CN109465415A - Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end - Google Patents
Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end Download PDFInfo
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- CN109465415A CN109465415A CN201811497322.6A CN201811497322A CN109465415A CN 109465415 A CN109465415 A CN 109465415A CN 201811497322 A CN201811497322 A CN 201811497322A CN 109465415 A CN109465415 A CN 109465415A
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- nip rolls
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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
- B22D11/12—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
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Abstract
The present invention discloses that the present invention relates to fan-shaped section roll array structure fan-shaped section rolls under a kind of double single-point weight in continuous casting and solidifying end to be classified as Slab Caster horizontal segment roller array structure, including four pairs of nip rolls, each pair of nip rolls include upper backup roll and lower backing roll；First pair of nip rolls is arranged in inlet, and the second pair of nip rolls set gradually, third are to nip rolls, the 4th pair of nip rolls；First pair of nip rolls, third are the identical four drive part by part roller of size to nip rolls, and each metamerism roller roller diameter and merogenesis length are identical；Second pair of nip rolls, the 4th pair of nip rolls are the identical three segmentations driven voller of size, and each metamerism roller roller diameter and merogenesis length are identical；Each metamerism roller interlaced arrangement can depress nip rolls by latter with guaranteeing bearing block position slab also；Four pairs of nip rolls of roller column all use mandrel type to be segmented roll structure.
Description
Technical field
The present invention relates to continuous casting technical fields, especially suitable for fan-shaped under a kind of double single-point weight in continuous casting and solidifying end
Section roller array structure.
Background technique
With the fast development of manufacturing industry and science and technology, steel internal soundness 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 weight Reduction Technology thus.Continuous casting and solidifying
End weight Reduction Technology is to make full use of casting billet surface and the larger feature of the center portion temperature difference in casting blank solidification latter stage, to slab into
The pressure of row aximal deformation value, keeps drafts fully penetrated to slab center portion, so that it is loose or even thin to reach soldering solidification shrinkage cavity
Change 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.
However, the technique that Design of Roll Range is all difficult to meet the drafts of 15mm or more under current solidification end weight is wanted
It asks, as drafts increases, roller big powers degree and rigidity should also be greatly improved, to guarantee the peace of continuous casting billet internal soundness and equipment
Full property and reliability.If increasing roller column diameter on the basis of current solidification end weight lower roll column, also can achieve
The drafts of 15mm or more, but the size and weight of matched fan-shaped section will increase considerably, and thus will bring hanging for fan-shaped section
A series of new problems such as dress and maintenance.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide fan-shaped under a kind of double single-point weight in continuous casting and solidifying end
Section roller array structure meets the technique requirement of the drafts of 15mm or more in the case where guaranteeing continuous casting billet internal soundness with into one
Step improves continuous casting billet quality；Specific technical solution is as follows:
Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end, fan-shaped section roll are classified as Slab Caster
Horizontal segment roller array structure, including four pairs of nip rolls, respectively first pair of nip rolls, second pair of nip rolls, third press from both sides nip rolls and the 4th pair
Roller；
Each pair of nip rolls includes upper backup roll and lower backing roll；
First pair of nip rolls is arranged in inlet, and the second pair of nip rolls set gradually, third are to nip rolls, the 4th pair of nip rolls；
First pair of nip rolls, third are the identical four drive part by part roller of size to nip rolls；
Second pair of nip rolls, the 4th pair of nip rolls are the identical three segmentations driven voller of size；
First pair of nip rolls, third are identical to each metamerism roller roller diameter and merogenesis length of nip rolls；
Second pair of nip rolls, each metamerism roller roller diameter of the 4th pair of nip rolls and merogenesis length are identical；
Each metamerism roller interlaced arrangement can depress nip rolls by latter with guaranteeing bearing block position slab also；
Four pairs of nip rolls of roller column all use mandrel type to be segmented roll structure, in which: four pairs of nip rolls both ends edge bearings all use
The bearing of self-aligning roller bearing, intermediate position uses CARB annulus roller bearing；
Horizontal segment roller array structure includes inner arc roller column and outer arc roller column, and inner arc roller column and outer arc roller column are relatively arranged on inside casing
Between frame and outer framework, inner arc roller column are connected on inner frame, and outer arc roller column are connected on outer framework, first pair of nip rolls, third
Retarder and driving motor are connected with by shaft coupling to one end of nip rolls, the cylinder body of pressure cylinder is arranged on inner frame, pressure
The piston rod of cylinder is abutted with upper backup roll of the third to nip rolls.
Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end, preferred embodiment are first pair of folder
Roller, third have a driving motor to nip rolls up-down rollers, driving motor power W, 15≤W≤22kw, retarder reduction ratio i, 500≤
i≤800。
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end, preferred embodiment are fan-shaped section outlet and entrance
Two hydraulic clamping cylinders are oppositely arranged, inner frame is connect with outer framework by two pairs of hydraulic clamping cylinders.
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end, preferred embodiment is first pair of nip rolls, third
To roller diameter D1,460mm≤D1≤480mm of nip rolls, second pair of nip rolls, the 4th pair of nip rolls roller diameter D2,420mm≤D2≤
440mm。
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end, preferred embodiment are that roller column are able to bear green compact
Power >=18000kN, in which: first pair of nip rolls, third are able to bear green compact power F1,5000kN≤F1≤6500kN to nip rolls, the
Two pairs of nip rolls, the 4th pair of nip rolls single roller be able to bear green compact power F2,3000kN≤F2≤4000kN.
Beneficial effects of the present invention: technical solution of the present invention fan-shaped section roll is classified as Slab Caster horizontal segment roller column
Structure can effectively increase the strain rate in slab center portion region, conducive to the promotion of central pipe soldering and slab center portion consistency,
Guarantee slab continuous compression while continuing the drafts of 3~8mm of implementation using upper backup roll of the third to driven roller, prevents from casting
Base rebound deformation, it is ensured that do not rebound after slab drafts, and force casting blank shell contracts last, improve the inside and outside contraction speed of slab
It is loose caused by rate is inconsistent, while the intensity of roller column and reliability can guarantee that technique is smooth under mode under double single-point weight
Implement.
Detailed description of the invention
Fig. 1 is that roller of the present invention is listed in the top view on inner arc or outer arc；
Fig. 2 is operative condition of the present invention on continuous casting billet；
Fig. 3 is present invention installation situation on frame.
In figure, 1- first is to nip rolls, 2- second to nip rolls, 3- third to nip rolls, the 4th pair of nip rolls of 4-, 5- inner arc upper ledge
Frame, 6- outer arc lower frame, 7- pressure cylinder, 8- clamping cylinder.
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.
Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end, fan-shaped section roll are classified as Slab Caster
Horizontal segment roller array structure, including four pairs of nip rolls, 1, second pair of nip rolls 2 of respectively first pair of nip rolls, third are to nip rolls 3 and the 4th pair
Nip rolls 4；
Each pair of nip rolls includes upper backup roll and lower backing roll；
First pair of nip rolls 1 is arranged in inlet, and the second pair of nip rolls 2 set gradually, third are to nip rolls 3, the 4th pair of nip rolls 4；
First pair of nip rolls 1, third are the identical four drive part by part roller of size to nip rolls 3；
Second pair of nip rolls 2, the 4th pair of nip rolls 4 are the identical three segmentations driven voller of size；
First pair of nip rolls 1, third are identical to each metamerism roller roller diameter and merogenesis length of nip rolls 3；
Second pair of nip rolls 2, each metamerism roller roller diameter of the 4th pair of nip rolls 4 and merogenesis length are identical；
Each metamerism roller interlaced arrangement can depress nip rolls by latter with guaranteeing bearing block position slab also；
Four pairs of nip rolls of roller column all use mandrel type to be segmented roll structure, in which: four pairs of nip rolls both ends edge bearings all use
The bearing of self-aligning roller bearing, intermediate position uses CARB annulus roller bearing；
Horizontal segment roller array structure includes inner arc roller column and outer arc roller column, and inner arc roller column and outer arc roller column are relatively arranged on inside casing
Between frame 5 and outer framework 6, inner arc roller column are connected on inner frame 5, and outer arc roller column are connected on outer framework 6, first pair of nip rolls 1,
Third is connected with retarder and driving motor by shaft coupling to one end of nip rolls 3, and the cylinder body of pressure cylinder 7 is arranged in inner frame 5
On, the piston rod of pressure cylinder 7 is abutted with upper backup roll of the third to nip rolls 3.
Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end, preferred embodiment are first pair of folder
Roller 1, third have a driving motor to 3 up-down rollers of nip rolls, driving motor power W, 15≤W≤22kw, retarder reduction ratio i, and 500
≤i≤800。
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end, preferred embodiment are fan-shaped section outlet and entrance
Two hydraulic clamping cylinders 8 are oppositely arranged, inner frame 5 is connect with outer framework 6 by two pairs of hydraulic clamping cylinders.
A kind of double single-point weight soft reduction process of continuous casting billet solidifying end, preferred embodiment is first pair of nip rolls 1, third
To roller diameter D1,460mm≤D1≤480mm of nip rolls 3, second pair of nip rolls 2, the 4th pair of nip rolls 4 roller diameter D2,420mm≤D2≤
440mm。
Design parameter in this example includes: that first pair of nip rolls 1, third have driving motor to 3 up-down rollers of nip rolls, driving
Power of motor W, 15≤W≤22kw, retarder reduction ratio i, 500≤i≤800.First pair 1, third to the roller diameter D1 of 3 nip rolls,
460mm≤D1≤480mm, roller diameter D2,420mm≤D2≤440mm of second pair of nip rolls 2, the 4th pair of nip rolls 4.Roller column can be held
By green compact power >=18000kN, in which: first pair, third green compact power F1,5000kN≤F1≤6500kN are able to bear to nip rolls,
Second pair of nip rolls, the 4th pair of nip rolls single roller be able to bear green compact power F2,3000kN≤F2≤4000kN.
Using fan-shaped section roll array structure under the double single-point weight in the continuous casting and solidifying end in Coagulated hemothorax maximum reduction
>=15mm ensures effective implementation under solidification end weight.After weight Reduction Technology is implemented, slab consistency is substantially improved, it is right
100% is promoted to less than 20% by original without rolling under rear heap cool condition flaw detection qualification rate in the thick hot rolled plate of 50mm.
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 (5)
1. fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end, which is characterized in that fan-shaped section roll is classified as generous
Slab caster horizontal segment roller array structure, including four pairs of nip rolls, respectively first pair of nip rolls, second pair of nip rolls, third are to nip rolls
With the 4th pair of nip rolls；
Each pair of nip rolls includes upper backup roll and lower backing roll；
First pair of nip rolls is arranged in inlet, and the second pair of nip rolls set gradually, third are to nip rolls, the 4th pair of nip rolls；
First pair of nip rolls, third are the identical four drive part by part roller of size to nip rolls；
Second pair of nip rolls, the 4th pair of nip rolls are the identical three segmentations driven voller of size；
First pair of nip rolls, third are identical to each metamerism roller roller diameter and merogenesis length of nip rolls；
Second pair of nip rolls, each metamerism roller roller diameter of the 4th pair of nip rolls and merogenesis length are identical；
Each metamerism roller interlaced arrangement can depress nip rolls by latter with guaranteeing bearing block position slab also；
Four pairs of nip rolls of roller column all use mandrel type to be segmented roll structure, in which: four pairs of nip rolls both ends edge bearings all use aligning
The bearing of roller bearing, intermediate position uses CARB annulus roller bearing；
Horizontal segment roller array structure include inner arc roller column and outer arc roller column, inner arc roller column and outer arc roller column be relatively arranged on inner frame and
Between outer framework, inner arc roller column are connected on inner frame, and outer arc roller column are connected on outer framework, and first pair of nip rolls, third are to folder
One end of roller is connected with retarder and driving motor by shaft coupling, and the cylinder body of pressure cylinder is arranged on inner frame, pressure cylinder
Piston rod is abutted with upper backup roll of the third to nip rolls.
2. fan-shaped section roll array structure under the double single-point weight in a kind of continuous casting and solidifying end as described in claim 1, it is characterised in that:
First pair of nip rolls, third have driving motor, driving motor power W, 15≤W≤22kw to nip rolls up-down rollers, and retarder slows down
Than i, 500≤i≤800.
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: fan-shaped section goes out
Mouth and entrance are oppositely arranged two hydraulic clamping cylinders, and inner frame is connect with outer framework by two pairs of hydraulic clamping cylinders.
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: first pair of folder
Roller, third to roller diameter D1,460mm≤D1≤480mm of nip rolls, second pair of nip rolls, the 4th pair of nip rolls roller diameter D2,420mm≤
D2≤440mm。
5. 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: roller column can
Bear green compact power >=18000kN, in which: first pair of nip rolls, third to nip rolls be able to bear green compact power F1,5000kN≤F1≤
6500kN, second pair of nip rolls, the 4th pair of nip rolls single roller be able to bear green compact power F2,3000kN≤F2≤4000kN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811497322.6A CN109465415A (en) | 2018-12-07 | 2018-12-07 | Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811497322.6A CN109465415A (en) | 2018-12-07 | 2018-12-07 | Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end |
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| Publication Number | Publication Date |
|---|---|
| CN109465415A true CN109465415A (en) | 2019-03-15 |
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|---|---|---|---|
| CN201811497322.6A Pending CN109465415A (en) | 2018-12-07 | 2018-12-07 | Fan-shaped section roll array structure under a kind of double single-point weight in continuous casting and solidifying end |
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|---|---|---|---|---|
| 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 |
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| CN2801333Y (en) * | 2005-06-29 | 2006-08-02 | 西安重型机械研究所 | Casting milling fan-shaped section |
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| CN1318166C (en) * | 2002-08-08 | 2007-05-30 | Sms迪马格股份公司 | Method and device for dynamically resting roller segments that support and/or guide both sides of a cast bar made of metal, particularly steel |
| 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 |
| CN104399923A (en) * | 2014-11-18 | 2015-03-11 | 钢铁研究总院 | Method for producing ultra-thick plate continuous casting blank |
| 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 |
| CN206519555U (en) * | 2016-12-30 | 2017-09-26 | 中国重型机械研究院股份公司 | It is a kind of to improve the device of continuous casting slab quality |
| 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 |
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2018
- 2018-12-07 CN CN201811497322.6A patent/CN109465415A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1046450C (en) * | 1994-01-28 | 1999-11-17 | 曼内斯曼股份公司 | Guide system for continuously cast metal |
| 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 |
| CN1287932C (en) * | 2001-05-07 | 2006-12-06 | Sms迪马格股份公司 | Method and device for continuously casting ingots, slabs or thin slabs |
| CN1318166C (en) * | 2002-08-08 | 2007-05-30 | Sms迪马格股份公司 | Method and device for dynamically resting roller segments that support and/or guide both sides of a cast bar made of metal, particularly steel |
| CN2801333Y (en) * | 2005-06-29 | 2006-08-02 | 西安重型机械研究所 | Casting milling fan-shaped section |
| 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 |
| CN104399923A (en) * | 2014-11-18 | 2015-03-11 | 钢铁研究总院 | Method for producing ultra-thick plate continuous casting blank |
| 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 |
| CN206519555U (en) * | 2016-12-30 | 2017-09-26 | 中国重型机械研究院股份公司 | It is a kind of to improve the device of continuous casting slab quality |
| 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 |
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