CN105478473A - First-pass closed roll gap tail-swing rolling method for reversible cold rolling mill - Google Patents
First-pass closed roll gap tail-swing rolling method for reversible cold rolling mill Download PDFInfo
- Publication number
- CN105478473A CN105478473A CN201510996877.5A CN201510996877A CN105478473A CN 105478473 A CN105478473 A CN 105478473A CN 201510996877 A CN201510996877 A CN 201510996877A CN 105478473 A CN105478473 A CN 105478473A
- Authority
- CN
- China
- Prior art keywords
- roll
- whipping
- rolling
- passage
- roll gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/36—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0064—Uncoiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/02—Transverse dimensions
- B21B2261/04—Thickness, gauge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention provides a first-pass closed roll gap tail-swing rolling method for a reversible cold rolling mill. The method comprises the steps of lowering the speed of a unit to a low speed before the first-pass closed roll gap tail-swing process, and controlling an uncoiling machine compression roll, an uncoiling and pinching roll compression roll, an inlet turning and pinching roll compression roll, an outlet turning and pinching roll compression roll and an outlet coiling machine compression roll to compress strip steel; after an uncoiling machine loses tension, stopping the unit, pressing an inlet pressing plate table down and keeping an outlet coiling machine tensioned for realizing stable rolling in the tail-swing process; in the first-pass closed roll gap tail-swing process, adopting the constant rolling force control mode, thinning strip tails, preventing the thickness fluctuation of the strip tails from influencing the rolling state, setting a working roll and an intermediate roll to receive the roll bending force, preventing the strip steel from being deflected and spraying emulsion on the strip steel; after the first-pass closed roll gap tail-swing process is completed, lowering the rolling force of roll gaps, setting the working roll and the intermediate roll to receive the balance force and guaranteeing the position stability of the strip steel in the second-pass reverse tape threading process.
Description
Technical field
The present invention relates to a kind of cold rolling technology field, specifically, relate to a kind of reversable cold-rolling machine first passage and close roll gap whipping milling method.
Background technology
Reversible Single Stand Cold Rolling Mill have organization of production flexibly, the feature of product variety and multi-size, and its investment cost low, build and produce effects fast, be widely used in each iron and steel enterprise.But single chassis reversable mill itself also exists limitation, such as lumber recovery, single chassis reversable mill is generally lower by 3% ~ 8% than the lumber recovery of cold continuous rolling, seriously constrains reduction and the competitiveness of product in market of single chassis reversable mill production cost.In the volume finished strip that the rolling of single chassis reversable mill is complete, the poor band steel of thickness and precision mainly contains two parts: one is that band steel toe tail does not roll part, and two is band steel of low speed and the overproof part of accelerating and decelerating part rolling thickness.For low speed and the overproof band steel of accelerating and decelerating part thickness, will after milling train cycling start as-rolled condition is stable as early as possible raising speed to setting mill speed, and employing raising speed is to the mode of setting speed, also should adopt the reduction of speed mode from mill speed reduction of speed to unit creep speed when the fast rolling of this passage is complete as far as possible.By the dropping into as early as possible of THICKNESS CONTROL, the accurate calculating of coil diameter and the stability contorting of acceleration and deceleration, shorten low speed segment and the overproof strip length of accelerating and decelerating part thickness.Do not roll part for strip steel head, the mode rolling can closing roll gap threading by the first passage is taken the lead, and reduces the length of taking the lead not roll; Part is not rolled for tail part of band steel, the mode rolling magnetic tape trailer of roll gap whipping can be closed by the first passage, reduce the length that magnetic tape trailer does not roll.Compare the strip length taking the lead not roll, the strip length that Reversible Single Stand Cold Rolling Mill magnetic tape trailer does not roll is longer, is rolled if can divide tail when the first passage whipping, then effectively can reduce the length that magnetic tape trailer does not roll part, improve the lumber recovery of unit.
At present, domestic Reversible Single Stand Cold Rolling Mill first passage whipping all have employed out the control mode of roll gap whipping substantially, this whipping mode operates and controls simply, easily to realize, but it is long that its obvious shortcoming is that milling train does not roll magnetic tape trailer, the coil of strip coil diameter of when causing whipping to complete reverse threading, entrance coiling machine not rolling is larger, entrance coiling machine inner ring of steel coil is easily caused to skid when the second passage cycling start and increasing speed rolling, as-rolled condition is unstable, and the mode unit lumber recovery opening roll gap whipping is lower.If omnidistance during the first passage whipping, magnetic tape trailer is rolled, magnetic tape trailer part can be rolled length, decrease the band steel of magnetic tape trailer loss, and the band steel after rolling due to plate shape and surface quality all good than the band steel do not rolled, can roll tightly on entrance coiling machine, when carrying out second time rolling after reverse threading, cycling start and accelerate the skidding that all can not cause inner ring of steel coil on entrance coiling machine, is conducive to the stable rolling of milling train.Therefore, for Reversible Single Stand Cold Rolling Mill, want to realize meticulousr control, improve the lumber recovery of milling train, be necessary very much to develop the rolling mode that the first passage closes roll gap whipping.
Summary of the invention
The invention provides a kind of reversable cold-rolling machine first passage and close roll gap whipping milling method, adopt this milling method, the operation of rolling is stablized, and improves the lumber recovery of milling train, improves the surface quality of band steel.
According to an aspect of the present invention, provide a kind of reversable cold-rolling machine first passage and close roll gap whipping milling method, comprise the following steps: before the first passage closes roll gap whipping, be low-speed running by unit reduction of speed, control uncoiler pressure roller, uncoiling pinch roll pressure roller, entrance turning, clamping and conveying roll-in roller, outlet turning, clamping and conveying roll-in roller and outlet coiler press-roller holddown belt steel, can retainer belt steel position stable when uncoiler loses, and provide tension force for closing roll gap whipping; After uncoiler loses, compressor emergency shutdown, provides tension force by the pressure of entrance pressing plate platform, and outlet coiling machine keeps tensioning state, and making in whipping process can stable rolling; First passage is closed in roll gap whipping process, constant roll-force control model is adopted to control mill roll-gap, while thinning magnetic tape trailer, avoid again magnetic tape trailer thickness fluctuation on the impact of as-rolled condition, and working roll and intermediate calender rolls are set to be subject to bending roller force, prevent strip running deviation, emulsion is sprayed to band steel, ensures the upper and lower surperficial sufficient lubrication of band steel; First passage close roll gap whipping complete time, reduce the roll-force of mill roll-gap, and adopt constant roll-force control model, working roll and intermediate calender rolls are set to be subject to equilibrant force, ensure the stable of when the second passage reverse threading band steel position.
Preferably, before the first passage closes roll gap whipping, the action of entrance turning, clamping and conveying roll-in roller comprises described entrance turning, clamping and conveying roll-in roller to swing to and turns to position, thus holddown belt steel.
Preferably, the first passage is closed in roll gap whipping journey, and for the band steel of the thickness super thick of magnetic tape trailer and/or the poor band steel of plate shape, entrance side leads the state that maintenance is opened completely.
Preferably, after the first passage closes roll gap whipping, for preventing the emulsion remained from flowing out to outside frame, continue to purge a period of time with band steel blow device.
Preferably, when being with steel to leave the region of uncoiler, uncoiler pressure roller and uncoiling pinch roll pressure roller are opened to upper extreme position, and the outer support of uncoiler is opened to extreme position.
Preferably, the first passage close roll gap whipping complete time, magnetic tape trailer run to close to during entrance turning, clamping and conveying roller by compressor emergency shutdown.
Preferably, the first passage close roll gap whipping complete time, magnetic tape trailer run to close to during entrance pressing plate platform top board by compressor emergency shutdown.
By the present invention, adopt reversable cold-rolling machine first passage to close roll gap whipping milling method, decrease the length that band steel does not roll part, roll-force, bending roller force are rationally set, the whipping operation of rolling is stablized, improve the surface quality of band steel.
Accompanying drawing explanation
Be described embodiment by combining accompanying drawing below, above-mentioned characteristic sum technological merit of the present invention will become apparent and easy understand.
Fig. 1 is the flow chart closing roll gap whipping milling method according to reversable cold-rolling machine first passage of the embodiment of the present invention;
Fig. 2 is the schematic diagram closing the roll gap whipping operation of rolling according to reversable cold-rolling machine first passage of the embodiment of the present invention.
Detailed description of the invention
The embodiment that reversable cold-rolling machine first passage of the present invention closes roll gap whipping milling method is described below with reference to the accompanying drawings.Those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise with various different mode or its combination to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.In addition, in this manual, accompanying drawing draws not in scale, and identical Reference numeral represents identical part.
In the present embodiment, provide a kind of reversable cold-rolling machine first passage to close roll gap whipping milling method, as shown in Figure 1, it comprises the steps:
Step S102, before first passage closes roll gap whipping, uncoiler pressure roller, uncoiling pinch roll pressure roller, entrance turning, clamping and conveying roll-in roller, outlet turning, clamping and conveying roll-in roller and outlet coiler press-roller holddown belt steel is controlled when low speed rolling, can retainer belt steel position stable when uncoiler loses, and provide tension force for closing roll gap whipping;
Step S104, after uncoiler loses, compressor emergency shutdown, provides tension force by the pressure of entrance pressing plate platform, and outlet coiling machine keeps tensioning state, and making in whipping process can stable rolling;
Step S106, first passage is closed in roll gap whipping process, adopt Constant dvaught pressure control Schema control mill roll-gap, avoid magnetic tape trailer thickness fluctuation on the impact of as-rolled condition while thinning magnetic tape trailer, working roll, intermediate calender rolls are provided with bending roller force, prevent strip running deviation, emulsion is sprayed to band steel, ensure the upper and lower surperficial sufficient lubrication of band steel;
Step S108, the first passage close roll gap whipping complete time, reduce the roll-force of mill roll-gap, and adopt Constant dvaught pressure control pattern, working roll and intermediate calender rolls are set to by equilibrant force, ensure the stable of when the second passage reverse threading band steel position.
Each step that Reversible Single Stand Cold Rolling Mill first passage closes roll gap whipping milling method is illustrated below in conjunction with Fig. 2, although the present embodiment is Reversible Single Stand Cold Rolling Mill first passage close roll gap whipping milling method, the method is equally also applicable to Double Housing Reversible Cold Rolling mill.
As shown in Figure 2; band steel from left side to the right movement be rolled; step S102 is before the first passage closes roll gap whipping; control milling train to low-speed running; because mill milling passage will complete time; in order to ensure the stability of rolling; want first from setting mill speed reduction of speed to a lower speed; such as 30m/min; and directly can not directly drop to milling train shutdown from setting mill speed; because the roll diameter compute strip length of milling train has error, so first reduction of speed is reliable and safe mode to a lower speed.After milling train reduction of speed to low speed rolling state, operation uncoiler pressure roller 2, outlet coiler press-roller 11 are depressed and holddown belt steel; Operation uncoiling pinch roll pressure roller 3 is depressed, and with unit Synchronous Transmission, the hydraulic cylinder for reduction system of uncoiling pinch roll pressure roller 3 is set to larger pressure, large thrust can be provided to band steel; Operation entry turning, clamping and conveying roll-in roller 5, outlet turning, clamping and conveying roll-in roller 10 pressure also holddown belt steel.By uncoiler pressure roller 2, uncoiling pinch roll pressure roller 3, entrance turning, clamping and conveying roll-in roller 5, outlet turning, clamping and conveying roll-in roller 10 and outlet coiler press-roller 11 holddown belt steel when low speed rolling; play a protective role to band steel, when preventing magnetic tape trailer from leaving uncoiler, inlet of rolling mill band steel loses suddenly the situation generation of the unstable and magnetic tape trailer injury device of Zhang Zaocheng as-rolled condition.
Step S104, after uncoiler 1 mistake is opened, compressor emergency shutdown, depresses entrance pressing plate platform top board 7 and holddown belt steel, so that for setting up backward pull when band steel closes roll gap whipping, the tension force exporting coiling machine 12 maintenance setting is constant, and making can stable rolling in whipping process.
Step S106, in the first passage whipping process, down-pressing system of rolling mill is in constant roll-force control model all the time, numerical value when roll-force size is milling train parking.When first passage closes the rolling of roll gap whipping, gap preset pattern can adopt permanent roll-force or permanent roll gap two kinds of control models.To take the lead due to hot rolling raw material and magnetic tape trailer all exists the phenomenon of super thick, and plate shape is also poor, under lower-speed state, whipping adopts permanent gap preset pattern, and roll-force can be caused comparatively large, aggravation band tailgate shape uncontrollable; And permanent roll-force pattern can keep whipping process roll-force constant, and this pattern is also favourable to Strip Shape Control, is the control model of closing roll gap whipping preferably.Constant dvaught pressure control pattern is conducive to the flatness control being with steel, and under can also avoiding adopting permanent gap preset pattern, belt steel thickness super thick causes roll-force become large and increase the difficulty of belt plate shape control.And the bending roller force of working roll, intermediate calender rolls also keeps numerical value when shutting down constant, object is controlled the magnetic tape trailer that plate shape is poor by larger bending roller force, enables magnetic tape trailer whipping under the state having micro-middle wave, prevents strip running deviation.
The roll-force size kept when milling train stops is the feedback roll-force that milling train THICKNESS CONTROL provides, it is not a fixing roll-force, parking roll-force size under the conditions such as different steel grade, different in width and thickness specification, different reduction ratios is all different, and such as rolling straight carbon steel and rolling silicon steel, rolling 1000mm width band steel and rolling 1200mm width band steel, rolling 2.5mm gauge strips steel and rolling 2.0mm gauge strips steel, reduction ratio 20% are all not identical with the roll-force of reduction ratio 30%.This roll-force also has relation from the roller footpath size of different rolling mill design.The present embodiment is the test carried out on the Reversible Single Stand Cold Rolling Mill of 1450mm, and roll-force when milling train stops is generally between 8000 ~ 12000kN.
The working roll that Reversible Single Stand Cold Rolling Mill adopts, the bending roller force of intermediate calender rolls generally increase along with roll-force increases, roll-force reduces and reduces, so working roll, intermediate calender rolls bending roller force size during parking are also relevant with steel grade, width and thickness specification, reduction ratio, raw material plate shape situation etc.The present embodiment is the test carried out on the Reversible Single Stand Cold Rolling Mill of 1450mm, and the bending roller force of working roll when milling train stops is generally between 80 ~ 180kN, and the bending roller force of intermediate calender rolls is generally between 200 ~ 350kN.
After compressor emergency shutdown; emulsified liquid injection gear 8 reduces to initial flow; the size of this flow both ensure that the upper and lower surface of band steel, mill roll-gap place had enough emulsions to lubricate, and can not to pollute outside frame because of too large to flow out to along band steel of emulsion flow and to waste again.Because roll-force when the first passage closes roll gap whipping is comparatively large, if emulsion does not spray or injection flow is too little, can not form uniform oil film at belt steel surface, its lubricant effect is very poor, work roll surface roughness can be caused to decline very fast.Its result is exactly to adopt when closing roll gap whipping a pair working roll can the band coil of strip number of normal rolling, and being obviously less than when roll gap whipping is opened in employing can the band coil of strip number of normal rolling.First passage adopts when closing the rolling of roll gap whipping, after work roll surface roughness significantly declines, then when continuing rolled band steel, just easily occurs the phenomenon of roll slippage when milling train cycling start and acceleration and deceleration, and this time just can only roll change, adds roller and consumes.In addition, if close roll gap whipping emulsion to stop spraying, also have emulsion remaining in pipeline with steel upper surface to flow down, band steel lower surface does not just have emulsion, cause like this working roll and band steel appear in band steel lower surface " dry roll " due to not lubrication, result generating strap steel scratch on the bottom surface.For these problems, when the first passage closes the rolling of roll gap whipping, emulsion must keep spraying, and injection flow should ensure the sufficient lubrication of being with the upper and lower surface of steel, and emulsion can not be caused again to flow out frame in a large number and produce waste.After whipping completes, close emulsion again spray.
The present embodiment is the test carried out on the Reversible Single Stand Cold Rolling Mill of 1450mm, and the initial flow of emulsion is between 2500 ~ 3500l/min.
Step S108, the reverse threading of second passage is that the equipment between associating crawl entrance coiling machine 4 (not comprising entrance coiling machine 4) to outlet coiling machine 12 will take the lead to send into the jaw of entrance coiling machine 4, in crossing process, roll gap keeps being pressed down to less roll-force, and adopt Constant dvaught pressure control pattern, working roll and intermediate calender rolls keep equilibrant force size, this equilibrant force is much smaller than bending roller force, this less roll-force is mainly with the stable of steel position to ensure, because lose a position change causing centering of strip steel completely when avoiding roll gap to open.
Reversable cold-rolling machine first passage of the present invention closes roll gap whipping milling method can finely control the rolling of band steel whipping, reduce magnetic tape trailer loss, and the band steel after rolling due to plate shape and surface quality all good than the band steel do not rolled, can roll tightly on entrance coiling machine, when carrying out second time rolling after reverse threading, cycling start and acceleration all can not cause the skidding of inner ring of steel coil on entrance coiling machine, are conducive to the stable rolling of milling train.
Entrance turning, clamping and conveying roll-in roller 5 has and pinches position 502, turns to operating position, 501 two, position, in one alternate embodiment, before first passage closes roll gap whipping, entrance turning, clamping and conveying roll-in roller 5 is swung to and turns to position 501, then pressure also holddown belt steel, such entrance turning, clamping and conveying roll-in roller 5 can provide larger cornerite, form large thrust, thus whipping rolling is stablized by control cincture steel to band steel.
In one alternate embodiment, the first passage is closed in the roll gap whipping operation of rolling, if magnetic tape trailer thickness super thick is more or plate shape is poor, in whipping process, band steel may sideslip, causes leading 6 place's scrapings at entrance side, so entrance side to be led 6 states being set to open completely.
In one alternate embodiment, after milling train stops, for emulsion residual in pipeline after preventing emulsion stop-spraying flows out to outside frame along band steel, continue to purge a period of time with band steel blow device 9, until emulsion droplet residual in pipeline to be fallen on band steel all in the catch tray that steel edge portion flows to below frame.
In one alternate embodiment, when being with steel to leave the region of uncoiler 1, the drum collapsing of uncoiler 1, uncoiler pressure roller 2 and uncoiling pinch roll pressure roller 3 are opened to limes superiors, and the outer support of uncoiler 1 is opened to extreme position, wait for the upper volume of next coiled strip steel.
In one alternate embodiment, as shown in Figure 2, when magnetic tape trailer moves to the right from left side, time before magnetic tape trailer moves to entrance turning, clamping and conveying roller 5, unit stops, and mill roll-gap is opened to less roll-force, and working roll and intermediate calender rolls bending roller force switch to equilibrant force, entrance pressing plate platform top board 7 is raised to upper extreme position, and now rolling is complete.Like this, the magnetic tape trailer on the right side of operation roll of mill has obtained whipping rolling all.
In one alternate embodiment; as shown in Figure 2; if think the lumber recovery improving milling train further; can not shut down when magnetic tape trailer moves to entrance turning, clamping and conveying roller 5; and will shut down again before magnetic tape trailer whipping to entrance pressing plate platform top board 7; that is, the magnetic tape trailer on the left of entrance turning, clamping and conveying roller 5 can continue to move to entrance pressing plate platform top board 7 to the right, can continue the magnetic tape trailer length that rolling is about 3m like this.
Reversable cold-rolling machine first passage of the present invention closes roll gap whipping milling method simple and fast, is convenient to control and operation, can realize again the stable rolling of magnetic tape trailer, effectively improve the lumber recovery of unit, reduce production cost while not increasing product quality problem.
In sum, close roll gap whipping milling method by reversable cold-rolling machine first passage of the present invention and achieve following technique effect:
1. realize the stable rolling of magnetic tape trailer, effectively improve the lumber recovery of unit, reduce production cost;
2. because through the plate shape of whipping rolling and surface quality good, so entrance coiling machine inner ring of steel coil can not skid when the second passage cycling start and increasing speed rolling, as-rolled condition is stablized.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. reversable cold-rolling machine first passage closes a roll gap whipping milling method, it is characterized in that, comprises the following steps:
Before first passage closes roll gap whipping, be low-speed running by unit reduction of speed, control uncoiler pressure roller, uncoiling pinch roll pressure roller, entrance turning, clamping and conveying roll-in roller, outlet turning, clamping and conveying roll-in roller and outlet coiler press-roller holddown belt steel, can retainer belt steel position stable when uncoiler loses, and provide tension force for closing roll gap whipping;
After uncoiler loses, compressor emergency shutdown, provides tension force by the pressure of entrance pressing plate platform, and outlet coiling machine keeps tensioning state, and making in whipping process can stable rolling;
First passage is closed in roll gap whipping process, constant roll-force control model is adopted to control mill roll-gap, while thinning magnetic tape trailer, avoid again magnetic tape trailer thickness fluctuation on the impact of as-rolled condition, and working roll and intermediate calender rolls are set to be subject to bending roller force, prevent strip running deviation, emulsion is sprayed to band steel, ensures the upper and lower surperficial sufficient lubrication of band steel;
First passage close roll gap whipping complete time, reduce the roll-force of mill roll-gap, and adopt constant roll-force control model, working roll and intermediate calender rolls are set to be subject to equilibrant force, ensure the stable of when the second passage reverse threading band steel position.
2. method according to claim 1, is characterized in that, before the first passage closes roll gap whipping, the action of entrance turning, clamping and conveying roll-in roller comprises described entrance turning, clamping and conveying roll-in roller to swing to and turns to position, thus holddown belt steel.
3. method according to claim 1, is characterized in that, the first passage is closed in roll gap whipping journey, and for the band steel of the thickness super thick of magnetic tape trailer and/or the poor band steel of plate shape, entrance side leads the state that maintenance is opened completely.
4. method according to claim 1, is characterized in that, after the first passage closes roll gap whipping, for preventing the emulsion remained from flowing out to outside frame, continues to purge a period of time with band steel blow device.
5. method according to claim 1, is characterized in that, when being with steel to leave the region of uncoiler, uncoiler pressure roller and uncoiling pinch roll pressure roller are opened to upper extreme position, and the outer support of uncoiler is opened to extreme position.
6. method according to claim 1, is characterized in that, the first passage close roll gap whipping complete time, magnetic tape trailer run to close to during entrance turning, clamping and conveying roller by compressor emergency shutdown.
7. method according to claim 1, is characterized in that, the first passage close roll gap whipping complete time, magnetic tape trailer run to close to during entrance pressing plate platform top board by compressor emergency shutdown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510996877.5A CN105478473B (en) | 2015-12-25 | 2015-12-25 | The passage of reversable cold-rolling machine first closes roll gap whipping milling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510996877.5A CN105478473B (en) | 2015-12-25 | 2015-12-25 | The passage of reversable cold-rolling machine first closes roll gap whipping milling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105478473A true CN105478473A (en) | 2016-04-13 |
| CN105478473B CN105478473B (en) | 2017-08-11 |
Family
ID=55665947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510996877.5A Active CN105478473B (en) | 2015-12-25 | 2015-12-25 | The passage of reversable cold-rolling machine first closes roll gap whipping milling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105478473B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728473A (en) * | 2016-04-25 | 2016-07-06 | 中冶南方工程技术有限公司 | Control method for preventing deviation of band steel in first-pass rolling procedures |
| CN110732557A (en) * | 2019-10-18 | 2020-01-31 | 首钢智新迁安电磁材料有限公司 | Full-automatic drift control method and system for cold rolling continuous annealing unit |
| CN112007950A (en) * | 2019-05-31 | 2020-12-01 | 上海梅山钢铁股份有限公司 | Rolling method of bundle strip steel with tensile strength of 500MPa |
| CN113020288A (en) * | 2021-03-01 | 2021-06-25 | 无锡普天铁心股份有限公司 | Rolled steel conveying tension reconstruction device |
| CN113083910A (en) * | 2021-03-09 | 2021-07-09 | 邯郸钢铁集团有限责任公司 | Method for controlling deviation and tearing of steel belt by stopping, recovering and starting 5-stand cold rolling mill |
| CN113210438A (en) * | 2021-05-20 | 2021-08-06 | 广西北港不锈钢有限公司 | High-speed rolling method of stainless steel cold-rolled sheet |
| CN114130822A (en) * | 2021-11-18 | 2022-03-04 | 山西太钢不锈钢股份有限公司 | Rolling efficiency improving method of stainless steel thick-specification cold plate uncoiler |
| CN114535296A (en) * | 2022-02-18 | 2022-05-27 | 河南中孚高精铝材有限公司 | Aluminum plate strip EDT surface rolling method |
| CN114535312A (en) * | 2020-11-24 | 2022-05-27 | 宝山钢铁股份有限公司 | Self-correcting method for coil diameter and coil length of strip steel of single-stand rolling mill |
| CN114669597A (en) * | 2022-03-15 | 2022-06-28 | 武汉钢铁有限公司 | Cold rolling single-stand rolling mill |
| CN114833199A (en) * | 2021-10-14 | 2022-08-02 | 天津市新宇彩板有限公司 | Control method and control system for tail flicking of right side of strip steel of acid continuous rolling unit |
| CN115532827A (en) * | 2022-10-31 | 2022-12-30 | 江苏贯森新材料科技有限公司 | Preparation method of ultrathin stainless steel band |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005088019A (en) * | 2003-09-12 | 2005-04-07 | Kobe Steel Ltd | Rolling mill |
| CN102728625A (en) * | 2012-06-19 | 2012-10-17 | 江苏省沙钢钢铁研究院有限公司 | Rough mill force balance control (RMFBC) method for two sides of hot rolled strip steel reversing rough mill |
| CN104259222A (en) * | 2014-10-22 | 2015-01-07 | 山东钢铁股份有限公司 | Reversing cold mill stabilizing rolling operation method |
| CN104384185A (en) * | 2014-11-27 | 2015-03-04 | 山东钢铁股份有限公司 | System and method for preventing one-pass drifting and off-tracking of reversing cold mill |
| CN105080967A (en) * | 2015-09-29 | 2015-11-25 | 山东钢铁股份有限公司 | Secondary rolling method of broken belt roll of single-rack reversible cold rolling mill |
-
2015
- 2015-12-25 CN CN201510996877.5A patent/CN105478473B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005088019A (en) * | 2003-09-12 | 2005-04-07 | Kobe Steel Ltd | Rolling mill |
| CN102728625A (en) * | 2012-06-19 | 2012-10-17 | 江苏省沙钢钢铁研究院有限公司 | Rough mill force balance control (RMFBC) method for two sides of hot rolled strip steel reversing rough mill |
| CN104259222A (en) * | 2014-10-22 | 2015-01-07 | 山东钢铁股份有限公司 | Reversing cold mill stabilizing rolling operation method |
| CN104384185A (en) * | 2014-11-27 | 2015-03-04 | 山东钢铁股份有限公司 | System and method for preventing one-pass drifting and off-tracking of reversing cold mill |
| CN105080967A (en) * | 2015-09-29 | 2015-11-25 | 山东钢铁股份有限公司 | Secondary rolling method of broken belt roll of single-rack reversible cold rolling mill |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728473A (en) * | 2016-04-25 | 2016-07-06 | 中冶南方工程技术有限公司 | Control method for preventing deviation of band steel in first-pass rolling procedures |
| CN112007950A (en) * | 2019-05-31 | 2020-12-01 | 上海梅山钢铁股份有限公司 | Rolling method of bundle strip steel with tensile strength of 500MPa |
| CN110732557A (en) * | 2019-10-18 | 2020-01-31 | 首钢智新迁安电磁材料有限公司 | Full-automatic drift control method and system for cold rolling continuous annealing unit |
| CN110732557B (en) * | 2019-10-18 | 2021-05-07 | 首钢智新迁安电磁材料有限公司 | Full-automatic drift control method and system for cold rolling continuous annealing unit |
| CN114535312A (en) * | 2020-11-24 | 2022-05-27 | 宝山钢铁股份有限公司 | Self-correcting method for coil diameter and coil length of strip steel of single-stand rolling mill |
| CN113020288B (en) * | 2021-03-01 | 2021-12-07 | 无锡普天铁心股份有限公司 | Rolled steel conveying tension reconstruction device |
| CN113020288A (en) * | 2021-03-01 | 2021-06-25 | 无锡普天铁心股份有限公司 | Rolled steel conveying tension reconstruction device |
| CN113083910B (en) * | 2021-03-09 | 2022-06-28 | 邯郸钢铁集团有限责任公司 | Method for controlling deviation and tearing of steel strip by stopping, re-producing and starting 5-stand cold rolling mill |
| CN113083910A (en) * | 2021-03-09 | 2021-07-09 | 邯郸钢铁集团有限责任公司 | Method for controlling deviation and tearing of steel belt by stopping, recovering and starting 5-stand cold rolling mill |
| CN113210438A (en) * | 2021-05-20 | 2021-08-06 | 广西北港不锈钢有限公司 | High-speed rolling method of stainless steel cold-rolled sheet |
| CN114833199A (en) * | 2021-10-14 | 2022-08-02 | 天津市新宇彩板有限公司 | Control method and control system for tail flicking of right side of strip steel of acid continuous rolling unit |
| CN114833199B (en) * | 2021-10-14 | 2024-02-06 | 天津市新宇彩板有限公司 | Control method and control system for tail flicking of right side of strip steel of acid tandem rolling unit |
| CN114130822A (en) * | 2021-11-18 | 2022-03-04 | 山西太钢不锈钢股份有限公司 | Rolling efficiency improving method of stainless steel thick-specification cold plate uncoiler |
| CN114535296A (en) * | 2022-02-18 | 2022-05-27 | 河南中孚高精铝材有限公司 | Aluminum plate strip EDT surface rolling method |
| CN114669597A (en) * | 2022-03-15 | 2022-06-28 | 武汉钢铁有限公司 | Cold rolling single-stand rolling mill |
| CN115532827A (en) * | 2022-10-31 | 2022-12-30 | 江苏贯森新材料科技有限公司 | Preparation method of ultrathin stainless steel band |
| CN115532827B (en) * | 2022-10-31 | 2023-09-15 | 江苏贯森新材料科技有限公司 | Preparation method of ultrathin stainless steel strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105478473B (en) | 2017-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105478473A (en) | First-pass closed roll gap tail-swing rolling method for reversible cold rolling mill | |
| CN101452297B (en) | Withdrawal roll pressure control method for coiler | |
| CN204583915U (en) | Hot-strip skin pass mill | |
| CN105312321A (en) | Method for optimizing technological lubrication system of cold continuous rolling unit | |
| CN102039330A (en) | Parameter setting method of hot continuous rolling thin slab coiling device and coiling method of hot continuous rolling thin slab | |
| ITRM20070150A1 (en) | PROCESS AND PLANT FOR THE PRODUCTION OF METAL TAPES | |
| CN103521519A (en) | Cold-rolled steel strip rolling method | |
| CN111389908B (en) | Method for improving yield of single-stand reversing mill | |
| CN110918654B (en) | Threading control method and device | |
| CN106623508B (en) | Section straightener pinch roller upper roller fluid power system and its control method | |
| CN106180207A (en) | A kind of control system rolling plate thickness | |
| CN105728473A (en) | Control method for preventing deviation of band steel in first-pass rolling procedures | |
| CN203461581U (en) | Embedded numerical control non-stop feeding device for bag making machine | |
| CN106424157A (en) | Control method and device for preventing working roll of temper mill from being scratched | |
| CN103537487A (en) | Method for controlling tension between last two racks of multiple-rack rolling mill | |
| CA2463962A1 (en) | Method and device for the continuous production of a rolled metal strip from a molten metal | |
| TW201938286A (en) | Steel piece manufacturing method and continuous casting facility | |
| CN103861873A (en) | Texturing roll rolling system and method of UCMW tandem cold rolling mill | |
| CN108213078B (en) | The control method of the anti-long-pending band of Cold-Rolled Strip Temper Mill entrance jockey pulley | |
| CN104492816B (en) | A kind of method of broken belt threading | |
| CN202824106U (en) | Anti-wrinkle roller constant pressure follow-up control device for metal strip temper mill unit | |
| CN103612123B (en) | A kind of with steel slitting line and the adjustment method reducing its operating noise | |
| CN114289545B (en) | Device for preventing high-strength coil from being unwound in coiling and coil unloading and working method | |
| JP3580282B2 (en) | Hot rolling system, run-out table passing method, and method of manufacturing rolled plate | |
| JP2013233588A (en) | Method of manufacturing hot rolled steel strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |