CN103338873A - Equipment and method for cold-rolling a metal strip - Google Patents
Equipment and method for cold-rolling a metal strip Download PDFInfo
- Publication number
- CN103338873A CN103338873A CN2011800667787A CN201180066778A CN103338873A CN 103338873 A CN103338873 A CN 103338873A CN 2011800667787 A CN2011800667787 A CN 2011800667787A CN 201180066778 A CN201180066778 A CN 201180066778A CN 103338873 A CN103338873 A CN 103338873A
- Authority
- CN
- China
- Prior art keywords
- actuator
- reach
- wheel
- milling train
- local power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
- B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2267/00—Roll parameters
- B21B2267/18—Roll crown; roll profile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2269/00—Roll bending or shifting
- B21B2269/02—Roll bending; vertical bending of rolls
- B21B2269/08—Back-up roll bending
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
Abstract
The invention relates to a rolling mill and to a cold-rolling method, wherein said rolling mill includes: an upper assembly of n rolls located in a recess of the rolling mill above a plane (P) along which a strip (9) to be rolled moves, and a lower assembly of n rolls located in another recess of the rolling mill opposite the upper assembly and below the plane (P) along which the strip (9) moves, wherein said upper and lower assemblies are to cooperate so as to apply a rolling force onto said strip (9); each of the assemblies including a working roll (1) contacting the strip (9) to be rolled and being supported by supporting cylinders (2) which are in turn supported by bearing cylinders (3) which are in turn supported by rows of bearing rollers (4); each row of bearing rollers (4) including a plurality of bearing rollers (4) mounted on a single roller-supporting axle (41); and at least one row of bearing rollers (4) of the upper assembly being actuated by a plurality of bearing-roller actuators (42) in a direction substantially perpendicular to the plane (P) along which the strip (9) moves, characterized in that: each bearing-roller actuator (42) is capable of applying a local force, along said direction substantially perpendicular to the plane along which the strip moves, directly onto the roller-supporting axle (41) of said row of rolls; in that the number of bearing-roller actuators (42) capable of applying said local force onto the supporting axle of a single row of bearing rollers is at least equal to the number of bearing rollers (4) of said row; and in that it comprises a control device (8) capable of controlling each of the actuators (42) such that the sum of the local forces applied by each of the actuators of the rolling mill is substantially equal to said rolling force.
Description
Technical field
The present invention relates to sheet metal strip cold-rolling equipment as described in the preamble and method according to aforesaid right requirement 1 and 14.
Especially, the present invention relates to milling train seat or milling train cold rolled metal strip by steel rolling equipment, especially rolling some alloy that needs to use small diameter roller, for example stainless steel, silicon steel or some nonferrous alloy.These metal alloys are rolled in the equipment that comprises at least one multi-roll mill seat, and for example, 12 rollers (high) or 20 roller mills are namely equipped the milling train of 12 or 20 rollers.
Background technology
Known, the rigidity that the less roll of diameter has in the milling train seat can not be born rolling stress and is not crooked.Its therefore in the milling train seat by supporting or backing roll and wheel support.Typically, 20 roller mills are made of the last assembly of ten rolls and the following assembly of ten rolls, each assembly is arranged according to pyramid or bunch shape, comprise and the working roll for the treatment of that strip contacts and being supported by two backing rolls, backing roll itself is supported by three backing rolls, backing roll itself is supported by four row's bogie wheels, and each is arranged bogie wheel and is made of the bogie wheel on a plurality of unique axles that are installed in bearing wheels.
Yet the cluster of this roller is arranged and is not enough to avoid the distortion that causes because of working roller bending, thereby makes by the cross section central part of strip thicker than edge part.
At traditional milling train, for example in the four roll shape milling trains, usually by more or less complicated band cross section correction system, be commonly referred to " control of crown control(convexity " by the variation in strip cross section) ", namely roll crown and straightening system correct.Described system for example allows to give backing roll protruding shape, thus the opposing bending of work roll.
Under the situation of multi-roll mill, the solution based on the convexity control system has been proposed very early.Therefore, US3147648 has described equipment in a conventional manner and has been used on the carrying roll structure of assembly and applies many roller rolling machines of the jack of thrust, and described thrust causes equaling substantially described thrust and the described roll-force that goes up assembly weight summation.This milling train is characterised in that constituting the bogie wheel of going up assembly equips the centrifugal mechanism that is activated by tooth bar.Centrifugal mechanism allows described rotating shaft of taking turns to diverge in the longitudinal axis of the axle of bearing wheels, for example reach.Thus, row's wheel of its support and the contact wire between the roller can obtain to adjust, thereby give its straight or crooked direction, correct to be fit to bending of work roll.
The more modern equipment of for example describing among the EP0580292 has adopted such design again, wherein, last assembly and following assembly compress by compressing jack, and realize independently convexity control system by activating two row's upper support wheels with the centrifugal device of two row's lower support wheels.Still based on same principle, WO03/061864 has described the equipment of equipment tooth bar, and described tooth bar can be corrected the radian of working roll by acting on four row's upper support wheels.In an enforcement modification of being described by WO93/05898 or WO01/94042, the bending of wheel reach obtains by the effect of a plurality of wedge systems.
It's a pity that the known permission control of tradesman treats that the multi-roll mill in strip cross section especially has following shortcoming:
The excessive mechanical complexity of convexity control system of – band tooth bar or voussoir has improved production and maintenance cost on the one hand, has also increased the risk of fault simultaneously on the other hand;
The reaction time that – improves makes to be handled the convexity control system in real time according to the geometry that is recorded by strip and becomes difficult;
-for the roll-force that is distributed on the different wheels, can't be controlled it by the given position of convexity control system according to it;
-under the situation of monolithic devices milling train seat, because bulk deformation (described bulk deformation be called as at present " support convexity) takes place in described milling train seat under the effect of roll-force; thereby by being positioned at before suitable measurement systems below the described milling train seat measures and confirm described variation, can not correct the thickness of band and/or the variation of section.
Summary of the invention
The objective of the invention is to propose to solve the milling train of above-mentioned shortcoming and the method for cold rolled metal strip.
Under this purpose, by content proposition milling train and the cold rolling process of claim 1 and 14.
One group of dependent claims has proposed advantage of the present invention equally.
From the multi-roll mill of the equipment that is used for equipping cold rolling sheet metal strip to be rolled, described milling train comprises:
The last assembly of –, it comprises roll, n roll for example, described upward assembly is arranged in the cavity of described milling train, or especially in the milling train seat cavity of described milling train, be positioned at the top of described band travel plane, following assembly, it comprises roll equally, for example n roll, be positioned at another cavity of described milling train, in the face of the described assembly of going up, and be in the below of described band travel plane, band born to allow the roll-force that is rolled thereby described assembly up and down is used for cooperation each other, and especially, n equals 10;
Each assembly of – comprises by being used for and the working roll for the treatment of that strip contacts that backing roll supports, backing roll itself is supported by backing roll, and backing roll itself is supported by many rows bogie wheel, each working roll is supported by two backing rolls especially, backing roll itself is supported by three backing rolls, and backing roll itself is supported by four row's bogie wheels;
– respectively arranges bogie wheel and comprises a plurality of bogie wheels that are installed on the wheel reach;
At least one row's bogie wheel of the last assembly of – on the direction that is basically perpendicular to the band travel plane, activated by a plurality of bogie wheel actuators;
Milling train according to the present invention is characterised in that:
The actuator of each bogie wheel of – can be along the described direction that is basically perpendicular to the band travel plane, particularly at least one movable part by described actuator rests on the described reach, and use cam or voussoir system in mode freely, directly the reach at described row's wheel applies a local power, described actuator for example comprises jack, jack comprises hollow body especially, in this main body, can move the movable piston of equipment bar, therefore and described movable part is the supporting device of an end that is positioned at the described bar of described piston, and supply to be bearing on the described reach, or be bearing in usually at least one reach;
– can apply the bogie wheel actuator quantity of described local power at the reach of same row's bogie wheel, equals the quantity of described same row's bogie wheel at least;
It comprises manipulation device –, described each actuator of individual operation especially, thus the local power sum that each actuator by milling train is applied equals described roll-force substantially.In addition, especially, described manipulation device can be according at least one thickness measurements and/or the roughness measurement value of milling train exit band are handled described actuator, thereby where necessary, the convexity of working roll and the gap between degree of deformation and/or the double-working changed correct, thus via thickness and/or the flatness of the actuating conditioning strip material of described actuator.
From treat the milling method of strip by rolling equipment, milling method according to the present invention is characterised in that it may further comprise the steps:
– described band is begun rolling before: apply the actuator of at least one bogie wheel of local power by at least one reach at row's bogie wheel, receive the preset initial order, and described actuator activate according to described preset initial order;
– is during described band rolling:
-especially by the thickness measure mechanism of at least one described band, measure the described thickness of strip in the milling train exit at least;
-especially by the roughness measurement mechanism of at least one described band, measure the described strip flatness in the milling train exit at least;
-by each thickness measure mechanism and each roughness measurement mechanism, fore-and-aft motion transmits each thickness measurements and each roughness measurement value respectively;
-via described manipulation device, by sending default regulating command to described actuator, according to described at least thickness and/or roughness measurement value, handle the actuating of at least one actuator by described manipulation device.
Especially and better, the described step 1 of launching during described band rolling repeats all over connecing a circulation everywhere, thereby forms the circulation of reviewing to band cross section and/or THICKNESS CONTROL.Milling train according to the present invention and described method can be controlled the gap between the double-working on the one hand, and can distribute roll-force along the bogie wheel reach on the other hand, thereby the local power sum that the actuator by bogie wheel is applied equals general rolling force, and allow in the operation of rolling being born by described actuator and in the working roll gap, carrying out real-time dynamic management by the roll-force that produces because of band, and for the known milling train of industry technology personnel, also do not have the described management to roll-force.Local power according to the present invention is actual to be the component of described roll-force.In other words, better, a plurality of actuators that act on row's wheel reach allow when applying described roll-force, carry out convexity control by the difference action of each actuator on the described reach.For example, for the roll-force x that represents with newton and the milling train that comprises the y row bogie wheel that can be activated by described actuator, each reach comprises n bogie wheel, especially, can count n or n+1 actuator according to milling train of the present invention, and be respectively x/(ny by each actuator i usually in the local power that described reach applies) ± t
iOr x/(y(n+1)) ± t
i, t
iBe to be defined as to make two adjacent local power usually, for example along the ratio of reach in abutting connection with the local power that distributes, between interval [0.8; 1.2] adjusting power.
Better, can be according to the variation of roll-force according to manipulation device of the present invention, for example by cooperating with at least one bogie wheel actuator, compensation thickness of strip and section change the variation (for example, the described deflection of milling train seat) that produces because of milling train seat bulk deformation.Especially, at least one actuator equipment is to the position-measurement device of the described movable part that is bearing in described reach of described actuator, and at least one actuator cooperates with described manipulation device, thus the described deflection of reeler seat.For example, described manipulation device can send at least one correcting signal to actuator, described actuator is equipped at least one described position measurement device of its movable part, position sensor for example, described correcting signal especially can be according to deformation curve and/or thrust the distribution curve different actuators between of milling train seat with respect to thrust, control the rectification to the described movable part position of described actuator, the described clamping force that be added in the assembly weight this moment equals roll-force substantially.Especially, described deformation curve and distribution curve can by experiment or calculate and determine.Therefore, change relevant thickness of strip and/or the variation of section with roll-force, even before the thickness of described band and/or roughness measurement mechanism record, can be compensated.Therefore, especially, milling train according to the present invention is characterised in that at least one actuator equipment is bearing in the position-measurement device of the movable part of the described actuator on the described reach, and manipulation device can dynamically associate the position of the movable part of described actuator and thickness of strip.Better, method according to the present invention is therefore in the operation of rolling, can comprise by at least one actuator, or the described local force measurement that is applied by each actuator of bogie wheel especially, and the described measured value of local power is to the transmission of described manipulation device.
Preferably, can dynamically associate the cross section of each described local power and described band according to manipulation device of the present invention, can be especially for example the relevant database for the treatment of strip by connecting with manipulation device, or by the data relevant with the measurable described band in described milling train exit, for example by can be respectively thickness or roughness measurement value being transferred at least one thickness measure mechanism and at least one roughness measurement mechanism of described manipulation device, pre-determine the cross section.Better, the local power that is applied by each actuator can be different from the local power that is produced by adjacent bogie wheel actuator, and the power sum by all bogie wheel actuators generate under any circumstance all equals thrust, and equals roll-force substantially.
Especially, milling train according to the present invention is characterised in that, it comprises first group of actuator and second group of actuator that can apply each described local power at least one reach, each actuator of first group of actuator can apply described local power at the supporting area between two of described reach adjacent wheels, and second group of actuator comprises can be on described reach one end, in the first round front by described reach carrying, apply first actuator of described local power, and on the other end of reach, take turns the back at last that is carried by described reach, apply second actuator of described local power.In other words, second group of actuator comprises two actuators, first and second actuators for example, and it is positioned on the difference end of reach separately, and the unique bogie wheel of direct neighbor, and described first group actuator applies described local power respectively between two adjacent wheels.Therefore, in the first embodiment, if reach comprises n wheel, can for example comprise first group n-1 actuator according to milling train of the present invention, and second group described two actuators.
In second embodiment, especially, milling train according to the present invention is characterised in that each actuator can be taken turns both sides by one of described reach carrying at least one reach, apply described local power.According to second embodiment, if reach comprises n wheel, thereby milling train will comprise n actuator, and each actuator can apply described local power in same both sides of taking turns.
Better, described bogie wheel actuator particularly can be to the hydraulic jack of the regulating command real time reaction that sent by described manipulation device, and it comprises a movable part, and an end of movable part ends at a supporting device of the described reach of direct supporting.In addition, especially, each actuator can separately be handled and can be received at least one independently regulating command of for example sending from described manipulation device, and generates the component of rolling necessary described roll-force.Preferably, can apply local power at two reach simultaneously according to actuator of the present invention.For example, especially, two row's bogie wheels of last assembly, can be along the described direction that is basically perpendicular to band, activated by directly acting on described two a plurality of bogie wheel actuators of arranging each reach of each bogie wheel separately, and act on the bogie wheel actuator quantity on the reach of described two row's bogie wheels simultaneously, equal the quantity of single wheel at least.
Especially, according to described first embodiment, the single actuator that is made of first and second groups of actuators can act on each reach of two row's bogie wheels simultaneously, and two row's bogie wheels for example respectively comprise n+1 bogie wheel actuator of described two row's actuators.Equally, according to described second embodiment, single actuator can act on each reach of two row's bogie wheels simultaneously, and two rows for example respectively comprise n bogie wheel, thereby can be activated by n bogie wheel actuator of described two row's actuators since then.
Preferably, described actuator is or comprises the hydraulic jack of hollow body, the piston that comprises a bar is mobile therein, piston one end is stopped by a supporting device, described supporting device is used for especially by directly being bearing in described reach, apply local power at least one reach, described piston is characterised in that, at least its head has the cross section (for example rectangle) of elongating along the band direct of travel, this moment, described hydraulic jack was installed in the milling train, and described supporting device has complimentary geometries and is complementary with the geometry of described reach.
Jack according to the present invention is in described cross section that the band direct of travel elongates, the traditional jack that comprises circular cross-section compared with use, can greatly increase the piston cross-section that hydraulic coupling applies the described jack on it better, for two contiguous actuator that have uniform distances along reach length, the circular cross-section of tradition jack must reduce, could be basically perpendicular on the described direction of band travel plane, enter the space arranged of each wheel top.Therefore, the pressure that the described elongation cross section of described jack allows to reduce, but namely less than being the jack applied pressure of feature with circular jack, apply described local power.Than this pressure that traditional jack reduces, the circulation that allows limiting element cost and oil plant to generate and distribute especially.Its also allow to be limited in jack itself with and sealing device in pressure, and therefore reduce the withstand voltage cross section of described jack and reduce the risk that its joint leaks.For example, according to 20 roller mills of the present invention, can be by 7 hydraulic jack of elongating the cross section, under the pressure that 26.106 handkerchiefs (260 bar) is provided, apply 1400 tons of roll-forces, be pressure that the traditional milling train of feature will need 130.106 handkerchiefs (1300 bar) with the traditional jack that has circular cross-section this moment.
Preferably, the reach of bogie wheel according to the present invention is characterised in that especially, it comprises a plurality of first supporting areas that applied described local power by described actuator thereon, be called as local power supporting area, and a plurality of second supporting areas that are used for supporting described bogie wheel, be called as the wheel supporting area.Especially, described reach comprises described power supporting area and described alternating segments of taking turns supporting area.Especially, the described wheel can rotate freely with respect to roller bearing.Better, each takes turns supporting area or each power supporting area can comprise a cross section, has littler inertia than the supporting area cross section around it.
In addition, reach according to the present invention is characterised in that especially, and each is taken turns supporting area and can comprise and take turns first surface in contact and second surface, and described second surface is in reach outside direction raised surface, separates or separates with first surface.Preferably, the supporting area of respectively taking turns of described second embodiment comprises described second convex surfaces, and better, described second convex surfaces allows respectively to take turns rotating shaft and tilts with respect to the wheel reach.
Especially, reach according to the present invention is characterised in that it comprises dismountable rotation chock, and each rotates in the otch that chock is installed in described reach, is used for weakening the rigidity of described reach, and each chock also allows wheel to rotate freely.Especially, the quantity of chock, and the therefore quantity of otch, equal the wheel quantity by described reach support, each chock comprises that belonging to described takes turns supporting area and be used for and the described described first surface that contacts of taking turns, and be used for the second surface that contacts with described otch, and for example, with a part of reach of chock complementation.Especially, described each chock is identical and have can be by the shape that intersects to form of vertical roller and described reach, and this moment, roller was presented as a solid roll of horizontal location.Each otch of described reach allows described reach bending, and when described otch and described chock were installed each other, the cooperation between it allowed described rotating freely of taking turns.In addition, in order to alleviate the friction between described chock and the described reach, especially, described reach is characterised in that it comprises lubricating oil supply pipe network on described another surface of taking turns supporting area and can contact with described otch.Equally, described chock comprises at least one oil duct that can extend described oil supply pipe network especially, thereby allows the contact surface of chock-reach is lubricated.
Preferably, the method according to this invention is characterised in that especially, described rolling before, receive another preset initial order at least by another actuator at least, and according to described another described another actuator in preset initial order location.Described preset initial order and each other preset initial order are used for allowing to obtain the target cross section of milling train exit band separately.Especially, described preset initial order is a position command, and described other preset initial order is stress instruction.Better, described manipulation device is responsible for the described preset initial order of transmission and described other preset initial order especially.And, described manipulation device can carry out related to the preset initial order of an actuator and the preset initial order of at least one adjacent actuators especially, described adjacent actuators for example applies described local power at a local power supporting area, and described local power supporting area and described actuator apply the local power supporting area direct neighbor of described local power thereon.
Better, described manipulation device comprises the bar of at least one actuator or at least one position sensor of hydraulic jack piston especially, described position sensor is used for being equipped in described actuator, and the energy fore-and-aft motion transmits the measured value of described bar and the variation of described piston position respectively before rolling or in the operation of rolling, and at least one hydrostatic sensor of described jack is used for being equipped at least one actuator, and can measure the pressure variation of the hydraulic fluid of supplying with described jack and transmit this measured value to described manipulation device.Especially, each actuator can be equipped described position sensor and described pressure sensor.According to the described change measure of position and/or pressure, described manipulation device energy operated actuator, thus especially can keep constant described pressure or constant described position.Better, milling train according to the present invention and milling method according to the present invention are especially, especially pass through the described hydrostatic sensor of each actuator to rolling force measurement, and the thickness measure of in addition carrying out in the milling train exit by described thickness measure mechanism, allow control and compensation to milling train seat deflection separately.Therefore, the described manipulation device of milling train according to the present invention especially, especially by described pressure or the position sensor deflection of the described milling train seat of dynamic compensation in real time, and the variation of compensation thickness of strip and section, described skew effect is that the distortion that produces is not wished in the working roll gap under roll-force changes.
In the whole operation process of strip-rolling, especially, each actuator is accepted the adjusting circulation of regulating command in real time, thereby the gap that target cross section and milling train outlet are recorded between the cross section minimizes.Preferably, at least two actuators of same row's bogie wheel of last assembly can obtain Position Control by described manipulation device, and receive described regulating command and preset initial order.Better, the controlled actuator of described two positions is positioned at a not end of wheel of described reach separately especially, and, poor for fear of too big local power, can via described regulating command by described manipulation device handle two in abutting connection with local power, be limited in having relatively poor less than 20% local power.
Description of drawings
The exemplifying embodiment and the embodiment that provide by the following drawings will help to understand the present invention better.
Fig. 1 is according to 20 roller mill front elevation examples of prior art.
Fig. 2 is according to 20 roller mill profile examples of prior art.
Fig. 3 is according to 20 roller mill exemplifying embodiments (profile) of the present invention.
Fig. 4 is according to 20 roller mill exemplifying embodiments of first embodiment of the invention.
Fig. 5 is according to 20 roller mill exemplifying embodiments of second embodiment of the invention.
Fig. 6 is according to reach exemplifying embodiment of the present invention.
Fig. 7 is according to the present invention includes a reach exemplifying embodiment of taking turns.
The specific embodiment
For example, Fig. 1 illustrates the profile according to the milling train of prior art.Supported by two backing rolls 2 with treating the working roll 1 that strip contacts, backing roll itself is supported by three backing rolls 3, and backing roll itself is supported by four row's bogie wheels 4, and each is arranged bogie wheel and constitutes by being installed in unique a plurality of bogie wheels of taking turns on the reach 41.The centrifugation systems that is activated by tooth bar 62 guarantees that same row respectively takes turns 4 rotating shaft with respect to reach 41 location.
Fig. 2 illustrates the milling train front elevation according to prior art.Jack 7 by centrifugal camming, can generate and apply roll-force in the end of the reach 41 that supports six wheels 4 of a row.Seven actuators 6 can activate tooth bar 62, and tooth bar itself can guarantee that same row respectively takes turns 4 rotating shaft with respect to the location of reach 41.Therefore single unit system according to prior art comprises a plurality of jack 7, its role is to generate and apply roll-force at the reach 41 of six wheels 4 of a row, and be independent of a plurality of actuators 6, as for described actuator, it can guarantee that same row respectively takes turns 4 rotating shaft with respect to the location of reach 41.
Fig. 3 illustrates the profile according to 20 roll shape multi-roll mills of the present invention, and this milling train is equipped in the cold-rolling equipment for the treatment of strip 9.Milling train according to the present invention especially comprises:
Assembly on – ten rolls, be positioned at the cavity of the milling train seat 5 of described milling train, be in the top of the travel plane P of described band 9, and ten assembly (not shown) under the roll, be positioned at another cavity of the milling train seat of described milling train, face last assembly, and be in the below of the travel plane P of described band 9, described up and down assembly is used for cooperation each other, thereby band 9 is born can allow the roll-force that is rolled;
Each assembly of – comprises that by being used for and the working roll 1 for the treatment of that strip 9 contacts that two backing rolls 2 support, backing roll itself is supported by three backing rolls 3, and backing roll itself is supported by four row's bogie wheels 4;
– respectively arranges bogie wheel 4 and comprises a plurality of bogie wheels 4 that are installed on the wheel reach 41;
At least one row's bogie wheel 4 of the last assembly of – on the direction of the travel plane P that is basically perpendicular to band 9, activated by a plurality of bogie wheel actuators 42;
It is characterized in that:
Each actuator 42 of – bogie wheel, can be along the described direction that is basically perpendicular to the travel plane P of band 9, directly the reach 41 at described row's wheel applies a local power, especially, each actuator for example comprises a hydraulic jack, jack comprises the hollow body 421 of mobile piston 433 therein, the end that described piston is rod ends at supporting device 423, described supporting device is used for directly contacting with described reach 41, thereby the power of described jack is transferred to described reach 41, perhaps, according to another special embodiment, described hollow body 421 can directly support the described supporting device 423 that contacts with described reach 41 for directly, and the described piston of described jack is drawn towards the opposite direction of described supporting device 423, be opposed to the fixed structure of milling train seat 5, thereby allow to apply described local power by activating described jack at described reach 41;
– can apply the quantity of the bogie wheel actuator 42 of described local power at the reach 41 of same row's bogie wheel 4, equals the quantity of described same row's bogie wheel 4 at least;
It comprises manipulation device 8 –, described each actuator 42 of individual operation especially, thus the power sum that each actuator 42 by milling train is applied equals thrust, and described thrust equals described roll-force substantially.Therefore described manipulation device 8 can control each actuator 42 independently, for example generates the control signal that activates described actuator by each actuator 42, and described actuator can generate described local power and be used for being applied on the described reach 41.Especially, described manipulation device 8 can be from least one geometric shape measuring value of milling train exit band, generate described control signal, for example be by carrying out at least one thickness measure mechanism 81 of the described band of thickness measure to the described band in milling train exit at least, and by carrying out the measured value of the described thickness of strip of at least one roughness measurement mechanism 82 acquisition of the described band of roughness measurement at least to the described band in milling train exit, described each thickness and flatness measuring mechanism can be distinguished the fore-and-aft motion 8 described thickness of transmission and flatness measured values especially.
Fig. 4 illustrates 20 roller mill front views according to first embodiment of the invention.As shown in Figure 3, milling train comprises three backing rolls 3, is used for supporting the backing roll of energy support works roller, and row's bogie wheel 4 is installed on the reach 41.For example, especially, every row's wheel of described reach comprises six bogie wheels 4, and described milling train comprises seven actuators 42, be used at described reach separately, especially by supporting device 423, for each actuator that is used between two bogie wheels, applying described local power, apply 1/6 the local power that equals roll-force (or more properly thrust) substantially, and near each actuator that is used for unique bogie wheel, applying described local power, for example for laying respectively at reach one end and thus around two actuators of whole bogie wheel, apply 1/12 the local power that equals roll-force (or more properly thrust) substantially.According to this first embodiment, each take turns 4 two supporting devices 423 that belonged to an actuator 42 respectively around.Therefore, according to this first embodiment, n+1 actuator 42 can apply described local power respectively on a reach that comprises n wheel 4.Especially, each actuator can comprise the hydraulic jack 421 that can push described supporting device 423 to described reach 41.In this case, actuator is particularly including hydraulic jack, and the movable piston 422 of equipment bar can move in jack, and is stopped by described supporting device 423 on the direction of described reach 41.Especially, thrust is absorbed by the structure of milling train seat 5.Therefore each hydraulic jack can generate and apply the component of roll-force via the described supporting device 423 that contacts with described reach 41 on the reach 41 of row's wheel 4.Especially, manipulation device 8 can make described roll-force be distributed on the different actuator of milling train 42, thereby guarantees the control function to the cross section.Especially, distribution or the segmentation of described roll-force on each actuator can be realized that described fluid is used for being distributed in each hydraulic jack via described fluid distribution network, thereby activates each jack by described control device 8 by the hydraulic coupling of controlling and control fluid.To this independent thickness that therefore allows conditioning strip material on the one hand of controlling of described jack, correct convexity and the distortion of working roll by acting on described reach on the other hand.
Fig. 5 illustrates 20 roller mill front elevations according to second embodiment of the invention.The milling train of this second embodiment equals the described milling train of Fig. 4 according to the present invention, and unique difference is that it comprises the actuator quantity 42 that equals to take turns 4 quantity.For example, reach 41 comprises especially, and every row's wheel has six bogie wheels 4, and milling train comprises six actuators 42, is used for respectively especially applying the local power that equals 1/6 roll-force substantially by an end 423 on described reach.According to this second embodiment, each take turns 4 supporting devices 423 that belonged to unique actuator 42 respectively around.Therefore, according to this second embodiment, n actuator 42 can be on a reach that comprises n wheel 4, especially on described reach 41 by its supporting device 423 around the wheel both sides, apply described local power respectively.Especially, each actuator 42 can for example by the hydraulic pressure propulsive force that is provided by described hydraulic jack is provided, directly promotes its supporting device 423 to described reach 41, thereby apply described local power on described reach 41.Especially, propulsive force is applied in respectively takes turns both sides, and described propulsive force is by the structure absorption of milling train seat 5.Milling train according to described second embodiment, therefore can comprise n jack by n wheel of every row, the effect of each jack is to generate and apply at the reach 41 of each row's wheel 4 by described supporting device 423 component of roll-force, thereby make described roll-force component sum, for example described local power sum equals described roll-force substantially.Describe as Fig. 4, manipulation device 8 especially by the supercharging and distribution hydraulic fluid of control to each jack, can be managed distribution and the segmentation of described roll-force on different actuators 42, thereby guarantee the described control function to the cross section.
Fig. 6 illustrates the exemplifying embodiment according to reach 41 of the present invention, and this reach is used in particular for cooperating with described actuator, thereby allows conditioning strip material thickness on the one hand, effectively corrects work roll crown and distortion on the other hand.Described reach 41 comprises a plurality of first supporting areas especially, be called as local power supporting area 413, these local power supporting areas are used for the described supporting device 423 of local at least contact actuator according to the present invention separately, and a plurality of second supporting areas, be called as wheel supporting area 414, the described supporting area of taking turns is used for supporting and guiding described the wheel.
Especially, each is taken turns supporting area 414 and comprises and take turns first surface in contact 414a and second surface 414b, described second surface 414b is convex surfaces, separate or separate with described first surface, and when described reach 41 is crooked, allow described the wheel around its rotating shaft is unconstrained to rotate freely.In addition, described reach 41 is also referred to as the rotation chock particularly including detachable chock 411, and each chock can be installed in the otch 412 with the described reach of its coupling.Especially, each otch is used for weakening vertical rigidity of described reach 41, and each chock has the geometry complimentary geometries with described otch.Especially, the complementarity of described otch 412 and described chock 411 when described chock is installed in the described otch 412, allows to take turns respectively taking turns that supporting area 414 contact and rotate freely with described.
Preferably, the quantity of otch 412 and chock 411 equals the quantity by the wheel of described reach 41 supports, each chock 411 comprises that belonging to described takes turns supporting area 414 and be used for and the described described first surface 414a that contacts that takes turns, and be used for another surface of contacting with the described otch 412 of described reach 41, for example, with a part of reach of described chock 411 complementations.Preferably, each chock 411 of described reach 41 is characterised in that its shape is intersected to form by two rollers, and the axle of described roller is positioned at two vertical planes.
Especially, described reach 41 also comprises lubricating oil supply pipe network 415, its can be on wheel supporting area 414 and the surface of the otch 412 that can contact with described another surface of described chock 411 transport lubricating fluid.Better, described pipe network 415 especially allows the interior conduit via each reach 41, transports described lubricating fluid along described whole reach, and for example up to surface that described reach 41 contacts with other surface that does not belong to described reach 41.Better, chock 411 and reach 41 be particularly including the pipeline that allows described pipe network 415 is extended to lubrication groove, and described lubrication groove can be at described first surface 414a, and the described lubricating fluid of distribution in the bearing of one or more bogie wheel 4 of supporting.
Fig. 7 illustrates the exemplifying embodiment according to reach of the present invention, for example, it comprises and is installed in described wheel 4 of taking turns on the supporting area 414, preferably, this is taken turns and comprises convex outer surface (for example shown in Figure 6 described second surface 414b), thereby make each intersection of convex outer surface and local power supporting area comprise release groove, when described reach 41 free bends, this release groove guarantees described supporting area 414 and the described free space that contacts between 4 of taking turns of taking turns.For example described convex outer surface is characterised in that radian has the described long radius of taking turns 4 rotations of permission, for example equals 2000mm.Equally, can absorb the described chock 411 from strip-rolling wheel stress especially, equally also can be against the reach otch complementary with it 412 rotations.
In a word, have a plurality of advantages according to milling train of the present invention and milling method compared with existing milling train and milling method, and:
It allows to reduce the mechanical complexity of milling train –, on the one hand by using identical actuator to generate and/or apply roll-force and convexity control, allow to use hydraulic jack on the other hand, replace very complicated having tooth bar, having centrifugal cam, or have the crown control device of voussoir;
It has guaranteed few reaction time –, permission is carried out true manipulation the in real time by manipulation device, the band geometry that described manipulation device can record in the milling train exit according at least one roughness measurement mechanism and at least one the thickness measure mechanism by band is controlled actuator;
– especially in the use of monolithic devices milling train seat, its permission even before being measured by thickness and flatness measuring mechanism, compensation and the thickness of strip of milling train seat skew correlation and the variation of section, and thereby bring thickness of strip and the flatness of more closing specification;
– is especially in the use of " separately housing " type milling train seat, described " separately housing " type milling train seat may change the described separately relative position of the two halves milling train seat of housing type milling train seat of formation with the operation of rolling, it also allows even before being measured by roughness measurement mechanism, the variation of compensation and the band section of milling train seat skew correlation, and thereby bring the strip flatness of more closing specification;
– is by allowing compensating deflection, it also allows, even under the situation that does not have thickness and/or roughness measurement value, according to the stress that on described actuator, records according to rule or default list, position or power are corrected, thereby improve by the geometry of strip;
It allows to control the assignment profile of roll-force on different wheels –;
It allows to enter better assembly – when the described assembly of maintenance, and can use the roller of diameter in a big way, reason is that roll assembly is with respect to the ability that moves both vertically of following roll assembly, only be subject to the jack stroke of for example taking turns actuator, well known by persons skilled in the art to have the opening that tooth bar or the centrifugal device of controlling of voussoir allow much bigger and described stroke allows the aperture efficiency of assembly up and down.
Claims (17)
1. one kind is used for equipment for the cold rolling multi-roll mill for the treatment of the equipment of strip (9), and described milling train comprises:
-upward assembly and assembly down, the described assembly of going up comprises the roll that is positioned at described band travel plane (P) top, described assembly down comprises the roll that is positioned at described band travel plane (P) below, described upward assembly and described assembly down are used for cooperation each other, thereby described band (9) is applied roll-force;
-each described assembly comprises working roll (1), described working roll (1) is used for and treats that strip (9) contacts and supported by backing roll (2), described backing roll (2) itself is supported by backing roll (3), and described backing roll (3) itself is supported by many rows bogie wheel (4);
-respectively arrange bogie wheel and comprise a plurality of bogie wheels (4) that are installed on wheel reach (41);
-activated by a plurality of bogie wheel actuators (42) in the direction that is basically perpendicular to band travel plane (P) about described at least one row's bogie wheel of going up assembly;
And it is characterized in that:
-each bogie wheel actuator (42) can directly apply local power at the wheel reach (41) of described row's wheel along the described direction that is basically perpendicular to band travel plane (P);
-the quantity that can apply the bogie wheel actuator (42) of described local power at the reach (41) of mutually same row's bogie wheel equals the quantity of same described row's bogie wheel (4) at least;
-described milling train comprises manipulation device (8), and described manipulation device (8) can be handled each described actuator (42), thereby the local power sum that each actuator by milling train is applied equals thrust, and described thrust equals described roll-force substantially.
2. milling train according to claim 1 is characterized in that, described manipulation device (8) can dynamically associate the cross section of each described local power and described band.
3. according to claim 1 or 2 each described milling trains, it is characterized in that, it comprises first group of actuator and second group of actuator, described first group of actuator and second group of actuator can apply described local power respectively at least one reach (41), each actuator of described first group of actuator can apply described local power at the supporting area between two of described reach adjacent wheels, and described second group of actuator comprises first actuator and second actuator, described first actuator can be on described reach (41) one ends, take turns the front at first that is carried by described reach and apply described local power, described second actuator can be on the other end of reach (41), take turns the back in last of being carried by described reach and apply described local power.
4. according to claim 1 or 2 each described milling trains, it is characterized in that each actuator (42) can be gone up at least one reach (41), apply described local power in wheel (4) both sides by described reach (41) carrying.
5. according to each described milling train of claim 1 to 5, it is characterized in that same actuator (42) can apply described local power at two reach (41) simultaneously.
6. according to each described milling train of claim 1 to 5, it is characterized in that, described actuator (42) is the hydraulic jack that comprises hollow body (421), the piston (422) of equipment bar can move in described hollow body (421), described piston has an end and ends at bar in the supporting device (423), described supporting device (423) is used for being bearing at least one reach (41), described piston is characterised in that its head has the cross section of elongating along the band direct of travel at least.
7. according to each described milling train of claim 1 to 6, it is characterized in that, at least one actuator is equipped with for the measurement mechanism for the position that rests on the movable part on the described reach of measuring described actuator, and described manipulation device (8) can dynamically associate the thickness of the position of the movable part of described actuator and described band.
8. milling train according to claim 7 is characterized in that, the deflection of the described milling train seat of described manipulation device (8) energy real-Time Compensation.
9. one kind is equipped in according to the reach (41) on each described milling train of claim 1 to 8, it is characterized in that, described reach (41) comprising: a plurality of first supporting areas, described local power puts on described a plurality of first supporting area, and described a plurality of first supporting areas are called as local power supporting area; And a plurality of second supporting areas, described a plurality of second supporting areas are used for supporting described bogie wheel (4), are called as the wheel supporting area.
10. reach according to claim 9 (41) is characterized in that, each is taken turns supporting area and comprises and described wheel the (4) first surface in contact and second surface, and described second surface is the convex surfaces of separating or separating with described first surface.
11. according to claim 9 or 10 each described reach (41), it is characterized in that, described reach comprises dismountable rotation chock, each described chock is installed in the rigidity that is used for weakening described reach in the otch of described reach on the one hand, allows wheel (4) to rotate freely on the other hand.
12. reach according to claim 11 (41), it is characterized in that, the quantity of described chock equals the wheel quantity by described reach (41) carrying, and each chock comprises that belonging to described takes turns supporting area and be used for and the described second surface of taking turns the described first surface that contacts and being used for contacting with described otch.
13. reach according to claim 12 (41) is characterized in that, described reach comprises lubricating oil supply pipe network, and described lubricating oil supply pipe network can be delivered to lubricating oil on the described surface of taking turns supporting area and described otch.
14. treat the milling method of strip by rolling equipment for one kind, described milling method is characterised in that, may further comprise the steps:
-described band is begun rolling before: by being used for applying at least one actuator about bogie wheel (4) (42) of local power at least one reach (41) of row's bogie wheel, receive the preset initial order, and described actuator (42) activates according to described preset initial order;
-during described band rolling:
-by at least one thickness of strip measuring mechanism (81), measure the thickness at the described band in milling train exit at least;
-especially by at least one strip flatness measuring mechanism (82), measure the flatness at the described band in milling train exit at least;
-by each thickness measure mechanism (81) and each roughness measurement mechanism (82), fore-and-aft motion (8) transmits each thickness measurements and each roughness measurement value respectively;
-by sending default regulating command to described actuator (42), according to described at least thickness and/or roughness measurement value, handle the actuating of at least one actuator by described manipulation device (8).
15. milling method according to claim 14 is characterized in that, before rolling, receives another preset initial order at least by another actuator at least, and according to described another described another actuator in preset initial order location.
16. according to claim 14 or 15 each described milling methods, it is characterized in that, carry out related to the regulating command of actuator and the regulating command of at least one adjacent actuators.
17. according to each described milling method of claim 14 to 16, it is characterized in that described method comprises: in the operation of rolling, measure the described local power that is applied by the wheel actuator.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11290072.5 | 2011-02-02 | ||
| EP11290072 | 2011-02-02 | ||
| PCT/EP2011/054058 WO2012103961A1 (en) | 2011-02-02 | 2011-03-17 | Equipment and method for cold-rolling a metal strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103338873A true CN103338873A (en) | 2013-10-02 |
| CN103338873B CN103338873B (en) | 2015-07-15 |
Family
ID=44625504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180066778.7A Active CN103338873B (en) | 2011-02-02 | 2011-03-17 | Equipment and method for cold-rolling a metal strip |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2670540B1 (en) |
| CN (1) | CN103338873B (en) |
| WO (1) | WO2012103961A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367324A (en) * | 2015-12-23 | 2018-08-03 | 株式会社Posco | Correction system and antidote |
| CN110944763A (en) * | 2017-07-21 | 2020-03-31 | 诺维尔里斯公司 | Low pressure rolled micro-textured surfaces |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016028586A1 (en) | 2014-08-18 | 2016-02-25 | Flexible Steel Lacing Company | Conveyor belt fastener and method of manufacture |
| USD808253S1 (en) | 2014-08-18 | 2018-01-23 | Flexible Steel Lacing Company | Fastener for a conveyor belt |
| CN109382410A (en) * | 2017-08-14 | 2019-02-26 | 宁德时代新能源科技股份有限公司 | Rolling device |
| CN112207139B (en) * | 2020-11-04 | 2023-04-18 | 攀枝花学院 | Method for calculating rolling force of six-roller temper mill |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1939181A1 (en) * | 1969-08-01 | 1971-02-18 | Sundwiger Eisenhuette Masch Fa | Rolling strip and plate to even thickness |
| SU1447447A1 (en) * | 1987-01-16 | 1988-12-30 | Челябинский Политехнический Институт Им.Ленинского Комсомола | Arrangement for regulating the bending of rolling mill rolls of multiroll mill |
| EP0476905A2 (en) * | 1990-09-19 | 1992-03-25 | Hitachi, Ltd. | Shape control in a strip rolling mill of cluster type |
| EP0580292A1 (en) * | 1992-07-20 | 1994-01-26 | T. Sendzimir, Inc. | Additional profile control for cluster mills |
| CN101743073A (en) * | 2007-07-16 | 2010-06-16 | Sms西马格股份公司 | Roller device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB946661A (en) * | 1959-02-16 | 1964-01-15 | Hans Brucker | Improvements in or relating to rolling machines |
| BE634026A (en) | 1962-06-26 | |||
| DE4131571C2 (en) | 1991-09-23 | 1994-11-10 | Sundwiger Eisen Maschinen | Roll support device for correcting the roll gap in a multi-roll mill stand for strips |
| DE10027865C1 (en) | 2000-06-06 | 2001-07-19 | Sundwig Gmbh | Rolling mill has working rollers supported by support rollers and an adjusting device connected to a supporting axis |
| DE10202154A1 (en) | 2002-01-22 | 2003-07-31 | Sms Demag Ag | More roll mill |
-
2011
- 2011-03-17 WO PCT/EP2011/054058 patent/WO2012103961A1/en active Application Filing
- 2011-03-17 CN CN201180066778.7A patent/CN103338873B/en active Active
- 2011-03-17 EP EP11709922.6A patent/EP2670540B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1939181A1 (en) * | 1969-08-01 | 1971-02-18 | Sundwiger Eisenhuette Masch Fa | Rolling strip and plate to even thickness |
| SU1447447A1 (en) * | 1987-01-16 | 1988-12-30 | Челябинский Политехнический Институт Им.Ленинского Комсомола | Arrangement for regulating the bending of rolling mill rolls of multiroll mill |
| EP0476905A2 (en) * | 1990-09-19 | 1992-03-25 | Hitachi, Ltd. | Shape control in a strip rolling mill of cluster type |
| EP0580292A1 (en) * | 1992-07-20 | 1994-01-26 | T. Sendzimir, Inc. | Additional profile control for cluster mills |
| CN101743073A (en) * | 2007-07-16 | 2010-06-16 | Sms西马格股份公司 | Roller device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367324A (en) * | 2015-12-23 | 2018-08-03 | 株式会社Posco | Correction system and antidote |
| CN108367324B (en) * | 2015-12-23 | 2020-03-31 | 株式会社Posco | Correction system and correction method |
| US10994316B2 (en) | 2015-12-23 | 2021-05-04 | Posco | Straightening system and straightening method |
| CN110944763A (en) * | 2017-07-21 | 2020-03-31 | 诺维尔里斯公司 | Low pressure rolled micro-textured surfaces |
| CN110958918A (en) * | 2017-07-21 | 2020-04-03 | 诺维尔里斯公司 | System and method for controlling flatness of metal substrate by low-pressure rolling |
| CN110944763B (en) * | 2017-07-21 | 2022-05-31 | 诺维尔里斯公司 | Low pressure rolled micro-textured surfaces |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103338873B (en) | 2015-07-15 |
| EP2670540A1 (en) | 2013-12-11 |
| EP2670540B1 (en) | 2016-02-10 |
| WO2012103961A1 (en) | 2012-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103338873B (en) | Equipment and method for cold-rolling a metal strip | |
| CA2652878C (en) | Roll stand and method for rolling a rolled strip | |
| US20070089470A1 (en) | Roll stand with axially displaceable rolls | |
| CN101961728A (en) | Milling train and tandem mill with this milling train | |
| US8991231B2 (en) | Roll stand | |
| CN105964691B (en) | A kind of new ten roll steel plates cold-rolling mill structure | |
| CN107252822A (en) | A kind of eighteen-high mill | |
| CN106140822B (en) | A kind of position feedback device and its position feedback control method of multi-roll mill working roll | |
| CN101961729B (en) | Rolling mill and tandem rolling mill having the same | |
| CN106269913B (en) | The method that work roll shifting milling train prevents strip running deviation | |
| RU2534705C1 (en) | Stand with integrated bending and shifting devices for loaded working rolls with large opening between them | |
| CN102481606A (en) | 4-roll, 6-roll, 18-hs roll stand having a cassette-type design | |
| CN203830418U (en) | Supporting roller horizontal shift adjusting locking device of rolling mill | |
| WO1987003227A1 (en) | Rolling mill | |
| CN101282796B (en) | Roll bending device and rolling mill base equipped with the device | |
| CN101477353B (en) | Computing method for roll profile of steckel mill | |
| CN101116873A (en) | Working roll moving device | |
| KR101151248B1 (en) | Roll stand | |
| CN2686748Y (en) | High rigidity octa-roll plate-strip rolling mill | |
| RU2343024C2 (en) | Three-high stand of lengthwise rolling | |
| CN213436327U (en) | Roller box interval real-time monitoring system | |
| US8276422B2 (en) | Roller device | |
| ITUD960099A1 (en) | IN-LINE GRINDING DEVICE FOR LAMINATION CYLINDERS AND / OR DRIVE ROLLS | |
| CN103521530A (en) | Plate and stripe rolling mill and plate and stripe edge shape control method | |
| CN211191411U (en) | Ten-high rolling mill roll system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: French Savini Maher Patentee after: PRIMETALS TECHNOLOGIES FRANCE S.A.S. Address before: Saint Etienne, France Patentee before: SIEMENS VAI METALS TECHNOLOGIES S.A.S. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: French Savini Maher Patentee after: CLECIM Address before: French Savini Maher Patentee before: Clecim Address after: French Savini Maher Patentee after: Clecim Address before: French Savini Maher Patentee before: PRIMETALS TECHNOLOGIES FRANCE S.A.S. |