CN110303041A - A kind of heating device and its processing method for wire rod serialization Rolling Production - Google Patents
A kind of heating device and its processing method for wire rod serialization Rolling Production Download PDFInfo
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- CN110303041A CN110303041A CN201910604529.7A CN201910604529A CN110303041A CN 110303041 A CN110303041 A CN 110303041A CN 201910604529 A CN201910604529 A CN 201910604529A CN 110303041 A CN110303041 A CN 110303041A
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- induction coil
- temperature
- region
- wire rod
- infrared imager
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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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- 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
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/42—Cooling of coils
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
Abstract
The present invention provides a kind of heating device for wire rod serialization Rolling Production, it includes frame body and two symmetrically arranged heating units in frame body, intermediate place of two heating units is heated workpiece, the structure of two heating units is completely the same, frame body includes support base, each heating unit includes camera support, thermal infrared imager, support plate, pressure controller, nozzle, support shaft and induction coil, thermal infrared imager is connected with computer, induction coil is able to rotate with support base by means of shaft insulation and is connect, the lower end of shaft insulation is fixedly connected with external power supply.The present invention replaces air core coil by solid coil, greatly reduces the design and manufacturing cost of induction coil；And the present invention uses the closed-loop control based on machine vision, realizes the cooling procedure to induction coil.
Description
Technical field
The invention belongs to wire rod serializations to roll field, be related to a kind of heating device for wire rod serialization Rolling Production
And its cooling means.
Background technique
With the development of rolling technique, wire rod rolling at present generallys use hot continuous rolling technology, to guarantee end product quality,
Steel billet start rolling temperature will be controlled at 950 DEG C~980 DEG C, and heating equipment is in the bad border continuous production operation of high temperature to its cooling system
Propose high requirement.Actual use shows that the problem of failure of induction heating equipment 90% is by cooling water is caused.Scale
Electric conductivity with water is the main reason for causing cooling water problems.The metal ions such as calcium can be precipitated in heated body surface in water
Fouling, prevent the heat generated on electrical component causes electrical component overtemperature to damage from being efficiently transferred in cooling water；
The high conductivity of cooling water leads to serious electrolysis and corrosion, causes dirt in pipe to assemble, so that the flow of water is reduced, influences cold
But, electrical component overheat is eventually led to burn out and stop production.In addition, induction heating system is to cooling water temperature, pressure in cooling circuit
Power etc. has very high requirement.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of heating device for wire rod serialization Rolling Production and its cooling side
Method.The present invention, which mainly utilizes, air-cooled utilizes infrared heat using the closed-loop control based on machine vision instead of traditional water-cooling method
As instrument is acquired coil temperature, coil is cooled down by adjusting induction coil revolving speed and nozzle angle in real time.In addition,
Coil uses solid construction, avoids cooling water channel from designing, enormously simplifies the design processing cost of coil.
Technical scheme is as follows:
The present invention provides a kind of heating device for wire rod serialization Rolling Production comprising frame body and in institute
Two symmetrically arranged heating units in frame body are stated, intermediate place of described two heating units is heated workpiece, and two
The structure of heating unit is completely the same, and the frame body includes support base,
Each heating unit includes camera support, thermal infrared imager, support plate, pressure controller, nozzle, support shaft
And induction coil,
Induction coil is able to rotate with the support base by means of shaft insulation and is connect, and the lower end of the shaft insulation is fixedly connected
There is external power supply；
The support plate includes identical first support plate of structure and the second support plate, first support plate and second
Fagging is fixedly connected with the side wall of the support base, and first support plate is at a distance from the upper surface of induction coil and institute
State being equidistant for the lower surface of the second support plate and induction coil, first support plate and the second support plate and induction coil
The edge of adjacent side is set as arc-shaped side, and multiple grooves are uniformly provided on the arc-shaped side, can turn in each groove
Dynamic is equipped with a support shaft, and the nozzle is arranged in the support shaft,
The thermal infrared imager is mounted in support base by means of the camera support, using preceding by means of adjusting camera
Backing positions and thermal infrared imager shooting angle, so that induction coil be made to be in coverage.
Preferably, the induction coil uses solid tray type structure, and it is recessed that the circumferential direction of the induction coil offers semi arch
Slot.
Preferably, the induction coil is equipped with positive terminal and negative terminals, and the positive terminal and cathode connect
Line end is fixedly connected with the shaft insulation.
Preferably, each nozzle is connected with a servo motor and a pressure controller, the servo motor and institute
Pressure controller is stated to be fixed on the surface of the support plate.
Preferably, the angle of the arc-shaped edges of first support plate and the second support plate is 90 degree.
Preferably, 8 grooves are uniformly provided on the arc-shaped side.
Preferably, the thermal infrared imager communication connection has computer.
Preferably, the present invention also provides a kind of methods processed using described device to wire rod comprising following steps:
S1, the thermal infrared imager, servo motor, pressure controller and induction coil and external power supply are connected, institute
It states pressure controller to be connected with outside air compressor spool, drives induction coil to turn with angular velocity omega by external power supply
It is dynamic, meanwhile, thermal infrared imager obtains image information with the thermal-induced imagery of the frequency collection induction coil set；
S2, the thermal infrared imager carry out first time thermometric to induction coil, and thermal infrared imager believes acquired image
Breath is transmitted to computer, and computer formulates the temperature threshold T of induction coil according to actual condition, by the air-cooled region root of induction coil
It is divided into a-quadrant and B area according to temperature T thermoisopleth, wherein a-quadrant is the region that temperature is higher than threshold temperature, it is cooled down,
B area is that temperature is lower than threshold temperature region, does not need to cool down, and computer control changes the angle of each nozzle to a-quadrant
It carries out air-cooled；
S3, the thermal infrared imager carry out second of thermometric to induction coil, extract induction coil thermometric regional temperature simultaneously
Compared with threshold temperature, induction coil thermometric region includes the region C and the region D, if the region C and the region D of induction coil
Temperature is below threshold temperature, then proves under the induction coil revolving speed and sample frequency, cooling system can guarantee to incude
The cooling of coil needs to carry out coil revolving speed and sample frequency if the region C and/or D regional temperature are higher than threshold temperature
Feedback regulation is so that cooling system can guarantee the cooling of induction coil；
S4, after processing is completed, work piece leaves machining area, and cooling system works on to the air-cooled region of induction coil
Threshold temperature is entirely located in the temperature in induction coil thermometric region hereinafter, closing cooling system, completes whole process.
Preferably, in step S3, when induction coil radius is less than 500mm, using concentric circles segmental arc at radius 1/2 as boundary,
It is the region C close to the center point region, is the region D close to induction coil border region, when induction coil radius is greater than or equal to
It is the region C close to the center point region, close to induction coil border region using concentric circles segmental arc at radius 2/3 as boundary when 500mm
For the region D,
If C regional temperature is higher than temperature threshold, D regional temperature is lower than temperature threshold, then improves the sampling of thermal infrared imager
Frequency；If C regional temperature is lower than threshold temperature, D regional temperature is higher than temperature threshold, then the revolving speed of induction coil is reduced, if the area C
Domain temperature and D regional temperature are above temperature threshold, then improve the sample frequency of thermal infrared imager first to make C regional temperature first
It reduces, further decreases the revolving speed of induction coil later to reduce D regional temperature.
Preferably, in step S2, the nozzle angle adjustment direction is in induction coil rotation direction preferentially from coil
Heart position is adjusted to marginal position, and cut-out governing frequency is consistent with sample frequency when thermal infrared imager first time thermometric, when mentioning
When the sample frequency of high IR thermal imaging system, cut-out governing frequency improves simultaneously.
The invention has the following advantages over the prior art:
The present invention replaces traditional water cooling by air-cooled, can be avoided influence of the cooling water to induction coil, improves the line of induction
It encloses the service life, and the more energy efficient environmental protection of entire cooling system.
The present invention replaces air core coil by solid coil, greatly reduces the design and manufacturing cost of coil；And this
Invention uses the closed-loop control based on machine vision, realizes the cooling procedure to coil.
Detailed description of the invention
Fig. 1 is apparatus of the present invention general structure schematic diagram；
Fig. 2 is apparatus of the present invention flow process chart；
Fig. 3 is apparatus of the present invention coil subregion schematic diagram；
Fig. 4 is apparatus of the present invention cooling system partial structural diagram；
Fig. 5 is apparatus of the present invention loop construction schematic diagram；And
Fig. 6 is apparatus of the present invention work piece and coil relative position schematic diagram.
Part appended drawing reference is as follows in figure:
1- camera support, 2- thermal infrared imager, 3- servo motor, 4- nozzle, 41- nozzle interface, 5- support shaft, 6- induction
Coil, 61- shaft insulation, 62- shaft coupling, 63- terminals, 7- work piece, 8- support plate, the first support plate of 81-, 82- second
Support plate, 9- pressure controller, the outlet of 91- pressure controller, 10- support base.
Specific embodiment
Below with reference to the attached drawing exemplary embodiment that the present invention will be described in detail, feature and aspect.It is identical attached in attached drawing
Icon note indicates element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings, unless special
It does not point out, it is not necessary to attached drawing drawn to scale.
The present invention provides a kind of heating device for wire rod serialization Rolling Production, as shown in Figures 1 to 6 comprising
Intermediate place of frame body and two symmetrically arranged heating units in frame body, two heating units is heated work
The structure of part 7, two heating units is completely the same, and frame body includes support base 10, and the bottom of support base 10 is provided with
Supporting leg 100.
Each heating unit includes camera support 1, thermal infrared imager 2, support plate 8, pressure controller 9, servo electricity
Machine 3, nozzle 4, support shaft 5 and induction coil 6.Nozzle 4 is provided with nozzle interface 41, and pressure controller 9 is provided with pressure control
Device outlet 91 processed.
Induction coil 6 is able to rotate with support base 10 by means of shaft insulation 61 and is connect, and the lower end of shaft insulation 61 is fixedly connected
There is external power supply.Shaft insulation 61 is fixed in support base 10 by means of support frame, between shaft insulation 61 and support frame by
It is connected in shaft coupling 62.
Support plate 8 includes identical first support plate 81 of structure and the second support plate 82, the first support plate 81 and second
Fagging 82 is fixedly connected with the side wall of support base, and the first support plate 81 is at a distance from the upper surface of induction coil 6 and second
Support plate 82 is equidistant with the lower surface of induction coil 6, the first support plate 81 and the second support plate 82 and 6 phase of induction coil
The edge of adjacent side is set as arc-shaped side, multiple grooves is uniformly provided on arc-shaped side, the peace being able to rotate in each groove
Equipped with a support shaft 5, nozzle 4 is fixedly connected on 5 top of support shaft.
Thermal infrared imager 2 is mounted in support base 10 by means of camera support 1, using preceding by means of adjusting camera support
The shooting angle of position and thermal infrared imager 2, so that induction coil 6 be made to be in coverage.
Preferably, induction coil 6 uses solid tray type structure, and the circumferential direction of induction coil 6 offers semicircle arc fluting.
Preferably, induction coil 6 is set there are two terminals 63, and two terminals 63 are respectively that positive terminal and cathode connect
Line end, positive terminal and negative terminals are fixedly connected with shaft insulation 61, and the setting of shaft insulation 61 is used for fixed inductor 6
And realize power input.
Preferably, each nozzle 4 is connected with a servo motor 3 and a pressure controller 9, servo motor 3 and pressure
Force controller 9 is fixed on the surface of support plate 8.
The present invention also provides a kind of methods processed using device to wire rod comprising following steps:
S1, thermal infrared imager, servo motor, pressure controller and induction coil and external power supply are connected, pressure control
Device processed is connected with outside air compressor spool, is rotated by external power supply driving induction coil with angular velocity omega.
Processed wire rod is sent into the contoured fields that two induction coils are formed by external feeding mechanism.Due to kelvin effect
And the effect of approach effect, electric current can be close to the location of workpiece, and completes the heating process to workpiece.Meanwhile thermal infrared imager
With the thermal-induced imagery of certain frequency f acquisition coil, due to the secondary acquisition thermometric process comprising image, therefore actual acquisition is frequently
Rate is f/2.
S2, then, image information is transmitted to computer by thermal infrared imager 2, formulates coil temperature threshold according to actual condition
The air-cooled region of coil is divided into a-quadrant and B area according to temperature T thermoisopleth by value T, and wherein a-quadrant is that temperature is higher than threshold temperature
Region is cooled down, and B area is that temperature is lower than threshold temperature region, does not need to cool down.
S3, the angle of each nozzle of system comprehensive matching are air-cooled to a-quadrant progress.Thermal infrared imager carries out coil secondary
Thermal-induced imagery acquisition, extracts induction coil thermometric regional temperature and compared with threshold temperature, induction coil thermometric region includes C
Region and the region D prove if the region C of induction coil and D regional temperature are below threshold temperature in the induction coil revolving speed
And under sample frequency, cooling system can guarantee the cooling of induction coil, if the region C and/or D regional temperature are higher than threshold value temperature
Degree then needs to carry out feedback regulation so that cooling system can guarantee the cold of induction coil to coil revolving speed and sample frequency
But；When its feedback regulation principle is that coil is cooling, in its rotation direction, nozzle angle is preferentially from hub of a spool position to side
Edge position is adjusted, and cut-out governing frequency is identical as thermal infrared imager actual samples frequency, i.e. the every sampling of thermal infrared imager is primary
(not including secondary thermometric process), nozzle angle adjusts primary.
In practical application, when induction coil radius is less than 500mm, using concentric circles segmental arc at radius 1/2 as boundary, close to circle
Region is the region C at the heart, is the region D close to induction coil border region, when induction coil radius is greater than or equal to 500mm,
It is the region C close to the center point region using concentric circles segmental arc at radius 2/3 as boundary, is the region D close to induction coil border region,
If C regional temperature is higher than temperature threshold, D regional temperature is lower than temperature threshold, then improves the sample frequency of thermal infrared imager；If C
Regional temperature be lower than threshold temperature, D regional temperature be higher than temperature threshold, then reduce the revolving speed of induction coil, if C regional temperature and
D regional temperature is above temperature threshold, then first improve thermal infrared imager sample frequency with make first C regional temperature reduction, it
Further decrease the revolving speed of induction coil afterwards to reduce D regional temperature.
If high-temperature region appears in the area C, illustrate that hub of a spool position is also uncolled or cooling is insufficient, such situation is preferentially recognized
It is too low to determine thermal infrared imager sample frequency, nozzle has little time to adjust, so that the area C high-temperature area has turned through cooling zone, needs to improve
Sample frequency.According to actual condition, thermal infrared imager highest frequency is set as 360 times/min, arrives this upper limit when frequency is adjusted, then
It is excessively high to regard as coil revolving speed, coil revolving speed need to be reduced.Conversely, hub of a spool part can be complete if high-temperature region appears in the area D
It is complete cooling, it is preferential to assert that coil revolving speed is excessively high, cause coil edge cooling insufficient, coil revolving speed need to be reduced.Further to refer to
Out, it in order to avoid coil local location is in condition of high temperature overlong time, should be mentioned as far as possible under the premise of meeting coil cooling
High coil revolving speed, so be preferentially considered to be led by thermal infrared imager frequency acquisition is too low when C regional temperature is higher than threshold temperature
It causes, rather than coil revolving speed is excessively high.
Since constant temperature generates in process, therefore the above process is needed to recycle and be carried out, after processing is completed, work piece
Machining area is left, coil is continued cool to and is entirely located in threshold temperature hereinafter, closing cooling system, is completed entire processed
Journey.
Specific embodiment
Infrared video camera 2 is adjusted to suitable position shown in Fig. 1, and is in coil in coverage.By infrared thermal imagery
Instrument, servo motor, pressure controller and induction coil and external power supply are connected, pressure controller and outside air compressor line
Pipe is connected, and drives induction coil to rotate with angular velocity omega=1rad/min by external power supply.Set thermal infrared imager sampling
Frequency is 120 times/min, and due to comprising secondary acquisition thermometric process, therefore coil actual samples frequency is 60 times/min, then coil
Upper each position air-cooled area shown in Fig. 3 can be 15 times/rad by sample frequency, and cut-out governing frequency is 60 times/min.
Workpiece is passed through induction heating region, coil and work piece relative position are as shown in Figure 6.Obtain the infrared heat of coil
Air-cooled region is divided into a-quadrant and B shown in Fig. 3 according to established temperature threshold value by image, T=60 DEG C of set temperature threshold value, computer
Region, wherein wherein a-quadrant is that temperature is higher than 60 DEG C of regions, is cooled down, and B area is that temperature is lower than 60 DEG C of regions, no
It needs to cool down.
Shown in Fig. 4, nozzle caliber d=10mm used, controlling each nozzle air flow velocity v range according to wind pressure is 10-
15m/s, then each nozzle air quantity V per second is (0.78-1.18) × 10-3m3, coil cooled region is within a sampling period, temperature
50-90 DEG C of degree decline.The angle of each nozzle of system comprehensive matching adjusts servo motor 5, carries out to a-quadrant air-cooled.Then,
Thermal infrared imager carries out secondary thermal-induced imagery acquisition to coil, extract C, D regional temperature shown in Fig. 3 and with threshold temperature ratio
Compared with if the region C and D regional temperature are lower than 60 DEG C, under the coil revolving speed and sample frequency, cooling system can guarantee line
The cooling of circle.If there is the temperature in a region to be higher than 60 DEG C in the region C and D regional temperature, if further judgement C regional temperature
Whether 60 DEG C are higher than, if the region C is higher than 60 DEG C, hub of a spool position is not up to cooling to be required, and system improves thermal infrared imager
Sample frequency is to 144 times/min, and it is 72 times/min that nozzle angle, which adjusts frequency, at this time, if the region D reduces induction higher than 60 DEG C
Coil revolving speed 10%.If the temperature in the region C and the region D is above 60 DEG C, the revolving speed of induction coil is reduced first to make the area C first
Domain temperature reduces, and further decreases turning to reduce D regional temperature for induction coil later.In the present embodiment, during coil is processed
For maximum temperature between 100-150 DEG C, each position can stop 15s in cooling zone, therefore the cooling to coil may be implemented.
After processing is completed, workpiece exits heating zone, and cooling system works on, until coil bulk temperature is entirely located in temperature
Threshold value completes whole process hereinafter, closing cooling system.
Finally, it should be noted that above-described embodiments are merely to illustrate the technical scheme, rather than to it
Limitation；Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or to part of or all technical features into
Row equivalent replacement；And these modifications or substitutions, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (10)
1. a kind of heating device for wire rod serialization Rolling Production, it is characterised in that: it includes frame body and in institute
Two symmetrically arranged heating units in frame body are stated, intermediate place of described two heating units is heated workpiece, and two
The structure of heating unit is completely the same, and the frame body includes support base,
Each heating unit include camera support, thermal infrared imager, support plate, pressure controller, nozzle, support shaft and
Induction coil,
Induction coil is able to rotate with the support base by means of shaft insulation and is connect, and the lower end of the shaft insulation is fixedly connected with outer
Portion's power source；
The support plate includes identical first support plate of structure and the second support plate, first support plate and the second support plate
It is fixedly connected with the side wall of the support base, first support plate is at a distance from the upper surface of induction coil and described
The lower surface of two support plates and induction coil is equidistant, and first support plate and the second support plate are adjacent with induction coil
The edge of side be set as arc-shaped side, multiple grooves are uniformly provided on the arc-shaped side, are able to rotate in each groove
One support shaft is installed, the nozzle is arranged in the support shaft,
The thermal infrared imager is mounted in support base by means of the camera support, using preceding by means of adjusting camera support
Position and thermal infrared imager shooting angle, so that induction coil be made to be in coverage.
2. the heating device according to claim 1 for wire rod serialization Rolling Production, it is characterised in that: the induction
Coil uses solid tray type structure, and the circumferential direction of the induction coil offers semicircle arc fluting.
3. the heating device according to claim 2 for wire rod serialization Rolling Production, it is characterised in that: the induction
Coil is equipped with positive terminal and negative terminals, and the positive terminal and negative terminals are fixedly connected with the insulation
Axis.
4. the heating device according to claim 1 for wire rod serialization Rolling Production, it is characterised in that: each spray
Mouth is connected with a servo motor and a pressure controller, and the servo motor and the pressure controller are fixed on the branch
On the surface of fagging.
5. the heating device according to claim 1 for wire rod serialization Rolling Production, it is characterised in that: described first
The angle of the arc-shaped edges of support plate and the second support plate is 90 degree.
6. the heating device according to claim 4 for wire rod serialization Rolling Production, it is characterised in that: the arc
8 grooves are uniformly provided on side.
7. the heating device according to claim 4 for wire rod serialization Rolling Production, it is characterised in that: described infrared
Thermal imaging system communication connection has computer.
What 8. a kind of heating device according to claim 1 for wire rod serialization Rolling Production processed wire rod
Method, it is characterised in that: itself the following steps are included:
S1, the thermal infrared imager, servo motor, pressure controller and induction coil and external power supply are connected, the pressure
Force controller is connected with outside air compressor spool, is rotated by external power supply driving induction coil with angular velocity omega, together
When, thermal infrared imager obtains image information with the thermal-induced imagery of the frequency collection induction coil set；
S2, the thermal infrared imager carry out first time thermometric to induction coil, and thermal infrared imager passes acquired image information
It is delivered to computer, computer formulates the temperature threshold T of induction coil according to actual condition, by the air-cooled region of induction coil according to temperature
Degree T thermoisopleth is divided into a-quadrant and B area, and wherein a-quadrant is the region that temperature is higher than threshold temperature, is cooled down, the area B
Domain is that temperature is lower than threshold temperature region, does not need to cool down, and the angle that computer control changes each nozzle carries out a-quadrant
It is air-cooled；
S3, the thermal infrared imager carry out second of thermometric to induction coil, extract induction coil thermometric regional temperature and and threshold
Value temperature compares, and induction coil thermometric region includes the region C and the region D, if the region C of induction coil and D regional temperature
It is below threshold temperature, then is proved under the induction coil revolving speed and sample frequency, cooling system can guarantee induction coil
Cooling need to adjust coil revolving speed and/or sample frequency if the region C and/or D regional temperature are higher than threshold temperature
Section is so that cooling system can guarantee the cooling of induction coil；
S4, after processing is completed, work piece leaves machining area, and cooling system works on to the air-cooled region of induction coil and sense
It answers the temperature in coil thermometric region to be entirely located in threshold temperature hereinafter, closing cooling system, completes whole process.
9. the side that the heating device according to claim 8 for wire rod serialization Rolling Production processes wire rod
Method, it is characterised in that: in step S3, when induction coil radius is less than 500mm, using concentric circles segmental arc at radius 1/2 as boundary, lean on
Nearly the center point region is the region C, is the region D close to induction coil border region, when induction coil radius is greater than or equal to 500mm
When, it is the region C close to the center point region using concentric circles segmental arc at radius 2/3 as boundary, is the area D close to induction coil border region
Domain；
If C regional temperature is higher than temperature threshold, D regional temperature is lower than temperature threshold, then improves the sample frequency of thermal infrared imager；
If C regional temperature is lower than threshold temperature, D regional temperature is higher than temperature threshold, then the revolving speed of induction coil is reduced, if the region C temperature
Degree and D regional temperature are above temperature threshold, then improve the sample frequency of thermal infrared imager first first drop C regional temperature
It is low, further decrease the revolving speed of induction coil later to reduce D regional temperature.
10. the side that the heating device according to claim 9 for wire rod serialization Rolling Production processes wire rod
Method, it is characterised in that: in step S2, the nozzle angle adjustment direction is in induction coil rotation direction preferentially from hub of a spool
Position is adjusted to marginal position, and cut-out governing frequency is consistent with sample frequency when thermal infrared imager first time thermometric, works as raising
When the sample frequency of thermal infrared imager, cut-out governing frequency improves simultaneously.
Priority Applications (1)
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|---|---|---|---|
| CN201910604529.7A CN110303041B (en) | 2019-07-05 | 2019-07-05 | Heating device for continuous rolling production of wire rods and processing method thereof |
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|---|---|---|---|
| CN201910604529.7A CN110303041B (en) | 2019-07-05 | 2019-07-05 | Heating device for continuous rolling production of wire rods and processing method thereof |
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| CN110303041B CN110303041B (en) | 2020-04-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186383A (en) * | 2021-04-13 | 2021-07-30 | 燕山大学 | Heating device for drill steel and heating method thereof |
| CN113319130A (en) * | 2021-06-29 | 2021-08-31 | 燕山大学 | Continuous rolling plate temperature control method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113186383A (en) * | 2021-04-13 | 2021-07-30 | 燕山大学 | Heating device for drill steel and heating method thereof |
| CN113319130A (en) * | 2021-06-29 | 2021-08-31 | 燕山大学 | Continuous rolling plate temperature control method and device |
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Application publication date: 20191008 Assignee: Jiangsu Yixin Energy Saving Technology Co.,Ltd. Assignor: Xuzhou Jingxin New Material Co., Ltd Contract record no.: X2021980016200 Denomination of invention: The invention relates to a heating device for continuous rolling production of wire rod and a processing method thereof Granted publication date: 20200421 License type: Common License Record date: 20220105 |
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