CN109226257A - A kind of method and its production line of plate steekle mill rolled plate - Google Patents

Abstract

The invention discloses the methods and its production line of a kind of plate steekle mill rolled plate.A kind of method of the plate steekle mill rolled plate, including heating, slab oxide are removed, intermediate base rolls or finish rolling is rolled up in heavy plate rolling, furnace, strip cools, strip coiling step.The plate steekle mill rolled plate production line.The present invention passes through reasonable device configuration and process flow, production line and milling train quantity are greatly simplified, shorten production line length, not only the wide cut hot-rolled band roll bending and the relatively thin coils of hot-rolled steel of thickness limit of axial rolling technique production high quality can be used, but also the cross rolling process production cut deal and slab up to 1.6 times or more more wider than the wide cut hot-rolled band roll bending can be used；It can be suitable for the rolling of different wide strip roll bendings, improve blank utilization rate, rolled products type multiplicity, rolling quality is high and stablizes.

Description

A kind of method and its production line of plate steekle mill rolled plate

Technical field

The invention belongs to metallurgy rolling technical fields, and in particular to a kind of method and its life of plate steekle mill rolled plate Producing line.

Background technique

The characteristics of Modern Steckel mill production line is to be respectively configured one in the entrance and exit side of reversible four-high mill Coiler furnace.It can enter in coiler furnace after strip is thinned during the rolling process and be kept the temperature and stored, implement reciprocal rolling, from And reduce the temperature drop of strip.Now band steekle mill not only rolls the special steels steel grade such as stainless steel, is also used for rolling carbon steel, low conjunction Other steel grade products such as Jin Gang.Steekle mill production line is relatively saved compared to hot continuous rolling production line investment, occupied area is smaller, yield It is more flexible with kind.Existing steekle mill production-line technique and layout pattern mainly have the five kinds of specific manifestations of following three type, Type is respectively as follows: that steekle mill is coarse-fine to roll type, roughing+steekle mill finish rolling type, rolls+finish rolling type in roughing+steekle mill, and five kinds Specific manifestation is as follows:

I, steekle mill is coarse-fine rolls type

1) the steekle mill production line of single chassis layout pattern, as the four-roller Steckel mill of the 1 attached edger roll of frame band, Roughing and finish rolling all carry out in a rack, and product is mainly hot-rolled coil.Rolling pass is more, and the head of strip, tail Portion of portion enters the number of coiler furnace only with the half at middle part, and head, tail portion temperature drop are big, and rolling is very big compared with thin gauge difficulty, Surface quality of strips is not high.

2) the steekle mill production line of Stand Mill tandem compact Layout pattern, as four roller reversible steckel rolling of Stand Mill Machine forms compact tandem arrangement, forms double single machines its biggest characteristic is that two horizontal frames are placed between two coiler furnaces The composite technology effect of frame reversible rolling and tandem rolling tension force.Compared with conventional individual frame steekle mill, there are two big advantages: its One, being greatly shortened the rolling cycle is conducive to improve efficiency, and shortening reduces 50% band when coiler furnace inside holding stops Between, efficiently reduce the secondary surface oxidation of band；Second, compact tandem forms continuous rolling relationship, between two racks and milling train and Tension can be generated between coiler furnace, be conducive to control panel shape with single chassis ratio.But roughing and finish rolling are same still in two racks Shi Jinhang, in order to guarantee milling train in the larger mill speed of finish rolling stage final pass, the specified roll torque of milling train configuration compared with It is small；Biggish roll torque required for the biggish drafts of each passage of rough rolling step and roughing, roughing passage cannot be taken into account It is more；Rolling is still lower compared with thin gauge deformation temperature, and difficulty is still larger, and surface quality of strips is not high.

II, roughing+steekle mill finish rolling type

1) the steekle mill production line of+1 frame steekle mill finish rolling pattern of 1 frame roughing mill of 1+1, as 1 frame band are attached vertical + 1 frame four-roller Steckel mill of four-roller reversing rougher of roller, roughing are separated with finish rolling function, change and improve product table Face quality；And is conducive to optimization and distributes thick, finishing mill rolling load.But steekle mill reversible rolling passage is more, and strip enters The number kept the temperature in coiler furnace is still more to generate more secondary oxidation iron sheet, and the head of strip, tail portion enter coiler furnace Number only has the half at middle part, and headed, tail portion and middle portion temperature difference are still larger, and rolling is still larger compared with thin gauge difficulty, Surface quality is still undesirable.

2) the steekle mill production line of+2 frame steekle mill finish rolling pattern of 1 frame roughing mill of 1+2, as 1 frame band are attached Four-roller reversing rougher+Stand Mill the furnace for belonging to edger roll rolls up finishing mill, and roughing separates with finish rolling function, when steekle mill essence passage Between reduce half, change and improve product surface quality, improve Strip Shape Control；And be conducive to that optimization distribution is thick, finishing mill rolling is negative Lotus；Rolling time is short, efficiency further increases, and increases relatively thin kind rolling quantity and stability.

III ,+finish rolling type is rolled in roughing+steekle mill

The steekle mill production line of+3 frame finishing mill layout patterns is rolled in+1 frame steekle mill of 1 frame roughing mill of 1+1+3, as + 3 rack mm finishing mill unit of+1 frame four-roller Steckel mill of four-roller reversing rougher of the 1 attached edger roll of frame band, roughing, In roll, finish rolling function separate, improve product size precision, surface quality；And it is more perfect optimize distribution it is thick, in, finishing mill Rolling load increases relatively thin kind rolling quantity and stability.Adapt to the heat such as the narrow stainless steel of production deformation temperature range Rolled steel coils, production efficiency and yield are higher.But since milling train quantity is more, production line length is longer and investment is larger, close to half The level of tandem mill and tandem mill.

Nevertheless, people still have such demand and expectation, it is expected that in milling train quantity few as far as possible, shorter production line Length, while few investment；It is desirable to producing more kinds, higher-quality plate product.It is desired that these are more The kind of sample not only has the special steels steel grades such as common structure steel grade, stainless steel, and there are also advanced high-strength steel kinds；While this A little kinds not only include the coil of strip product of wide cut, and there are also the cut deals and plate product of more wide cut.

Summary of the invention

The first object of the present invention is to provide a kind of method of plate steekle mill rolled plate, be matched by reasonable equipment It sets and process flow, the wide cut hot-rolled band roll bending of axial rolling technique production high quality both can be used；It is raw that cross rolling process can be used again Produce the cut deal and slab up to 1.6 times or more more wider than the wide cut hot-rolled band roll bending.

The first object of the present invention is achieved in that, including A, heating, B, slab oxide are removed, C, intermediate base rolling Or heavy plate rolling, D, furnace roll up finish rolling, E, strip cool, F, strip coiling；

A, it heats, slab is sent into heating furnace and is heated to 1100 DEG C~1280 DEG C temperature ranges, and the slab that heating is completed is gone out On furnace to delivery roller table, B is gone to step；Wherein, slab includes short base and long base；When being heated to be slab using short base, heating Two rows or three rows fill cloth in furnace, single to discharge respectively；When being heated to be slab using long base, the single-line held cloth in heating furnace Material, single discharging；

B, slab oxide is removed, using centralising device adjustment device to after the slab adjustment centering of delivery roller table conveying operation It is sent into slab high pressure water descaling device, slab high pressure water descaling device sprays the oxygen that high pressure water removes slab upper and lower surfaces Compound, and the slab for removing oxide is delivered to slab horizontal mill and carries out slab or intermediate base rolling work；It goes to step C；

C, intermediate base rolling or heavy plate rolling,

C1, heavy plate rolling include:

C101, heavy plate rolling select short base for the slab of heating in step first, secondly by step B to heating after Slab carries out oxide removing processing, then carrying out 90 ° of steerings to slab through slab manipulator through the conveying of step B treated slab U-turn and centering adjustment, keep the width direction of slab consistent with rolling direction；Then it is conveyed into slab horizontal mill and back and forth rolls 3 ~ 7 passages make slab become the slab of 12~50mm target thickness along width of plate slab direction transverse rolling；During the rolling process, pass through The width of slab vertical miller finishing control slab, head, the tail portion to guarantee slab are consistent with middle part rolling width；Slab rolls During system, the descaling jet for opening heavy plate mill laminar flow and descaling device removes secondary oxidation iron sheet, or opens heavy plate mill The laminar flow nozzle of laminar flow and descaling device carries out cooling processing to intermediate base, and intermediate base rolling slab temperature is made to meet TMCP heat engine The finishing temperature requirement of the process distortions temperature and 700 DEG C~1000 DEG C of heavy plate rolling technique of tool rolling, to meet TMCP heat The technique requirement of mechanical press；After completing heavy plate rolling, C102 is gone to step；

C102, slab cool, handling to be delivered to slab control cold charge with a thickness of the slab of 12~50mm through step C101 It sets and cools, slab controlled cooling device carries out uniform water-spraying control cooling, slab controlled cooling device to upper surface, the lower surface of slab The cooling technique requirement for meeting slab TMCP thermo-mechanical rolling, makes slab reach 450 DEG C~1000 DEG C target straightening temperatures, slab After the completion of cooling, C103 is gone to step；

The slab handled through step C102, is delivered to apparatus for correcting and correct straight, length is cut out surely by C103, slab output As slab semi-finished product, C104 is gone to step；

C104, slab finishing, the slab semi-finished product that step C103 is handled are moved steel turnover panel rack from rollgang to cold On bed again under cold bed outlet on roller-way, then subsequent slab finishing area is delivered into, fixed size scissors are carried out to slab semi-finished product It cuts, trimming, cold leveling, inspection, non-destructive testing etc. become slab finished product；

C2, the rolling of intermediate base, select long base for the slab of heating in step first, secondly by step B to heating after Slab carry out oxide removing processing, through step B treated slab is delivered to slab manipulator progress slab centering adjustment, Slab after the completion of centering is adjusted again is conveyed into slab horizontal mill and back and forth rolls 2 ~ 6 passages, slab rolling at thickness Intermediate base less than 35mm, and go to step D and carry out finish rolling；In the intermediate base operation of rolling, is modified and controlled by slab vertical miller The width of making sheet base, head, the tail portion to guarantee the intermediate base rolled out are consistent with middle part rolling width；It opens during the rolling process The descaling jet for opening heavy plate mill laminar flow and descaling device removes the secondary oxidation iron sheet generated on intermediate base, or opens slab and roll The laminar flow nozzle of machine laminar flow and descaling device carries out cooling processing to intermediate base, and the temperature of intermediate base is made to meet 900 DEG C~1150 DEG C furnace roll up finish-rolling process temperature requirement, with meet TMCP thermo-mechanical rolling technique requirement；To winged after intermediate base rolling completion When cutting conveying, slab high pressure water descaling device is closed；D, furnace rolls up finish rolling,

D101, the intermediate base handled through step C2 is transported to flying shear, first the head by base among flying shear shear removal and tail Portion, then convey intermediate base and passed through from the No.1 coiler furnace lower part for closing fire door；Go to step D102；

D102, intermediate base successively bite No.1 furnace volume horizontal mill after No.1 steekle mill manipulator adjusts centering, bite No. two Furnace rolls up horizontal mill；After the strip that intermediate base rolls into comes out from No. two furnaces volume horizontal mills, adjusted through No. two steekle mill manipulators Centering, then by No. two pinch roller scissors clamping conveyings, the fire door through putting down, which enters, is directed at reel jaw in No. two coiler furnaces, in the middle Between when taking the lead insertion reel jaw certain length of the strip that rolls into of base, starting two is batched furnace drum and is rolled with No.1 furnace volume level Machine, No. two furnace volume horizontal mills and synchronous rotary, raising speed, make the reel jaw of No. two coiler furnaces clamp what intermediate base was rolled into Strip end head, reel wrap strip and establish tension；Go to step D103；

D103, No. two pinch roller scissors operations rise to guiding and equalization of strain operating position, the band for being rolled into intermediate base 28 Steel is in No. two coiler furnace inside holdings and rolling；Go to step D104；

D104, when entrance of the tail portion for the strip that intermediate base rolls into close to No. two furnaces volume horizontal mill, No.1 furnace volume level is rolled Machine, No. two furnace volume horizontal mills and the synchronous reduction of speed of No. two coiler furnaces；Go to step D105；

D105, when the tail part of band steel that intermediate base rolls into is rolled to out the roller gap position of No. two furnaces volume horizontal mill, shut down, it is complete It works at a time steckel rolling system, goes to step D106；During a time steckel rolling, furnace rolls up vertical miller refine adjustment control Make the width of intermediate base；Go to step D106；

No. two D106, control pinch roller scissors clamp the strip rolled by intermediate base immediately, roll up horizontal mill and two with No. two furnaces Then synchronous backward is run for number coiler furnace, and the magnetic tape trailer of upper passage becomes this passage and takes the lead at this time, and the taking the lead of upper passage becomes this passage Magnetic tape trailer；The head for conveying strip successively bites No. two furnace volume horizontal mills after No. two steekle mill manipulators adjust centering, bites No.1 furnace rolls up horizontal mill, after the head of strip goes out No.1 furnace volume horizontal mill, adjusts centering by No.1 steekle mill manipulator, It is clamped and is conveyed by No.1 pinch roller scissors again, the fire door through putting down enters alignment reel jaw in No.1 coiler furnace, band steel taping head When being inserted into reel jaw certain length, starting No.1 coiler furnace and No.1 furnace volume horizontal mill, No. two furnaces roll up horizontal mill and two The operation of number coiler furnace synchronous rotary, raising speed, make the reel jaw of No.1 coiler furnace clamp the tail portion of strip, while reel is wrapped Strip establishes tension；Go to step D107；

D107, No.1 pinch roller scissors and No. two pinch roller scissors rise to guiding and equalization of strain operating position, and strip is made to exist Heat preservation and rolling in No.1 coiler furnace and No. two coiler furnaces；Go to step D108；

D108, when the strip end head that intermediate base rolls into be rolled to close to No.1 furnace roll up horizontal mill when, No.1 coiler furnace, one Number furnace volume horizontal mill, No. two furnaces volume horizontal mills and the synchronous reductions of speed of No. two coiler furnaces；When the tail part of band steel quilt that intermediate base rolls into When rolling to the roller gap position of the volume finish rolling horizontal mill of No.1 furnace out, shuts down, complete the work of two passage steckel rolling systems；Turn step Rapid D109；

D109, next start next one reversed rolling, repeat the rolling order of step D102 ~ D109, so round-trip rolling is more Passage, the odd number extreme trace until intermediate base being rolled into the finished strip with a thickness of 1.5~26mm；The band that extreme trace rolls out Steel passes through the strip for being delivered to strip roller repairing device as semi-finished product under No. two coiler furnaces for closing fire door, goes to step E It cools；In each passes, loop back roll rolls up strip tension between horizontal mill and No. two furnace volume horizontal mills to No.1 furnace Control balances metal mass flow between two milling trains, improves plate shape；

E, strip cools, and the strip of the semi-finished product handled through step D109 is delivered to strip roller repairing device, band Steel roller repairing device carries out uniform water-spraying control to upper surface, the lower surface of the strip of semi-finished product, keeps the strip of semi-finished product full Sufficient rolling mill practice deformation temperature requirement, reaches 450 DEG C~700 DEG C of target coiling temperature, it is good to obtain to become the strip of finished product Good metal comprehensive mechanical property, and strip roller repairing device meets the cooling technique requirement of strip TMCP thermo-mechanical rolling； Go to step F；

F, strip coiling is examined the strip for being cooled to the finished product of coiling temperature range of requirement is handled through step E through surface quality It surveys, enters coiling machine after centralising device adjusts centering and batch as coil of strip.

The second object of the present invention is to provide a kind of suitable for rolling wide strip roll bending and special wide-width thick, inhomogeneity The production line of the plate steekle mill rolled plate of the steel grade of type.

The second object of the present invention be achieved in that including heating furnace, delivery roller table, slab high pressure water descaling device, Slab manipulator, heavy plate mill laminar flow and descaling device, slab horizontal mill, slab vertical miller, slab controlled cooling device, correction dress It sets, flying shear, No.1 coiler furnace, No.1 pinch roller scissors, No.1 steekle mill laminar flow and descaling device, No.1 steekle mill push away Bed, No.1 furnace volume horizontal mill, furnace volume vertical miller, loop back roll, No. two furnaces roll up horizontal mill, No. two steekle mill manipulators, two Number steekle mill laminar flow and descaling device, No. two pinch roller scissors, No. two coiler furnaces, strip roller repairing device, centralising device And coiling machine；Delivery roller table is arranged in the discharge outlet of the heating furnace, and slab high pressure water is arranged in one end of the delivery roller table Descaling device, slab high pressure water descaling device are sequentially connected slab horizontal mill, slab vertical miller, slab by rollgang Controlled cooling device and apparatus for correcting；Wherein, slab is disposed between slab high pressure water descaling device and slab horizontal mill Manipulator, heavy plate mill laminar flow and descaling device, are disposed with heavy plate mill between slab vertical miller, slab controlled cooling device Laminar flow and descaling device, slab manipulator；Flying shear is set in the other end of the delivery roller table, flying shear is successively connected by rollgang Connect No.1 coiler furnace, No.1 pinch roller scissors, No.1 steekle mill laminar flow and descaling device, No.1 steekle mill manipulator, No.1 Furnace rolls up horizontal mill, furnace rolls up vertical miller, and the furnace volume vertical miller is sequentially connected loop back roll, No. two furnace volumes by rollgang Horizontal mill, No. two steekle mill manipulators, No. two steekle mill laminar flows and descaling device, No. two pinch roller scissors, No. two batch Furnace, No. two coiler furnaces are sequentially connected strip roller repairing device and coiling machine by rollgang.

Compared with prior art, the present invention has following technical effect that

1, using the device configuration pattern of heavy plate mill and Stand Mill furnace volume finishing mill, heavy plate mill rolling width is rolled up than traditional burner Big 800~the 1000mm of finishing mill rolling width, width ratio is up to 1.6 times or more；

2, when wide strip roll bending Rolling Production, heavy plate mill undertakes base work among roughing, and furnace volume horizontal mill undertakes strip essence Roll work；Also a frame roughing mill, two frame steekle mill finish rolling wide strip roll bending production technologies are formed, it is thick, smart to be conducive to optimization distribution Mill milling load；Raising product surface quality is greatly improved, relatively thin kind rolling quantity and stability are increased；

3, the production of wide strip roll bending is rolled up by four roller reversible furnace of Stand Mill again after taking flying shear to cut intermediate base defect head, tail portion Horizontal mill finish rolling, improves rolling efficiency, is effectively reduced the reversible passage in furnace volume finish rolling stage and enters coiler furnace Threading number, reduces accident rate, and shortens oxidization time of the strip in coiler furnace, to ensure that the surface matter of strip Amount and lumber recovery；

4, wide strip roll bending is used with wide continuous casting steel billet raw material, and slab length can be greater than 10m, along the longitudinally rolling life of slab length It produces, product volume is great, high-efficient；

5, the heavy plate mill of more wide cut, the slab that can be used length short are turned direction and are back and forth rolled, along width of plate slab direction transverse direction The cut deal and plate product of Rolling Production more wide cut.It avoids having saved more smeltings using more wide cut continuous casting steel billet raw material It is invested with continuous casting；The present invention more wider than the wide strip roll bending reaches 1.6 times or more more using the slab rolling of identical cross-section Wide-width thick improves blank utilization rate, the amplification of product effect；

6, plate steekle mill of the invention (Steckel Plate Mill) can be applied not only to production maximum width < 3m, most Big minimum widith is than the larger width difference hot rolled plate product variety up to 1.6 times or more；It is maximum also to adapt to production thickness About 50mm, minimax thickness is than the larger thickness differentiation hot rolled plate product variety up to 25 times；

7, longitudinal and cross rolling different type plate can be achieved in plate steekle mill of the invention (Steckel Plate Mill) Differentiation rolling mill practice, make plate product have corresponding Physical Metallurgy related to axial rolling, cross rolling process, mechanical property and matter Amount feature is applicable not only to the common structure steel grade of different wide cuts, it is special, advanced to apply also for stainless steel of different wide cuts etc. Kind, the product type multiplicity that slab rolling is produced, and better quality and stabilization；

8, advanced strip roller repairing device of use plate steekle mill (Steckel Plate Mill) of the invention, slab control Device for cooling, using ACC accelerate cooling, the ultrafast cooling of UFC, LFC section cooling technology, slab, strip can be met respectively The cooling technique requirement of TMCP thermo-mechanical rolling；And it adapts to DP dual phase steel, CP Multiphase Steel etc. advanced high intensity, structure etc. uses strip The production technologies of rolling shapes, microstructure requirement, adapt to and meet other advanced high strength steel plates to roll with the novel TMCP of kind Cooling technique requirement processed；

9, production line and milling train quantity have been simplified in use plate steekle mill (Steckel Plate Mill) of the invention, shorten life Producing line length, reduces the temperature loss of strip during the rolling process, and four roller reversible furnace of Stand Mill is rolled up between horizontal mill rack Tension-rolling is conducive to produce the relatively thin coils of hot-rolled steel of thickness limit.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the production line of plate steekle mill rolled plate in the present invention；

Fig. 2 is the another embodiment structural schematic diagram of the production line of plate steekle mill rolled plate in the present invention；

Figure label: 1 ~ heating furnace, 2 ~ delivery roller table, 3 ~ slab high pressure water descaling device, 4 ~ slab manipulator, 5 ~ heavy plate mill layer Stream and descaling device, 6 ~ slab horizontal mill, 7 ~ slab vertical miller, 8 ~ slab controlled cooling device, 9 ~ apparatus for correcting, 10 ~ flying shear, 11 ~ No.1 coiler furnace, 12 ~ No.1 pinch roller scissors, 13 ~ No.1 steekle mill laminar flow and descaling device, 14 ~ No.1 steekle mill Manipulator, 15 ~ No.1 furnace volume horizontal mill, 16 ~ furnace volume vertical miller, 17 ~ loop back roll, 18 ~ No. bis- furnaces volume horizontal mills, 19 ~ bis- Number steekle mill manipulator, 20 ~ No. bis- steekle mill laminar flows and descaling device, 21 ~ No. bis- pinch roller scissors, 22 ~ No. bis- coiler furnaces, 23 ~ strip roller repairing device, 24 ~ centralising device, 25 ~ coiling machine, 26 ~ Wrapping Roll, 27 ~ slab, 28 ~ centre base, 29 ~ thick Plate, 30 ~ strip.

Specific embodiment

The present invention will be further described below with reference to the drawings, but the present invention is limited in any way, base In present invention teach that it is made it is any transform or replace, all belong to the scope of protection of the present invention.

A kind of method of plate steekle mill rolled plate, including A, heating, B, slab oxide are removed, C, intermediate base rolling Or heavy plate rolling, D, furnace roll up finish rolling, E, strip cool, F, strip coiling；

A, it heats, slab 27 is sent into heating furnace 1 and is heated to 1100 DEG C~1280 DEG C temperature ranges, and the slab that heating is completed 27 come out of the stove to delivery roller table 2, go to step B；Wherein, slab 27 includes short base and long base；When the short base of use is heated to be slab 27 When, two rows or three rows fill cloth in heating furnace 1, single to discharge respectively；When being heated to be slab 27 using long base, in heating furnace Single-line held cloth in 1, single discharging；

B, slab oxide is removed, using centralising device adjustment device to the adjustment pair of slab 27 through the conveying operation of delivery roller table 2 In after be sent into slab high pressure water descaling device 3, slab high pressure water descaling device 3 spray high pressure water remove 27 upper surface of slab and under The oxide on surface, and the slab 27 for removing oxide is delivered to slab horizontal mill 6 and carries out slab or intermediate base rolling Work；Go to step C；

C, intermediate base rolling or heavy plate rolling,

C1, heavy plate rolling include:

C101, heavy plate rolling select short base for the slab 27 of heating in step first, secondly by step B to heating after Slab 27 carry out oxide removing processing, then through the conveying of step B treated slab 27 through slab manipulator 4 to slab 27 into 90 ° of steering u-turns of row and centering adjustment, keep the width direction of slab 27 consistent with rolling direction；Then slab level is conveyed into roll Machine 6 back and forth rolls 3 ~ 7 passages, and slab 27 is made to become the slab 29 of 12~50mm target thickness along width of plate slab direction transverse rolling； During the rolling process, the width of control slab 27 is modified, by slab vertical miller 7 to guarantee the head of slab, tail portion in Portion's rolling width is consistent；During heavy plate rolling, the descaling jet for opening heavy plate mill laminar flow and descaling device 5 removes secondary oxygen Change iron sheet, or open the laminar flow nozzle of heavy plate mill laminar flow and descaling device 5 and cooling processing is carried out to intermediate base 28, makes intermediate base 28 rolling slab temperature meet the process distortions temperature and 700 DEG C~1000 DEG C of heavy plate rolling technique of TMCP thermo-mechanical rolling Finishing temperature requirement, to meet the technique requirement of TMCP thermo-mechanical rolling；After completing the rolling of slab 29, C102 is gone to step；

C102, slab cool, handled through step C101 with a thickness of the slab 29 of 12~50mm, to be delivered to slab control cold Device 8 cools, and slab controlled cooling device 8 carries out uniform water-spraying control cooling, slab control to upper surface, the lower surface of slab 29 Device for cooling 8 meets the cooling technique requirement of slab TMCP thermo-mechanical rolling, and slab 29 is made to reach 450 DEG C~1000 DEG C target alignings Temperature goes to step C103 after the completion of slab 29 cools；

The slab 29 handled through step C102, is delivered to apparatus for correcting 9 and carries out correcting straight, length by C103, slab output Surely it is cut into as 29 semi-finished product of slab, goes to step C104；

C104, slab finishing, 29 semi-finished product of slab that step C103 is handled through move steel turnover panel rack from rollgang to On cold bed again under cold bed outlet on roller-way, then subsequent slab finishing area is delivered into, 29 semi-finished product of slab are determined Ruler shearing, trimming, cold leveling, inspection, non-destructive testing etc. become 29 finished product of slab；

C2, intermediate base rolling, select long base for the slab 27 of heating, secondly by step B to heating in step first Rear slab 27 carries out oxide removing processing, through step B, treated that slab 27 is delivered to the progress slab 27 of slab manipulator 4 Centering adjustment, then slab 27 after the completion of centering is adjusted are conveyed into back and forth 2 ~ 6 passages of rolling of slab horizontal mill 6, plate Base 27 is rolled into the intermediate base 28 that thickness is less than 35mm, and goes to step D and carry out finish rolling；In intermediate 28 operation of rolling of base, pass through The width of the finishing control slab 27 of slab vertical miller 7, to guarantee that the head, tail portion and middle part of the intermediate base 28 rolled out roll Equivalent width；It opens and is generated on the intermediate base 28 of descaling jet removing of heavy plate mill laminar flow and descaling device 5 during the rolling process Secondary oxidation iron sheet, or open the laminar flow nozzle of heavy plate mill laminar flow and descaling device 5 and cooling processing carried out to intermediate base 28, The furnace volume finish-rolling process temperature requirement for making the temperature of intermediate base 28 meet 900 DEG C~1150 DEG C, to meet TMCP thermo-mechanical rolling Technique requirement；When the intermediate rolling of base 28 conveys after completing to flying shear 10, slab high pressure water descaling device 3 is closed；

D, furnace rolls up finish rolling,

D101, the intermediate base 28 handled through step C2 is transported to flying shear 10, first by base 28 among 10 shear removal of flying shear Head and tail portion, then convey intermediate base 28 and passed through from 11 lower part of No.1 coiler furnace for closing fire door；Go to step D102；

D102, intermediate base 28 successively bite No.1 furnace volume horizontal mill 15 after No.1 steekle mill manipulator 14 adjusts centering, sting Enter No. two furnace volume horizontal mills 18；After the strip that intermediate base 28 rolls into comes out from No. two furnaces volume horizontal mills 18, rolled up through No. two furnaces Manipulator of rolling mill 19 adjusts centering, then by No. two clamping conveyings of pinch roller scissors 21, the fire door through putting down enters No. two coiler furnaces 22 Interior alignment reel jaw, when the strip that intermediate base 28 rolls into is when taking the lead insertion reel jaw certain length, starting two is batched 15, No. two furnace volume horizontal mills 18 of 22 reel of furnace and No.1 furnace volume horizontal mill and synchronous rotary, raising speed, make No. two coiler furnaces 22 Reel jaw clamp the strip end head that intermediate base 28 is rolled into, reel wraps strip and establishes tension；Go to step D103；

D103, No. two operations of pinch roller scissors 21 rise to guiding and equalization of strain operating position, are rolled into intermediate base 28 Strip is in No. two 22 inside holdings of coiler furnace and rolling；Go to step D104；

D104, when entrance of the tail portion for the strip that intermediate base 28 rolls into close to No. two furnaces volume horizontal mill 18, No.1 furnace rolls up water 15, No. two furnace volume horizontal mills 18 of flat-rolled machine reduction of speed synchronous with No. two coiler furnaces 22；Go to step D105；

D105, when the tail part of band steel that intermediate base 28 rolls into is rolled to out the roller gap position of No. two furnaces volume horizontal mill 18, stop Machine completes the work of a time steckel rolling system, goes to step D106；During a time steckel rolling, furnace rolls up 16 essence of vertical miller Trim the width of base 28 among whole control；Go to step D106；

No. two D106, control pinch roller scissors 21 clamp the strip rolled by intermediate base 28 immediately, roll up horizontal mill with No. two furnaces 18 and No. two coiler furnaces 22 then synchronous backward is run, the magnetic tape trailer of upper passage becomes this passage and takes the lead at this time, and upper passage takes the lead to become Cost passage magnetic tape trailer；The head for conveying strip successively bites No. two furnace volumes levels after No. two steekle mill manipulators 19 adjust centering Milling train 18 bites No.1 furnace volume horizontal mill 15, after the head of strip goes out No.1 furnace volume horizontal mill 15, by No.1 steckel rolling Machine manipulator 14 adjusts centering, then is clamped and conveyed by No.1 pinch roller scissors 12, and the fire door through putting down enters in No.1 coiler furnace 11 It is directed at reel jaw, when band steel taping head is inserted into reel jaw certain length, starting No.1 coiler furnace 11 is rolled with No.1 furnace volume level 15, No. two furnace volume horizontal mills 18 of machine and No. two operations of 22 synchronous rotary of coiler furnace, raising speeds, clamp the reel of No.1 coiler furnace 11 Mouth clamps the tail portion of strip, while reel wraps strip and establishes tension；Go to step D107；

D107, No.1 pinch roller scissors 12 and No. two pinch roller scissors 21 rise to guiding and equalization of strain operating position, make band Steel is kept the temperature in No.1 coiler furnace 11 and No. two coiler furnaces 22 and rolling；Go to step D108；

D108, when the strip end head that intermediate base 28 rolls into be rolled to close to No.1 furnace roll up horizontal mill 15 when, No.1 is batched Furnace 11,15, No. two furnace volume horizontal mills 18 of No.1 furnace volume horizontal mill reduction of speed synchronous with No. two coiler furnaces 22；When intermediate base 28 rolls At tail part of band steel be rolled to No.1 furnace out volume finish rolling horizontal mill (15) roller gap position when, shut down, complete two Secondary steckel rolling system work；Go to step D109；

D109, next start next one reversed rolling, repeat the rolling order of step D102 ~ D109, so round-trip rolling is more Passage, the odd number extreme trace until intermediate base 28 being rolled into the finished strip 30 with a thickness of 1.5~26mm；Extreme trace rolls out Strip 30 from close fire door No. two coiler furnaces 22 under across be delivered to strip roller repairing device 23 become semi-finished product band Steel 30 goes to step E and cools；In each passes, loop back roll 17 rolls up horizontal mill 15 to No.1 furnace and No. two furnaces roll up water The 18 strip tension controls of flat-rolled machine, balance metal mass flow between two milling trains, improve plate shape；

E, strip cools, and the strip 30 of the semi-finished product handled through step D109 is delivered to strip roller repairing device 23, strip roller repairing device 23 carries out uniform water-spraying control to upper surface, the lower surface of the strip 30 of semi-finished product, makes semi-finished product Strip 30 meet rolling mill practice deformation temperature requirement, reach 450 DEG C~700 DEG C of target coiling temperature, become the band of finished product Steel 30 is to obtain good metal comprehensive mechanical property, and strip roller repairing device 23 meets strip TMCP thermo-mechanical rolling Cooling technique requirement；Go to step F；

F, strip coiling, the strip 30 for being cooled to the finished product of coiling temperature range of requirement is handled through step E, through surface quality Detection enters coiling machine 25 after centralising device 24 adjusts centering and batches as coil of strip.

De-scaling mode in the step B is then the two sides de-scaling to slab 27 first to the lower surface de-scaling of slab 27, most Afterwards to the upper surface de-scaling of slab 27；To have particular/special requirement it is non-to type claim compound slab 27 then to the rolling surface of slab 27 into Row single side de-scaling cooling goes out roll gap to control slab 27 and sticks up discount direction.

In the step C101 and C2, the rolling width of the finishing control slab 27 of slab vertical miller 7, to guarantee slab 27 Head, middle part during the rolling process is consistent with the rolling width of tail portion.

In the operation of rolling of the step D102 ~ D109, No.1 steekle mill laminar flow and descaling device 13 or No. two are opened Descaling device on steekle mill laminar flow and descaling device 20 removes the Reoxides that intermediate base 28 generates in finishing stands, De-scaling water pressure is 20~25Mpa；Or it opens 13, No. two steekle mill laminar flows of No.1 steekle mill laminar flow and descaling device and removes The strip that any milling train laminar flow on squama device 20 rolls into intermediate base 28 cools down, and the strip for rolling into intermediate base 28 meets The process distortions temperature requirement of steekle mill TMCP thermo-mechanical rolling and 700 DEG C~1000 DEG C target finishing temperatures.

In the operation of rolling of the step D102 ~ D105, furnace rolls up 16 pairs of vertical miller intermediate bases 28 and carries out width direction Decompression controls the rolling width of intermediate base 28, guarantees that head, the middle part of furnace volume finish rolling finished strip 30 are consistent with tail width； Loop back roll 17 described in the operation of rolling of the step D102 ~ D109 rolls up water in No.1 furnace volume horizontal mill 15 and No. two furnaces The strip that intermediate base 28 between flat-rolled machine 18 is rolled into carries out tension force, balance No.1 furnace volume horizontal mill 15 and No. two furnaces The metal mass flow between horizontal mill 18 is rolled up, plate shape is improved.

When opening No.1 furnace volume horizontal mill 15 simultaneously and No. two furnace volume horizontal mills 18 are run, reciprocal rolling pass is 3 ~ 5 passages.

When individually opening No.1 furnace volume horizontal mill 15 or No. two furnace volume horizontal mills 18 are run, reciprocal rolling pass is 7 ~ 11 passages.

In the operation of rolling of the step D102 ~ D109, the furnace temperature of 11, No. two coiler furnaces 22 of No.1 coiler furnace is not more than 1200 degrees Celsius.

In the step F, strip 30 batches any one of mode is batched for ground or underground is batched.

In the step C101, the length of short base is not less than 1000 mm, and is not more than 3000mm.

In the step C1, the length of long base is not less than 6000 mm, and is not more than 11000mm.

In the step C102, the target temperature that slab 29 cools is 450 DEG C~1000 DEG C, to obtain the micro- of needs Tissue is seen, good metal comprehensive mechanical property is finally obtained.

In the step C2, the target temperature that intermediate base 28 cools is 900 DEG C~1150 DEG C, rolls up essence with the furnace of satisfaction Roll process temperature requirement.

During the step E strip cools, cool 450 DEG C~700 DEG C of target temperature of finished strip, to obtain The microstructure needed finally obtains good metal comprehensive mechanical property.

Slab high pressure water descaling device 3, heavy plate mill laminar flow and the descaling device 5, No.1 steekle mill laminar flow and 20~the 25Mpa of pressure of 13, No. two steekle mill laminar flows of descaling device and descaling device 20.

The type of cooling in step C102, E is that ACC accelerates cooling, the ultrafast cooling of UFC, LFC section cooling mode One or more of them combination cooling；Different according to steel plate rolling thickness, temperature, it is cold that ACC accelerates cooling to have 40 DEG C/s of maximum But rate, the ultrafast cooling of UFC have 60~200 DEG C/s cooling rate, and LFC section cooling has the cooling rate of 15 DEG C/s of <, While cooling, it takes one or more of them mode piecewise combination cooling, reaches and rationally open or close each section of cooling, make certain Component steel board finished product meets the Physical Metallurgy needed and the requirement of mechanics metallurgical temperature, obtains the microstructure and specific power of needs Learn performance.

The production line of plate steekle mill rolled plate as shown in attached drawing 1 ~ 2, including heating furnace 1, delivery roller table 2, slab High pressure water descaling device 3, slab manipulator 4, heavy plate mill laminar flow and descaling device 5, slab horizontal mill 6, slab vertical miller 7, slab controlled cooling device 8, apparatus for correcting 9, flying shear 10, No.1 coiler furnace 11, No.1 pinch roller scissors 12, No.1 steekle mill layer Stream and descaling device 13, No.1 steekle mill manipulator 14, No.1 furnace volume horizontal mill 15, furnace volume vertical miller 16, loop back roll 17, No. two furnaces roll up 20, No. two pinch rollers of the steekle mill laminar flow of steekle mill manipulator 19, two of horizontal mill 18, two and descaling device 21, No. two coiler furnaces 22 of scissors, strip roller repairing device 23, centralising device 24 and coiling machine 25；The discharging of the heating furnace 1 Delivery roller table 2 is set at mouthful, slab high pressure water descaling device 3, slab high-pressure water descaling are set in one end of the delivery roller table 2 Device 3 is sequentially connected slab horizontal mill 6, slab vertical miller 7, slab controlled cooling device 8 and apparatus for correcting by rollgang 9；Wherein, slab manipulator 4, heavy plate mill layer are disposed between slab high pressure water descaling device 3 and slab horizontal mill 6 Stream and descaling device 5 are disposed with heavy plate mill laminar flow and de-scaling dress between slab vertical miller 7, slab controlled cooling device 8 Set 5, slab manipulator 4；Flying shear 10 is set in the other end of the delivery roller table 2, flying shear 10 is sequentially connected one by rollgang Number coiler furnace 11, No.1 pinch roller scissors 12, No.1 steekle mill laminar flow and descaling device 13, No.1 steekle mill manipulator 14, No.1 furnace rolls up horizontal mill 15, furnace rolls up vertical miller 16, and the furnace volume vertical miller 16 is sequentially connected loop by rollgang 17, No. two furnaces of roller roll up the steekle mill laminar flows of steekle mill manipulator 19, two of horizontal mill 18, two and descaling device 20, two 21, No. two coiler furnaces 22 of pinch roller scissors, No. two coiler furnaces 22 are sequentially connected strip roller repairing by rollgang and fill 23 and coiling machine 25 are set, centralising device 24 are respectively set at the both ends of each rollgang, centralising device 24 is for aligning slab 27, the position of intermediate base 28, slab 29 and strip 30 makes slab 27, intermediate base 28, slab 29 and strip 30 during transportation Begin parallel with rollgang, and on the eccentric axial line in rollgang.

15, No. two the slab horizontal mill 6, No.1 furnace volume horizontal mill furnaces volume horizontal mills 18 are Stand Mill four Roller reversible horizontal mill, wherein the rolling width of the slab horizontal mill 6 is rolled not less than No.1 furnace volume horizontal mill 15 1.6 times of width, slab horizontal mill 6 uses Electro-pressing and hydraulic pressing mode, and has the function of roller, wherein hydraulic pressure Under type has the function of HAGC Hydraulic automatic control；The slab vertical miller 7 has the function of automatic width control HAWC； The rolling width of 15, No. two furnace volume horizontal mills 18 of No.1 furnace volume horizontal mill is identical, and No.1 furnace volume horizontal mill 15, No. two furnace volume horizontal mills 18 are all made of Electro-pressing and hydraulic pressing mode, and have the function of roller, roll shifting, wherein hydraulic pressure Under type has the function of HAGC Hydraulic automatic control.

The width of the delivery roller table 2 is not less than the width of rollgang of the delivery roller table 2 to slab horizontal mill 6, And the width of the rollgang is not less than slab horizontal mill 6, the width of No.1 furnace volume 15 feed inlet of horizontal mill；The thickness Plate manipulator 4 uses hydraulic drive, and there are slab manipulator 4 90 degree to turn to and centering operating function；The apparatus for correcting 9 is that heat is rectified Straight device is provided with the crosscutting scissors of slab in the entrance of apparatus for correcting 9 and/or exit；The slab controlled cooling device 8, band Steel roller repairing device 23 one of accelerates cooling, the ultrafast cooling of UEC, LEC laminar flow cold or the cooling of multiple combinations using ACC Mode.

The furnace volume vertical miller 16 is located between 15, No. two furnace volume horizontal mills 18 of No.1 furnace volume horizontal mill, has Automatic width control HAWC function；It rolls up in the furnace and is arranged between vertical miller 16 and No. two furnace volume horizontal mills 18 with defeated Send, control the loop back roll 17 of balance tension function.

The flying shear 10 is arranged between delivery roller table 2 and No.1 coiler furnace 11；The No.1 pinch roller scissors 12 is set It is placed in close at the threading fire door of No.1 coiler furnace 11；No. two pinch roller scissors 21 are disposed adjacent to No. two coiler furnaces 22 Threading fire door at；The coiling machine 25 at least one, the reel of the coiling machine 25 is stepless expanding-contracting type reel, and institute Coiling machine 25 is stated to be provided with therewith with the suitable Wrapping Roll 26 with automatic jump control function.

The heating furnace 1 is the walking beam furnace 1 with two or three groups of water beams, and is set at the feeding end of heating furnace 1 It is equipped with steel loading machine, discharge end is provided with extractor, and the steel loading function is single, two rows or three rows fill cloth respectively；The tapping Function is grouped single discharging, or the single discharging of joint.

The slab high pressure water descaling device 3 is to be distinguished using lower surface de-scaling, two sides de-scaling and upper surface de-scaling The integral structure device of the separate structure of setting or lower surface, upper surface and two sides de-scaling combination settings；In slab high pressure water The inlet of descaling device 3 is provided with centering guide and guards.

On each rollgang it is provided with different types centralising device, if 10 entrance side of flying shear is to centering guide, Centralising device 24 as 25 entrance of coiling machine is arranged is the centering deflector roll with hydraulic short stroke control, such as slab high-pressure water descaling 3 entrance of device is provided with to centering guide, is provided in the link position of rollgang change width to centering guide etc..

The apparatus for correcting 9 is also connected by rollgang and moves steel turnover panel rack, cold bed, length scaling shear knife, cuts Side scissors, cold straightener, ultrasonic flaw detecting device and pile plate collector；For subsequent slab finishing area, cut deal it is cold State shearing, trimming etc. can be used flame or plasma cut mode etc., configure simpler and more direct subsequent slab finishing area technique and Equipment.

Below by embodiment, present invention is further described in detail:

Embodiment one

As shown in Figure 1, No.1 furnace volume horizontal mill 15 and No. two furnace volume operation Rolling Production volumes of horizontal mills 18 ought be opened simultaneously When plate, specification be 200 mm × 1550 mm × 6000mm/8500mm/11000(thickness × width x length) slab 27 pass through steel loading Machine single-line held cloth is in heating furnace 1, after being heated to 1100 °C~1280 DEG C of rolling target temperature；Slab 27 is passed through tapping Machine taken out from heating furnace 1 through delivery roller table 2 be delivered to slab high pressure water descaling device 3 pass through high pressure water remove 27 surface of slab Oxide；

Secondly, after the slab manipulator 4 that slab 27 first passes through 6 inlet of slab horizontal mill adjusts centering, then rolled by slab level 2 ~ 4 are back and forth rolled on machine 6, during the rolling process, width direction pressure are carried out to slab 27 with slab vertical miller 7 and is subtracted, and is right Head, the tail portion of slab 27 carry out width taper press control, until slab 27 is rolled into 23~32mm by slab horizontal mill 6 × 1550mm(is thick × wide) intermediate base 28.

Intermediate base can open heavy plate mill laminar flow and descaling device 5 during each passes according to the technological requirements, right Intermediate base 28 carries out cooling and secondary descaling steel, and intermediate base 28 is made to meet the furnace of subsequent treatment process temperature and 900 DEG C~1150 DEG C Roll up finish-rolling process temperature requirement.

Intermediate base 28 is delivered to 10 topping of flying shear, tail portion through rollgang, then send to No.1 furnace volume horizontal mill 15, No. two furnaces roll up horizontal mill 18, are rolled into thickness in 25mm strip 30 below, and strip 30 and are conveyed into No. two coiler furnaces 22 Middle heat preservation rolling；In subsequent each reversible passes, intermediate base 28 has been rolled into thickness 25mm strip 30 below, and strip 30 both ends are rolled up respectively to be kept the temperature on the reel in 11, No. two coiler furnaces 22 of No.1 coiler furnace；It is rolled up by No.1 coiler furnace 11, two Take furnace 22 that the intermediate base 28 of 18 pairs of horizontal mill of the furnace volume of No.1 furnace volume horizontal mill 15, two is cooperated to be kept the temperature, reciprocal rolling work Make.

In each passage that furnace rolls up reciprocal finish rolling, the width that furnace rolls up 16 pairs of vertical miller intermediate bases 28 carries out accurate adjustment control System；When each finishing pass threading conveys the strip that intermediate base 28 rolls into, 12, No. two pinch roller scissors 21 of No.1 pinch roller scissors It is in and pinches position；When normal rolling after each finishing pass raising speed or before reduction of speed, No.1 pinch roller scissors 12, two folders It send roller scissors 21 then to rise and balances the strip tension that intermediate base 28 rolls into the adjustment of guiding position；The loop in each finishing pass Roller 17 then rolls up the strip between horizontal mills 18 in No.1 furnace volume horizontal mill 15 and No. two furnaces in operating position adjustment Tension and metal flow；Repeat above finish rolling step back and forth roll 3~5 make intermediate base 28 along the axial rolling of green body length direction until With a thickness of the strip 30 of 1.5mm~26mm.

In each finishing pass, No.1 steekle mill laminar flow and descaling device 13 and/or two can be opened according to the technological requirements The strip that number steekle mill laminar flow and 20 pairs of descaling device intermediate bases 28 roll into is cooled down or multi-pass de-scaling, makes to roll out Strip 30 meet rolling mill practice temperature and target finishing temperature；The strip 30 that extreme trace rolls out is delivered to strip roller repairing When device 23, immediately enters and accelerate cooling, the ultrafast cooling of UFC, LFC section cooling to combine the type of cooling and dropped using by ACC Temperature, cooling, strip roller repairing device 23 are required according to 30 different size of strip, the cooling of kind, and it is cold to open or close each control Duan Jiguan, to 30 upper and lower surfaces of strip, water-spraying control, the target for making strip 30 reach 450 DEG C~700 DEG C batch temperature simultaneously Degree, to obtain the microstructure of target, good comprehensive Metal Mechanic Property.

The strip 30 that cooled that treated is delivered to centralising device 24 and adjusts centering, and carries out surface quality detection, Finally under the help of 26 Step-by-step control of Wrapping Roll, it is thick × wide that finished product 1.5mm~26mm × 1550mm(is coiled by coiling machine 25) Coil of strip.

Embodiment two

As shown in Figure 1, No.1 furnace volume horizontal mill 15 and No. two furnace volume operation Rolling Production volumes of horizontal mills 18 ought be opened simultaneously When plate, specification be 200 mm × 1550 mm × 6000mm/8500mm/11000(thickness × width x length) slab 27 pass through steel loading Machine single-line held cloth is in heating furnace 1, after being heated to 1100 °C~1280 DEG C of rolling target temperature；Slab 27 is passed through tapping Machine taken out from heating furnace 1 through delivery roller table 2 be delivered to slab high pressure water descaling device 3 pass through high pressure water remove 27 surface of slab Oxide；Secondly, after the slab manipulator 4 that slab 27 first passes through 6 inlet of slab horizontal mill adjusts centering, then by slab water 2 ~ 4 are back and forth rolled on flat-rolled machine 6, during the rolling process, width direction pressure are carried out to slab 27 with slab vertical miller 7 and is subtracted, And width taper press control is carried out to the head of slab 27, tail portion, until slab horizontal mill 6 slab 27 is rolled into 23~ 32mm × 1550mm(is thick × wide) intermediate base 28.

Intermediate base can open heavy plate mill laminar flow and descaling device 5 during each passes according to the technological requirements, right Intermediate base 28 carries out cooling and secondary descaling steel, and intermediate base 28 is made to meet the furnace of subsequent treatment process temperature and 900 DEG C~1150 DEG C Roll up finish-rolling process temperature requirement.

Intermediate base 28 is delivered to 10 topping of flying shear, tail portion through rollgang, then send horizontal to only furnace volume Rolling-mill housing, No.1 furnace rolls up horizontal mill 15 or No. two furnaces roll up horizontal mills 18, is rolled into thickness in 25mm strip 30 below, And strip 30 is conveyed into No. two coiler furnaces 22 and keeps the temperature rolling；In subsequent each reversible passes, intermediate base 28 has been rolled into Thickness 25mm strip 30 below, and the reel in 11, No. two coiler furnaces 22 of No.1 coiler furnace is rolled up at 30 both ends of strip respectively Upper heat preservation；By 11, No. two coiler furnaces 22 of No.1 coiler furnace cooperate an only rack No.1 furnace roll up horizontal mill 15 or 18 pairs of horizontal mill intermediate bases 28 of No. two furnace volumes are kept the temperature, reciprocal rolling works.

In each passage that furnace rolls up reciprocal finish rolling, when each finishing pass threading conveys the strip that intermediate base 28 rolls into, 12, No. two pinch roller scissors 21 of No.1 pinch roller scissors, which are in, pinches position；After each finishing pass raising speed or before reduction of speed When normal rolling, 12, No. two pinch roller scissors 21 of No.1 pinch roller scissors, which then rise, balances intermediate base in the adjustment of guiding position 28 strip tensions rolled into；An only furnace rolls up horizontal mill rack, repeats above finish rolling step and back and forth roll 3 ~ 5 to make Between base 28 along the axial rolling of green body length direction until with a thickness of 3mm~26mm strip 30.

In each finishing pass, No.1 steekle mill laminar flow and descaling device 13 and/or two can be opened according to the technological requirements The strip that number steekle mill laminar flow and 20 pairs of descaling device intermediate bases 28 roll into is cooled down or multi-pass de-scaling, makes to roll out Strip 30 meet rolling mill practice temperature and target finishing temperature；The strip 30 that extreme trace rolls out is delivered to strip roller repairing When device 23, immediately enters and accelerate cooling, the ultrafast cooling of UFC, LFC section cooling to combine the type of cooling and dropped using by ACC Temperature, cooling, strip roller repairing device 23 are required according to 30 different size of strip, the cooling of kind, and it is cold to open or close each control Duan Jiguan, to 30 upper and lower surfaces of strip, water-spraying control, the target for making strip 30 reach 450 DEG C~700 DEG C batch temperature simultaneously Degree, to obtain the microstructure of target, good comprehensive Metal Mechanic Property.

The strip 30 that cooled that treated is delivered to centralising device 24 and adjusts centering, and carries out surface quality detection, Finally under the help of 26 Step-by-step control of Wrapping Roll, it is thick × wide that finished product 3mm~26mm × 1550mm(is coiled by coiling machine 25) Coil of strip.

Embodiment three

As shown in Fig. 2, individually opening No.1 furnace volume horizontal mill 15 or No. two furnace volume operation Rolling Production roll bendings of horizontal mills 18 When, specification be 200 mm × 1550 mm × 6000mm/8500mm/11000(thickness × width x length) slab 27 pass through steel loading machine Single-line held cloth is in heating furnace 1, after being heated to 1100 °C~1280 DEG C of rolling target temperature；Slab 27 is passed through extractor It is taken out from heating furnace 1 and is delivered to slab high pressure water descaling device 3 through delivery roller table 2 and passes through high pressure water removing slab 27 surface Oxide；Secondly, after the slab manipulator 4 that slab 27 first passes through 6 inlet of slab horizontal mill adjusts centering, then by slab level 2 ~ 4 are back and forth rolled on milling train 6, during the rolling process, width direction pressure are carried out to slab 27 with slab vertical miller 7 and is subtracted, and Width taper press control is carried out to the head of slab 27, tail portion, until slab horizontal mill 6 slab 27 is rolled into 23~ 32mm × 1550mm(is thick × wide) intermediate base 28.

Intermediate base can open heavy plate mill laminar flow and descaling device 5 during each passes according to the technological requirements, right Intermediate base 28 carries out cooling and secondary descaling steel, and intermediate base 28 is made to meet the furnace of subsequent treatment process temperature and 900 DEG C~1150 DEG C Roll up finish-rolling process temperature requirement.

Intermediate base 28 is delivered to 10 topping of flying shear, tail portion through rollgang, then send horizontal to only furnace volume Rolling-mill housing, No.1 furnace rolls up horizontal mill 15 or No. two furnaces roll up horizontal mills 18, is rolled into thickness in 25mm strip 30 below, And strip 30 is conveyed into No. two coiler furnaces 22 and keeps the temperature rolling；In subsequent each reversible passes, intermediate base 28 has been rolled into Thickness 25mm strip 30 below, and the reel in 11, No. two coiler furnaces 22 of No.1 coiler furnace is rolled up at 30 both ends of strip respectively Upper heat preservation；By 11, No. two coiler furnaces 22 of No.1 coiler furnace cooperate an only rack No.1 furnace roll up horizontal mill 15 or 18 pairs of horizontal mill intermediate bases 28 of No. two furnace volumes are kept the temperature, reciprocal rolling works.

In each passage that furnace rolls up reciprocal finish rolling, when each finishing pass threading conveys the strip that intermediate base 28 rolls into, 12, No. two pinch roller scissors 21 of No.1 pinch roller scissors, which are in, pinches position；After each finishing pass raising speed or before reduction of speed When normal rolling, 12, No. two pinch roller scissors 21 of No.1 pinch roller scissors, which then rise, balances intermediate base in the adjustment of guiding position 28 strip tensions rolled into；An only furnace rolls up horizontal mill rack, and the above finish rolling step of repetition, which back and forth rolls 7~11, to be made Intermediate base 28 is along the axial rolling of green body length direction up to a thickness of the strip 30 of 1.5mm~26mm.

In each finishing pass, No.1 steekle mill laminar flow and descaling device 13 and/or two can be opened according to the technological requirements The strip that number steekle mill laminar flow and 20 pairs of descaling device intermediate bases 28 roll into is cooled down or multi-pass de-scaling, makes to roll out Strip 30 meet rolling mill practice temperature and target finishing temperature；The strip 30 that extreme trace rolls out is delivered to strip roller repairing When device 23, immediately enters and accelerate cooling, the ultrafast cooling of UFC, LFC section cooling to combine the type of cooling and dropped using by ACC Temperature, cooling, strip roller repairing device 23 are required according to 30 different size of strip, the cooling of kind, and it is cold to open or close each control Duan Jiguan, to 30 upper and lower surfaces of strip, water-spraying control, the target for making strip 30 reach 450 DEG C~700 DEG C batch temperature simultaneously Degree, to obtain the microstructure of target, good comprehensive Metal Mechanic Property.

The strip 30 that cooled that treated is delivered to centralising device 24 and adjusts centering, and carries out surface quality detection, Finally under the help of 26 Step-by-step control of Wrapping Roll, it is thick × wide that finished product 1.5mm~26mm × 1550mm(is coiled by coiling machine 25) Coil of strip.

Example IV

As shown in Fig. 2, individually opening No.1 furnace volume horizontal mill 15 or No. two furnace volume operation Rolling Production roll bendings of horizontal mills 18 When, specification be 200 mm × 1550 mm × 6000mm/8500mm/11000(thickness × width x length) slab 27 pass through steel loading machine Single-line held cloth is in heating furnace 1, after being heated to 1100 °C~1280 DEG C of rolling target temperature；Slab 27 is passed through extractor It is taken out from heating furnace 1 and is delivered to slab high pressure water descaling device 3 through delivery roller table 2 and passes through high pressure water removing slab 27 surface Oxide；Secondly, after the slab manipulator 4 that slab 27 first passes through 6 inlet of slab horizontal mill adjusts centering, then by slab level 2 ~ 4 are back and forth rolled on milling train 6, during the rolling process, width direction pressure are carried out to slab 27 with slab vertical miller 7 and is subtracted, and Width taper press control is carried out to the head of slab 27, tail portion, until slab horizontal mill 6 slab 27 is rolled into 23~ 32mm × 1550mm(is thick × wide) intermediate base 28.

Intermediate base can open heavy plate mill laminar flow and descaling device 5 during each passes according to the technological requirements, right Intermediate base 28 carries out cooling and secondary descaling steel, and intermediate base 28 is made to meet the furnace of subsequent treatment process temperature and 900 DEG C~1150 DEG C Roll up finish-rolling process temperature requirement.

Intermediate base 28 is delivered to 10 topping of flying shear, tail portion through rollgang, then send horizontal to only furnace volume Rolling-mill housing, No.1 furnace rolls up horizontal mill 15 or No. two furnaces roll up horizontal mills 18, is rolled into thickness in 25mm strip 30 below, And strip 30 is conveyed into No. two coiler furnaces 22 and keeps the temperature rolling；In subsequent each reversible passes, intermediate base 28 has been rolled into Thickness 25mm strip 30 below, and the reel in 11, No. two coiler furnaces 22 of No.1 coiler furnace is rolled up at 30 both ends of strip respectively Upper heat preservation；By 11, No. two coiler furnaces 22 of No.1 coiler furnace cooperate an only rack No.1 furnace roll up horizontal mill 15 or 18 pairs of horizontal mill intermediate bases 28 of No. two furnace volumes are kept the temperature, reciprocal rolling works.

In each passage that furnace rolls up reciprocal finish rolling, when each finishing pass threading conveys the strip that intermediate base 28 rolls into, 12, No. two pinch roller scissors 21 of No.1 pinch roller scissors, which are in, pinches position；After each finishing pass raising speed or before reduction of speed When normal rolling, 12, No. two pinch roller scissors 21 of No.1 pinch roller scissors, which then rise, balances intermediate base in the adjustment of guiding position 28 strip tensions rolled into；An only furnace rolls up horizontal mill rack, and the above finish rolling step of repetition, which back and forth rolls 7 ~ 11, to be made Intermediate base 28 is along the axial rolling of green body length direction up to a thickness of the strip 30 of 3mm~26mm.

In each finishing pass, No.1 steekle mill laminar flow and descaling device 13 and/or two can be opened according to the technological requirements The strip that number steekle mill laminar flow and 20 pairs of descaling device intermediate bases 28 roll into is cooled down or multi-pass de-scaling, makes to roll out Strip 30 meet rolling mill practice temperature and target finishing temperature；The strip 30 that extreme trace rolls out is delivered to strip roller repairing When device 23, immediately enters and accelerate cooling, the ultrafast cooling of UFC, LFC section cooling to combine the type of cooling and dropped using by ACC Temperature, cooling, strip roller repairing device 23 are required according to 30 different size of strip, the cooling of kind, and it is cold to open or close each control Duan Jiguan, to 30 upper and lower surfaces of strip, water-spraying control, the target for making strip 30 reach 450 DEG C~700 DEG C batch temperature simultaneously Degree, to obtain the microstructure of target, good comprehensive Metal Mechanic Property.

The strip 30 that cooled that treated is delivered to centralising device 24 and adjusts centering, and carries out surface quality detection, Finally under the help of 26 Step-by-step control of Wrapping Roll, it is thick × wide that finished product 3mm~26mm × 1550mm(is coiled by coiling machine 25) Coil of strip.

Embodiment five

Slab 29 as shown in Figure 1 and 2 produces, and is 200 mm × 1550 mm × 1000mm/2000mm/3000mm(thick specification × width x length) slab 27 by steel loading machine two rows or three rows fill cloth in heating furnace 1, be heated to 1100 °C~1280 DEG C After rolling target temperature；By extractor slab 27 be grouped it is single discharge respectively, be delivered to slab high pressure water through delivery roller table 2 Descaling device 3 removes the oxide on 27 surface of slab by high pressure water；Secondly, slab 27 first passes through 6 entrance of slab horizontal mill Operation is reversed end for end in the steering that the slab manipulator 4 at place carries out 90 °, and adjusts centering to the slab 27 after steering, makes the width of slab 27 Direction is consistent with rolling direction；Slab 27 is conveyed on slab horizontal mill 6 and back and forth rolls 3 ~ 7 passages；During the rolling process, Width direction pressure is carried out to slab 27 with slab vertical miller 7 to subtract, and the pressure of width taper is carried out to the head of slab 27, tail portion Control is consistent the end head of the slab rolled out 27, tail portion, middle part width, until slab horizontal mill 6 is slab 27 It is thick × wide to be rolled into 12 ~ 50mm × 2400mm() slab 29.

During the rolling process, the descaling jet for opening heavy plate mill laminar flow and descaling device 5 removes secondary oxidation iron sheet, or The laminar flow nozzle for opening heavy plate mill laminar flow and descaling device 5 carries out cooling processing to intermediate 28 rolled piece of base；Make finished product slab 29 The temperature of rolled piece meets heavy plate rolling deformation temperature and 700 DEG C~1000 DEG C finishing temperature requirements.

Then, slab 29 is adjusted centering through the slab manipulator 4 in 6 exit of slab horizontal mill, then is conveyed into slab control Device for cooling 8 cools to 450 DEG C~1000 DEG C target straightening temperatures, subsequently enters apparatus for correcting 9 and carries out thermal straightening, fixed length is cut It has no progeny, slab 29 is moved into cold bed wherein by shifting steel turnover panel rack, slab controlled cooling device 8 has ACC quick cooling function, can root It is required according to different size, the cooling of kind, opens or closes heavy plate mill laminar flow and descaling device 5 respectively controls cold section of collector, to steel Water spray is uniformly cooling simultaneously for plate upper and lower surfaces, so that slab 29 is reached the Process temperature ranges of requirement, to obtain microcosmic group of target It knits, good comprehensive Metal Mechanic Property.

Claims (10)

1. a kind of method of plate steekle mill rolled plate, including A, heating, B, slab oxide are removed, C, intermediate base rolling or Heavy plate rolling, D, furnace roll up finish rolling, and E, strip cool, F, strip coiling；It is characterized by:

A, it heats, slab (27) is sent into heating furnace (1) and are heated to 1100 DEG C~1280 DEG C temperature ranges, and heating is completed Slab (27) is come out of the stove on delivery roller table (2), and B is gone to step；Wherein, slab (27) includes short base and long base；Add when using short base When heat is slab (27), two rows or three rows fill cloth in heating furnace (1), single to discharge respectively；When the long base of use is heated to be plate When base (27), the single-line held cloth in heating furnace (1), single discharging；

B, slab oxide is removed, and is adjusted using centralising device adjustment device to the slab (27) through delivery roller table (2) conveying operation Slab high pressure water descaling device (3) are sent into after whole centering, slab high pressure water descaling device (3) sprays high pressure water and removes slab (27) The oxide of upper and lower surfaces, and the slab (27) for removing oxide is delivered to slab horizontal mill (6) and carries out thickness Plate or intermediate base roll work；Go to step C；

C, intermediate base rolling or heavy plate rolling,

C1, heavy plate rolling include:

C101, heavy plate rolling select short base for the slab (27) of heating, secondly by step B to heating in step first Rear slab (27) carries out oxide removing processing, then through step B, treated that slab (27) conveying is right through slab manipulator (4) Slab (27) carries out 90 ° of steering u-turns and centering adjustment, keeps the width direction of slab (27) consistent with rolling direction；Then it conveys Enter slab horizontal mill (6) and back and forth roll 3 ~ 7 passages, slab (27) is made to become 12~50mm mesh along width of plate slab direction transverse rolling Mark the slab (29) of thickness；During the rolling process, the width of control slab (27) is modified, by slab vertical miller (7) to protect Head, the tail portion for demonstrate,proving slab are consistent with middle part rolling width；During heavy plate rolling, heavy plate mill laminar flow and descaling device are opened (5) descaling jet removes secondary oxidation iron sheet, or opens the laminar flow nozzle of heavy plate mill laminar flow and descaling device (5) to centre Base (28) carries out cooling processing, make intermediate base (28) rolling slab temperature meet TMCP thermo-mechanical rolling process distortions temperature and The finishing temperature requirement of 700 DEG C~1000 DEG C of heavy plate rolling technique, to meet the technique requirement of TMCP thermo-mechanical rolling；It completes After slab (29) rolling, C102 is gone to step；

C102, slab cool, handling to be delivered to slab control with a thickness of the slab (29) of 12~50mm through step C101 Device for cooling (8) cools, and slab controlled cooling device (8) carries out uniform water-spraying control drop to upper surface, the lower surface of slab (29) Temperature, slab controlled cooling device (8) meet slab TMCP thermo-mechanical rolling cooling technique requirement, make slab (29) reach 450 DEG C~ 1000 DEG C of target straightening temperatures go to step C103 after the completion of slab (29) cools；

C103, slab output, the slab (29) handled through step C102 be delivered to apparatus for correcting (9) correct it is straight, Length is cut into surely as slab (29) semi-finished product, goes to step C104；

C104, slab finishing, the slab that step C103 is handled (29) semi-finished product are through moving steel turnover panel rack from rollgang On to cold bed again under cold bed outlet on roller-way, then deliver into subsequent slab finishing area, to slab (29) semi-finished product into Row cutting to length, trimming, cold leveling, inspection, non-destructive testing etc. become slab (29) finished product；

C2, the rolling of intermediate base, select long base for the slab (27) of heating in step first, secondly by step B to adding Slab (27) after heat carries out oxide removing processing, through step B treated slab (27) is delivered to slab manipulator (4) into Andante base (27) centering adjustment, then slab (27) after the completion of centering is adjusted are conveyed into slab horizontal mill (6) and back and forth roll 2 Slab (27) is rolled into the intermediate base (28) that thickness is less than 35mm by ~ 6 passages, and is gone to step D and carried out finish rolling；In intermediate base (28) in the operation of rolling, the width of control slab (27) is modified by slab vertical miller (7), to guarantee the intermediate base rolled out (28) head, tail portion is consistent with middle part rolling width；Heavy plate mill laminar flow and descaling device (5) are opened during the rolling process Descaling jet removes the secondary oxidation iron sheet generated on intermediate base (28), or opens heavy plate mill laminar flow and descaling device (5) Laminar flow nozzle carries out cooling processing to intermediate base (28), the furnace volume essence for making the temperature of intermediate base (28) meet 900 DEG C~1150 DEG C Roll process temperature requirement, to meet the technique requirement of TMCP thermo-mechanical rolling；To flying shear (10) after intermediate base (28) rolling completion When conveying, close slab high pressure water descaling device (3)；

D, furnace rolls up finish rolling,

D101, the intermediate base (28) handled through step C2 is transported to flying shear (10), first by flying shear (10) shear removal among The head and tail portion of base (28), then convey intermediate base (28) and passed through from No.1 coiler furnace (11) lower part for closing fire door；It goes to step D102；

D102, intermediate base (28) successively bite No.1 furnace volume horizontal mill after No.1 steekle mill manipulator (14) adjusts centering (15), No. two furnace volumes horizontal mill (18) are bitten；The strip that intermediate base (28) rolls into comes out from No. two furnace volumes horizontal mill (18) Afterwards, centering is adjusted through No. two steekle mill manipulators (19), then by No. two pinch roller scissors (21) clamping conveyings, the fire door through putting down Reel jaw is directed in into No. two coiler furnaces (22), when the strip that intermediate base (28) rolls into take the lead insertion reel jaw certain When length, start No. two coiler furnace (22) reels and No.1 furnace volume horizontal mill (15), No. two furnaces volume horizontal mill (18) and same Step rotation, raising speed, make the reel jaw of No. two coiler furnaces (22) clamp the strip end head that intermediate base (28) is rolled into, reel It wraps strip and establishes tension；Go to step D103；

D103, No. two pinch roller scissors (21) operations rise to guiding and equalization of strain operating position, roll intermediate base (28) At strip in No. two coiler furnace (22) inside holdings and rolling；Go to step D104；

D104, when entrance of the tail portion for the strip that intermediate base (28) rolls into close to No. two furnaces volume horizontal mill (18), No.1 furnace Roll up horizontal mill (15), No. two furnace volumes horizontal mill (18) reduction of speed synchronous with No. two coiler furnace (22)；Go to step D105；

D105, the roller gap position of No. two furnaces volume horizontal mill (18) is rolled to out when the tail part of band steel that intermediate base (28) rolls into When, it shuts down, completes the work of a time steckel rolling system, go to step D106；During a time steckel rolling, furnace rolls up vertical miller (16) refine adjustment controls the width of intermediate base (28)；Go to step D106；

No. two D106, control pinch roller scissors (21) clamp the strip rolled by intermediate base (28) immediately, horizontal with No. two furnace volumes Then synchronous backward is run for milling train (18) and No. two coiler furnaces (22), and the magnetic tape trailer for going up passage at this time becomes this passage and takes the lead, upper passage Take the lead become this passage magnetic tape trailer；The head for conveying strip successively bites two after No. two steekle mill manipulators (19) adjust centering Number furnace volume horizontal mill (18) bites No.1 furnace volume horizontal mill (15), when the head of strip goes out No.1 furnace volume horizontal mill (15) after, centering is adjusted by No.1 steekle mill manipulator (14), then clamped and conveyed by No.1 pinch roller scissors (12), through what is put down Fire door, which enters, is directed at reel jaw in No.1 coiler furnace (11), when band steel taping head is inserted into reel jaw certain length, start No.1 Coiler furnace (11) and No.1 furnace volume horizontal mill (15), No. two furnace volumes horizontal mill (18) and No. two coiler furnace (22) synchronous rotaries Operation, raising speed make the reel jaw of No.1 coiler furnace (11) clamp the tail portion of strip, while reel is wrapped strip and established and opens Power；Go to step D107；

D107, No.1 pinch roller scissors (12) and No. two pinch roller scissors (21) rise to guiding and equalization of strain operating position, Make strip heat preservation and rolling in No.1 coiler furnace (11) and No. two coiler furnaces (22)；Go to step D108；

D108, when the strip end head that intermediate base (28) rolls into be rolled to close to No.1 furnace roll up horizontal mill (15) when, No.1 Coiler furnace (11), No.1 furnace volume horizontal mill (15), No. two furnace volumes horizontal mill (18) reduction of speed synchronous with No. two coiler furnace (22)； When the tail part of band steel that intermediate base (28) rolls into, which is rolled, rolls up the roller gap position of finish rolling horizontal mill (15) to No.1 furnace out, It shuts down, completes the work of two passage steckel rolling systems；Go to step D109；

D109, next start next one reversed rolling, repeat the rolling order of step D102 ~ D109, so round-trip rolling is more Passage, the odd number extreme trace until intermediate base (28) being rolled into the finished strip (30) with a thickness of 1.5~26mm；Extreme trace rolls The strip (30) produced passes through under No. two coiler furnaces (22) for closing fire door and is delivered to strip roller repairing device (23) and becomes The strip (30) of semi-finished product, goes to step E and cools；In each passes, loop back roll (17) rolls up horizontal mill to No.1 furnace (15) strip tension controls between No. two furnace volumes horizontal mill (18), balances metal mass flow between two milling trains, improves plate shape；

E, strip cools, and the strip (30) of the semi-finished product handled through step D109 is delivered to strip roller repairing device (23), strip roller repairing device (23) carries out uniform water-spraying control to upper surface, the lower surface of the strip (30) of semi-finished product, makes The strip (30) of semi-finished product meets the requirement of rolling mill practice deformation temperature, reaches 450 DEG C~700 DEG C of target coiling temperature, becomes The strip (30) of finished product is to obtain good metal comprehensive mechanical property, and strip roller repairing device (23) meets strip TMCP The cooling technique requirement of thermo-mechanical rolling；Go to step F；

F, strip coiling, the strip (30) for being cooled to the finished product of coiling temperature range of requirement is handled through step E, through surface matter Amount detection enters coiling machine (25) after centralising device (24) adjust centering and batches as coil of strip.

2. the method for plate steekle mill rolled plate according to claim 1, it is characterised in that: removing in the step B Squama mode is the first lower surface de-scaling to slab (27) and the two sides de-scaling of slab (27), then is removed to the upper surface of slab (27) Squama；To there is the non-of particular/special requirement to claim compound slab (27) then to carry out single side de-scaling cooling to the rolling surface of slab (27) on type, Discount direction is stuck up with control that slab (27) goes out roll gap.

3. the method for plate steekle mill rolled plate according to claim 1, it is characterised in that: the step C101 and C2 In, the rolling width of slab vertical miller (7) finishing control slab (27), to guarantee the head of slab (27) during the rolling process Portion, middle part are consistent with the rolling width of tail portion.

4. the method for plate steekle mill rolled plate according to claim 1, it is characterised in that: the step D102 ~ In the operation of rolling of D109, No.1 steekle mill laminar flow and descaling device (13) or No. two steekle mill laminar flows and de-scaling dress are opened It sets descaling device on (20) and removes the Reoxides that intermediate base (28) generates in finishing stands, de-scaling water pressure is 20~ 25Mpa；Or it opens on No.1 steekle mill laminar flow and descaling device (13), No. two steekle mill laminar flows and descaling device (20) The strip that any milling train laminar flow rolls into intermediate base (28) cools down, and the strip for rolling into intermediate base (28) meets steekle mill The process distortions temperature requirement of TMCP thermo-mechanical rolling and 700 DEG C~1000 DEG C target finishing temperatures.

5. the method for plate steekle mill rolled plate according to claim 1, it is characterised in that: the step D102 ~ In the operation of rolling of D105, furnace rolls up the decompression that vertical miller (16) carry out width direction to intermediate base (28) during the rolling process, The rolling width for controlling intermediate base (28) guarantees that head, the middle part of furnace volume finish rolling finished strip (30) are consistent with tail width；Institute In the operation of rolling for stating step D102 ~ D109, the loop back roll (17) is in No.1 furnace volume horizontal mill (15) and No. two furnaces The strip that intermediate base (28) between volume horizontal mill (18) is rolled into carries out tension force, and balance No.1 furnace rolls up horizontal mill (15) metal mass flow between No. two furnace volumes horizontal mill (18), improves plate shape；It is rolled when opening No.1 furnace volume level simultaneously When machine (15) and No. two furnace volume horizontal mill (18) operations, reciprocal rolling pass is 3 ~ 5 passages, rolls up water when individually opening No.1 furnace When flat-rolled machine (15) or No. two furnace volume horizontal mill (18) operations, reciprocal rolling pass is 7 ~ 11 passages.

6. a kind of production line of plate steekle mill rolled plate described in claim 1, it is characterised in that: including heating furnace (1), Delivery roller table (2), slab high pressure water descaling device (3), slab manipulator (4), heavy plate mill laminar flow and descaling device (5), slab Horizontal mill (6), slab vertical miller (7), slab controlled cooling device (8), apparatus for correcting (9), flying shear (10), No.1 coiler furnace (11), No.1 pinch roller scissors (12), No.1 steekle mill laminar flow and descaling device (13), No.1 steekle mill manipulator (14), No.1 furnace rolls up horizontal mill (15), furnace volume vertical miller (16), loop back roll (17), No. two furnaces volumes horizontal mill (18), No. two furnaces Roll up manipulator of rolling mill (19), No. two steekle mill laminar flows and descaling device (20), No. two pinch roller scissors (21), No. two coiler furnaces (22), strip roller repairing device (23), centralising device (24) and coiling machine (25)；The discharge outlet of the heating furnace (1) is set Delivery roller table (2) are set, slab high pressure water descaling device (3) are set in one end of the delivery roller table (2), slab high-pressure water descaling Device (3) by rollgang be sequentially connected slab horizontal mill (6), slab vertical miller (7), slab controlled cooling device (8) and Apparatus for correcting (9)；Wherein, slab is disposed between slab high pressure water descaling device (3) and slab horizontal mill (6) to push away Bed (4), heavy plate mill laminar flow and descaling device (5), set gradually between (8) in slab vertical miller (7), slab controlled cooling device There are heavy plate mill laminar flow and descaling device (5), slab manipulator (4)；In the other end of the delivery roller table (2), flying shear is set (10), flying shear (10) is sequentially connected No.1 coiler furnace (11), No.1 pinch roller scissors (12), No.1 steckel rolling by rollgang Machine laminar flow and descaling device (13), No.1 steekle mill manipulator (14), No.1 furnace volume horizontal mill (15), furnace roll up vertical miller (16), furnace volume vertical miller (16) loop back roll (17) is sequentially connected by rollgang, No. two furnaces roll up horizontal mill (18), No. two steekle mill manipulators (19), No. two steekle mill laminar flows and descaling device (20), No. two pinch roller scissors (21), No. two volumes It takes furnace (22), No. two coiler furnaces (22) are sequentially connected strip roller repairing device (23) and coiling machine by rollgang (25)；Centralising device (24) are respectively set at the both ends of each rollgang.

7. the production line of plate steekle mill rolled plate according to claim 6, it is characterised in that: the slab is horizontal Milling train (6), No.1 furnace volume horizontal mill (15), No. two furnace volumes horizontal mill (18) are four roller reversible horizontal mills, wherein 1.6 times of the rolling width of the slab horizontal mill (6) not less than No.1 furnace volume horizontal mill (15) rolling width, slab water Flat-rolled machine (6) uses Electro-pressing and hydraulic pressing mode, and has the function of roller, and wherein hydraulic pressing mode has HAGC liquid Press automatic thickness control function；The slab vertical miller (7) has the function of automatic width control HAWC；The No.1 furnace rolls up water Flat-rolled machine (15), the rolling width of No. two furnace volumes horizontal mill (18) are identical, and No.1 furnace volume horizontal mill (15), No. two furnace volumes Horizontal mill (18) is all made of Electro-pressing and hydraulic pressing mode, and has the function of roller, roll shifting, wherein hydraulic pressing mode Has the function of HAGC Hydraulic automatic control.

8. the production line of plate steekle mill rolled plate according to claim 6, it is characterised in that: the delivery roller table (2) width of the width not less than the rollgang of delivery roller table (2) to slab horizontal mill (6), and the width of the rollgang Degree is not less than slab horizontal mill (6), the width of No.1 furnace volume horizontal mill (15) feed inlet；The slab manipulator (4) is adopted With hydraulic drive, and there are slab manipulator (4) 90 degree to turn to and centering operating function；The apparatus for correcting (9) is thermal straightening dress It sets, the entrance of apparatus for correcting (9) and/or exit is provided with the crosscutting scissors of slab；The slab controlled cooling device (8), band Steel roller repairing device (23) using ACC one of accelerate cooling, the ultrafast cooling of UEC, LEC laminar flow cold or multiple combinations it is cold But mode.

9. the production line of plate steekle mill rolled plate according to claim 6, it is characterised in that: the furnace volume edger roll rolls Machine (16) is located between No.1 furnace volume horizontal mill (15), No. two furnace volumes horizontal mill (18), has automatic width control HAWC Function；Setting has conveying, control balance between furnace volume vertical miller (16) and No. two furnace volumes horizontal mill (18) The loop back roll (17) of power function.

10. the production line of plate steekle mill rolled plate according to claim 6, it is characterised in that: the flying shear (10) it is arranged between delivery roller table (2) and No.1 coiler furnace (11)；The No.1 pinch roller scissors (12) is disposed adjacent to one At the threading fire door of number coiler furnace (11)；No. two pinch roller scissors (21) are disposed adjacent to No. two coiler furnace (22) and wear At band fire door；The coiling machine (25) at least one, the reel of the coiling machine (25) are stepless expanding-contracting type reel, and institute Coiling machine (25) is stated to be provided with therewith with the suitable Wrapping Roll (26) with automatic jump control function.