CN112337985A - Production method of hot-rolled pickled plate without yellowing on surface - Google Patents
Production method of hot-rolled pickled plate without yellowing on surface Download PDFInfo
- Publication number
- CN112337985A CN112337985A CN202011094100.7A CN202011094100A CN112337985A CN 112337985 A CN112337985 A CN 112337985A CN 202011094100 A CN202011094100 A CN 202011094100A CN 112337985 A CN112337985 A CN 112337985A
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- Prior art keywords
- yellowing
- withdrawal
- pickling
- hot
- straightening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- 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
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- 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
-
- 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
- C23G3/024—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by a combination of dipping and spraying
-
- 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
-
- 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
- C23G3/027—Associated apparatus, e.g. for pretreating or after-treating
- C23G3/028—Associated apparatus, e.g. for pretreating or after-treating for thermal or mechanical pretreatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a production method of a hot-rolled pickled plate without yellowing on the surface, and relates to the technical field of strip steel pickling. The production method of the hot-rolled pickled plate without yellowing surface comprises an acid pickling process and a withdrawal and straightening treatment, wherein a withdrawal and straightening machine in the withdrawal and straightening treatment is in a full-process withdrawal and straightening mode, and an inhibitor and a passivator are added in the acid pickling process. The production method of the hot-rolled pickled plate without yellowing on the surface changes the normal production process of a withdrawal and straightening machine into a whole withdrawal and straightening mode, and avoids yellowing and blackening of the plate surface caused by the withdrawal and straightening of the head and the tail; the pickling speed is stabilized, and yellowing caused by over-pickling or under-pickling is prevented; the inhibitor is added to improve the whiteness of the surface of the strip steel and reduce yellowing; and the new nozzle model is adopted to keep stable cleaning.
Description
Technical Field
The invention relates to the technical field of strip steel pickling, in particular to a production method of a hot-rolled pickled plate without yellowing on the surface.
Background
Along with the adjustment of the yield and the yield of the pickling line and the product structure, the surface quality requirement of the pickled plate on the market is gradually improved, and the requirement of customers on the surface quality of the pickled plate is higher and higher. The closing rate of the pickling line is averagely 10.4 percent due to the yellowing of the surface of the plate, which seriously influences the product exchange of the line.
At present, no patent is reported about a hot-rolled pickled plate without surface yellowing and a production method. The invention produces the hot-rolled pickled plate with good surface quality and no yellowing defect by the selection of the rinsing tank nozzle and the optimization of the pickling process.
Therefore, the applicant inherits the experience of abundant design development and actual manufacturing of related industries for many years, researches and improves the existing structure and deficiency, and provides a production method of a hot-rolled pickled plate without yellowing on the surface, so as to achieve the aim of higher practical value.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a production method of a hot-rolled pickled plate without yellowing on the surface, which solves the problem of higher sealing rate of yellowing of the plate surface of the existing pickling machine.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the production method of the hot-rolled pickled plate without yellowing on the surface comprises an acid pickling process and a pulling and straightening treatment, wherein a pulling and straightening machine in the pulling and straightening treatment is in a whole-course pulling and straightening mode, an inhibitor and a passivator are added in the acid pickling process, and the spray angle of a rinsing tank nozzle relative to the surface of strip steel is 15 degrees in the acid pickling process.
Preferably, the pickling speed is 60-160 m/min.
Preferably, the inhibitor is IB 45.
Preferably, the concentration of the inhibitor is 1/1000.
Preferably, the spray opening angle of the rinse tank nozzle is a, the distance between the spray nozzles and the surface of the strip steel is h, and the distance between the spray nozzles is b, so that the relationship among the spray opening angle of the rinse tank nozzle, the distance between the spray nozzles and the surface of the strip steel and the distance between the spray nozzles is
(III) advantageous effects
The invention provides a production method of a hot-rolled pickled plate without yellowing on the surface. The method has the following beneficial effects:
the production method of the hot-rolled pickled plate without yellowing on the surface changes the normal production process of a withdrawal and straightening machine into a whole withdrawal and straightening mode, and avoids yellowing and blackening of the plate surface caused by the withdrawal and straightening of the head and the tail; the pickling speed is stabilized, and yellowing caused by over-pickling or under-pickling is prevented; the inhibitor is added to improve the whiteness of the surface of the strip steel and reduce yellowing; and the new nozzle model is adopted to keep stable cleaning.
The pickling board produced by the method has the advantages that the board surface yellowing sealing rate is greatly reduced, and 14551.92 tons of co-produced pickling board are calculated since measures are implemented in 1 month in 2020, wherein the board surface yellowing rate is judged to be 34.75 tons (caused by shutdown maintenance in each month, which is unavoidable), accounts for 0.24%, and is obviously improved compared with the previous pickling board (10.4%).
| Month (2020 year) | Capacity (ton) | Yellowing amount (ton) | Ratio of occupation of |
| 1 month | 1755.65 | 5.01 | 0.29％ |
| 2 month | 1802.84 | 8.86 | 0.49％ |
| 3 month | 3347.07 | 3.14 | 0.09％ |
| 4 month | 2149.68 | 5.46 | 0.25％ |
| Month 5 | 3541.28 | 5.45 | 0.15％ |
| 6 month | 1955.4 | 6.83 | 0.35％ |
| Total of | 14551.92 | 34.75 | 0.24％ |
Drawings
FIG. 1 shows a nozzle configuration of a comparative example;
FIG. 2 shows an example nozzle configuration.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a method for producing a hot-rolled pickled plate without yellowing on the surface.
(1) The normal production process of the withdrawal and straightening machine is changed into a whole withdrawal and straightening mode, so that the plate surface is prevented from yellowing and blackening due to the fact that the head and the tail are not withdrawn and straightened.
When the strip steel welding seam is set in the secondary system to pass through the tension leveler, the tension leveler is normally used, and manual intervention is reduced. The iron scales at the head and the tail of the strip steel are removed as much as possible, and better surface quality is easily formed in the pickling process.
(2) The pickling speed is stabilized (the pickling speed is 60-160 mpm), and yellowing caused by over-pickling or under-pickling is prevented.
And (3) aiming at the problems that the plate surface is yellow due to the speed reduction of acid pickling caused by repeated re-welding and edge blocking of a welding machine, and the like, and the accident generation reason is analyzed in organization, preventive and improvement measures are made. And for plate surface yellowing caused by speed reduction during roller drawing without stopping, organizing roller drawing skill training and optimizing the pickling speed during roller drawing.
(3) Upgrading and modifying the pickling process, and introducing an inhibitor and a passivator.
The inhibitor (type: IB45, concentration is one thousandth) is added to improve the surface whiteness of the strip steel and reduce yellowing. In addition, the iron loss and acid consumption indexes of the pickling are reduced by a certain proportion.
(4) The type of the rinsing tank nozzle is selected, and the spraying angle and the spraying state are corrected one by one.
In the production process, the surface rinsing effect of the strip steel is poor and the surface of the strip steel is yellow due to the reasons of plate shape change, nozzle blockage and falling off and the like. The nozzle angle was corrected (kept at 15 ° relative to the strip plane) to ensure that no interference occurred during the rinsing water spray.
TABLE 1 Main Process parameters of the examples
| Numbering | Number plate | The whole course of the withdrawal and straightening machine is used | Pickling speed (m/min) | Application of inhibitor and passivator |
| Example 1 | M510L | Y | 100 | Y |
| Example 2 | M510L | Y | 110 | Y |
| Example 3 | M510L | Y | 113 | Y |
| Comparative example 1 | M510L | N | 45 | N |
| Comparative example 2 | M510L | N | 50 | N |
Remarking: y is used, and N is not used.
In conclusion, the production method of the hot-rolled pickled plate without yellowing on the surface changes the normal production process of the withdrawal and straightening machine into a full-process withdrawal and straightening mode, and avoids yellowing and blackening of the plate surface caused by non-withdrawal and straightening of the head and the tail; the pickling speed is stabilized, and yellowing caused by over-pickling or under-pickling is prevented; the inhibitor is added to improve the whiteness of the surface of the strip steel and reduce yellowing; and the new nozzle model is adopted to keep stable cleaning.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A production method of a hot-rolled pickled plate without yellowing on the surface comprises the pickling process and the straightening and withdrawal treatment, and is characterized in that: the withdrawal and straightening machine in withdrawal and straightening treatment is in a full-process withdrawal and straightening mode, an inhibitor and a passivator are added in the pickling process, and the spray angle of a rinsing tank nozzle relative to the surface of the strip steel in the pickling process is 15 degrees.
2. The method for producing a hot-rolled pickled plate having no yellowing on the surface according to claim 1, comprising the steps of: the pickling speed is 60-160 m/min.
3. The method for producing a hot-rolled pickled plate having no yellowing on the surface according to claim 2, comprising the steps of: the inhibitor is IB 45.
4. The method for producing a hot-rolled pickled plate having no yellowing on the surface as claimed in claim 3, wherein: the concentration of the inhibitor was 1/1000.
5. The method for producing a hot-rolled pickled plate having no yellowing on the surface according to claim 1, comprising the steps of: the spray opening angle of the rinse tank nozzle is a, the distance between the spray nozzle and the surface of the strip steel is h, and the distance between the spray nozzles is b, so that the relationship among the spray opening angle of the rinse tank nozzle, the distance between the spray nozzle and the surface of the strip steel and the distance between the spray nozzles is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094100.7A CN112337985B (en) | 2020-10-14 | 2020-10-14 | Production method of hot-rolled pickled plate without yellowing on surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094100.7A CN112337985B (en) | 2020-10-14 | 2020-10-14 | Production method of hot-rolled pickled plate without yellowing on surface |
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| Publication Number | Publication Date |
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| CN112337985A true CN112337985A (en) | 2021-02-09 |
| CN112337985B CN112337985B (en) | 2022-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113278887A (en) * | 2021-05-14 | 2021-08-20 | 马鞍山钢铁股份有限公司 | 600 MPa-grade high-surface-quality acid-pickling dual-phase steel and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004060825A1 (en) * | 2004-12-17 | 2006-06-29 | Sms Demag Ag | Method and device for descaling surfaces |
| CN202667285U (en) * | 2012-06-15 | 2013-01-16 | 鞍钢股份有限公司 | Device for ensuring stable process of rinsing section |
| CN106319540A (en) * | 2015-06-30 | 2017-01-11 | 宝钢不锈钢有限公司 | Turbulence pickling control method for stainless steel |
| CN106319551A (en) * | 2016-11-11 | 2017-01-11 | 攀钢集团攀枝花钢钒有限公司 | Device and method for preventing yellow spot defect of titanium strip due to continuous acid-washing |
| CN209407089U (en) * | 2018-12-21 | 2019-09-20 | 浙江协和陶瓷有限公司 | A kind of acid washing rolled steel pretreating device |
| CN110592601A (en) * | 2019-09-30 | 2019-12-20 | 马鞍山钢铁股份有限公司 | Pickling process of hot rolled steel |
| CN111719160A (en) * | 2020-05-17 | 2020-09-29 | 浙江明贺钢管有限公司 | Preparation method of pickling solution for ferritic stainless steel pipe |
-
2020
- 2020-10-14 CN CN202011094100.7A patent/CN112337985B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004060825A1 (en) * | 2004-12-17 | 2006-06-29 | Sms Demag Ag | Method and device for descaling surfaces |
| CN202667285U (en) * | 2012-06-15 | 2013-01-16 | 鞍钢股份有限公司 | Device for ensuring stable process of rinsing section |
| CN106319540A (en) * | 2015-06-30 | 2017-01-11 | 宝钢不锈钢有限公司 | Turbulence pickling control method for stainless steel |
| CN106319551A (en) * | 2016-11-11 | 2017-01-11 | 攀钢集团攀枝花钢钒有限公司 | Device and method for preventing yellow spot defect of titanium strip due to continuous acid-washing |
| CN209407089U (en) * | 2018-12-21 | 2019-09-20 | 浙江协和陶瓷有限公司 | A kind of acid washing rolled steel pretreating device |
| CN110592601A (en) * | 2019-09-30 | 2019-12-20 | 马鞍山钢铁股份有限公司 | Pickling process of hot rolled steel |
| CN111719160A (en) * | 2020-05-17 | 2020-09-29 | 浙江明贺钢管有限公司 | Preparation method of pickling solution for ferritic stainless steel pipe |
Non-Patent Citations (1)
| Title |
|---|
| 梁凤凯等: "《化工生产技术》", 31 August 2008, 天津大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113278887A (en) * | 2021-05-14 | 2021-08-20 | 马鞍山钢铁股份有限公司 | 600 MPa-grade high-surface-quality acid-pickling dual-phase steel and manufacturing method thereof |
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| CN112337985B (en) | 2022-07-26 |
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