CN109500096A - Prevent special steel from batching the control method and its control system of flat volume - Google Patents
Prevent special steel from batching the control method and its control system of flat volume Download PDFInfo
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- CN109500096A CN109500096A CN201811465102.5A CN201811465102A CN109500096A CN 109500096 A CN109500096 A CN 109500096A CN 201811465102 A CN201811465102 A CN 201811465102A CN 109500096 A CN109500096 A CN 109500096A
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- volume
- unloaded
- program
- delay
- strip
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- 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
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- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The present invention relates to hot-continuous-rolling strip steel taking-up equipment field more particularly to a kind of control methods and its control system for preventing special steel from batching flat volume.Wherein, the control method includes: that volume is unloaded in (1) starting；(2) the material code of coil of strip to be unloaded is compared with preset material code, if the material code of the coil of strip to be unloaded is equal to the preset material code, executes delay and unload volume program；Otherwise, it executes and unloads volume program；(3) after volume EP (end of program) is unloaded in the delay, volume program is unloaded in execution.The present invention solves after the completion of special steel batches that become flat volume and flat the volume scroll that leads to problems such as to dispatch from the factory off quality for walking process forward with conveyer chain, meets production requirement.
Description
Technical field
The present invention relates to hot-continuous-rolling strip steel taking-up equipment field more particularly to a kind of controls for preventing special steel from batching flat volume
Method and its control system.
Background technique
After hot continuous rolling coiling machine has rolled up high temperature high-carbon and dual phase steel, round neat coil of strip is unloaded down from reel, with
Conveyer chain has slowly become flat volume (perpendicular diameter is less than horizontal diameter) during transporting forward, and due to steel grade characteristic band
The more high flat volume of steel coiling temperature is more serious (perpendicular diameter and horizontal diameter difference bigger), so as to cause scroll qualification rate significantly under
Drop, seriously affects the lower process quality of production.Therefore, how to solve such special steel unload volume after occur flat volume phenomenon be we work
Target.
Summary of the invention
The purpose of the present invention is in view of the drawbacks of the prior art, provide a kind of controlling party for preventing special steel from batching flat volume
Method and its control system.
Specifically, a kind of control method for preventing the flat volume of special strip of the invention, comprising:
(1) volume is unloaded in starting；
(2) the material code of coil of strip to be unloaded is compared with preset material code, if the material of the coil of strip to be unloaded
Code is equal to the preset material code, then executes delay and unload volume program；Otherwise, it executes and unloads volume program；
(3) after volume EP (end of program) is unloaded in the delay, volume program is unloaded in execution.
The above-mentioned control method for preventing the flat volume of special strip, the preset material code be high-carbon steel, dual phase steel and
The material code of magnetic pole steel.
The above-mentioned control method for preventing the flat volume of special strip, the preset material code be 9SiCr, Q345B,
One of T800NH and 50Cr34 or a variety of.
The length and volume for unloading volume delay of volume program are unloaded in the above-mentioned control method for preventing the flat volume of special strip, the delay
Take target temperature directly proportional.
The above-mentioned control method for preventing the flat volume of special strip, the target temperature that batches are described to unload at 700 DEG C or more
Roll up delay >=150s；Described when to batch target temperature be 650-700 DEG C, described to unload volume delay be >=120s；It is described to batch target
It is described to unload volume delay >=90s when temperature is 600-650 DEG C.
The above-mentioned control method for preventing the flat volume of special strip, in the step (3), by batching on key frame HMI
Countdown display window judges that the delay unloads whether volume program terminates.
On the other hand, the control system provided by the invention for preventing the flat volume of special strip, comprising:
(1) volume program starting module is unloaded；
(2) first judgment module, for the material code of coil of strip to be unloaded to be compared with preset material code, if institute
The material code for stating coil of strip to be unloaded is equal to the preset material code, then executes delay and unload volume program；Otherwise, it executes and unloads volume journey
Sequence；
(3) second judgment modules, for judging that the delay unloads whether volume program terminates；
(4) volume program execution module is unloaded, after volume EP (end of program) is unloaded in the delay, volume program is unloaded in execution.
The control method for preventing special steel from batching flat volume of the invention and its control system have it is following the utility model has the advantages that
(1) the of the invention control method and its control system that prevent special steel from batching flat volume, by taking coil of strip rolling up
Cylinder position physics cooling method, solves after the completion of special steel batches that walking process becomes flat volume and flat volume and causes forward with conveyer chain
The problems such as factory's scroll is off quality reduces the objection of lower process client, meets production requirement；
(2) the of the invention control method and its control system that prevent special steel from batching flat volume, improve product scroll matter
Amount is avoided because adjustment burns the process control parameters such as steel temperature, coiling temperature and coiling tension to the performance and quality of product
Caused by adverse effect；
(3) the of the invention control method and its control system that prevent special steel from batching flat volume, it is ensured that hot rolling normal volume
Control is taken, scroll qualification rate is improved, reduces that drop is sentenced or entire volume sentences useless loss, obtains direct economic benefit annual 231.84 ten thousand
Member or so.
Detailed description of the invention
Fig. 1 is the control method flow diagram for preventing special steel from batching flat volume of the invention；
Fig. 2 is the schematic diagram of the control system for preventing special steel from batching flat volume of the invention；
Fig. 3 is the schematic diagram that key frame HMI coil stripping car and countdown display window are batched in one embodiment of the invention.
Specific embodiment
In order to fully understand the purpose of the present invention, feature and effect, by following specific embodiments, the present invention is made detailed
It describes in detail bright.For process of the invention in addition to following the description, remaining is all made of the conventional method or device of this field.Following nouns
Term is unless otherwise stated, all have the normally understood meaning of those skilled in the art.
The mentality of designing of the control method for preventing special steel from batching flat volume and its control system of the invention are as follows: according to cooling
The coil of strip drawn off after molding is unlikely to deform principle, and during unloading volume, automated procedures separate easily according to band steel material code area
The special steel grade that flat volume occurs determines coil of strip delay time on reel further according to the target temperature that batches of such special steel, prolongs
When after unload volume program and execute automatically and unload volume function, and then the such special coil of strip of guarantee constant flat volume during transportation.
On the one hand, as shown in Figure 1, the present invention provides a kind of control methods for preventing the flat volume of special strip, comprising:
(1) volume is unloaded in starting；
(2) the material code of coil of strip to be unloaded is compared with preset material code, if the material of the coil of strip to be unloaded
Code is equal to the preset material code, then executes delay and unload volume program；Otherwise, it executes and unloads volume program；
(3) after volume EP (end of program) is unloaded in the delay, volume program is unloaded in execution.
Wherein, Q is preset material code in Fig. 1.
The control method for preventing special steel from batching flat volume of the invention is realized by automatically controlling, by taking coil of strip rolling up
Cylinder position physics cooling method solves the problems, such as that walking process becomes flat volume forward with conveyer chain after the completion of special steel batches, and solves
Flat volume leads to problems such as factory scroll off quality, reduces the objection of lower process client.
In some embodiments, coiling machine is wrapped in the strip sent of finish rolling outlet is neat on reel, and reel is " right
After the completion of tail ", volume is unloaded in starting.Wherein, described " to tail " is that coil of strip rotates at a slow speed on reel, goes to clock seven to coil of strip tail portion
Point position, coil stripper car supporting roller compress the process of tail part of band steel.
In some embodiments, when control program receives " volume is unloaded in starting " signal, primary computer receives second level and calculates
The steel grade material code sent under machine, if the band steel material code currently batched is equal to preset material code, according to strip
Batch target temperature determine coil of strip be delayed on reel stop the regular hour after execute again unload volume instruction；If currently batched
Band steel material code is not equal to preset material code, then unloads volume program according to the execution of former control logic.
In some preferred embodiments, the preset material code is the material of high-carbon steel, dual phase steel and magnetic pole steel
Code.Wherein, the material code of high-carbon steel, dual phase steel and magnetic pole steel is 9SiCr, Q345B, T800NH, 50Cr34 and magnetic pole
One of steel series is a variety of.
Wherein, in further embodiments, preset material code may be the material code of other steel grades.
Wherein, the length for unloading volume delay that volume program is unloaded in the delay is determined according to spot sampling testing inspection.
Wherein, the length for unloading volume delay is directly proportional to target temperature is batched, it may be assumed that it is higher to batch target temperature, starts
The delay time for unloading volume is longer.Specifically, the target temperature that batches unloads volume delay >=150s at 700 DEG C or more；The volume
When to take target temperature be 650-700 DEG C, unloading volume delay is >=120s；It is described batch target temperature be 600-650 DEG C when, unload volume and prolong
When >=90s.
In some preferred embodiments, for the target temperature that batches at 700 DEG C or more, unloading volume delay is 150-
240s；It is described batch target temperature be 650-700 DEG C when, unload volume delay be 120-145s；The target temperature that batches is 600-
At 650 DEG C, unloading volume delay is 90-115s.
For example, in some embodiments, 9SiCr high-carbon steel batches target temperature at 700 degree or more, the residence time
Then need 150 seconds or more, preferably 200s；Q345B batches target temperature at 620 degree or more, then coil of strip is in the reel residence time
Need 90 seconds or more, preferably 90s.
In some preferred embodiments, as shown in figure 3, unloading whether normal, the example that licks journey in order to facilitate the operation of work
Such as: coil stripping car cannot be operating normally due to unload volume be abnormal cause or special steel need postpone unload volume.The present invention exists
Batch one countdown display window 2 of increase beside key frame HMI coil stripping car 1.When batching the spies such as high temperature high-carbon and dual phase steel
When different steel needs delay to unload volume, which simultaneously successively decreases, and control program automatically begins to hold after the time reduces to zero
Row unloads volume order.When countdown display window 2 is shown as 0 and coil stripping car is not normally functioning, then it is judged as and unloads curly hair life
It is abnormal, then guarantee that production is normally carried out using corresponding measure.
In other embodiments, other positions of the position of the countdown display window 2 in HMI key frame, sheet
Invention is not specifically limited herein.
On the other hand, as shown in Fig. 2, the invention discloses a kind of control systems for preventing the flat volume of special strip, comprising:
(1) volume program starting module is unloaded；
(2) first judgment module, for the material code of coil of strip to be unloaded to be compared with preset material code, if institute
The material code for stating coil of strip to be unloaded is equal to the preset material code, then executes delay and unload volume program；Otherwise, it executes and unloads volume journey
Sequence；
(3) second judgment modules, for judging that the delay unloads whether volume program terminates；
(4) volume program execution module is unloaded, after volume EP (end of program) is unloaded in the delay, volume program is unloaded in execution.
The control system for preventing the flat volume of special strip of the invention realizes and is started automatically according to coil of strip material code classification
Volume program is unloaded in delay, and determines that coil of strip stopped on reel unloads volume delay length according to strip coiling target temperature, is not only dropped
Low cost of labor, also efficiently solve coil of strip when the round roll unloaded down from reel is walked forward with conveyer chain gradually become it is flat
The problem of volume, improves coil of strip qualification rate.
The present invention is hereinbefore disclosed with preferred embodiment, but it should be understood by those skilled in the art that, these
Embodiment is only used for describing the present invention, but should not be understood as limiting the scope of the invention.It should be noted that all implement with these
Example equivalent variation and displacement, should all be set as being covered by scope of the presently claimed invention.Therefore, protection scope of the present invention
It should be subject to range defined in claims.
Claims (7)
1. a kind of control method for preventing the flat volume of special strip characterized by comprising
(1) volume is unloaded in starting；
(2) the material code of coil of strip to be unloaded is compared with preset material code, if the material code of the coil of strip to be unloaded
Equal to the preset material code, then executes delay and unload volume program；Otherwise, it executes and unloads volume program；
(3) after volume EP (end of program) is unloaded in the delay, volume program is unloaded in execution.
2. the control method according to claim 1 for preventing the flat volume of special strip, which is characterized in that the preset material
Code is the material code of high-carbon steel, dual phase steel and magnetic pole steel.
3. the control method according to claim 2 for preventing the flat volume of special strip, which is characterized in that the preset material
Code is one of 9SiCr, Q345B, T800NH and 50Cr34 or a variety of.
4. the control method according to claim 1 for preventing the flat volume of special strip, which is characterized in that volume journey is unloaded in the delay
The length for unloading volume delay of sequence is directly proportional to target temperature is batched.
5. the control method according to claim 4 for preventing the flat volume of special strip, which is characterized in that described to batch target temperature
Degree is described to unload volume delay >=150s at 700 DEG C or more；It is described batch target temperature be 650-700 DEG C when, it is described unload volume delay
For >=120s；It is described batch target temperature be 600-650 DEG C when, it is described to unload volume delay >=90s.
6. the control method according to claim 1 for preventing the flat volume of special strip, which is characterized in that in the step (3),
Judge that the delay unloads whether volume program terminates by the countdown display window batched on key frame HMI.
7. a kind of control system for preventing the flat volume of special strip characterized by comprising
(1) volume program starting module is unloaded；
(2) first judgment module, for the material code of coil of strip to be unloaded to be compared with preset material code, if it is described to
The material code for unloading coil of strip is equal to the preset material code, then executes delay and unload volume program；Otherwise, it executes and unloads volume program；
(3) second judgment modules, for judging that the delay unloads whether volume program terminates；
(4) volume program execution module is unloaded, after volume EP (end of program) is unloaded in the delay, volume program is unloaded in execution.
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| CN201811465102.5A CN109500096B (en) | 2018-12-03 | 2018-12-03 | Control method and control system for preventing special steel from being rolled into flat coil |
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| CN201811465102.5A CN109500096B (en) | 2018-12-03 | 2018-12-03 | Control method and control system for preventing special steel from being rolled into flat coil |
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| CN109500096B CN109500096B (en) | 2020-11-03 |
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Cited By (2)
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|---|---|---|---|---|
| CN111330979A (en) * | 2020-02-28 | 2020-06-26 | 鞍钢股份有限公司 | Hot rolled steel coil flat winding processing system and method |
| CN111940543A (en) * | 2019-05-14 | 2020-11-17 | 宝山钢铁股份有限公司 | Method for preventing flat coil in hot rolling coiling process |
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