CN110067000A - Control method and system for strip steel welding line to pass through withdrawal and straightening machine and pickling area - Google Patents
Control method and system for strip steel welding line to pass through withdrawal and straightening machine and pickling area Download PDFInfo
- Publication number
- CN110067000A CN110067000A CN201910292519.4A CN201910292519A CN110067000A CN 110067000 A CN110067000 A CN 110067000A CN 201910292519 A CN201910292519 A CN 201910292519A CN 110067000 A CN110067000 A CN 110067000A
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- China
- Prior art keywords
- strip steel
- straightening machine
- pickling
- weld joint
- setting speed
- Prior art date
- 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.)
- Pending
Links
- 238000005554 pickling Methods 0.000 title claims abstract description 65
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000003466 welding Methods 0.000 title abstract 7
- 238000001514 detection method Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000007790 scraping Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000006748 scratching Methods 0.000 description 3
- 230000002393 scratching effect Effects 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/025—Details of the apparatus, e.g. linings or sealing means
- C23G3/026—Details of the apparatus, e.g. linings or sealing means for guiding the objects
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention belongs to the technical field of pickling, and discloses a method for controlling a strip steel weld joint to pass through a tension leveler and a pickling area, which comprises the following steps: the method comprises the steps of obtaining the position of a welding seam of the strip steel, and controlling the moving speed of the strip steel in a tension leveler and an acid pickling area to be less than or equal to a first set speed when the welding seam of the strip steel is a first distance away from the front end of the tension leveler; and acquiring the position of the welding seam of the strip steel, and controlling the moving speed of the strip steel in the withdrawal and straightening machine and the pickling area to be more than or equal to a second set speed when the welding seam of the strip steel is a second distance away from the rear end of the pickling area. The control method of the strip steel welding line through the withdrawal and straightening machine and the pickling area can avoid bad cleaning of the welding line and the nearby area and scraping or strip breakage when the strip steel passes through the acid tank at a high speed, and stable and high-speed production of the pickling process is realized.
Description
Technical field
The present invention relates to pickling technical field, in particular to a kind of strip steel weld joint passes through the control of withdrawal straightening machine and pickling region
Method and system.
Background technique
In hot-strip acid cleaning process, needs to be connected together front and back is coiling welded, pass through pickling region；Meanwhile entering acid
Before washing region, need to improve pickling quality to abolish Surfaces of Hot Rolled Strip iron scale by withdrawal straightening machine.In general, hot
Rolling strip, often iron scale is more in region end to end, and front and back is welded after connecing, and is a unstable region, occurs strip often
Surface acid-washing is bad and strip steel weld joint is in the disconnected band of withdrawal straightening machine and pickling region, the problem of scratching.
Summary of the invention
The present invention provides the control method that a kind of strip steel weld joint passes through withdrawal straightening machine and pickling region, solution band in the prior art
Steel welded seam area pickling is bad, easily broken band, the technical issues of scratching.
In order to solve the above technical problems, the present invention provides the controls that a kind of strip steel weld joint passes through withdrawal straightening machine and pickling region
Method, comprising:
The position for obtaining strip steel weld joint, when the strip steel weld joint is apart from withdrawal straightening machine front end first distance, control strip exists
The movement speed in withdrawal straightening machine and pickling region is less than or equal to the first setting speed；
The position for obtaining the strip steel weld joint, when the strip steel weld joint is apart from pickling region rear end second distance, control
Movement speed of the strip in withdrawal straightening machine and pickling region is more than or equal to the second setting speed.
Further, the first distance is 5 meters.
Further, the second distance is 15 meters.
Further, first setting speed is set based on the coiling temperature of the strip.
Further, first setting speed is specifically included based on the coiling temperature setting of the strip:
In the case where coiling temperature T >=730 DEG C, first setting speed is 130m/min；
In the case where the value range of the coiling temperature T is 730 DEG C > T >=700 DEG C, first setting speed is
140m/min；
It is 700 DEG C > T >=600 DEG C in the value range of the coiling temperature T, first setting speed is 50m/min；
In the case where coiling temperature T < 600 DEG C, first setting speed is 160m/min.
Further, in the case where the coiling temperature difference that the front and back of the strip steel weld joint is rolled up, temperature is batched with higher
Degree is as the standard for judging first setting speed.
Further, second setting speed is 200~240m/min.
A kind of strip steel weld joint passes through the control system of withdrawal straightening machine and pickling region, comprising:
Weld and HAZ module, detection strip steel weld joint pass through withdrawal straightening machine front end first distance and pickling region rear end second distance
Opportunity, export the first signal and the second signal in place in place respectively；
Rate control module obtains described first and signal and controls strip in the mobile speed of withdrawal straightening machine and pickling region in place
Degree is less than or equal to the first setting speed, obtains described second and signal and controls strip in the movement of withdrawal straightening machine and pickling region in place
Speed is more than or equal to the second setting speed.
Further, the weld and HAZ module includes: weld and HAZ hole detector；
Weld and HAZ hole detector is connected with the rate control module.
Further, the first distance is 5 meters, and the second distance is 15 meters；
First setting speed is set based on the coiling temperature of the strip, is specifically included:
In the case where coiling temperature T >=730 DEG C, first setting speed is 130m/min；
In the case where the value range of the coiling temperature T is 730 DEG C > T >=700 DEG C, first setting speed is
140m/min；
It is 700 DEG C > T >=600 DEG C in the value range of the coiling temperature T, first setting speed is 50m/min；
In the case where coiling temperature T < 600 DEG C, first setting speed is 160m/min；
Second setting speed is 200~240m/min.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
The strip steel weld joint provided in the embodiment of the present application by the control method of withdrawal straightening machine and pickling region, withdrawal straightening machine with
The front and back in pickling region is detected in place, so that dynamic adjusts strip steel weld joint and passes through straightening in the normal pickling process of strip
The speed of machine and pickling region exactly reduces the movement speed of strip at this time, so that region can have before and after weld seam
Standby enough pickling times, avoid the occurrence of the bad situation of pickling；On the other hand, reduction of speed operation also can sufficiently reduce high-speed steel
Band scratches the risk of descaling bath and disconnected band.
Detailed description of the invention
Fig. 1 is the control method flow chart that strip steel weld joint provided by the invention passes through withdrawal straightening machine and pickling region.
Specific embodiment
The control method that the embodiment of the present application passes through withdrawal straightening machine and pickling region by providing a kind of strip steel weld joint solves to show
There is strip steel weld joint region pickling in technology bad, easily broken band, the technical issues of scratching.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to the application skill
The detailed description of art scheme, rather than the restriction to technical scheme, in the absence of conflict, the embodiment of the present application
And the technical characteristic in embodiment can be combined with each other.
Referring to Fig. 1, a kind of strip steel weld joint passes through the control method of withdrawal straightening machine and pickling region, comprising:
The position for obtaining strip steel weld joint, when the strip steel weld joint is apart from withdrawal straightening machine front end first distance, control strip exists
The movement speed in withdrawal straightening machine and pickling region is less than or equal to the first setting speed；
The position for obtaining the strip steel weld joint, when the strip steel weld joint is apart from pickling region rear end second distance, control
Movement speed of the strip in withdrawal straightening machine and pickling region is more than or equal to the second setting speed.
In the present embodiment, the first distance control is 5 meters, and the second distance control is 15 meters.
In general, first setting speed is set based on the coiling temperature of the strip.
It specifically includes:
In the case where coiling temperature T >=730 DEG C, first setting speed is 130m/min.
In the case where the value range of the coiling temperature T is 730 DEG C > T >=700 DEG C, first setting speed is
140m/min。
It is 700 DEG C > T >=600 DEG C in the value range of the coiling temperature T, first setting speed is 50m/min.
In the case where coiling temperature T < 600 DEG C, first setting speed is 160m/min.
It is worth noting that in the case where the coiling temperature difference that the front and back of the strip steel weld joint is rolled up, with higher volume
Take temperature as the standard for judging first setting speed.
Further, second setting speed is the conventional pickling speed of strip, in the present embodiment for 200~
240m/min。
The present embodiment is also based on the above method, provides a kind of control system.
A kind of strip steel weld joint passes through the control system of withdrawal straightening machine and pickling region, comprising: weld and HAZ module detects strip
Weld seam by opportunity of withdrawal straightening machine front end first distance and pickling region rear end second distance, export respectively first in place signal and
Second signal in place；Rate control module obtains described first and signal and controls strip in withdrawal straightening machine and pickling region in place
Movement speed is less than or equal to the first setting speed, obtains described second and signal and controls strip in withdrawal straightening machine and pickling region in place
Movement speed be more than or equal to the second setting speed.
Weld seam detection uses weld and HAZ hole detector；Weld and HAZ hole detector and the rate control module phase
Even.The rate control module pulls the controller of equipment to be connected with withdrawal straightening machine and pickling region, and realization is uniformly controlled.
Further, the first distance is 5 meters, and the second distance is 15 meters；
First setting speed is set based on the coiling temperature of the strip, is specifically included:
In the case where coiling temperature T >=730 DEG C, first setting speed is 130m/min；
In the case where the value range of the coiling temperature T is 730 DEG C > T >=700 DEG C, first setting speed is
140m/min；
It is 700 DEG C > T >=600 DEG C in the value range of the coiling temperature T, first setting speed is 50m/min；
In the case where coiling temperature T < 600 DEG C, first setting speed is 160m/min；
Second setting speed is 200~240m/min.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
The strip steel weld joint provided in the embodiment of the present application by the control method of withdrawal straightening machine and pickling region, withdrawal straightening machine with
The front and back in pickling region is detected in place, so that dynamic adjusts strip steel weld joint and passes through straightening in the normal pickling process of strip
The speed of machine and pickling region exactly reduces the movement speed of strip at this time, so that region can have before and after weld seam
Standby enough pickling times, avoid the occurrence of the bad situation of pickling；On the other hand, reduction of speed operation also can sufficiently reduce high-speed steel
Band scratches the risk of descaling bath and disconnected band.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (10)
1. the control method that a kind of strip steel weld joint passes through withdrawal straightening machine and pickling region characterized by comprising
The position for obtaining strip steel weld joint controls strip in straightening when the strip steel weld joint is apart from withdrawal straightening machine front end first distance
The movement speed in machine and pickling region is less than or equal to the first setting speed；
The position for obtaining the strip steel weld joint controls strip when the strip steel weld joint is apart from pickling region rear end second distance
Movement speed in withdrawal straightening machine and pickling region is more than or equal to the second setting speed.
2. the control method that strip steel weld joint as described in claim 1 passes through withdrawal straightening machine and pickling region, it is characterised in that: described
First distance is 5 meters.
3. the control method that strip steel weld joint as described in claim 1 passes through withdrawal straightening machine and pickling region, it is characterised in that: described
Second distance is 15 meters.
4. the control method that strip steel weld joint as described in claim 1 passes through withdrawal straightening machine and pickling region, it is characterised in that: described
First setting speed is set based on the coiling temperature of the strip.
5. the control method that strip steel weld joint as claimed in claim 4 passes through withdrawal straightening machine and pickling region, which is characterized in that described
First setting speed is specifically included based on the coiling temperature setting of the strip:
In the case where coiling temperature T >=730 DEG C, first setting speed is 130m/min；
In the case where the value range of the coiling temperature T is 730 DEG C > T >=700 DEG C, first setting speed is 140m/
min；
It is 700 DEG C > T >=600 DEG C in the value range of the coiling temperature T, first setting speed is 50m/min；
In the case where coiling temperature T < 600 DEG C, first setting speed is 160m/min.
6. the control method that strip steel weld joint as described in claim 1 passes through withdrawal straightening machine and pickling region, it is characterised in that: in institute
State the front and back volume of strip steel weld joint coiling temperature it is different in the case where, using higher coiling temperature as judging that described first sets
The standard of speed.
7. the control method that strip steel weld joint as described in claim 1 passes through withdrawal straightening machine and pickling region, it is characterised in that: described
Second setting speed is 200~240m/min.
8. the control system that a kind of strip steel weld joint passes through withdrawal straightening machine and pickling region characterized by comprising
Weld and HAZ module, detection strip steel weld joint by withdrawal straightening machine front end first distance and pickling region rear end second distance when
Machine exports the first signal and the second signal in place in place respectively；
Rate control module obtains the described first signal and to control movement speed of the strip in withdrawal straightening machine and pickling region small in place
In being equal to the first setting speed, obtains described second and signal and control strip in the movement speed of withdrawal straightening machine and pickling region in place
More than or equal to the second setting speed.
9. the control system that strip steel weld joint as claimed in claim 8 passes through withdrawal straightening machine and pickling region, which is characterized in that described
Weld and HAZ module includes: weld and HAZ hole detector；
Weld and HAZ hole detector is connected with the rate control module.
10. the control system that strip steel weld joint as claimed in claim 8 passes through withdrawal straightening machine and pickling region, it is characterised in that:
The first distance is 5 meters, and the second distance is 15 meters；
First setting speed is set based on the coiling temperature of the strip, is specifically included:
In the case where coiling temperature T >=730 DEG C, first setting speed is 130m/min；
In the case where the value range of the coiling temperature T is 730 DEG C > T >=700 DEG C, first setting speed is 140m/
min；
It is 700 DEG C > T >=600 DEG C in the value range of the coiling temperature T, first setting speed is 50m/min；
In the case where coiling temperature T < 600 DEG C, first setting speed is 160m/min；
Second setting speed is 200~240m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910292519.4A CN110067000A (en) | 2019-04-12 | 2019-04-12 | Control method and system for strip steel welding line to pass through withdrawal and straightening machine and pickling area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910292519.4A CN110067000A (en) | 2019-04-12 | 2019-04-12 | Control method and system for strip steel welding line to pass through withdrawal and straightening machine and pickling area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110067000A true CN110067000A (en) | 2019-07-30 |
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ID=67367585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910292519.4A Pending CN110067000A (en) | 2019-04-12 | 2019-04-12 | Control method and system for strip steel welding line to pass through withdrawal and straightening machine and pickling area |
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| Country | Link |
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| CN (1) | CN110067000A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586691A (en) * | 2019-09-09 | 2019-12-20 | 新余钢铁股份有限公司 | Control method for passing welding line of silicon steel strip through withdrawal and straightening machine |
| CN111015108A (en) * | 2019-12-19 | 2020-04-17 | 北京首钢股份有限公司 | Method for controlling surface defects of pickled plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101332469A (en) * | 2007-06-28 | 2008-12-31 | 上海宝信软件股份有限公司 | Tension leveler control method |
| CN104762633A (en) * | 2015-03-13 | 2015-07-08 | 邯钢集团邯宝钢铁有限公司 | Automatic speed increasing/decreasing control method of plate strip weld joint during entrance into acid tank for acid pickling |
| CN106424170A (en) * | 2016-09-28 | 2017-02-22 | 邯钢集团邯宝钢铁有限公司 | Pickling line tandem cold mill withdrawal and straightening machine control method |
-
2019
- 2019-04-12 CN CN201910292519.4A patent/CN110067000A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101332469A (en) * | 2007-06-28 | 2008-12-31 | 上海宝信软件股份有限公司 | Tension leveler control method |
| CN104762633A (en) * | 2015-03-13 | 2015-07-08 | 邯钢集团邯宝钢铁有限公司 | Automatic speed increasing/decreasing control method of plate strip weld joint during entrance into acid tank for acid pickling |
| CN106424170A (en) * | 2016-09-28 | 2017-02-22 | 邯钢集团邯宝钢铁有限公司 | Pickling line tandem cold mill withdrawal and straightening machine control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586691A (en) * | 2019-09-09 | 2019-12-20 | 新余钢铁股份有限公司 | Control method for passing welding line of silicon steel strip through withdrawal and straightening machine |
| CN111015108A (en) * | 2019-12-19 | 2020-04-17 | 北京首钢股份有限公司 | Method for controlling surface defects of pickled plate |
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Application publication date: 20190730 |