ES339183A2 - Method of electrodepositing microcrack chromium coatings - Google Patents
Method of electrodepositing microcrack chromium coatingsInfo
- Publication number
- ES339183A2 ES339183A2 ES339183A ES339183A ES339183A2 ES 339183 A2 ES339183 A2 ES 339183A2 ES 339183 A ES339183 A ES 339183A ES 339183 A ES339183 A ES 339183A ES 339183 A2 ES339183 A2 ES 339183A2
- Authority
- ES
- Spain
- Prior art keywords
- cracking
- plating
- bright
- bath
- electrolytically
- 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
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- 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
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
-
- 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
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
- C25D5/611—Smooth layers
-
- 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
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/625—Discontinuous layers, e.g. microcracked layers
-
- 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
- C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
-
- 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
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/934—Electrical process
- Y10S428/935—Electroplating
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12472—Microscopic interfacial wave or roughness
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
- Y10T428/12826—Group VIB metal-base component
- Y10T428/12847—Cr-base component
- Y10T428/12854—Next to Co-, Fe-, or Ni-base component
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
A micro-cracked Cr coating (i.e. one having cracks spaced from one another by 10-50 microns) is produced on an object by electrolytically depositing an intermediate Ni layer in such a manner that during subsequent electro-plating of the Cr the Ni and Cr simultaneously micro-crack. The Ni plating is carried out in an aqueous acid Ni bath at a maximum temperature of 35 DEG C. and a current density between 1 and 15 A/dm2, the bath comprising on the one hand nickel chloride, sulphamate or fluoborate and on the other hand one or more of ammonium acetate and of the following acids and their nickel salts:- acetic, gluconic, tartaric, formic, malic, lactic, citric and succinic acids. Prior to electro-plating with the cracking Ni, the object may be degreased and be plated with Cu, brass or dull, levelling, semi-bright or bright Ni. The cracking Ni electrolyte may contain a brightening agent which is a sulphonate, sulphonamide or sulphonimide of an aromatic compound (e.g. saccharine), butyne 1-4 diol, or an amino derivative of a heterocyclic compound (e.g. 2-amino-thiazole) or a Co salt. During the plating, of the cracking Ni, impurities may be removed from the electrolyte by known methods, e.g. electrolytically. When cracking- Ni is to be plated on bright Ni, the bright Ni may be depassivated electrolytically in a bath containing NaOH, Na2CO3 and NaCN. Conventional Cr plating baths may be used comprising as catalysts the sulphuric, hydrofluoric and fluosilicic ions. The use of Cr baths containing Se and of Ni baths containing particles which are insoluble in the Ni is said to be not incompatible with the use of the cracking deposits specified above.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR991133A FR1447970A (en) | 1964-10-12 | 1964-10-12 | Corrosion resistant decorative chrome deposits |
| FR996104A FR88318E (en) | 1964-10-12 | 1964-11-24 | Corrosion resistant decorative chrome deposits |
| FR3489A FR89217E (en) | 1964-10-12 | 1965-01-27 | Corrosion resistant decorative chrome deposits |
| FR11348A FR89657E (en) | 1964-10-12 | 1965-03-31 | Corrosion resistant decorative chrome deposits |
| FR57477A FR90417E (en) | 1964-10-12 | 1966-04-13 | Corrosion resistant decorative chrome deposits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES339183A2 true ES339183A2 (en) | 1968-04-16 |
Family
ID=27514668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES339183A Expired ES339183A2 (en) | 1964-10-12 | 1967-04-12 | Method of electrodepositing microcrack chromium coatings |
Country Status (13)
| Country | Link |
|---|---|
| US (3) | US3388049A (en) |
| JP (2) | JPS5024248B1 (en) |
| AT (1) | AT276893B (en) |
| BE (2) | BE670116A (en) |
| BR (1) | BR6788420D0 (en) |
| CH (1) | CH445999A (en) |
| DE (2) | DE1496974B2 (en) |
| ES (1) | ES339183A2 (en) |
| FR (5) | FR1447970A (en) |
| GB (2) | GB1122795A (en) |
| NL (2) | NL140902B (en) |
| OA (1) | OA117E (en) |
| SE (2) | SE327875B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3471271A (en) * | 1965-08-16 | 1969-10-07 | Udylite Corp | Electrodeposition of a micro-cracked corrosion resistant nickel-chromium plate |
| US3528894A (en) * | 1966-08-25 | 1970-09-15 | M & T Chemicals Inc | Method of electrodepositing corrosion resistant coating |
| US3474010A (en) * | 1966-10-26 | 1969-10-21 | M & T Chemicals Inc | Method of electroplating corrosion resistant coating |
| US3866289A (en) * | 1969-10-06 | 1975-02-18 | Oxy Metal Finishing Corp | Micro-porous chromium on nickel-cobalt duplex composite plates |
| GB1541118A (en) * | 1976-12-03 | 1979-02-21 | Bnf Metals Tech Centre | Nickel plating |
| JPS54119436U (en) * | 1978-02-09 | 1979-08-21 | ||
| US4416738A (en) * | 1980-01-28 | 1983-11-22 | The Boeing Company | Chromium plating |
| US4384929A (en) * | 1981-07-06 | 1983-05-24 | Occidental Chemical Corporation | Process for electro-depositing composite nickel layers |
| US4432843A (en) * | 1982-07-29 | 1984-02-21 | Omi International Corporation | Trivalent chromium electroplating baths and processes using thiazole addition agents |
| JPH02116220U (en) * | 1989-03-04 | 1990-09-18 | ||
| DE69607130T2 (en) * | 1995-12-29 | 2000-10-19 | At & T Corp., New York | Electroplating nickel on nickel ferrite devices |
| EP2975162B1 (en) * | 2014-07-18 | 2018-09-05 | FRANZ Oberflächentechnik GmbH & Co KG | Method for providing a workpiece with a protective coating |
| US10138884B2 (en) * | 2014-12-22 | 2018-11-27 | Weatherford Technology Holdings, Llc | Nickel corrosion barrier under chrome for sucker rod pumps |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2678908A (en) * | 1951-07-26 | 1954-05-18 | Eastman Kodak Co | Method of forming ferrotyping surfaces |
| DE1176956B (en) * | 1958-08-27 | 1964-08-27 | Bosch Gmbh Robert | Process for the multi-stage galvanic deposition of shiny nickel coatings |
| GB871276A (en) * | 1959-02-26 | 1961-06-28 | Hanson Van Winkle Munning Co | Improvements in electrodeposition of nickel |
| NL271860A (en) * | 1961-11-27 | |||
| NL275167A (en) * | 1962-02-23 | |||
| GB1091526A (en) * | 1963-07-24 | 1967-11-15 | Canning & Co Ltd W | Improvements in electrodeposition of chromium |
| US3471271A (en) * | 1965-08-16 | 1969-10-07 | Udylite Corp | Electrodeposition of a micro-cracked corrosion resistant nickel-chromium plate |
-
1964
- 1964-10-12 FR FR991133A patent/FR1447970A/en not_active Expired
- 1964-11-24 FR FR996104A patent/FR88318E/en not_active Expired
-
1965
- 1965-01-27 FR FR3489A patent/FR89217E/en not_active Expired
- 1965-03-15 US US440019A patent/US3388049A/en not_active Expired - Lifetime
- 1965-03-31 FR FR11348A patent/FR89657E/en not_active Expired
- 1965-09-24 BE BE670116D patent/BE670116A/xx not_active IP Right Cessation
- 1965-09-28 CH CH1335465A patent/CH445999A/en unknown
- 1965-10-04 GB GB41936/65A patent/GB1122795A/en not_active Expired
- 1965-10-07 DE DE1965R0041715 patent/DE1496974B2/en active Granted
- 1965-10-11 SE SE13121/65A patent/SE327875B/xx unknown
- 1965-10-11 JP JP40062000A patent/JPS5024248B1/ja active Pending
- 1965-10-12 NL NL656513216A patent/NL140902B/en not_active IP Right Cessation
-
1966
- 1966-04-13 FR FR57477A patent/FR90417E/en not_active Expired
-
1967
- 1967-03-24 BE BE696105D patent/BE696105A/xx unknown
- 1967-03-29 NL NL6704452A patent/NL6704452A/xx unknown
- 1967-03-30 US US626938A patent/US3620936A/en not_active Expired - Lifetime
- 1967-04-04 GB GB05291/67A patent/GB1187843A/en not_active Expired
- 1967-04-06 OA OA52895A patent/OA117E/xx unknown
- 1967-04-10 DE DE1621151A patent/DE1621151C3/en not_active Expired
- 1967-04-10 AT AT338167A patent/AT276893B/en not_active IP Right Cessation
- 1967-04-11 BR BR188420/67A patent/BR6788420D0/en unknown
- 1967-04-12 SE SE05064/67A patent/SE335935B/xx unknown
- 1967-04-12 ES ES339183A patent/ES339183A2/en not_active Expired
- 1967-04-12 JP JP42022950A patent/JPS4827183B1/ja active Pending
-
1971
- 1971-09-27 US US00184251A patent/US3759802A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1187843A (en) | 1970-04-15 |
| NL6704452A (en) | 1967-10-16 |
| SE335935B (en) | 1971-06-14 |
| CH445999A (en) | 1967-10-31 |
| BR6788420D0 (en) | 1973-07-10 |
| DE1496974B2 (en) | 1971-11-04 |
| FR88318E (en) | 1967-01-20 |
| US3388049A (en) | 1968-06-11 |
| DE1621151C3 (en) | 1978-11-23 |
| AT276893B (en) | 1969-12-10 |
| JPS4827183B1 (en) | 1973-08-20 |
| JPS5024248B1 (en) | 1975-08-14 |
| FR1447970A (en) | 1966-08-05 |
| BE696105A (en) | 1967-09-01 |
| SE327875B (en) | 1970-08-31 |
| BE670116A (en) | 1966-01-17 |
| NL6513216A (en) | 1966-04-13 |
| DE1621151A1 (en) | 1970-07-16 |
| US3759802A (en) | 1973-09-18 |
| DE1496974A1 (en) | 1969-12-18 |
| NL140902B (en) | 1974-01-15 |
| FR89657E (en) | 1967-07-28 |
| DE1621151B2 (en) | 1978-03-23 |
| FR89217E (en) | 1967-05-26 |
| OA117E (en) | 1970-12-15 |
| FR90417E (en) | 1967-12-08 |
| GB1122795A (en) | 1968-08-07 |
| US3620936A (en) | 1971-11-16 |
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