US20030015259A1 - Method and device for pickling rolled metal, in particular steel strips - Google Patents

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

Info

Publication number
US20030015259A1
US20030015259A1 US10/203,846 US20384602A US2003015259A1 US 20030015259 A1 US20030015259 A1 US 20030015259A1 US 20384602 A US20384602 A US 20384602A US 2003015259 A1 US2003015259 A1 US 2003015259A1
Authority
US
United States
Prior art keywords
pickling
measured values
section
coil
measured
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.)
Abandoned
Application number
US10/203,846
Other languages
English (en)
Inventor
Rolf Bunten
Rolf Brisberger
Bodo Block
Jurgen Seidel
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
Individual
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/de
Application filed by Individual filed Critical Individual
Assigned to SMS DEMAG AG reassignment SMS DEMAG AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SEIDLE, JURGEN, BLOCK, BODO, BRISBERGER, ROLF, BUNTEN, ROLF
Publication of US20030015259A1 publication Critical patent/US20030015259A1/en
Assigned to SMS DEMAG AG reassignment SMS DEMAG AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SEIDEL, JURGEN, BLOCK, BODO, BRISBERGER, ROLF, BUNTEN, ROLF
Abandoned legal-status Critical Current

Links

Images

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
    • C23G3/027—Associated apparatus, e.g. for pretreating or after-treating
    • 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

Definitions

  • the present invention relates to a method and device for pickling of a metal, in particular, steel strip fed to a regulated pickling process.
  • DE 197 43 022 A1 discloses a method of pickling a metal strip based on a measurement in the displacement direction after the pickling plant and in which according to defect categories, which are determined by a measuring unit, pickling parameters such as, e.g., temperature of the pickling liquid, displacement speed of the metal strip, acid content in the pickling liquid, metal content, in particular, iron content, strip parameters such as, e.g., material and geometrical dimension, are adjusted.
  • pickling parameters such as, e.g., temperature of the pickling liquid, displacement speed of the metal strip, acid content in the pickling liquid, metal content, in particular, iron content, strip parameters such as, e.g., material and geometrical dimension.
  • the defects can only be subsequently determined as well as a conclusion made as to favorable pickling.
  • the control system deals only with the pickling plant itself.
  • a further method of pickling a rolled strip in a pickling plant is disclosed in EP-0 602 437 B1.
  • the method is based on a particular operating mode according to which several pickling vats adjoin each other one after the other.
  • an acid-containing pickling medium is sprayed by spraying nozzles arranged on a vat partially sidewise of, above and below the strip displacement plane, with the nozzles being variably controlled and with the pickling medium being introduced in an arbitrary preselected amount.
  • the acid concentration, and/or medium temperature, and/or the outlet speed of the pickling medium from nozzles are preselected.
  • An object of the invention is to carry out the pickling process not only on the basis of conventional pickling parameters but rather taking into consideration additional parameters outside of the pickling vat.
  • this object is achieved by regulating the pickling process, in addition to the pickling medium parameters, by parameters of a coil and/or metal strip determined and/or measured before the metal strip enters the pickling section.
  • the advantage consists in that the pickling parameters are so adjusted in advance that under- or over-pickling is prevented, in that the acid concentration and the acid supply are correctly adjusted, whereby the pickling medium is economically used, and in that the correct temperature can be calculated in advance, together with other adjustable pickling parameters.
  • the scale which is removed after casting, shaping, and annealing, and other coatings are already taken into consideration.
  • the invention also takes into consideration the preliminary breaking of the scale (by a stretching-bending-straightening leveller), whereby fissures and pores are formed in the scale layer, which increases the surface on which the acid acts.
  • the scale quantity which is dissolved in the pickling process, is reduced.
  • the preliminary descaling permits to reduce pickling time.
  • the temperature of the metal strip increases before the strip enters in the pickling section, the contact time of the strip surface with the pickling medium increases at an optimal pickling temperatures.
  • the heating path of the metal strip is shortened and the pickling time falls.
  • the pickling time also falls when the scale is removed by laser-optical means before the strip enters the pickling section, and the quantity of the to-be-dissolved scale is reduced.
  • the method includes preadjustment of the pickling process in accordance with measured values of a coil effected on a basis of a set-up computation model, and regulating the process on a basis of a regulating computation model that takes into consideration at least measured values for the scale, strip temperature, pickling medium temperature, and/or acid concentration.
  • the quantity of the scale e.g., needs not to be assessed, as was the case previously.
  • An integration of the additional scale calculation model takes place.
  • a target variable of such optimization can be: minimum energy use, variable coil output, acceleration reaction dependent on the surface contamination, minimizing the consumption of the pickling medium and losses of the pickling medium, minimizing overpickling, and minimizing underpickling.
  • measurement units for determining scaling can determine thickness of the scale layer, shape, distribution and color. To this end, precise calculation models are used.
  • the servo components of the pickling section are regulated or readjusted based on a measured value for the scale deposit before the pickling section. This makes possible regulation of the pickling section with a least possible transit time.
  • additional measured values for scale deposits or coating are determined in a region in a displacement direction in front of the pickling section, and are used for readjustment of the servo components of the pickling section and/or dependent on measured and/or calculated values.
  • the measured values for the coating or the scale are used for regulation of a pretreatment unit arranged upstream of the pickling section.
  • the object of the invention is achieved by communicating measured values from coil measured value or data transducers via a set-up computation model and a regulating computation model to adjustment units of a pickling section.
  • the pickling section can be operated with precise regulation which results in the above-discussed advantages.
  • measured value from coil measured value transducers are input into the regulating computation model.
  • the set-up computation model uses general entrance data for the metal strip.
  • the scale deposits can be calculated by using a trial computation model for effecting preliminary adjustment of the slow and rapid servo components of the pickling section or readjustment in accordance with comparison.
  • the measured values of a measured value transducer for coating or scale are used for readjustment of the servo components of the pickling section.
  • a pretreatment unit the measured values of which are input into the regulating computation model, is arranged upstream of the pickling section.
  • the pretreatment unit can influence the pickling time.
  • a heating unit a mechanical, abrasive, hydromechanical, laser-optical, or oscillating descaler can be used.
  • FIG. 1 a block-diagram of a basic design of a coil and pickling plant with regulation
  • FIG. 2 a first variant of the same block-diagram with a measured value transducer
  • FIG. 3 a second variant of the block-diagram with a pretreatment unit
  • FIG. 4 a third variant of the block-diagram with a measured value transducer and a pretreatment unit
  • FIG. 5 a fourth variant of the block-diagram with a measured value transducer, a pretreatment unit, and induction heating.
  • a metal strip is fed from a coil 2 into a pickling section 3 .
  • coil data 4 from a data transducer 4 a and a data transducer 4 b are introduced into a set-up computation model 6 and/or into a regulation computation model 8 and are processed in accordance with the program.
  • the set-up computation model 6 further measured values 7 can be taken into consideration.
  • the pickling process is regulated, in addition to the pickling medium parameters, before the metal strip 1 is fed into the pickling section 3 , by parameters of the coil 2 and/or the metal strip 1 which were determined, in the system 5 , with servo components and/or measured.
  • a pretreatment unit H which influences the pickling time
  • the slow and rapid servo components of the pickling section 3 are readjusted in accordance with measured and/or calculated values output by the regulating computation model 8 , in particular, taking into consideration the changed pickling times.
  • additional measured value of the scale deposits and coatings is determined by the measured value transducer M of the scale registration unit 10 located in front of the pickling section 3 in the displacement direction 9 , and is used for readjusting of the servo components of the pickling section 3 and/or in accordance with measured and calculated values.
  • the pickling times are regulated on the basis of the strip inlet information of the coiler 2 and the system set-up.
  • the acquired measured values with respect to coating and scale are used for regulating a pretreatment unit H located upstream of the pickling section 3 .
  • an induction heating unit W is provided between the pickling section 3 and the pretreatment unit H.
  • the pickling time is defined as a contact time of a to-be-cleaned surface with the pickling medium necessary for a reliable removal of the contamination from the strip 1 .
  • the pretreatment unit H can include a preheating unit in form of the induction heating unit W.
  • the pretreatment unit H basically includes a mechanical, abrasive, hydromechanical, laser-optical, or oscillating descaler.
  • the induction preheating of the metal strip by the induction heating unit W is effected before the pickling section and serves for a rapid regulation of the metal strip and pickling medium temperatures.
  • List of Reference Numerals 1. Metal Strip 2. Coil 3. Pickling Section 4. Coil-data 4a. Data Transducer 4b. Data Transducer 5. System With Servo Components 6. Set-up Computation Model 7. Measured Values 8. Regulating Computation Model 9. Displacement Direction 10. Scale Registration Unit M Measured Value Transducer H Pretreatment Unit W Induction Heating Unit

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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • ing And Chemical Polishing (AREA)
US10/203,846 2000-02-16 2001-02-15 Method and device for pickling rolled metal, in particular steel strips Abandoned US20030015259A1 (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 (de) 2000-02-16 2000-12-16 Verfahren und Einrichtung zum Beizen von gewalztem Metall-, insbesondere von Stahlband

Publications (1)

Publication Number Publication Date
US20030015259A1 true US20030015259A1 (en) 2003-01-23

Family

ID=26004374

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/203,846 Abandoned US20030015259A1 (en) 2000-02-16 2001-02-15 Method and device for pickling rolled metal, in particular steel strips

Country Status (12)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106238470A (zh) * 2015-06-09 2016-12-21 宝山钢铁股份有限公司 考虑拉矫破鳞效果的酸洗时间预报方法
CN111519194A (zh) * 2020-03-27 2020-08-11 佛山津西金兰冷轧板有限公司 一种冷轧板生产线及制造工艺
US20210269927A1 (en) * 2018-07-19 2021-09-02 Sms Group Gmbh Pickling plant for surface treatment of strip steel
US11338341B2 (en) 2017-05-24 2022-05-24 Danieli & C. Officine Meccaniche S.P.A. Cleaning plant for metal products
CN115044917A (zh) * 2022-06-21 2022-09-13 北京首钢冷轧薄板有限公司 热轧带钢酸洗速度确定方法及装置

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10031978A1 (de) * 2000-06-30 2002-01-10 Sms Demag Ag Verfahren und Vorrichtung zur automatischen Zundererkennung aus Oberflächen von metallischem Bandgut, insbesondere von warmgewalztem Stahlband und Edelstahlband
KR100899687B1 (ko) * 2002-08-23 2009-05-28 주식회사 포스코 열연강판의 산세방법
WO2010006895A1 (de) * 2008-07-16 2010-01-21 Siemens Aktiengesellschaft Betriebsverfahren für eine ein metallband bearbeitende bearbeitungseinrichtung und anlage zum bearbeiten eines metallbandes
CN102220595A (zh) * 2011-05-31 2011-10-19 马鞍山钢铁股份有限公司 热轧钢带酸洗的感应加热方法及其装置
JP6909786B2 (ja) * 2015-07-22 2021-07-28 コリーン コーポレーションＫｏｌｅｎｅ Ｃｏｒｐｏｒａｔｉｏｎ 高度な高強度炭素鋼合金用のスケールコンディショニングプロセス
CN105648460B (zh) * 2016-03-14 2018-02-13 佛山市网冠金属制品有限公司 一种智能喷涂系统及方法
CN106825080A (zh) * 2017-01-11 2017-06-13 首钢京唐钢铁联合有限责任公司 一种去除汽车板用钢红锈缺陷的方法
EP3959358B1 (de) 2019-04-25 2023-06-07 Speira GmbH Oberflächenbehandlung von flachprodukten aus aluminiumlegierungen umfassend farbmessungen
EP4108806A4 (en) * 2020-02-18 2023-07-26 Posco PROCESS CONTROL SYSTEM AND ASSOCIATED OPERATING PROCESS

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872245A (en) * 1985-03-15 1989-10-10 Nippon Steel Corporation Method and apparatus for manufacturing cold-rolled steel strip
US5175502A (en) * 1990-09-14 1992-12-29 Armco Steel Company, L.P. Method and apparatus for determining acid concentration
US6096137A (en) * 1997-03-03 2000-08-01 Hitachi, Ltd. Pickling plant and method of controlling the same
US6419756B1 (en) * 1997-09-29 2002-07-16 Siemens Aktiengellschaft Process and equipment for pickling a metal strip
US6450183B1 (en) * 1999-12-22 2002-09-17 Kolene Corporation Composition, apparatus, and method of conditioning scale on a metal surface

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325746A (en) * 1979-10-01 1982-04-20 Olin Corporation System for cleaning metal strip
JPH05202419A (ja) * 1992-01-27 1993-08-10 Kawasaki Steel Corp けい素鋼熱延板の脱スケール方法
FR2701410B1 (fr) * 1993-02-12 1995-05-05 Clecim Sa Installation de décapage d'une bande métallique.
AT404030B (de) * 1995-02-15 1998-07-27 Andritz Patentverwaltung Verfahren zur beize von materialien aus stahl, insbesondere edelstahl

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4872245A (en) * 1985-03-15 1989-10-10 Nippon Steel Corporation Method and apparatus for manufacturing cold-rolled steel strip
US5175502A (en) * 1990-09-14 1992-12-29 Armco Steel Company, L.P. Method and apparatus for determining acid concentration
US6096137A (en) * 1997-03-03 2000-08-01 Hitachi, Ltd. Pickling plant and method of controlling the same
US6419756B1 (en) * 1997-09-29 2002-07-16 Siemens Aktiengellschaft Process and equipment for pickling a metal strip
US6450183B1 (en) * 1999-12-22 2002-09-17 Kolene Corporation Composition, apparatus, and method of conditioning scale on a metal surface

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106238470A (zh) * 2015-06-09 2016-12-21 宝山钢铁股份有限公司 考虑拉矫破鳞效果的酸洗时间预报方法
US11338341B2 (en) 2017-05-24 2022-05-24 Danieli & C. Officine Meccaniche S.P.A. Cleaning plant for metal products
US20210269927A1 (en) * 2018-07-19 2021-09-02 Sms Group Gmbh Pickling plant for surface treatment of strip steel
CN111519194A (zh) * 2020-03-27 2020-08-11 佛山津西金兰冷轧板有限公司 一种冷轧板生产线及制造工艺
CN115044917A (zh) * 2022-06-21 2022-09-13 北京首钢冷轧薄板有限公司 热轧带钢酸洗速度确定方法及装置

Also Published As

Publication number Publication date
PL362146A1 (en) 2004-10-18
CN1401015A (zh) 2003-03-05
RU2002124590A (ru) 2004-03-20
JP2003528978A (ja) 2003-09-30
AU2001246436A2 (en) 2001-08-27
AU4643601A (en) 2001-08-27
CA2399754A1 (en) 2001-08-23
WO2001061073A3 (de) 2002-04-25
BR0107950A (pt) 2004-01-06
SK11852002A3 (sk) 2002-12-03
CZ20022770A3 (cs) 2003-03-12
WO2001061073A2 (de) 2001-08-23
EP1257687A2 (de) 2002-11-20

Similar Documents

Publication Publication Date Title
US20030015259A1 (en) Method and device for pickling rolled metal, in particular steel strips
US7181943B2 (en) Descaling method for strip-rolling mill
CN100493749C (zh) 一种在热轧过程中粗轧板坯温度控制方法
US6044895A (en) Continuous casting and rolling system including control system
JP2000135507A (ja) 冷却区間を制御するための方法およびシステム
KR100643373B1 (ko) 열간압연 후물재 길이방향 온도 제어방법
US20080135203A1 (en) Continuous Casting and Rolling Installation For Producing a Steel Strip
RU2121408C1 (ru) Установка для бесслитковой прокатки стальных лент
CN109550794A (zh) 一种用于热轧精轧出口温度的前馈控制方法
JPH01205810A (ja) デスケーリング後のスケール生成防止方法
KR20040046126A (ko) 열연강판의 폭방향 균일냉각시스템
CN114126777A (zh) 用于控制轧机列中的冷却装置的方法
JPS5828352B2 (ja) ステンレス鋼熱延コイルの酸洗制御方法および装置
JPH0536125B2 (pt)
KR102448426B1 (ko) 어닐링 로의 작동 방법
US20030084930A1 (en) Method of controlling a chemical cleaning line for aluminum strip
KR20020077879A (ko) 압연 금속 스트립, 특히 강 스트립의 피클링 방법 및 장치
JPH11156426A (ja) デスケーリング装置及びデスケーリング方法
CN111195655B (zh) 一种高碳钢头部冲击痕的控制方法
JPS6268616A (ja) 板幅制御方法
JPH0663636A (ja) 熱延鋼板の予備冷却装置
RU2701595C1 (ru) Устройство и способ изготовления заготовки заданного типа
CN112739469B (zh) 用于制造金属物品的方法
JPH11221606A (ja) 熱延鋼帯の圧延方法
JP2003025008A (ja) 熱間圧延における被圧延金属材の冷却制御方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: SMS DEMAG AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BUNTEN, ROLF;BRISBERGER, ROLF;BLOCK, BODO;AND OTHERS;REEL/FRAME:013354/0871;SIGNING DATES FROM 20020719 TO 20020729

AS Assignment

Owner name: SMS DEMAG AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BUNTEN, ROLF;BRISBERGER, ROLF;BLOCK, BODO;AND OTHERS;REEL/FRAME:013725/0876;SIGNING DATES FROM 20020719 TO 20020729

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION