CN113088671A - Control method for reducing abrasion of carbon sleeve roller - Google Patents
Control method for reducing abrasion of carbon sleeve roller Download PDFInfo
- Publication number
- CN113088671A CN113088671A CN202110305669.1A CN202110305669A CN113088671A CN 113088671 A CN113088671 A CN 113088671A CN 202110305669 A CN202110305669 A CN 202110305669A CN 113088671 A CN113088671 A CN 113088671A
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- grooves
- roller
- speed
- carbon
- carbon sleeve
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005299 abrasion Methods 0.000 title abstract description 7
- 238000009434 installation Methods 0.000 claims description 7
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910000976 Electrical steel Inorganic materials 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/563—Rolls; Drums; Roll arrangements
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a control method for reducing wear of a carbon sleeve roller, and belongs to the technical field of silicon steel production. The control method for reducing the abrasion of the carbon sleeve roller comprises the following steps: sleeving a roller core in a carbon sleeve to obtain a roller body, wherein a first end of the roller core is circumferentially and axially fixed in the carbon sleeve, and a second end of the roller core is circumferentially fixed in the carbon sleeve; mounting the roller bodies, wherein the heights of the roller bodies are consistent; and controlling the speed of each roller body to enable the speed of each roller body to reach the set speed. The control method for reducing the abrasion of the carbon shell roller prolongs the service life of the furnace roller and improves the strip steel plate shape, thereby further prolonging the maintenance period and providing the effective operation rate of the unit.
Description
Technical Field
The invention relates to the technical field of silicon steel production, in particular to a control method for reducing wear of a carbon sleeve roller.
Background
In the production process of the continuous annealing unit, the annealing furnace is one of key devices, and the stress generated in the cold rolling process of the strip steel is eliminated by decarburization and recrystallization annealing after the surface of the cold-rolled strip steel is cleaned, so that good magnetic performance and mechanical performance are obtained.
The carbon shell roll is used as a main hearth roll of an annealing furnace because of its excellent lubricity at high temperatures. The carbon sleeve roller is abraded due to long-term friction of strip steel, even a lug boss is ground at the edge part of the carbon sleeve roller and is forced to be taken off, and the unit cost is greatly increased due to large consumption of spare parts.
Disclosure of Invention
The invention provides a control method for reducing wear of a carbon sleeve roller, which solves or partially solves the technical problems of low service life, high spare part consumption and increased unit cost of the carbon sleeve roller in the prior art.
In order to solve the technical problem, the invention provides a control method for reducing the abrasion of a carbon sleeve roller, which comprises the following steps: sleeving a roller core in a carbon sleeve to obtain a roller body, wherein a first end of the roller core is circumferentially and axially fixed in the carbon sleeve, and a second end of the roller core is circumferentially fixed in the carbon sleeve; mounting the roller bodies, wherein the heights of the roller bodies are consistent; and controlling the speed of each roller body to enable the speed of each roller body to reach the set speed.
Further, the sleeving the roller core in the carbon sleeve comprises: the roller core is fixedly arranged on the carbon sleeve in a two-key mode at two sides.
Furthermore, a plurality of first grooves are formed in the circumferential surface of the first end of the roller core, a plurality of first through grooves are formed in the circumferential surface of the first end of the carbon sleeve, and the first grooves correspond to the first through grooves one to one; the first fixing keys are in one-to-one correspondence with the first through grooves, and penetrate through the corresponding first through grooves to be embedded into the first grooves; the circumferential surface of the second end of the roller core is provided with a plurality of second grooves, the circumferential surface of the second end of the carbon sleeve is provided with a plurality of second through grooves, and the plurality of second grooves correspond to the plurality of second through grooves one to one; the second fixing keys are in one-to-one correspondence with the second through grooves, and penetrate through the corresponding second through grooves to be embedded into the second grooves.
Furthermore, two first grooves are formed in the circumferential surface of the first end of the roller core along the horizontal direction, two first through grooves are formed in the circumferential surface of the first end of the carbon sleeve along the horizontal direction, and the two first grooves correspond to the two first through grooves one to one; the two first fixed keys correspond to the two first through grooves one by one, and the first fixed keys penetrate through the corresponding first through grooves and are embedded into the first grooves; the circumferential surface of the second end of the roller core is provided with two second grooves along the vertical direction, the circumferential surface of the first end of the carbon sleeve is provided with a plurality of second through grooves along the horizontal direction, and the two second grooves correspond to the two second through grooves one by one; the two second fixed keys correspond to the two second through grooves one by one, and the second fixed keys penetrate through the corresponding first through grooves and are embedded into the first grooves.
Furthermore, the two first grooves are symmetrical by taking the vertical central line of the roller core as a symmetrical axis; the two second grooves are symmetrical by taking the transverse center line of the roller core as a symmetry axis.
Further, the supporting position gap between the roller core and the carbon sleeve is 1.9-2.45 mm.
Further, the gap between the roller core and the middle part of the carbon sleeve is 7.9-8.6 mm.
Further, the roller bodies are installed, and the consistent height of each roller body comprises: after the roller bodies are installed, controlling the levelness of the installation of each roller body according to a uniform horizontal line; after the roller bodies are installed, controlling the verticality of installation of each roller body according to a uniform vertical line; and enabling the height of each roller body to be consistent.
Further, the controlling the speed of each roller body to make the speed of each roller body reach the set speed comprises: a speed sensor is arranged at each roller body; the controller receives a speed signal sent by each speed sensor, and the controller obtains a speed value of each roller body; a speed threshold value of each roller body is set in the controller, and the speed value is compared with the threshold value to obtain a difference value; each roller body corresponds to one motor, and each motor corresponds to one frequency converter; and the controller sends a control signal to the frequency converter according to the difference value, and the frequency converter sends a rotating speed signal to the corresponding motor.
Further, the outer surface of the carbon sleeve is subjected to an antioxidant impregnation treatment containing a chromium anhydride.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the roller core is sleeved in the carbon sleeve to obtain the roller bodies, wherein the first ends of the roller cores are circumferentially and axially fixed in the carbon sleeve, and the second ends of the roller cores are circumferentially fixed in the carbon sleeve, so that the fit clearance between the carbon sleeve and the roller cores can be reduced, the vibration value of the furnace roller is reduced, the running stability of the furnace roller is improved, and the roller bodies are installed and have the same height, so that the control precision of the furnace roller speed can be improved, the speed of each roller body is kept consistent with the speed of strip steel, and the speed of each roller body is controlled to reach the set speed, so that the abrasion caused by the speed difference between the furnace roller speed and the strip steel speed can be reduced, the service life of the furnace roller is prolonged, the strip steel shape is improved, the overhaul period is further prolonged, and the effective operation rate of a unit is provided.
Drawings
FIG. 1 is a flow chart of a control method for reducing carbon shell roll wear according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the connection of the core to the carbon sleeve of the control method of reducing wear of the carbon sleeve roll of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a sectional view taken along line B-B of fig. 2.
Detailed Description
Referring to fig. 1, a control method for reducing wear of a carbon shell roller according to an embodiment of the present invention includes the following steps:
the roller core 1 is sleeved in the carbon sleeve 2 to obtain a roller body, wherein the first end of the roller core 1 is circumferentially and axially fixed in the carbon sleeve 2, and the second end of the roller core 1 is circumferentially fixed in the carbon sleeve 2.
And (4) mounting the roller bodies, wherein the heights of all the roller bodies are consistent.
And controlling the speed of each roller body to enable the speed of each roller body to reach the set speed.
This application embodiment is because locate the carbon cover 2 with 1 covers of roller core in, obtain the roll body, wherein, the first end of roller core 1 carries out circumference and axial fixity in carbon cover 2, the second end of roller core 1 carries out circumference fixity in carbon cover 2, so, can make carbon cover 2 and 1 cooperation clearances of roller core reduce, reduce stove roller vibration value, improve stove roller operating stability, because install the roll body, the highly uniform of every roll body, therefore, can improve the control accuracy of stove roller speed, make the speed of every roll body keep unanimous with the speed of belted steel, because control the speed of every roll body, make the speed of every roll body all reach the settlement speed, so, can reduce the wearing and tearing that stove roller speed and belted steel speed difference lead to, prolong stove roller life, improve the plate shape, thereby further prolong the overhaul period, provide the unit effective operation rate.
Referring to fig. 2-4, the nesting of the roll core 1 within the carbon sleeve 2 comprises:
the roller core 1 is fixedly arranged on the carbon sleeve 2 in a two-key mode at two sides, so that uneven wear caused by jumping of the carbon sleeve 2 in the operation process of the roller body is avoided.
The circumferential surface of the first end of the roller core 1 is provided with a plurality of first grooves, the circumferential surface of the first end of the carbon sleeve 2 is provided with a plurality of first through grooves, and the first grooves correspond to the first through grooves one to one; a plurality of first fixed keys 3 and a plurality of first logical groove one-to-one correspond, and first fixed key 3 passes corresponding first logical groove and imbeds in the first recess. The circumferential surface of the second end of the roller core 1 is provided with a plurality of second grooves, the circumferential surface of the second end of the carbon sleeve 2 is provided with a plurality of second through grooves, and the plurality of second grooves correspond to the plurality of second through grooves one to one; the second fixed keys 4 correspond to the second through grooves one by one, and the second fixed keys 4 penetrate through the corresponding second through grooves to be embedded into the second grooves.
The first end of roller core 1 is fixed in carbon sleeve 2 through a plurality of first fixed keys 3, and the second end of roller core is fixed in carbon sleeve 2 through a plurality of second fixed keys 4, can restrict carbon sleeve 2 axial displacement on roller core 1 at the hot state, reduces the fit clearance of carbon sleeve 2 and roller core 1, reduces stove roller vibration value, improves stove roller operating stability.
Wherein, two first recesses have been seted up along the horizontal direction on global of the first end of roller core 1, and two first logical grooves have been seted up along the horizontal direction on global of the first end of carbon cover 2, and two first recesses and two first logical groove one-to-ones, two first fixed key 3 and two first logical groove one-to-ones, and first fixed key 3 passes in the first recess of corresponding first logical groove embedding. The circumferential surface of the second end of the roller core 1 is provided with two second grooves along the vertical direction, the circumferential surface of the first end of the carbon sleeve 2 is provided with a plurality of second through grooves along the horizontal direction, and the two second grooves correspond to the two second through grooves one by one; the two second fixed keys 4 correspond to the two second through grooves one by one, and the second fixed keys 4 penetrate through the corresponding first through grooves to be embedded into the first grooves.
The two first grooves are symmetrical by taking the vertical central line of the roller core 1 as a symmetrical axis; the two second grooves are symmetrical with the transverse center line of the roller core 1 as a symmetry axis.
Fix the first end of roller core 1 in carbon cover 2 through two first fixed keys 3, hold the second of roller core through two second fixed keys 4 and fix in carbon cover 2, can restrict carbon cover 2 axial displacement on roller core 1 at the hot state, reduce the fit clearance of carbon cover 2 and roller core 1, reduce stove roller vibration value, improve stove roller operating stability, simultaneously, do not damage the structural strength of carbon cover 2.
The supporting position gap between the roller core 1 and the carbon sleeve 2 is 1.9-2.45mm, the middle gap between the roller core 1 and the carbon sleeve 2 is 7.9-8.6mm, the deformation of the roller core 1 during the operation of the carbon sleeve 2 is increased during the assembly and the operation, and the expansion crack of the carbon sleeve 2 caused by the deformation of the roller core 1 is avoided.
Specifically, install the roll body, the highly uniform of every roll body includes:
after the roller bodies are installed, controlling the levelness of the installation of each roller body according to a uniform horizontal line; after the roller bodies are installed, the verticality of installation of each roller body is controlled according to a uniform vertical line, so that the heights of the roller bodies are consistent, the installation and the swinging of the roller bodies are initial conditions for improving the speed precision control, the height consistency of each roller body is guaranteed, and the subsequent speed regulation of each roller body is facilitated.
Specifically, controlling the speed of each roller body such that the speed of each roller body reaches the set speed includes:
and a speed sensor is arranged at each roller body.
The controller receives the speed signal sent by each speed sensor, and the controller obtains the speed value of each roller body.
The controller is internally provided with a speed threshold value of each roller body, and the speed value is compared with the threshold value to obtain a difference value.
Each roller body corresponds to one motor, and each motor corresponds to one frequency converter.
And the controller sends a control signal to the frequency converter according to the difference value, and the frequency converter sends a rotating speed signal to the corresponding motor.
The speed of each roller body can be controlled, the speed of each roller body can reach the set speed, the abrasion caused by the speed difference of the furnace roller and the strip steel speed can be reduced, the service life of the furnace roller is prolonged, the strip steel plate shape is improved, the overhaul period is further prolonged, and the effective operation rate of a unit is increased
Specifically, the outer surface of the carbon sleeve 2 is subjected to an antioxidant dipping treatment containing chromic anhydride, so that the carbon sleeve 2 has antioxidant capacity, and the service life of the carbon sleeve 2 is prolonged.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A control method for reducing wear of a carbon shell roller is characterized by comprising the following steps:
sleeving a roller core in a carbon sleeve to obtain a roller body, wherein a first end of the roller core is circumferentially and axially fixed in the carbon sleeve, and a second end of the roller core is circumferentially fixed in the carbon sleeve;
mounting the roller bodies, wherein the heights of the roller bodies are consistent;
and controlling the speed of each roller body to enable the speed of each roller body to reach the set speed.
2. The method of claim 1, wherein sleeving the roll core within the carbon sleeve comprises:
the roller core is fixedly arranged on the carbon sleeve in a two-key mode at two sides.
3. The control method for reducing wear of a carbon shell roll as set forth in claim 2, wherein:
the circumferential surface of the first end of the roller core is provided with a plurality of first grooves, the circumferential surface of the first end of the carbon sleeve is provided with a plurality of first through grooves, and the first grooves are in one-to-one correspondence with the first through grooves;
the first fixing keys are in one-to-one correspondence with the first through grooves, and penetrate through the corresponding first through grooves to be embedded into the first grooves;
the circumferential surface of the second end of the roller core is provided with a plurality of second grooves, the circumferential surface of the second end of the carbon sleeve is provided with a plurality of second through grooves, and the plurality of second grooves correspond to the plurality of second through grooves one to one;
the second fixing keys are in one-to-one correspondence with the second through grooves, and penetrate through the corresponding second through grooves to be embedded into the second grooves.
4. The control method for reducing wear of a carbon shell roll as set forth in claim 3, wherein:
the circumferential surface of the first end of the roller core is provided with two first grooves along the horizontal direction, the circumferential surface of the first end of the carbon sleeve is provided with two first through grooves along the horizontal direction, and the two first grooves correspond to the two first through grooves one to one;
the two first fixed keys correspond to the two first through grooves one by one, and the first fixed keys penetrate through the corresponding first through grooves and are embedded into the first grooves;
the circumferential surface of the second end of the roller core is provided with two second grooves along the vertical direction, the circumferential surface of the first end of the carbon sleeve is provided with a plurality of second through grooves along the horizontal direction, and the two second grooves correspond to the two second through grooves one by one;
the two second fixed keys correspond to the two second through grooves one by one, and the second fixed keys penetrate through the corresponding first through grooves and are embedded into the first grooves.
5. The control method for reducing wear of a carbon shell roll as set forth in claim 4, wherein:
the two first grooves are symmetrical by taking the vertical central line of the roller core as a symmetrical axis;
the two second grooves are symmetrical by taking the transverse center line of the roller core as a symmetry axis.
6. The control method for reducing wear of a carbon shell roll as set forth in claim 1, wherein:
the supporting position gap between the roller core and the carbon sleeve is 1.9-2.45 mm.
7. The control method for reducing wear of a carbon shell roll as set forth in claim 1, wherein:
and the gap between the roller core and the middle part of the carbon sleeve is 7.9-8.6 mm.
8. The method of claim 1, wherein the mounting roller bodies, each roller body having a uniform height, comprises:
after the roller bodies are installed, controlling the levelness of the installation of each roller body according to a uniform horizontal line;
after the roller bodies are installed, controlling the verticality of installation of each roller body according to a uniform vertical line;
and enabling the height of each roller body to be consistent.
9. The method of claim 1, wherein controlling the speed of each roller body to achieve a set speed comprises:
a speed sensor is arranged at each roller body;
the controller receives a speed signal sent by each speed sensor, and the controller obtains a speed value of each roller body;
a speed threshold value of each roller body is set in the controller, and the speed value is compared with the threshold value to obtain a difference value;
each roller body corresponds to one motor, and each motor corresponds to one frequency converter;
and the controller sends a control signal to the frequency converter according to the difference value, and the frequency converter sends a rotating speed signal to the corresponding motor.
10. The control method for reducing wear of a carbon shell roll as set forth in claim 1, wherein: and the outer surface of the carbon sleeve is subjected to an antioxidant dipping treatment containing chromic anhydride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110305669.1A CN113088671A (en) | 2021-03-19 | 2021-03-19 | Control method for reducing abrasion of carbon sleeve roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110305669.1A CN113088671A (en) | 2021-03-19 | 2021-03-19 | Control method for reducing abrasion of carbon sleeve roller |
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| Publication Number | Publication Date |
|---|---|
| CN113088671A true CN113088671A (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110305669.1A Pending CN113088671A (en) | 2021-03-19 | 2021-03-19 | Control method for reducing abrasion of carbon sleeve roller |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000130428A (en) * | 1998-10-22 | 2000-05-12 | Mitsubishi Rayon Co Ltd | Composite roll and its manufacture |
| CN102816919A (en) * | 2012-08-24 | 2012-12-12 | 中冶南方(武汉)威仕工业炉有限公司 | Carbon sleeve positioning device |
| CN104404238A (en) * | 2014-11-19 | 2015-03-11 | 中冶南方(武汉)威仕工业炉有限公司 | Ceramic roller device for silicon steel horizontal type continuous annealing furnace |
| CN207397116U (en) * | 2017-10-31 | 2018-05-22 | 通用电气（武汉）自动化有限公司 | A kind of galvanized wire alkali cleaning area brush roll speed adjusting device |
-
2021
- 2021-03-19 CN CN202110305669.1A patent/CN113088671A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000130428A (en) * | 1998-10-22 | 2000-05-12 | Mitsubishi Rayon Co Ltd | Composite roll and its manufacture |
| CN102816919A (en) * | 2012-08-24 | 2012-12-12 | 中冶南方(武汉)威仕工业炉有限公司 | Carbon sleeve positioning device |
| CN104404238A (en) * | 2014-11-19 | 2015-03-11 | 中冶南方(武汉)威仕工业炉有限公司 | Ceramic roller device for silicon steel horizontal type continuous annealing furnace |
| CN207397116U (en) * | 2017-10-31 | 2018-05-22 | 通用电气（武汉）自动化有限公司 | A kind of galvanized wire alkali cleaning area brush roll speed adjusting device |
Non-Patent Citations (2)
| Title |
|---|
| 云正宽: "《冶金工程设计，第3册，机电设备与工业炉窑设计》", 30 June 2006, 冶金工业出版社 * |
| 张景进等: "《热连轧带钢生产实训》", 30 June 2014, 冶金工业出版社 * |
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Application publication date: 20210709 |
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