CN1401015A - Method and device for pickling rolled metal, in particular steel strip - Google Patents

Method and device for pickling rolled metal, in particular steel strip Download PDF

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Publication number
CN1401015A
CN1401015A CN01805176A CN01805176A CN1401015A CN 1401015 A CN1401015 A CN 1401015A CN 01805176 A CN01805176 A CN 01805176A CN 01805176 A CN01805176 A CN 01805176A CN 1401015 A CN1401015 A CN 1401015A
Authority
CN
China
Prior art keywords
pickling
observed value
strip
roll coil
computation model
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
Application number
CN01805176A
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Chinese (zh)
Inventor
R·宾藤
R·布里斯贝尔格
B·布洛克
J·塞德尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE10062869A external-priority patent/DE10062869A1/en
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of CN1401015A publication Critical patent/CN1401015A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00Apparatus for cleaning or pickling metallic material
    • C23G3/02Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/027Associated apparatus, e.g. for pretreating or after-treating
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08Iron or steel

Abstract

In a method and device for pickling a rolled metal, in particular, steel strip, the metal strip (1) is fed to a regulated pickling process. In order to carry out the pickling process not only on the basis of conventional pickling parameters but rather taking into consideration additional parameters from outside of the pickling vat, it is proposed to regulate the pickling process, in addition to the pickling medium parameters, by parameters of the coil (2) and/or metal strip determined and/or measured before the metal strip (1) enters the pickling section (3).

Description

The acid washing method of metal band rolling and especially steel band and equipment
Technical field
The present invention relates to the acid washing method and the equipment of metal band rolling and especially steel band, described metal strip is supplied to an acid cleaning process of being adjusted.
Background technology
From DE19743022A1, known a kind of metal strip acid washing method, it is based on measuring behind pickling installation on the travel direction, and in the method, the defect type of grasping according to surveying instrument is regulated acid content, metal content and especially iron level and band parameter such as material and the geometrical dimension in pickling parameter such as pickle solution temperature, metal strip translational speed, the pickle solution.With regard to this method, can only determine defective afterwards and infer favourable pickle solution.Therefore, adjust distance and only control pickling installation itself.
Another known method (EP0482725A1) is with scroll fluid work, and described scroll fluid results from the pickling container.Like this, people try hard to the pickling medium consumption and obtain best pickling result minimumly.Can so realize this result, promptly adjust eddy current in the pickling medium according to the translational speed of wanting the pickling band.Can not expect to obtain very effective result.
From EP0602437B1, known the method for another kind pickling rolled strip in pickling installation.This method is based on a particular job mode of the continuous pickling tank that is provided with in a plurality of front and back.In pickling tank, by at least ribbon motion planar next door, above or below the nozzle that is arranged on the pickling tank spray acidiferous pickling medium, wherein can control nozzle and with the amount injection pickling medium of preliminary election arbitrarily with changing.Here, can the preliminary election acid concentration and/or the jet exit speed of medium temperature and/or pickling medium.
Summary of the invention
Task of the present invention is not only will carry out acid cleaning process according to common pickling parameter, and will consider other parameter that pickling tank is outer.
According to the present invention, so finish being proposed of task, promptly except that the pickling parameter, also adjust this acid cleaning process according to the roll coil of strip of before this metal strip enters pickling portion, having determined and/or having measured and/or the parameter of metal strip.Its advantage is, sets up the pickling parameter in advance, thereby avoided underpickling or over-cleaning, suitably regulates acid concentration and for the acid amount and use pickling medium thus economically, can go out suitable temperature with other pickling parameter the preceding calculated in advance together.In addition, can consider by pre-descaling device after the casting, oxide skin and other coating removed after thermal distortion and the cooling.Therefore, the present invention has also considered, oxide skin is broken in (by the straightening device), wherein cracks and hole in the oxidation cortex, and they have increased acidleach profit surface.Concerning remove descaling by abrasion or fluid power mode, can reduce will be in acid cleaning process dissolved oxide skin amount, thereby can shorten the pickling time according to pre-de-scaling type.When improving the metal strip temperature before entering pickling tank, under the pickling temperature of the best, prolonged the duration of contact of strip surface and pickling medium.The heating distance of metal strip is shortened and the pickling time has shortened.If remove descaling and dwindle the dissolved oxide skin amount of wanting before it enters pickling tank by the laser optics mode, then the oxide skin pickling time also shortens.
In addition, method is used this method in such a manner, promptly one sets up computation model and comes the pre-setting acid cleaning process with roll coil of strip observed value and adjust according to an adjustment computation model of having considered the observed value of oxide skin, liquid pool temperature, pickling medium temperature and/or acid concentration at least.For example, need not resemble again done at present estimate the oxide skin amount.The combination of an additional oxide skin computation model has appearred.Optimized target component like this can be: minimum energy consumption, and diversified volume group, to the more rapid reaction of surperficial impurity level and type, pickle solution consumption and loss on acid washing minimum suppress over-pickling and underpickling.In adjustable pre-de-scaling unit, can determine thickness, shape, distribution and the color of oxide skin by the oxide skin measuring apparatus.For this reason, adopt accurate computation model.
In design of the present invention, stipulated, adjusted or the topworks of the pickler of resetting according to the oxidation cortex value of before pickling portion, measuring.So, realized the adjustment of pickling portion transit time the shortlyest.
Specifically make such regulation, i.e. observed value outside a zone measurement be arranged in pickling portion on direction of motion before descales layer or coating and these observed values are used to reset topworks and/or the balancing side value or the calculated value of pickling portion.
So considered other parameter outside pickling portion, promptly adjusted the pickling time according to the band input information and the equipment adjustment situation of the roll coil of strip.
Another flexible program stipulated, the observed value of being grasped relevant with coating or oxide skin is used to adjust a pretreatment unit before being connected on pickling portion.Thus one, can adjust the parameter of pickling medium according to pretreatment unit more accurately.
In addition, also be favourable with reset the evenly topworks of this pretreatment unit and pickling portion of observed value or calculated value.
The pickling installation of metal band rolling and especially steel band is so finished being proposed of task, wherein said metal strip is being handled on the direction and can is being supplied to a pickler and draft the adjustment of a plurality of parameters for this pickler from a roll coil of strip, and promptly observed value can be set up the executive device that computation model and adjustment computation model are transformed into pickling portion through one from the roll coil of strip or roll coil of strip metrical information receptor.So, can regulate and drive the work of pickling portion more economical and more accurately, this has brought above-mentioned advantage.
Proposed in the design of equipment, roll coil of strip observed value receptor can be adjusted the observed value input in the computation model.Architecture computer has utilized general metal strip input information here.In addition, can go out the oxidation cortex by accounting equation and according to Model Calculation, so that the topworks slowly and fast of the preset or the pickling portion of resetting evenly.
Be that has stipulated other application scenario, an observed value receptor and relevant observed value can be used to the to reset topworks of pickling portion with coating or oxide skin.
Stipulated according to further feature, a pretreatment unit is set in the front of pickling portion, its observed value can be transfused to be adjusted in the computation model.Recognizing the suitable analysis of also passing through under the situation of necessity roll coil of strip information and instantaneous equipment adjustment situation, pretreatment unit can have influence on the pickling time.Pretreatment unit can be a preheating unit, a mechanical type, an abrasion formula, a hydraulic type, a laser optics formula or a scale breaker that utilizes the oscillation technology device.
So obtain another improvement project, promptly between pretreatment unit and pickling portion, inserted an induction heater that is used for band.Insert the induction heater of metal strip and it is used for adjusting apace the metal strip temperature and sets up the metal strip pickling temperature in pickling portion.
Description of drawings
Accompanying drawing is schematically represented embodiments of the invention and following it is elaborated.
Fig. 1 is the frame circuit diagram according to the roll coil of strip pickling installation that has adjustment mechanism of scheme of foundation design.
Fig. 2 is according to first flexible program and frame circuit diagram that have the observed value receptor.
Fig. 3 is according to second flexible program and frame circuit diagram that have a pretreatment unit.
Fig. 4 is according to the 3rd flexible program and frame circuit diagram that have observed value receptor and pretreatment unit.
Fig. 5 is according to the 4th flexible program and frame circuit diagram that have observed value receptor, pretreatment unit and an induction heater.
The specific descriptions of embodiment
In the scheme of foundation design of Fig. 1, metal strip 1 enters pickling portion 3 from a roll coil of strip 2.Here, roll coil of strip information 4 is transfused to one and sets up computation model 6 and/or and adjust in the computation model 8 and according to program and handle from a recipient 4a and a recipient 4b.In setting up computation model 6, can consider other observed value 7.Thus one, except the pickling parameter, can be according to before metal strip 1 access arrangement 5 pickling portions 3 and the roll coil of strip 2 and/or metal strip 1 parameter determined with topworks and/or measure are adjusted acid cleaning process.
According to first flexible program of Fig. 2, except the pre-setting of pickling parameter, also in adjusting computation model 8, handle a de-scaling measuring apparatus 10 with an observed value receptor M with coating or the relevant observed value of being grasped of de-scaling situation.According to setting up computation model 6 and coming the pre-setting acid cleaning process and adjust this acid cleaning process according to the adjustment computation model 8 of having considered oxide skin, liquid pool temperature, pickling medium temperature and/or acid concentration at least according to the observed value of the roll coil of strip 2.The additional measurements of the oxide skin before pickling portion 3 is used to the topworks in adjustment or readjustment equipment 5.
According to second flexible program of Fig. 3 and the suitable analysis of roll coil of strip information 4, carry out the running of pretreatment unit H, this pretreatment unit influences the pickling time.In addition, especially under the situation of the pickling time of having considered to change, with reset the evenly topworks slowly and fast of pickling portion of the observed value of adjusting computation model 8 or calculated value.
According to Fig. 4, promptly according to the 3rd flexible program, on direction of motion 9, be positioned at the observed value receptor M by oxide skin measuring apparatus 10 of ground before the pickling portion 9 measure simultaneously outside descale layer or the coating other observed value and with these observed values be used to reset pickling portion 3 and/or with observed value or calculated value balance.In addition, on the basis that the band input information and the machine of the roll coil of strip 2 are adjusted situation, adjust the pickling time.The observed value of being grasped relevant with coating or oxide skin is used to adjust the adjustment that is connected on the pretreatment unit H before the pickling portion 3.In addition, with reset the evenly topworks of pretreatment unit H and pickling portion 3 of observed value or calculated value.
According to the 4th flexible program of Fig. 5, except oxide skin measuring apparatus 10 and pretreatment unit H, also between pickling portion 3 and pretreatment unit H, inserted an induction heater W.The pickling time is defined as clearing up the duration of contact of surface and pickling medium, needs this section pickling time in order to remove impurity reliably from metal strip 1.Pretreatment unit H also can receive the warm up time that is induction heater W form.Pretreatment unit H generally has a mechanical type, abrasion formula, hydraulic type, laser optics formula or relies on the scale breaker of oscillation technology device work.The induction preheating that utilizes the metal strip 1 of induction heater W be before pickling portion 3, carry out and be used for adjusting apace metal strip temperature and pickling medium temperature.
The Reference numeral list The 1-metal tape; The 2-roll coil of strip; 3-pickling section; 4-is with volume information; 4a, 4b-message recipient; 5-Equipment with executing agency; 6-sets up computation model; The 7-measured value; 8-adjusts computation model; 9-The direction of motion; 10-oxide skin measurement mechanism; M-measured value receiver; The H-pretreatment unit; W-Induction heater;

Claims (12)

1, the acid washing method of a kind of metal band rolling and especially steel band, this metal strip is supplied to an acid cleaning process of being adjusted, it is characterized in that, except the pickling parameter, also adjust this acid cleaning process according to the roll coil of strip of before this metal strip enters pickling portion, having determined and/or having measured and/or the parameter of metal strip.
2, the method for claim 1, it is characterized in that this acid cleaning process is set up computation model according to one and come pre-setting and adjust according to an adjustment computation model of having considered the observed value of oxide skin, liquid pool temperature, pickling medium temperature and/or acid concentration at least according to a roll coil of strip observed value.
3, method as claimed in claim 1 or 2 is characterized in that, adjusts or the topworks of this pickler of resetting according to the oxidation cortex value of measuring before pickling portion.
4, as the described method of one of claim 1-3, it is characterized in that other observed value outside a zone measurement be arranged in pickling portion on direction of motion before descales layer or coating also is used to reset topworks and/or the balancing side value or the calculated value of pickling portion with described observed value.
5, as the described method of one of claim 1-4, it is characterized in that, adjust pickling portion according to the band input information and the equipment adjustment situation of the roll coil of strip.
As the described method of one of claim 1-5, it is characterized in that 6, the observed value of being surveyed relevant with coating or oxide skin is used to adjust a pretreatment unit that is connected on before the pickling portion.
7, method as claimed in claim 6 is characterized in that, with reset the evenly topworks of this pretreatment unit and pickling portion of observed value or calculated value.
8, the pickling installation of a kind of metal band rolling and especially steel band, described metal strip can be supplied to a pickler from a roll coil of strip on handling direction, drafted the adjustment of a plurality of parameters for this pickler, it is characterized in that, observed value can (4a sets up computation model (6) and through adjusting the executive device that computation model (8) is transformed into this pickling portion through one in 4b) from roll coil of strip observed value receptor or roll coil of strip metrical information receptor.
9, equipment as claimed in claim 1 is characterized in that, (4a 4b) can adjust the observed value input in the computation model (8) roll coil of strip observed value receptor.
10, equipment as claimed in claim 8 or 9 is characterized in that, observed value receptor (M) and relevant with a coating or oxide skin observed value can be used to the to reset topworks of pickling portion (3).
11, equipment as claimed in claim 8 or 9 is characterized in that, in the front of pickling portion (3) pretreatment unit (H) is set, and its observed value can be transfused to adjusts computation model (8).
12, as the described equipment of one of claim 7-11, it is characterized in that, between pretreatment unit (H) and pickling portion (3), insert an induction heater (W) that is used for band (1).
CN01805176A 2000-02-16 2001-02-15 Method and device for pickling rolled metal, in particular steel strip Pending CN1401015A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10007080.9 2000-02-16
DE10007080 2000-02-16
DE10062869.9 2000-12-16
DE10062869A DE10062869A1 (en) 2000-02-16 2000-12-16 Method and device for pickling rolled metal, in particular steel strip

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CN1401015A true CN1401015A (en) 2003-03-05

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US (1) US20030015259A1 (en)
EP (1) EP1257687A2 (en)
JP (1) JP2003528978A (en)
CN (1) CN1401015A (en)
AU (2) AU2001246436A2 (en)
BR (1) BR0107950A (en)
CA (1) CA2399754A1 (en)
CZ (1) CZ20022770A3 (en)
PL (1) PL362146A1 (en)
RU (1) RU2002124590A (en)
SK (1) SK11852002A3 (en)
WO (1) WO2001061073A2 (en)

Cited By (6)

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CN102220595A (en) * 2011-05-31 2011-10-19 马鞍山钢铁股份有限公司 Induction heating method and device for acid washing of hot rolled steel strip
CN106825080A (en) * 2017-01-11 2017-06-13 首钢京唐钢铁联合有限责任公司 A kind of method for removing Automobile Plate steel red rust defect
CN105648460B (en) * 2016-03-14 2018-02-13 佛山市网冠金属制品有限公司 A kind of intelligent spray system and method
CN107923050A (en) * 2015-07-22 2018-04-17 寇林公司 For optimizing the oxide skin adjusting method of high strength carbon steel alloy
CN110914475A (en) * 2017-05-24 2020-03-24 丹尼尔和科菲森梅克尼齐有限公司 Metal product cleaning equipment
CN115135805A (en) * 2020-02-18 2022-09-30 株式会社Posco Process control system and method of operating the same

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DE10031978A1 (en) * 2000-06-30 2002-01-10 Sms Demag Ag Method and device for automatic scale detection from surfaces of metallic strip material, in particular hot-rolled steel strip and stainless steel strip
KR100899687B1 (en) * 2002-08-23 2009-05-28 주식회사 포스코 Descaling method of hot coil
WO2010006895A1 (en) * 2008-07-16 2010-01-21 Siemens Aktiengesellschaft Operating method for a processing device processing a metal strip and system for processing a metal strip
CN106238470A (en) * 2015-06-09 2016-12-21 宝山钢铁股份有限公司 Consider the pickling time forecasting procedure of straightening scale breading effect
DE102018117475A1 (en) * 2018-07-19 2020-01-23 Sms Group Gmbh Pickling line for surface treatment of steel strips
CN114008246B (en) 2019-04-25 2024-03-01 斯佩拉有限公司 Surface treatment of flat products made of aluminium alloy, comprising colorimetric measurements
CN111519194B (en) * 2020-03-27 2022-02-11 佛山津西金兰冷轧板有限公司 Cold-rolled sheet manufacturing process
CN115044917B (en) * 2022-06-21 2023-10-03 北京首钢冷轧薄板有限公司 Method and device for determining pickling speed of hot rolled strip steel

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102220595A (en) * 2011-05-31 2011-10-19 马鞍山钢铁股份有限公司 Induction heating method and device for acid washing of hot rolled steel strip
CN107923050A (en) * 2015-07-22 2018-04-17 寇林公司 For optimizing the oxide skin adjusting method of high strength carbon steel alloy
CN107923050B (en) * 2015-07-22 2019-12-31 寇林公司 Oxide skin adjusting method for optimizing high-strength carbon steel alloy
US11208727B2 (en) 2015-07-22 2021-12-28 Kolene Corporation Scale conditioning process for advanced high strength carbon steel alloys
CN105648460B (en) * 2016-03-14 2018-02-13 佛山市网冠金属制品有限公司 A kind of intelligent spray system and method
CN106825080A (en) * 2017-01-11 2017-06-13 首钢京唐钢铁联合有限责任公司 A kind of method for removing Automobile Plate steel red rust defect
CN110914475A (en) * 2017-05-24 2020-03-24 丹尼尔和科菲森梅克尼齐有限公司 Metal product cleaning equipment
JP2020521052A (en) * 2017-05-24 2020-07-16 ダニエリ アンド シー.オフィス メカニケ エスピーエーDanieli&C.Officine Meccaniche Spa Cleaning plant for metal products
CN115135805A (en) * 2020-02-18 2022-09-30 株式会社Posco Process control system and method of operating the same

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WO2001061073A2 (en) 2001-08-23
US20030015259A1 (en) 2003-01-23
EP1257687A2 (en) 2002-11-20
CZ20022770A3 (en) 2003-03-12
CA2399754A1 (en) 2001-08-23
JP2003528978A (en) 2003-09-30
RU2002124590A (en) 2004-03-20
AU4643601A (en) 2001-08-27
SK11852002A3 (en) 2002-12-03
BR0107950A (en) 2004-01-06
PL362146A1 (en) 2004-10-18
AU2001246436A2 (en) 2001-08-27
WO2001061073A3 (en) 2002-04-25

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