EP0765953B1 - Strip treating apparatus - Google Patents

Strip treating apparatus Download PDF

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Publication number
EP0765953B1
EP0765953B1 EP95918766A EP95918766A EP0765953B1 EP 0765953 B1 EP0765953 B1 EP 0765953B1 EP 95918766 A EP95918766 A EP 95918766A EP 95918766 A EP95918766 A EP 95918766A EP 0765953 B1 EP0765953 B1 EP 0765953B1
Authority
EP
European Patent Office
Prior art keywords
electrode
strip
electrodes
holders
opening
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.)
Expired - Lifetime
Application number
EP95918766A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0765953A4 (enrdf_load_stackoverflow
EP0765953A1 (en
Inventor
Tadashi Toyo Kohan Co. Ltd. FUJII
Eiichiro Toyo Kohan Co. Ltd. SUGIOKA
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.)
Toyo Kohan Co Ltd
Original Assignee
Toyo Kohan Co Ltd
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 JP06134970A external-priority patent/JP3073653B2/ja
Priority claimed from JP15660394A external-priority patent/JP2942146B2/ja
Priority claimed from JP07053325A external-priority patent/JP3073662B2/ja
Application filed by Toyo Kohan Co Ltd filed Critical Toyo Kohan Co Ltd
Priority to EP99202743A priority Critical patent/EP1029951B1/en
Priority to EP99202742A priority patent/EP1029950B1/en
Publication of EP0765953A1 publication Critical patent/EP0765953A1/en
Publication of EP0765953A4 publication Critical patent/EP0765953A4/xx
Application granted granted Critical
Publication of EP0765953B1 publication Critical patent/EP0765953B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating

Definitions

  • the present invention relates to an apparatus for treating a strip such as a steel strip, for example, a plating apparatus, a cleaning apparatus and the like, and especially to a strip treating apparatus in which homopolar electrodes as anodes or cathodes are arranged so as to face to each other in a bath tank, and a strip is travelled between these electrodes.
  • the first problem which relates to a mechanism for adjusting the distance between the electrodes.
  • the distance between the electrodes is extremely short.
  • Use of the electrodes stationarily arranged thus makes it impossible to pass a rope between the electrodes, which is to be used for passing the strip through the strip treating apparatus prior to the start thereof.
  • the connecting portion of the strips by means of a welding and so on has a relatively large thickness. It has therefore been considered at the time of development of the apparatus that the above-mentioned connecting portion would be in contact with the stabilizer to cause the breakage thereof. For these reasons, there has been required a mechanism for opening and closing the electrodes.
  • a treating solution such as a plating solution is filled in a vertical-pass type bath tank 1 as shown in Fig. 5.
  • electrodes 2 there may be used one of anodes and cathodes, or electrodes which are changeable into anodes or cathodes.
  • the upper portions of the respective electrodes 2 are supported by means of upper electrode-holders 3.
  • pneumatic cylinders 4 for opening and closing the upper portions of the electrodes.
  • the lower portions of the respective electrodes 2 are supported by means of lower electrode-holders 5.
  • cams 6 for opening and closing the lower portions of the electrodes. The opening or closing of the electrodes is carried out by operating all of the pair of pneumatic cylinders 4 and the pair of cams 6 for each electrode.
  • Both of the electrodes are movable in this manner.
  • the strip treating apparatus was attempted to be mounted on the conventional bath tank 1 in which there could not be prepared the above-mentioned space, there has been a problem of necessity of modifying the bath tank 1.
  • the operating members for the cams 6 for opening and closing the lower portions of the electrodes 2 have necessarily been arranged so as to project outside from the side wall of the bath tank 1, and more specifically, holes for these operating members have necessarily been formed in the bath tank 1, thus leading to a problem of leakage of the bath.
  • a strip treating apparatus such as a plating apparatus or a cleaning apparatus, which has an opening and closing mechanism for electrodes, which is able to be secured to a small-sized bath tank designed as a facility having the irreducible minimum scale of a demand, or the conventional bath tank, and in which mechanism a leakage of a bath is prevented.
  • all of operating members of the opening and closing mechanism are preferably positioned above the surface of a bath in the bath tank.
  • the opening and closing mechanism may comprise a pair of electrode holders positioned on both end portions of the other electrode, frame-shaped followers provided at the both end portions of the other electrode, cam shafts rotatably supported on the electrode holders, cams secured to both end portions of the cam shafts, and fitted into the frame-shaped followers, and operating members provided at one end portions of the cam shafts.
  • the opening and closing mechanism may comprise a bus bar connected to an upper end of the other electrode, upper electrode-holders positioned on an upper end portion of the other electrode, a sliding system for slidably supporting the bus bar on the upper electrode-holders, and a linear-type actuator for sliding the bus bar on the sliding system.
  • One electrode of homopolar electrodes which are to be arranged so as to face to each other is arranged at a prescribed position, and stationarily secured thereto.
  • the other electrode is movably arranged at a prescribed position, and an opening and closing mechanism for the other electrode is provided.
  • the strip may slide on the insulators without being in contact with this electrode during the passing of the rope between the electrodes, which is to be used for passing the strip through the strip treating apparatus prior to the start thereof, thus preventing the contact of the strip with the electrode.
  • the insulators the stabilizers
  • the construction in which the electrode on the side of the wall of the tank is designed as the stationary electrode permits the use of a small-sized bath tank, since there is no need of preparing a space for moving the above-mentioned electrode, and also permits the application of the strip treating apparatus to a conventional bath tank which does not have such a space. Since the opening and closing mechanism provided only for the other electrode suffices, the cost of the opening and closing mechanism can be reduced by half.
  • the homopolar electrodes are arranged vertically so as to face to each other in the bath tank, it is possible to release the necessity of forming holes for operating members of the opening and closing mechanism in the wall of the bath tank and of arranging the above-mentioned operating members so as to project outside from these holes, by arranging all of the operating members of the opening and closing mechanism above the surface of the bath in the bath tank, resulting in prevention of leakage of the bath, and prevention of the damage of the operating members caused by the immersion of the operating members in the bath.
  • the operating members mean portions which generate the force for operating the opening and closing mechanism, they mean portions to be operated by hands of an operator, if manually operated, and they mean portions which generate the operating force, i.e., operating portions of rotary-type actuators such as rotary-type cylinders, linear-type actuators such as pneumatic actuators, and the like, if automatically operated.
  • the opening and closing mechanism comprises camshafts rotatably supported on a pair of electrode holders, having cams secured thereto in respective positions of both end portions of the other electrode, and having the operating members at the respective end portions; and a pair of frame-shaped followers which are respectively secured onto the both end portions of the other electrode, and into which followers the cams of the cam shafts are respectively fitted. According to this construction, it is possible to compose the opening and closing mechanism in a small-size and in a simple construction. In addition, the both end portions of the other electrode are moved so as to be opened or closed by means of the cam shafts supported on the pair of electrode holders, thus securing the opening and closing operation.
  • the opening and closing mechanism comprises a sliding system provided between upper electrode-holders and a bus bar for the other electrode, and a linear-type actuator for sliding the other electrode on the sliding system.
  • a plating solution (not shown) is stored in a vertical-pass type bath tank 1, and anodes 2, 2 are vertically arranged face to face in the plating solution so that the upper end portions 2d, 2d of the anodes 2, 2 are located above the surface of the bath (not shown) in the bath tank 1, as shown in Fig. 1(a).
  • Insulators stabilizers
  • Each of the insulators has a slant face (not shown) inclined from the side of the electrode toward the strip in the travelling direction of the strip (i.e., in the downward direction in Fig. 1(a)).
  • a bus bar 2c is secured to the upper end of the electrode 2. An electric current is supplied through the bus bar 2c to the electrode.
  • One electrode 2a of the homopolar electrodes arranged so as to face to each other is stationarily secured. More specifically, upper electrode-holders 3 and lower electrode-holders 5 are secured in the bath tank 1 so that bus bar fitting portions 3a of the upper electrode-holders 3 and bus bar fitting portions 5a of the lower electrode-holders 5 are placed at the respective prescribed positions, the bus bars 2c respectively provided at the upper and lower ends of the one electrode 2a are fitted into the above-mentioned bus bar fitting portions 3a, 5a.
  • the one electrode 2a is arranged at a prescribed position and stationarily secured thereto in this manner.
  • the upper electrode-holders 3 are arranged above the surface of the bath in the bath tank 1.
  • the one electrode 2a may be stationarily secured in close proximity to the wall of the bath tank 1.
  • the upper bus bar 2c for the other electrode 2b is slidably mounted on the upper electrode-holders 3.
  • the other electrode 2b is therefore openable and closable relative to the one electrode 2a.
  • Stopper portions 3b, 5b for limiting the sliding position of the other electrode 2b under the closed condition are provided on the upper and lower electrode-holders 3, 5, respectively.
  • the operating members 20c are arranged above the surface of the bath in the bath tank 1.
  • Each of the cams 20b comprises a disc-shaped eccentric cam as shown in Fig. 1(b).
  • the manually operated lever 20c is turned to a position at right angle to the electrode, the other electrode 2b is moved and urged against the stopper portions 3b, 5b so as to set the other electrode in the closed position.
  • the manually operated lever 20c is turned to a position parallel to the electrode, the other electrode 2b is moved together with frame-shaped followers 20d described later so as to set the other electrode in the opened position.
  • the eccentricity of the cam 20b is previously determined so as to secure a prescribed distance between the electrodes, which permits the passing of a rope between them by only moving the other electrode.
  • the frame-shaped followers 20d are provided at the both end portions of the other electrode by securing these followers 20d to the bus bars 2c.
  • Each of the frame-shaped followers 20d has a rectangular space, and the short side of this rectangular space has a length substantially identical to the longer diameter of the cam 20b so that the cam 20b is fitted into the frame-shaped follower 20d.
  • the frame-shaped follower 20d follows the eccentric cam 20b to change its position.
  • a conducting drum 7 is arranged in the bottom portion of the bath tank 1.
  • the strip travelling between the pair of electrodes 2, 2 is stretched over the conducting drum 7 so as to change the travelling direction thereof.
  • the manually operated lever 20c is turned to a position parallel to the electrode (as shown by dotted lines in Fig. 1(b)).
  • the frame-shaped followers at the both of the upper end portions and the lower end portions of the other electrode move in the following action of the turning of the eccentric cams, to cause the other electrode to be set in the opened position.
  • the both of the upper end portions and the lower end portions of the other electrode are moved, thus ensuring the opening and closing.
  • the opening and closing operation can easily be conducted by only turning the manually operated levers 20c arranged above the surface of the bath in the bath tank.
  • the one electrode is stationarily secured at the prescribed closed position, as mentioned above. Since the insulators (the stabilizers) are provided on this electrode, the strip may slide on the insulators without being in contact with this electrode during the passing of the rope between the electrodes in the strip treating apparatus prior to the start thereof, thus preventing the contact of the strip with the electrode. In this stage, the insulators (the stabilizers) are not damaged or broken, since the strip is not tensed.
  • the strip After the completion of the work of passing through the rope between the electrodes in the strip treating apparatus prior to the start thereof, the strip is stretched over the conducting drum 7 so as to change the travelling direction thereof. Then, the manually operated lever 20c is turned to a position at right angle to the electrode (as shown by solid lines in Fig. 1(b)) As a result, the frame-shaped followers 20d move in the following action of the turning of the eccentric cams in a direction opposite to that in the above-described opening operation, to cause the other electrode to be set in the closed position. When the other electrode is in contact with the stopper portions 3b, 5b, the closing operation is completed.
  • the closing condition of the other electrode can be firmly maintained by urging the bus bars 2c against the stopper portions 3b,5b by means of the eccentric cams 20b.
  • Each of the manually operated levers has a prescribed length so that it can be turned by a small force under the action of leverage.
  • the strip is subjected to the plating treatment at a high current density.
  • the other electrode 2b is again moved to its opened position to pass through the above-mentioned weld-connected portion between the electrodes, and then, the plating treatment is carried out at a high current density in the same manner as mentioned above, if necessary.
  • the manually operated levers can be substituted by automatically operating means.
  • a rotary cylinder 20f for turning the cam shaft 20a is for example provided at the upper end of each of the cam shafts 20a as shown in Fig. 2.
  • the rotary cylinder 20f is arranged above the surface of the bath in the bath tank 1, thus making it possible to prevent the rotary cylinder 20f having electric circuits being exposed to the treating solution such as a plating solution in the bath tank 1.
  • the other electrode 2b is slidably arranged on the upper electrode-holders 3 so as to be openable and closable.
  • a pneumatic cylinder 21f as the opening and closing mechanism is fixed to each of the upper electrode-holders 3. More specifically, the free end of the operating shaft 21a of each of the pneumatic cylinders 21f is secured to each of the both end portions of the upper bus bar 2c for the other electrode 2b.
  • a vertical shaft21b is firmly connected to the middle portion of the operating shaft 21a of each of the pneumatic cylinders 21f. The lower end portion of each of the vertical shafts 21b is bent at right angles to form a horizontal portion 21c.
  • each of the vertical shafts 21b is secured to each of the both end portions of the lower bus bar 2c for the other electrode 2b.
  • the above-mentioned pneumatic cylinders 21f serve as automatically operating means. Stopper portions 3b, 5b for limiting the sliding position of the other electrode 2b under the closed condition are provided on the upper and lower electrode-holders 3, 5, respectively.
  • the frictional force on the sliding face can be further decreased.
  • a sliding system as shown in Fig. 4, which comprises an LM guide member 22a secured on the upper electrode-holder 3 between the upper electrode-holder 3 and the upper bus bar 2c for the other electrode 2b; and a fitting member 22b secured to the upper bus bar 2c, into which the above-mentioned LM guide member 22a is fitted.
  • the linear actuator 22c comprising the pneumatic cylinder is fixed to the upper electrode-holders 3, and the free end of the operating shaft 22d of the linear actuator 22c is secured to the upper bus bar 2c.
  • the other electrode can be opened or closed by the operation of small-sized pneumatic cylinders.
  • the other electrode can be moved without swinging, resulting in relief of the necessity of providing the vertical shafts for connecting the operating shafts 22d with the lower portions of the other electrode, thus simplifying the opening and closing mechanism.
  • the preferred embodiment is applied to the plating apparatus in the above-described embodiment.
  • the preferred embodiment can also be applied to the other strip treating apparatus, for example, a cleaning apparatus in which impurities adhered on the surface of the strip are electrolytically removed in an alkaline treating solution.
  • the electrodes serve as a cathode.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
EP95918766A 1994-05-24 1995-05-22 Strip treating apparatus Expired - Lifetime EP0765953B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99202743A EP1029951B1 (en) 1994-05-24 1995-05-22 Strip treating apparatus
EP99202742A EP1029950B1 (en) 1994-05-24 1995-05-22 Strip treating apparatus

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP13497094 1994-05-24
JP06134970A JP3073653B2 (ja) 1994-05-24 1994-05-24 ストリップ処理装置
JP134970/94 1994-05-24
JP15660394 1994-06-14
JP15660394A JP2942146B2 (ja) 1994-06-14 1994-06-14 メッキ装置及びクリーニング装置
JP156603/94 1994-06-14
JP07053325A JP3073662B2 (ja) 1995-02-17 1995-02-17 めっき装置及びクリーニング装置
JP53325/95 1995-02-17
JP5332595 1995-02-17
PCT/JP1995/000982 WO1995032322A1 (fr) 1994-05-24 1995-05-22 Appareil pour le traitement d'une bande

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP99202742A Division EP1029950B1 (en) 1994-05-24 1995-05-22 Strip treating apparatus
EP99202743A Division EP1029951B1 (en) 1994-05-24 1995-05-22 Strip treating apparatus

Publications (3)

Publication Number Publication Date
EP0765953A1 EP0765953A1 (en) 1997-04-02
EP0765953A4 EP0765953A4 (enrdf_load_stackoverflow) 1997-04-23
EP0765953B1 true EP0765953B1 (en) 2002-10-02

Family

ID=27294911

Family Applications (3)

Application Number Title Priority Date Filing Date
EP99202743A Expired - Lifetime EP1029951B1 (en) 1994-05-24 1995-05-22 Strip treating apparatus
EP95918766A Expired - Lifetime EP0765953B1 (en) 1994-05-24 1995-05-22 Strip treating apparatus
EP99202742A Expired - Lifetime EP1029950B1 (en) 1994-05-24 1995-05-22 Strip treating apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99202743A Expired - Lifetime EP1029951B1 (en) 1994-05-24 1995-05-22 Strip treating apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP99202742A Expired - Lifetime EP1029950B1 (en) 1994-05-24 1995-05-22 Strip treating apparatus

Country Status (8)

Country Link
EP (3) EP1029951B1 (enrdf_load_stackoverflow)
KR (1) KR100297274B1 (enrdf_load_stackoverflow)
CN (2) CN1122121C (enrdf_load_stackoverflow)
AU (1) AU697938B2 (enrdf_load_stackoverflow)
CA (1) CA2191225C (enrdf_load_stackoverflow)
DE (3) DE69532421T2 (enrdf_load_stackoverflow)
ES (2) ES2214810T3 (enrdf_load_stackoverflow)
WO (1) WO1995032322A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW592859B (en) * 2001-09-11 2004-06-21 Ebara Corp Electrolytic processing apparatus and method
DE102009060937A1 (de) * 2009-12-22 2011-06-30 Siemens Aktiengesellschaft, 80333 Verfahren zum elektrochemischen Beschichten
CN104419974B (zh) * 2013-08-19 2017-06-16 柳广德 供成捆不锈钢线可连续进行电浆抛光及降低表面粗糙度的装置方法
WO2015188597A1 (zh) * 2014-06-11 2015-12-17 上海梅山钢铁股份有限公司 一种模拟带钢不同线速度的连续电镀试验装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4518664Y1 (enrdf_load_stackoverflow) * 1966-12-14 1970-07-29
US4652346A (en) * 1984-12-31 1987-03-24 Olin Corporation Apparatus and process for the continuous plating of wide delicate metal foil
JPS61217596A (ja) * 1985-03-25 1986-09-27 Sumitomo Metal Ind Ltd 鋼帯の均一電気メツキ方法及びその装置
JPS62211399A (ja) * 1986-03-11 1987-09-17 Nippon Kokan Kk <Nkk> 合金電気鍍金用電解槽
JPS63303100A (ja) * 1987-06-03 1988-12-09 Mitsubishi Heavy Ind Ltd 帯鋼連続処理設備
JPH01306596A (ja) * 1988-06-06 1989-12-11 Eagle Ind Co Ltd 鍍金装置

Also Published As

Publication number Publication date
ES2210968T3 (es) 2004-07-01
EP1029951A3 (en) 2000-12-06
KR100297274B1 (ko) 2001-08-07
DE69528458T2 (de) 2003-06-05
DE69532421D1 (de) 2004-02-12
EP1029950B1 (en) 2004-01-07
ES2214810T3 (es) 2004-09-16
DE69532422D1 (de) 2004-02-12
CN1515704A (zh) 2004-07-28
CN1276132C (zh) 2006-09-20
EP1029951B1 (en) 2004-01-07
CA2191225A1 (en) 1995-11-30
CN1148873A (zh) 1997-04-30
DE69528458D1 (de) 2002-11-07
EP0765953A4 (enrdf_load_stackoverflow) 1997-04-23
AU697938B2 (en) 1998-10-22
AU2455795A (en) 1995-12-18
DE69532421T2 (de) 2004-11-11
EP0765953A1 (en) 1997-04-02
CA2191225C (en) 2003-11-04
WO1995032322A1 (fr) 1995-11-30
EP1029950A3 (en) 2000-12-06
CN1122121C (zh) 2003-09-24
EP1029950A2 (en) 2000-08-23
DE69532422T2 (de) 2004-12-02
KR970702940A (ko) 1997-06-10
EP1029951A2 (en) 2000-08-23

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