CN1197697A - Casting and rolling mill for producing thin plate slab - Google Patents
Casting and rolling mill for producing thin plate slab Download PDFInfo
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- CN1197697A CN1197697A CN 97105251 CN97105251A CN1197697A CN 1197697 A CN1197697 A CN 1197697A CN 97105251 CN97105251 CN 97105251 CN 97105251 A CN97105251 A CN 97105251A CN 1197697 A CN1197697 A CN 1197697A
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- casting
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Abstract
The casting and rolling mill capable of shortening band steel rolling process includes at least two pairs of rollers and features that each pair of rollers are mounted separately on right and left frames with hinged upper ends and driving mechanism between low ends. It has the advantages of small volume, simple structure, low cost and easy operation.
Description
The invention belongs to a kind of casting and rolling device, particularly a kind of casting and rolling device of producing sheet billet.
The process in early stage of producing steel plate is that molten steel is injected in the crystallizer, makes it be cooled to the solid-state slab that becomes in crystallizer, again slab is rolled into steel plate.Therefore slab is raw material of producing sheet material (being steel plate), and at present traditional slab thickness is generally more than 150mm.Because gauge is bigger, complex process during rolled plate, difficulty is big, in order to simplify the production process of sheet material, shortens the technological process of production of sheet material, saves investment, saves the energy, and sheet blank continuous casting just arises at the historic moment.So-called sheet billet typically refers to the slab of thickness between 50～130mm.Generally be that the slab thickness that this kind method obtains is not very good more than 50mm by the way realization of the thickness of attenuate crystallizer.Also having a kind of method of producing sheet billet is the roll method, it is a left side, exit at crystallizer, right both sides are provided with fixed mount, be provided with at least two breaker rolls on the fixed mount from top to bottom, roll is that freely rotate and removable with respect to fixed mount, the slab that comes out in crystallizer is rolled during through each breaker roll on the fixed mount, make it attenuation, the rolling strength of roll promotes roll by drive unit and moves realization, every breaker roll all is furnished with a cover drive unit, strengthen the rolling amount from top to bottom gradually, it is thin that slab is rolled in the process of walking gradually, is 89104539.2 patent of invention as application number.The shortcoming of this kind device is the device structure complexity, the cost height, and control operation difficulty in service is big.
The casting and rolling device that the purpose of this invention is to provide the production sheet billet of a kind of simple in structure, small investment, easy and simple to handle, easy control.
Technical solution of the present invention is: a kind of casting and rolling device of producing sheet billet, it comprises at least two breaker rolls, it is characterized in that described every breaker roll is contained in respectively on the correct frame and left frame that is positioned at both sides, correct frame and left frame are hinged in the upper end, and the lower end is provided with drive unit between the two.Drive unit can be hydraulic cylinder or pneumatic cylinder, and the framework of a cylinder body and a side is hinged, and the piston rod external end head that matches with cylinder body and the framework of opposite side are hinged.The roll that is installed on the framework can curvedly distribute, and its radius R is: R 〉=3000mm.
The present invention compared with prior art, because the framework of both sides stationary roll upper end is hinged, the lower end is provided with a drive unit between the two, the framework that the drive unit action time can make a side rotates along pin joint with respect to the framework of opposite side, make the roller of pushing aside move simultaneously and open or closed with respect to another roller of pushing aside, to adjust the rolling degree, push aside two simultaneously and form a wedge shape roll gap between the roller, strengthen rolling strength from top to bottom gradually, therefore this device only needs a cover drive unit in running, significantly reduced the complexity of equipment, it is little to have volume simultaneously, in light weight, cost is low, advantages such as operation control is easy.
Below in conjunction with the drawings and the specific embodiments the present invention is further described.
Fig. 1 is the structural representation of the specific embodiment of the invention 1.
Fig. 2 is the structural representation of the specific embodiment of the invention 2.
As shown in Figure 1: 1 is crystallizer, and 2 is correct frame, and 3 is left frame, and the inboard shape of two frameworks is arc, and its radius is 4000mm, and the roll 4 that is installed on the framework also distributes for arc.The roll two ends are respectively equipped with supporting base 5, and supporting base 5 connects with frame fixation, make roll 4 free to rotate with respect to framework.Roll on two frameworks has formed some right from top to bottom.Described correct frame 2 is fixed on the frame, and left frame 3 is hinged with axle 6 in the upper end with correct frame 2.The outlet of left and right framework upper end open size and crystallizer 1 coincide, and enters smoothly to guarantee the slab that comes out in crystallizer.Cylinder body on the lower end of correct frame 2 and the drive unit 7 is hinged, and this drive unit selects for use hydraulic system to drive, and promptly hydraulic jack termination and correct frame 2 lower ends are hinged.The piston rod external end head and left frame 3 lower ends that match with oil cylinder are hinged.When the hydraulic system piston rod was stretched out or bounced back, left frame 3 was rotated with respect to correct frame 2 along axle 6 together with the roll on it 4, do and open or closing motion, thereby the whole roll gap that forms casting and rolling device opens or closure.When roll gap opens, whole from top to bottom roll gap width unanimities, all identical with the upper port width, parallel roll gap state appears.When the hydraulic system piston rod bounced back, left frame 3 was rotated to framework 2 directions along axle 6, and the roll gap spacing of bottom is less than the spacing of top roll gap at this moment, and roll gap is the wedge shape state, and promptly roll gap diminishes gradually from top to bottom.
Its course of work is: pioneer's hydrodynamic pressure system, make roller 4 spacings of pushing aside of two on the framework of the left and right sides identical, promptly be in parallel roll gap state, dummy bar and the low temperature slab that comes out in crystallizer 1 promptly began roll gap again by parallel roll gap by this casting and rolling device and shrank (containing base shrinks) this moment, until the setting value of spacing device, to satisfy required slab thickness.This contraction process is finished by hydraulic system piston rod retraction, because the piston rod retraction drives left frame 3 and rotate to left frame 2 directions along axle 6, makes two rollers 4 of pushing aside the wedge shape roll gap occur.The strength of every from top to bottom breaker roll rolling slab increases gradually, and slab is rolled thin by this device back.In the rolling process, the slab 9 that comes out in crystallizer 1 not exclusively is solid-state, also has liquid core 8 (referring to Fig. 2) in slab 9, and slab just solidifies fully after the rolling.Not only produce sheet billet, also improved the inherent quality of slab 9 simultaneously through rolling.
In order to reach optimum efficiency, the speed that roll gap shrinks is selected between the 0.15-0.30mm/s, and cast temperature is selected between 1450-1550 ℃, and casting speed (being the slab movement velocity) is less than 3.5m/s.
As shown in Figure 2: roll 4 also can distribute by straight line on framework, has with the identical effect of above-mentioned embodiment.
Claims (3)
1. casting and rolling device of producing sheet billet, it comprises at least two breaker rolls [4], it is characterized in that: described every breaker roll [4] is contained in respectively on the correct frame [2] and left frame [3] that is positioned at both sides, and correct frame [2] is hinged in the upper end with left frame [3], and the lower end is provided with drive unit [7] between the two.
2. the casting and rolling device of production sheet billet according to claim 1 is characterized in that described drive unit [7] is hydraulic cylinder or pneumatic cylinder, and the framework of a cylinder body and a side is hinged, and the piston rod external end head that matches with cylinder body and the framework of opposite side are hinged.
3. the casting and rolling device of production sheet billet according to claim 2 is characterized in that the described curved distribution of roll [4] that is installed on the framework, and its radius R is: R 〉=3000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97105251 CN1197697A (en) | 1997-04-30 | 1997-07-11 | Casting and rolling mill for producing thin plate slab |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97104796.0 | 1997-04-30 | ||
| CN97104796 | 1997-04-30 | ||
| CN 97105251 CN1197697A (en) | 1997-04-30 | 1997-07-11 | Casting and rolling mill for producing thin plate slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1197697A true CN1197697A (en) | 1998-11-04 |
Family
ID=25744275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97105251 Pending CN1197697A (en) | 1997-04-30 | 1997-07-11 | Casting and rolling mill for producing thin plate slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1197697A (en) |
-
1997
- 1997-07-11 CN CN 97105251 patent/CN1197697A/en active Pending
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