EP1276918A1 - Verfahren und vorrichtung zum behandeln der oberflächen von metallischen, insbesondere zum beizen von walzgut - Google Patents
Verfahren und vorrichtung zum behandeln der oberflächen von metallischen, insbesondere zum beizen von walzgutInfo
- Publication number
- EP1276918A1 EP1276918A1 EP01945024A EP01945024A EP1276918A1 EP 1276918 A1 EP1276918 A1 EP 1276918A1 EP 01945024 A EP01945024 A EP 01945024A EP 01945024 A EP01945024 A EP 01945024A EP 1276918 A1 EP1276918 A1 EP 1276918A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channel
- pickling
- transport direction
- jets
- strip
- 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.)
- Withdrawn
Links
- 238000005554 pickling Methods 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002253 acid Substances 0.000 claims abstract description 3
- 230000003111 delayed effect Effects 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- C23G3/023—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by spraying
Definitions
- the invention relates to a method and a device for treating the surface of metallic strip material, in particular for pickling rolled material, which is transported through a treatment channel and sprayed with an acid-containing pickling medium, the rays being set at the channel entrance in the strip transport direction and at the channel exit to the strip transport direction be directed in the opposite direction to prevent the pickling medium from draining away quickly.
- turbulence pickling In addition to a treatment process with laminar pickling medium streams, turbulence pickling is known in which the metal strip moves horizontally and flat through a channel. The metal band is supported on the underside of sliding blocks. At the channel entrance, pickling medium from nozzles is sprayed into jets on the top of the strip, whereby a pickling medium film is produced on the top of the strip. At the channel exit, pickling medium is also sprayed into jets on the top of the strip, but in the opposite direction to the transport of the metal strip, whereby the pickling medium film is retained and the pickling medium is held at the exit from the pickling.
- a method and a device for treating material webs in a treatment chamber are known (DE-OS 29 11 701), which in the interior of the treatment chamber successively, turbulent flows of the treatment medium under pressure at an angle of substantially less than 90 on the two material web surfaces ° and directed opposite to the direction of web travel that the web is treated and at the same time is guided through the medium bed in an approximately horizontal path through the treatment chamber.
- the media rays are only guided in the specified direction. Therefore, no attention is paid to media film formation. As a result, the consumption of pickling medium is very high.
- the method described at the outset is e.g. known from DE 40 31 234 C2, in which the treatment liquid above and below the material to be treated is conveyed in opposite directions from both longitudinal sides at an acute angle against the material to be treated.
- a method is also known (EP 0 482 725 A1), in which an optimal pickling result is associated with minimal consumption of pickling medium by regulating the turbulence of the flow in the pickling medium as a function of the throughput speed of the strip to be pickled.
- this is only a control procedure for some parameters of the pickling process.
- a double injection of pickling medium between the channel entrance and the channel exit is also known from EP 602 437 A1.
- the pickling medium is injected on both sides, above and below the strip running level. Apart from the rows of injectors at the channel entrance and at the channel exit, however, no measures are provided for guiding the pickling medium.
- the object of the invention is to improve the flow conditions in the channel on the surface of the material to be treated in such a way that a largely closed liquid film with turbulence is created and is retained up to the channel exit.
- the object is achieved by a method according to the invention in that additional nozzle jets are directed against the belt transport direction between the channel inlet and the channel outlet and in that the leakage of the pickling medium at the channel outlet is further delayed by mechanical resistance of the transport channel section.
- a device achieves the object according to the invention in that additional jets from injection nozzle rows directed against the direction of transport are provided between the channel inlet and the channel outlet and in that the runout of the pickling medium is inhibited by means of deflection elements which are attached to the channel ceiling and run transversely or obliquely to the belt transport direction ,
- a transverse arrangement of the throttle or blocking flaps can change and hinder the flow of the pickling medium in the transport direction. This also relieves the pressure on the hydrodynamic seal at the channel outlet and at the same time achieves the desired swirling.
- the flow can be influenced by varying the angle of attack (to the width or to the belt surface).
- the deflection elements be arranged in a meandering shape.
- a transverse bulkhead can be arranged, which is mounted on one side of the pickling tank and on the other side, like a rudder, generates a transverse flow.
- deflecting elements consist of hydrodynamically acting bulkhead walls which can be adjusted against a sliding block attached to the channel floor at a distance between the strip thickness and the flow height. This also results in pressure relief and turbulence near the strip surface. Pressure and amount of pickling medium can be regulated by the amount of pickling medium passed through the bulkhead. The same applies to the passage of pickling medium through the sliding blocks.
- the sliding blocks attached to the channel floor are provided with a flow profile.
- a hydrodynamic sliding film is created between the belt surface and the nozzle edge. A very high flow velocity occurs in this layer. If there are continuous flatness errors, the row of injectors can be raised, creating a locally increased pressure with a reduced release film. This formation of the injector rows in a transverse Schott slows down the pickling medium flow on the top of the belt. The hydrodynamic seal at the duct outlet is relieved.
- the flow can also be influenced, as on the underside of the belt, on the top of the belt.
- the deflection elements consist of sliding blocks which are fastened to the channel ceiling and to the channel floor and are respectively offset in relation to one another in the tape transport direction. This also increases the flow speed on the top and bottom as the belt speed increases.
- the arrangement of the sliding blocks can in turn be meandering or else parallel or oblique.
- stirring elements which can be driven from the outside and rotate counter to the transport direction are provided between the channel cover and the strip material lying on lower sliding blocks.
- the stirring elements also deflect the flow.
- stirring elements can be used in a variety of forms.
- the stirring elements increase the relative speed of the pickling medium and the strip material during the entire pickling run compared to conventional designs.
- An advantageous embodiment consists in that the stirring elements are each formed from a cylindrical body with blades attached to its circumference. This creates a turbine wheel-like design that can move large quantities of pickling medium.
- Corresponding channel cross sections can also be achieved in that the stirring elements are each arranged opposite a lower sliding block.
- FIG. 2A is a plan view belonging to FIG. 2,
- FIG. 3A shows a detail from FIG. 3 on an enlarged scale
- Fig. 5 shows the band channel longitudinal section in a fourth embodiment
- FIG. 5A shows a detail of the stirring element from FIG. 5 on an enlarged scale
- the device for treating the surface of metallic strip material 1, in particular for pickling rolled material is represented by a treatment channel 2 in a pickling basin.
- the strip material 1 is guided through the treatment channel 2 by means of pairs of transport rollers arranged at a channel inlet 2a and at the channel outlet 2b.
- the strip material 1 is sprayed with an acidic pickling agent 3 for descaling in jets which emerge from several bars with rows of injection nozzles 4a.
- the beams 4 are set at the channel entrance 2a in the tape transport direction 5 and counter to the channel exit 2b Belt transport direction 5 to inhibit a rapid drainage of the pickling medium 3.
- additional jets 4 with injection nozzle rows 4a are provided in a transport channel section 6 from the channel outlet 2b, directed against the belt transport direction 5.
- this includes deflection elements 8 which prevent the pickling medium 3 from escaping and which distribute the pickling medium 3 over a wide area, approximately at right angles to or at an angle to the belt transport direction 5, and are attached to the duct ceiling 2c 2 can be formed from throttle or blocking flaps 9 which are rotatable or pivotable on the duct ceiling 2c.
- deflection elements 8 each form a mechanical resistance 7 within a transport channel section 6.
- the mechanical resistances 7 according to FIG. 2A can be arranged in a meandering shape in the form of the deflection elements 8.
- FIGS. 3 and 3A A second embodiment is shown in FIGS. 3 and 3A.
- the deflection elements 8 are constructed from hydrodynamically acting bulkhead walls 10. These bulkheads 10 are provided both on the channel ceiling 2c and on the channel floor 2d, in each case in pairs opposite one another.
- 3A shows larger, the beam 4 is formed in the center of the bulkhead 10 of a lower sliding block 11 and an upper sliding block 14. The distance of the upper sliding block 14 from the lower sliding block 11 creates a flow height 12 which can be influenced by a flow profile 13. The distance between the upper sliding block 14 and the lower sliding block 11 is determined by this bilateral flow height 12 and by the strip thickness 1 a of the metallic strip material 1.
- a third embodiment results from FIGS. 4 and 4A.
- the deflection elements 8 each consist of the lower sliding block 11 and the upper sliding block 14, which are fastened to the channel ceiling 2c and are fastened to the channel floor 2d and offset in relation to one another in the tape transport direction 5, and have a full cross section.
- These sliding blocks 11 and 14 can be arranged according to FIG. 4A by configurations offset in the same groups in the belt transport direction 5, in order to produce a distribution and swirling of the pickling medium.
- FIG. 5 and 5A show a fourth embodiment of the deflecting elements 8.
- a plurality of stirring elements 15 which can be driven in rotation from the outside are provided between the channel cover 2c and band material 1 resting on lower sliding blocks 11.
- the stirring elements 15 each have a cylindrical body 16 and blades 17 attached to the cylinder periphery 16a, similar to a turbine or water wheel.
- Such stirring elements 15 are each arranged opposite a lower sliding block 11.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10020633 | 2000-04-27 | ||
DE10020633A DE10020633A1 (de) | 2000-04-27 | 2000-04-27 | Verfahren und Vorrichtung zum Behandeln der Oberfläche von metallischem Bandgut, insbesondere zum Beizen von Walzgut |
PCT/EP2001/004489 WO2001081655A1 (de) | 2000-04-27 | 2001-04-20 | Verfahren und vorrichtung zum behandeln der oberflächen von metallischem bandgut, insbesondere zum beizen von walzgut |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1276918A1 true EP1276918A1 (de) | 2003-01-22 |
Family
ID=7640098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01945024A Withdrawn EP1276918A1 (de) | 2000-04-27 | 2001-04-20 | Verfahren und vorrichtung zum behandeln der oberflächen von metallischen, insbesondere zum beizen von walzgut |
Country Status (13)
Country | Link |
---|---|
US (1) | US7011714B2 (de) |
EP (1) | EP1276918A1 (de) |
JP (1) | JP2003531299A (de) |
KR (1) | KR100752707B1 (de) |
CN (1) | CN1203214C (de) |
AU (1) | AU782365B2 (de) |
CA (1) | CA2402423A1 (de) |
DE (1) | DE10020633A1 (de) |
EG (1) | EG22830A (de) |
MX (1) | MXPA02006291A (de) |
MY (1) | MY135420A (de) |
TW (1) | TW574426B (de) |
WO (1) | WO2001081655A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10518295B2 (en) * | 2012-05-31 | 2019-12-31 | Technical Devices Company | Method for containing a fluid volume in an inline conveyorized cleaner for cleaning low standoff components |
CN107282660B (zh) * | 2016-03-31 | 2020-07-03 | 宝山钢铁股份有限公司 | 降低压力波动的层流冷却上喷遮挡装置 |
CN108099225B (zh) * | 2017-12-18 | 2023-10-31 | 金发科技股份有限公司 | 一种交变压力熔融浸渍设备及熔融浸渍方法 |
CN109332242A (zh) * | 2018-11-28 | 2019-02-15 | 安徽省徽腾智能交通科技有限公司 | 一种铝合金带自动清洁装置 |
CN111719162A (zh) * | 2019-03-21 | 2020-09-29 | 宝山钢铁股份有限公司 | 一种带钢酸洗系统 |
KR102237629B1 (ko) * | 2019-11-22 | 2021-04-07 | 현대제철 주식회사 | 산세탱크의 산용액 쏠림 방지장치 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4108516A1 (de) * | 1990-03-16 | 1991-09-19 | Hitachi Ltd | Hochgeschwindigkeits-beizvorrichtung und hochgeschwindigkeits-beizverfahren |
EP0795629A1 (de) * | 1996-03-14 | 1997-09-17 | Andritz-Patentverwaltungs-Gesellschaft m.b.H. | Vorrichtung zum Oberflächenbehandeln von Bändern mit Flüssigkeiten |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3032890A (en) * | 1958-03-28 | 1962-05-08 | Continental Can Co | Sealing structures for treating chambers |
US3044098A (en) * | 1959-06-02 | 1962-07-17 | United States Steel Corp | Apparatus for cleaning wire rod |
US3082774A (en) * | 1961-02-08 | 1963-03-26 | Ct Circuits Inc | Etching machine |
GB1110799A (en) * | 1964-06-12 | 1968-04-24 | Porous Plastics Ltd | Improvements relating to conveyors for strip material |
GB1143224A (en) * | 1965-02-24 | 1969-02-19 | Kovofinis | Improvements in or relating to the continuous surface treatment of objects of simple shape |
US3734109A (en) * | 1971-03-08 | 1973-05-22 | P Hebner | Spray cleaning system |
FR2223096B1 (de) * | 1973-03-26 | 1976-09-10 | Usinor | |
US4270317A (en) * | 1978-10-10 | 1981-06-02 | Midland-Ross Corporation | Apparatus used in the treatment of a continuous strip of metal and method of use thereof |
GB2031036B (en) * | 1978-10-10 | 1982-11-03 | Midland Ross Corp | Liquid trestment of metal strip |
JPS5792141A (en) * | 1980-11-27 | 1982-06-08 | Kawasaki Steel Corp | Continuous hardening device for steel plate |
US4811748A (en) * | 1986-04-04 | 1989-03-14 | Naniwa Seitei Kabushiki Kaisha | Method and apparatus for continuously applying surface treatment onto an article being fed along a pass line |
DE3629894A1 (de) * | 1986-08-29 | 1988-03-03 | Mannesmann Ag | Anlage zur oberflaechenbehandlung von kontinuierlich durchlaufenden baendern, insbesondere beizanlage |
US5188135A (en) * | 1990-02-23 | 1993-02-23 | Neumann Industries, Inc. | Method and apparatus for processing sheet metal blanks and continuous strip |
DE4033867C2 (de) * | 1990-10-22 | 1993-11-11 | Mannesmann Ag | Verfahren zum Beizen von Bändern |
US5118357A (en) * | 1991-03-20 | 1992-06-02 | Finishing Equipment, Inc. | Treatment fluid application and recovery apparatus and method |
US5294259A (en) * | 1992-05-18 | 1994-03-15 | International Business Machines Corporation | Fluid treatment device |
US5282838A (en) * | 1992-06-08 | 1994-02-01 | Cardiac Pacemakers, Inc. | Dual chamber cardiac pacemaker employing hysteresis to maximize the number of normally conducted ventricular beats with an optimum A-V delay for paced ventricular beats |
DE4240572A1 (de) * | 1992-12-03 | 1994-06-09 | Schloemann Siemag Ag | Beizanlage und Verfahren zum Betreiben der Beizanlage |
US5558113A (en) * | 1994-03-01 | 1996-09-24 | Osram Sylvania Inc. | Wire strand cleaner |
EP0984080B1 (de) * | 1998-03-11 | 2002-10-16 | Mitsubishi Heavy Industries, Ltd. | Beizvorrichtung |
US6260563B1 (en) * | 1999-05-20 | 2001-07-17 | Danieli Technology, Inc. | High speed pickling with recycling of acid |
JP3349117B2 (ja) * | 1999-07-06 | 2002-11-20 | 住友金属工業株式会社 | 横型酸洗装置 |
-
2000
- 2000-04-27 DE DE10020633A patent/DE10020633A1/de not_active Withdrawn
-
2001
- 2001-04-20 EP EP01945024A patent/EP1276918A1/de not_active Withdrawn
- 2001-04-20 MX MXPA02006291A patent/MXPA02006291A/es active IP Right Grant
- 2001-04-20 KR KR1020027006516A patent/KR100752707B1/ko not_active IP Right Cessation
- 2001-04-20 CN CNB018087310A patent/CN1203214C/zh not_active Expired - Fee Related
- 2001-04-20 CA CA002402423A patent/CA2402423A1/en not_active Abandoned
- 2001-04-20 JP JP2001578721A patent/JP2003531299A/ja not_active Withdrawn
- 2001-04-20 US US10/169,213 patent/US7011714B2/en not_active Expired - Fee Related
- 2001-04-20 WO PCT/EP2001/004489 patent/WO2001081655A1/de not_active Application Discontinuation
- 2001-04-20 AU AU67361/01A patent/AU782365B2/en not_active Ceased
- 2001-04-24 EG EG20010404A patent/EG22830A/xx active
- 2001-04-25 MY MYPI20011931A patent/MY135420A/en unknown
- 2001-04-25 TW TW90109859A patent/TW574426B/zh not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4108516A1 (de) * | 1990-03-16 | 1991-09-19 | Hitachi Ltd | Hochgeschwindigkeits-beizvorrichtung und hochgeschwindigkeits-beizverfahren |
EP0795629A1 (de) * | 1996-03-14 | 1997-09-17 | Andritz-Patentverwaltungs-Gesellschaft m.b.H. | Vorrichtung zum Oberflächenbehandeln von Bändern mit Flüssigkeiten |
Non-Patent Citations (1)
Title |
---|
See also references of WO0181655A1 * |
Also Published As
Publication number | Publication date |
---|---|
TW574426B (en) | 2004-02-01 |
CN1203214C (zh) | 2005-05-25 |
WO2001081655A1 (de) | 2001-11-01 |
US20030000551A1 (en) | 2003-01-02 |
KR20020091052A (ko) | 2002-12-05 |
MXPA02006291A (es) | 2003-02-12 |
MY135420A (en) | 2008-04-30 |
CA2402423A1 (en) | 2001-11-01 |
CN1426493A (zh) | 2003-06-25 |
US7011714B2 (en) | 2006-03-14 |
AU782365B2 (en) | 2005-07-21 |
DE10020633A1 (de) | 2001-11-08 |
KR100752707B1 (ko) | 2007-08-29 |
EG22830A (en) | 2003-09-30 |
AU6736101A (en) | 2001-11-07 |
JP2003531299A (ja) | 2003-10-21 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BLOCK, BODO Inventor name: SCHUELER, PETER Inventor name: GRAMER, ANDREAS Inventor name: HAENTJES, MICHAEL Inventor name: BUENTEN, ROLF Inventor name: BEHRENS, HOLGER |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHUELER, PETER Inventor name: BLOCK, BODO Inventor name: GRAMER, ANDREAS Inventor name: HAENTJES, MICHAEL Inventor name: BUENTEN, ROLF Inventor name: BEHRENS, HOLGER |
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18D | Application deemed to be withdrawn |
Effective date: 20080408 |