CN114535299A - Posture-variable roller heating system for rolling of difficult-to-deform alloy - Google Patents
Posture-variable roller heating system for rolling of difficult-to-deform alloy Download PDFInfo
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- CN114535299A CN114535299A CN202210112281.4A CN202210112281A CN114535299A CN 114535299 A CN114535299 A CN 114535299A CN 202210112281 A CN202210112281 A CN 202210112281A CN 114535299 A CN114535299 A CN 114535299A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/08—Lubricating, cooling or heating rolls internally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B27/106—Heating the rolls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/08—Lubricating, cooling or heating rolls internally
- B21B2027/083—Lubricating, cooling or heating rolls internally cooling internally
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention belongs to the technical field of warm rolling of plates, and particularly relates to a variable-posture roller heating system for rolling of a difficult-to-deform alloy, which comprises two sets of heating modules, wherein the two sets of heating modules are respectively used for heating roller surfaces on the feeding port sides of two rollers, and each heating module comprises an electromagnetic induction heating coil, a lifting fixing device and a moving positioning device; the electromagnetic induction heating coil is arranged on the lifting fixing device and used for heating the roller surface; the lifting fixing device is movably arranged on the movable positioning device and is used for adjusting the distance from the electromagnetic induction heating coil to the roll center of the roll; the movable positioning device is arranged on the side of the feeding port of the roller and used for adjusting the angle of the lifting fixing device, so that the inclination angle of the electromagnetic induction heating coil is adjusted. The heating mode of the invention adopts electromagnetic induction heating, when the frequency is increased, the penetration depth of current is reduced, the current can be concentrated on the surface of the roller for heating, the energy utilization rate is high, the heating efficiency is high, and the roller surface can reach 750 ℃.
Description
Technical Field
The invention belongs to the technical field of warm rolling of plates, and particularly relates to a variable-posture roller heating system for rolling of a difficult-to-deform alloy.
Background
When some metal or alloy plates are rolled, the plastic deformation is poor at normal temperature due to the limitation of the grain structure, and cracks and edges are easy to generate on the surface. The adoption of warm rolling can enhance the plastic deformation capacity of the sheet material during rolling, and the hardening degree of the sheet material is reduced because the crystal grains are restored to a certain extent, so that the sheet material can be effectively prevented from surface cracks and edges, the rolling performance and the yield of the sheet material are improved, and the sheet material can be conveniently rolled for multiple times under the condition that the sheet material needs to be rolled for multiple times.
When warm rolling, the surface of the roller needs to be preheated. The prior common heating modes of the roller surface of the roller generally comprise two types, one is heating the inside of the roller and heating the surface by heat conduction. For example, water, oil or other heat-conducting liquid is introduced into the interior of the roll to heat the interior of the roll, and a liquid circulation system is formed in the core of the roll, so that heat is gradually conducted from the core to the surface of the roll through heat conduction. Although the heating mode realizes the on-line heating of the roller, the technical problems are also existed, such as: the boiling point of the heat-conducting liquid is low, and the roll surface is difficult to reach high temperature. The higher temperature of the liquid, the higher requirements for the sealing of the liquid and the material of the inlet and outlet pipes, also result in higher cost. Because heat conduction is carried out from the center to the roll surface, the heating time is longer, the energy consumption is extremely high, and the precision of roll surface temperature control is lower.
Another type is direct heating of the roll surface. Such as by lance heating of the roll surface, i.e. by direct heating of the roll surface by combustion of gaseous fuel. Although the heating method is simple, the method has the following disadvantages: the roll surface temperature distribution is uneven, the temperature control is difficult, and the online heating can not be realized. The roll is loaded into a roll heating furnace before rolling, heated to a predetermined time or temperature, and then taken out of the furnace and put into use. However, the method has the obvious defects that when the surface temperature of the roller is reduced to be lower than the working temperature, the roller needs to be stopped and reheated, and the working efficiency is low. Because the roll surface continuously radiates heat, the control precision of the roll surface temperature is not high, and the rolling effect is different at different moments. Before rolling, other high-temperature metals, such as steel materials with higher temperature, are rolled by using a roller, so that the temperature of the roller surface of the roller is increased. However, the heating method has the defects of uneven heating temperature distribution of the roller surface, low heating temperature, metal resource waste, low working efficiency and the like, and is not suitable for large-scale rolling production.
However, in recent years, more people use electromagnetic induction heating, and the method has the advantages of high heating efficiency, uniform heating temperature distribution, low energy consumption and the like. However, there are some technical problems such as the arrangement of the heating coil, the arrangement of the electromagnetic induction heating coil at 180 °, and the installation and the removal are not easy to handle. Because the heating device is positioned on the surface of the working roll, when a rolled piece is stuck to the roll during rolling, the rolled piece is warped upwards or downwards and easily rushes to the heating device, so that the heating device is damaged. In addition, the coil is arranged at the front end of the roller in a rectangular frame mode, the effective acting area of the coil is small, and the effect of quickly and uniformly heating the roller is difficult to achieve. Meanwhile, the arrangement of the induction heater is mainly fixed installation, the position of the coil relative to the axle center of the roller cannot be adjusted, the concentricity of the coil and the roller surface of the roller is difficult to maintain when the roller gap needs to be adjusted when the thicknesses of supplied materials are different, and the heating effect is difficult to ensure.
For another example, heat is gradually conducted from the surface to the heart due to heat conduction. If the working time of the roller is too long, the core part is in a high-temperature state, the service life of bearing parts is reduced rapidly, and the requirements on the material and the processing and manufacturing of the bearing parts are high. The heating coil may also be damaged by heat conduction due to an excessively high temperature of the heated workpiece.
Disclosure of Invention
The invention provides a variable-posture roller heating system for rolling a difficult-to-deform alloy.
In order to achieve the purpose, the invention adopts the following technical scheme:
a variable-posture roller heating system for rolling of an alloy difficult to deform comprises two sets of heating modules, wherein the two sets of heating modules are respectively used for heating the roller surfaces on the sides of two roller feeding openings, and each heating module comprises an electromagnetic induction heating coil, a lifting fixing device and a moving positioning device;
the electromagnetic induction heating coil is arranged on the lifting fixing device and used for heating the roll surface;
the lifting fixing device is movably arranged on the movable positioning device and is used for adjusting the distance from the electromagnetic induction heating coil to the roll center of the roll;
the movable positioning device is arranged on the side of the feeding port of the roller and used for adjusting the angle of the lifting fixing device, so that the inclination angle of the electromagnetic induction heating coil is adjusted.
The movable positioning device comprises two vertical guide rails which are oppositely arranged, a following movable sliding block and a maintaining horizontal sliding block are arranged in each vertical guide rail, the maintaining horizontal sliding block is located above the following movable sliding block, locking screws are arranged on the following movable sliding block and the maintaining horizontal sliding block and used for achieving relative fixing with the vertical guide rails, a rotating shaft is rotatably arranged between the two following movable sliding blocks which are oppositely arranged, a first connecting rod is fixedly arranged at the left part and the right part of the rotating shaft, a second connecting rod and a third connecting rod are connected onto the first connecting rod through rotating pairs, the other ends of the second connecting rod and the third connecting rod are respectively connected with two ends of a fourth connecting rod through rotating pairs, a parallelogram connecting rod structure is formed among the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod, and the lengths of the second connecting rod and the third connecting rod are the same as the horizontal distance from the axle center of the rotating shaft to the corresponding roll core The maintenance horizontal sliding block is provided with a horizontal sliding groove, the second connecting rod or the third connecting rod is arranged in the horizontal sliding groove in a sliding mode, an installation rod is fixedly connected between the two fourth connecting rods together, and the lifting fixing device is installed on the installation rod.
Still further, the lifting fixing device comprises a fixing plate, a connecting rod is fixedly arranged on the fixing plate, a through hole for penetrating the connecting rod is formed in the mounting rod, a supporting plate is connected to the other end of the connecting rod, two lifting screws are connected to the mounting rod in a threaded mode and are respectively located on two sides of the through hole, the lifting screws are used for supporting the supporting plate, a mounting groove for clamping the electromagnetic induction heating coil is formed in the fixing plate, clamping blocks are arranged at two ends of the electromagnetic induction heating coil and are used for being matched with the mounting groove to achieve clamping of the electromagnetic induction heating coil and the fixing plate, a clamping groove is formed in one side of the mounting groove and is used for clamping a fixing sliding plate, and the fixing sliding plate is connected with the fixing plate through bolts.
Furthermore, the heating module further comprises a roller core cooling device, the roller core cooling device comprises a rotary joint, the rotary joint is in threaded connection with a cooling channel in the middle of the end face of the roller, a water inlet pipe and a water outlet pipe are connected to the outer side end of the rotary joint, a built-in pipe is in threaded connection with the middle of the inner side end of the rotary joint, the built-in pipe is located in the cooling channel, cooling liquid enters the rotary joint from the water inlet pipe and enters the deepest part of the cooling channel through the built-in pipe, flows back to the rotary joint through the space between the inner wall of the cooling channel and the outer wall of the built-in pipe and flows out through the water outlet pipe connected with the rotary joint.
Furthermore, a blocking wall is arranged at the port of the cooling channel, a through hole for passing through the built-in pipe is formed in the middle of the blocking wall, and a plurality of water outlet holes are uniformly distributed around the through hole.
Furthermore, the water outlet hole is arc-shaped, diamond-shaped or circular.
Furthermore, the heating module further comprises a coil cooling device for cooling the electromagnetic induction heating coil.
Further, coil cooling device includes inlet tube and No. two wet return, electromagnetic induction heating coil is hollow structure, No. two inlet tubes and No. two wet return are connected with electromagnetic induction heating coil's both ends respectively and are put through to in order to let in the coolant liquid to electromagnetic induction heating coil inside.
Furthermore, the whole electromagnetic induction heating coil is arc-shaped, the central angle corresponding to the surface of the covered roller is 30-150 degrees, and the outer surface of the electromagnetic induction heating coil is covered with a high-temperature-resistant adhesive layer, so that the high temperature on the surface of the roller is prevented from being diffused to the electromagnetic induction heating coil, the temperature of the electromagnetic induction heating coil is prevented from being too high, and the service life of the electromagnetic induction heating coil is shortened.
Furthermore, the heating module also comprises a surface temperature detector which is used for detecting the temperature of the surface of the roller and forming a closed loop with the electromagnetic induction heating coil, so that the current of the electromagnetic induction heating coil can be controlled in real time conveniently, and the heating temperature can be controlled.
Compared with the prior art, the invention has the following advantages:
1. the energy utilization rate is high, the heating efficiency is controllable, the temperature of the roll surface is high and can reach 750 ℃, and the heating is rapid; the heating mode of the invention adopts electromagnetic induction heating, when the frequency is increased, the penetration depth of current is reduced, the heating can be concentrated on the surface of the roller, the energy utilization rate is high, the heating efficiency is high, the roller surface can reach 750 ℃, and the electromagnetic induction heating has the characteristic of quick heating;
2. the mobile positioning device has exquisite structure and high degree of freedom, and can realize multiple functions; the movable positioning device has the advantages that each part of the movable positioning device is simple in structure, other parts can be replaced as long as the functions of the movable positioning device can be realized, so that the device can be changed in various forms, the functions comprise that the electromagnetic induction heating coil and the roller are coaxial, the angle of the electromagnetic induction heating coil is adjusted along the circumferential direction, the height of the electromagnetic induction heating coil is adjusted along the radial direction, and the height of the electromagnetic induction heating coil is adjusted along the lifting of the roller, the functional requirements required by the electromagnetic induction heating coil are basically covered, and the electromagnetic induction heating coil can be coaxial with the roller, can be adjusted along the circumferential direction, the radial direction and the vertical direction, is high in degree of freedom, and is convenient for subsequent improvement to add other functions;
3. the roll core cooling device has the advantages that the temperature of the roll core is controllable, the bearing is well protected, long-time online heating and use can be realized, and the working efficiency is improved; when the roller surface is heated, the temperature of the roller core can be gradually increased due to the heat conduction effect, and if the temperature is not reduced, the service life of each part can be greatly reduced, and the effect is particularly obvious on a bearing; the roll core cooling device absorbs heat from the roll surface, so that all parts can be protected, long-time online heating use is realized, and the working efficiency is improved;
4. the central angle corresponding to the electromagnetic induction heating coil covering the surface of the roller is 30-150 degrees, the heat source is better in concentration during heating, the temperature distribution on the surface of the roller is more uniform, a proper angle can be selected according to actual needs, and meanwhile, the phenomenon that high-temperature oxide skin of a plate falls off and falls into the coil is avoided; in other related patents, a 180-degree coil is adopted, and high-temperature oxide skin of a plate is easy to fall off and fall into the coil, so that the service cycle of the heating device is short, the roller is inconvenient to work and install, and the cleaning is also inconvenient;
5. the movable positioning device is convenient to disassemble, and the interchangeability of the electromagnetic induction heating coil and the roller is strong; the electromagnetic induction heating coil is fixed on the outer side of the rolling mill, can be directly disassembled when the surface of the roller is not required to be heated, and can be used for other types of rolling.
Drawings
FIG. 1 is a state diagram of the present invention in use;
FIG. 2 is a schematic view of the structure of the cooling device without a roll core according to the present invention;
FIG. 3 is a schematic view of the cooling apparatus without a roller core according to the present invention;
FIG. 4 is a schematic view of the lifting fixture according to the present invention;
FIG. 5 is a schematic view of the connection between the electromagnetic induction heating coil, the lifting fixing device and the mobile positioning device according to the present invention;
FIG. 6 is a schematic view of the structure of the roll core cooling device of the present invention;
FIG. 7 is a side view of the roll of the present invention;
FIG. 8 is an internal layout of the electromagnetic induction heating coil of the present invention;
FIG. 9 is a simulation diagram of the heating effect of the roll surface of the roll with a central angle of 60 degrees corresponding to the electromagnetic induction heating coil covering the roll surface in the embodiment of the invention;
FIG. 10 is a comparison of the calculated and measured roll surface temperatures of the present invention.
Detailed Description
In order to further illustrate the technical solution of the present invention, the present invention is further illustrated by the following examples.
As shown in fig. 1 to 7, the posture-variable roller heating system for rolling the alloy difficult to deform comprises two sets of heating modules, wherein the two sets of heating modules are respectively used for heating the roller surfaces on the feeding port sides of two rollers, and each heating module comprises an electromagnetic induction heating coil 32, a lifting fixing device, a moving positioning device, a coil cooling device and a surface temperature detector;
the electromagnetic induction heating coil 32 is arranged on the lifting fixing device and used for heating the roll surface;
the lifting fixing device is movably arranged on the movable positioning device and is used for adjusting the distance from the electromagnetic induction heating coil 32 to the roll center of the roll;
the movable positioning device is arranged on the side of the feeding port of the roller and is used for adjusting the angle of the lifting fixing device so as to adjust the inclination angle of the electromagnetic induction heating coil 32;
the coil cooling device is used for cooling the electromagnetic induction heating coil 32;
the surface temperature detector is used for detecting the temperature of the surface of the roller and forms a closed loop with the electromagnetic induction heating coil 32, so that the current of the electromagnetic induction heating coil 32 can be controlled in real time conveniently, and the heating temperature can be controlled.
The mobile positioning device comprises two vertical guide rails 1 which are oppositely arranged, a following moving slide block 2 and a maintaining horizontal slide block 3 are arranged in each vertical guide rail 1, each maintaining horizontal slide block 3 is positioned above the following moving slide block 2, locking screws are respectively arranged on the following moving slide block 2 and the maintaining horizontal slide block 3 and are used for realizing the relative fixation with the vertical guide rail 1, a rotating shaft 4 is rotatably arranged between the two following moving slide blocks 2 which are oppositely arranged, a first connecting rod 5 is fixedly arranged at the left part and the right part of the rotating shaft 4, a second connecting rod 6 and a third connecting rod 7 are connected on the first connecting rod 5 through a rotating pair, the other ends of the second connecting rod 6 and the third connecting rod 7 are respectively connected with the two ends of a fourth connecting rod 8 through a rotating pair, and a parallelogram connecting rod structure is formed among the first connecting rod 5, the second connecting rod 6, the third connecting rod 7 and the fourth connecting rod 8, and the length of the second connecting rod 6 and the third connecting rod 7 is the same as the horizontal distance from the axle center of the rotating shaft 4 to the corresponding roller core, a horizontal sliding groove 9 is arranged on the maintaining horizontal sliding block 3, the second connecting rod 6 or the third connecting rod 7 is arranged in the horizontal sliding groove 9 in a sliding manner, an installation rod 10 is fixedly connected between the two fourth connecting rods 8, and the lifting fixing device is installed on the installation rod 10.
The lifting fixing device comprises a fixing plate 11, a connecting rod 26 is fixedly arranged on the fixing plate 11, a through hole 27 for passing through a connecting rod 26 is provided on the mounting rod 10, a support plate 28 is connected to the other end of the connecting rod 26, two lifting screws 12 are further connected to the mounting rod 10 in a threaded manner, the two lifting screws 12 are respectively located at two sides of the through hole 27, the lifting screws 12 are used for supporting a supporting plate 28, an installation groove 14 for clamping the electromagnetic induction heating coil 32 is arranged on the fixing plate 11, clamping blocks 29 are arranged at two ends of the electromagnetic induction heating coil 32, the clamping blocks 29 are used for being matched with the mounting grooves 14 to realize the clamping of the electromagnetic induction heating coil 32 and the fixing plate 11, a clamping groove 30 is arranged at one side of the mounting groove 14, the clamping groove 30 is used for clamping a fixed sliding plate 15, and the fixed sliding plate 15 is connected with the fixed plate 11 through a bolt 31.
The heating module further comprises a roller core cooling device, the roller core cooling device comprises a rotary joint 16, the rotary joint 16 is in threaded connection with a cooling channel 17 in the middle of the end face of the roller, a first water inlet pipe 18 and a first water outlet pipe 19 are connected to the outer side end of the rotary joint 16, an internal pipe 20 is in threaded connection with the middle of the inner side end of the rotary joint 16, the internal pipe 20 is located in the cooling channel 17, cooling liquid enters the rotary joint 16 from the first water inlet pipe 18, enters the deepest part of the cooling channel 17 through the internal pipe 20, flows back to the rotary joint 16 through a space between the inner wall of the cooling channel 17 and the outer wall of the internal pipe 20, and flows out through the first water outlet pipe 19 connected with the rotary joint 16; a blocking wall 21 is arranged at the port of the cooling channel 17, a through hole 22 for passing through the built-in pipe 20 is arranged in the middle of the blocking wall 21, a plurality of water outlet holes 23 are uniformly distributed around the through hole 22, and the water outlet holes 23 are arc-shaped, diamond-shaped or circular.
Coil cooling device includes inlet tube 24 and No. two wet return 25 No. two, electromagnetic induction heating coil 32 is hollow structure, No. two inlet tube 24 and No. two wet return 25 are connected with electromagnetic induction heating coil 32's both ends respectively and are put through to in order to let in the coolant liquid to electromagnetic induction heating coil 32 is inside.
The electromagnetic induction heating coil 32 is integrally arc-shaped, the central angle corresponding to the surface of the covered roll is 30-150 degrees, and the outer surface of the electromagnetic induction heating coil 32 is covered with a high-temperature-resistant adhesive layer, so that the high temperature on the surface of the roll is prevented from being diffused to the electromagnetic induction heating coil 32, the temperature of the electromagnetic induction heating coil 32 is too high, and the service life of the electromagnetic induction heating coil is shortened.
Variable attitude theory of operation: the axial line of the rotating shaft 4 and the axial line of the roller are in the same horizontal plane, the purpose of adjusting along with the lifting of the roller is realized, the distance from the axial line of the rotating shaft to the axial line of the roller is the same as the length of the second connecting rod 6 and the third connecting rod 7, then the following moving sliding block 2 is fixed through a locking screw, and the second connecting rod 6 and the third connecting rod 7 are always kept in a horizontal state because of maintaining the horizontal sliding block 3, so that the connecting lines between the two ends of the second connecting rod, the roller center and the axial center of the rotating shaft and the four points form a parallelogram, the distance from the electromagnetic induction heating coil 32 to the roller center is ensured to be constant, the arc shape of the position of the electromagnetic induction heating coil 32 can be finally determined, the purpose of adjusting the angle of the electromagnetic induction heating coil 32 along the circumferential direction of the roller can be realized by adjusting the inclination angle of the first connecting rod 5, and the purpose of the electromagnetic induction heating coil 32 and the roller being coaxial can be finally realized, the support plate 28 is driven to move by adjusting the screwing depth of the lifting screw 12, and finally the purpose of adjusting the height of the electromagnetic induction heating coil 32 along the radial direction is achieved.
Principle of roller core cooling device: the cooling liquid enters the inner pipe 20 through the first water inlet pipe 18 and the rotary joint 16 and is discharged from the tail end of the inner pipe 20, then flows to the barrier wall 21 through the space between the inner wall of the cooling channel 17 and the outer wall of the inner pipe 20 and flows out through the water outlet hole 23, then enters the rotary joint 16 and flows out from the first water outlet pipe 19, and cooling of the roller core of the roller is achieved.
The description of the special coil is that the corresponding central angle of the coil covering roller surface is 30-150 degrees: thirteen coils are designed to cover the coils which are evenly distributed with the central angles corresponding to the rolling surfaces of 30-150 degrees respectively. Introducing the model into Deform-3D finite element simulation software for simulation again, and taking 35e as the current density5A/m2The power frequency is 1kHz at the middle frequency band, and the rotating speed of the roller is 2 rad/s. According to the simulation results, the heating uniformity is gradually reduced from 30 degrees to 150 degrees, the heating heat source is gradually reduced from the whole to two sides, and the comprehensive simulation results show that the 60-degree coil is best in heat source concentration and relatively better in the uniformity of the temperature distribution on the surface of the roller when the 60-degree coil is heated, so that the central angle corresponding to the coil covering the roller surface is preferably 60 degrees.
The concrete case is as follows:
(1) roller static induction heating experiment: the devices are assembled according to the requirements and the states of the devices are adjusted according to the requirements. The surface temperature detector is a ZH-01 model infrared thermometer produced by Zhonghuan mechanical Limited company, and the temperature measuring range is as follows: 400-1200 ℃; basic error is 1%; resolution ratio: the response time was 50ms at 1 ℃ and the measurement distance was 0.2-1.5 m.
In the experimental process (0s, 45s, 60s and 75s), the temperature acquisition point of the infrared thermometer is the center of the induction heating surface of the roller.
The AC power supply has an adjustment frequency parameter of 1kHz and a current density of 10e5A/m2When the roller is heated in an induction mode for 60s, the temperature of a temperature measuring point reaches 585 ℃, red-hot spots appear on the roller surface near the induction coil, and the temperature rising speed is high; when the temperature is heated for 75s, the temperature of the temperature measuring point reaches 681 ℃, and then the temperature rising speed is gradually reduced.
Through a Deform-3D time history post-processing function, a simulation result of the change of the roll surface temperature along with time is extracted, meanwhile, the roll surface temperature in the static roll induction heating experiment process is collected through a high-precision infrared thermometer, and a curve of the change of the roll surface temperature along with time is drawn as shown in an attached drawing 10.
(2) Roller dynamic induction heating experiment: and a 120W adjustable speed motor is selected, the rotating speed range is 15r/min-30r/min, and the end part of a motor shaft is connected with a shaft at the end part of the roller through a coupler, so that the dynamic rotation of the roller is realized.
The surface temperature infrared detector is a ZH-01 model infrared thermometer produced by Zhonghuan machinery Limited company, and the temperature measuring range is as follows: 400-1200 ℃; basic error 1%; resolution ratio: the response time was 50ms at 1 ℃ and the measurement distance was 0.2-1.5 m. The temperature collecting point of the infrared thermometer is the center of the induction heating surface of the roller. The AC power supply has an adjustment frequency parameter of 1kHz and a current density of 10e5A/m2。
When the induction heating time is up to 70s under the condition of roller rotation, the uniform temperature of the roller surface reaches about 600 ℃, and the roller surface is in a red-red state when 100 s. At this time, the overall temperature of the roll surface increased to 700 ℃ and remained substantially the same as that obtained by the simulation calculation.
While there have been shown and described what are at present considered to be the essential features and advantages of the invention, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A posture-variable roller heating system for rolling of a difficult-to-deform alloy is characterized in that: the device comprises two sets of heating modules, wherein the two sets of heating modules are respectively used for heating the roll surfaces on the side of the feeding openings of the two rolls, and each heating module comprises an electromagnetic induction heating coil (32), a lifting fixing device and a moving positioning device;
the electromagnetic induction heating coil (32) is arranged on the lifting fixing device and used for heating the roll surface;
the lifting fixing device is movably arranged on the movable positioning device and is used for adjusting the distance from the electromagnetic induction heating coil (32) to the roll center of the roll;
the movable positioning device is arranged on the side of the feeding opening of the roller and used for adjusting the angle of the lifting fixing device, so that the inclination angle of the electromagnetic induction heating coil (32) is adjusted.
2. The attitude-variable roll heating system for rolling a hardly deformable alloy according to claim 1, characterized in that: the mobile positioning device comprises two vertical guide rails (1) which are oppositely arranged, a following moving sliding block (2) and a maintaining horizontal sliding block (3) are arranged in each vertical guide rail (1), the maintaining horizontal sliding block (3) is positioned above the following moving sliding block (2), locking screws are arranged on the following moving sliding block (2) and the maintaining horizontal sliding block (3) respectively and are used for realizing the relative fixation with the vertical guide rails (1), a rotating shaft (4) is rotatably arranged between the two following moving sliding blocks (2) which are oppositely arranged, a first connecting rod (5) is fixedly arranged at the left part and the right part of the rotating shaft (4), a second connecting rod (6) and a third connecting rod (7) are connected on the first connecting rod (5) through rotating pairs, the other ends of the second connecting rod (6) and the third connecting rod (7) are respectively connected with the two ends of a fourth connecting rod (8) through rotating pairs, no. one connecting rod (5), No. two connecting rods (6), No. three connecting rods (7) and No. four connecting rods (8) between constitute parallelogram link structure jointly, just the length of No. two connecting rods (6) and No. three connecting rods (7) all is the same with pivot (4) axle center to the horizontal distance of corresponding roll roller core maintain be provided with horizontal spout (9) on horizontal slider (3), No. two connecting rods (6) or No. three connecting rods (7) slide and set up in horizontal spout (9), common fixedly connected with installation pole (10) between two No. four connecting rods (8), lift fixing device installs on installation pole (10).
3. The attitude-variable roll heating system for rolling a hardly deformable alloy according to claim 2, characterized in that: the lifting fixing device comprises a fixing plate (11), a connecting rod (26) is fixedly arranged on the fixing plate (11), a through hole (27) for penetrating the connecting rod (26) is formed in the mounting rod (10), a supporting plate (28) is connected to the other end of the connecting rod (26), two lifting screws (12) are further in threaded connection with the mounting rod (10), the two lifting screws (12) are respectively located on two sides of the through hole (27), the lifting screws (12) are used for supporting the supporting plate (28), a mounting groove (14) for clamping an electromagnetic induction heating coil (32) is formed in the fixing plate (11), clamping blocks (29) are arranged at two ends of the electromagnetic induction heating coil (32), the clamping blocks (29) are used for being matched with the mounting groove (14) to clamp the electromagnetic induction heating coil (32) and the fixing plate (11), a clamping groove (30) is formed in one side of the mounting groove (14), the clamping groove (30) is used for clamping a fixed sliding plate (15), and the fixed sliding plate (15) is connected with the fixed plate (11) through a bolt (31).
4. The attitude-variable roll heating system for rolling a hardly deformable alloy according to claim 1, characterized in that: the heating module further comprises a roller core cooling device, the roller core cooling device comprises a rotary joint (16), the rotary joint (16) is in threaded connection with a cooling channel (17) in the middle of the end face of the roller, a water inlet pipe (18) and a water outlet pipe (19) are connected to the outer side end of the rotary joint (16), a built-in pipe (20) is in threaded connection with the middle of the inner side end of the rotary joint (16), the built-in pipe (20) is located in the cooling channel (17), cooling liquid enters the rotary joint (16) from the water inlet pipe (18) and enters the deepest part of the cooling channel (17) through the built-in pipe (20), flows back to the rotary joint (16) through a space between the inner wall of the cooling channel (17) and the outer wall of the built-in pipe (20), and flows out through the water outlet pipe (19) connected with the rotary joint (16).
5. The attitude-variable roll heating system for rolling a hardly deformable alloy according to claim 4, characterized in that: the port department of cooling channel (17) is provided with and blocks wall (21) the middle part of blocking wall (21) is provided with through-hole (22) that are used for through built-in pipe (20) the evenly distributed has a plurality of apopores (23) around through-hole (22).
6. The attitude-variable roll heating system for rolling a hardly deformable alloy according to claim 5, characterized in that: the water outlet hole (23) is arc-shaped, diamond-shaped or circular.
7. The attitude-variable roll heating system for rolling a hardly deformable alloy according to claim 1, characterized in that: the heating module further comprises a coil cooling device for cooling the electromagnetic induction heating coil (32).
8. The attitude-variable roll heating system for rolling a hardly deformable alloy according to claim 5, characterized in that: coil cooling device includes inlet tube (24) No. two and wet return (25) No. two, electromagnetic induction heating coil (32) are hollow structure, No. two inlet tube (24) and wet return (25) connect the switch-on with the both ends of electromagnetic induction heating coil (32) respectively to be convenient for let in the coolant liquid to electromagnetic induction heating coil (32) inside.
9. The attitude-variable roll heating system for rolling a hardly deformable alloy according to claim 1, characterized in that: the electromagnetic induction heating coil (32) is integrally arc-shaped, the central angle corresponding to the surface of the covered roller is 30-150 degrees, and a high-temperature-resistant adhesive layer covers the outer surface of the electromagnetic induction heating coil (32) to prevent high temperature on the surface of the roller from diffusing to the electromagnetic induction heating coil (32), so that the temperature of the electromagnetic induction heating coil (32) is too high, and the service life of the electromagnetic induction heating coil is shortened.
10. The attitude-variable roll heating system for rolling a hardly deformable alloy according to claim 1, characterized in that: the heating module also comprises a surface temperature detector which is used for detecting the temperature of the surface of the roller and forms a closed loop with the electromagnetic induction heating coil (32), thereby being convenient for controlling the current of the electromagnetic induction heating coil (32) in real time and achieving the effect of controlling the heating temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210112281.4A CN114535299A (en) | 2022-01-29 | 2022-01-29 | Posture-variable roller heating system for rolling of difficult-to-deform alloy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210112281.4A CN114535299A (en) | 2022-01-29 | 2022-01-29 | Posture-variable roller heating system for rolling of difficult-to-deform alloy |
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| CN114535299A true CN114535299A (en) | 2022-05-27 |
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| CN202210112281.4A Pending CN114535299A (en) | 2022-01-29 | 2022-01-29 | Posture-variable roller heating system for rolling of difficult-to-deform alloy |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05192703A (en) * | 1991-09-24 | 1993-08-03 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling mill |
| US20050205555A1 (en) * | 2004-03-17 | 2005-09-22 | Matsushita Electric Industrial Co., Ltd. | Heating apparatus fusing apparatus and image forming apparatus |
| KR20110000411A (en) * | 2009-06-26 | 2011-01-03 | 현대제철 주식회사 | Preheating apparatus for roll |
| CN202162211U (en) * | 2011-07-11 | 2012-03-14 | 邢台纳科诺尔极片轧制设备有限公司 | Electromagnetism heated battery pole piece rolling mill |
| CN103658189A (en) * | 2013-11-16 | 2014-03-26 | 中国重型机械研究院股份公司 | Device for on-line roller heating and temperature controlling for warm-rolling mill |
| CN203764863U (en) * | 2014-01-22 | 2014-08-13 | 浙江精龙刀剑有限公司 | Knife and sword initial blank hot roll-press forming machine |
| CN204272419U (en) * | 2014-12-19 | 2015-04-15 | 河南华中电子设备制造有限公司 | The water cooling plant of heater coil in a kind of electromagnetic induction heater |
| CN104858234A (en) * | 2014-02-25 | 2015-08-26 | 中信国安盟固利动力科技有限公司 | Method and system for induction heating of hot-rolling mill rollers for lithium battery pole pieces |
| CN106986480A (en) * | 2017-05-25 | 2017-07-28 | 江苏永益环保科技有限公司 | Cutting fluid waste water treatment system |
| CN109412515A (en) * | 2018-10-30 | 2019-03-01 | 阮镇荣 | A kind of solar panel adjusts fixed device and its adjusting method |
| CN210093994U (en) * | 2019-03-27 | 2020-02-21 | 景宁丽恒模具加工厂 | Automatic durian picking equipment |
| CN212857127U (en) * | 2020-07-14 | 2021-04-02 | 无锡莱德金属制品有限公司 | Thickness control mechanism for rolling plate shape |
| CN213579547U (en) * | 2020-12-10 | 2021-06-29 | 金卡智能集团股份有限公司 | Metering device and flow meter |
| CN113976630A (en) * | 2021-11-18 | 2022-01-28 | 燕山大学 | Device capable of preheating roller at constant temperature and operation method thereof |
-
2022
- 2022-01-29 CN CN202210112281.4A patent/CN114535299A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05192703A (en) * | 1991-09-24 | 1993-08-03 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling mill |
| US20050205555A1 (en) * | 2004-03-17 | 2005-09-22 | Matsushita Electric Industrial Co., Ltd. | Heating apparatus fusing apparatus and image forming apparatus |
| KR20110000411A (en) * | 2009-06-26 | 2011-01-03 | 현대제철 주식회사 | Preheating apparatus for roll |
| CN202162211U (en) * | 2011-07-11 | 2012-03-14 | 邢台纳科诺尔极片轧制设备有限公司 | Electromagnetism heated battery pole piece rolling mill |
| CN103658189A (en) * | 2013-11-16 | 2014-03-26 | 中国重型机械研究院股份公司 | Device for on-line roller heating and temperature controlling for warm-rolling mill |
| CN203764863U (en) * | 2014-01-22 | 2014-08-13 | 浙江精龙刀剑有限公司 | Knife and sword initial blank hot roll-press forming machine |
| CN104858234A (en) * | 2014-02-25 | 2015-08-26 | 中信国安盟固利动力科技有限公司 | Method and system for induction heating of hot-rolling mill rollers for lithium battery pole pieces |
| CN204272419U (en) * | 2014-12-19 | 2015-04-15 | 河南华中电子设备制造有限公司 | The water cooling plant of heater coil in a kind of electromagnetic induction heater |
| CN106986480A (en) * | 2017-05-25 | 2017-07-28 | 江苏永益环保科技有限公司 | Cutting fluid waste water treatment system |
| CN109412515A (en) * | 2018-10-30 | 2019-03-01 | 阮镇荣 | A kind of solar panel adjusts fixed device and its adjusting method |
| CN210093994U (en) * | 2019-03-27 | 2020-02-21 | 景宁丽恒模具加工厂 | Automatic durian picking equipment |
| CN212857127U (en) * | 2020-07-14 | 2021-04-02 | 无锡莱德金属制品有限公司 | Thickness control mechanism for rolling plate shape |
| CN213579547U (en) * | 2020-12-10 | 2021-06-29 | 金卡智能集团股份有限公司 | Metering device and flow meter |
| CN113976630A (en) * | 2021-11-18 | 2022-01-28 | 燕山大学 | Device capable of preheating roller at constant temperature and operation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘志栋: "TiAl合金温辊热轧工艺开发及优化", 中国硕士学位论文全文数据库-工程科技I辑, pages 1 - 72 * |
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