EP1325970A1 - Procédé de galvanisation locale d'une pièce - Google Patents

Procédé de galvanisation locale d'une pièce Download PDF

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Publication number
EP1325970A1
EP1325970A1 EP02293231A EP02293231A EP1325970A1 EP 1325970 A1 EP1325970 A1 EP 1325970A1 EP 02293231 A EP02293231 A EP 02293231A EP 02293231 A EP02293231 A EP 02293231A EP 1325970 A1 EP1325970 A1 EP 1325970A1
Authority
EP
European Patent Office
Prior art keywords
portions
delimitation
galvanized
different
galvanizing
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.)
Withdrawn
Application number
EP02293231A
Other languages
German (de)
English (en)
French (fr)
Inventor
Marc Phu
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.)
DRNC Holdings Inc
Original Assignee
Alcatel CIT SA
Alcatel SA
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 Alcatel CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Publication of EP1325970A1 publication Critical patent/EP1325970A1/fr
Withdrawn legal-status Critical Current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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/54—Electroplating of non-metallic surfaces
    • C25D5/56—Electroplating of non-metallic surfaces of plastics

Definitions

  • the present invention relates to a method of galvanizing a part of any shape and size, in particular the partial galvanization of different parts of such a room.
  • Galvanization is a technique commonly used in many industries and allows obtaining parts with a chrome appearance, titanium or gold for example.
  • Galvanizing is essentially a reaction of electrolytic deposition of a metal salt on a metal, generally for the preserve from oxidation. Galvanizing a part therefore makes it possible to obtain a metallic and non-oxidizable appearance.
  • Galvanized parts are not necessarily made of metal but can be made of another material, for example plastic for reasons of costs and ease of creating shapes. Indeed, plastic is a material low cost easy to work and all kinds of part shapes can be obtained, in particular with known techniques for injecting plastic into a mold.
  • Different families of plastic can be used for injection molding, such as PC (Poly Carbonate) or ABS (Acrylate Butadiene Styrene) for example.
  • PC Poly Carbonate
  • ABS Acrylate Butadiene Styrene
  • certain families of plastic can be galvanized like ABS by example, and others not like the PC for example.
  • galvanizing plastic parts represents many applications in various industries, such as the automotive industry, the automotive industry radiocommunication terminals or personal assistants or any other industry requiring a non-oxidizable metallic appearance to a part in plastic.
  • Galvanizing a plastic part essentially requires the realization of the following stages: The part is immersed in an acidic chemical bath which attacks the plastic superficially and creates cavities on the surface of the part. The part is then successively immersed in a plurality of metal baths allowing on the one hand to carry out metallic deposits (for example of copper and / or nickel) in the surface cavities of the plastic and on the other hand the galvanization itself by depositing metallic salts which react by electrolysis with metallic deposits previously carried out. Salt baths metals can be based on chromium, titanium or gold for example, depending on the final appearance sought for the galvanized part. So that the electrolysis reaction is occurs, it is essential to have at least one electrode on the part to be galvanize when immersed in galvanizing baths.
  • the same part has different metallization finishes, that is to say that a single piece is locally galvanized on different portions with different effects or metallic aspects.
  • a first technique consists of making several different plastic parts, galvanizing them separately and completely with appropriate metal salts and then assemble to form the final part with different finishing zones corresponding to the different initial pieces.
  • the assembly step constitutes a delicate step, costly in time and poor in quality because a groove of transition between zones (the initial pieces) remains after assembly.
  • Another technique consists of making a single plastic part and delimiting portions of this piece by printing a border using insulating ink. The room is then fully and successively immersed in different metal baths, the last galvanizing bath being carried out with the electrodes arranged inside an isolated portion of the room.
  • This technique makes it possible to obtain different finishes of galvanizing on different parts of the part by moving the electrodes from one portion to another before each immersion in the galvanizing bath corresponding.
  • this technique is limited to shaped parts simple because the impression of insulation between the different portions of the room is limited to a flat surface. It is therefore impossible to delimit portions of rooms complex shapes using this technique.
  • the invention proposes to produce a delimitation between portions of the part to be galvanized which is integrated into the volume of the part in order to allow better precision and greater flexibility of shape, particular with the possibility of a three-dimensional delimitation.
  • the successive galvanization of each portion is made by moving the electrode (s) from one portion to another and dipping the part in different successive metal baths.
  • the invention also relates to a part whose surface is locally galvanized on at least two separate portions with different finishes, characterized in that the distinctly galvanized portions are separated by a delimitation incorporated into the volume of the room.
  • the delimitation consists of a non-material galvanizable, such as Poly-Carbonate (PC).
  • PC Poly-Carbonate
  • the galvanized portions of the part are composed of Acrylate Butadiene Styrene (ABS) or Acrylate Butadiene Styrene / Poly Carbonate (ABS / PC).
  • the invention applies in particular to a radiocommunication terminal comprising a shell whose external surface is locally galvanized on at minus two separate portions with different finishes, characterized in that the distinctly galvanized portions are separated by a delimitation constituted by non-galvanizable material.
  • a part 10 is galvanized on at least two portions 30, 31 with distinct finishes.
  • Part 10 is advantageously obtained by a conventional injection molding process which makes it possible to obtain practically any shape of part and more specifically by bi injection of a material galvanizable and of a non-galvanizable material.
  • the galvanizable material can for example be a plastic such as Acrylate Butadiene Styrene (ABS) or Acrylate Butadiene Styrene / Poly Carbonate (ABS / PC) which can be attacked by acid baths to allow a deposition of metallic particles and a galvanizing reaction by deposition of salts metallic, as already described.
  • the non-galvanizable material can be example of Poly Carbonate (PC) which is a material resistant to attack by baths acids and therefore does not allow deposition of metal particles and reaction of galvanizing.
  • the injection mold used to constitute the part 10 is suitable for allow bi injection in a specific form (step a).
  • This form is chosen so as to allow the constitution of a border forming a delimitation 15 between the different portions 30, 31 to be galvanized separately according to the expected design.
  • the delimitation 15 is thus incorporated into the volume of the room 10 and can be defined in three dimensions.
  • the number of separate servings to galvanizing is by no means limited to two.
  • the part 10 is galvanized.
  • the part 10 is fully immersed in the acid baths which attack the galvanizable material constituting the portions 30 and 31 of the part 10 but not the non-galvanizable material constituting the delimitation 15. Cavities for metallic deposits will therefore only form on the surfaces of different areas to be galvanized in the room 10.
  • At least one electrode 40 is placed inside a first portion 30 isolated from the other portions 31 by the delimitation 15 (step b). Room 10 is then fully immersed in the metal baths but the reaction of electrolytic galvanizing can only be done on the surface portion 30 of the part in contact with the electrode (s) 40.
  • the invention can be applied to a part for a motor vehicle by galvanized plastic with different finishing areas or at a terminal radiocommunication, such as a radiotelephone or a personal assistant, consisting of a shell whose external surface is locally galvanized on different distinct portions with different finishes separated by a delimitation incorporated into the volume of the room.
  • a terminal radiocommunication such as a radiotelephone or a personal assistant

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)
  • Injection Moulding Of Plastics Or The Like (AREA)
EP02293231A 2002-01-03 2002-12-24 Procédé de galvanisation locale d'une pièce Withdrawn EP1325970A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0200036A FR2834300B1 (fr) 2002-01-03 2002-01-03 Procede de galvanisation locale d'une piece
FR0200036 2002-01-03

Publications (1)

Publication Number Publication Date
EP1325970A1 true EP1325970A1 (fr) 2003-07-09

Family

ID=8871150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02293231A Withdrawn EP1325970A1 (fr) 2002-01-03 2002-12-24 Procédé de galvanisation locale d'une pièce

Country Status (5)

Country Link
US (1) US20040007471A1 (zh)
EP (1) EP1325970A1 (zh)
JP (1) JP2003201594A (zh)
CN (1) CN1323193C (zh)
FR (1) FR2834300B1 (zh)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4915220B2 (ja) * 2006-11-24 2012-04-11 富士通株式会社 携帯端末装置
KR100959878B1 (ko) 2008-05-16 2010-05-27 (주)옵티스 베이스의 부분 도금방법
JP5131842B2 (ja) * 2008-07-30 2013-01-30 株式会社東海理化電機製作所 スイッチ装置
US8911607B2 (en) * 2009-07-30 2014-12-16 Empire Technology Development Llc Electro-deposition of nano-patterns
EP2497637A1 (de) * 2011-03-10 2012-09-12 Bayer MaterialScience AG Transparente, galvanisierbare Kunststoff-Folie für das partielle Galvanisieren
CN108890940A (zh) * 2012-05-14 2018-11-27 汽车专利管理和利用有限公司 塑料制复合材料组件
CN104404585A (zh) * 2014-11-18 2015-03-11 苏州铜盟电气有限公司 一种高性能多方位脉冲挂镀银生产工艺
CA2976459A1 (en) * 2015-02-13 2016-08-18 Amesbury Group, Inc. Weatherstrip having undulating base
US11326268B2 (en) * 2015-05-14 2022-05-10 Lacks Enterprises, Inc. Floating metallized element assembly and method of manufacturing thereof
US11639552B2 (en) * 2015-05-14 2023-05-02 Lacks Enterprises, Inc. Method for creating multiple electrical current pathways on a work piece
US10737530B2 (en) * 2015-05-14 2020-08-11 Lacks Enterprises, Inc. Two-shot molding for selectively metalizing parts
US11408086B2 (en) * 2015-05-14 2022-08-09 Lacks Enterprises, Inc. Method for creating multiple electrical current pathways on a work piece
JP2019026889A (ja) * 2017-07-28 2019-02-21 豊田合成株式会社 めっき部品の製造方法
US11802347B2 (en) * 2018-10-09 2023-10-31 Lacks Enterprises, Inc. 2-shot molded article with multiple electrical current pathways

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256428A2 (en) * 1986-08-15 1988-02-24 AMP-AKZO CORPORATION (a Delaware corp.) Molded metallized plastic articles and processes for making the same
EP1048748A2 (de) * 1999-04-30 2000-11-02 Lydall Gerhardi GmbH & Co.KG Partiell galvanisierbares Polymerenformteil
US20010045361A1 (en) * 2000-05-29 2001-11-29 Luc Boone Process for producing three-dimensional, selectively metallized parts, and three-dimensional, selectively metallized part

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531135A (en) * 1976-06-25 1978-01-07 Nissan Motor Partial plating method of plastics
JPS61118219A (ja) * 1984-11-15 1986-06-05 Sanko Raito Kogyo Kk 円柱状をした非導電性物品の表面を局部的に電着するための狭巾溝の成形方法
US5484516A (en) * 1993-04-09 1996-01-16 Toyoda Gosei Co., Ltd. Resin products and process for producing the same
KR0147976B1 (ko) * 1995-06-30 1998-10-15 배순훈 박막 헤드의 패턴 평탄화 방법
US6036832A (en) * 1996-04-19 2000-03-14 Stork Veco B.V. Electroforming method, electroforming mandrel and electroformed product
US20020197492A1 (en) * 2001-06-25 2002-12-26 Ling Hao Selective plating on plastic components

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256428A2 (en) * 1986-08-15 1988-02-24 AMP-AKZO CORPORATION (a Delaware corp.) Molded metallized plastic articles and processes for making the same
EP1048748A2 (de) * 1999-04-30 2000-11-02 Lydall Gerhardi GmbH & Co.KG Partiell galvanisierbares Polymerenformteil
US20010045361A1 (en) * 2000-05-29 2001-11-29 Luc Boone Process for producing three-dimensional, selectively metallized parts, and three-dimensional, selectively metallized part

Also Published As

Publication number Publication date
CN1429933A (zh) 2003-07-16
FR2834300A1 (fr) 2003-07-04
JP2003201594A (ja) 2003-07-18
US20040007471A1 (en) 2004-01-15
FR2834300B1 (fr) 2004-02-27
CN1323193C (zh) 2007-06-27

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