
Plate 2；Wide face copper sheet 1 is equipped with the inner cavity that the cross sectional shape bad with near-net-shape abnormity is consistent with the centre of narrow copper plate 2；Wide face copper sheet
1 is equipped with several water holes 3 perpendicular to wide face copper sheet 1 close to the position of inner cavity, and is located at the water of the angular position R 7 of wide face copper sheet 1
3 size of hole is greater than 3 size of water hole of wing ending position 5 and web position 8 positioned at wide face copper sheet 1.
What needs to be explained here is that as shown in Figure 1, the wing slightly corner 6 belongs to two-dimentional cooling, wingtip position rapid heat dissipation, the angular position R
7 be the hot-fluid intersection at edge of a wing position 9 and web position 8, and the heat dissipation specific surface area of the angular position R 7 is small, and heat is difficult to export, the angle R
Position 7 is radiated slowly, and crystallizer inhomogeneous cooling is even, causes that 5 temperature of near-net-shape shaped blank wing ending position are low, 7 temperature of the angular position R is high.
On the basis of the respective embodiments described above, water hole 3 is rounded, also, be located at the wing ending position 5 of wide face copper sheet 1
3 diameter of water hole is 7.5-8.5mm, and 3 diameter of water hole positioned at the web position 8 of wide face copper sheet 1 is 9.5-10.5mm, is located at wide face
3 diameter of water hole of the angular position R 7 of copper sheet 1 is 15.5-16.5mm.
On the basis of the respective embodiments described above, 3 diameter of water hole between wing ending position 5 and the angular position R 7 is 9.5-
10.5mm。
Preferably, to be arranged round water hole 3 in Wide-surface copper plate of crystallizer 1 cooling, and is radiated needs according to wide face different parts,
Diameter 8mm circle water hole 3 is set at wingtip position, diameter 16mm circle water hole 3 is set in the angular position R 7, web position 8 is arranged
Diameter 10mm circle water hole 3 is arranged in diameter 10mm circle water hole 3 between wingtip position and the angular position R 7, realizes that near-net-shape is different
The method that shape blank continuous casting crystallizer different parts uniformly cool down.
On the basis of the respective embodiments described above, the outer ledge of narrow copper plate 2 is equipped with several Rectangular Water Troughs 4, specifically,
Rectangular Water Trough 4 is arranged successively along the outer ledge of narrow copper plate 2.
On the basis of the respective embodiments described above, the length of Rectangular Water Trough 4 is 23-25mm, width 4.5-5.5mm, excellent
Choosing, 4 length of Rectangular Water Trough of narrow copper plate 2 is 24mm, width 5mm.
On the basis of the respective embodiments described above, the center in the water hole 3 of the angular position R 7 is interior with 7 corresponding position of the angular position R
The distance at edge is 39-40mm, and the center in the water hole 3 at web position 8 is at a distance from the inward flange of 8 corresponding position of web position
41.5-42.5mm, the center in the water hole 3 of wing ending position 5 are 25-26mm at a distance from the inward flange of 5 corresponding position of wing ending position.
Preferably, the center in the water hole 3 of the angular position R 7 is 39.2mm at a distance from the inward flange of 7 corresponding position of the angular position R,
Specifically, the arrangement radian in several water holes 3 of the angular position R 7 is identical as the arc of the inward flange of the angular position R 7, the water of the angular position R 7
The center in hole 3 and 7 corresponding position of the angular position R, the i.e. consistent position of radian；The center and web position in the water hole 3 at web position 8
The distance of the inward flange of 8 corresponding positions is 42mm, likewise, 3 orientation of water hole at web position 8 is parallel to web position 8
Inward flange direction, the distance between the center in the water hole 3 at web position 8 and 8 corresponding position of web position, i.e. web position 8
3 line of centres of water hole and web position 8 the distance between inward flange；The center and wing ending position in the water hole 3 of wing ending position 5
The distance of the inward flange of 5 corresponding positions is 25.2mm, likewise, 3 orientation of water hole of wing ending position 5 is parallel to wing ending position
5 inward flange direction, the distance between the center in the water hole 3 of wing ending position 5 and 5 corresponding position of wing ending position, i.e. wing ending position 5
3 line of centres of water hole and wing ending position 5 the distance between inward flange.
Above-mentioned setting, the water hole 3 of the angular position R 7 is compared with the existing technology closer to the marginal position of the angular position R 7, also, R
3 size of water hole of angular position 7 is bigger, to accelerate slab in the cooling velocity of the angular position R 7, and then matches the cooling at other positions
Speed guarantees that the cooling velocity of entire slab is consistent, high-quality.
On the basis of the respective embodiments described above, each cooling plate component includes symmetrically arranged two pieces wide face copper sheets 1
With two pieces of narrow copper plates 2, wide face copper sheet 1 and narrow copper plate 2 surround and form rectangular configuration.
Certainly, the quantity of the Rectangular Water Trough 4 in the round water hole 3 and narrow copper plate 2 of wide face copper sheet 1 should be according to the not syncrystallization
Device section makees specific design, it is not limited to size and shape given by the present embodiment.
Certainly, since the edge of the angular position R 7 is arc-shaped, in order to better meet its heat dissipation feature, from the wing slightly corner 6 to R
The position of angular position 7, the size in water hole 3 can be to gradually increase, and preferably increase to 16mm from 8mm, and increasing degree can
It is set with the number of more water inlet 3.
Crystallizer provided by the present embodiment, the rectangle in round water hole 3 and each narrow copper plate 2 on each wide face copper sheet 1
Sink 4 forms the channel of Cooling Water flowing after arranging, be passed through cooling water as needed before production, and adjust suitable cooling water
Amount.
Crystallizer provided by the present embodiment, by the setting in non-equal diameter circle water hole 3, in narrow face copper plate of crystallizer 2
It is cooling that Rectangular Water Trough 4 is set, it is cooling that round water hole 3 is arranged in Wide-surface copper plate of crystallizer 1, and according to wide face different parts heat dissipation need
It wants, diameter 8mm circle water hole 3 is set at wingtip position, diameter 16mm circle water hole 3 is set in the angular position R 7, web position 8 is set
Diameter 10mm circle water hole 3 is set, diameter 10mm circle water hole 3 is set between wingtip position and the angular position R 7, reduces wingtip
Position intensity of cooling increases 7 intensity of cooling of the angular position R, and it is uniform to realize near-net-shape continuous beam blank casting crystallizer different parts
Cooling method；Also, wingtip position rapid heat dissipation, R angular position complicated for near-net-shape continuous beam blank casting crystallizer section configuration
The slow feature of 7 heat dissipations, Divisional are arranged the round cooling water hole 3 of different-diameter size, realize near-net-shape continuous beam blank casting knot
The uniform cooling of brilliant device different parts improves near-net-shape shaped blank surface quality, improves near-net-shape shaped blank qualification rate.
It include that above-mentioned near-net-shape is different present invention also provides one kind other than the special-shaped bad continuous cast mold of above-mentioned near-net-shape
The conticaster of shape bad continuous cast mold, refer to the prior art for other Each parts of the conticaster, and repeats no more herein.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The special-shaped bad continuous cast mold of near-net-shape provided herein is described in detail above.It is used herein
The principle and implementation of this application are described for specific case, and the above embodiments are only used to help understand originally
The method and its core concept of application.It should be pointed out that for those skilled in the art, not departing from this Shen
Please under the premise of principle, can also to the application, some improvement and modification can also be carried out, these improvement and modification also fall into the application power
In the protection scope that benefit requires.
Claims (8)
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| CN201910194286.4A CN109702155A (en) | 2019-03-14 | 2019-03-14 | A continuous casting machine and its near-net shaped special-shaped broken continuous casting mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910194286.4A CN109702155A (en) | 2019-03-14 | 2019-03-14 | A continuous casting machine and its near-net shaped special-shaped broken continuous casting mold |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252983A (en) * | 2019-06-17 | 2019-09-20 | 山东钢铁股份有限公司 | A kind of micro alloyed steel near-net-shape abnormity Cracks In Continuous Cast Billets control method |
| CN111774540A (en) * | 2020-08-13 | 2020-10-16 | 西峡龙成特种材料有限公司 | A combined H-type crystallizer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11226701A (en) * | 1998-02-16 | 1999-08-24 | Chuetsu Metal Works Co Ltd | Mold for continuously casting cast beam blank |
| KR20100035827A (en) * | 2008-09-29 | 2010-04-07 | 현대제철 주식회사 | Mould for beam blank and mould cooling-capacity control method thereof |
| CN102151808A (en) * | 2011-04-22 | 2011-08-17 | 马鞍山钢铁股份有限公司 | Water cooling channel for large beam blank continuous casting crystallizer |
| WO2012175822A1 (en) * | 2011-06-23 | 2012-12-27 | Arcelormittal Investigacion Y Desarrollo, S.L. | Method and device for continuously casting a profile member blank |
| CN102962415A (en) * | 2012-12-14 | 2013-03-13 | 莱芜钢铁集团有限公司 | H-shaped combined crystallizer |
| JP2015167952A (en) * | 2014-03-05 | 2015-09-28 | Ｊｆｅスチール株式会社 | continuous casting method of steel |
| US20160082503A1 (en) * | 2013-04-23 | 2016-03-24 | Danieli & C. Officine Meccaniche Spa | Apparatus for Continuous Casting |
| CN207823897U (en) * | 2018-02-01 | 2018-09-07 | 秦皇岛瀚丰长白结晶器有限责任公司 | H-type crystallizer copper pipe with cooling groove |
| CN209773412U (en) * | 2019-03-14 | 2019-12-13 | 山东钢铁股份有限公司 | Continuous casting machine and near-net-shape special-shaped blank continuous casting crystallizer thereof |
-
2019
- 2019-03-14 CN CN201910194286.4A patent/CN109702155A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11226701A (en) * | 1998-02-16 | 1999-08-24 | Chuetsu Metal Works Co Ltd | Mold for continuously casting cast beam blank |
| KR20100035827A (en) * | 2008-09-29 | 2010-04-07 | 현대제철 주식회사 | Mould for beam blank and mould cooling-capacity control method thereof |
| CN102151808A (en) * | 2011-04-22 | 2011-08-17 | 马鞍山钢铁股份有限公司 | Water cooling channel for large beam blank continuous casting crystallizer |
| WO2012175822A1 (en) * | 2011-06-23 | 2012-12-27 | Arcelormittal Investigacion Y Desarrollo, S.L. | Method and device for continuously casting a profile member blank |
| CN102962415A (en) * | 2012-12-14 | 2013-03-13 | 莱芜钢铁集团有限公司 | H-shaped combined crystallizer |
| US20160082503A1 (en) * | 2013-04-23 | 2016-03-24 | Danieli & C. Officine Meccaniche Spa | Apparatus for Continuous Casting |
| JP2015167952A (en) * | 2014-03-05 | 2015-09-28 | Ｊｆｅスチール株式会社 | continuous casting method of steel |
| CN207823897U (en) * | 2018-02-01 | 2018-09-07 | 秦皇岛瀚丰长白结晶器有限责任公司 | H-type crystallizer copper pipe with cooling groove |
| CN209773412U (en) * | 2019-03-14 | 2019-12-13 | 山东钢铁股份有限公司 | Continuous casting machine and near-net-shape special-shaped blank continuous casting crystallizer thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252983A (en) * | 2019-06-17 | 2019-09-20 | 山东钢铁股份有限公司 | A kind of micro alloyed steel near-net-shape abnormity Cracks In Continuous Cast Billets control method |
| CN110252983B (en) * | 2019-06-17 | 2021-03-30 | 山东钢铁股份有限公司 | Method for controlling cracks of micro-alloy steel near-net-shape special-shaped continuous casting billet |
| CN111774540A (en) * | 2020-08-13 | 2020-10-16 | 西峡龙成特种材料有限公司 | A combined H-type crystallizer |
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