CN112246871A - Method and device for passing weld joint of temper mill - Google Patents
Method and device for passing weld joint of temper mill Download PDFInfo
- Publication number
- CN112246871A CN112246871A CN202011055864.5A CN202011055864A CN112246871A CN 112246871 A CN112246871 A CN 112246871A CN 202011055864 A CN202011055864 A CN 202011055864A CN 112246871 A CN112246871 A CN 112246871A
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- CN
- China
- Prior art keywords
- strip steel
- roller
- temper mill
- rolling
- rolling force
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 238000003466 welding Methods 0.000 claims abstract description 24
- 230000000087 stabilizing effect Effects 0.000 claims description 14
- 238000009966 trimming Methods 0.000 claims 3
- 238000000137 annealing Methods 0.000 description 4
- 239000005028 tinplate Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0071—Levelling the rolled product
Abstract
The invention provides a method and a device for passing a welding seam of a temper mill, wherein the method comprises the following steps: 1) determining the position of a welding seam of the strip steel and the tension of the strip steel before and after entering the temper mill, and sending a distance parameter and a tension parameter of the welding seam from the rolling position of the temper mill to a controller; 2) the controller compares the distance parameter with a set value of the distance required by the welding seam from the rolling position of the flattening machine when the rolling force is adjusted in the flattening machine; 3) when the distance parameter is larger than a set value, the rolling force of the temper mill is adjusted to be the rolling force of the strip steel; when the distance parameter is less than or equal to a set value, the rolling force of the temper mill is adjusted to be the slight opening rolling force of the strip steel; the tension parameters are used for assisting in adjusting the rolling force of the temper mill. The invention controls the rolling force of the strip steel to change adaptively by observing the distance between the welding seam and the rolling position of the strip steel, and detects the tension of the strip steel before and after entering the temper mill by the tension meter roller to assist in adjusting the rolling force of the strip steel.
Description
Technical Field
The invention relates to the technical field of strip steel rolling.
Background
In the technical field of steel smelting, the leveling procedure of a continuous annealing unit is a rolling process with small deformation rate for a cold-rolled strip steel subjected to recrystallization annealing.
The existing tin plate continuous annealing unit has 2 welding seam passing modes: the method comprises the following steps of (1) completely opening a welding seam, wherein the time is long and is about 2 minutes to 40 seconds; secondly, the problem of surface quality exists when the welding seam is crossed by small rolling force, and the welding seam cannot be used for a long time. The two modes can not meet the requirement of the tin plate continuous annealing unit for speed-up production.
Disclosure of Invention
In order to solve the problems, the invention provides a method and a device for passing a welding seam of a temper mill, which are used for controlling the rolling force of strip steel to change adaptively by observing the distance between the welding seam and the rolling position of the strip steel.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a method of over-welding a bead on a temper mill, comprising the steps of:
1) determining the position of a welding seam of the strip steel and the tension of the strip steel before and after entering the temper mill, and sending a distance parameter and a tension parameter of the welding seam from the rolling position of the temper mill to a controller;
2) the controller compares the distance parameter with a set value of the distance required by the welding seam from the rolling position of the flattening machine when the rolling force is adjusted in the flattening machine;
3) when the distance parameter is larger than a set value, the rolling force of the temper mill is adjusted to be the rolling force of the strip steel; when the distance parameter is less than or equal to a set value, the rolling force of the temper mill is adjusted to be the slight opening rolling force of the strip steel; the tension parameters are used for assisting in adjusting the rolling force of the temper mill.
Further, the rolling force of the strip steel is 550-700KN, and the slight opening rolling force of the strip steel is 350-450 KN.
Further, in the step 3), the roll gap of the working roll and the position of the crease-resistant roll are adjusted through a controller so as to adjust the rolling force of the temper mill.
An apparatus for a leveler passing weld comprising: the device comprises a housing, and a working roll and a crease-resistant roll which are arranged in the housing, wherein the working roll comprises an upper working roll and a lower working roll which are arranged in the center of the housing, and the upper working roll and the lower working roll are vertically and symmetrically arranged relative to the rolling position of a temper mill; the crease-resistance roller includes preceding crease-resistance roller and back crease-resistance roller, the temper mill rolling position front side is located to preceding crease-resistance roller, drives the swing in order to adjust belted steel rolling front surface tension by preceding crease-resistance roller pneumatic cylinder, temper mill rolling position rear side is located to back crease-resistance roller, drives the swing in order to adjust rolling back belted steel surface tension by back crease-resistance roller pneumatic cylinder.
Furthermore, a front tensiometer roller is arranged at a strip steel inlet of the housing, and a rear tensiometer roller is arranged at a strip steel outlet of the housing.
Furthermore, a first stabilizing roller is arranged between the front tensiometer roller and a strip steel inlet of the housing, and a second stabilizing roller is arranged between the rear tensiometer roller and a strip steel outlet of the housing.
Furthermore, the front tensiometer roller, the first stabilizing roller, the rear tensiometer roller and the second stabilizing roller are all installed on the cross beams on the two sides of the housing through bearing seats.
Compared with the prior art, the invention has the beneficial effects that:
according to the method and the device for the pass-welding seam of the temper mill, the distance between the weld seam and the rolling position of the strip steel is observed to control the rolling force of the strip steel to change adaptively, and further, the tension of the strip steel before and after entering the temper mill can be detected through the tension meter roller to assist in adjusting the rolling force of the strip steel, so that the time for the pass-welding seam of the temper mill to be opened is shortened, and meanwhile, the quality problem is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a device for passing a weld of a temper mill according to an embodiment of the invention;
in the figure: 1. a memorial archway; 2. an upper work roll; 3. a lower working roll; 4. a front crease-resist roller; 5. a rear crease-resist roller; 6. a front crease-resist roller hydraulic cylinder; 7. a rear crease-resist roller hydraulic cylinder; 8. a front tensiometer roller; 9. a post-tension meter roll; 10. a first stabilizing roller; 11. a second stabilizing roller; 12. a cross member.
Detailed Description
The following description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.
The embodiment of the invention provides a method for passing a welding seam of a temper mill, which comprises the following steps of:
1) determining the position of a welding seam of the strip steel and the tension of the strip steel before and after entering the temper mill, and sending a distance parameter and a tension parameter of the welding seam from the rolling position of the temper mill to a controller;
2) the controller compares the distance parameter with a set value of the distance required by the welding seam from the rolling position of the flattening machine when the rolling force is adjusted in the flattening machine;
3) when the distance parameter is larger than a set value, the rolling force of the temper mill is adjusted to be the rolling force of the strip steel; when the distance parameter is less than or equal to a set value, the rolling force of the temper mill is adjusted to be the slight opening rolling force of the strip steel; the tension parameters are used for assisting in adjusting the rolling force of the temper mill.
In this embodiment, the rolling force of the strip steel is 550-700KN, and the slight opening rolling force of the strip steel is 350-450 KN.
In this embodiment, in the step 3), the roll gap of the working roll and the position of the crease-resistant roll are adjusted by the controller to adjust the rolling force of the temper mill.
In an embodiment of the present invention, there is provided a device for passing a weld of a leveling machine, as shown in fig. 1, including: the automatic leveling machine comprises a housing window 1, and a working roll and a crease-resistant roll which are arranged in the housing window 1, wherein the working roll comprises an upper working roll 2 and a lower working roll 3 which are arranged at the center of the housing window 1, and the upper working roll 2 and the lower working roll 3 are arranged in an up-and-down symmetrical mode about the rolling position of the leveling machine; the crease-resist roll includes preceding crease-resist roll 4 and back crease-resist roll 5, the rolling position front side of levelling machine is located to preceding crease-resist roll 4, drives the swing in order to adjust belted steel rolling front surface tension by 4 pneumatic cylinders of preceding crease-resist roll, the rolling position rear side of levelling machine is located to back crease-resist roll 5, drives the swing in order to adjust rolling back belted steel surface tension by 5 pneumatic cylinders of back crease-resist roll.
In the embodiment, a front tensiometer roller 8 is arranged at a strip steel inlet of the housing 1, and a rear tensiometer roller 9 is arranged at a strip steel outlet of the housing.
In this embodiment, a first stabilizing roller 10 is arranged between the front tensiometer roller 8 and the strip steel inlet of the housing, and a second stabilizing roller 11 is arranged between the rear tensiometer roller 9 and the strip steel inlet of the housing.
In this embodiment, the front tensiometer roller 8, the first stabilizing roller 9, the rear tensiometer roller 10 and the second stabilizing roller 11 are all mounted on the beams 12 on the two sides of the housing 1 through bearing seats.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (7)
1. A method of passing a weld of a temper mill, comprising the steps of:
1) determining the position of a welding seam of the strip steel and the tension of the strip steel before and after entering the temper mill, and sending a distance parameter and a tension parameter of the welding seam from the rolling position of the temper mill to a controller;
2) the controller compares the distance parameter with a set value of the distance required by the welding seam from the rolling position of the flattening machine when the rolling force is adjusted in the flattening machine;
3) when the distance parameter is larger than a set value, the rolling force of the temper mill is adjusted to be the rolling force of the strip steel; when the distance parameter is less than or equal to a set value, the rolling force of the temper mill is adjusted to be the slight opening rolling force of the strip steel; the tension parameters are used for assisting in adjusting the rolling force of the temper mill.
2. The method of claim 1, further comprising: the rolling force of the strip steel is 550-700KN, and the slight opening rolling force of the strip steel is 350-450 KN.
3. The method of claim 1, further comprising: and in the step 3), the roll gap of the working roll and the position of the crease-resistant roll are adjusted through a controller so as to adjust the rolling force of the temper mill.
4. A temper mill weld passing apparatus, comprising: the device comprises a housing, and a working roll and a crease-resistant roll which are arranged in the housing, wherein the working roll comprises an upper working roll and a lower working roll which are arranged in the center of the housing, and the upper working roll and the lower working roll are vertically and symmetrically arranged relative to the rolling position of a temper mill; the crease-resistance roller includes preceding crease-resistance roller and back crease-resistance roller, the temper mill rolling position front side is located to preceding crease-resistance roller, drives the swing in order to adjust belted steel rolling front surface tension by preceding crease-resistance roller pneumatic cylinder, temper mill rolling position rear side is located to back crease-resistance roller, drives the swing in order to adjust rolling back belted steel surface tension by back crease-resistance roller pneumatic cylinder.
5. The trimming machine weld passing apparatus according to claim 4, wherein: the strip steel inlet of the housing is provided with a front tension meter roller, and the strip steel outlet of the housing is provided with a rear tension meter roller.
6. The trimming machine weld passing apparatus according to claim 5, wherein: a first stabilizing roller is arranged between the front tensiometer roller and a strip steel inlet of the housing, and a second stabilizing roller is arranged between the rear tensiometer roller and a strip steel outlet of the housing.
7. The trimming machine weld passing apparatus according to claim 6, wherein: the front tensiometer roller, the first stabilizing roller, the rear tensiometer roller and the second stabilizing roller are all installed on the cross beams on two sides of the housing through bearing seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055864.5A CN112246871A (en) | 2020-09-30 | 2020-09-30 | Method and device for passing weld joint of temper mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055864.5A CN112246871A (en) | 2020-09-30 | 2020-09-30 | Method and device for passing weld joint of temper mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112246871A true CN112246871A (en) | 2021-01-22 |
Family
ID=74233434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011055864.5A Pending CN112246871A (en) | 2020-09-30 | 2020-09-30 | Method and device for passing weld joint of temper mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112246871A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101658869A (en) * | 2008-08-25 | 2010-03-03 | 鞍钢股份有限公司 | Technique for continuously and flatly rolling welding seams of cold-rolled sheets |
| CN110653267A (en) * | 2018-06-29 | 2020-01-07 | 宝山钢铁股份有限公司 | Control method for micro-opening welding seam of hot galvanizing unit leveling equipment |
| CN110893418A (en) * | 2018-09-13 | 2020-03-20 | 上海宝信软件股份有限公司 | Control method for passing welding seam of temper mill |
-
2020
- 2020-09-30 CN CN202011055864.5A patent/CN112246871A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101658869A (en) * | 2008-08-25 | 2010-03-03 | 鞍钢股份有限公司 | Technique for continuously and flatly rolling welding seams of cold-rolled sheets |
| CN110653267A (en) * | 2018-06-29 | 2020-01-07 | 宝山钢铁股份有限公司 | Control method for micro-opening welding seam of hot galvanizing unit leveling equipment |
| CN110893418A (en) * | 2018-09-13 | 2020-03-20 | 上海宝信软件股份有限公司 | Control method for passing welding seam of temper mill |
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| PB01 | Publication | ||
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Application publication date: 20210122 |