CN107030109B - A kind of single reversing hot mill with coilers located on each side of the mill cold burden band load test run method - Google Patents
A kind of single reversing hot mill with coilers located on each side of the mill cold burden band load test run method Download PDFInfo
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- CN107030109B CN107030109B CN201710458466.XA CN201710458466A CN107030109B CN 107030109 B CN107030109 B CN 107030109B CN 201710458466 A CN201710458466 A CN 201710458466A CN 107030109 B CN107030109 B CN 107030109B
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- 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
- B21B1/34—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 hot-rolling
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Abstract
A kind of metal working technical area of the present invention, and in particular to single reversing hot mill with coilers located on each side of the mill cold burden band load test run method, comprising the following steps: step 1, feeding；Step 2, threading: the material head feeding roller gap that aluminium roll up by the material head of aluminium volume by the clamping/opening action of manipulator repeatedly, spool starts to roll after tensing coiled material after reverse engine, before machine before guide ruler and machine pinch roller by rolling-assisting device after the material head feeding machine shut out, band is sent in stopping, and threading terminates；Step 3, the first passes: lifting pinch roller to local derviation position, hot-rolling mill increasing speed rolling, when rolling material tail leaves spool after machine, reduces rapidly mill speed, and material tail leaves and stopped after machine after working roll；Step 4, the second passes.Above-mentioned cold burden band carries test run method and solves hot material debugging ingot casting thickness, temperature height, increases if there is plant issue reparation difficulty and slab ingot temperature reduces, cannot normally roll, bring this two hang-up of inconvenience to equipment reparation and processing board ingot process.
Description
Technical field
A kind of metal working technical area of the present invention, and in particular to single reversing hot mill with coilers located on each side of the mill cold burden band load test run side
Method.
Background technique
Single-frame double-coiling aluminium hot-rolling mill becomes the first-selected type of numerous aluminium processing enterprises production hot-rolled product.Domestic aluminothermy
Rolling mill strip carries debugging and generally directlys adopt hot ingot casting, and commissioning process is by the factors shadow such as ingot casting temperature, rolling time, status of equipment
Ring, if occurring equipment fault in commissioning process, with the length of emergency repair time, ingot casting temperature is gradually decreased, be just difficult according to
Established soft reduction process continues test run, and ingot casting is thick, temperature is high, increases the difficulty of maintenance personnel's prosthetic appliance；Slab ingot
Roller-way is stopped for a long time, since the thin and thick of slab ingot, length not etc. are not difficult to cut, to equipment reparation and subsequent processing plate ingot process band
Carry out inconvenience.It in commissioning process, on the one hand to avoid the above problem occur in hot material test run, be verified again by test run
Hot-rolling mill curling, which is built, opens, depresses the equipment such as roll gap swing, the linkage of entrance curled regions, end trimming shears, centering guide ruler, coil stripping car
Service performance, heat carry test run and have had resulted in inconvenience, cause serious influence for large-scale production.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of single reversing hot mill with coilers located on each side of the mill cold burden bands to carry test run side
Method, comprising the following steps:
Step 1, feeding: being placed on spool after the machine of hot-rolling mill for aluminium to be rolled volume, aluminium is rolled up slowly rotation uncoiling and will
Pinch roller is sent into aluminium volume outer ring by the outer ring flattening of aluminium volume, rotating scroll, and when aluminium volume outer ring head passes through pinch roller, spool stops
Rotation stop is dynamic, and upper bottom pinch roll clamps material head, and the aluminium volume is that cold conditions casting is rolled up；
Step 2, threading: the material head of aluminium volume is sent into roll by the material head that the clamping/opening action of manipulator repeatedly rolls up aluminium
Roll gap, spool tenses coiled material after reverse engine, starts to roll after establishing tension, the material that pinch roller will be shut out before guide ruler and machine before machine
Rolling-assisting device after head feeding machine, aluminium coiled strip head batched on rolling-assisting device after machine 2~3 enclose and confirm and roll tightly after, band, threading knot are sent in stopping
Beam；
Step 3, the first passes: pinch roller is lifted to local derviation position, hot-rolling mill increasing speed rolling, controlling machine forward pull is
900Mpa, i.e., the 9 tons of pressure often said in engineering, machine backward pull are 1000MPa, i.e., the 10 tons of pressure often said in engineering, rolling material
When tail leaves spool after machine, mill speed is reduced rapidly, material tail leaves and stopped after machine after working roll；
Step 4, the pressure of milling train is adjusted to the Roll-gap position of the second passage by the second passes, repeats step 1~step
Rapid 3 action process.
Above-mentioned cold burden band carries test run method and solves hot material debugging ingot casting thickness, temperature height, repairs if there is plant issue
Multiple difficulty increases and slab ingot temperature reduces, and cannot normally roll, to equipment reparation and processing board ingot process bring it is many not
Just this two hang-up.
The technical parameter of single reversing hot mill with coilers located on each side of the mill of the present invention is as shown in table 1, product technology of the invention
Data are referring to table 2, and blank specification of the invention and reduction system are referring to table 3.
The technical data sheet of 1 single reversing hot mill with coilers located on each side of the mill of table
2 product technology tables of data of table
3 blank specification of table and reduction system
Further, step 1 includes the following steps:
Step 1.1, aluminium volume to be rolled is sling with C-shaped hook, is placed on after machine on transfer bogie.
Step 1.2, it with pincers are embraced by spool after aluminium volume holding feeding machine, cuts steel band and extracts out, it is a little to embrace pincers for spool distending
It unclamping, spool slowly rotates uncoiling, is flattened with the outer ring that tool rolls up aluminium, flattens 800~1000mm of length, and it embraces pincers and retracts, and
Lift expansion bearing.
Step 1.3, slowly spool is by aluminium volume outer ring feeding pinch roller after rotating machine, when aluminium volume outer ring head passes through pinch roller
When, spool stops operating, and upper bottom pinch roll clamps material head.
Further, step 2 includes the following steps:
Step 2.1, spool slowly rotates again after machine, and as material head moves forward, manipulator starts to beat material head clamping/opening
The degree opened can allow plate to pass through, then the material head that aluminium is rolled up slowly is sent into roller by clamping/opening perseveration
Seam；The step can reduce the swing space of plate in the direction of the width to the greatest extent.
Step 2.2, so that the roll gap of roll is rested on the position 50mm, aluminium coiled strip head can be allowed to can smoothly enter into seam roller, confirmation material
Spool stops operating after head is in upper and lower working roll middle position opportunity；
Step 2.3, adjustment roll gap is to the first passage depressing position, and after having roll-force, spool draws coiled material after reverse engine
Tightly, initial backward pull is established, starts to roll, speed control is in 5-10m/min；
Step 2.4, wrapper is in and helps volume state before machine, and the material head that guide ruler starts to shut out before machine is clamped/opens,
And by clamping/opening perseveration, by pinch roller before material head slowly feeding machine.
Step 2.5, mill speed control is in 10m/min, pinch roller before material head is sent to machine, and pinches before starting machine simultaneously
Roller, by rolling-assisting device before material head clamping feeding machine.
Step 2.6, after rolling-assisting device batches 2~3 circles, and confirmation rolls tightly, the pressure head of rolling-assisting device before machine is opened, rolling-assisting device moves back
Position is returned to, milling train stops measurement plate thickness.
Further, step 3 includes the following steps:
Step 3.1, after threading, roll gap is further adjusted to the first passage depressing position, milling train starts, and lifts pinch
Roller is to local derviation position, and milling train raising speed to 30m/min, the control of machine forward pull is in 9T, and the control of machine backward pull is in 10T；
Step 3.2, when rolling material tail leaves spool after machine, mill speed is down to 5m/min rapidly, with guide ruler after opportunity
As far as possible close to material head, to prevent material head swing.It stops immediately when working roll about 200~300mm after expecting that tail is disembarked.
Further, step 4 includes the following steps:
Step 4.1, the pressure of milling train is adjusted to the Roll-gap position of the second passage, starts milling train, while disk being sheared
Machine is adjusted to 1460mm；
Step 4.2, circle shears are started, mill speed is 5m/min at this time for control.
Step 4.3, when material head is entangled in spool volume 3~4, rolling-assisting device is retracted, and mill speed rises to 30m/min, and investment is thick
It spends controller and carries out overall process thickness control.Occur intervening manually when abnormal emergency in control process, prevents and break
Equipment breakdown measures rolling thickness after rolling, the second passage machine forward pull is 7T, and machine backward pull is 6T.
Further, the convexity of the support roller of the single reversing hot mill with coilers located on each side of the mill is 0.3mm, the convexity of working roll
For -0.1mm.Above-mentioned convexity setting can guarantee that rolled slab has good camber, and meet combination product positioning, roll
Roll crown setting can also be adjusted according to production actual conditions.
Further, the blank ingoing ga(u)ge of the first passage is 7.5mm, outgoing gauge 5.5mm.
Further, the blank ingoing ga(u)ge of the second passage is 5.5mm, outgoing gauge 4.0mm, and unilateral trimming amount is
30mm。
Further, aluminum cold-rolling mill lubricant medium often selects ROLLING OIL, and aluminium hot-rolling mill lubricant medium often selects emulsion, such as
Fruit cold rolling test run and lotion fuel tank is injected into ROLLING OIL, the later period is changed to emulsion again, and loss brings greatly very much inconvenience.Because testing
Card hot-rolling mill curling, which builds to open, depress roll gap swing, the linkage of entrance curled regions, end trimming shears, centering guide ruler, coil stripping car etc., to be set
Standby service performance is not necessarily to too high mill speed, determines hand spray lubricant medium, on working roll and support roller roll surface
Even smearing crude oil for emulsion, in the entrance side rolled per pass manually with the up and down plate face even application crude oil for emulsion of watering can.
By practical debugging verifying, single reversing hot mill with coilers located on each side of the mill cold burden band of the present invention carries test run method by using cold conditions
Casting volume is carried out the pre- test run of aluminium hot-rolling mill and had the advantage that compared with directly being debugged using hot material
1) hot material debugging ingot casting is thick, temperature is high, repairs difficulty if there is plant issue and increases；Slab ingot temperature reduces,
It cannot normally roll, bring inconvenience to equipment reparation and processing board ingot process.Using the pre- test run of cold burden, avoid or reduce
Directly there are two above-mentioned problems using hot material debugging.
2) debugging materials debug blank dosage by being reduced to current more than ten tons with the average tons up to a hundred of hot material in industry
Few, the consumption of water, electricity, gas etc. is few, omits and heats energy consumption, greatly reduces the test run cost of enterprise.
3), which there is plant issue, in cold burden debugging process to be handled at any time with This vehicle stops frequently, convenient to be adjusted to equipment.If
Vehicle open rolling can be continued after standby troubleshooting is complete, manipulation is flexibly, conveniently.
4) smart debug time is only 2 days after cold burden milling train linkage debugging of the invention, far below tens days in industry or
Some months, much hiding plant issue carries test run by cold burden band and is exposed, and is handled in time, substantially reduces hot material
With the time for carrying debugging.
Detailed description of the invention
Fig. 1: a position is respectively taken in the camber calculating process for the band that the embodiment of the present invention 1 rolls and respectively takes a position
The schematic diagram of thickness value.
Specific embodiment
The present invention is described in further detail below by specific embodiment.
A kind of embodiment 1: single reversing hot mill with coilers located on each side of the mill cold burden band load test run method, comprising the following steps:
(1) aluminium volume to be rolled is sling with C-shaped hook, is placed on after machine on transfer bogie.
(2) it with pincers are embraced by spool after aluminium volume holding feeding machine, cuts steel band and extracts out, spool distending embraces a little release of pincers,
Spool slowly rotates uncoiling, is flattened with the outer ring that tool rolls up aluminium, flattens 800~1000mm of length, embraces pincers and retracts, and lifts work
Dynamic bearing.
(3) slowly spool rolls up aluminium volume outer ring feeding pinch roller when aluminium volume outer ring head passes through pinch roller after rotating machine
Axis stops operating, and upper bottom pinch roll clamps material head.
(4) spool slowly rotates again after machine, and as material head moves forward, manipulator starts material head clamping/opening, the journey of opening
Degree can allow plate to pass through, then the material head that aluminium is rolled up slowly is sent into roller gap by clamping/opening perseveration；The step
Suddenly the swing space of plate in the direction of the width can be reduced to the greatest extent.
(5) so that the roll gap of roll is rested on the position 50mm, aluminium coiled strip head can be allowed to can smoothly enter into seam roller, confirmation material head is in
Spool stops operating after upper and lower working roll middle position opportunity；
(6) for adjustment roll gap to the first passage depressing position, after having roll-force, spool tenses coiled material after reverse engine, builds
Initial backward pull is found, starts to roll, speed control is in 5-10m/min；
(7) wrapper is in and helps volume state before machine, and the material head that guide ruler starts to shut out before machine is clamped/opens, and leads to
Clamping/opening perseveration is crossed, by pinch roller before material head slowly feeding machine.
(8) mill speed control is in 10m/min, pinch roller before material head is sent to machine, and starts pinch roller before machine simultaneously, will
Material head clamps rolling-assisting device before feeding machine.
(9) after rolling-assisting device batches 2~3 circles, and confirmation rolls tightly, the pressure head of rolling-assisting device before machine is opened, rolling-assisting device returns to
Position, milling train stop measurement plate thickness.
(10) further adjustment roll gap starts to the first passage depressing position, milling train, lifts pinch roller to local derviation position, roll
Machine raising speed to 30m/min, the control of machine forward pull is controlled in 900Mpa, machine backward pull in 1000Mpa；
(11) when rolling material tail leaves spool after machine, mill speed is down to 5m/min rapidly, as far as possible with guide ruler after opportunity
Close to material head, to prevent material head swing.It stops immediately when working roll about 200~300mm after expecting that tail is disembarked.
(12) pressure of milling train is adjusted to the Roll-gap position of the second passage, starts milling train, it is same to carry out above steps
Operational motion, while circle shears being adjusted to 1460mm；
(13) circle shears are started, mill speed is 5m/min at this time for control.
(14) when material head is entangled in spool volume 3~4, rolling-assisting device is retracted, and mill speed rises to 30m/min, puts into thickness control
Instrument processed carries out overall process thickness control.Occur intervening manually when abnormal emergency in control process, prevents and break equipment
Accident measures rolling thickness after rolling, the second passage machine forward pull is 7T, and machine backward pull is 6T.
It through test run method provided in an embodiment of the present invention, carries and debugs through first volume cold burden band, at hiding plant issue
After the completion of reason, and volume Two cold burden is rolled with identical method, the operation of rolling does not occur above equipment problem, subsequent to use hot material
Further debugging, hot material ingot bar specification are that 485 DEG C of 400 × 1550 × 5000 tapping temperature relatively smoothly completes rolling, are able to primary
Property is succeeded in the test run.
Running parameter monitoring in embodiment 2:wincc monitoring system commissioning process
Commissioning process is carried by the cold burden band of single reversing hot mill with coilers located on each side of the mill in embodiment 1 that wincc monitoring system obtains
In running parameter it is as shown in table 4, from 4 data of table it is found that in commissioning process two passages every electric current index and rolling
Speed is in normal fluctuation range.
The two-way curly course wincc of table 4 shows data fluctuations range
Embodiment 3: the measurement of camber
The camber of Strip is also convexity rate or strip crown.Camber mainly study thickness of strip transversely section point
Cloth variation, it is the difference of band interior thickness and edge thickness average value and the ratio of interior thickness.To institute after 1 test run of embodiment
The required test point of the band obtained measures measuring and calculating respectively, takes a position and each thickness value for taking a position during calculating
It is labeled in Fig. 1.
Through calculating, the camber of resulting band is 0.65% after 1 test run of embodiment.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of single reversing hot mill with coilers located on each side of the mill cold burden band carries test run method, which comprises the following steps:
Step 1, aluminium to be rolled: being rolled up spool after being placed on the machine of hot-rolling mill by feeding, and aluminium is rolled up slowly rotation uncoiling and rolls up aluminium
Outer ring flattening, rotating scroll by aluminium volume outer ring be sent into pinch roller, when aluminium volume outer ring head pass through pinch roller when, spool stop turn
Dynamic, upper bottom pinch roll clamps material head, and the aluminium volume is that cold conditions casting is rolled up；
Step 2, threading: the material head of aluminium volume is sent into roller gap by the material head that the clamping/opening action of manipulator repeatedly rolls up aluminium,
Spool tenses coiled material after reverse engine, starts to roll after establishing tension, and pinch roller send the material head shut out before guide ruler and machine before machine
Enter rolling-assisting device after machine, aluminium coiled strip head batched on rolling-assisting device after machine 2-3 enclose and confirm and roll tightly after, band is sent in stopping, and threading terminates；
Step 3, the first passes: pinch roller is lifted to local derviation position, hot-rolling mill increasing speed rolling, controlling machine forward pull is
900MPa, machine backward pull is 1000MPa, when rolling material tail leaves spool after machine, mill speed is reduced rapidly, after material tail leaves machine
It stops after working roll；
Step 4, the pressure of milling train is adjusted to the Roll-gap position of the second passage by the second passes, repeats step 1~step 3
Action process.
2. single reversing hot mill with coilers located on each side of the mill cold burden band according to claim 1 carries test run method, which is characterized in that step 1
Include the following steps:
Step 1.1, aluminium volume to be rolled is sling with C-shaped hook, is placed on after machine on transfer bogie；
Step 1.2, it with pincers are embraced by spool after aluminium volume holding feeding machine, cuts steel band and extracts out, it is a little loose to embrace pincers for spool distending
It opens, spool slowly rotates uncoiling, is flattened with the outer ring that tool rolls up aluminium, flattens 800~1000mm of length, embraces pincers and retracts, and lifts
Play expansion bearing；
Step 1.3, slowly spool is by aluminium volume outer ring feeding pinch roller after rotating machine, when aluminium volume outer ring head passes through pinch roller,
Spool stops operating, and upper bottom pinch roll clamps material head.
3. single reversing hot mill with coilers located on each side of the mill cold burden band according to claim 1 carries test run method, which is characterized in that step 2
Include the following steps:
Step 2.1, spool slowly rotates again after machine, and as material head moves forward, manipulator starts material head clamping/opening, opening
Degree can allow plate to pass through, then the material head that aluminium is rolled up slowly is sent into roller gap by clamping/opening perseveration；
Step 2.2, the roll gap of roll is made to rest on the position 50mm, after confirmation material head is in upper and lower working roll middle position opportunity
Spool stops operating；
Step 2.3, for adjustment roll gap to the first passage depressing position, after having roll-force, spool tenses coiled material after reverse engine, builds
Initial backward pull is found, starts to roll, speed control is in 5-10m/min；
Step 2.4, wrapper is in and helps volume state before machine, and the material head that guide ruler starts to shut out before machine is clamped/opens, and leads to
Clamping/opening perseveration is crossed, by pinch roller before material head slowly feeding machine；
Step 2.5, mill speed control is in 10m/min, pinch roller before material head is sent to machine, and starts pinch roller before machine simultaneously,
By rolling-assisting device before material head clamping feeding machine；
Step 2.6, after rolling-assisting device batches 2~3 circles, and confirmation rolls tightly, the pressure head of rolling-assisting device before machine is opened, rolling-assisting device returns to
Position, milling train stop measurement plate thickness.
4. single reversing hot mill with coilers located on each side of the mill cold burden band according to claim 1 carries test run method, which is characterized in that step 3
Include the following steps:
Step 3.1, after threading, roll gap is further adjusted to the first passage depressing position, milling train starts, lifts pinch roller and arrive
Local derviation position, milling train raising speed to 30m/min, the control of machine forward pull are controlled in 9T, machine backward pull in 10T；
Step 3.2, when rolling material tail leaves spool after machine, mill speed is down to 5m/min rapidly, as far as possible with guide ruler after opportunity
Close to material head, stop immediately when working roll about 200~300mm after expecting that tail is disembarked.
5. single reversing hot mill with coilers located on each side of the mill cold burden band according to claim 1 carries test run method, which is characterized in that step 4
Include the following steps:
Step 4.1, the pressure of milling train is adjusted to the Roll-gap position of the second passage, starts milling train, while by circle shears tune
It is whole to 1460mm；
Step 4.2, circle shears are started, mill speed is 5m/min at this time for control；
Step 4.3, when material head is entangled in spool volume 3~4, rolling-assisting device is retracted, and mill speed rises to 30m/min, puts into thickness control
Instrument processed carries out overall process thickness control, and rolling thickness is measured after rolling, and the second passage machine forward pull is 7T, and machine backward pull is 6T.
6. described in any item single reversing hot mill with coilers located on each side of the mill cold burden bands carry test run method according to claim 1~5, feature exists
In the convexity of the support roller of the single reversing hot mill with coilers located on each side of the mill is 0.3mm, and the convexity of working roll is -0.1mm.
7. single reversing hot mill with coilers located on each side of the mill cold burden band according to claim 6 carries test run method, which is characterized in that first
Secondary blank ingoing ga(u)ge is 7.5mm, outgoing gauge 5.5mm.
8. single reversing hot mill with coilers located on each side of the mill cold burden band according to claim 7 carries test run method, which is characterized in that second
Secondary blank ingoing ga(u)ge is 5.5mm, and outgoing gauge 4.0mm, unilateral trimming amount is 30mm.
9. single reversing hot mill with coilers located on each side of the mill cold burden band according to claim 1 carries test run method, which is characterized in that in test run
Process is lubricated single reversing hot mill with coilers located on each side of the mill by hand spray lubricant medium, on working roll and support roller roll surface
Even smearing crude oil for emulsion, in the entrance side rolled per pass manually with the up and down plate face even application crude oil for emulsion of watering can.
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| JP3929147B2 (en) * | 1997-11-11 | 2007-06-13 | 石川島播磨重工業株式会社 | Winding equipment |
| DE10349950A1 (en) * | 2003-10-24 | 2005-05-25 | Sms Demag Ag | Rolling mill for warm rolling of metals, including a hot strip roll chain, and blooming and finishing roll chains useful in rolling Al |
| CN100998995A (en) * | 2006-09-06 | 2007-07-18 | 中铝西南铝板带有限公司 | Temperature control system of milling uluminium/aluminium alloy coiled material and control method |
| CN104001734B (en) * | 2014-04-01 | 2016-04-20 | 首钢京唐钢铁联合有限责任公司 | A kind of hot-rolled coiling clamp roller pressure levelling device and control method |
| CN204892554U (en) * | 2015-08-28 | 2015-12-23 | 武汉钢铁(集团)公司 | Mill train |
| CN105903765A (en) * | 2016-04-27 | 2016-08-31 | 海安县华达铝型材有限公司 | Aluminum alloy strip rolling production line |
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