CN101155651A - Rolling mill and rolling method - Google Patents
Rolling mill and rolling method Download PDFInfo
- Publication number
- CN101155651A CN101155651A CNA2006800116853A CN200680011685A CN101155651A CN 101155651 A CN101155651 A CN 101155651A CN A2006800116853 A CNA2006800116853 A CN A2006800116853A CN 200680011685 A CN200680011685 A CN 200680011685A CN 101155651 A CN101155651 A CN 101155651A
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- China
- Prior art keywords
- wiper rolls
- rolling stock
- rolling
- cooling fluid
- wiping
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0278—Cleaning devices removing liquids
- B21B45/0281—Cleaning devices removing liquids removing coolants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/032—Rolls for sheets or strips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/029—Liquid recovering devices
- B21B45/0293—Recovering coolants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
A rolling mill and a rolling method capable of performing uniform wiping in a plate width direction by uniformizing a pressing force against a rolled material in the plate width direction to prevent it from being deformed. The rolled material (S) is wiped by a pair of upper and lower hollow first wiper rolls (12a, 12b) to which crowning shape is applied. The rolled material (S) is further wiped by a pair of upper and lower hollow second wiper rolls (14a, 14b) to which crowning shape is applied while preventing a coolant (C) from being spattered and re-adhered to the rolled material (S). The coolant (C) discharged from near the end part of the rolled material (S) wiped by the second wiper rolls (14a, 14b) is removed by jetting air (A) from the downstream side of the rolled material in the rolling direction.
Description
Technical field
The present invention relates to a kind of milling train and milling method that possesses removal attached to wiping (wiper) device of the foreign matter on rolling stock surface.
Background technology
Generally in milling train, because frictional heating when rolling and processing heating etc. are constantly heated operation roller and rolling stock.If the temperature of operation roller and rolling stock raises, then not only rolling accuracy descends, and it is sticking to produce the burning of rolling stock and operation roller, and the surface quality of goods descends.Thereby, for the excessive temperature that prevents this operation roller and rolling stock rises, operation roller and rolling stock jet surface are supplied with cooling fluid, cool off and lubricated.
Rolling stock rolling in the milling train finally is wound into coiled type, but, if above-mentioned cooling fluid attached to the rolling stock surface, produces slip when then reeling and produces the skew (stretching) of reeling at direction of principal axis, the infringement job stabilization on rolling stock.In addition, in the annealing process of back stroke, produce uneven lustre and rust, significantly damage the surface quality of rolling stock.
In order to prevent these problems, be provided with the wiping arrangement that is used for from attachments such as rolling stock surface removal cooling fluids in the side that goes out of milling train, possess the existing milling train of this wiping arrangement, open in patent documentation 1,2 for example.
Patent documentation 1: the spy opens flat 5-293531 communique
Patent documentation 2: the spy opens flat 10-146611 communique
But, in the patent documentation 1, be necessary bearing supplying lubricating oil, in order to prevent dispersing of its lubricating oil, must reclaim lubricating oil simultaneously, cause the complicated of device each bearing to the short backing roll of a plurality of length of supporting wiper rolls.In addition, during high-speed rolling,, make its lost of life, therefore, cause the increase of operating cost and the decline of productivity ratio because little bearing is applied high capacity.Have, the cooling fluid of removal is dispersed to the rolling direction downstream under the action of centrifugal force of its rotation attached to than the wide wiper rolls surface in the outer part of plate again, thereby this cooling fluid of dispersing might be again attached to the rolling stock surface.And, utilize the deflection of the pressurizing unit rectification wiper rolls that is arranged on two ends, but, because the diameter of wiper rolls is little, thereby its extruding is defined near the plate end, not with respect to the deflection rectification of plate width direction overall region and the uniformity of extruding force.Consequently, inhomogeneous in the plate width direction cooling fluid removal effect of rolling stock, and on the other hand, produce wrinkling at length direction.
In the patent documentation 2,,, attract air, therefore, increased the importing cost that attracts the vacuum suction device of air from its two wide side edge part to the width injection air of rolling stock by behind the wiper rolls.In addition, owing to possess this vacuum suction device etc., thereby to the distance lengthening of the coiler device of coiling rolling stock, therefore mill length and to the distance lengthening of various measuring instruments, does not cause the decline of goods yield rate in the reversible mill.Have, same with patent documentation 1, the cooling fluid of dispersing might be again attached to the rolling stock surface again.
Summary of the invention
The present invention promptly produces in order to solve above-mentioned problem, and its purpose is, a kind of extruding force homogenising that can make the plate width direction of rolling stock is provided, prevents distortion, the milling train and the milling method that can carry out uniform wiping on plate width direction.
Solve the milling train of the 1st invention of above-mentioned problem, possess:
The up and down a pair of operation roller that rolling stock is rolled;
Supply is used to cool off and lubricate the coolant apparatus of the cooling fluid of described rolling stock and described operation roller; With
The wiping arrangement of the described cooling fluid that removal is adhered on described rolling stock,
Described milling train is characterised in that,
Described wiping arrangement possesses successively from the rolling direction upstream side:
The described rolling stock of wiping and implemented a pair of the 1st wiper rolls up and down of the hollow of convex surface processing;
Prevent the occlusion part that disperses and adhere to again to described rolling stock of described cooling fluid;
The described rolling stock of wiping and implemented a pair of the 2nd wiper rolls up and down of the hollow of convex surface processing; With
From the rolling direction downstream to by near the air jet system of the injection air end of the described rolling stock of described the 2nd wiper rolls wiping.
Solve the milling train of the 2nd invention of above-mentioned problem, the milling train according to the 1st invention is characterized in that possessing
Support the axle head supporting member of described the 1st wiper rolls and described the 2nd wiper rolls axle head respectively;
The structure support body that supports described axle head supporting member and it can above-below direction be moved.
Solve the milling train of the 3rd invention of above-mentioned problem, the milling train according to the 2nd invention is characterized in that described the 1st wiper rolls and described the 2nd wiper rolls are straight roll,
With respect to the mutual cross-over configuration of roll shaft about the plate width direction, and described the 1st wiper rolls and the equidirectional cross-over configuration of described the 2nd wiper rolls.
Solve the milling train of the 4th invention of above-mentioned problem, the milling train according to the 3rd invention is characterized in that, the 1st wiper rolls and described the 2nd wiper rolls be cross-over configuration in the other direction.
Solve the milling train of the 5th invention of above-mentioned problem, the milling train according to the 3rd or 4 inventions is characterized in that,
Possesses angle of the crossing set mechanism according to the wide setting angle of the crossing of the plate of described rolling stock.
Solve the milling train of the 6th invention of above-mentioned problem, the milling train according to the 2nd invention is characterized in that,
Described the 2nd wiper rolls exchange setting of described the 1st wiper rolls of described axle head supporting member being installed and described axle head supporting member being installed.
Solve the milling method of the 7th invention of above-mentioned problem, when rolling, supply be used to cool off and lubricated cooling fluid after, remove the described cooling fluid of on rolling stock, adhering to, described milling method is characterised in that,
The described rolling stock of a pair of the 1st wiper rolls wiping up and down with the hollow of having implemented convex surface processing, and prevent dispersing and adhering to again of described cooling fluid to described rolling stock, with a pair of the 2nd wiper rolls up and down of the hollow of the having implemented convex surface processing described rolling stock of wiping again, from rolling direction downstream injection air to remove from by near the described cooling fluid of discharging the end of the described rolling stock of described the 2nd wiper rolls wiping.
Solve the milling method of the 8th invention of above-mentioned problem, the milling method according to the 7th invention is characterized in that,
Described the 1st wiper rolls and described the 2nd wiper rolls are implemented plane processing, make the mutual cross-over configuration of roll shaft up and down with respect to plate width direction.
Solve the milling method of the 9th invention of above-mentioned problem, the milling method according to the 7th or 8 inventions is characterized in that,
At least the 2nd wiper rolls is granted any one of convex surface processing or cross-over configuration.
The invention effect
Milling train according to the 1st invention possesses: the up and down a pair of operation roller that rolling stock is rolled; Supply is used to cool off and lubricate the coolant apparatus of the cooling fluid of described rolling stock and described operation roller; With the wiping arrangement of removing the described cooling fluid adhere on described rolling stock, wherein, described wiping arrangement possesses successively from the rolling direction upstream side: the described rolling stock of wiping and implemented a pair of the 1st wiper rolls up and down of the hollow of convex surface processing; Prevent the occlusion part that disperses and adhere to again to described rolling stock of described cooling fluid; The described rolling stock of wiping and implemented a pair of the 2nd wiper rolls up and down of the hollow of convex surface processing; And from the rolling direction downstream to by near the air jet system of the injection air end of the described rolling stock of described the 2nd wiper rolls wiping, thereby, can make described rolling stock plate width direction the extruding force homogenising and prevent the distortion, carry out uniform wiping at plate width direction.
Milling train according to the 2nd invention, in the milling train of the 1st invention, the structure support body that possesses the axle head supporting member that supports described the 1st wiper rolls and described the 2nd wiper rolls axle head respectively and support described axle head supporting member and it can above-below direction be moved, thereby, the core that can improve described wiper rolls aligns the maintainability of resetting action etc. with roller, strengthens intensity simultaneously.
Milling train according to the 3rd invention, in the milling train of the 2nd invention, described the 1st wiper rolls and described the 2nd wiper rolls are straight roll, with respect to the mutual cross-over configuration of roll shaft about the plate width direction, and described the 1st wiper rolls and the equidirectional cross-over configuration of described the 2nd wiper rolls, thereby, can make described rolling stock plate width direction the extruding force homogenising and prevent the distortion, carry out uniform wiping at plate width direction.
According to the milling train of the 4th invention, in the milling train of the 3rd invention, the 1st wiper rolls and described the 2nd wiper rolls be cross-over configuration in the other direction, thereby, can stably transport described rolling stock.
According to the milling train of the 5th invention, in the milling train of the 3rd or 4 inventions, possess angle of the crossing set mechanism according to the wide setting angle of the crossing of the plate of described rolling stock, thereby, can easily change the angle of the crossing.
According to the milling train of the 6th invention, in the milling train of the 2nd invention, described the 2nd wiper rolls exchange setting of described the 1st wiper rolls of described axle head supporting member being installed and described axle head supporting member being installed, thereby, can improve maintainability.
Milling method according to the 7th invention, when rolling, supply with after the cooling fluid that is used to cool off and lubricate, the described cooling fluid that removal is adhered on rolling stock, wherein, the described rolling stock of a pair of the 1st wiper rolls wiping up and down with the hollow of having implemented convex surface processing, and prevent dispersing and adhering to again of described cooling fluid to described rolling stock, with a pair of the 2nd wiper rolls up and down of the hollow of having implemented convex surface processing wiping described rolling stock again, from rolling direction downstream injection air to remove from by near the described cooling fluid of discharging the end of the described rolling stock of described the 2nd wiper rolls wiping, thereby, can make described rolling stock plate width direction the extruding force homogenising and prevent the distortion, carry out uniform wiping at plate width direction.
Milling method according to the 8th invention, in the milling method of the 7th invention, described the 1st wiper rolls and described the 2nd wiper rolls are implemented plane processing, make the mutual cross-over configuration of roll shaft up and down with respect to plate width direction, thereby, can make described rolling stock plate width direction the extruding force homogenising and prevent the distortion, carry out uniform wiping at plate width direction.
According to the milling method of the 9th invention, in the milling methods of the 7th or 8 inventions, at least the 2nd wiper rolls is granted any one of convex surface processing or cross-over configuration, thereby, can carry out uniform wiping at the plate width direction of described rolling stock.
Description of drawings
Fig. 1 is the skeleton diagram of the milling train of one embodiment of the invention.
Fig. 2 is the skeleton diagram of wiping arrangement.
Fig. 3 is a sectional view of having implemented the wiper rolls of convex surface processing.
Fig. 4 is the skeleton diagram of the supporting structure of expression wiper rolls.
Fig. 5 is a sectional view of having implemented the wiper rolls of plane processing.
Fig. 6 is that expression has been implemented the wiper rolls of convex surface processing when rolling and implemented the figure that the face of the wiper rolls of plane processing is pressed.
Fig. 7 is the cross-over configuration figure that has implemented the wiper rolls of plane processing in other wiping arrangements of expression.
Fig. 8 is the vertical view of Fig. 7.
Fig. 9 is other cross-over configuration figure that has implemented the wiper rolls of plane processing in other wiping arrangements of expression.
Figure 10 is the vertical view of Fig. 9.
Figure 11 is that expression has been implemented the wiper rolls of convex surface processing when rolling and implemented the figure that the face of wiper rolls of the cross-over configuration of plane processing is pressed.
Figure 12 is the skeleton diagram of the milling train of other embodiment of the present invention.
Among the figure, 1, the 24-milling train, 2, the 3-rolling station, 4-cooling fluid head, 5, the 23-wiping arrangement, 6a, 6b, 9a, 9b-operation roller, 7a, 7b, 10a, 10b-intermediate calender rolls, 8a, 8b, 11a, 11b-strengthen roller, 12a, 12b, 21a, 21b-the 1st wiper rolls, 13a, 13b-shutter, 14a, 14b, 22a, 22b-the 2nd wiper rolls, 15a, 15b-air jet system, 16a, 16b, 17a, 17b-axle head supporting member, 18-housing, 19-supporting structure, the 20-slot part, the 25-coiler device.
The specific embodiment
Below, utilize accompanying drawing, embodiments of the invention are elaborated.Fig. 1 is the skeleton diagram of the milling train of one embodiment of the invention, Fig. 2 is the skeleton diagram of wiping arrangement, Fig. 3 is a sectional view of having implemented the wiper rolls of convex surface processing, Fig. 4 is the skeleton diagram of the supporting structure of expression wiper rolls, Fig. 5 is a sectional view of having implemented the wiper rolls of plane processing, Fig. 6 is that expression has been implemented the wiper rolls of convex surface processing when rolling and implemented the figure that the face of the wiper rolls of plane processing is pressed, Fig. 7 is the cross-over configuration figure that has implemented the wiper rolls of plane processing in other wiping arrangements of expression, Fig. 8 is the vertical view of Fig. 7, Fig. 9 is other cross-over configuration figure that has implemented the wiper rolls of plane processing in other wiping arrangements of expression, Figure 10 is the vertical view of Fig. 9, Figure 11 is that expression has been implemented the wiper rolls of convex surface processing when rolling and implemented the figure that the face of wiper rolls of the cross-over configuration of plane processing is pressed, and Figure 12 is the skeleton diagram of the milling train of other embodiment of the present invention.Also have, the arrow among the figure is represented rolling direction.
As shown in Figure 1, tandem mill 1 is made of rolling station 3 of the rolling station 2 of leading portion, back segment, cooling fluid 4 and wiping arrangement 5. Rolling station 2,3 forms identical formation, in rolling station 2, is provided with: operation roller 6a, 6b that rolling stock S is rolled; Support intermediate calender rolls 7a, the 7b of this operation roller 6a, 6b; Support reinforcement roller 8a, the 8b of this intermediate calender rolls 7a, 7b, same, in rolling station 3, be provided with: operation roller 9a, 9b that rolling stock S is rolled; Support intermediate calender rolls 10a, the 10b of this operation roller 9a, 9b; Support reinforcement roller 11a, the 11b of this intermediate calender rolls 10a, 10b.
Cooling fluid 4 width that are formed on rolling stock S are arranged the formation of a plurality of nozzles (omitting diagram), be arranged on rolling direction upstream side and the downstream of operation roller 6a, 6b, 9a, 9b, spray from above-below direction and be used to cool off and the cooling fluid C (mixture of water or oil or water and oil) of lubrication and rolling material S and operation roller 6a, 6b, 9a, 9b.
As shown in Figure 2, wiping arrangement 5 is arranged on the rolling direction downstream of back segment rolling station 3, with the attachments such as cooling fluid C that remove in the surface attachment of rolling stock S.In wiping arrangement 5, be provided with up and down a pair of the 1st wiper rolls 12a, 12b, shutter 13a, 13b, a pair of the 2nd wiper rolls 14a, 14b and air jet system 15a, 15b up and down up and down successively from the rolling direction upstream side.
As shown in Figure 3, wiper rolls 12a, 12b, 14a, 14b be the hollow form of thin-walled and implemented convex surface processing (crowning-processe), and the external diameter of its axial centre portion is thick, attenuate towards the end.And, as shown in Figure 4, wiper rolls 12a, 12b, 14a, 14b clip rolling stock S and are provided with from above-below direction, the two ends of the 1st wiper rolls 12a, 12b are supported by axle head supporting member 16a, 16b, and can rotate, the two ends of the 2nd wiper rolls 14a, 14b are supported by axle head supporting member 17a, 17b simultaneously, and can rotate.That is to say that wiper rolls 12a, 12b, 14a, 14b are along with rolling stock S rotates linkedly.
As shown in Figure 4, wiping arrangement 5 is provided with housing 18, is supported with structure support body 19 in its rolling direction substantial middle.Axle head supporting member 16a, 16b above-below direction move between the inner face and structure support body 19 of the rolling direction upstream side that is supported in housing 18 freely, and axle head supporting member 17a, 17b above-below direction move between the inner face and structure support body 19 in the rolling direction downstream that is supported in housing 18 freely.And axle head supporting member 16a, 16b, 17a, 17b form roughly the same shape, and axle head supporting member 16a and axle head supporting member 17a, axle head supporting member 16b and axle head supporting member 17b can exchange simultaneously, can distinguish independently and move.
In addition, as shown in Figure 2, last shutter 13a is bearing between the 1st wiper rolls 12a and the 2nd wiper rolls 14a in the top of the rolling direction substantial middle of wiping arrangement 5 (housing 18), extends at plate width direction (wiper rolls 12a, 12b's is axial) at its underpart slot part 20 to be provided with.This slot part 20 is roughly than the wide length of maximum plate of rolling stock S, is arranged to get final product about the drum length of the 1st wiper rolls 12a, 12b.On the other hand, following shutter 13b is bearing between the 1st wiper rolls 12b and the 2nd wiper rolls 14b in the below of the rolling direction substantial middle of wiping arrangement 5 (housing 18).And, air jet system 15a, 15b form the formation that a plurality of nozzles (diagram is omitted) are arranged at the width of rolling stock S, rolling direction downstream at the 2nd wiper rolls 14a, 14b, to rolling stock S and the 2nd wiper rolls 14a, 14b injection air A, remove attachments such as cooling fluid C from above-below direction attached to rolling stock S and the 2nd wiper rolls 14a, 14b surface.
Then, pass through the rolling stock S in the wiping arrangement 5, be transported to coiler device (omitting diagram), be wound into coiled type.
Thereby the rolling stock S that transports between operation roller 6a, the 6b of rotation and between operation roller 9a, 9b, depresses power and bending force by regulating it, is rolled into the thickness of slab of regulation.At this moment, operation roller 6a, 6b, 9a, 9b, under roll groups' such as the intermediate calender rolls 7a, the 7b that support behind from it, 10a, 10b and reinforcement roller 8a, 8b, 11a, 11b effect, roll deflection obtains revising all the time.Also have, the roll group's who supports from behind in the above-mentioned present embodiment mode is not limited thereto, and can be arranged in a plurality of multistage roll group supporting of cohort shape from vertical direction by a plurality of roll groups supportings or dependence.
In addition, when rolling, between rolling stock S and operation roller 6a, 6b or operation roller 9a, 9b, produce frictional heating and processing heating, the temperature of rolling stock S and operation roller 6a, 6b, 9a, 9b raises, but, by from cooling fluid 4 an injection cooling fluid C, lubricate thereby their coolings can be reached.The formation of cooling fluid 4 can be that 1 row constitute or multiple row constitutes, and its supply method can be the regional type of cooling of a plurality of nozzles of On/Off simultaneously or the some type of cooling etc. of each nozzle of On/Off respectively.Have again, in the cooling when surpassing 1000 meters such high-speed rollings of per minute,, make the mixture of water and oil in order to pursue high cooling performance, but, this moment oil phase for the mixing ratio of water, be for example about 3～5%, but be not limited to this value.
Then, rolling in surface attachment the rolling stock S of the cooling fluid C that sprays be transported to wiping arrangement, be clamped in it between the 1st wiper rolls 12a, 12b and the 2nd wiper rolls 14a, 14b between, thereby by wiping, remove cooling fluid C.
At this, in the general rolling line, what know is: if tandem mill 1, then be attended by by front and back and quicken or slow down at the pad of rolling stock of going ahead of the rest and follow-up rolling stock, in addition if reversible mill described later 24 then is attended by acceleration or deceleration at the front end of rolling stock and the part of rear end.Thereby, become heavy if do not have the weight of the wiper rolls of rotary driving force itself, then owing to the inertia force of wiper rolls might can't chase after from the acceleration and deceleration of rolling stock.Thereby, producing speed difference between the two, wiper rolls produces slippage.If produce slippage, then on rolling stock, cause scratch, cause the quality of rolling stock to descend and qualification rate decline, can not satisfy key property as wiping arrangement.
For this reason, among the present invention, by the 1st wiper rolls 12a, 12b and the 2nd wiper rolls 14a, the 14b that forms hollow is set, thereby reduce inertia force, prevent slippage, thereby, in quality decline that can prevent rolling stock S and qualification rate decline, also can tackle high-speed rolling.
In addition, in the existing milling train, wiper rolls obtains rotary driving force from rolling stock, and the backing roll that is used for wiping simultaneously also obtains rotary driving force from wiper rolls.Thereby backing roll can not chase after from the acceleration and deceleration of rolling stock and slippage produces scratch on both sides' roll, and the result is that scratch is changeed and is added on the rolling stock, causes the quality of rolling stock to descend.In order to prevent the slippage between backing roll and the wiper rolls, also consider to reduce acceleration and deceleration speed, but, can cause the decline of productivity ratio, not as very wise move.
So, among the present invention, not using backing roll, thereby, can avoid causing the operating cost increase to reach owing to bearing oil supply mechanism is provided with the complicated problem of equipment that causes owing to the bearing life decline of backing roll.And then, can seek the reduction that yield rate improves, equipment imports cost and operating cost, can improve maintainability.
As mentioned above, wiper rolls 12a, 12b, 14a, 14b are supported by axle head supporting member 16a, 16b, 17a, 17b at its two ends.Thereby, if simple as shown in Figure 5 enforcement has been set the wiper rolls of plane processing (flat-processe) (wiper rolls 21a described later, 21b, 22a, 22b), then to the extruding force of rolling stock effect, just the face between rolling stock S and the 1st wiper rolls 12a, 12b or the 2nd wiper rolls 14a, the 14b is pressed inhomogeneously, might disarray the shape of rolling stock S.In addition, the wiping that is created on the plate width direction is inhomogeneous.
At this, utilize Fig. 6, to the enforcement on the width of rolling stock the wiper rolls of convex surface processing and the face of having implemented the wiper rolls of plane processing compress into row relatively.Among Fig. 6, represented to implement the face of the wiper rolls of convex surface processing with solid line and pressed, implemented the face of the wiper rolls of plane processing with single-point line expression and pressed.
As shown in Figure 6, implemented the wiper rolls of plane processing, forced down at the wide central portion face of plate, along with to plate end face voltage rise height.That is, in the position that face forces down, cooling fluid is removed ability drop (remaining oil mass is big), otherwise, press high position at face, wiping properties excessively increases, and disarrays the shape of rolling stock.On the other hand, implemented the wiper rolls of convex surface processing, existed face to press high slightly part near the plate end, but, whole zone roughly smoothly also can add certain face pressure in plate is wide.Thereby it is much the same at the width of rolling stock that cooling fluid is removed ability, keeps by the shape after the operation rolling system, can not produce the disorder of unusual plate shape.In addition, among Fig. 6, the face when plate of rolling stock is wide to be changed of also showing is simultaneously pressed and is distributed, if the wide variation of plate has then been implemented in the wiper rolls of plane processing, the face of plate width direction is pressed skewness.On the other hand, implemented in the wiper rolls of convex surface processing, even the wide variation of plate, the face of plate width direction is pressed to distribute and is not also almost changed, and can add roughly certain face and press.
So,,, can both press, also can be made like cooling fluid and remove ability at plate width direction at the additional roughly certain face of plate width direction no matter how wide the plate of rolling stock S is by wiper rolls 12a, 12b, 14a, the 14b that has implemented convex surface processing is set.In addition, the shape of rolling stock S can be kept, therefore, the wrinkling and abrasive generation of the length direction of rolling stock S can be prevented.
Cooling fluid removal method at first is to utilize the 1st wiper rolls 12a, 12b to remove the cooling fluid C that forms the thick-layer shape on rolling stock S surface.Attached to the cooling fluid C on rolling stock S surface,, and flow to the width outside or the rolling stock direction upstream side of rolling stock S via the wiping of the 1st wiper rolls 12a, 12b.Flow to the wide outer cooling fluid C of plate, directly to the below of rolling stock S fall or be stated from plate outside wide the 1st wiper rolls 12a and the clearance surface of the 1st wiper rolls 12b be carried over into the rolling direction downstream.At this moment, the 1st wiper rolls 12a, 12b rotate along with transporting of rolling stock S, and therefore, under its action of centrifugal force, cooling fluid C disperses.
For what make that this cooling fluid C that disperses can be not once more be provided with attached to rolling stock S surface is shutter 13a, 13b up and down, and last shutter 13a is different with following shutter 13b structure.Last shutter 13a forms tabular, its end be provided with collect disperse to above cooling fluid C, the slot part 20 that their are discharged to the width outside of rolling stock S.On the other hand, following shutter 13b forms tabular, collects to disperse to the cooling fluid C of below, with they the width outside or discharges downwards to rolling stock S.
So, by preventing cooling fluid C, thus, can make the 2nd wiper rolls 14a to adhering to again by the rolling stock S behind the 1st wiper rolls 12a, the 12b, the thickness attached to the cooling fluid C on rolling stock S surface when 14b transports is thin as best one can.Thereby, can reduce the cooling fluid of the 2nd wiper rolls 14a, 14b and remove load.
Thereafter, the cooling fluid C that remains in rolling stock S surface is thinly removed by the wiping of the 2nd wiper rolls 14a, 14b again.Also have, the 2nd wiper rolls 14a, 14b from maintainability judge preferably with the 1st wiper rolls 12a, 12b same size for well.Have again, be removed to the cooling fluid C outside the rolling stock S width via the wiping of the 2nd wiper rolls 14a, 14b, the below of the 2nd wiper rolls 14a, 14b outside plate is wide falls or attached to the 2nd wiper rolls 14a, 14b surface, along with its rotation is carried over into the rolling direction downstream.At this, the total amount of the cooling fluid C that per 1 rotation is taken out of, more considerably less with the amount of being taken out of by the 1st wiper rolls 12a, 12b, cooling fluid C can not disperse when the 2nd wiper rolls 14a, 14b wiping.
, constantly adhere to the cooling fluid C of removal on the surface of the 2nd wiper rolls 14a, 14b along with rolling carrying out, thereby, as long as become the reason of dispersing once placing.So, from the rolling direction downstream near the two ends of the rolling stock S of the 2nd wiper rolls 14a, 14b by air jet system 15a, 15b injection air A, the cooling fluid C that is deposited in the 2nd wiper rolls 14a, 14b surface blown from rolling stock S and the 2nd wiper rolls 14a, 14b flies to a distant place.Because the cooling fluid C attached to the 2nd wiper rolls 14a, 14b surface is very micro-, thereby, the air A that contains the cooling fluid C that blows after flying need not be reclaimed.
Existing milling train, the device and the vacuum attraction source of the air that is provided for to the air fed blowing plant in the whole zone of the width of rolling stock between the 1st wiper rolls and the 2nd wiper rolls and is used to attract supply with are essential, but, among the present invention, the 13a of shutter up and down, 13b that the cooling fluid C that prevents to disperse by setting adheres to again, thereby, can keep cooling fluid and remove performance, can seek the reduction of equipment cost.
In addition, owing to utilize axle head supporting member 16a, 16b, 17a, 17b to support the shaft end of wiper rolls 12a, 12b, 14a, 14b independently, thereby the core of each roller aligns and roller is reset action and waited the maintainability raising.Have again,, therefore, can also help the thin-walled property of housing 18 because the intensity of utilizing structure support body 19 can carry out housing 18 is strengthened.
And, by forming aforesaid formation, can make the few small-sized wiping arrangement 5 of component count, therefore, can seek the reduction of original cost and operating cost.And, miniaturization based on wiping arrangement 5, thereby, can shorten distance from milling train 1 to coiler device, therefore seek the raising of qualification rate, the thickness of slab meter that goes out side that is configured in operation roller 6a, 6b or operation roller 9a, 9b and the distance of SHAPE DETECTION device can be shortened to, therefore, the raising of rolling accuracy can be sought.
Next, shown in Figure 5ly implemented the 1st wiper rolls 21a, the 21b of plane processing and the situation of the 2nd wiper rolls 22a, 22b describes about possessing.
As Fig. 7, shown in Figure 8, in the wiping arrangement 23, be provided with up and down a pair of the 1st wiper rolls 21a, 21b, shutter 13a, 13b, a pair of the 2nd wiper rolls 22a, 22b and air jet system 15a, 15b up and down up and down successively from the rolling direction upstream side.Wiper rolls 21a, 21b, 22a, 22b are the hollow form of thin-walled and have implemented plane processing.And, the 1st wiper rolls 21a, 21b and the 2nd wiper rolls 22a, 22b, make the up and down mutual cross-over configuration of roll shaft with respect to plate width direction respectively, a pair of up and down angle of the crossing with regulation of the 1st wiper rolls 21a, 21b and the 2nd wiper rolls 22a, 22b is in equidirectional cross-over configuration.
At this, utilize Figure 11, to the enforcement on the rolling stock width wiper rolls of convex surface processing and the face of wiper rolls of having implemented the cross-over configuration of plane processing compress into row relatively.Among Figure 11, represented to implement the face of the wiper rolls of convex surface processing with solid line and pressed, implemented the face of wiper rolls of the cross-over configuration of plane processing with single-point line expression and pressed.
As shown in Figure 6, there is not cross-over configuration to implement under the situation of wiper rolls of plane processing, the face that produces plate width direction is pressed inhomogeneous, and as shown in figure 11, implemented the wiper rolls of plane processing by cross-over configuration, thereby the wiper rolls face roughly of equal value that can obtain and implement convex surface processing is pressed distribution.Also can obtain same effect during the wide variation of this plate at rolling stock.
In addition, shown in Fig. 9,10, also the cross-over configuration direction of the 1st wiper rolls 21a, 21b and the 2nd wiper rolls 22a, 22b can be disposed in the other direction.In the situation of cross-over configuration, the direction of rotation of rolling direction and each roller only produces so big the departing from of the angle of the crossing, and might produce the distortion of rolling stock S, but, by such cross-over configuration, obtain the balance of moment on side and the whole top and bottom below the rolling stock S that joins at the upper face side of the rolling stock S that joins with the 1st wiper rolls 21a and the 2nd wiper rolls 22a, with the 1st wiper rolls 21b and the 2nd wiper rolls 22b, so can more stably transport rolling stock S.
Thereby, even wiper rolls 21a, the 21b, 22a, the 22b that have implemented plane processing and cross-over configuration are set, also be no matter how wide the plate of rolling stock S is, can both press, also can be made like cooling fluid and remove ability at plate width direction at the additional roughly certain face of plate width direction.In addition, the shape of rolling stock S can be kept, therefore, the wrinkling and abrasive generation of the length direction of rolling stock S can be prevented.
In addition, by utilizing as shown in Figure 4 axle head supporting member 16a, 16b, 17a, 17b to support wiper rolls 21a, 21b, 22a, 22b independently, by the angle of the crossing set mechanism that can set a plurality of angles of the crossing (omitting diagram) supporting, can easily change the angle of the crossing simultaneously.Also have, when the plate of rolling stock S is wide, can control the angle of the crossing and make it to increase, when the plate width of rolling stock S, can control the angle of the crossing simultaneously and make it to reduce.Thereby the core of each roller aligns the maintainability of resetting action etc. with roller in the time of can improving cross-over configuration and change.
Also have,, also can obtain same effect even cross-over configuration has been implemented wiper rolls 12a, 12b, 14a, the 14b of convex surface processing.Have again, even any one carries out convex surface processing, another is carried out under the situation of plane processing in wiper rolls 12a, 12b, perhaps/and with any one carries out convex surface processing, another is carried out also can obtaining same effect under the situation of plane processing among wiper rolls 14a, the 14b.
In addition, when in the 1st wiper rolls 12a, 12b, using nonmetal roller such as nonwoven cloth rewinder roll, by at least the 2nd wiper rolls 14a, 14b being granted any one of convex surface processing or cross-over configuration, thereby, can obtain same wiping effect.When adopting the convex surface working roll also is as mentioned above, can be with any one carries out convex surface processing, another is carried out plane processing among the 2nd wiper rolls 14a, the 14b.
In the present embodiment, be illustrated, but, also can be applicable to reversible mill 24 as shown in figure 12 about tandem mill 1.
As shown in figure 12, on the milling train 24, cooling fluid 4 is set in the both sides of rolling station 2, wiping arrangement 5 is set, further coiler device 25 is set in its both sides in its both sides.In reversible mill 24, rolling direction changes on each mill train, utilizes the coiler device 25 coiling rolling stock S of turnover side on each mill train.Thereby wiping arrangement 5 also is necessary to be configured in the turnover side.At this moment, each the mill train direction that is configured in rolling stock S is gone into the wiping arrangement 5 of side, from above-below direction clamping rolling stock S, is used to prevent in the adverse current of going into the cooling fluid C that side supplies with.On the other hand, the wiping arrangement 5 going out the side configuration can obtain and above-mentioned same effect.
Thereby, according to milling train of the present invention, possess: up and down a pair of operation roller 6a, 6b and operation roller 9a, 9b that rolling stock S is rolled; Supply is used to cool off and the cooling fluid of the cooling fluid C of lubrication and rolling material S and operation roller 6a, 6b and operation roller 9a, 9b 4; With the wiping arrangement 5 of removing the cooling fluid C adhere on rolling stock S, in the described milling train 1, wiping arrangement 5 possesses successively from the rolling direction upstream side: wiping rolling stock S and implemented a pair of the 1st wiper rolls 12a, the 12b up and down of the hollow of convex surface processing; Prevent the 13a of occlusion part up and down, the 13b that disperse and adhere to again to rolling stock S of cooling fluid C; Wiping rolling stock S and implemented a pair of the 2nd wiper rolls 14a, the 14b up and down of the hollow of convex surface processing; And from the rolling direction downstream to by air jet system 15a, the 15b of near the injection air A end of the rolling stock S of the 2nd wiper rolls 14a, 14b wiping, thereby, even the wide variation of the plate of rolling stock, also can be in the additional uniform extruding force of plate width direction, can suppress the wrinkling of length direction, therefore, can carry out uniform wiping at plate width direction.And when high-speed rolling and the acceleration and deceleration zone of mill speed, wiper rolls 12a, 12b, 14a, 14b can slippages on rolling stock S yet, therefore can suppress scratch.Have again, by with wiping arrangement 5 miniaturizations, thereby, can seek the reduction of original cost and operating cost, can shorten to the distance of each detector and coiler device, therefore, can improve rolling accuracy and improve qualification rate simultaneously.
In addition, owing to possess axle head supporting member 16a, 16b and axle head supporting member 17a, the 17b of the axle head that supports the 1st wiper rolls 12a, 12b and the 2nd wiper rolls 14a, 14b respectively, with bolster end bearing member 16a, 16b, 17a, 17b and structure support body 19 that it can above-below direction be moved, thereby, the core that can improve wiper rolls 12a, 12b, 14a, 14b aligns the maintainability of resetting action etc. with roller, can strengthen the intensity of wiping arrangement 5 simultaneously.
In addition, dispose roll shaft up and down by the 1st wiper rolls 21a, 21b and the 2nd wiper rolls 22a, the 22b that will implement plane processing mutually across with respect to plate width direction, equidirectional cross-over configuration of while, thereby, can make rolling stock S plate width direction the extruding force homogenising and prevent the distortion, carry out uniform wiping at plate width direction.
In addition, by with the 1st wiper rolls 21a, 21b and the 2nd wiper rolls 22a, 22b cross-over configuration in the other direction, thereby, can stably transport rolling stock S.
In addition, by possessing angle of the crossing set mechanism according to the wide setting angle of the crossing of the plate of rolling stock S, thereby, can easily change the angle of the crossing.
Have again, axle head supporting member 16a, 17a can exchange mutually at the axle head of the 1st wiper rolls 12a, 21a and the 2nd wiper rolls 14a, 22a, have, axle head supporting member 16b, 17b can exchange mutually at the axle head of the 1st wiper rolls 12b, 21b and the 2nd wiper rolls 14b, 22b again.Thus, the assembling replacement cycle of wiper rolls can be with the standby roller as 1 group on the 1st wiper rolls and the 2nd wiper rolls in the different situation.In addition, also can improve maintainability usually the time.
Utilizability on the industry
Can be applicable to the milling train that possesses wiping arrangement.
Claims (9)
1. milling train, it possesses:
The up and down a pair of operation roller that rolling stock is rolled;
Supply is used to cool off and lubricate the coolant apparatus of the cooling fluid of described rolling stock and described operation roller; With
The wiping arrangement of the described cooling fluid that removal is adhered on described rolling stock,
Described milling train is characterised in that,
Described wiping arrangement possesses successively from the rolling direction upstream side:
The described rolling stock of wiping and implemented a pair of the 1st wiper rolls up and down of the hollow of convex surface processing;
Prevent the occlusion part that disperses and adhere to again to described rolling stock of described cooling fluid;
The described rolling stock of wiping and implemented a pair of the 2nd wiper rolls up and down of the hollow of convex surface processing; With
From the rolling direction downstream to by near the air jet system of the injection air end of the described rolling stock of described the 2nd wiper rolls wiping.
2. milling train according to claim 1 is characterized in that possessing:
Support the axle head supporting member of described the 1st wiper rolls and described the 2nd wiper rolls axle head respectively;
The structure support body that supports described axle head supporting member and it can above-below direction be moved.
3. milling train according to claim 2 is characterized in that,
Described the 1st wiper rolls and described the 2nd wiper rolls are straight roll,
With respect to the mutual cross-over configuration of roll shaft about the plate width direction, and described the 1st wiper rolls and the equidirectional cross-over configuration of described the 2nd wiper rolls.
4. milling train according to claim 3 is characterized in that,
The 1st wiper rolls and described the 2nd wiper rolls be cross-over configuration in the other direction.
5. according to claim 3 or 4 described milling trains, it is characterized in that,
Possesses angle of the crossing set mechanism according to the wide setting angle of the crossing of the plate of described rolling stock.
6. milling train according to claim 2 is characterized in that,
Described the 2nd wiper rolls exchange setting of described the 1st wiper rolls of described axle head supporting member being installed and described axle head supporting member being installed.
7. milling method, when rolling, supply be used to cool off and lubricated cooling fluid after, remove the described cooling fluid of on rolling stock, adhering to, described milling method is characterised in that,
The described rolling stock of a pair of the 1st wiper rolls wiping up and down with the hollow of having implemented convex surface processing, and prevent dispersing and adhering to again of described cooling fluid to described rolling stock, with a pair of the 2nd wiper rolls up and down of the hollow of the having implemented convex surface processing described rolling stock of wiping again, from rolling direction downstream injection air to remove from by near the described cooling fluid of discharging the end of the described rolling stock of described the 2nd wiper rolls wiping.
8. milling method according to claim 7 is characterized in that,
Described the 1st wiper rolls and described the 2nd wiper rolls are implemented plane processing, make the mutual cross-over configuration of roll shaft up and down with respect to plate width direction.
9. according to claim 7 or 8 described milling methods, it is characterized in that,
At least the 2nd wiper rolls is granted any one of convex surface processing or cross-over configuration.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005114128A JP4751092B2 (en) | 2005-04-12 | 2005-04-12 | Rolling mill and rolling method |
| JP114128/2005 | 2005-04-12 | ||
| PCT/JP2006/304758 WO2006109380A1 (en) | 2005-04-12 | 2006-03-10 | Rolling mill and rolling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101155651A true CN101155651A (en) | 2008-04-02 |
| CN101155651B CN101155651B (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800116853A Active CN101155651B (en) | 2005-04-12 | 2006-03-10 | Rolling mill and rolling method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4751092B2 (en) |
| KR (1) | KR100916170B1 (en) |
| CN (1) | CN101155651B (en) |
| WO (1) | WO2006109380A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823077A (en) * | 2010-04-27 | 2010-09-08 | 中冶南方工程技术有限公司 | Progressive diversion splash baffle |
| CN102123801A (en) * | 2008-08-18 | 2011-07-13 | Sms西马格股份公司 | Method and apparatus for cooling and drying a hot-rolled strip or a metal sheet in a rolling mill |
| CN106001122A (en) * | 2016-06-20 | 2016-10-12 | 王永志 | Steel rolling device |
| CN111050936A (en) * | 2018-06-13 | 2020-04-21 | 诺维尔里斯公司 | System and method for containing viscous material in roll processing |
| US11007557B2 (en) | 2018-06-13 | 2021-05-18 | Novelis Inc. | Systems and methods for removing viscous materials in metal article processing |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101722644B1 (en) * | 2016-05-18 | 2017-04-04 | 포스마텍 주식회사 | Non-contact type removing apparatus for rolling oil |
| NL1042559B1 (en) * | 2017-09-27 | 2019-04-03 | Wuppermann Staal Nederland B V | Passivation system comprising an expelling device, and such an expelling device |
| CN108856315B (en) * | 2018-08-08 | 2023-07-11 | 浙江辛子精工机械股份有限公司 | Improved oil scraping device for outer surface of cold-rolled steel pipe |
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| JPH08117820A (en) * | 1994-10-27 | 1996-05-14 | Nippon Carbon Eng Kk | Treatment of residual liquid at end of rolled metallic sheet and device therefor |
| US5737796A (en) * | 1996-09-11 | 1998-04-14 | T. Sendzimir, Inc. | Roll type strip wiping system |
| JP3113590B2 (en) * | 1996-11-14 | 2000-12-04 | 日鉱金属株式会社 | Wiper device |
| EP1043083B8 (en) * | 1998-10-26 | 2005-08-03 | Mitsubishi Heavy Industries, Ltd. | Wiper for liquid substances |
| JP2004181506A (en) * | 2002-12-05 | 2004-07-02 | Hitachi Ltd | Wiper device and wiping method |
| TWI247633B (en) * | 2003-04-02 | 2006-01-21 | Jfe Steel Corp | Cross-rolling rolling machine and method of using same |
-
2005
- 2005-04-12 JP JP2005114128A patent/JP4751092B2/en active Active
-
2006
- 2006-03-10 KR KR1020077023336A patent/KR100916170B1/en active IP Right Grant
- 2006-03-10 CN CN2006800116853A patent/CN101155651B/en active Active
- 2006-03-10 WO PCT/JP2006/304758 patent/WO2006109380A1/en active Application Filing
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123801A (en) * | 2008-08-18 | 2011-07-13 | Sms西马格股份公司 | Method and apparatus for cooling and drying a hot-rolled strip or a metal sheet in a rolling mill |
| US9358598B2 (en) | 2008-08-18 | 2016-06-07 | Sms Group Gmbh | Method and apparatus for cooling and drying a hot-rolled strip or a metal sheet in a rolling mill |
| CN101823077A (en) * | 2010-04-27 | 2010-09-08 | 中冶南方工程技术有限公司 | Progressive diversion splash baffle |
| CN101823077B (en) * | 2010-04-27 | 2012-07-18 | 中冶南方工程技术有限公司 | Progressive diversion splash baffle |
| CN106001122A (en) * | 2016-06-20 | 2016-10-12 | 王永志 | Steel rolling device |
| CN111050936A (en) * | 2018-06-13 | 2020-04-21 | 诺维尔里斯公司 | System and method for containing viscous material in roll processing |
| US10953447B2 (en) | 2018-06-13 | 2021-03-23 | Novelis Inc. | Systems and methods for containing viscous materials in roll processing |
| US11007557B2 (en) | 2018-06-13 | 2021-05-18 | Novelis Inc. | Systems and methods for removing viscous materials in metal article processing |
| CN111050936B (en) * | 2018-06-13 | 2022-08-30 | 诺维尔里斯公司 | System and method for containing viscous material in roll processing |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070110934A (en) | 2007-11-20 |
| JP4751092B2 (en) | 2011-08-17 |
| CN101155651B (en) | 2011-01-19 |
| WO2006109380A1 (en) | 2006-10-19 |
| JP2006289444A (en) | 2006-10-26 |
| KR100916170B1 (en) | 2009-09-08 |
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Effective date of registration: 20151029 Address after: Japan Tokyo port, 34 No. 6 Chicago Patentee after: Co., Ltd of general sharp special metallurgical technology Japan Address before: Tokyo, Japan Patentee before: Mitsubishi Hitachi Steel, Ltd. |