CN117732694A - Uniformity control method for oriented silicon steel coating - Google Patents
Uniformity control method for oriented silicon steel coating Download PDFInfo
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- CN117732694A CN117732694A CN202410182693.4A CN202410182693A CN117732694A CN 117732694 A CN117732694 A CN 117732694A CN 202410182693 A CN202410182693 A CN 202410182693A CN 117732694 A CN117732694 A CN 117732694A
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- coating
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- silicon steel
- oriented silicon
- rollers
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- 238000000576 coating method Methods 0.000 title claims abstract description 143
- 239000011248 coating agent Substances 0.000 title claims abstract description 141
- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 230000007547 defect Effects 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 230000004075 alteration Effects 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 239000000391 magnesium silicate Substances 0.000 description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 description 2
- 235000019792 magnesium silicate Nutrition 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Abstract
The invention belongs to the technical field of coating of surface coatings of steel materials, in particular to a uniformity control method of an oriented silicon steel coating, which comprises the steps of obtaining coating thicknesses corresponding to different pressure values between upper rollers on two sides and corresponding lower rollers of a coating machine and obtaining differences of the pressure values between the upper rollers on two sides and the corresponding lower rollers; and observing the pressure value between the upper rollers and the corresponding lower rollers on both sides in real time, and adjusting the coating on both sides in real time according to the real-time pressure value to realize the uniformity control of the oriented silicon steel coating. The invention solves the problem that the thickness of the coating is inconvenient to measure in real time by utilizing the technical scheme that the action of continuously extruding the steel strip between the two rollers when the coating is coated can generate visual pressure value, can adjust the coating in real time, realizes the uniformity control of the oriented silicon steel coating, reduces the defects of chromatic aberration, bloom, blackening, oxidation color and the like of a finished product by more than 10 percent compared with the prior art, and basically avoids the occurrence of a trumpet-shaped tower coil.
Description
Technical Field
The invention relates to the technical field of coating of surface coatings of steel materials, in particular to a uniformity control method of an oriented silicon steel coating.
Background
At present, in the production process of oriented silicon steel, a magnesium oxide coating is required to be coated on the surface of a steel plate before high-temperature annealing, and in the annealing process, the magnesium oxide coating reacts with oxides formed on the surface layer of a steel plate substrate to generate a magnesium silicate bottom layer, so that the quality of the magnesium silicate bottom layer directly influences the insulation performance and the adhesiveness of a finished product, and the surface appearance quality is also influenced. However, in the production process, due to the thickness difference of the magnesium oxide coating, defects such as chromatic aberration, bloom, blackening, oxidation and the like often occur in a finished product, coating unevenness easily occurs on two sides of a steel plate, the thickness of the coating on two sides is inconsistent, a trumpet-shaped tower coil can appear in winding, a side watermark blackening phenomenon can occur after high-temperature annealing, the product is scrapped, and large economic loss is caused for enterprises.
Disclosure of Invention
In order to solve the problems in the prior art, the main purpose of the invention is to provide a uniformity control method for an oriented silicon steel coating.
In order to solve the technical problems, according to one aspect of the present invention, the following technical solutions are provided:
a uniformity control method of an oriented silicon steel coating comprises the following steps:
s1, acquiring coating thicknesses corresponding to different pressure values between upper rollers and corresponding lower rollers of the two sides of a coating machine, and acquiring a difference value of the pressure values between the upper rollers and the corresponding lower rollers;
s2, observing the pressure value between the upper rollers on the two sides and the corresponding lower rollers in real time, and adjusting the lower rollers of the coating machine in real time according to the real-time pressure value to realize uniformity control of the oriented silicon steel coating.
As a preferable scheme of the uniformity control method of the oriented silicon steel coating, the invention comprises the following steps: in the step S1, a pressure value is generated by continuously extruding the steel strip between the upper roller and the lower roller when the coating is applied, the coating thickness corresponding to the pressure value is recorded, and the coating thickness corresponding to different pressure values between the upper roller and the lower roller on both sides of the coating machine and the difference value of the pressure values between the upper roller and the lower roller on both sides are obtained.
As a preferable scheme of the uniformity control method of the oriented silicon steel coating, the invention comprises the following steps: in the step S1, pressure sensors are additionally arranged at positions between upper rollers on two sides of the coating machine and the frame.
As a preferable scheme of the uniformity control method of the oriented silicon steel coating, the invention comprises the following steps: in the step S1, the lower roller is a hydraulic lifting roller.
As a preferable scheme of the uniformity control method of the oriented silicon steel coating, the invention comprises the following steps: in the step S1, the adjustable screw rods on the two sides of the lower roller of the coating layer are adjusted to correspond to different pressures, the thickness of the coating layer on the two sides is detected and the pressure value is recorded after the lower roller is rolled down, so that after a plurality of rollers are produced, the coating thickness corresponding to different pressure values between the upper roller on the two sides and the corresponding lower roller of the coating machine and the difference value of the pressure value between the upper roller on the two sides and the corresponding lower roller can be obtained.
As a preferable scheme of the uniformity control method of the oriented silicon steel coating, the invention comprises the following steps: in the step S1, the coating thicknesses corresponding to different pressure values between the upper rollers and the lower rollers on both sides of the coating machine and the difference values between the pressure values between the upper rollers and the lower rollers on both sides are updated periodically.
As a preferable scheme of the uniformity control method of the oriented silicon steel coating, the invention comprises the following steps: in the step S2, the adjustable screw rods on the two sides of the lower roller of the coating machine are adjusted in real time according to the real-time pressure value.
As a preferable scheme of the uniformity control method of the oriented silicon steel coating, the invention comprises the following steps: the adjustable screw rod can be remotely adjusted through the operation table.
As a preferable scheme of the uniformity control method of the oriented silicon steel coating, the invention comprises the following steps: in the step S2, a pressure sensor display device is additionally installed on the operation table, and the pressure value is displayed on the operation table, so that the operation table is convenient for real-time observation.
As a preferable scheme of the uniformity control method of the oriented silicon steel coating, the invention comprises the following steps: in the step S2, according to the pressure value displayed by the operation table, the adjustable screw rods on the two sides of the lower roller of the coating layer are adjusted in real time through the operation table.
The beneficial effects of the invention are as follows:
the invention provides a uniformity control method of an oriented silicon steel coating, which comprises the steps of obtaining coating thicknesses corresponding to different pressure values between upper rollers on two sides and corresponding lower rollers of a coating machine and difference values of the pressure values between the upper rollers on two sides and the corresponding lower rollers; and observing the pressure value between the upper rollers and the corresponding lower rollers on both sides in real time, and adjusting the coating on both sides in real time according to the real-time pressure value to realize the uniformity control of the oriented silicon steel coating. The invention solves the problem that the thickness of the coating is inconvenient to measure in real time by utilizing the technical scheme that the action of continuously extruding the steel strip between the two rollers when the coating is coated can generate visual pressure value, can adjust the coating in real time, realizes the uniformity control of the oriented silicon steel coating, reduces the defects of chromatic aberration, bloom, blackening, oxidation color and the like of a finished product by more than 10 percent compared with the prior art, and basically avoids the occurrence of a trumpet-shaped tower coil.
Detailed Description
The following description will be made clearly and fully with reference to the technical solutions in the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the production process of the oriented silicon steel, due to the thickness difference of the magnesia coating, the finished product often has the defects of color difference, bloom, blackening, oxidation color and the like, coating unevenness easily occurs on two sides of the steel plate, the thickness of the coating on two sides is inconsistent, a horn-shaped tower coil can appear in winding, a side watermark blackening phenomenon can occur after high-temperature annealing, the product is scrapped, and large economic loss is caused for enterprises. In order to solve the problems in the production process of the existing oriented silicon steel, the invention provides a uniformity control method of an oriented silicon steel coating, an existing coating machine is improved, the coating machine can only carry out coating before to the improved coating machine, and two sides of the coating can be adjusted according to a pressure value.
The embodiment of the invention provides a uniformity control method of an oriented silicon steel coating, which comprises the following steps:
s1, acquiring coating thicknesses corresponding to different pressure values between upper rollers and corresponding lower rollers of the two sides of a coating machine, and acquiring a difference value of the pressure values between the upper rollers and the corresponding lower rollers;
s2, observing the pressure value between the upper rollers on the two sides and the corresponding lower rollers in real time, and adjusting the lower rollers of the coating machine in real time according to the real-time pressure value to realize uniformity control of the oriented silicon steel coating.
The invention solves the problem that the coating thickness is inconvenient to measure in real time when coating the coating by utilizing the technical scheme that the action of continuously extruding the steel belt between the two rollers can generate visual pressure values when coating the coating, and obtains the coating thickness corresponding to different pressure values between the upper rollers on two sides and the corresponding lower rollers of the coating machine and the difference value of the pressure values between the upper rollers on two sides and the corresponding lower rollers; and in the production process, the pressure value between the upper rollers and the corresponding lower rollers on both sides is observed in real time, and the coating on both sides is adjusted in real time according to the real-time pressure value, so that the uniformity of the oriented silicon steel coating is controlled.
In one embodiment of the present invention, in the step S1, the pressure value is generated by continuously extruding the steel strip between the upper roller and the lower roller when the coating is applied, the coating thickness corresponding to the pressure value is recorded, and the coating thickness corresponding to the different pressure values between the upper roller and the lower roller on both sides of the coating machine and the difference value between the pressure values between the upper roller and the lower roller on both sides are obtained.
In one embodiment of the present invention, in the step S1, pressure sensors are additionally installed at positions between the upper rollers and the frame on both sides of the coater.
In one embodiment of the present invention, in the step S1, the lower roller is a hydraulic lifting roller.
In one embodiment of the present invention, in the step S1, the coating lower roller double-sided adjustable screw is adjusted, and the adjustable screw can be remotely adjusted through the operation table. Corresponding to different pressures, detecting the thickness of the coating on the two sides after the coating is rolled down, and recording the pressure value, so that the coating thickness corresponding to the different pressure values between the upper rollers on the two sides and the corresponding lower rollers of the coating machine and the difference value of the pressure values between the upper rollers on the two sides and the corresponding lower rollers can be obtained after a plurality of rolls are produced. Table 1 shows the adjustment during the trial of the oriented silicon steel coating production line according to one embodiment of the present invention.
TABLE 1 adjustment during the trial run of oriented silicon steel coating production lines
As can be seen from table 1, as the pressure value is adjusted, the coating thickness is correspondingly increased or decreased. The coating thickness corresponding to each pressure value is obtained through early trial, and the coating thickness corresponding to different pressure values between the upper rollers on two sides (a working side and a transmission side) of the coating machine and the corresponding lower roller and the difference value of the pressure values between the upper rollers on two sides and the corresponding lower roller can be obtained.
In one embodiment of the present invention, in the step S1, the coating thicknesses corresponding to different pressure values between the upper rollers and the lower rollers on both sides of the coating machine and the difference between the pressure values between the upper rollers and the lower rollers on both sides are updated periodically; in special stages of coating new steel types, production line debugging and the like, the coating thickness corresponding to different pressure values between the upper rollers on two sides and the corresponding lower rollers of the coating machine and the difference value of the pressure values between the upper rollers on two sides and the corresponding lower rollers are required to be updated.
In one embodiment of the present invention, in the step S2, the lower roller double-sided adjustable screw of the coating machine is adjusted in real time according to the real-time pressure value; the adjustable screw rod can be remotely adjusted through the operation table.
In one embodiment of the present invention, in the step S2, a pressure sensor display device is additionally installed on the operation console, so as to display the pressure value to the operation console, thereby facilitating real-time observation.
In one embodiment of the present invention, in the step S2, the two-sided adjustable screw of the lower roller of the coating layer is adjusted in real time by the operation table according to the pressure value displayed by the operation table.
In the production process of the oriented silicon steel coating line according to the further embodiment of the invention, the pressure values between the upper rollers on two sides (working side and transmission side) and the corresponding lower rollers are observed in real time, and the lower rollers of the coating machine are adjusted in real time according to the real-time pressure values as shown in table 2.
Table 2 adjustment during production of oriented silicon steel coating line
As can be seen from table 2, by observing the pressure values between the upper rollers on both sides (working side and transmission side) and the corresponding lower rollers in real time, and adjusting the lower rollers of the coating machine in real time according to the real-time pressure values, the steel plate passes through the coating production line, and after adjusting the pressure of the coating machine, the coating thickness of the finished product position corresponding to the adjusting moment is detected by timely rolling down, as shown in table 2, the embodiment of the invention realizes the uniformity control of the oriented silicon steel coating.
The method comprises the steps of obtaining coating thicknesses corresponding to different pressure values between upper rollers and corresponding lower rollers on two sides of a coating machine and the difference value of the pressure values between the upper rollers and the corresponding lower rollers on two sides; and observing the pressure value between the upper rollers and the corresponding lower rollers on both sides in real time, and adjusting the coating on both sides in real time according to the real-time pressure value to realize the uniformity control of the oriented silicon steel coating. The invention solves the problem that the thickness of the coating is inconvenient to measure in real time by utilizing the technical scheme that the action of continuously extruding the steel strip between the two rollers when the coating is coated can generate visual pressure value, can adjust the coating in real time, realizes the uniformity control of the oriented silicon steel coating, reduces the defects of chromatic aberration, bloom, blackening, oxidation color and the like of a finished product by more than 10 percent compared with the prior art, and basically avoids the occurrence of a trumpet-shaped tower coil.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the content of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (10)
1. The uniformity control method of the oriented silicon steel coating is characterized by comprising the following steps of:
s1, acquiring coating thicknesses corresponding to different pressure values between upper rollers and corresponding lower rollers of the two sides of a coating machine, and acquiring a difference value of the pressure values between the upper rollers and the corresponding lower rollers;
s2, observing the pressure value between the upper rollers on the two sides and the corresponding lower rollers in real time, and adjusting the lower rollers of the coating machine in real time according to the real-time pressure value to realize uniformity control of the oriented silicon steel coating.
2. The method for controlling the uniformity of a coating of oriented silicon steel according to claim 1, wherein in the step S1, a pressure value is generated by continuously extruding a steel strip between an upper roll and a lower roll when the coating is applied, a coating thickness corresponding to the pressure value is recorded, and a coating thickness corresponding to different pressure values between the upper roll and the lower roll on both sides of the coating machine and a difference value between the pressure values between the upper roll and the lower roll on both sides of the coating machine are obtained.
3. The method for controlling the uniformity of a coating of oriented silicon steel according to claim 1, wherein in the step S1, pressure sensors are installed at positions between upper rollers and a frame on both sides of the coating machine.
4. The method for controlling the uniformity of a coating of oriented silicon steel according to claim 1, wherein in the step S1, the lower roller is a hydraulic lifting roller.
5. The method for controlling the uniformity of the coating of the oriented silicon steel according to claim 1, wherein in the step S1, the adjustable screw rods on both sides of the lower roller of the coating are adjusted to correspond to different pressures, the thickness of the coating on both sides is detected and the pressure value is recorded after the lower roller is rolled down, so that the coating thickness corresponding to different pressure values between the upper roller on both sides and the corresponding lower roller of the coating machine and the difference value of the pressure value between the upper roller on both sides and the corresponding lower roller can be obtained after a plurality of rollers are produced.
6. The method for controlling the uniformity of a coating of oriented silicon steel according to claim 1, wherein in the step S1, the coating thickness corresponding to different pressure values between the upper double-sided roller and the lower corresponding roller of the coating machine and the difference between the pressure values between the upper double-sided roller and the lower corresponding roller are updated periodically.
7. The method for controlling the uniformity of a coating of oriented silicon steel according to claim 1, wherein in the step S2, the adjustable screw rods on both sides of the lower roller of the coating machine are adjusted in real time according to the real-time pressure value.
8. The method for controlling the uniformity of a coating of oriented silicon steel according to claim 5 or 7, wherein the adjustable screw is remotely adjustable by means of an operating table.
9. The method for controlling the uniformity of the oriented silicon steel coating according to claim 1, wherein in the step S2, a pressure sensor display device is additionally installed on the operation table to display the pressure value to the operation table, so that the operation table is convenient for real-time observation.
10. The method for controlling the uniformity of a coating of oriented silicon steel according to claim 8, wherein in the step S2, the adjustable screw rods on both sides of the lower roller of the coating are adjusted in real time by the operation table according to the pressure value displayed by the operation table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410182693.4A CN117732694A (en) | 2024-02-19 | 2024-02-19 | Uniformity control method for oriented silicon steel coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410182693.4A CN117732694A (en) | 2024-02-19 | 2024-02-19 | Uniformity control method for oriented silicon steel coating |
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| CN117732694A true CN117732694A (en) | 2024-03-22 |
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| CN202410182693.4A Pending CN117732694A (en) | 2024-02-19 | 2024-02-19 | Uniformity control method for oriented silicon steel coating |
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|---|---|---|---|---|
| JPH03178357A (en) * | 1989-12-07 | 1991-08-02 | Nkk Corp | Apparatus for controlling film thickness of color coating |
| CN202921518U (en) * | 2012-10-19 | 2013-05-08 | 襄阳博亚精工机器有限公司 | Roller coater pressure regulating device |
| US20150064343A1 (en) * | 2011-10-17 | 2015-03-05 | Baoshan Iron & Steel Co., Ltd | Method of producing extremely thick insulation coating on surface of electrical steel |
| CN112170090A (en) * | 2020-09-18 | 2021-01-05 | 武汉钢铁有限公司 | Method and device for pre-coating environment-friendly coating on cold-rolled silicon steel strip |
| CN214289070U (en) * | 2020-12-15 | 2021-09-28 | 周俊杰 | Coating roller pressure control device suitable for two-roller coating |
| CN219463909U (en) * | 2023-03-07 | 2023-08-04 | 武汉钢铁有限公司 | Oriented silicon steel magnesium oxide coating device |
-
2024
- 2024-02-19 CN CN202410182693.4A patent/CN117732694A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03178357A (en) * | 1989-12-07 | 1991-08-02 | Nkk Corp | Apparatus for controlling film thickness of color coating |
| US20150064343A1 (en) * | 2011-10-17 | 2015-03-05 | Baoshan Iron & Steel Co., Ltd | Method of producing extremely thick insulation coating on surface of electrical steel |
| CN202921518U (en) * | 2012-10-19 | 2013-05-08 | 襄阳博亚精工机器有限公司 | Roller coater pressure regulating device |
| CN112170090A (en) * | 2020-09-18 | 2021-01-05 | 武汉钢铁有限公司 | Method and device for pre-coating environment-friendly coating on cold-rolled silicon steel strip |
| CN214289070U (en) * | 2020-12-15 | 2021-09-28 | 周俊杰 | Coating roller pressure control device suitable for two-roller coating |
| CN219463909U (en) * | 2023-03-07 | 2023-08-04 | 武汉钢铁有限公司 | Oriented silicon steel magnesium oxide coating device |
Non-Patent Citations (1)
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| 杨志康;: "硅钢涂层机的改进与涂层膜厚的控制", 轧钢, no. 06, 15 December 2016 (2016-12-15), pages 2 - 4 * |
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