WO2021110567A1 - Appareil de rinçage et son utilisation - Google Patents

Appareil de rinçage et son utilisation Download PDF

Info

Publication number
WO2021110567A1
WO2021110567A1 PCT/EP2020/083825 EP2020083825W WO2021110567A1 WO 2021110567 A1 WO2021110567 A1 WO 2021110567A1 EP 2020083825 W EP2020083825 W EP 2020083825W WO 2021110567 A1 WO2021110567 A1 WO 2021110567A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal strip
rinsing
rinse liquid
roller pair
roller
Prior art date
Application number
PCT/EP2020/083825
Other languages
English (en)
Inventor
Jacob Miedema
Original Assignee
Tata Steel Ijmuiden B.V.
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
Application filed by Tata Steel Ijmuiden B.V. filed Critical Tata Steel Ijmuiden B.V.
Priority to ES20812340T priority Critical patent/ES2974987T3/es
Priority to PL20812340.6T priority patent/PL4069886T3/pl
Priority to EP20812340.6A priority patent/EP4069886B1/fr
Priority to RS20240374A priority patent/RS65350B1/sr
Publication of WO2021110567A1 publication Critical patent/WO2021110567A1/fr

Links

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
    • C23G3/029—Associated apparatus, e.g. for pretreating or after-treating for removing the pickling fluid from the objects
    • 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
    • B08B3/022—Cleaning travelling work
    • 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
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/041—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
    • B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
    • B21C43/04—Devices for de-scaling wire or like flexible work
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • 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

  • This invention relates to a rinsing apparatus for use in a metal strip processing line and to a method of using said rinsing apparatus.
  • Conventional metal strip processing lines such as a plating line, a pickling line or a cleaning line, in many cases also include a rinsing step.
  • This rinsing step usually requires a complicated set-up involving tanks, pumps, sprayers, etc. and the associated flow and level controls.
  • the pickling of steel is a process for removing scale from the surface of the steel that is present after various forming operations. Continuous sheets of steel are typically carried through several acid baths by immersing the metal strip completely in the baths for enough time to remove the scale. It is necessary to remove the acid residue from the steel after the pickling step to prevent corrosion, staining or spotting of the surface.
  • Pickling plants for treating a continuous steel metal strip usually include a metal strip rinsing facility downstream of the acid pickling stage in order to remove any residual pickling acid still adhering to the surface of the metal strip as the metal strip exits the pickling section.
  • This rinsing process can be implemented by spraying the rinsing liquid directly onto the metal strip.
  • the metal strip can be rinsed by pulling the metal strip through a bath of the rinsing liquid.
  • the metal strip surface suffers serious discoloration due to oxidation if the air and rinsing water act on the metal strip simultaneously during prolonged stoppages of the metal strip movement through the rinse station.
  • This invention relates generally to metal strip processing lines of the kind utilised in steel-making plants and has to do particularly with processing lines in which the steel metal strip is at some point passed through a liquid in a process tank. Upon emergence from the process tank, the steel metal strip retains on its surface a layer of the liquid. This liquid layer usually must be removed from the strip.
  • metal strip processing lines employ a wringer roll arrangement in which the metal strip is passed between the nip of one or more pairs of freely rotating rubber rolls.
  • a state-of-the-art rinsing apparatus in a continuous metal strip processing line as depicted in Figure 1 requires considerable amounts of space in terms of line length and space for the intermediate storage of rinse liquid and waste-water treatment.
  • the equipment is extensive, and the system is also quite inflexible.
  • the amount of waste water produced is large. Objectives of the invention
  • Another object of the invention is to provide a process and apparatus for rinsing a metal strip with a rinse liquid using equipment that is economical and easy to assemble.
  • the metal strip leaves the process tank and is directed upwardly into the rinsing apparatus in a substantially vertical direction.
  • the rinsing apparatus comprises a plurality (N) of roller pairs, where N is at least 3.
  • N is at least 3.
  • the lowest roller pair is identified as roller pair number 1 (indicated with "a" in figure 2) and the upper roller pair is roller pair number N.
  • the roller pairs create a substantially equidistant slit through which the metal strip is led upwardly.
  • the axes of the rollers of each roller pair are substantially horizontal and substantially parallel. Small deviations may be tolerable but if the deviations become too large then the flow of water and metal becomes disturbed leading to uneven rinsing or pinching of the strip.
  • Fresh rinse liquid is introduced in the upper part of the rinsing apparatus to benefit from its downwards cascading in the most efficient and effective way.
  • the uppermost roller pair or roller pairs may act as drying rolls, and in that case the rinse liquid is introduced below the first pair of drying rolls.
  • Rinse liquid may be introduced at one location, or at more than one location further down the rinsing apparatus.
  • the means to provide the rinse liquid towards the metal strip are located such to introduce the rinse liquid in the gap between two subsequent rolls.
  • the rinse liquid must be introduced in such a way that an even rinsing over the width of the metal strip is obtained, e.g. by using a plurality of spray nozzles over the width of the device.
  • the means to provide the rinse liquid are installed on both sides of the metal strip and preferably symmetrically. If so desired, additional means to provide rinse liquid to the metal strip may be installed in gaps between two subsequent rolls upstream of the metal strip (i.e. further down in the rinsing apparatus).
  • roller pairs can be driven by external means such as a motor, or by the strip.
  • the former requires careful control of the rotation to prevent scratching or pinching of the metal strip.
  • the latter means that the strip is pulled through the rinsing apparatus which may, particularly for very thin and/or soft metal strip, require careful handling.
  • the rotation of the roller pairs is such that at the point of contact with the metal strip the roll surface moves upwardly, substantially with the same speed circumferential speed as the speed of the strip moving upwardly, thus assisting the upward travel of the metal strip and avoiding scratches or other damage to the strip surface, and the roll surface moves downwardly at the point opposite of the point of contact with the metal strip, thus assisting the downward travel of the rinse liquid.
  • the rinse liquid is preferably water, or water-based. Additives may be provided to the rinse liquid if so desired.
  • the main purposes of the encapsulating shield are to control the flow of the rinse liquid in the rinsing apparatus and to prevent spillage of (used and potentially polluted) rinsing liquid because the shield catches any liquid flung away from the rollers and leads it back to the metal strip surface.
  • the encapsulating shield follows the contours of the roller pairs, and more preferably the distance between the encapsulating shield and the surface of the rollers is substantially constant. This allows the flow of rinsing liquid to be laminar through the device, rather than turbulent. However, if so desired, the encapsulating shield can also be designed such that the flow is turbulent, rather than laminar.
  • the flinging away of the rinse liquid from the roller pairs has several technical drawbacks. Firstly, the rinse liquid is no longer available for rinsing the metal strip further down the rinsing apparatus if the rinse liquid is flung out of the rinsing apparatus. Secondly, the effectivity of the rinsing process becomes lower and less controlled, for example because the amount of rinse liquid being flung out may not be constant, and thirdly, the used rinse liquid may scatter contaminants around if the unrinsed metal strip has picked up these contaminants from the process tanks. These contaminants may be harmful, and thus scattering these around must be prevented.
  • the amount of ground space required in the line is reduced because the line goes up during rinsing. Only one rinse liquid collector may be needed, and the amount of rinse liquid is reduced due to a more efficient use of the rinse liquid because of the counterflow of rinse liquid and metal strip to be rinsed.
  • the equipment is also relatively simple, and easier to control.
  • the used rinse water is discarded into the process tank and dilutes the contents of the process tank. This may partly or completely compensate any evaporation that takes place from the contents in the process tank. Any excess rinse water can be collected and led away.
  • the rinse liquid is transported downwardly by the combined effect of gravity and by the rotating rolls in the direction of the rotation of the rolls. This means that the rinse liquid is carried downwardly by the rotating rolls during their rotation and transported to the metal strip. This outward movement of the rinse liquid and the transport to the metal strip is depicted in figure 2 by the arrows in the rinse liquid. It is unlikely that significant amounts of rinsing liquids seep downwardly through the slit between the roller pairs when a metal strip (with its adhering liquid layer) to be rinsed is travelling upwardly through the slit.
  • the rolls pairs do allow a small amount of liquid adhering to the metal strip to pass with metal strip upwardly.
  • This adhering liquid is diluted each time by the rinse liquid in the gaps between subsequent rollers, so the result is that the liquid that is adhering to the metal strip becomes more diluted each time a pair of rollers is passed.
  • the last roll pair is a drying roll, then most, if not all, of the remaining liquid is removed from the metal strip just before exiting the rinsing apparatus.
  • a drying step after the rinsing apparatus may be provided to completely dry the metal strip.
  • the rinse liquid is sprayed towards the strip between two pairs of rollers.
  • the term “towards” includes (i) the spraying directly onto the metal strip or (ii) the spraying into the gap between the rollers but not directly onto the metal strip or (iii) both.
  • the spraying of the rinse liquid directly onto the strip after which the rinse liquid joins the water cushion is the most effective version because then the strip is directly rinsed with the cleanest rinse liquid.
  • the rinse liquid forms a rinse liquid cushion in the gap (see e.g. figure 2) which dilutes the adhering liquid film on the metal strip. This may be between the top roller pair (N) and the one just below that (N-l) or lower down in the apparatus.
  • roller pair(s) above the point where the rinse liquid is sprayed onto the strip may serve as drying rollers.
  • the minimum amount of roller pairs is 3, but it is preferable to have at least 4 or 5 roller pairs.
  • a suitable maximum number of roller pairs is 10, preferably N is at most 9, more preferably at most 8. It should be noted that (pairs of) guiding rolls or pairs of turning rolls, which have no rinsing or drying contribution according to the invention are not counted in this invention. Turning rolls are not shown in the figures (see e.g.
  • FIG 2 where the strip changes direction from horizontal in the process tank to vertical in the rinsing apparatus.
  • the fresh rinse liquid rinses the strip at the point where the rinse liquid is sprayed onto the strip and is subsequently transported down by the joint effect of gravity and the rotation of the roller pair below the point of insertion.
  • the roller pair picks up the liquid and transports it to the gap between that roller pair and the roller pair below it, thereby again allowing the rinse liquid to contact the metal strip and clean it. Only minute amounts of rinse liquid cling to the strip and are transported upwardly. Most of the rinse liquid is transported again by the roller pair further down the rinsing apparatus, thereby rinsing the metal strip in counterflow.
  • the rinse liquid travels downwardly, and the strip travels upwardly.
  • the rinse liquid that is provided to the metal strip tends to adhere to the rotating rollers. However, above a certain threshold rotational speed the rinse liquid is no longer able to cling to the roller's surface and will be flung away from the roller in all directions.
  • the centrifugal force that is responsible for that can be calculated, so that the maximum rotational speed of the surface of the roller can be calculated before the rinse liquid is flung away from the roller.
  • the rotational speed is dependent on the roll radius and the frequency of rotation.
  • the speed of rotation of the rollers can be limited. However, this requires a low line speed.
  • an encapsulating shield must be used that prevents the rinse liquid to be flung away from the rolls and contains the rinse liquid near the rolls. The rolls are then able to transport the rinse liquid from the upper parts of the rinsing apparatus where the fresh rinse liquid is introduced to subsequently lower parts of the rinsing apparatus wherein the rinse liquid is brought into contact with the metal strip to be rinsed each time until the lowest pair of rollers is reached, after which the rinse liquid is collected and led away for waste rinse liquid treatment and possible re-use after said treatment, or proper disposal of the waste rinse liquid.
  • Drying may also be performed by subjecting the metal strip to a drying treatment, e.g. by convection drying or blowing (hot) air onto the surface.
  • a drying treatment e.g. by convection drying or blowing (hot) air onto the surface.
  • Wringer rolls are known to pass 5 ml/m 2 (or 5.10 6 m 3 /m 2 ) between the wringer roll and the strip. This means that for a 1 meter wide strip an amount of v.w.5.10 6 m 3 of water is let through between the roller and the strip.
  • the thickness of the water layer clinging to the roller during its rotation is calculated by equalling the value of pd r v 2
  • the rinse liquid is flung from the rollers because the liquid can no longer have a rinsing effect after that, and the fresh or used rinse liquid also flies everywhere uncontrollably.
  • the inventor found that it the application of an encapsulating shielding closely following the contours of the roller pairs enables to maximally benefit from the rinsing effect and the cascading-down effect of the subsequent roller pairs.
  • the rinse liquid that would otherwise be flung from the rollers is encapsulated by the shielding and will be led back to the metal strip to rinse it upstream as seen from the travelling direction of the metal strip.
  • roller pairs may be provided with means to open and close the slit between the roller pair.
  • the means to open and close the slit between the roller pair may enable pressing the pairs of rolls together to exert pressure on the passing metal strip.
  • the means may be provided on each roller of the roller pair, or the means to open and close the slit between the rolled pairs act upon one of the two rolls of a roller pair, and wherein the other roll of said rolled pair is fixed.
  • the invention is also embodied in a method of rinsing a metal strip using the apparatus according to the invention.
  • FIG 1 schematically shows a typical state-of-the-art rinsing apparatus in a continuous metal strip processing line.
  • the process tank is representative for the type of processing performed in the line. It may be a pickling process, a plating process, a cleaning process, a passivation process, or the like.
  • the processing as such is not particularly limited.
  • the metal strip After emerging from the process tank the metal strip may retain on its surface a layer of the liquid which it is desirable to remove.
  • the metal strip is subsequently led to a sequence of (in this example 3) rinsing tanks (Rinse 1, Rinse 2, Rinse 3).
  • the rinse liquid which is water in this example, is introduced in the circulation tanks in counterflow to the direction of travel of the metal strip, so that the metal strip emerging from the process tank is rinsed with water that has already been used in Rinse 2 and Rinse 3. Waste water is extracted from the circulation tank connected to Rinse 1. Fresh water is introduced into the circulation tank connected to Rinse 3.
  • the system in this schematic drawing requires large rinsing tanks, circulation tanks, pumps, level controls, valves, pipes and is complicated to build, maintain and is therefore costly and susceptible to malfunction if not properly maintained.
  • FIG. 2 shows a schematic drawing of the rinsing apparatus according to the invention.
  • a cut out is shown at the right of the drawing showing more detail of the apparatus.
  • the (N-l) th roller pair and the (N-2) nd and (N-3) rd roller pair only the left one is shown.
  • the rotation direction of the rollers is also shown.
  • the rotation of the rolls may be provided by external means, or it may be provided by the metal strip driven through the apparatus.
  • the process tank 6 as part of the continuous metal processing line is shown Also the means for introducing the rinse liquid 4 are shown.
  • Fresh rinse liquid in this case water, is introduced between the (N-l) th roller pair and the (N-2) nd roller pair.
  • the amount of water introduced ensures that a cushion of water is formed on the metal strip.
  • This water is subsequently transported by the (N- 2) nd roller pair to the metal strip between the (N-2) nd and (N-3) rd roller pair and rinses the metal strip.
  • the water As the water has already been used to rinse the metal strip the water is not fresh water anymore, but still cleaner than the layer of liquid adhering to the metal strip surface.
  • the waste water having cascaded down the rinsing apparatus this way, and becoming more and more polluted can be collected by collection means and transported away for processing in a waste water facility.
  • the collection means are also shown schematically in the drawing.
  • the waste liquid may also (partly) be discarded in the process tank and (for instance) serve to reuse the washed-off electrolyte in case the process tank is a plating tank containing plating electrolyte, or dilute the liquid in the process tank to compensate for losses due to evaporation.
  • Figure 3 shows the set-up of the rinsing apparatus wherein the uppermost pair (only one of each pair or rollers is drawn for clarity) of rollers are drying rolls, in this example squeegee rolls, so that the metal strip exiting this pair of rollers is dry.
  • the rinse liquid is sprayed onto the metal strip between the second and third roller.
  • the bottom two rolls allow the cascading down of the rinse liquid, in counter-current flow to the metal strip to be rinsed.
  • the rotational speed of the rolls is such that the rinse liquid clings to the rolls.
  • an encapsulating shield 5 is provided that encapsulates the rinse liquid while it is transported down.
  • Figure 4 shows the schematics of the set-up and shows the different variables that play a role in the functioning of this rinsing apparatus.

Landscapes

  • 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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

La présente invention concerne un appareil de rinçage destiné à être utilisé dans une ligne de traitement de bande métallique et un procédé d'utilisation dudit appareil de rinçage.
PCT/EP2020/083825 2019-12-03 2020-11-30 Appareil de rinçage et son utilisation WO2021110567A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES20812340T ES2974987T3 (es) 2019-12-03 2020-11-30 Aparato de enjuague y uso del mismo
PL20812340.6T PL4069886T3 (pl) 2019-12-03 2020-11-30 Urządzenie płuczące i jego zastosowanie
EP20812340.6A EP4069886B1 (fr) 2019-12-03 2020-11-30 Appareil de rinçage et son utilisation
RS20240374A RS65350B1 (sr) 2019-12-03 2020-11-30 Uređaj za ispiranje i njegova primena

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19213215.7 2019-12-03
EP19213215 2019-12-03

Publications (1)

Publication Number Publication Date
WO2021110567A1 true WO2021110567A1 (fr) 2021-06-10

Family

ID=68766659

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/083825 WO2021110567A1 (fr) 2019-12-03 2020-11-30 Appareil de rinçage et son utilisation

Country Status (5)

Country Link
EP (1) EP4069886B1 (fr)
ES (1) ES2974987T3 (fr)
PL (1) PL4069886T3 (fr)
RS (1) RS65350B1 (fr)
WO (1) WO2021110567A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB433289A (en) * 1932-11-11 1935-08-12 Claus Busse An improved washing machine for pickled material in the form of strip or wire
KR20040037348A (ko) * 2002-10-28 2004-05-07 주식회사 포스코 스트립 소둔라인의 수직형 탈지설비
WO2007116775A1 (fr) * 2006-03-31 2007-10-18 Fujifilm Corporation Appareil de lavage, dispositif servant à fabriquer une bande revêtue, procédé de lavage et procédé servant à fabriquer une bande revêtue

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB433289A (en) * 1932-11-11 1935-08-12 Claus Busse An improved washing machine for pickled material in the form of strip or wire
KR20040037348A (ko) * 2002-10-28 2004-05-07 주식회사 포스코 스트립 소둔라인의 수직형 탈지설비
WO2007116775A1 (fr) * 2006-03-31 2007-10-18 Fujifilm Corporation Appareil de lavage, dispositif servant à fabriquer une bande revêtue, procédé de lavage et procédé servant à fabriquer une bande revêtue

Also Published As

Publication number Publication date
RS65350B1 (sr) 2024-04-30
EP4069886B1 (fr) 2024-01-03
EP4069886A1 (fr) 2022-10-12
ES2974987T3 (es) 2024-07-02
PL4069886T3 (pl) 2024-05-13

Similar Documents

Publication Publication Date Title
US3938214A (en) Cascade rinsing system and method
EP1952427B2 (fr) Dispositif et procédé pour le traitement chimique par voie humide de substrats plats et minces en continu
US20060231118A1 (en) Tape cleaning device and tape cleaning method
CN103817093A (zh) 一种去除高分子薄膜表面粉尘的设备
GB2031036A (en) Liquid Treatment of Metal Strip
EP4069886B1 (fr) Appareil de rinçage et son utilisation
US3109439A (en) Paint stripping system
JP2012179522A (ja) 線条材の洗浄乾燥装置
US4170488A (en) Environmental, small-part continuous washing process
JP3218796B2 (ja) 金属帯の液切装置
DE112010003101T5 (de) Verfahren zur Oberflächenbehandlung eines Wafers
DE2056571A1 (de) Verfahren und Vorrichtung zur Ent fernung von Staub von der Oberflache einer Bahn
JP7441023B2 (ja) 被処理体の処理方法及び処理装置
JP3498220B2 (ja) 写真材料のための液体ワイパー
EP0836370A1 (fr) Procédé et dispositif de gravure de substrats pour panneaux à circuits imprimé
CN111167660A (zh) 玻璃保护油滚涂设备和玻璃保护油滚涂方法
JPH0494816A (ja) テンションレベラにおけるストリップのスケール除去方法
AT217268B (de) Verfahren zur kontinuierlichen Oberflächenbehandlung eines biegsamen Bandes beliebiger Breite, insbesondere eines Metallbandes
JP2003303807A (ja) 基板の処理装置及び処理方法
US2115471A (en) Method of finishing grained planographic plates
JPS6215611B2 (fr)
CN106842831A (zh) 一种显影喷嘴装置
JP6515295B2 (ja) ロールの洗浄方法及びロール洗浄装置
JP3334785B2 (ja) 方向性電磁鋼板の製造に用いる金属ストリップのレジスト剥離設備列
CN117888118A (zh) 一种高效宽幅微米级精密合金箔材的表面清洗装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20812340

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020812340

Country of ref document: EP

Effective date: 20220704

WWE Wipo information: entry into national phase

Ref document number: P-2024/0374

Country of ref document: RS