GB1064295A - Improvements in or relating to electroplating - Google Patents
Improvements in or relating to electroplatingInfo
- Publication number
- GB1064295A GB1064295A GB35313/63A GB3531363A GB1064295A GB 1064295 A GB1064295 A GB 1064295A GB 35313/63 A GB35313/63 A GB 35313/63A GB 3531363 A GB3531363 A GB 3531363A GB 1064295 A GB1064295 A GB 1064295A
- Authority
- GB
- United Kingdom
- Prior art keywords
- current density
- metal
- acid
- hydrogen overvoltage
- electroplating
- 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
Links
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
- C25D5/02—Electroplating of selected surface areas
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S204/00—Chemistry: electrical and wave energy
- Y10S204/07—Current distribution within the bath
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)
- Electroplating And Plating Baths Therefor (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
In electroplating a shaped article of a relatively high hydrogen overvoltage metal having because of differences in geometry or accessibility one or more regions of non-plating relatively low current density, etching is prevented in the low current density regions by coating them or placing them in intimate electrical contact with a relatively low hydrogen overvoltage metal having an overvoltage of less than 0.33 volt at a current density of 0.1 amp/dm2 as defined in (The Corrosion Handbook by H. Uhlig, John Wiley 1948). The low hydrogen overvoltage metal may be applied to the low current density areas (a) from an aqueous solution containing the metal in ionic form by spraying, brushing, contacting, dipping, wicking, electroless or electrolytic plating, or by applying a paste containing such a solution or (b) from an organic solvent solution of compounds of the metal or a foramions sheet of or coated with such a metal may be pressed against the low current density areas. Specified low hydrogen overvoltage metals are platinum, palladium, rhodium, iridium, gold, black nickel and electroless nickel and the process is described as applied to electroplating ferrous articles with chromium or nickel. In a specific example the inside of a steel pipe after vapour degreasing, anodic cleaning in alkali and acid dip brushed over with an aqueous solution containing 4 g/1 palladium chloride and 20 g/1 sodium chloride and acidified to pH 1.5 with hydrochloric acid. The pipe was then anodically cleaned in a 200 g/1 chromic acid bath at a current density of 14.4 amps/dm2 of external surface and was then cathodically plated in an aqueous chromic acid bath at approx. 58 DEG C. containing sulphuric acid and potassium silicofluoride using lead alloy anodes containing 4% tin with a cathode current density of 49 amps/dm2. The inside of the pipe was neither plated nor etched. Examples of other low hydrogen overvoltage metal solutions are aqueous solutions containing 2.5 g/1 chloroplatinic acid or 4 g/1 hydrated chloroauric acid. Pastes are also described comprising 1 to 2 g/1 rhodium chloride or 2.5 to 4 g/1 chloroiridic acid thickened with silica gel, methyl cellulose, polyvinyl alcohol, gelatine, or agar-agar.
Applications Claiming Priority (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22187962A | 1962-09-06 | 1962-09-06 | |
US29191763A | 1963-07-01 | 1963-07-01 | |
US29192563A | 1963-07-01 | 1963-07-01 | |
US29198763A | 1963-07-01 | 1963-07-01 | |
US29196063A | 1963-07-01 | 1963-07-01 | |
US291986A US3350287A (en) | 1962-09-06 | 1963-07-01 | Method of preventing etch on cast iron in plating baths |
US291988A US3415723A (en) | 1962-09-06 | 1963-07-01 | Method of stop-off of cathode pieces in chromium plating baths |
US72595668A | 1968-05-01 | 1968-05-01 | |
US75410568A | 1968-08-13 | 1968-08-13 | |
US78604068A | 1968-12-23 | 1968-12-23 | |
US82113569A | 1969-05-01 | 1969-05-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1064295A true GB1064295A (en) | 1967-04-05 |
Family
ID=27582736
Family Applications (7)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35313/63A Expired GB1064295A (en) | 1962-09-06 | 1963-09-06 | Improvements in or relating to electroplating |
GB10695/64A Expired GB1063781A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating |
GB10693/64A Expired GB1064296A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating |
GB10697/64A Expired GB1064443A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating |
GB10696/64A Expired GB1063503A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating on cast iron |
GB10698/64A Expired GB1063782A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating |
GB10694/64A Expired GB1064297A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating onto steel or iron |
Family Applications After (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10695/64A Expired GB1063781A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating |
GB10693/64A Expired GB1064296A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating |
GB10697/64A Expired GB1064443A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating |
GB10696/64A Expired GB1063503A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating on cast iron |
GB10698/64A Expired GB1063782A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating |
GB10694/64A Expired GB1064297A (en) | 1962-09-06 | 1964-03-13 | Improvements in or relating to electroplating onto steel or iron |
Country Status (7)
Country | Link |
---|---|
US (6) | US3415723A (en) |
JP (1) | JPS4820971B1 (en) |
CH (5) | CH477562A (en) |
DE (2) | DE1496894A1 (en) |
GB (7) | GB1064295A (en) |
NL (1) | NL297569A (en) |
SE (2) | SE339153B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2351089A (en) * | 1999-06-15 | 2000-12-20 | Hong Kong Productivity Council | Platinum electroforming/electroplating using haloplatinics |
US20160333480A1 (en) * | 2015-05-13 | 2016-11-17 | Dan Porodo | Metallic alloy coating system and method |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1277642B (en) * | 1964-01-14 | 1968-09-12 | Bayer Ag | Process for the protection of metallic surfaces against metal deposition in chemical metallization baths |
US3525676A (en) * | 1967-12-20 | 1970-08-25 | M & T Chemicals Inc | Corrosion inhibition |
US3970537A (en) * | 1973-07-11 | 1976-07-20 | Inland Steel Company | Electrolytic treating apparatus |
US3901771A (en) * | 1973-07-11 | 1975-08-26 | Inland Steel Co | One-side electrocoating |
US3880725A (en) * | 1974-04-10 | 1975-04-29 | Rca Corp | Predetermined thickness profiles through electroplating |
US3959099A (en) * | 1975-06-18 | 1976-05-25 | Inland Steel Company | Electrolytic method of producing one-side-only coated steel |
US4043891A (en) * | 1976-01-14 | 1977-08-23 | Bell Telephone Laboratories, Incorporated | Electrolytic cell with bipolar electrodes |
JPS5321048A (en) * | 1976-08-10 | 1978-02-27 | Nippon Electric Co | Constant current density plating device |
US4071429A (en) * | 1976-12-29 | 1978-01-31 | Monsanto Company | Electrolytic flow-cell apparatus and process for effecting sequential electrochemical reaction |
US4292159A (en) * | 1977-11-21 | 1981-09-29 | Olin Corporation | Cell having in situ reduction of electrode overvoltage |
US4378282A (en) * | 1981-06-25 | 1983-03-29 | Napco, Inc. | High speed plating of flat planar workpieces |
US4378281A (en) * | 1981-06-25 | 1983-03-29 | Napco, Inc. | High speed plating of flat planar workpieces |
US4545873A (en) * | 1982-01-19 | 1985-10-08 | Ciba-Geigy Ag | Vessel for an unstable solution of a metal salt or complex and method for sealing such vessel |
US5122256A (en) * | 1991-05-24 | 1992-06-16 | Waskiewicz Walter P | Method for selectively coating surfaces of components |
US5173170A (en) * | 1991-06-03 | 1992-12-22 | Eco-Tec Limited | Process for electroplating metals |
DE4442792A1 (en) * | 1994-12-01 | 1996-06-05 | Teves Gmbh Alfred | Process for the production of a corrosion and wear protective oxide layer with a locally reduced layer thickness on the metal surface of a workpiece |
US6090260A (en) * | 1997-03-31 | 2000-07-18 | Tdk Corporation | Electroplating method |
US6071388A (en) * | 1998-05-29 | 2000-06-06 | International Business Machines Corporation | Electroplating workpiece fixture having liquid gap spacer |
US6039858A (en) | 1998-07-22 | 2000-03-21 | International Business Machines Corporation | Plating process for x-ray mask fabrication |
US6197664B1 (en) | 1999-01-12 | 2001-03-06 | Fujitsu Limited | Method for electroplating vias or through holes in substrates having conductors on both sides |
US6193860B1 (en) * | 1999-04-23 | 2001-02-27 | Vlsi Technolgy, Inc. | Method and apparatus for improved copper plating uniformity on a semiconductor wafer using optimized electrical currents |
GB2383337A (en) * | 2001-12-21 | 2003-06-25 | Accentus Plc | Electroplating plant and method |
US6923252B2 (en) * | 2003-04-17 | 2005-08-02 | The Regents Of The University Of California | Borehole sounding device with sealed depth and water level sensors |
US20080169199A1 (en) * | 2007-01-17 | 2008-07-17 | Chang Gung University | Trivalent chromium electroplating solution and an electroplating process with the solution |
US20090211914A1 (en) * | 2008-02-21 | 2009-08-27 | Ching-An Huang | Trivalent Chromium Electroplating Solution and an Operational Method Thereof |
CN103088373A (en) * | 2011-10-31 | 2013-05-08 | 肖云捷 | Effective method for preventing scorching in electroplating process |
CN103122470B (en) * | 2011-11-17 | 2015-12-09 | 符士正 | Automobile cast iron die plating solution |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2031185A (en) * | 1936-02-18 | Positive screen image | ||
US499726A (en) * | 1893-06-20 | Production of alloys by electro-deposition | ||
US485343A (en) * | 1892-11-01 | Method of and apparatus for electro-deposition of metals | ||
US644029A (en) * | 1899-08-28 | 1900-02-20 | Sherard O Cowper-Coles | Process of electrodeposition of metals. |
US1055327A (en) * | 1908-11-27 | 1913-03-11 | Carl Hering | Means for preventing corrosion of underground metallic structures. |
GB191325393A (en) * | 1913-11-06 | 1914-06-11 | Sherard Osborn Cowper-Coles | An Improved Process for Obtaining Adhesive Coatings of Copper upon Iron and Steel. |
US1465034A (en) * | 1921-11-03 | 1923-08-14 | Frank L Antisell | Process for the electrolytic deposition of copper |
US1750418A (en) * | 1928-12-05 | 1930-03-11 | Wadsworth Watch Case Co | Etching and decorating metal surfaces |
US2044431A (en) * | 1932-03-05 | 1936-06-16 | Anaconda Copper Mining Co | Method of electroplating metal |
GB401933A (en) * | 1933-02-21 | 1933-11-23 | Henderik Van Der Horst | A new or improved method of providing a hard wearing surface in the cylinder bores of internal combustion engines |
US2367314A (en) * | 1941-06-24 | 1945-01-16 | Western Electric Co | Electrolytic method of coating localized areas of articles |
DE924180C (en) * | 1942-07-03 | 1955-02-28 | Messerschmitt Boelkow Blohm | Device for removing contaminants that have accumulated on valve cones, especially on exhaust valves of internal combustion engines, during operation |
US2422242A (en) * | 1943-07-16 | 1947-06-17 | Wright Aeronautical Corp | Electroplating fixture |
US2508523A (en) * | 1946-09-11 | 1950-05-23 | Krebs & Co | Device for the protection of the cathodes of electrolytic cells |
DE1013938B (en) * | 1954-05-22 | 1957-08-14 | Schoch Hartchrom G M B H Geb | Method and device for the galvanic deposition of metal coatings, in particular for hard chrome plating |
US2784151A (en) * | 1955-03-25 | 1957-03-05 | Tiarco Corp | Electrodeposition |
US3014851A (en) * | 1959-06-05 | 1961-12-26 | Savage Plating & Anodizing Co | Process for plating a selective surface within a groove |
US3041257A (en) * | 1960-08-25 | 1962-06-26 | Westinghouse Electric Corp | Chromium electroplating |
FR1288919A (en) * | 1961-02-17 | 1962-03-30 | Coussinets Ste Indle | Single-sided electroplating process |
-
0
- NL NL297569D patent/NL297569A/xx unknown
-
1963
- 1963-07-01 US US291988A patent/US3415723A/en not_active Expired - Lifetime
- 1963-07-01 US US291986A patent/US3350287A/en not_active Expired - Lifetime
- 1963-09-05 CH CH1233168A patent/CH477562A/en not_active IP Right Cessation
- 1963-09-05 CH CH1098763A patent/CH479716A/en not_active IP Right Cessation
- 1963-09-05 CH CH1233068A patent/CH477561A/en not_active IP Right Cessation
- 1963-09-05 CH CH1232968A patent/CH493644A/en not_active IP Right Cessation
- 1963-09-05 DE DE19631496894 patent/DE1496894A1/en active Pending
- 1963-09-06 SE SE09807/63A patent/SE339153B/xx unknown
- 1963-09-06 GB GB35313/63A patent/GB1064295A/en not_active Expired
- 1963-10-28 JP JP38057330A patent/JPS4820971B1/ja active Pending
- 1963-11-21 DE DE19631496895 patent/DE1496895A1/en active Pending
- 1963-12-04 CH CH1480563A patent/CH467868A/en unknown
-
1964
- 1964-02-19 SE SE2022/64A patent/SE310970B/xx unknown
- 1964-03-13 GB GB10695/64A patent/GB1063781A/en not_active Expired
- 1964-03-13 GB GB10693/64A patent/GB1064296A/en not_active Expired
- 1964-03-13 GB GB10697/64A patent/GB1064443A/en not_active Expired
- 1964-03-13 GB GB10696/64A patent/GB1063503A/en not_active Expired
- 1964-03-13 GB GB10698/64A patent/GB1063782A/en not_active Expired
- 1964-03-13 GB GB10694/64A patent/GB1064297A/en not_active Expired
-
1968
- 1968-05-01 US US725956A patent/US3573175A/en not_active Expired - Lifetime
- 1968-08-13 US US754105A patent/US3511758A/en not_active Expired - Lifetime
- 1968-12-23 US US786040A patent/US3477920A/en not_active Expired - Lifetime
-
1969
- 1969-05-01 US US821135A patent/US3702809A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2351089A (en) * | 1999-06-15 | 2000-12-20 | Hong Kong Productivity Council | Platinum electroforming/electroplating using haloplatinics |
GB2351089B (en) * | 1999-06-15 | 2001-04-18 | Hong Kong Productivity Council | Platinum electroforming/electroplating bath and method |
US20160333480A1 (en) * | 2015-05-13 | 2016-11-17 | Dan Porodo | Metallic alloy coating system and method |
US9752232B2 (en) * | 2015-05-13 | 2017-09-05 | Dan Porodo | Method of electrolessly plating nickel on tubulars |
Also Published As
Publication number | Publication date |
---|---|
GB1063781A (en) | 1967-03-30 |
DE1496894A1 (en) | 1969-08-14 |
GB1064443A (en) | 1967-04-05 |
GB1064297A (en) | 1967-04-05 |
SE339153B (en) | 1971-09-27 |
US3573175A (en) | 1971-03-30 |
JPS4820971B1 (en) | 1973-06-25 |
NL297569A (en) | |
US3477920A (en) | 1969-11-11 |
US3415723A (en) | 1968-12-10 |
US3350287A (en) | 1967-10-31 |
US3702809A (en) | 1972-11-14 |
GB1063503A (en) | 1967-03-30 |
CH479716A (en) | 1969-10-15 |
DE1496895A1 (en) | 1969-09-18 |
SE310970B (en) | 1969-05-19 |
CH467868A (en) | 1969-01-31 |
CH493644A (en) | 1970-07-15 |
GB1064296A (en) | 1967-04-05 |
CH477562A (en) | 1969-08-31 |
US3511758A (en) | 1970-05-12 |
GB1063782A (en) | 1967-03-30 |
CH477561A (en) | 1969-08-31 |
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