EP0403362B1 - Current conducting roll - Google Patents
Current conducting roll Download PDFInfo
- Publication number
- EP0403362B1 EP0403362B1 EP90401612A EP90401612A EP0403362B1 EP 0403362 B1 EP0403362 B1 EP 0403362B1 EP 90401612 A EP90401612 A EP 90401612A EP 90401612 A EP90401612 A EP 90401612A EP 0403362 B1 EP0403362 B1 EP 0403362B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fact
- roller
- copper
- roller according
- steel
- 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
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 229910052802 copper Inorganic materials 0.000 claims description 23
- 239000010949 copper Substances 0.000 claims description 23
- 238000004070 electrodeposition Methods 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical group [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000000576 coating method Methods 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- 230000007704 transition Effects 0.000 description 7
- 241000722921 Tulipa gesneriana Species 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- C25D7/0614—Strips or foils
- C25D7/0657—Conducting rolls
Definitions
- the present invention relates to the field of current conducting rollers, in particular but not exclusively rollers for continuous electrolysis lines.
- This roller essentially comprises a cylindrical central part 12 of revolution which constitutes the main active part of the roller involved in the electrolysis, this central part is generally called “table” of the roller, and two half-shafts 14, 16 respectively arranged on the side and on the other side of the central part 12 and coaxial with it.
- the half-shafts 14, 16 have a diameter smaller than that of the central part. They fulfill a double function: guiding the rotating roller on the one hand, and supplying the roller with current on the other.
- rollers are traversed by an axial channel 18 allowing circulation of cooling water.
- rollers are most often formed of a body 20 of steel provided with an external coating 30 of copper, ensuring in particular the function of collector.
- the steel body 20 is itself generally formed by a central cylindrical sleeve 22 of revolution fitted onto two coaxial steel half-shafts 26, and welded by its ends, at 24, thereon.
- ring 40 serving as a seal support on each half-shaft 14, 16.
- the copper coating is generally formed by electrodeposition.
- the production of the copper coating 30 is very delicate to implement, very long and expensive, taking into account the thicknesses imposed by the required amperages, generally between 12,000 and 18,000 amperes.
- Document DE-A-1803977 describes a current conducting roller comprising a copper element forming a collector, coated over a part of its length by a steel element, for the ends.
- the roller comprises a steel-carbon core connected to the steel support by steel rings, an internal copper coating connected to the element by a ring and an external chrome coating.
- the object of the present invention is to propose a new current conducting roller which totally eliminates the drawbacks of the prior art.
- the internal copper hoop is protected by a sheath, for example made of stainless steel.
- the axis of the roller 100 shown in FIG. 3 is referenced 101.
- the roller 100 comprises a central cylindrical part 112 of revolution, of larger diameter, which constitutes the main active part of the roller or table, and two half-shafts, of which only the half-shaft 116 appears in FIG. 3, which extend respectively on either side and coaxially the central part 112.
- the roller 100 is composed of a steel body 120 and two internal copper frets, 130.
- the steel body 120 is preferably itself formed by a central cylindrical sleeve of revolution 122 welded at its ends, respectively on stepped half-shafts 126, also made of steel. It will be noted that, unlike the prior art, the sleeve 122 is not fitted onto the half-shafts 126, but only welded at the end to these by annular beads 124.
- the half-shafts 126 each have a through axial channel.
- the particular geometry of the half-shafts 126 can be the subject of numerous embodiments and will therefore not be described in detail below. It will be noted that the stepped section of the half-shafts 126 is increasing, from the end part forming a manifold towards the central part 112.
- each half-shaft 126 comprises an axially external part 125, an axially internal part 123 and a transition zone 128 between them.
- the axially external part 125 is formed by a succession of cylindrical portions of increasing section towards the table 112. It has an internal surface, cylindrical of revolution around the axis 101, of constant diameter, referenced 127.
- the axially internal part 123 is more flared than the axially external part 125.
- the axially internal part 123 has an external radius equal to that of the sleeve 122. It is welded thereto by the bead 124.
- the transition zone 128 diverges with respect to the axis 101 in alignment with the axially internal part 123.
- the transition zone 128 alone ensures the passage of the current. In other words, at this transition zone, no copper part intervenes in the passage of the current.
- the steel transition zone must therefore have a sufficient cross-section.
- the two internal copper frets 130 are placed respectively inside the axially internal parts 125 of each of the steel half-shafts 126.
- the cylindrical external surface of revolution 132 of the frets 130 is complementary to the internal surface 127 of the half-shafts 126, in order to ensure intimate electrical contact between the half-shafts 126 and the internal frets 130.
- the silvering deposition can therefore be carried out either on the external surface 132 of the frets 130 or on the surface internal 127 half-shafts 126.
- the copper 130 hoops are protected from cooling water, generally carbonated water, as well as from chromic acid during the chroming operations of the bearing seats, seals and surface of the roller table, by a sheath. 150 preferably made of stainless steel.
- This cylindrical sheath 150 of revolution is complementary to the internal surface 134 of the frets 130.
- each hoop 130 is completed by two washers 152, 154 arranged transversely to the axis 101, respectively covering each of the ends of the hoops and welded at their internal periphery on the sleeve 150, and at their external periphery on the half-trees 126.
- the external surface 121 of the half-shafts 126 is chrome-plated.
- the conventional ring 40 acting as a joint support shown by way of example in FIG. 3 can be omitted.
- the chromed external surface 121 of the steel half-shafts 126 can in fact take the place of a joint support.
- the body 120 of steel is accessible from the outside, so that the threads 160, 170 conventionally produced in the half-shafts can be provided directly in the half-shafts 126 made of steel, and not in a copper part of the half-shafts as was the case according to the prior art. It is understood that the mechanical strength of these threads is thus much higher in the context of the present invention.
- the number and arrangement of these threads can be the subject of different embodiments and will therefore not be described in detail below. These threads can be used, for example, to block bearings or the manifold.
- a nozzle 180 is attached by shrinking and fixed by welding on each end of the half-shafts 126.
- connection between the tip 180 and the associated half-shaft 126 is such that the internal hoop 130 of copper covers the entire extent of the collector.
- a coating 190 can be deposited by electrodeposition on the collector portion of the external surface of each steel half-shaft 126.
- a coating 192 deposited by electrodeposition on the central sleeve of greatest flare 122, as shown in Figure 3 attached.
- the copper coating 192 can facilitate subsequent shot peening.
- These coatings 190 and 192 are however not essential. Furthermore, insofar as they do not play a primary role in the passage of the required amperages, they can have a very reduced thickness. Their cost and production time are therefore much lower than those of conventional coating.
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- 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)
- Electrolytic Production Of Metals (AREA)
Description
La présente invention concerne le domaine des rouleaux conducteurs de courant, notamment mais non exclusivement les rouleaux pour lignes d'électrolyse en continu.The present invention relates to the field of current conducting rollers, in particular but not exclusively rollers for continuous electrolysis lines.
Sur les dessins annexés on a représenté, en vue générale sur la figure 1 et selon une vue partielle en coupe axiale sur la figure 2, la structure d'un rouleau conducteur de courant classique 10, tel qu'utilisé communément sur les lignes d'électrolyse en continu.In the accompanying drawings is shown, in general view in Figure 1 and in a partial view in axial section in Figure 2, the structure of a conventional current conducting
Ce rouleau comprend essentiellement une partie centrale 12 cylindrique de révolution qui constitue la partie principale active du rouleau intervenant dans l'électrolyse, cette partie centrale est appelée généralement "table" du rouleau, et deux demi-arbres 14, 16 disposés respectivement de part et d'autre de la partie centrale 12 et coaxiaux à celle-ci. Les demi-arbres 14, 16 présentent un diamètre inférieur à celui de la partie centrale. Ils remplissent une double fonction : guider le rouleau en rotation d'une part, et assurer l'alimentation du rouleau en courant d'autre part.This roller essentially comprises a cylindrical
On notera que les rouleaux sont traversés par un canal axial 18 permettant une circulation d'eau de refroidissement.It will be noted that the rollers are traversed by an
Plus précisément, les rouleaux sont formés le plus souvent d'un corps 20 en acier pourvu d'un revêtement externe 30 en cuivre, assurant en particulier la fonction de collecteur. Le corps 20 en acier est lui-même formé généralement d'un manchon central 22 cylindrique de révolution emmanché sur deux demi-arbres coaxiaux en acier 26, et soudé par ses extrémités, en 24, sur ceux-ci.More specifically, the rollers are most often formed of a
Il est prévu en outre une bague 40 servant de support de joint sur chaque demi-arbre 14, 16.There is further provided a
Le revêtement de cuivre est généralement formé par électrodéposition. La réalisation du revêtement de cuivre 30 est fort délicate à mettre en oeuvre, très longue et coûteuse, compte-tenu des épaisseurs imposées par les ampèrages requis, compris généralement entre 12 000 et 18 000 ampères.The copper coating is generally formed by electrodeposition. The production of the
On a tenté de contourner ces difficultés en réalisant le revêtement de cuivre sous forme d'une tulipe frettée sur chaque demi-arbre 26 d'acier. Dans ce cas les sections de chaque demi-arbre 26 en acier et de la tulipe frettée sont calculées pour permettre de passer en combinaison l'ampérage requis. Cependant, on constate fréquemment dans la pratique qu'une corrosion se développe entre la tulipe en cuivre frettée et les demi-arbres supports en acier. Il en résulte que seule la tulipe en cuivre frettée assure alors le passage de courant. Les rouleaux ne peuvent donner satisfaction dans ces conditions.We tried to circumvent these difficulties by making the copper coating in the form of a hooped tulip on each steel half-
De même on constate fréquemment une corrosion entre le manchon central 22 et les demi-arbres emmanchés 26 de sorte que seul le cordon de soudure 24 assure alors le passage du courant.Similarly, corrosion is frequently observed between the
Le document DE-A-1803977 décrit un rouleau conducteur de courant comprenant un élément de cuivre formant un collecteur, revêtu sur une partie de sa longueur par un élément d'acier, pour les extrémités. En sa partie centrale, le rouleau comprend une âme d'acier-carbone reliée au support d'acier par des bagues d'acier, un revêtement interne de cuivre relié à l'élément par une bague et un revêtement extérieure en chrome.Document DE-A-1803977 describes a current conducting roller comprising a copper element forming a collector, coated over a part of its length by a steel element, for the ends. In its central part, the roller comprises a steel-carbon core connected to the steel support by steel rings, an internal copper coating connected to the element by a ring and an external chrome coating.
Les documents DE-A-1055914 et DE-A-2326490 décrivent des rouleaux conducteurs de courant à structure de base en acier revêtu extérieurement de cuivre, apparentés à l'état de la technique représenté sur la figure 1 annexée.The documents DE-A-1055914 and DE-A-2326490 describe current conducting rollers with a basic structure of steel coated on the outside with copper, related to the state of the art represented in FIG. 1 attached.
La présente invention a pour but de proposer un nouveau rouleau conducteur de courant qui élimine totalement les inconvénients de la technique antérieure.The object of the present invention is to propose a new current conducting roller which totally eliminates the drawbacks of the prior art.
Ce but est atteint selon la présente invention grâce à un rouleau conducteur de courant du type défini en revendication 1 annexée.This object is achieved according to the present invention by means of a current conducting roller of the type defined in claim 1 appended.
Selon une autre caractéristique avantageuse de la présente invention, la frette interne en cuivre est protégée par un fourreau, par exemple en acier inoxydable.According to another advantageous characteristic of the present invention, the internal copper hoop is protected by a sheath, for example made of stainless steel.
D'autres caractéristiques, buts et avantages de la présente invention apparaîtront à la lecture de la description détaillée qui va suivre et en regard des dessins annexés, donnés à titre d'exemple non limitatif et sur lesquels :
- les figures 1 et 2 précédemment décrites illustrent l'état de la technique, et
- la figure 3 représente une vue schématique partielle en coupe axiale d'un rouleau conducteur de courant conforme à la présente invention.
- FIGS. 1 and 2 previously described illustrate the state of the art, and
- 3 shows a partial schematic view in axial section of a current conducting roller according to the present invention.
L'axe du rouleau 100 représenté sur la figure 3 est référencé 101.The axis of the
Pour l'essentiel, comme indiqué précédemment, le rouleau 100 comprend une partie centrale 112 cylindrique de révolution, de plus grand diamètre, qui constitue la partie principale active du rouleau ou table, et deux demi-arbres, dont seul le demi-arbre 116 apparaît sur la figure 3, qui prolongent respectivement de part et d'autre et coaxialement la partie centrale 112.Essentially, as indicated above, the
Plus précisément, le rouleau 100 est composé d'un corps en acier 120 et de deux frettes en cuivre, internes, 130.More specifically, the
Le corps en acier 120 est de préférence lui-même formé d'un manchon central cylindrique de révolution 122 soudé par ses extrémités, respectivement sur des demi-arbres 126 étagés, également en acier. On notera qu'à la différence de la technique antérieure, le manchon 122 n'est pas emmanché sur les demi-arbres 126, mais seulement soudé en extrémité sur ceux-ci par des cordons annulaires 124. Les demi-arbres 126 présentent chacun un canal axial traversant.The
La géométrie particulière des demi-arbres 126 peut faire l'objet de nombreux modes de réalisation et ne sera donc pas décrite en détail par la suite. On notera que la section étagée des demi-arbres 126 est croissante, à partir de la partie d'extrémité formant collecteur vers la partie centrale 112.The particular geometry of the half-
Pour l'essentiel chaque demi-arbre 126 comprend une partie axialement externe 125, une partie axialement interne 123 et une zone de transition 128 entre celles-ci. La partie axialement externe 125 est formée d'une succession de portions cylindriques de section croissante vers la table 112. ELle possède une surface interne, cylindrique de révolution autour de l'axe 101, de diamètre constant, référencé 127. La partie axialement interne 123 est plus évasée que la partie axialement externe 125. La partie axialement interne 123 présente un rayon externe égal à celui du manchon 122. Elle est soudée sur celui-ci par le cordon 124. La zone de transition 128 diverge par rapport à l'axe 101 en rapprochement de la partie axialement interne 123.Essentially each half-
La zone de transition 128 assure seule le passage du courant. En d'autres termes au niveau de cette zone de transition aucune partie cuivrée n'intervient dans le passage du courant. La zone de transition en acier doit donc présenter une section suffisante.The
Les deux frettes internes en cuivre 130 sont placées respectivement à l'intérieur des parties axialement interne 125 de chacun des demi-arbres en acier 126. La surface externe cylindrique de révolution 132 des frettes 130 est complémentaire de la surface interne 127 des demi-arbres 126, afin d'assurer un contact électrique intime entre les demi-arbres 126 et les frettes internes 130.The two
Pour renforcer ce contact électrique, on peut prévoir un dépôt d'argenture entre les demi-arbres 126 et les frettes internes 130. Le dépôt d'argenture peut par conséquent être réalisé soit sur la surface externe 132 des frettes 130, soit sur la surface interne 127 des demi-arbres 126.To reinforce this electrical contact, provision can be made for silvering between the half-
Les frettes en cuivre 130 sont protégées de l'eau de refroidissement, généralement de l'eau carbonatée, ainsi que de l'acide chromique lors des opérations de chromage des portées de roulement, joints et surface de la table du rouleau, par un fourreau 150 réalisé de préférence en acier inoxydable.The
Ce fourreau 150 cylindrique de révolution est complémentaire de la surface interne 134 des frettes 130.This
La protection de chaque frette 130 est complétée par deux rondelles 152, 154 disposées transversalement à l'axe 101, recouvrant respectivement chacune des extrémités des frettes et soudées au niveau de leur périphérie interne sur le fourreau 150, et au niveau de leur périphérie externe sur les demi-arbres 126.The protection of each
L'utilisation d'une frette interne en cuivre, outre le fait qu'elle autorise une fabrication rapide et économique, permet de garantir le passage des ampérages requis. En effet, grâce à la protection formée par le fourreau 150, on empêche toute corrosion entre les demi-arbres 126 et les frettes 130.The use of an internal copper hoop, in addition to the fact that it allows rapid and economical manufacture, guarantees the passage of the required amperages. In fact, thanks to the protection formed by the
De préférence la surface externe 121 des demi-arbres 126 est chromée.Preferably the
Ainsi, la bague classique 40 tenant lieu de support de joint, représentée à titre d'exemple sur la figure 3 peut être omise. La surface externe chromée 121 des demi-arbres 126 en acier peut en effet tenir lieu elle-même de support de joint.Thus, the
On notera que grâce à la structure de rouleau proposé dans le cadre de la présente invention, le corps 120 en acier est accessible à l'extérieur, de sorte que les filetages 160, 170 réalisés classiquement dans les demi-arbres peuvent être ménagés directement dans les demi-arbres 126 en acier, et non pas dans une partie en cuivre des demi-arbres comme cela était le cas selon la technique antérieure. On comprend que la tenue mécanique de ces filetages est ainsi bien supérieure dans le cadre de la présente invention. Le nombre et la disposition de ces filetages peuvent faire l'objet de différents modes de réalisation et ne seront donc pas décrits dans le détail par la suite. Ces filetages peuvent servir par exemple au blocage des roulements ou du collecteur.It will be noted that thanks to the roller structure proposed in the context of the present invention, the
De préférence un embout 180 est rapporté par frettage et fixé par soudure sur chaque extrémité des demi-arbres 126.Preferably, a
On notera que, comme représenté sur la figure 3 annexée, la liaison entre l'embout 180 et le demi-arbre associé 126 est telle que la frette interne 130 en cuivre couvre toute l'étendue du collecteur.Note that, as shown in Figure 3 attached, the connection between the
Le cas échéant, un revêtement 190 peut être déposé par électrodéposition sur la portion formant collecteur de la surface externe de chaque demi-arbre en acier 126. De même, on peut prévoir un revêtement 192 déposé par électrodéposition sur le manchon central de plus grand évasement 122, comme représenté sur la figure 3 annexée. Le revêtement 192 en cuivre peut faciliter la réalisation d'un grenaillage ultérieur.If necessary, a
Ces revêtements 190 et 192 ne sont cependant pas indispensables. Par ailleurs, dans la mesure où ils n'interviennent pas à titre principal dans le passage des ampérages requis, ils peuvent présenter une épaisseur très réduite. Leur coût et temps de réalisation sont par conséquent très inférieurs à ceux du revêtement30 classique.These
A titre d'exemple non limitatif, pour un rouleau destiné à une ligne d'électrolyse en continu, on peut prévoir les sections suivantes :
- section de chaque demi-arbre en acier 126, au niveau de la partie formant collecteur : de l'ordre de 8 370 mm,
- section de la frette de cuivre interne 130 : de l'ordre de 3 000 mm,
- section de chaque demi-arbre en acier 126 au niveau de la zone de transition entre la partie cylindrique en contact avec une frette 130 et la partie soudée sur le manchon central 122 : au minimum de l'ordre de 8 150 mm.
- section of each steel half-
shaft 126, at the level of the collector part: of the order of 8,370 mm, - section of the internal copper hoop 130: of the order of 3000 mm,
- section of each steel half-
shaft 126 at the transition zone between the cylindrical part in contact with ahoop 130 and the part welded to the central sleeve 122: at least of the order of 8 150 mm.
Claims (10)
- A current conducting roller, in particular for a continuous electrolysis line, the roller comprising in conventional manner a steel body (120) constituted by a large diameter central cylindrical portion (122) extended at each of its ends by two coaxial half-shafts (126) each placed on a copper element (130), and characterized by the fact that:i) each copper element (130) is constituted by an inside fitting placed and fitted inside respective axially inner portions (125) of each of the steel half-shafts (126), andii) each steel half-shaft (126) is provided with a current collector on its outer surface.
- A roller according to claim 1, characterized by the fact that the inside copper fitting (130) is protected by a lining (150).
- A roller according to claim 2, characterized by the fact that the lining (150) is made of stainless steel.
- A roller according to claim 2 or 3, characterized by the fact that it further includes two washers (152, 154) at the ends of the lining (150), reinforcing the protection of the fitting (130).
- A roller according to any one of claims 1 to 4, characterized by the fact that the outer surface (121) of the steel body is chromium plated.
- A roller according to any one of claims 1 to 5, characterized by the fact that the outer surface (121) of the steel body serves as a gasket support.
- A roller according to any one of claims 1 to 6, characterized by the fact that the outer surface (121) of the steel body is provided with screw threads (160, 170).
- A roller according to any one of claims 1 to 7, characterized by the fact that a deposit of silvering is provided between the inside copper fitting (130) and the steel body (120).
- A roller according to any one of claims 1 to 8, characterized by the fact that it includes a thin outer deposit of copper (190) over the current collector zone and formed by electrodeposition.
- A roller according to any one of claims 1 to 9, characterized by the fact that it includes a thin outer deposit of copper (190) over the barrel of the roller and formed by electrodeposition.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8907720 | 1989-06-12 | ||
| FR8907720A FR2648269B1 (en) | 1989-06-12 | 1989-06-12 | CURRENT CONDUCTING ROLL |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0403362A1 EP0403362A1 (en) | 1990-12-19 |
| EP0403362B1 true EP0403362B1 (en) | 1996-04-17 |
Family
ID=9382602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90401612A Expired - Lifetime EP0403362B1 (en) | 1989-06-12 | 1990-06-12 | Current conducting roll |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5083353A (en) |
| EP (1) | EP0403362B1 (en) |
| CA (1) | CA2018741C (en) |
| DE (1) | DE69026535T2 (en) |
| ES (1) | ES2085902T3 (en) |
| FR (1) | FR2648269B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2682525B1 (en) * | 1991-10-15 | 1994-01-14 | Polimiroir | IMPROVEMENT ON CURRENT CONDUCTING ROLLERS IN PARTICULAR FOR ELECTROLYSIS LINES. |
| JP3102132B2 (en) * | 1992-03-31 | 2000-10-23 | 住友金属工業株式会社 | Heat crown suppression furnace roll |
| US6514392B2 (en) * | 2001-07-02 | 2003-02-04 | Jason Ko | Conducting roller for an electroplating apparatus |
| US20090045029A1 (en) * | 2007-08-16 | 2009-02-19 | Deur Delwyn G | Conveyor roller and cartridge bearing assembly for same |
| FR3076299B1 (en) * | 2017-12-29 | 2021-01-08 | Polimiroir | CURRENT CONDUCTIVE ROLLS |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1055914B (en) * | 1956-03-08 | 1959-04-23 | United States Steel Corp | Power supply roller, in particular for use in the electrolytic treatment of strips |
| DE1803877B2 (en) * | 1968-10-14 | 1971-09-02 | HOLLOW CONDUCTOR |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3165179A (en) * | 1961-09-11 | 1965-01-12 | United States Steel Corp | Ceramic coated conductor roll |
| DE2326490C2 (en) * | 1973-05-24 | 1982-06-24 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Power feed roller |
| DE2816006C2 (en) * | 1978-04-13 | 1983-12-01 | Harald 5840 Schwerte Albrecht | Process for the production of a current conducting roller and roller produced according to this process |
| JPS6045715B2 (en) * | 1982-06-16 | 1985-10-11 | 日本硬質技研株式会社 | Manufacturing method for energizing conductor roll |
| JPS60135595A (en) * | 1983-12-23 | 1985-07-18 | Kubota Ltd | Electricity conducting roll for electroplating |
-
1989
- 1989-06-12 FR FR8907720A patent/FR2648269B1/en not_active Expired - Fee Related
-
1990
- 1990-06-11 CA CA002018741A patent/CA2018741C/en not_active Expired - Fee Related
- 1990-06-12 EP EP90401612A patent/EP0403362B1/en not_active Expired - Lifetime
- 1990-06-12 ES ES90401612T patent/ES2085902T3/en not_active Expired - Lifetime
- 1990-06-12 US US07/536,720 patent/US5083353A/en not_active Expired - Lifetime
- 1990-06-12 DE DE69026535T patent/DE69026535T2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1055914B (en) * | 1956-03-08 | 1959-04-23 | United States Steel Corp | Power supply roller, in particular for use in the electrolytic treatment of strips |
| DE1803877B2 (en) * | 1968-10-14 | 1971-09-02 | HOLLOW CONDUCTOR |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2648269B1 (en) | 1994-02-18 |
| CA2018741C (en) | 1999-02-23 |
| DE69026535T2 (en) | 1996-12-19 |
| ES2085902T3 (en) | 1996-06-16 |
| DE69026535D1 (en) | 1996-05-23 |
| EP0403362A1 (en) | 1990-12-19 |
| US5083353A (en) | 1992-01-28 |
| CA2018741A1 (en) | 1990-12-12 |
| FR2648269A1 (en) | 1990-12-14 |
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