• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to the metallurgical industry, in particular to the surface plating of a current-carrying roller located in electrochemical coating installations. The purpose of the invention is to increase the service life. The essence of the invention is that an intermediate element 6 is placed between the current-carrying element 3 and the sealing element 4, the expansion coefficient of which has an average value between the coefficients of the current-carrying 3 and the sealing 4 elements. Due to this intermediate element 6, the quality of of the applied coating, as well as the capacity of the installation due to the uniform supply of current to the entire surface of the tape and by eliminating the stop to edit the profile kopodvod conductive roller 1.9z, PF-ly, 14 yl. Yo
    公开号:SU1722236A3
    申请号:SU884356138
    申请日:1988-07-06
    公开日:1992-03-23
    发明作者:Бертран Жильбер；Коллэн Жерар；Гасперман Пьер；Клейн Андре；Котте Жерар；Дюпойет Ги；Мишель Жорж；Трюшо Жан-Марк
    申请人:Соллак И Жерланд Стов Вудвард (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the metallurgical industry, in particular to the field of surface plating of a current-carrying roller located in electrochemical coating installations.
    Conductive rollers, which act as cathodes, most often consist of a conductive cylindrical shell, usually stainless steel, mounted on a carbon steel basis that is wider than the active zones of the shell or the shells through which electrical current passes. This steel core is covered with a flexible polymeric substance that is elastic and at the same time insulating on each side of the core or zones, and this substance performs the function of a drive and provides tightness, electrical insulation and protection of the core against corrosion. These
    the rollers are partially immersed in an electrolyte, the temperature of which is usually much higher than the ambient temperature. The strip rotates partially around the conductive roller, the inner side of the non-coating is in contact with part of the core of the conductive shell on one side in order to establish electrical contact and on the other side with the insulating zone-elastic substance in order to ensure the tightness of the contact devices, It is quite clear that if uniform deposition is required on the strip during its passage in the electrolyte, the quality and uniformity of contact between the shell and the strip, and the quality and The integrity of the side tightness and uniformity of flow densities, these signs are the most important.
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    The subject of US patents is the improvement of conductive rollers for electrodeposition, most often focused on the quality and uniformity of electrical contact, as well as on the distribution of the density of electric current. For tightness, it is common to cover the core of conductive rollers with rubber, neoprene, or similar materials, including polyurethane, and it is recommended to use the necessary adhesive compositions for these elastic sealed tapes, taking into account the main role that they also play in applying this method . Special geometric arrangements at the ends of the conductive shells or shells in the form of recesses, protuberances, saw teeth or a beveled edge are sometimes envisaged to increase the reliability of this tightness.
    In order to provide confidence in the functions of tightness and electrical insulation, sometimes sealed rings are installed on a solid insulation bandage.
    However, all these measures make it impossible to fully guarantee the contact regularity and distribution of electric current between the strip and the conductive shell, as well as tightness.
    An elastic hermetic bandage comes directly (with the exception of a thin interphase surface formed by a sticky compound) at the contact at the contact of the sides of the active zone of the conductive shell. This presents some inconvenience. Under the effect of temperature and the fact that elastomers expand more than steel, the elastic bandage is subject to increase in thickness (radial) much faster than steel, which leads to a decrease in the quality and uniformity of physical and electrical contact of the strip on the active conductive shell, despite tension forces acting on the strip.
    Under the action of time, the elastic bandage of elastomers in connection with immersion in the electrolyte also increases the thickness due to absorption and chemical compounds with the electrolyte (a well-known phenomenon in the practice of elastomers), which also contributes to the deterioration of the quality and uniformity of physical and electrical contact between the strip and shell. .
    The reduction in the quality and uniformity of the contact is particularly sensitive on the side boards of the conductive shell because the elastomer (which expands and swells) reaches the bead level, and the metal relatively expands slightly, thus, it is in these zones that the current
    difficult, because the width of the strip to be coated is greater than the width of the conductive shell and because there is a desire to obtain a uniform density of electrodeposition flow in the strip.
    0 These peeling tendencies, even insignificant, become immediately very weighty in terms of changes in electrical resistance, as well as in terms of uniformity of deposition and
    5 installation performance.
    Practicing is such a quick fit of the profile on these elastic bands, which requires stopping and dismounting operations.
    0 This relative relationship between the elastomer and the metal ends in the termination of the bond of the elastomer-metal and thus the passage of the electrolyte, which in this case penetrates between
    5 with two components, further deteriorating the uniform distribution of the electric current.
    The aim of the invention is to increase the service life.
    0 The goal is achieved by the fact that the current-carrying roller is provided with an intermediate element located between the current-carrying and sealing elements, made in the form of a ring of
    5 of a polymeric material with an expansion coefficient having an average value between the expansion coefficients of the current supply and sealing elements.
    0
    Thus, the coating of the elastomer or flexible polymer, and also in the case of its adhesive layer, is not in direct contact with the side edges of the active zone.
    5 or zones of conductive shell or shells, but mounting is provided between the elastomer or flexible polymer and side boards of the core or zones of the conducting shell or shells of one or more polymers (intermediate elements) installed in the form of adjacent rings with or without partial overlapping of one on the other, the expansion coefficients of which, flexibility or the risk of swelling due to absorption or chemical combination with electrolyte, or two or three of these parameters simultaneously, are intermediate between them, stainless steel (used primarily for the sleeve) and a flexible polymer or elastomer.
    It is possible, for example, to choose for the formation of intermediate elements such as rubber with sulfur (natural or nitrile) solid ebonite or epoxy resins, or any form of the polymer of the reticular system, relatively closed, acid-resistant and with a low coefficient of expansion, increased hardness of this or these intermediate elements are not a hindrance, taking into account the particular geometry of the coating.
    With particular implementation of the invention, an armature of fibers (which can be, for example, metal, glass, textile or synthetic) is provided in the intermediate or intermediate elements, which blocks the radially intermediate element or elements and limits the radial changes in the size of this coating from the intermediate element and which, in the case of conductive fibers, can perform a favorable function in the event of deteriorating conditions of electricity from the side of the conductive core called the sheath .
    FIG. 1 and 2, the current-carrying roller is shown in side and top view; in fig. 3 - the same section; in fig. 4 - the same, longitudinal section; in fig. 5-7 - forms of the intermediate element, section; in fig. 8 and 9, an intermediate element consisting of several sections, a longitudinal section; in fig. 10 - intermediate reinforced element, longitudinal section; in fig. 11-14-forms of the current supply of the slot element, longitudinal section,
    The current-carrying roller 1, which acts as a cathode, which envelops the tape 2, consists of a current-carrying element 3, made in the form of a cylindrical shell, usually stainless steel, mounted on the body of the roller 1 of carbon steel, and the shell is narrower than roller body 1.
    The steel body of the roller 1 is covered with a sealing element 4, made in the form of a flexible polymer substance, which is elastic and at the same time insulating on each side of the current-carrying element 3, and this substance provides electrical insulation and protection of the body of the rollers from corrosion. The roller 1 is partially immersed in the electrolyte 5, the temperature of which is usually much higher than the ambient temperature.
    The intermediate element 6 is inserted between the current-carrying element 3 formed by the shell and the sealing element 4, and this intermediate
    element b is a polymer whose expansion coefficient has an average value between the coefficients of the current-carrying element 3 and the sealing
    element 4.
    The intermediate element 6 may be made in the form of adjacent rings with or without partial overlapping of one another, for example, from ebonite, epoxy resins or
    0 any other substance that is acid resistant and with an average coefficient of expansion, and the increased hardness of these substances is not a hindrance. Reinforcement is also provided.
    5 of the intermediate element 6 by the element 7, which may be made of metal, glass, textile or synthetic fibers arranged radially in the intermediate element 6.
    0 These fibers perform the function under deteriorating conditions for the supply of electricity from the end surface 8 of the current-carrying element 3.
    The intermediate element 6 must be well bonded to the end surface of the current-carrying element 3 and must be glued to the body of the roller 1, as well as to the sealing element 4.
    As an intermediate element 6
    0 you should choose either polyurethane, or Gipalon, or an even more adapted component VARIOLASTIC.
    The current-carrying roller works as follows.
    5 The belt 2 rotates partly around the current lead roller 1, the inner side of which, not to be coated, is in contact with the current lead element 3 in order to set
    0 electrical contact and to ensure the tightness of the contact through the sealing element 4. At the same time, coating is applied to the outside.
    5 Due to the intermediate element 6, the resizing of the sealing element 4 has a lesser effect on the quality and uniformity of the electrical contact of the tape 2 with the current-carrying element 3, which also protects the body of the roller 1 from corrosion.
    The experiments carried out proved the effectiveness of the invention in relation to classical solutions, greatly increasing the plant productivity, as well as the quality and uniformity of the precipitation.
    0
    Good results are obtained with the width of the intermediate element 6 in excess of 10 mm. the optimal size of which depends
    from the width of the tape 2 to be processed, and lies between 10 and 40 mm.
    The implementation of the intermediate element 6 in the form of the underlying layer under the sealing element 4 allows to increase the tightness of the complex.
    Performing at an angle to the axis of rotation of the roller adjacent the end surfaces of the sealing member 3 and the intermediate member 4 imparts an even more gradual transition from one zone to another during the expansion of these elements.
    The implementation of the intermediate element 6 in the form of sections ensures a good uniformity of expansion between the current-carrying element 3 and the sealing element 4.
    The implementation of the intermediate element 6 with current-carrying elements, such as current-carrying particles such as powder or metal fibers, ensures a regular distribution of the electric current in the tape 2 at the end surface 8 of the current-carrying element 3.
    The invention makes it possible to guarantee the straightness of the expansion of the total generatrix of the current-carrying element 3 due to the intermediate element 6 blocking the end surface of the current-carrying element 3.
    权利要求:
    Claims (10)
    [1]
    Claim 1. A current-carrying roller for electroplating a metal strip comprising a cylindrical current-carrying element made in the form of a shell located on a carbon steel body, at the ends of which a sealing element is fixed, characterized in that in order to increase the service life, it is provided with an intermediate element located between the current lead and the sealing
    elements made in the form of a ring of polymeric material with an expansion coefficient having an average value between the expansion coefficients of the current-carrying and sealing elements.
    [2]
    2. Roller according to claim 1, characterized in that the intermediate element is reinforced with natural or synthetic non-electrically conductive elements.
    [3]
    3. Roller according to claim 1, characterized in that the intermediate element is reinforced with natural or synthetic electrically conductive elements.
    [4]
    4. A roller according to claim 1, characterized in that the intermediate element of polymeric material is made with an electrically conductive powder.
    [5]
    5. A roller according to claim 1, characterized in that the sealing element of a polymeric material is made with an electrically conductive powder.
    [6]
    6. Roller according to Claim 1, characterized in that the intermediate element is partially placed under the sealing element.
    [7]
    7. Roller according to claim 1, characterized in that the intermediate element is partially located under the current-carrying element.
    [8]
    8. A roller according to claim 1, characterized in that the end surfaces of the intermediate element are made with inclinations to the axis of rotation of the roller and are coated with an adhesive composition.
    [9]
    9. A roller according to Claim 1, characterized in that the intermediate element is designed as sections of two elements with different physicochemical properties.
    [10]
    10. Roller according to claim 1, characterized in that the end surface of the sealing element on the side of the intermediate element is made with a coating of adhesive composition,
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    类似技术:
    公开号 | 公开日 | 专利标题
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    US4415425A|1983-11-15|Conductor roll contour
    US4401541A|1983-08-30|Apparatus for electroplating a strip of metal of relatively low electric conductivity
    同族专利:
    公开号 | 公开日
    EP0298887B1|1992-01-08|
    KR890002446A|1989-04-10|
    DE3867550D1|1992-02-20|
    JPH0768636B2|1995-07-26|
    AT71413T|1992-01-15|
    JPH01127694A|1989-05-19|
    US4849083A|1989-07-18|
    FR2617869A1|1989-01-13|
    GR3004293T3|1993-03-31|
    ES2029726T3|1992-09-01|
    EP0298887A1|1989-01-11|
    FR2617869B1|1989-12-15|
    KR950013596B1|1995-11-13|
    BR8803359A|1989-01-31|
    CA1321165C|1993-08-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3483113A|1966-02-11|1969-12-09|United States Steel Corp|Apparatus for continuously electroplating a metallic strip|
    US3634223A|1970-02-25|1972-01-11|United States Steel Corp|Contact assembly|
    US4415425A|1982-03-15|1983-11-15|United States Steel Corporation|Conductor roll contour|
    JPS6046395A|1983-08-23|1985-03-13|Kobe Steel Ltd|Conductor roll for electroplating|
    JPH0143403Y2|1984-05-11|1989-12-15|US5069762A|1991-01-18|1991-12-03|Usx Corporation|Appartaus for improved current transfer in radial cell electroplating|
    KR100373677B1|1998-09-16|2003-05-09|주식회사 포스코|Electroplating Conduction Roll|
    DE10019720A1|2000-04-20|2001-10-31|Atotech Deutschland Gmbh|Method and device for electrical contacting of plate-like items to be treated in electrolytic processes|
    KR20020001079A|2000-06-24|2002-01-09|이구택|Device for preventing conductor roll band mark|
    US7045043B1|2000-07-24|2006-05-16|Pohang Iron And Steel Co., Ltd.|Method of reducing a band mark of an electroplating steel sheet|
    KR100460667B1|2000-11-22|2004-12-09|주식회사 포스코|A conductor roll|
    US20060243593A1|2005-04-29|2006-11-02|Bowman Kenneth A|Apparatus and method for improving contact between a web and a roll|
    FR2919511B1|2007-07-30|2010-01-29|Snecma Propulsion Solide|COMPOSITE THERMOSTRUCTURAL ROLL|
    CN109652793A|2019-03-04|2019-04-19|厦门佰事兴新材料科技有限公司|A kind of processing method of the conductive bar of squirrel-cage silver conductive rollers|
    CN113757382A|2021-09-09|2021-12-07|广东嘉元科技股份有限公司|Special online anti-oxidation device for cathode roller|
    法律状态:
    2007-09-20| REG| Reference to a code of a succession state|Ref country code: RU Ref legal event code: MM4A Effective date: 20050707 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR8709651A|FR2617869B1|1987-07-07|1987-07-07|ROTARY CONDUCTIVE ROLLER FOR CONTINUOUS ELECTROLYTIC DEPOSITION ON METAL STRIPS OR OTHER ELECTRICALLY CONDUCTIVE STRIPS|
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