EP0341167A1 - Verfahren zur Herstellung eines perforierten Nickelrahmens durch Elektroformung - Google Patents

Verfahren zur Herstellung eines perforierten Nickelrahmens durch Elektroformung Download PDF

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Publication number
EP0341167A1
EP0341167A1 EP89420162A EP89420162A EP0341167A1 EP 0341167 A1 EP0341167 A1 EP 0341167A1 EP 89420162 A EP89420162 A EP 89420162A EP 89420162 A EP89420162 A EP 89420162A EP 0341167 A1 EP0341167 A1 EP 0341167A1
Authority
EP
European Patent Office
Prior art keywords
pyridinium
nickel
bath
skeleton
alkyl chain
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.)
Granted
Application number
EP89420162A
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English (en)
French (fr)
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EP0341167B1 (de
Inventor
Armand Piolat
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.)
Fingraf AG
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Piolat Industrie
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Filing date
Publication date
Application filed by Piolat Industrie filed Critical Piolat Industrie
Publication of EP0341167A1 publication Critical patent/EP0341167A1/de
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00—Electroforming
    • C25D1/08—Perforated or foraminous objects, e.g. sieves

Definitions

  • the present invention relates to a method of manufacturing a perforated nickel frame, by electroforming.
  • Such perforated frames are in particular used as printing frames, whether they are called “flat frame” prints, or so-called “rotary frame” prints.
  • the invention relates to a manufacturing process, as described and proposed by patent US-A-2,226,384, the content of which is incorporated into the present description.
  • Alveoli the shape and dimensions of which correspond to the meshes of the perforated frame to be obtained, are formed on the surface of the mandrel by different etching processes, such as chemical attack, seam etching, or electronic etching.
  • the hollow opening of the cells is filled with a non-conductive resin leaving uncovered the edge or edge of the same cells, remaining conductive.
  • a first deposit of nickel is carried out on the support mandrel, for a limited time, so as to obtain a nickel skeleton whose perforations correspond substantially to the original cells. of the mandrel.
  • the duration of this first stage is therefore chosen to limit the growth of the nickel deposit from the edges of the cells, preferably upwards.
  • the skeleton is separated from the mandrel, for example by simple cooling causing differential expansion and therefore detachment of the skeleton relative to the mandrel.
  • a second deposit of nickel is carried out on the skeleton. This additional contribution of metal envelops and reinforces all the nickel cords of the skeleton, to obtain the final perforated frame.
  • the subject of the present invention is a method as described above, making it possible to strengthen the skeleton resulting from the first step, both by respecting essentially the dimensions of the perforations of said skeleton, and by limiting the reduction in the free cross section of the meshes. of the perforated frame obtained.
  • the present invention also relates to an electronic method, which remains simple in its implementation, and in particular does not resort to sophisticated technological solutions such as a pulsed supply current.
  • - R is an alkyl chain substituted by at least one group having no double or triple bond with a carbon atom - And / or R ′ is a substituent group having no bond with a carbon atom.
  • the pyridinium compound is used in the second electrolysis bath, together with a compound listed in the relevant literature by way of tension reducer.
  • a compound listed in the relevant literature by way of tension reducer can be a sulfonimide, such as saccharin, a sulfonamide, paratoluene-sulfonamide, sodium metabenzenedisulfonate, sodium naphthalene trisulfonate 1,3,6, arylsulfonic acid, etc.
  • the pyridinium compound is used at a rate of 60 to 250 g for 10,000 A / h, preferably at the same time as a voltage reducer, as described above, in the proportions of 10 to 500 g for 10,000 A / h.
  • the electrochemical process according to the invention is generally in accordance with the process described in patent US-A-2,226,384, so that it does not appear useful to describe this process with precision.
  • a matrix or mandrel-support 1 comprising cells 2, the opening of which has been closed with a non-conductive material, such as a resin 3.
  • a non-conductive material such as a resin 3.
  • the edge or edge 4 of the same cells remains electrically conductive.
  • a nickel skeleton 5 is obtained, comprising perforations 7 corresponding substantially to the openings of the original alvoles 2. This approximate correspondence is obtained by an appropriate limitation of the duration of the first electrochemical step.
  • the skeleton 5 is detached from the support mandrel 1.
  • the skeleton 5 is immersed in a second bath 8 for nickel electrolysis, added with a pyridinium compound according to the invention.
  • the bath is preferably made to circulate in the direction of the arrows B, that is to say parallel to the anode 6, and therefore to a generator of the skeleton 5 in the form of a cylinder in the present case.
  • the speed of circulation of the bath is between 5 and 10 cm / second; in correspondence, the arrows A indicate the direction of the current lines from the anode 6 to the cathode 5. These lines are perpendicular to the cathode skeleton, as well as to the direction of movement of the electrolysis bath.
  • the circulation mode of the second electrochemical bath selected according to the invention provides various advantages.
  • the ion exchange between the anode (s) (6) and the cathode constituted by the nickel skeleton (5) can increase significantly, increasing the intensity of the current.
  • all the impurities liable to detach from the anodes or from the skeleton-cathode are entrained outside the latter.
  • the nickel is gradually deposited around the cords 4a of the skeleton 5, passing inside the perforations 7, and circulating along the internal and external walls of the skeleton 5.
  • the perforated frame obtained has a very characteristic mesh profile, represented in FIG. 4 as regards a cross section of the nickel beads. according to the line AA of FIG. 5, and in FIG. 5, in solid line, as regards the flat shape of the mesh, on the inside of the perforated cylindrical frame.
  • nickel beads are obtained having both their upper part and their lower part of the bulges 12 and 13, directed in the direction of the height, these bulges being connected together by rounded parts 11 and 14.
  • the perforations obtained according to the invention actually have this flat shape generally hexagonal in shape, but with a rounded profile at all points, sort of inscribing the hexagonal profile.
  • This is shown by the solid line 15, delimiting each perforation of the frame, relative to the dotted line 16, corresponding to the flat shape finally obtained with a second electrochemical bath added in the traditional way with a primary and secondary glosser. , all the other electrochemical parameters remaining equal elsewhere.
  • the broken line 17 shows the flat shape of the skeleton openings resulting from the first electrolysis step, before electrochemical treatment according to the second step of the process.
  • the first example of a nickel bath used is of the nickel salt type and contains: - 300 g per liter of nickel sulfate - 50 g per liter of nickel chloride - 50 g per liter of boric acid - 100 g of 1- (3-sulfopropyl) -pyridinium, for 10,000 A / h - 250 g of sodium naphthalene-trisulfonate, for 10,000 A / h
  • Electrolysis of the second bath is carried out in a conventional manner, the bath circulating, moreover, parallel to the anode and to the cathode cylinder.
  • a second example of a bath in accordance with the invention comprises: - 250 g per liter of nickel sulfate - 40 g per liter of nickel chloride - 45 g per liter of boric acid - 150 g per liter of 1- (2-hydroxy-3-sulfopropyl) -pyridinium, for 10,000 A / h - 100 g of sodium saccharinate for 10,000 A / h - 40 cc of wetting agent for 10,000 A / h
  • the process according to the invention is very suitable for depositing nickel from a nickel anode containing sulfur (nickel S). However, it seems preferable to use sulfur-free nickel to limit internal tensions.
  • the method according to the invention also applies good at making flat perforated frames than cylindrical frames.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electrolytic Production Of Metals (AREA)
EP89420162A 1988-05-02 1989-04-28 Verfahren zur Herstellung eines perforierten Nickelrahmens durch Elektroformung Expired - Lifetime EP0341167B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8806428 1988-05-02
FR8806428A FR2630753B1 (fr) 1988-05-02 1988-05-02 Cadres perfores en nickel et leur procede de fabrication

Publications (2)

Publication Number Publication Date
EP0341167A1 true EP0341167A1 (de) 1989-11-08
EP0341167B1 EP0341167B1 (de) 1995-06-28

Family

ID=9366261

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420162A Expired - Lifetime EP0341167B1 (de) 1988-05-02 1989-04-28 Verfahren zur Herstellung eines perforierten Nickelrahmens durch Elektroformung

Country Status (5)

Country Link
US (1) US4913783A (de)
EP (1) EP0341167B1 (de)
AT (1) ATE124471T1 (de)
DE (1) DE68923217T2 (de)
FR (1) FR2630753B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4013349A1 (de) * 1990-04-23 1991-10-24 Schering Ag 1-(2-sulfoaethyl)pyridiniumbetain, verfahren zu dessen herstellung sowie saure nickelbaeder enthaltend diese verbindung
EP0492731A1 (de) * 1990-12-24 1992-07-01 Stork Screens B.V. Verfahren zur Herstellung eines Siebes mit geringer interner Spannung, sowie auf diese Weise hergestelltes Sieb
EP0558142A1 (de) * 1992-02-26 1993-09-01 Stork Screens B.V. Metallschaum und Verfahren zu dessen Herstellung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328587A (en) * 1992-11-16 1994-07-12 Ir International, Inc. Method of making machine-engraved seamless tube
US5632878A (en) * 1994-02-01 1997-05-27 Fet Engineering, Inc. Method for manufacturing an electroforming mold
DE19623724C1 (de) * 1996-06-14 1997-12-18 Martin Klemm Verfahren zur elektrolytischen Herstellung eines Siebes sowie Vorrichtung zur Durchführung dieses Verfahrens
KR100373056B1 (ko) * 1999-09-04 2003-02-25 주식회사 유니테크 롤러 스크린 제조방법
DE10037521C2 (de) * 1999-11-18 2002-04-25 Saxon Screens Rotationsschablo Verfahren zur elektrolytischen Herstellung von Rotationssiebdruckformen
JP6374217B2 (ja) * 2014-05-19 2018-08-15 株式会社ボンマーク メタルマスク及びその製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2226384A (en) 1938-12-14 1940-12-24 Edward O Norris Inc Process of electrolytically producing foraminous sheets
DE1621157A1 (de) 1967-08-16 1971-05-19 Riedel & Co Saures galvanisches Nickelbad
US4148797A (en) * 1977-07-15 1979-04-10 Cilag-Chemie A.G. (N-Substituted pyridyl)-alkyl sulfonic acid betaines as electroplating additives
EP0006461A1 (de) * 1978-06-14 1980-01-09 BASF Aktiengesellschaft Saures galvanisches Nickelbad, das Sulfobetaine als Glanz- und Einebnungsmittel enthält
GB2051130A (en) * 1979-06-20 1981-01-14 Toshin Kogyo Co Cylinder for Rotary Screen Printing having High Aperture Ratio and Process for Preparation Thereof Electroforming Perforate Cylindrical Bodies
US4397715A (en) * 1980-09-30 1983-08-09 Anand Mohan Process of manufacturing screen material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8002197A (nl) * 1980-04-15 1981-11-16 Stork Screens Bv Werkwijze voor het electrolytisch vervaardigen van een zeef, in het bijzonder cylindervormige zeef, alsmede zeef.
US4430171A (en) * 1981-08-24 1984-02-07 M&T Chemicals Inc. Electroplating baths for nickel, iron, cobalt and alloys thereof
NL8105150A (nl) * 1981-11-13 1983-06-01 Veco Beheer Bv Werkwijze voor het vervaardigen van zeefmateriaal, verkregen zeefmateriaal, alsmede inrichting voor het uitvoeren van de werkwijze.
US4430170A (en) * 1983-01-17 1984-02-07 The United States Of America As Represented By The Secretary Of The Navy Electrodeposition of refractory metal carbides

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2226384A (en) 1938-12-14 1940-12-24 Edward O Norris Inc Process of electrolytically producing foraminous sheets
DE1621157A1 (de) 1967-08-16 1971-05-19 Riedel & Co Saures galvanisches Nickelbad
US4148797A (en) * 1977-07-15 1979-04-10 Cilag-Chemie A.G. (N-Substituted pyridyl)-alkyl sulfonic acid betaines as electroplating additives
EP0006461A1 (de) * 1978-06-14 1980-01-09 BASF Aktiengesellschaft Saures galvanisches Nickelbad, das Sulfobetaine als Glanz- und Einebnungsmittel enthält
GB2051130A (en) * 1979-06-20 1981-01-14 Toshin Kogyo Co Cylinder for Rotary Screen Printing having High Aperture Ratio and Process for Preparation Thereof Electroforming Perforate Cylindrical Bodies
US4397715A (en) * 1980-09-30 1983-08-09 Anand Mohan Process of manufacturing screen material
US4478688A (en) 1980-09-30 1984-10-23 Veco Beheer B.V. Process of manufacturing screen material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GUIDE DE L'ELECTRO- FORMAGE DU NICKEL, 1975, pages 52 - 53

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4013349A1 (de) * 1990-04-23 1991-10-24 Schering Ag 1-(2-sulfoaethyl)pyridiniumbetain, verfahren zu dessen herstellung sowie saure nickelbaeder enthaltend diese verbindung
EP0492731A1 (de) * 1990-12-24 1992-07-01 Stork Screens B.V. Verfahren zur Herstellung eines Siebes mit geringer interner Spannung, sowie auf diese Weise hergestelltes Sieb
AU634920B2 (en) * 1990-12-24 1993-03-04 Stork Screens B.V. Method for forming a sieve material having low internal stress and sieve material so obtained
US5282951A (en) * 1990-12-24 1994-02-01 Stork Screens, B.V. Method for forming a sieve material having low internal stress and sieve material so obtained
EP0558142A1 (de) * 1992-02-26 1993-09-01 Stork Screens B.V. Metallschaum und Verfahren zu dessen Herstellung
US5584983A (en) * 1992-02-26 1996-12-17 Stork Screens, B.V. Method for the production of a metal foam

Also Published As

Publication number Publication date
EP0341167B1 (de) 1995-06-28
FR2630753B1 (fr) 1992-01-03
DE68923217T2 (de) 1995-11-09
US4913783A (en) 1990-04-03
DE68923217D1 (de) 1995-08-03
ATE124471T1 (de) 1995-07-15
FR2630753A1 (fr) 1989-11-03

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