EP0072969B1 - Vorrichtung zum galvanischen Abscheiden von Aluminium - Google Patents

Vorrichtung zum galvanischen Abscheiden von Aluminium Download PDF

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Publication number
EP0072969B1
EP0072969B1 EP82107245A EP82107245A EP0072969B1 EP 0072969 B1 EP0072969 B1 EP 0072969B1 EP 82107245 A EP82107245 A EP 82107245A EP 82107245 A EP82107245 A EP 82107245A EP 0072969 B1 EP0072969 B1 EP 0072969B1
Authority
EP
European Patent Office
Prior art keywords
workpiece carriers
individual cells
transport means
anode plates
lock
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
Application number
EP82107245A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0072969A2 (de
EP0072969A3 (en
Inventor
Siegfried Dr. Birkle
Johann Gehring
Klaus Stöger
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT82107245T priority Critical patent/ATE13698T1/de
Publication of EP0072969A2 publication Critical patent/EP0072969A2/de
Publication of EP0072969A3 publication Critical patent/EP0072969A3/de
Application granted granted Critical
Publication of EP0072969B1 publication Critical patent/EP0072969B1/de
Expired 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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/42—Electroplating: Baths therefor from solutions of light metals
    • C25D3/44—Aluminium

Definitions

  • the invention relates to a device for the galvanic deposition of aluminum from aprotic, oxygen-free and water-free, organoaluminum electrolytes, with a gaivanizing trough which is sealed off from the outside and can be acted upon with a protective gas, a movable contacting and holding device for goods carriers arranged within the gaivanizing trough a charging lock consisting of antechamber, liquid lock and main chamber can be conveyed into the electroplating trough by means of transport means and can be transferred to the contacting and holding device and which preferably also consists of a decoupling lock consisting of prechamber, liquid lock and main chamber with the aid of further transport means from the contacting and Holding device are removable and can be transported out of the electroplating trough.
  • a device has become known in which a lock system with a liquid lock is used to insert and remove the goods to be electroplated.
  • the goods to be electroplated are housed on a goods carrier, which is introduced with the help of an endless conveyor belt from an antechamber that can be flooded with inert gas via the liquid lock into the galvanizing trough and, after the galvanizing process, is again removed in the opposite direction using the same conveyor belt.
  • a disadvantage of this known device is that the electrolyte is carried away considerably from the electrolyte trough into the liquid lock.
  • a charging lock be provided for introducing the product carriers and a decharging gate for deploying the product carriers.
  • a known galvanizing trough with an annularly closed galvanizing trough is used, in which a large number of product carriers can be accommodated at the same time.
  • the electroplating trough contains a contacting and holding device that can be rotated about a vertical axis of rotation, with support arms for the goods carriers rotating in a horizontal plane. Due to the annular design of the electrolyte trough, the product carriers can travel in a circular orbit through the electrolyte.
  • the ring-shaped design of the electrolyte trough enables the spatial separation of loading and unloading of the goods carriers via the charging and decharging lock, so that the individual support arms can be loaded and emptied at the same time without interruption.
  • the goods-carrying goods carriers are introduced into the electroplating trough from the preliminary lock flooded with inert gas, via the U-shaped liquid lock and the main chamber filled with inert gas, where they are automatically delivered to the support arms of the contacting and holding device. After the electroplating, the goods carriers are then automatically removed from the supporting arms of the contacting and holding device with the aid of another endless chain conveyor and conveyed out via the liquid lock and pre-lock.
  • the invention has for its object to provide a device of the type described above, which is much simpler in construction than the devices described and which can be enlarged or expanded practically without significant additional effort to increase the throughput.
  • This object is achieved according to the invention in that the Gaivanisierwanne is divided into several identical single cells with a rectangular cross section, which are arranged one behind the other in such a way that the goods carriers can be inserted and removed from a means of transport assigned to all individual cells and that the charging and decharging lock in Row with the individual cells are arranged.
  • the subdivision into individual cells has the essential advantage that the aluminizing device can be built up in a modular system, ie can be expanded practically as desired, whereby the individual cells can preferably be designed to be suitable for containers. Since each individual cell forms a self-contained system, the storage for the electrolyte practically only needs to be designed for the content of an individual cell. In the event of any malfunctions in a single cell, the entire system does not need to be shut down; a bath shutdown is sufficient. Another advantage is that the individual baths can be operated with different current intensities, whereby there can be no mutual interference between the baths. It is even possible to work with different electrolytes in the individual cells, with the conditions regarding heating and cooling these can be adjusted accordingly. - Compared to a ring cell there is a further significant advantage that the device does not require any rotating parts that not only require considerable effort, but also require constant maintenance.
  • the width of the anode plates arranged on both sides of the article carriers preferably corresponds approximately to the width of the article carriers, the anode plates with the transport means assigned to the article carriers being insertable into the individual cells of the electroplating trough and being removable according to consumption.
  • the carrying and contacting devices for the goods carriers located in the individual cells can be periodically moved back and forth parallel to the anode plates by a preferably adjustable stroke.
  • a preferably adjustable stroke In this way, the advantages of a ring cell are achieved even in the case of a galvanizing trough divided into rectangular individual cells, in which the goods carriers are periodically moved back and forth relative to the anode plates to enable the current density to be increased.
  • an additional anode plate is provided in series with the anode plates assigned to the product carriers, the width of which corresponds to the maximum stroke of the product carriers in the individual cell.
  • this means of transport are provided with additional lifting means so that the replacement of all the anode plates in a row can be carried out simultaneously.
  • the transport means for inserting and removing the product carriers into and out of the individual cells of the galvanizing trough are preferably designed such that a plurality of product carriers can be conveyed into and out of the galvanizing trough simultaneously via the liquid lock of the charging and decharging lock.
  • the goods carriers can be introduced or removed into the liquid locks of the charging and decharging lock via input and export shafts designed as antechambers, that the goods carriers can preferably be simultaneously delivered to or removed from a means of transport running horizontally in the liquid locks and can be conveyed through the liquid sluices to exit or entry openings, to which the end hood, which acts as the main chamber, is connected in a gas-tight manner.
  • the end hood which acts as the main chamber, preferably serves as a condensation zone for the toluene evaporating from the electrolyte as a result of the current heat which occurs during the galvanizing process.
  • the side walls of the cover hood are provided with a cooling and u. U. are provided with a heating coil. Then there is also the possibility of keeping the temperature of the electrolyte in the individual cells relatively constant. No external heat exchangers with pump and evaporator are required for these purposes.
  • a condensation channel is arranged on the vertical walls of the main chamber, which ends above a washing bath which is arranged in series with the individual cells.
  • the excess rinsing toluene is expediently fed to the individual cells again via a level control, so that the total volume (electrolyte and toluene) remains largely constant.
  • the launching hood extending over this outlet and inlet openings of the liquid locks and over the individual cells has at least one horizontally movable transport carriage, on which movable hooks in the vertical direction for automatic removal or for receiving the in the Goods carriers or anode plates located in liquid locks are provided and that the goods carriers or anode plates can be brought over the individual cells of the electroplating tank to be loaded and positioned accordingly with the aid of the transport carriage.
  • the transport means are preferably driven by compressed air, so that no rotating motors are required which would have to be designed as ex-motors.
  • An electroplating trough 1 shown in FIG. 1 consists of individual cells 2 to 5, each of which can be a self-contained bath.
  • a further container 6 is provided which serves as a washing bath and can be filled with a liquid which is compatible with the electrolyte, for example toluene.
  • the dimensions of the container 6 essentially correspond to the dimensions of the individual cells 2 to 5 and in such a way that they practically form a container or at least part of the same.
  • the individual cells 2 to 5 and the container 6 are inserted in a support frame 7, preferably from above. As can be seen from FIGS. 1 and 2, the container 6 is not directly attached to the last individual cell 5, but rather while maintaining a free space 8.
  • This free space can be as large as desired, for example also so large that, if necessary, a further single cell in this can be accommodated.
  • the individual cells 2 to 5 and the container 6 for the washing bath are arranged one behind the other, so that the loading can take place with the aid of a single transport means in the form of a transport carriage 9 which can be moved on rails 10 with the aid of rollers 11, preferably with the aid of a Transport chain 12 with which the transport carriage 9 can be moved in the direction of arrow 13.
  • the free end of the transport chain 12 is brought out gas-tight from a cover 14 surrounding the electroplating trough 1.
  • the end cap 14 also serves to fasten the rails 10 for the trolley 9 and also extends over preferably closable inlet and outlet openings 15 and 16 of a charging lock 17 and decharging lock arranged in series with the individual cells 2 to 5 or the container 6 18.
  • the charging lock 17 has a trough 19-, in which a liquid compatible with the electrolyte of the individual cells 2 to 5, for. B. toluene 20 is located. The level of the liquid is indicated by a dashed line 21.
  • entry shafts 23 and 24 are provided, the lower ends of which are immersed in the liquid 20 and the upper ends of which are gas-tight.
  • an inert gas atmosphere for example N 2
  • N 2 an inert gas atmosphere
  • the goods carriers are introduced in pairs via the insertion shafts 23 and 24 and placed in corresponding receptacles 26 of a transport carriage 28 which can be moved in the trough 19 in the direction of the arrow 27 and which is closed by means of rollers 29 rails 30 arranged on both sides of the trough 19 of the charging lock 17 can be moved.
  • the movement of the transport carriage 28 is preferably carried out via a transport threaded spindle which can be driven by a compressed air motor, which is not shown in the drawing.
  • the insertion shafts 23 and 24 immersed in the liquid thus form a liquid lock for the goods carriers which are guided in the direction of arrows 25 through the insertion shafts 23 and 24 and placed on the receptacles 26 when the "transport carriage 28 is guided to below the preferably closable outlet opening 15 and the goods carriers are finally taken over by the transport carriage 9, which has hooks 31 corresponding to the receptacles 26, the spacing of which from one another corresponds to the spacing of the receptacles 26 on the transport carriage 28 and the central spacing of the insertion shafts 23 and 24.
  • the hooks 31 are attached to ropes 32 which are guided over rollers 33 of the transport carriage 9 and which are led out of the end cover 14 in a gas-tight manner running parallel to the transport chain 12.
  • the transport trolley 9 is moved over the outlet openings 15 and the goods carriers are removed by lowering the hooks 31 and pulled up again until the hooks 31 assume the position shown in FIG. 1, then the transport trolley 9 in the direction of the arrow 13 moved into the position shown in Figure 1, where the goods carriers are located above the outlet openings 16 of the decharging lock 18.
  • the Dechargierschleuse 18 also has a trough 34 which is gas-tight via a cover part 35 with the end cap 14 in connection.
  • This cover part 35 is provided with two export chutes 36 and 37, which also serve as antechambers, like the import chutes 23 and 24.
  • a transport carriage 40 is arranged, which can be moved with the aid of rollers 41 on support rails 42 arranged on both sides of the trough 34 and has receptacles 43 for goods carriers, not shown in the drawing, which in turn are in a are arranged at a distance from one another which corresponds to the distance between the receptacles 26 of the transport carriage 28.
  • the transport carriage 9 After this has been lifted out of the corresponding cells 2 to 5 with the help of the transport carriage 9 and has been immersed in the container 6 containing the washing bath and lifted out, the transport carriage 9 is moved into the position shown in FIGS. 1 and 2, in which position the goods carriers hanging on the hooks 31 are lowered into the trough 34 via the preferably closable inlet openings 16 and are delivered to the receptacles 43 of the dolly 40 shown in broken lines; then the transport carriage 40 is moved into the position shown with solid lines.
  • each of the cells 2 to 5 there are therefore a total of four goods carriers which are placed on a holding and contacting device (not shown in FIGS. 1 and 2).
  • the product carriers can be moved parallel to the anode plates.
  • the length of the individual cells 2 to 5 and that of the container 6 is not equal to twice the width of the goods carrier or the anode plates arranged on both sides of the latter, but rather by a size corresponding to the lifting movement.
  • further additional anode plates which take into account the width of the lifting movement of the goods carriers can be used in series with the anode plates corresponding to the goods carriers.
  • the relatively large cover 14 has the advantage that it can be used as a condensation zone. If the end cap 14 is additionally provided with heating or cooling, then it is possible to control the temperature of the individual baths by means of toluene evaporation of the electrolyte.
  • the condensate can reach the container 6 for the washing toluene via condensation troughs 47.
  • the condensation channels 47 are attached to both long sides of the end cover 14.
  • the container 6 can be connected to the baths of the individual cells 2 to 5 via a level compensation line.
  • FIGS. 3 to 5 show three views of the part of the device according to FIGS. 1 and 2 containing the individual cells 2 to 5 on an enlarged scale, the same parts being provided with the same reference numbers as before.
  • each frame-like product carriers 50 can be used in each self-contained individual cell 2 to 5, which can be suspended with their transport rod 501 in receptacles 51, which are fastened to cross members 52, which in turn are connected to one another via a support rod 53 .
  • the cross members 52 arranged at the two ends of the support rod 53 are fixedly connected to the drive elements 45, which, as has already been stated, are guided in the tubular guide element 46.
  • the drive elements 45 are connected to one another with a strut 54 and are periodically moved back and forth by a linear drive via a lifting rod 55.
  • This linear drive is preferably a pneumatic drive.
  • the four goods carriers 50 are moved parallel to the anode plates 56a to 56c arranged on both sides. While the anode plates 56a and 56b have the same width and approximately the same width as the plate-shaped article carriers 50, the width of the anode plate 56c corresponds to the lifting height of the contacting and holding device 51 to 53.
  • These parts are electrically conductive and project above the parts 45, 54 and 55 connected to the cathode of the power source.
  • the transport rod 501 of the goods carrier 50 is also in conductive connection with this and the substrates or parts to be galvanically fastened to it.
  • FIGS. 6 and 7 show, on an enlarged scale, the attachment of the busbar 57 in a corner of the wall 58 of a cell with the aid of insulation bodies 59 and 60, which are fastened in a corner by means of an angular support profile 61.
  • the anode plate 56 stands over two brackets 62 with the continuous busbar 57 in connection. If it is lowered from one with the help of the trolley 9 in the appropriate place, the hooks nig grab the busbar 57. Since the hanging on the hook 31 goods carrier 50 or Anowenplatten 56 are set in motion when braking into the intended position when braking can, 9 frame guides 63 are provided on the trolley, which are designed so that they prevent the goods carrier 50 and the anode plates 56 from swinging with certainty.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Materials For Medical Uses (AREA)
  • Dental Preparations (AREA)
  • Laminated Bodies (AREA)
  • Electrolytic Production Of Metals (AREA)
EP82107245A 1981-08-21 1982-08-10 Vorrichtung zum galvanischen Abscheiden von Aluminium Expired EP0072969B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82107245T ATE13698T1 (de) 1981-08-21 1982-08-10 Vorrichtung zum galvanischen abscheiden von aluminium.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3133162A DE3133162C2 (de) 1981-08-21 1981-08-21 Vorrichtung zum galvanischen Abscheiden von Aluminium
DE3133162 1981-08-21

Publications (3)

Publication Number Publication Date
EP0072969A2 EP0072969A2 (de) 1983-03-02
EP0072969A3 EP0072969A3 (en) 1983-04-20
EP0072969B1 true EP0072969B1 (de) 1985-06-05

Family

ID=6139835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107245A Expired EP0072969B1 (de) 1981-08-21 1982-08-10 Vorrichtung zum galvanischen Abscheiden von Aluminium

Country Status (13)

Country Link
US (1) US4425211A (no)
EP (1) EP0072969B1 (no)
JP (1) JPS5837197A (no)
AT (1) ATE13698T1 (no)
CA (1) CA1178555A (no)
CS (1) CS254961B2 (no)
DD (1) DD202461A5 (no)
DE (2) DE3133162C2 (no)
DK (1) DK155752C (no)
FI (1) FI70603C (no)
HU (1) HU188197B (no)
NO (1) NO157107C (no)
SU (1) SU1175362A3 (no)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231855A1 (de) * 1982-08-26 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zum galvanischen abscheiden von aluminium
US4663014A (en) * 1986-01-02 1987-05-05 I. Jay Bassett Electrodeposition coating apparatus
US4755273A (en) * 1986-01-02 1988-07-05 Bassett I Jay Cover for coating tanks
US4759831A (en) * 1986-07-04 1988-07-26 Siemens Aktiengesellschaft Electroplating apparatus particularly for electro-deposition of aluminum
FI107740B (fi) * 1998-09-30 2001-09-28 Outokumpu Oy Elektrodien poikittaissiirrin
EP1510600A1 (de) * 2003-08-26 2005-03-02 Aluminal Oberflächtentechnik GmbH & Co. KG Verfahren und Vorrichtung zum Abscheiden von Metallen und Metalllegierungen aus Metallorganischen Elektrolyten
DE102004032659B4 (de) * 2004-07-01 2008-10-30 Atotech Deutschland Gmbh Vorrichtung und Verfahren zum chemischen oder elektrolytischen Behandeln von Behandlungsgut sowie die Verwendung der Vorrichtung
CN100595348C (zh) * 2008-03-19 2010-03-24 苏州市荣丰化工环保设备有限公司 阳极箱
CN103510146B (zh) * 2013-10-31 2016-04-20 广东保迪环保电镀设备有限公司 铝长件和普通件复合电镀生产线

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115116B2 (no) * 1973-03-12 1976-05-14
JPS50107711U (no) * 1974-02-13 1975-09-03
JPS5115116U (no) * 1974-07-19 1976-02-03
DE2719680A1 (de) * 1977-05-03 1978-11-09 Montblanc Simplo Gmbh Anlage zum aluminieren
JPS60512Y2 (ja) * 1978-08-21 1985-01-09 日産デイ−ゼル工業株式会社 ブレ−キ冷却装置
DE2901586A1 (de) * 1979-01-17 1980-07-31 Montblanc Simplo Gmbh Aluminierzelle
DE3044975C2 (de) * 1980-11-28 1985-10-31 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zum galvanischen Abscheiden von Aluminium

Also Published As

Publication number Publication date
JPS6142799B2 (no) 1986-09-24
DE3133162C2 (de) 1984-08-02
DK155752B (da) 1989-05-08
DE3264046D1 (en) 1985-07-11
NO157107B (no) 1987-10-12
SU1175362A3 (ru) 1985-08-23
JPS5837197A (ja) 1983-03-04
FI822899A0 (fi) 1982-08-20
CA1178555A (en) 1984-11-27
EP0072969A2 (de) 1983-03-02
DK155752C (da) 1989-09-25
DD202461A5 (de) 1983-09-14
DE3133162A1 (de) 1983-04-07
FI70603C (fi) 1986-09-24
HU188197B (en) 1986-03-28
NO157107C (no) 1988-01-20
ATE13698T1 (de) 1985-06-15
EP0072969A3 (en) 1983-04-20
US4425211A (en) 1984-01-10
FI822899L (fi) 1983-02-22
DK374482A (da) 1983-02-22
CS254961B2 (en) 1988-02-15
FI70603B (fi) 1986-06-06
NO822202L (no) 1983-02-22

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