CN109434056A - A kind of double single-point weight soft reduction process of continuous casting billet solidifying end - Google Patents
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end Download PDFInfo
- Publication number
- CN109434056A CN109434056A CN201811475985.8A CN201811475985A CN109434056A CN 109434056 A CN109434056 A CN 109434056A CN 201811475985 A CN201811475985 A CN 201811475985A CN 109434056 A CN109434056 A CN 109434056A
- Authority
- CN
- China
- Prior art keywords
- nip rolls
- pair
- slab
- fan
- reduction process
- 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.)
- Pending
Links
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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- 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
- B22D11/16—Controlling or regulating processes or operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The present invention discloses that the present invention relates to a kind of double single-points weight soft reduction process of continuous casting billet solidifying end, weight soft reduction process is completed using 2-5 fan-shaped section, fan-shaped section roll is classified as wide thickness plate continuous casting machine horizontal segment roller array structure, including four pairs of nip rolls, the first pair of nip rolls and third of fan-shaped section inlet setting are driven roller to nip rolls, and second pair of nip rolls and the 4th pair of nip rolls are driven voller；First pair of nip rolls and third to nip rolls by upper driven roller and lower drive roller sets at；Second pair of nip rolls and the 4th pair of nip rolls are made of upper backup roll and lower backing roll；Third connect the upper driven roller of nip rolls with hydraulic clamping cylinder, for guaranteeing slab continuous compression, prevents slab rebound deformation；Double single-points weight soft reduction process is come into effect to first fan-shaped section after the position solid rate fs=0.8 of slab center.
Description
Technical field
The present invention relates to continuous casting technical fields, especially suitable for work under a kind of double single-point weight of continuous casting billet solidifying end
Skill.
Background technique
With the fast development of manufacturing industry and science and technology, Inner Quality of Billet is put forward higher requirements, center porosity
It is the principal element for restricting continuous casting billet internal soundness with central pipe, proposes solidification end to further increase slab central dense degree
Hold weight Reduction Technology.Continuous casting and solidifying end weight Reduction Technology is to make full use of casting billet surface and center portion temperature in casting blank solidification latter stage
The larger feature of difference (slab center portion temperature is high, and central temperature is low), carries out aximal deformation value pressure to slab, drafts is enable to fill
Divide and penetrate into slab center portion, so that it is loose to reach soldering solidification shrinkage cavity, or even refines the technological effect of center portion austenite grain.
According to this theory, researcher both domestic and external proposes Design of Roll Range under a variety of weight.Such as: Chinese patent is (open
Number CN105689664A) propose single driving, 5 roller pair structures that inlet is large scale freedom roller.Chinese patent (Authorization Notice No.
CN204817965U 7 roller pair structures of single driving that intermediate calender rolls are large scale driven roller) are proposed.Chinese patent (publication number
CN106623834A) propose that free roll is identical as driven roller roller and intermediate calender rolls are that the single of driven roller drives 5 roller pair structures.It is Chinese special
Sharp (publication number CN104057049A) proposes 5 roller pair structures of single driving that intermediate calender rolls are large scale driven roller.
Design of Roll Range mostly uses greatly single driven roller under the weight that the studies above is proposed, roller columns also mostly 5~7 pairs it
Between, roller-type also mostly uses greatly three merogenesis or monoblock type to depress roller, and research has focused largely on equipment under weight and sets as a whole
Meter etc., and process portion be related to it is less, even the soft reduction process that is illustrated of patent CN102921914B its also only normal
Advise the drafts increase technique on the basis of slighter compress.However, roller big powers degree and rigidity should also mention significantly as drafts increases
Height, to guarantee the safety and reliability of continuous casting billet internal soundness and equipment.If on the basis that current slighter compress roller arranges
Upper increase casting roll diameter, although can equally reach drafts requirement, the size and weight of matched fan-shaped section will significantly increase
Add, thus will bring a series of new problems such as lifting and the maintenance of fan-shaped section.
Biggish casting blank deformation rate can preferably promote slab central dense degree, the i.e. higher slab center portion of slab strain rate
Consistency promoted effect be more obvious.Therefore, many researchers all use mode under single roll-in (CN102189102B,
CN1772415A etc.), i.e., it is realized using roughing mill form using a pair of larger roll real to the deformation of one time of casting billet surface
It applies.However, adopting, roughing mill form installation site is mostly fixed, and depressing position is fixed on some position of casting stream, works as solidification
When terminal changes with pulling rate, it cannot be guaranteed that the accurate pressure in Coagulated hemothorax position.And fan-shaped section form is on continuous surface
It is depressed, as long as Coagulated hemothorax within fan-shaped segment limit, can be acted under weight by pressure.On the other hand, roughing mill
The big pressure of single roller of form is unable to control the rebound deformation of slab after pressure, and due to the presence of slab internal and external temperature gradient,
During slab gradually cools down, the percent thermal shrinkage of slab center portion is significantly higher than casting billet surface, therefore slab center portion will continue to produce
Not familiar pine.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide works under a kind of double single-point weight of continuous casting billet solidifying end
Skill, specific technical solution are as follows:
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end, the heavy soft reduction process are completed using 2-5 fan-shaped section,
The fan-shaped section roll is classified as wide thickness plate continuous casting machine horizontal segment roller array structure, including four pairs of nip rolls, respectively first pair of nip rolls, second
To nip rolls, third to nip rolls and the 4th pair of nip rolls；
The first pair of nip rolls and third of fan-shaped section inlet setting are driven roller, second pair of nip rolls and the 4th pair of folder to nip rolls
Roller is driven voller；
First pair of nip rolls and third to nip rolls by upper driven roller and lower drive roller sets at；
Second pair of nip rolls and the 4th pair of nip rolls are made of upper backup roll and lower backing roll；
The third connect the upper driven roller of nip rolls with hydraulic clamping cylinder, for guaranteeing slab continuous compression, prevents from casting
Base rebound deformation；
Double single-points are come into effect to first fan-shaped section after the position solid rate fs=0.8 of slab center
Weight soft reduction process.
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end, preferred embodiment is that first pair of nip rolls is straight
Diameter is greater than second pair of nip rolls, third to nip rolls and the 4th pair of nip rolls, in order to effect under single-point weight, and to fan-shaped section inlet
The upper driven roller of first pair of nip rolls implements the single-point drafts of 3-20mm, for effectively increasing the judgement of speed change in slab center portion area
Rate, conducive to the promotion of central pipe soldering and slab center portion consistency.
A kind of double single-points weight soft reduction process of continuous casting billet solidifying end, preferred embodiment be first pair of nip rolls and
Third implements the single-point drafts of 5~10mm and 3~8mm to driven roller on nip rolls, props up on second pair of nip rolls and the 4th pair of nip rolls
Support roller continues green compact using 1.0~5.0mm/m reduction ratio.
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end, preferred embodiment is to connect suitable for wide and thick slab
Cast width 2200mm-3500mm in production process, the slab of thickness 300-600mm.
Beneficial effects of the present invention: technical solution of the present invention fan-shaped section roll line distributed architecture of the present invention includes four pairs of folders
Roller, each pair of nip rolls include upper backup roll and lower backing roll, and wherein the first of fan-shaped section inlet pair nip rolls and third are to folder
Roller is driven roller, remaining is driven voller.First pair of nip rolls diameter is greater than other three pairs of nip rolls diameters, in order to imitate under single-point weight
Fruit implements the single-point drafts of 3~20mm to driven roller on the fan-shaped section inlet, can effectively increase slab center portion region
Strain rate, conducive to the promotion of central pipe soldering and slab center portion consistency.Upper backup roll and hydraulic clip of the third to nip rolls
Tight cylinder is connected, and guarantees slab continuous compression, prevents slab rebound deformation；At the same time, the subsequent each upper support of the fan-shaped section
Roller continues green compact using 1.0~5.0mm/m reduction ratio, it is ensured that does not rebound after slab drafts, while casting blank shell being forced to continue
It shrinks, it is loose caused by contraction rate is inconsistent inside and outside improvement slab.
Detailed description of the invention
Fig. 1 is process flow chart under a kind of double single-point weight of continuous casting billet solidifying end.
In figure, 1- first is to nip rolls, 2- second to nip rolls, 3- third to the 4th pair of nip rolls, 4- nip rolls.
Specific embodiment
In order to keep the technical problem to be solved in the present invention, technical solution and advantage more clear below in conjunction with attached drawing and tool
Body embodiment is described in detail.
Circuit connection designed by the application is connection type conventional in the prior art, and related element model is equal
For conventional model in the prior art, connection structure not specified (NS) is all made of bolt mature in the prior art, rivet, weldering
The conventional means connection such as connect, paste, this will not be detailed here.
Embodiment 1
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end, the heavy soft reduction process are completed using 2-5 fan-shaped section,
The fan-shaped section roll is classified as wide thickness plate continuous casting machine horizontal segment roller array structure, including four pairs of nip rolls, respectively first pair of nip rolls 1,
Two pairs of nip rolls 2, third are to nip rolls 3 and the 4th pair of nip rolls 4；
The first pair of nip rolls 1 and third of fan-shaped section inlet setting are driven roller, second pair of nip rolls 2 and the 4th to nip rolls 3
It is driven voller to nip rolls 4；
First pair of nip rolls 1 and third to nip rolls 3 by upper driven roller and lower drive roller sets at；
Second pair of nip rolls 2 and the 4th pair of nip rolls 4 are made of upper backup roll and lower backing roll；
The third connect the upper driven roller of nip rolls 3 with hydraulic clamping cylinder, for guaranteeing slab continuous compression, prevents from casting
Base rebound deformation；
Double single-points are come into effect to first fan-shaped section after the position solid rate fs=0.8 of slab center
Weight soft reduction process.
First pair of nip rolls, 1 diameter is greater than second pair of nip rolls 2, third to nip rolls 3 and the 4th pair of nip rolls 4, in order to list
Effect under point weight, and implement the single-point drafts of 3-20mm to the upper driven roller of nip rolls to fan-shaped section inlet first, it is used for
The strain rate in slab center portion area is effectively increased, conducive to the promotion of central pipe soldering and slab center portion consistency.
First pair of nip rolls 1 and third implement the single-point drafts of 5~10mm and 3~8mm to driven roller on nip rolls 3,
Second pair of nip rolls 2 and the 4th pair of 4 upper backup roll of nip rolls use 1.0~5.0mm/m reduction ratio to continue green compact.
The width 2200mm-3500mm suitable for wide and thick slab continuous casting production process, the slab of thickness 300-600mm.
In this example, first fan-shaped section after the position solid rate fs=0.8 of slab center is come into effect under weight
Technique, slab center portion segregation-free molten steel flow, can be considered complete paste at this time, at this time for the first time using will not draw under single-point weight
It migrating strongly for solute segregation is played, i.e., will not induce center segregation defect, as Coagulated hemothorax moves back and second pair of nip rolls
Pressure maintaining can further increase drafts in the case where third is to single-point weight is again carried out at nip rolls, promoted slab central dense degree and
Homogeneity.
Specifically, the present embodiment selects continuous 3 fan-shaped sections to implement above-mentioned soft reduction process, i.e., to continuous casting billet initial position
1st and the double single-points pressures of the 3rd upper backup roll implementation of continuous 3 fan-shaped section entrances afterwards.
For example, as shown in Figure 1, using the double single-points weight soft reduction process of the present invention, certain wide thickness plate continuous casting machine cross dimensions 300mm
× 2300mm produces Q345b under the conditions of pulling rate 0.9m/min, and Coagulated hemothorax is located at 13# fan-shaped section end, i.e., to 14# fan-shaped section,
15# fan-shaped section and 16# fan-shaped section are depressed using double single-point weight soft reduction process provided by the invention, each fan-shaped section roll at this time
Seam value, relative reduction and absolute draft amount are as shown in table 1, and wherein relative reduction refers to relative to upper press control point
Drafts, absolute draft amount refer to the drafts of slab thickness before opposite depress.
The next segment roll gap value of the weight of the present invention of table 1, relative reduction and absolute draft amount, unit: mm
| Press control point | 13# goes out | 14# enters | 14# goes out | 15# enters | 15# goes out | 16# enters | 16# goes out |
| Gap values between rollers | 305 | 294 | 284 | 277 | 272 | 268 | 265 |
| Relative reduction | 0 | 11 | 10 | 7 | 5 | 4 | 3 |
| Absolute draft amount | 0 | 11 | 21 | 28 | 33 | 37 | 40 |
As shown in Figure 1, the double single-point weight soft reduction process of continuous casting billet solidifying end of the present invention, specific reduction method includes following step
It is rapid:
Since opening and pouring, as slab moves ahead along the continuous of throwing direction, solidification terminal is gradually moved back, and two-phase section gradually prolongs
It stretches.When casting blank solidification forward position meets pressure condition, two hydraulic clamping cylinders of fan-shaped section outlet start to push.In the process of pushing
In, the outer framework of fan-shaped section is fixed on foundation beam, it remains unchanged, and due to the pressure of fan-shaped section outlet hydraulic clamping cylinder
Under, so that fan-shaped section inner frame and outer framework is upwardly formed taper in throwing side, i.e. fan-shaped section outlet roll gap is less than fan-shaped section entrance
Roll gap applies pressure to the clamping cylinder of inlet two and completes first to complete the squeezing action to slab by roll gap taper
Single-point pressure to driven roller, then continues the pressure cylinder on nip rolls by third to implement single-point pressure to slab.With solidifying
Gu forward position continues to move ahead, the hydraulic clamping cylinder of next fan-shaped section also starts servo-actuated pushing, until solidification end position is stablized,
Multiple fan-shaped sections put into press function.
To being further described under second of single-point weight.In pulling rate change procedure, depressing position should be with solidification
The Forward of terminal position moves back, and in the process, fan-shaped section is instructed according to the gap preset received, passes through the pressure to pressure cylinder
Down and adjustment is lifted, completes the adjustment of roll gap.The technological parameters such as drafts, pressure range, by different pouring condition and finished product
It is required that determining.At the same time, each driven voller upper backup roll of the fan-shaped section continues green compact using 1.0~5.0mm/m reduction ratio, really
It does not rebound after protecting slab drafts, while forcing casting blank shell contracts last, it is inconsistent and lead to improve contraction rate inside and outside slab
What is caused is loose.
Using double single-points weight soft reduction process in Coagulated hemothorax maximum reduction >=15mm, double single-point weight Reduction Technologies
After implementation, slab consistency is substantially improved, for 50mm thick hot rolled plate without rolling under rear heap cool condition flaw detection qualification rate by original
That comes is promoted to 99.8% less than 20%.
Embodiment described above is merely preferred embodiments of the present invention, and protection scope of the present invention is not limited to
This, anyone skilled in the art within the technical scope of the present disclosure, the technical side that can be become apparent to
The simple change or equivalence replacement of case, all belong to the scope of protection of the present invention within.
Claims (4)
1. a kind of double single-point weight soft reduction process of continuous casting billet solidifying end, which is characterized in that the heavy soft reduction process is using 2-5 fan
Shape section is completed, and the fan-shaped section roll is classified as wide thickness plate continuous casting machine horizontal segment roller array structure, including four pairs of nip rolls, and respectively first pair
Nip rolls, second pair of nip rolls, third are to nip rolls and the 4th pair of nip rolls；
The first pair of nip rolls and third of fan-shaped section inlet setting are driven roller to nip rolls, and second pair of nip rolls and the 4th pair of nip rolls are
Driven voller；
First pair of nip rolls and third to nip rolls by upper driven roller and lower drive roller sets at；
Second pair of nip rolls and the 4th pair of nip rolls are made of upper backup roll and lower backing roll；
The third connect the upper driven roller of nip rolls with hydraulic clamping cylinder, for guaranteeing slab continuous compression, prevents slab anti-
Bullet deformation；
Double single-point weight are come into effect to first fan-shaped section after the position solid rate fs=0.8 of slab center
Lower technique.
2. the double single-point weight soft reduction process of a kind of continuous casting billet solidifying end as described in claim 1, it is characterised in that: described first
Second pair of nip rolls, third are greater than to nip rolls and the 4th pair of nip rolls, in order to effect under single-point weight, and to sector to nip rolls diameter
Section inlet first implements the single-point drafts of 3-20mm to the upper driven roller of nip rolls, for effectively increasing slab center portion area
Strain rate, conducive to the promotion of central pipe soldering and slab center portion consistency.
3. the double single-point weight soft reduction process of a kind of continuous casting billet solidifying end as described in claim 1, it is characterised in that: described first
Implement the single-point drafts of 5~10mm and 3~8mm to driven roller on nip rolls to nip rolls and third, second pair of nip rolls and the 4th pair
Nip rolls upper backup roll continues green compact using 1.0~5.0mm/m reduction ratio.
4. the double single-point weight soft reduction process of a kind of continuous casting billet solidifying end as described in claim 1, it is characterised in that: be suitable for width
Width 2200mm-3500mm in slab CC machine production process, the slab of thickness 300-600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475985.8A CN109434056A (en) | 2018-12-05 | 2018-12-05 | A kind of double single-point weight soft reduction process of continuous casting billet solidifying end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475985.8A CN109434056A (en) | 2018-12-05 | 2018-12-05 | A kind of double single-point weight soft reduction process of continuous casting billet solidifying end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109434056A true CN109434056A (en) | 2019-03-08 |
Family
ID=65556908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811475985.8A Pending CN109434056A (en) | 2018-12-05 | 2018-12-05 | A kind of double single-point weight soft reduction process of continuous casting billet solidifying end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109434056A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181016A (en) * | 2019-05-27 | 2019-08-30 | 北京首钢国际工程技术有限公司 | A kind of big pressure casting and rolling machine of the box-like heavy slab of 2+8 roller group |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107756A (en) * | 1982-12-08 | 1984-06-22 | Kawasaki Steel Corp | Light rolling down device of continuous casting billet |
| JPS62179856A (en) * | 1986-02-04 | 1987-08-07 | Sumitomo Metal Ind Ltd | Continuous casting method and its roller apron |
| CN1039370A (en) * | 1988-07-04 | 1990-02-07 | 曼内斯曼股份公司 | The direct casting method of the slab that production is thinner than as-cast condition |
| EP0908256A1 (en) * | 1997-10-11 | 1999-04-14 | Sms Schloemann-Siemag Aktiengesellschaft | Process and installation for the production of slabs in a continuous casting machine |
| JP2000312956A (en) * | 1999-04-27 | 2000-11-14 | Hitachi Zosen Corp | Roll segment device of continuous casting equipment, and dividing jig of roll segment device for continuous casting equipment |
| CN101035639A (en) * | 2004-10-06 | 2007-09-12 | Sms迪马格股份公司 | Method and roll segment for determining core solidification and/or the liquid crater tip in the continuous casting of metals, particularly steel materials |
| CN101579727A (en) * | 2008-05-16 | 2009-11-18 | 西门子Vai金属技术两合公司 | A method of holding a dummy bar in a continuous casting device and a continuous casting device having the same |
| CN104057049A (en) * | 2014-07-09 | 2014-09-24 | 北京科技大学 | Continuous casting machine sector section for deep pressing of continuous casting blank solidification tail end and deep pressing method of continuous casting machine sector section |
| CN104858383A (en) * | 2015-06-10 | 2015-08-26 | 中冶连铸技术工程有限责任公司 | Slab pressing segment |
| CN105689664A (en) * | 2014-11-27 | 2016-06-22 | 宝钢工程技术集团有限公司 | Heavy reduction sector section used for overcoming plate blank looseness and shrinkage defects and application method thereof |
| CN106552912A (en) * | 2016-11-28 | 2017-04-05 | 东北大学 | The compact fan-shaped section of enhancement mode is used under a kind of weight of continuous casting and solidifying end |
| CN106623834A (en) * | 2016-12-22 | 2017-05-10 | 中冶京诚工程技术有限公司 | Fan-shaped section device under heavy pressure, of continuous casting slab |
| CN106735026A (en) * | 2016-12-09 | 2017-05-31 | 东北大学 | A kind of continuous casting billet solidifying end single-point and continuous weight soft reduction process |
| CN108788041A (en) * | 2018-07-03 | 2018-11-13 | 东北大学 | Fan-shaped section roll array structure and application method are used under a kind of weight of continuous casting and solidifying end |
-
2018
- 2018-12-05 CN CN201811475985.8A patent/CN109434056A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107756A (en) * | 1982-12-08 | 1984-06-22 | Kawasaki Steel Corp | Light rolling down device of continuous casting billet |
| JPS62179856A (en) * | 1986-02-04 | 1987-08-07 | Sumitomo Metal Ind Ltd | Continuous casting method and its roller apron |
| CN1039370A (en) * | 1988-07-04 | 1990-02-07 | 曼内斯曼股份公司 | The direct casting method of the slab that production is thinner than as-cast condition |
| EP0908256A1 (en) * | 1997-10-11 | 1999-04-14 | Sms Schloemann-Siemag Aktiengesellschaft | Process and installation for the production of slabs in a continuous casting machine |
| JP2000312956A (en) * | 1999-04-27 | 2000-11-14 | Hitachi Zosen Corp | Roll segment device of continuous casting equipment, and dividing jig of roll segment device for continuous casting equipment |
| CN101035639A (en) * | 2004-10-06 | 2007-09-12 | Sms迪马格股份公司 | Method and roll segment for determining core solidification and/or the liquid crater tip in the continuous casting of metals, particularly steel materials |
| CN101579727A (en) * | 2008-05-16 | 2009-11-18 | 西门子Vai金属技术两合公司 | A method of holding a dummy bar in a continuous casting device and a continuous casting device having the same |
| CN104057049A (en) * | 2014-07-09 | 2014-09-24 | 北京科技大学 | Continuous casting machine sector section for deep pressing of continuous casting blank solidification tail end and deep pressing method of continuous casting machine sector section |
| CN105689664A (en) * | 2014-11-27 | 2016-06-22 | 宝钢工程技术集团有限公司 | Heavy reduction sector section used for overcoming plate blank looseness and shrinkage defects and application method thereof |
| CN104858383A (en) * | 2015-06-10 | 2015-08-26 | 中冶连铸技术工程有限责任公司 | Slab pressing segment |
| CN106552912A (en) * | 2016-11-28 | 2017-04-05 | 东北大学 | The compact fan-shaped section of enhancement mode is used under a kind of weight of continuous casting and solidifying end |
| CN106735026A (en) * | 2016-12-09 | 2017-05-31 | 东北大学 | A kind of continuous casting billet solidifying end single-point and continuous weight soft reduction process |
| CN106623834A (en) * | 2016-12-22 | 2017-05-10 | 中冶京诚工程技术有限公司 | Fan-shaped section device under heavy pressure, of continuous casting slab |
| CN108788041A (en) * | 2018-07-03 | 2018-11-13 | 东北大学 | Fan-shaped section roll array structure and application method are used under a kind of weight of continuous casting and solidifying end |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181016A (en) * | 2019-05-27 | 2019-08-30 | 北京首钢国际工程技术有限公司 | A kind of big pressure casting and rolling machine of the box-like heavy slab of 2+8 roller group |
| CN110181016B (en) * | 2019-05-27 | 2024-03-29 | 北京首钢国际工程技术有限公司 | 2+8 roller combined thick plate blank large-pressure casting and rolling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104057049B (en) | The continuous casting machine fan-shaped segment of the big pressure of continuous casting billet solidifying end and big reduction method thereof | |
| CN106001476B (en) | A kind of method under the continuous dynamic weight of continuous casting billet two benches | |
| CN104399924B (en) | A kind of withdrawal straightening machine gradual curvature convex roller and using method for bloom continuous casting | |
| US11123780B2 (en) | Device and method for achieving core part press-down technology in continuous casting round billet solidification process | |
| CN105689664B (en) | Fan-shaped section and its application method under weight for improving the loose shrinkage cavity defect of slab | |
| CN103111464B (en) | Manufacturing method of super-thick steel plate | |
| KR101623671B1 (en) | Cast piece reduction device | |
| CN107552750B (en) | Multi-stream continuous casting machine capable of producing extra-large section special-shaped blank or plate blank and production method | |
| CN105108096A (en) | Method for determining dynamic soft reduction amount during bloom continuous casting of heavy rail steel | |
| CN106552912A (en) | The compact fan-shaped section of enhancement mode is used under a kind of weight of continuous casting and solidifying end | |
| CN104858383A (en) | Slab pressing segment | |
| CN106735026A (en) | A kind of continuous casting billet solidifying end single-point and continuous weight soft reduction process | |
| CN109434056A (en) | A kind of double single-point weight soft reduction process of continuous casting billet solidifying end | |
| CN108788041B (en) | Sector section roller row structure for continuous casting solidification tail end heavy pressing and using method | |
| US3606785A (en) | Apparatus and method for eliminating or reducing the internal flaws of semifinished products,especially at cast ingots,blocks,blooms,slabs,billets or the like | |
| DE202015001868U1 (en) | Back-up roll device for performing a corner deformation on a chamfered continuous casting slab | |
| CN109732049A (en) | A kind of vertical throwing conticaster of small billet and soft reduction process device | |
| CN115344957A (en) | Design method of gradually-changed curvature curved roller | |
| CN104308108A (en) | Straightening machine and method utilizing straightening machine reduce clamping deformation of big round billet | |
| CN110181016B (en) | 2+8 roller combined thick plate blank large-pressure casting and rolling machine | |
| CN210547961U (en) | 2+8 roller combined thick plate blank large-reduction casting and rolling machine | |
| CN105364041A (en) | Densely arranged dual-roll continuous withdrawal and straightening device and withdrawal and straightening equipment | |
| CN104550802A (en) | Large-rolling reduction cast flow guide device of continuous casting machine | |
| CN109465415A (en) | Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end | |
| CN204413086U (en) | Conticaster heavy reduction casting flow guide device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190308 |
|
| RJ01 | Rejection of invention patent application after publication |