CN108907121A - power function crystallizer copper pipe - Google Patents
power function crystallizer copper pipe Download PDFInfo
- Publication number
- CN108907121A CN108907121A CN201811101831.2A CN201811101831A CN108907121A CN 108907121 A CN108907121 A CN 108907121A CN 201811101831 A CN201811101831 A CN 201811101831A CN 108907121 A CN108907121 A CN 108907121A
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- power function
- reading
- function crystallizer
- mouth
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 130
- 239000010949 copper Substances 0.000 title claims abstract description 130
- 238000009749 continuous casting Methods 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 230000001815 facial effect Effects 0.000 description 9
- 238000005266 casting Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005499 meniscus Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0406—Moulds with special profile
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The present invention provides a kind of power function crystallizer copper pipe, for solving the problems, such as that slab quality is bad in the prior art.The present invention provides a kind of power function crystallizer copper pipe, the power function crystallizer copper pipe is rectangular tube, one end of the power function crystallizer copper pipe is that copper pipe is suitable for reading, the other end of the power function crystallizer copper pipe is mouth under copper pipe, and the inner cavity of the power function crystallizer copper pipe is gradually reduced and in power function variation from the copper pipe is suitable for reading to mouth under the copper pipe.Copper pipe face taper and diagonal line taper use power function curve, more meet the solidification shrinkage rule of slab in the longitudinal direction, guarantee that slab temperature and stress distributions are uniform, provide guarantee for stable high-speed continuous casting in the circumferential.
Description
Technical field
The present invention relates to metal freezings and continuously casting technical field, more particularly to a kind of power function crystallizer copper pipe.
Background technique
Domestic steel industry Benefit Drops, cost efficiency are the important channel of iron and steel enterprise's survival and development, high-speed continuous casting
Technology can reduce conticaster fluxion, reduce construction investment and production and operation cost.In recent years, many steel enterprises are fast to continuous casting is improved
The expectation of degree is than stronger, especially continuous small-billet casting.Can crystallizer be the key that determine realize high speed.Molten steel is cast into crystallization
It after device, to solidify within a very short time, form uniform thickness green shell, and be safely transitioned into secondary cooling zone.
Currently, domestic square billet continuous casting crystallizer copper pipe mostly uses greatly parabola taper.But since slab is in meniscus
Neighbouring contraction is significantly greater than other positions, therefore parabola taper curve can not be bonded the solidification shrinkage of slab completely.
The taper Curve Design of copper pipe cannot only consider facial taper, and emphasis is also answered to consider corner taper Curve Design,
Even diagonal line taper ratio face taper is even more important.Slab corner is often due to two-dimensional contraction makes newborn green shell in the circumferential
Temperature and stress distributions it is uneven, so as to cause corner or drift angle portion mass defect, to improving, pulling rate is limited.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of power function crystallizer copper pipe,
For solving the problems, such as that slab quality is bad in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a kind of power function crystallizer copper pipe,
The power function crystallizer copper pipe is rectangular tube, and one end of the power function crystallizer copper pipe is that copper pipe is suitable for reading, institute
The other end for stating power function crystallizer copper pipe is mouth under copper pipe,
The inner cavity of the power function crystallizer copper pipe is gradually reduced and in power from the copper pipe is suitable for reading to mouth under the copper pipe
Function variation.
Optionally, the power function crystallizer copper pipe includes the first side wall and a pair of opposing of a pair of opposing
Second sidewall, rounded corner between adjacent the first side wall and second sidewall, and surround a rectangular configuration jointly.
Optionally, copper pipe lumen width suitable for reading is greater than the lumen width of mouth under the copper pipe, and the copper pipe is suitable for reading
Cavity length be greater than the copper pipe under mouth cavity length；
The half of the lumen width difference of mouth is the first side wall under copper pipe lumen width suitable for reading and the copper pipe
Facial taper δ1；
The half of the cavity length difference of mouth is second sidewall under copper pipe cavity length suitable for reading and the copper pipe
Facial taper δ2；
The half of the inner cavity catercorner length difference of mouth under the copper pipe inner cavity catercorner length and the copper pipe suitable for reading
For diagonal line taper ω；
It is h in the power function crystallizer copper inside pipe wall any position to copper pipe vertical height suitable for reading；
Wherein, a1> 0, m1< 0；
Wherein, a2> 0, m2< 0；
Wherein, a3> 0, m3< 0；
a1, m1, a2, m2, a3, m3It is constant.
Optionally, 1.1 δ1≤ω≤2.5δ2。
Optionally, the fillet size of copper pipe inner cavity suitable for reading is R1, and R1 is the 3%~16% of slab side length.
Optionally, copper pipe lumen width suitable for reading is l11, the cavity length of mouth is l under copper pipe12；
Wherein, l11Compare l12Big 2~3mm；
Optionally, copper pipe cavity length suitable for reading is l21, the cavity length of mouth is l under copper pipe22；
Wherein, l21Compare l22Big 2~3mm.
Optionally, l12And l22Size be 90~200mm.
Optionally, the power function crystallizer copper pipe from the copper pipe vertical height suitable for reading to mouth under copper pipe be 600~
1200mm。
As described above, power function crystallizer copper pipe of the invention, at least has the advantages that：
Copper pipe face taper and diagonal line taper use power function curve, more meet the solidification shrinkage rule of slab in the longitudinal direction
Rule guarantees that slab temperature and stress distributions are uniform, provide guarantee for stable high-speed continuous casting in the circumferential.
Detailed description of the invention
Fig. 1 is shown as the transverse sectional view of power function crystallizer copper pipe of the invention.
Fig. 2 is shown as the longitudinal cross-section schematic diagram of power function crystallizer copper pipe of the invention.
Component label instructions
1 copper pipe is suitable for reading
Mouth under 2 copper pipes
3 the first side walls
4 second sidewalls
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Fig. 1 is please referred to Fig. 2.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
In the range of art content can cover.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
In the present embodiment, Fig. 1 to Fig. 2 is please referred to, the present invention provides a kind of power function crystallizer copper pipe,
The power function crystallizer copper pipe is rectangular tube, and one end of the power function crystallizer copper pipe is copper pipe suitable for reading 1, institute
The other end for stating power function crystallizer copper pipe is mouth 2 under copper pipe,
The inner cavity of the power function crystallizer copper pipe from the copper pipe suitable for reading 1 to the copper pipe under mouth 2 be gradually reduced and be in
Power function variation.
The air gap that can avoid meniscus nearby casting blank shell and the hot face of copper pipe, guarantees the close of casting blank shell and the hot face of copper pipe
Contact, accelerates the growth of green shell.
In the present embodiment, Fig. 1 to Fig. 2 is please referred to, optionally, the power function crystallizer copper pipe, which includes that a pair is opposite, to be set
The second sidewall 4 of the first side wall 3 set and a pair of opposing, rounded corner between adjacent the first side wall 3 and second sidewall 4,
And a rectangular configuration is surrounded jointly.
In the present embodiment, Fig. 1 to Fig. 2 is please referred to, the lumen width of the copper pipe suitable for reading 1 is greater than mouth 2 under the copper pipe
Lumen width, the cavity length of the copper pipe suitable for reading 1 are greater than the cavity length of mouth 2 under the copper pipe；
The half of the lumen width difference of mouth 2 is the first side wall 3 under the lumen width and the copper pipe of the copper pipe suitable for reading 1
Facial taper δ1；
The half of the cavity length difference of mouth 2 is second sidewall 4 under the cavity length and the copper pipe of the copper pipe suitable for reading 1
Facial taper δ2；
The one of the inner cavity catercorner length difference of mouth 2 under the inner cavity catercorner length and the copper pipe of the copper pipe suitable for reading 1
Half is diagonal line taper ω；Catercorner length herein is the distance on the inside of the rounded corner of a pair of of opposition setting, i.e., in same cross
On section, the summation of circle center line connecting and two radiuss of corner between two each fillets.
In the present embodiment, in the power function crystallizer copper inside pipe wall any position to the vertical height of the copper pipe suitable for reading 1
Degree is h；
Wherein, a1> 0, m1< 0；
Wherein, a2> 0, m2< 0；
Wherein, a3> 0, m3< 0；
a1, m1, a2, m2, a3, m3It is constant.
In the present embodiment, the first side wall 3 and the facial taper of second sidewall 4 can as and also it is different, work as length and width
When equal, copper pipe is square pipe, and when length and width are unequal, copper pipe is rectangle pipe.
In the present embodiment, Fig. 1 to Fig. 2 is please referred to, optionally, 1.1 δ1≤ω≤2.5δ2。
Due to Two-Dimensional Heat, the shrinkage in corner is greater than face in slab corner, if diagonal line taper is equal to or small at this time
In facial taper, it will lead to the increase of corner air gap, generate corner or drift angle portion mass defect, or even have the risk of bleed-out.This hair
It is bright that facial taper is greater than using copper pipe diagonal line taper, the air gap of corner generation can be made up in this way, so that casting at any time
Base circumferentially can uniformly transfer heat, slab temperature and stress distributions are uniform.
In the present embodiment, Fig. 1 to Fig. 2 is please referred to, the fillet size of the inner cavity of copper pipe suitable for reading 1 is R1, and R1 is slab side length
3%~16%.Slab side length is the broadside of rectangle,
Optionally, the lumen width of copper pipe suitable for reading 1 is l11, the cavity length of mouth 2 is l under copper pipe12；
Wherein, l11Compare l12Big 2~3mm；
Slab quality is more preferable.
Optionally, the cavity length of copper pipe suitable for reading 1 is l21, the cavity length of mouth 2 is l under copper pipe22；
Wherein, l21Compare l22Big 2~3mm.
Slab quality is more preferable.
Optionally, l12And l22Size be 90~200mm.
Slab quality is more preferable.
Optionally, vertical height of the power function crystallizer copper pipe from copper pipe suitable for reading 1 to mouth 2 under copper pipe be 600~
1200mm。
In conclusion copper pipe face taper of the present invention and diagonal line taper use power function curve, more meet in the longitudinal direction
The solidification shrinkage rule of slab guarantees that slab temperature and stress distributions are uniform, provide for stable high-speed continuous casting in the circumferential
Guarantee, can avoid the air gap of casting blank shell and the hot face of copper pipe near meniscus, guarantees that casting blank shell and the close of the hot face of copper pipe connect
Touching, accelerates the growth of green shell, is greater than facial taper using copper pipe diagonal line taper, can make up the air gap of corner generation in this way,
So that at any time slab circumferentially can uniformly transfer heat, slab temperature and stress distributions are uniform.So the present invention effectively overcomes
Various shortcoming in the prior art and have high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (9)
1. a kind of power function crystallizer copper pipe, which is characterized in that
The power function crystallizer copper pipe is rectangular tube, and one end of the power function crystallizer copper pipe is that copper pipe is suitable for reading, the power
The other end of function crystallizer copper pipe is mouth under copper pipe,
The inner cavity of the power function crystallizer copper pipe is gradually reduced and in power function from the copper pipe is suitable for reading to mouth under the copper pipe
Variation.
2. power function crystallizer copper pipe according to claim 1, it is characterised in that：The power function crystallizer copper pipe packet
The first side wall of a pair of opposing and the second sidewall of a pair of opposing are included, between adjacent the first side wall and second sidewall
Rounded corner, and a rectangular configuration is surrounded jointly.
3. power function crystallizer copper pipe according to claim 2, it is characterised in that：
Copper pipe lumen width suitable for reading is greater than the lumen width of mouth under the copper pipe, and copper pipe cavity length suitable for reading is big
The cavity length of mouth under the copper pipe；
The half of the lumen width difference of mouth is the face of the first side wall under copper pipe lumen width suitable for reading and the copper pipe
Taper δ1；
The half of the cavity length difference of mouth is the face of second sidewall under copper pipe cavity length suitable for reading and the copper pipe
Taper δ2；
The half of the inner cavity catercorner length difference of mouth is pair under the copper pipe inner cavity catercorner length and the copper pipe suitable for reading
Linea angulata taper ω；
It is h in the power function crystallizer copper inside pipe wall any position to copper pipe vertical height suitable for reading；
Wherein, a1> 0, m1< 0；
Wherein, a2> 0, m2< 0；
Wherein, a3> 0, m3< 0；
a1, m1, a2, m2, a3, m3It is constant.
4. power function crystallizer copper pipe according to claim 3, it is characterised in that：1.1δ1≤ω≤2.5δ2。
5. power function crystallizer copper pipe according to claim 3, it is characterised in that：The fillet size of copper pipe inner cavity suitable for reading
It is the 3%~16% of slab side length for R1, R1.
6. power function crystallizer copper pipe according to claim 3, it is characterised in that：Copper pipe lumen width suitable for reading is l11,
The cavity length of mouth is l under copper pipe12；
Wherein, l11Compare l12Big 2~3mm.
7. -6 any power function crystallizer copper pipe according to claim 1, it is characterised in that：Copper pipe cavity length suitable for reading
For l21, the cavity length of mouth is l under copper pipe22；
Wherein, l21Compare l22Big 2~3mm.
8. power function crystallizer copper pipe according to claim 7, it is characterised in that：l12And l22Size be 90~200mm.
9. -6 any power function crystallizer copper pipe according to claim 1, it is characterised in that：The power function crystallizer copper
Pipe from the copper pipe vertical height suitable for reading to mouth under copper pipe be 600~1200mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101831.2A CN108907121B (en) | 2018-09-20 | 2018-09-20 | Copper pipe of power function crystallizer |
| PCT/CN2019/107057 WO2020057647A1 (en) | 2018-09-20 | 2019-09-20 | Copper tube of exponential function crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101831.2A CN108907121B (en) | 2018-09-20 | 2018-09-20 | Copper pipe of power function crystallizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108907121A true CN108907121A (en) | 2018-11-30 |
| CN108907121B CN108907121B (en) | 2024-03-01 |
Family
ID=64409669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811101831.2A Active CN108907121B (en) | 2018-09-20 | 2018-09-20 | Copper pipe of power function crystallizer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108907121B (en) |
| WO (1) | WO2020057647A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076303A (en) * | 2019-05-22 | 2019-08-02 | 中冶赛迪工程技术股份有限公司 | Change the method and variable convex crystallizer copper pipe of crystallizer copper pipe convexity |
| WO2020057647A1 (en) * | 2018-09-20 | 2020-03-26 | 中冶赛迪工程技术股份有限公司 | Copper tube of exponential function crystallizer |
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| CN2540242Y (en) * | 2002-05-23 | 2003-03-19 | 大连大山结晶器厂 | Continuous casting convex-concave crystallizer copper pipe |
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| CN108907121B (en) * | 2018-09-20 | 2024-03-01 | 中冶赛迪工程技术股份有限公司 | Copper pipe of power function crystallizer |
-
2018
- 2018-09-20 CN CN201811101831.2A patent/CN108907121B/en active Active
-
2019
- 2019-09-20 WO PCT/CN2019/107057 patent/WO2020057647A1/en active Application Filing
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020057647A1 (en) * | 2018-09-20 | 2020-03-26 | 中冶赛迪工程技术股份有限公司 | Copper tube of exponential function crystallizer |
| CN110076303A (en) * | 2019-05-22 | 2019-08-02 | 中冶赛迪工程技术股份有限公司 | Change the method and variable convex crystallizer copper pipe of crystallizer copper pipe convexity |
| CN110076303B (en) * | 2019-05-22 | 2024-05-03 | 中冶赛迪工程技术股份有限公司 | Method for changing convexity of crystallizer copper pipe and variable convexity crystallizer copper pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108907121B (en) | 2024-03-01 |
| WO2020057647A1 (en) | 2020-03-26 |
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Inventor after: Xiao Xuewen Inventor after: Lei Song Inventor after: Peng Xiaohua Inventor after: Chen Jiang Inventor after: Chen Nanfei Inventor after: Kong Yiwen Inventor before: Lei Song Inventor before: Peng Xiaohua Inventor before: Chen Jiang Inventor before: Chen Nanfei Inventor before: Kong Yiwen |
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