GB2338715A - Electrilytic deposition of metal int grooves - Google Patents
Electrilytic deposition of metal int grooves Download PDFInfo
- Publication number
- GB2338715A GB2338715A GB9813671A GB9813671A GB2338715A GB 2338715 A GB2338715 A GB 2338715A GB 9813671 A GB9813671 A GB 9813671A GB 9813671 A GB9813671 A GB 9813671A GB 2338715 A GB2338715 A GB 2338715A
- Authority
- GB
- United Kingdom
- Prior art keywords
- article
- metal
- gold
- electrically conductive
- groove member
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 51
- 239000002184 metal Substances 0.000 title claims abstract description 51
- 230000008021 deposition Effects 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 30
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052737 gold Inorganic materials 0.000 claims abstract description 24
- 239000010931 gold Substances 0.000 claims abstract description 24
- 239000010437 gem Substances 0.000 claims abstract description 21
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 15
- 150000002739 metals Chemical class 0.000 claims abstract description 14
- 229910052709 silver Inorganic materials 0.000 claims abstract description 14
- 239000004332 silver Substances 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 8
- 238000000151 deposition Methods 0.000 claims abstract description 6
- 238000005323 electroforming Methods 0.000 claims abstract description 6
- 239000011521 glass Substances 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims abstract description 4
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims abstract description 4
- 239000005060 rubber Substances 0.000 claims abstract description 4
- 239000001993 wax Substances 0.000 claims abstract description 4
- 239000002023 wood Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000012815 thermoplastic material Substances 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 2
- OBACEDMBGYVZMP-UHFFFAOYSA-N iron platinum Chemical compound [Fe].[Fe].[Pt] OBACEDMBGYVZMP-UHFFFAOYSA-N 0.000 abstract 1
- 229910021645 metal ion Inorganic materials 0.000 abstract 1
- 229910001751 gemstone Inorganic materials 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 238000009713 electroplating Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000579895 Chlorostilbon Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- -1 but not limited to Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052876 emerald Inorganic materials 0.000 description 1
- 239000010976 emerald Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NRTDAKURTMLAFN-UHFFFAOYSA-N potassium;gold(3+);tetracyanide Chemical compound [K+].[Au+3].N#[C-].N#[C-].N#[C-].N#[C-] NRTDAKURTMLAFN-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C27/00—Making jewellery or other personal adornments
-
- 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
- C25D5/02—Electroplating of selected surface areas
-
- 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
-
- 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
-
- 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
- C25D7/005—Jewels; Clockworks; Coins
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
A method of depositing a metal, e.g. gold, on an article 12, e.g. a gem, includes the steps of providing an article having a surface with a number of troughs 16; applying a layer of electrically conductive material 20, eg a silver solution along the troughs; placing the article into an electrically conductive solution containing metal ions in a container of an electro-forming machine; and passing an electric current through the solution to deposit metal 22 onto the layer of electrically conductive material of the troughs, and thereby onto the article. The electrically conductive material may also be gold or copper. The metal electrolytically deposited may be gold, platinum, silver, copper, karat gold or alloys of these metals. The article being coated may be of gold, silver, copper, iron platinum, karat gold, precious stones, semi-precious stones, artificial precious stones, rubber, plastics materials, glass, rock, wood, wax or porcelain. The troughs may be formed by cutting or engraving with the use of a laser.
Description
A Method offloRositing A Metal on An Article 2338715 This invention rel to
a method of depositing a metal on an article and, in particular, such an article made of a variety of materials.
In the production of jewellery afficlas or items for dccomtion purposes, it is a cominon practice to apply one or more metal, e.g. such precious and semi-precious metals as gold, silver, platinum, copper, and karat gold, and alloys of the above metals, onto a base article, in order to enhance their value and aesthetic quality. Existing methods include welding, electroplating and adhering such metals onto the base article. 7here are, however, limitations associated with such methods. Wcldhig is cleasly not applicable in situations where the base article is made of a material which will break up or melt when heated in the welding process. Regarding electroplating, there is a limit as to the thickness of metal that can he electroplated onto the base article, since electroplating the article for an excessive period of time will ruin its quality. As to adhering, it is necessary first to form the metal into the required shape or pattern before applying it onto the article. It may not be possible, or at least easy, to form complicated patterns and shapes with certain metals.
It is therefore an object of the presont invention to provide a method of depositing a metal on an article in which the aforesaid shortcomings are mitigated, or at least to provide a useful alternative to the public. It is a furthcr object of ihe preseni invention to provide an article deposited with a metal by such a method, According to a first aspect of the present invention, there is provided a method of 2 depositing a meW on an article. comprising the steps of (a) providing an article having at least one surface with at least one groove member thereon; (b) applying an electrically conductive material along at least part of said groove member; (c) placing said article into an electrically conductive solution containing said metal; and (d) passing an electric current through said solution to thereby deposit said metal onto said electrically conductive material along said part of said groove member.
Advantageously, said metal may be selected from a group comprising gold, platinum, silver, copper, karat gold and alloys of these metals.
Conveniently, said article may be made of at least one material selected from a group comprising metals, including but not limited to gold, silver, copper, iron, platinum, kaxat gold and alloys of these metals, precious stones, semi-precious stones, artillcial precious stones, rubber, plastics materials, including thermoplastic and thermosetting materials, glass, rock, wood, wax and porcelain.
Suitably, said electrically conductive material may comprise a solution containing at least one metal.
Said electrically conductive matefial may advantageously comprise a solution containing at least one metal selected from a group comprising gold, silver and copper.
Said method may conveniently further comprise the steps of (c) providing an article 3 having at least one surface; and (f) forming at least one groove member on aaici surface.
Said article may suitably be cut or engraved, e.g. by laser, to form said groove member on said surface thereof.
Advantageously, said groove member may be of a depth of subtially O.Olmm to Smm.
Conveniently, said metal may be deposited in said groove member to at least fill up said groove member- Suitably, said elecuically conductive solution containing said metal Inio wbIch said article is placed may be contained in a container of an electro-forming machine.
According to a second aspwt of the present invention, there is provided an article deposited with a metal by any of the png methods.
The invention will now be described by way of an example and with reference to the accompanying drawings, in which:- Fig. 1 is a top view of an article with a number of troughs into which a metal is to he deposited by a method according to the prownt invention; 4 Fig. 2 is a sectional view taken along the line A-A in Fig. 1 Fig. 3 is an enlarged view of the encircled pW in Fig. 2; Fig. 4 is the same part as shown in Fig. 3, with the trough filled with the meW, As shown in Figs. 1 and 2, a base article to be deposited with a metal by a method according to the present invention is shown generally as 10. The base article 10 may he made of a wide variety of materials, including metals (including, but not limited to, gold, silver, copper, iron, platinum, karat gold and alloys of these metals), precious stones, semi- precious stones, anificial precious 3tones, rubber, plastics materials, including thermoplastic and thermosetting materials, glass, rock, wood, wax and porcelain. An artificial gem 12 is used for the purpose of the present illustreion- A surface design is then made out for the gem 12. In the present example, the design includes a pair of perpendicular lin" 14. To apply such a design on the gem 12, a pair of perpendicular troughs 16 are formed on the surface 18 of the g= 12. Such troughs 16 are each of a depth of O. Olmm to Stain. As to the width of the troughs 16, such depends very much on the size of the gem 12 and the design to he applied onto the surface 19 of the gem 12.
Depending on the material with which the base article 10 is made of, a number of methods may be used for the formation of the troughs 16. If the base article 10 is formed by moulding, e.g. by injection moulding or cast moulding, ridges corresponding to the troughs 16 may be provided in appropriate positionú of the moulds, so that troughs 16 appear in the base article 10. On the other hand, for base article 10 made of naturally occurring materials, such as in the case of natural ruby, sapphire or emerald. the troughs 16 may he formed by cutting or engraving the surfa= of the base article 10, e.g. by laser.
A layer of electrically conductive material 20 is then applied on the surfaecs of the troughs 16. lle electrically conductive material may be a conductive silver solution Caded by Degussa AG (of Germany) under the name Conductive Silver 200 with a Product No. of 6200 0007. The electrically conductive material 20 may also be gold or copper powder dissolved in a lac;q= and thinner. The electrically conductive material 20 serves as an electrode for use in the subsequent process.
The gem 12 is then inserted into a tank of an electro-forming machine for deposition of a metal thereon. Such a machinc may he one traded by Sansha Electric Wg. Co., Ltd. (of Japan) under the narne SuRex DC AUTO (Trade Mark). The tank of the electro-forming machine contains an elcally conductive solution containing at least (i) a bnightener (e.g. one traded by Chartermate International Limited under the name ELCONEL 100-24K); (R) a mAc up solution (e.g. one traded by Elix Chemie under the Trade Mark "ELM' and the n=e ELCONEL 100-24K); and (iii) metal to be deposited into the troughs 16. llhe metals which may be deposited by the present method include gold, platinum, silver, copper, karat gold and alloys of these metals. If gold is to be deposited into the troughs 16, and thus onto the layer of electrically conductive material 20, gold potassium cyanide in the form of fine powder is added 6 into the electrically conductive solution in the tank of the electro- forming machine.
A direct electric current is then passed through the electrically conductive solution to thereby deposit the metal onto the layer of electrically conductive material 20, which acts as an electrode. Depending on the amount of metal intended to be so deposited, the gem 12 may be placed and treated in the tank of the clectro-forming machine for four (4) hours zo thirty (30) hours. As shown in Fig. 4, metal 22 may be deposited in the troughs 16 until such are filled with the metal 22.
After treatment of the gem 12 in the tank, the gem 12 is then cleaned with water. ne surface of the metal 22 may then be polished. c-p.. to remove unwanted deposit- Wax is then applied onto the gem 12, including the surface of the metal 22, to increase it brightness.
The method according to the present invention is very versatile as it is applicable to base articles 10 madc of virtually any materials. It is also clear that as the troughs 16 can he formed on the surface 18 of the article 10 in a number of ways, a large number of designs, including very complicated ones, can be applied onto the articles 10.
It should be noted that the above only illustrates an example whereby the present invention may be carried out, and that various modifications and alterations may be made thereto without departing from the spirit of the invention.
Claims (1)
- CLAIMS:-1. A method of depositing a metal on an article, comprising the steps of, (a) providing an anicle having at least one surface with at least one groove member thercon; (b) applying an electrically conductive material along at least part of said groove member, (c) placing said article into an electrically conductive solution containing said metal; and (d) passing an electric current through said solution to thereby deposit said inetal onto said electrically conductive material along said part of said groove member.7 2. A method according to Clami 1 whercin said metal is selected from a group comprising gold, platinum, silver, copper, karat gold and alloys of these metals.3. A method according to Claim 1 or 2 wherein said article is made of at least one material selected from a group comprising metals. gold, silver. copper, iron, platinum, karat gold and alloys of these metals, prccious stones, scmi-precious stones, artificial precious stones. rubber, plastics materials, thermoplastic materials. thermosetting materials, glass, rock, wood, wax and porcelain.4. A method according to any of the preceding claims wherein said electrically conductive material comprises a solution containing at leut one metal.8 5. A method according to Claim 4 whemin 3aid clectrically conductive rial comprises a solution containing at least one metal selected from a group comprising gold, silver and copper.6. A method according to any of the preeweding claims wherein said method further comprises the steps of.'- (c) providing an article having at least one surface; and (f) forming at least one groove member on said surface.7. A method according to Claim 6 wherein said aiticle is cut or engraved to form said groove member on said surface thereof.g. A method according to Claim 7 wherein said article is rut or engraved by laser to fonn said groove member- 9. A method ew-cording to any of the preceding claims wherein said groove member is of a depth of subtially 0,0 1 mm to Sn=.10. A method according to any of the preceding claims wherein said metal is deposited in said groove member to at least fill up said groove member.11. A method according to any of the preceding claims wherein said electrically conductive solution containing said metal tnto which said article is placed is contained in a container of an electro-forming machine.9 12. An article deposited with a metal by a method according to any of the preceding claims.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9813671A GB2338715B (en) | 1998-06-24 | 1998-06-24 | A method of depositing a metal on an article |
| HK00103979.9A HK1026928B (en) | 2000-06-29 | A method of depositing a metal on an article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9813671A GB2338715B (en) | 1998-06-24 | 1998-06-24 | A method of depositing a metal on an article |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| GB9813671D0 GB9813671D0 (en) | 1998-08-26 |
| GB2338715A true GB2338715A (en) | 1999-12-29 |
| GB2338715A8 GB2338715A8 (en) | 2001-04-23 |
| GB2338715B GB2338715B (en) | 2003-03-19 |
Family
ID=10834328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9813671A Expired - Fee Related GB2338715B (en) | 1998-06-24 | 1998-06-24 | A method of depositing a metal on an article |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2338715B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPD20090034A1 (en) * | 2009-03-02 | 2010-09-03 | Aura S R L L | DEVICE FOR IMPROVING THE PHYSICAL PERFORMANCE AND THE ABILITY TO MAINTAIN THE BALANCE OF AN INDIVIDUAL, AND A RELATIVE MANUFACTURING METHOD |
| WO2012041382A1 (en) * | 2010-09-30 | 2012-04-05 | Beat Schild-Kessler | Jewelry object and arrangement of a jewelry object and a remaining piece |
| CN108468073A (en) * | 2018-06-22 | 2018-08-31 | 成都高赛尔股份有限公司 | A kind of method of spherical surface plating noble metal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2847370A (en) * | 1956-09-18 | 1958-08-12 | Chas D Briddell Inc | Method of ornamentation |
| US4683036A (en) * | 1983-06-10 | 1987-07-28 | Kollmorgen Technologies Corporation | Method for electroplating non-metallic surfaces |
| GB2260790A (en) * | 1991-10-23 | 1993-04-28 | Glacier Metal Co Ltd | Making bearings |
| US5328588A (en) * | 1993-03-19 | 1994-07-12 | Samuel Hopkins | Method of inlaying metals in non-conductive materials |
| GB2274853A (en) * | 1993-01-29 | 1994-08-10 | Mec Co Ltd | Process for electroplating nonconductive surface e.g through holes in print wiring board |
| GB2277745A (en) * | 1993-04-20 | 1994-11-09 | Enthone Omi | Post activator solution for use in electroplating non-conductive substrates e.g in plating through holes in PCB,s |
| US5403467A (en) * | 1992-01-29 | 1995-04-04 | Bayer Ag | Process for through-hole plating of two-layer circuit boards and multilayers |
| US5681441A (en) * | 1992-12-22 | 1997-10-28 | Elf Technologies, Inc. | Method for electroplating a substrate containing an electroplateable pattern |
-
1998
- 1998-06-24 GB GB9813671A patent/GB2338715B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2847370A (en) * | 1956-09-18 | 1958-08-12 | Chas D Briddell Inc | Method of ornamentation |
| US4683036A (en) * | 1983-06-10 | 1987-07-28 | Kollmorgen Technologies Corporation | Method for electroplating non-metallic surfaces |
| GB2260790A (en) * | 1991-10-23 | 1993-04-28 | Glacier Metal Co Ltd | Making bearings |
| US5403467A (en) * | 1992-01-29 | 1995-04-04 | Bayer Ag | Process for through-hole plating of two-layer circuit boards and multilayers |
| US5681441A (en) * | 1992-12-22 | 1997-10-28 | Elf Technologies, Inc. | Method for electroplating a substrate containing an electroplateable pattern |
| GB2274853A (en) * | 1993-01-29 | 1994-08-10 | Mec Co Ltd | Process for electroplating nonconductive surface e.g through holes in print wiring board |
| US5328588A (en) * | 1993-03-19 | 1994-07-12 | Samuel Hopkins | Method of inlaying metals in non-conductive materials |
| GB2277745A (en) * | 1993-04-20 | 1994-11-09 | Enthone Omi | Post activator solution for use in electroplating non-conductive substrates e.g in plating through holes in PCB,s |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPD20090034A1 (en) * | 2009-03-02 | 2010-09-03 | Aura S R L L | DEVICE FOR IMPROVING THE PHYSICAL PERFORMANCE AND THE ABILITY TO MAINTAIN THE BALANCE OF AN INDIVIDUAL, AND A RELATIVE MANUFACTURING METHOD |
| WO2010100587A1 (en) * | 2009-03-02 | 2010-09-10 | L'aura S.R.L. | Device for improving an individual's physical performance and ability to maintain balance, and method for manufacturing thereof |
| CN102438471A (en) * | 2009-03-02 | 2012-05-02 | 格里姆有限公司 | Device for improving physical activity and maintaining balance in an individual and method for producing the same |
| WO2012041382A1 (en) * | 2010-09-30 | 2012-04-05 | Beat Schild-Kessler | Jewelry object and arrangement of a jewelry object and a remaining piece |
| DE112010005917B4 (en) | 2010-09-30 | 2018-03-22 | Beat Schild-Kessler | Jewelery object and arrangement of a jewelery object and a remnant piece |
| CN108468073A (en) * | 2018-06-22 | 2018-08-31 | 成都高赛尔股份有限公司 | A kind of method of spherical surface plating noble metal |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2338715A8 (en) | 2001-04-23 |
| GB2338715B (en) | 2003-03-19 |
| GB9813671D0 (en) | 1998-08-26 |
| HK1026928A1 (en) | 2000-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20090624 |