CN110449558B - Casting roller for high-speed casting and rolling machine - Google Patents
Casting roller for high-speed casting and rolling machine Download PDFInfo
- Publication number
- CN110449558B CN110449558B CN201910809148.2A CN201910809148A CN110449558B CN 110449558 B CN110449558 B CN 110449558B CN 201910809148 A CN201910809148 A CN 201910809148A CN 110449558 B CN110449558 B CN 110449558B
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- roller
- casting
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- roll
- cooling water
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- 238000005266 casting Methods 0.000 title claims abstract description 80
- 238000005096 rolling process Methods 0.000 title claims abstract description 29
- 239000000498 cooling water Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000000712 assembly Effects 0.000 claims abstract description 3
- 238000000429 assembly Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 24
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002344 surface layer Substances 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
-
- 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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
- B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a casting roller for a high-speed casting and rolling machine, which belongs to the technical field of casting and rolling and comprises a roller core, a roller sleeve sleeved outside the roller core and sealing assemblies arranged at two axial ends of the roller core and used for sealing the roller core and the roller sleeve; the contact surface of the roller core and the roller sleeve is tightly matched; the outer wall of the roller core is provided with a surface groove; at least two cooling water channels are arranged along the axial direction of the roller core and are used for water inflow and water return respectively; radial through holes for communicating the cooling water channel and the surface groove are arranged along the radial direction of the roller core. After the casting roller cores are combined into the left-right opposite symmetrical roller groups, the casting roller cores can be suitable for the requirements of high-speed casting and rolling production casting machines for high-strength aluminum alloy thin strips, can also be suitable for the requirements of medium-low-speed thick-strip casting and rolling production casting machines, are particularly suitable for the requirements of high-speed high-alloy thin-strip casting and rolling production casting machines, have excellent control capability, and can meet the requirements of high-speed casting and rolling production.
Description
Technical Field
The invention belongs to production equipment in the technical field of nonferrous metal casting and rolling production, and particularly relates to a key component of a roller casting and rolling machine used in thin strip production, in particular to a casting and rolling roller of a high-speed casting and rolling machine suitable for high-strength alloy aluminum thin strip production.
Background
With the technical progress of the metallurgical industry, in the prior art, no matter in the production of thin strip steel or in the production of aluminum strip casting and rolling, a roll casting and rolling production process is adopted to produce the thin strip, namely molten aluminum liquid or molten steel is directly poured between a pair of casting rollers which rotate relatively, the molten aluminum liquid or molten steel is converted into solid under the action of rotary cooling of the rollers, and the solid is rolled into a plate strip with the required thickness. The pair of casting rolls, also called as crystallization rolls, has a preset roll gap of 1.5-6 mm between the two rolls, the linear speed of the conventional casting rolls is 0.8-2 m/min, the inside of the casting rolls is provided with a water circulation structure, and the temperature of water in the casting rolls is kept at not more than 40 ℃ during operation, so that the casting rolls have a certain cooling capacity, and the molten liquid can be rapidly cooled between the casting rolls. And casting and rolling are completed under the rotation of casting and rolling, and the strip is continuously rolled out of the roll gap to form the plate strip.
However, due to the defects that the casting roller which is commonly used at present is of an integral structure and an internal water tank structure, the cooling efficiency is low, the casting speed is low, the requirements of modern high-speed production are difficult to meet, and the maintenance and replacement are complex. Therefore, in order to solve the problem, improve the production speed of casting and rolling, improve the production efficiency, reduce the requirement of production cost, and improve the casting and rolling speed to 40-60 m/min, the equipment for solving the technical problem is innovatively provided.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a casting roll for a high-speed casting machine for solving the problems of low cooling efficiency, slow casting speed, troublesome operation, inconvenient maintenance or weak deformation resistance, or inability to realize rapid replacement of the casting roll, extremely low production efficiency, and the like in the prior art.
To achieve the above and other objects, the present invention provides a casting roll for a high-speed casting machine, which provides a casting roll with high cooling capacity, high cooling heat exchange efficiency, quick exchange efficiency, and enhanced casting capacity of the casting machine, and provides excellent plate shape quality control capability for high-speed casting, thereby satisfying a measure for high-quality production.
The invention is realized by the following technical scheme:
the invention provides a casting roller for a high-speed casting machine, which comprises a roller core, a roller sleeve sleeved outside the roller core and sealing assemblies arranged at two axial ends of the roller core and used for sealing the roller core and the roller sleeve; the contact surface of the roller core and the roller sleeve is tightly matched; the outer wall of the roller core is provided with a surface groove; at least two cooling water channels are arranged along the axial direction of the roller core and are used for water inflow and water return respectively; radial through holes for communicating the cooling water channel and the surface groove are arranged along the radial direction of the roller core.
Further, sealing component comprises snap ring and sealing ring, and the sealing ring is inlayed in roller core outer wall or/and roller shell inner wall, and the snap ring supports in the sealing ring, and the snap ring passes through the screw that sets up on roller core and roller shell with both fixed connection.
Further, the sealing ring is a pressure-resistant and high-temperature-resistant J-shaped framework structure or a high-temperature-resistant 0-shaped structure.
Further, the cross section structure of the cooling water channel is one of a circle, an ellipse and a semicircle.
Further, the number and diameter of the backwater cooling water channels are greater than or equal to those of the inflow cooling water channels.
Further, grooves corresponding to the grooves on the surface of the shaft core are formed in the inner wall of the roller sleeve.
Further, the size and the number of the surface grooves of the roller core meet the following mathematical rule:
Wherein: x is the width of the surface groove, mm; delta is the depth of the surface groove, mm; y is the flange width between two adjacent surface grooves, mm; l is the width of the axial roller surface of the roller shaft and is mm; n is the number of surface grooves; m is the number of flanges between two adjacent surface grooves.
Further, the geometric dimensions of the cooling water channel meet the following mathematical rules:
d2v＝k*(L*10-3)
Wherein: d is the diameter of the cooling water channel, m; v is the water flow rate in the cooling water channel, m/s; k is a variable parameter, m 2/s and the value range is 0.045-0.01; l is the width of the axial roller surface of the roller shaft and is mm.
Further, the water pressure in the cooling water channel is 0.3-1.2 Mpa.
Further, the device also comprises a water-cooling rotating device arranged on the non-transmission side of the roller core, wherein the water-cooling rotating device mainly comprises a shaft core fixedly arranged with the roller core and a shaft sleeve rotatably sleeved outside the shaft core, a water-cooling channel corresponding to the cooling water channel of the roller core is arranged in the shaft core, and a water nozzle communicated with the water-cooling channel is arranged on the shaft sleeve.
The invention has the advantages that: the invention adopts the casting roller sleeve which combines a certain physical property rule and a mathematical property, can effectively and rapidly meet the production characteristics, achieves the comprehensive performance of exceeding rapid cooling and rolling according to the production variety, and can be rapidly removed and replaced so as to facilitate maintenance; the method can greatly improve the casting and rolling production efficiency and ensure the quality of casting and rolling varieties while ensuring the physical characteristics of casting and rolling.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view showing a novel structure of a casting roll provided in an embodiment of the present invention;
FIG. 2 is a view showing a cross section of the casting rolls J-J of FIG. 1 provided for an embodiment of the present invention;
Description of element numbers: 1. the roller comprises a roller core, 2, a roller sleeve, 3, a surface groove, 4, radial through holes, 5, a clamping ring, 6, a sealing ring, 7, a water cooling rotating device, 8, a cooling water channel, 9 and a screw.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
As shown in fig. 1 to 2, the casting roll for the high-speed casting machine in this embodiment includes at least: the roller comprises a roller core 1, a roller sleeve 2, a surface groove 3, a radial through hole 4, a clamping ring 5, a sealing ring 6, a water-cooling rotating device 7, a cooling water channel 8 and a screw 9. Wherein the roller cores 1 are horizontally arranged on the fixing device and are matched in groups in the matching device; the roller sleeve 2 is arranged on the roller core 1, and the inner surface of the roller sleeve 2 is tightly matched with the outer surface of the roller core 1; the surface groove 3 is formed on the outer surface of the roller core 1; the radial through holes 4 and the cooling water channels 8 are formed in the roller core 1, and the surface grooves are connected with the cooling water channels through the radial through holes; the sealing ring 6 is arranged between the roller core 1 and the roller sleeve 2 and is inlaid on the mutual wall; the clamping ring 5 is arranged on the roller core 1 and the roller sleeve 2 through a screw 9, so that the roller core and the roller sleeve form a fixed integral structure and are tightly pressed on the sealing ring 6 to be used for resisting the sealing ring; the water cooling rotating device is installed on the non-transmission side of the roller core 1 and is communicated with the cooling water channel, and in particular, the water cooling rotating device mainly comprises a shaft core (not shown) fixedly installed with the roller core and a shaft sleeve (not marked) rotatably sleeved outside the shaft core, a water cooling channel (not shown) corresponding to the cooling water channel of the roller core is arranged in the shaft core, a water nozzle (not marked) communicated with the water cooling channel is arranged on the shaft sleeve, and the structure is described in detail in another patent of the same-day application of the application and is not repeated.
In this embodiment, the seal ring is a pressure-resistant and high-temperature-resistant "J" skeleton structure or a high-temperature-resistant "O" type structure.
In this embodiment, the cross-section structure of the cooling water channel is one of a circle, an ellipse, and a semicircle; and the number and the diameter of the backwater cooling water channels are larger than or equal to those of the inflow cooling water channels. If two cooling water channels are adopted, namely a water inlet cooling water channel and a water return cooling water channel, the cross section of the two cooling water channels can adopt a semicircular structure; for example, three cooling water channels, namely a water inlet cooling water channel and two water return cooling water channels, are adopted, and the section of the water inlet cooling water channel and the section of the water return cooling water channel can adopt an elliptic structure; if four cooling water channels are adopted, namely two water inlet cooling water channels and two water return cooling water channels, the cross section of the water inlet cooling water channels and the water return cooling water channels can adopt a circular structure; thus, the quick return of the cooling water in the casting roller is facilitated.
In this embodiment, the inner wall of the roll sleeve 2 is provided with a groove (not labeled) corresponding to the surface groove 3 of the shaft core 1, so that the cooling water space between the roll sleeve and the roll core can be increased, and the casting and rolling can be conveniently cooled.
In this embodiment, the roller core 1 is installed in the mating device to form a symmetric roller system with opposite sides, and the symmetric roller system can be adjusted according to the production requirement.
In this embodiment, the surface grooves 3 are formed on the surface layer of the roll core, and the dimensions and the number of grooves satisfy the physical properties mathematical law, and the described mathematical law equation that must be satisfied is:
Wherein: x is the width of the surface groove, mm; delta is the depth of the surface groove, mm; y is the flange width between two adjacent surface grooves, mm; l is the width of the axial roller surface of the roller shaft and is mm; n is the number of surface grooves; m is the number of flanges between two adjacent surface grooves.
In this embodiment, the cooling water channels 8 are formed in the central layer of the roller core, and the opening of the dimensions of the cooling water channels should satisfy the physical distribution rule, and the cooling water channels are respectively led to the water cooling rotating device 7, and the inlet and outlet water channels of the physical distribution rule should satisfy the following equation:
d2v＝k*(L*10-3)
Wherein: d is the diameter of the cooling water channel, m; v is the water flow rate in the cooling water channel, m/s; k is a variable parameter, m 2/s and the value range is 0.045-0.01; l is the width of the axial roller surface of the roller shaft and is mm.
The casting roller for the high-speed casting and rolling machine can be suitable for the requirements of high-speed casting and rolling production casting machines of high-strength aluminum alloy thin strips and the requirements of medium-low-speed thick strip casting and rolling production casting machines according to the physical property requirements, and particularly can be suitable for the requirements of high-speed casting and rolling production casting machines of high-strength aluminum alloy thin strips.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. The present invention is intended to include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. The casting roller for the high-speed casting and rolling machine is characterized by comprising a roller core (1), a roller sleeve (2) sleeved outside the roller core and sealing assemblies which are arranged at two axial ends of the roller core and are used for sealing the roller core and the roller sleeve; the contact surface of the roller core and the roller sleeve is tightly matched; the outer wall of the roller core is provided with a surface groove (3); at least two cooling water channels (8) are arranged along the axial direction of the roller core and are respectively used for water inlet and water return; radial through holes (4) for communicating the cooling water channels and the surface grooves are formed along the radial direction of the roller core;
the size and the number of the surface grooves of the roller core meet the following mathematical rules:
Wherein: x is the width of the surface groove, mm; delta is the depth of the surface groove, mm; y is the flange width between two adjacent surface grooves, mm; l is the width of the axial roller surface of the roller shaft and is mm; n is the number of surface grooves; m is the number of flanges between two adjacent surface grooves;
the geometric dimensions of the cooling water channel meet the following mathematical rules:
Wherein: d is the diameter of the cooling water channel, m; v is the water flow rate in the cooling water channel, m/s; k is a variable parameter, m 2/s and the value range is 0.045-0.01; l is the width of the axial roller surface of the roller shaft and is mm.
2. Casting roll for high-speed casting mill according to claim 1, characterized in that the sealing assembly consists of a snap ring (5) and a sealing ring (6), the sealing ring is embedded in the outer wall of the roll core or/and the inner wall of the roll sleeve, the snap ring is abutted against the sealing ring, and the snap ring is fixedly connected with the roll core and the roll sleeve through a screw (9) arranged on the roll core and the roll sleeve.
3. Casting roll for a high-speed casting machine according to claim 2, characterized in that the sealing ring is a pressure-resistant and high-temperature-resistant "J" skeleton structure or a high-temperature-resistant "O" type structure.
4. The casting roll for a high-speed casting machine according to claim 1, wherein the cross-sectional structure of the cooling water channel is one of a circle, an ellipse, and a semicircle.
5. The casting roll for a high-speed casting machine according to claim 1, wherein the number and diameter of the backwater cooling channels are equal to or greater than the number and diameter of the inflow cooling channels.
6. Casting roll for a high-speed casting machine according to claim 1, characterized in that the inner wall of the roll shell is provided with grooves corresponding to the surface grooves of the shaft core.
7. The casting roll for a high-speed casting machine according to claim 1, wherein the hydraulic pressure in the cooling water channel is 0.3 to 1.2Mpa.
8. Casting roll for high-speed casting and rolling machine according to any one of claims 1 to 7, characterized in that it further comprises a water-cooling rotary device (7) mounted on the non-transmission side of the roll core, said water-cooling rotary device mainly comprising a shaft core fixedly mounted with the roll core, a shaft sleeve rotatably sleeved outside the shaft core, a water-cooling channel corresponding to the cooling water channel of the roll core being provided in the shaft core, and a water nozzle communicating with the water-cooling channel being provided on the shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910809148.2A CN110449558B (en) | 2019-08-29 | 2019-08-29 | Casting roller for high-speed casting and rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910809148.2A CN110449558B (en) | 2019-08-29 | 2019-08-29 | Casting roller for high-speed casting and rolling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110449558A CN110449558A (en) | 2019-11-15 |
| CN110449558B true CN110449558B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910809148.2A Active CN110449558B (en) | 2019-08-29 | 2019-08-29 | Casting roller for high-speed casting and rolling machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434302B (en) * | 2019-08-29 | 2024-05-14 | 中冶赛迪工程技术股份有限公司 | Water-cooling rotating device for aluminum strip roller type casting roller |
| CN111299527A (en) * | 2019-12-12 | 2020-06-19 | 云南大泽电极科技股份有限公司 | Condensation crystallization technology for cast-rolled lead alloy plate strip |
| CN112872041A (en) * | 2020-12-24 | 2021-06-01 | 东台市宏凯不锈钢有限公司 | Manganese alloy roller and manufacturing method thereof |
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|---|---|---|---|---|
| EP1122004A1 (en) * | 2000-02-01 | 2001-08-08 | Officine Meccaniche Bruno Presezzi S.r.l. | Continuous casting roll |
| CN1478003A (en) * | 2000-11-29 | 2004-02-25 | Sms迪马格股份公司 | Casting roll for casting and/or supporting continuous casting billet, in particular for two-roll continuous casting machine |
| CN103611899A (en) * | 2013-12-12 | 2014-03-05 | 东北大学 | Crystallization roll for strip casting and with evenly-cooled roll surface |
| CN104368605A (en) * | 2014-11-19 | 2015-02-25 | 辽宁科技大学 | Casting roller cooling water channel suitable for casting and rolling thin and wide plates and strips |
| DE202016103920U1 (en) * | 2016-07-20 | 2016-08-03 | Primetals Technologies Austria GmbH | Strand guide roller for guiding a metallic strand in a continuous casting plant |
| CN207533676U (en) * | 2017-09-27 | 2018-06-26 | 南通聚星铸锻有限公司 | A kind of internal cavity surface radiation structure of liquid cooling cast roller |
| CN110434302A (en) * | 2019-08-29 | 2019-11-12 | 中冶赛迪工程技术股份有限公司 | A kind of water cooling rotating device for aluminium strip roll-type Casting Roller |
| CN210755014U (en) * | 2019-08-29 | 2020-06-16 | 中冶赛迪工程技术股份有限公司 | Casting roller for high-speed casting and rolling machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6971174B2 (en) * | 2003-01-08 | 2005-12-06 | Alcoa Inc. | Method of manufacturing a caster roll |
-
2019
- 2019-08-29 CN CN201910809148.2A patent/CN110449558B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1122004A1 (en) * | 2000-02-01 | 2001-08-08 | Officine Meccaniche Bruno Presezzi S.r.l. | Continuous casting roll |
| CN1478003A (en) * | 2000-11-29 | 2004-02-25 | Sms迪马格股份公司 | Casting roll for casting and/or supporting continuous casting billet, in particular for two-roll continuous casting machine |
| CN103611899A (en) * | 2013-12-12 | 2014-03-05 | 东北大学 | Crystallization roll for strip casting and with evenly-cooled roll surface |
| CN104368605A (en) * | 2014-11-19 | 2015-02-25 | 辽宁科技大学 | Casting roller cooling water channel suitable for casting and rolling thin and wide plates and strips |
| DE202016103920U1 (en) * | 2016-07-20 | 2016-08-03 | Primetals Technologies Austria GmbH | Strand guide roller for guiding a metallic strand in a continuous casting plant |
| CN207533676U (en) * | 2017-09-27 | 2018-06-26 | 南通聚星铸锻有限公司 | A kind of internal cavity surface radiation structure of liquid cooling cast roller |
| CN110434302A (en) * | 2019-08-29 | 2019-11-12 | 中冶赛迪工程技术股份有限公司 | A kind of water cooling rotating device for aluminium strip roll-type Casting Roller |
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| CN110449558A (en) | 2019-11-15 |
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