GB952171A - Platinum coated electrodes and electroplating processes using such electrodes - Google Patents

Platinum coated electrodes and electroplating processes using such electrodes

Info

Publication number
GB952171A
GB952171A GB9741/60A GB974160A GB952171A GB 952171 A GB952171 A GB 952171A GB 9741/60 A GB9741/60 A GB 9741/60A GB 974160 A GB974160 A GB 974160A GB 952171 A GB952171 A GB 952171A
Authority
GB
United Kingdom
Prior art keywords
plated
titanium
platinum
electrodes
plating
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
Application number
GB9741/60A
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.)
Harshaw Chemical Co
Original Assignee
Harshaw Chemical Co
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 Harshaw Chemical Co filed Critical Harshaw Chemical Co
Publication of GB952171A publication Critical patent/GB952171A/en
Expired legal-status Critical Current

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
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/10—Electrodes, e.g. composition, counter electrode
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/06—Suspending or supporting devices for articles to be coated
    • C25D17/08—Supporting racks, i.e. not for suspending
    • 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
    • C25D5/48—After-treatment of electroplated surfaces
    • C25D5/50—After-treatment of electroplated surfaces by heat-treatment
    • 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
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium
    • 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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals
    • 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

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)

Abstract

<PICT:0952171/C3/1> An anode, especially useful in nickel and chromium plating, and giving good "throwing power", is made by plating titanium with platinum and then heating the coating at 400-800 DEG C., whereby the two metals interdiffuse. A second coating of platinum may then be applied followed by a second heat treatment, which does not require a special atmosphere. Preferably the titanium base is treated with a solution of HNO3 and HF, and after rinsing, alkali wash, and rinsing, is treated with strong HBF4 at 120-150 DEG C. The titanium is then washed and plated wholly or in selected areas using PtCl4 and HCl or H3PO4. The plated metal is then heated at 400-800 DEG C. for 15 seconds up to 1 hour. The electrode may be used to function as an auxiliary anode, e.g. in the form of thick rods 5, 51 of the platinum plated anodes connected through a titanium rod 4 and spaced from recessed objects to be plated 2, 21 gripped in a holder 1. The arrangement gives a high current density and improved plating in the recessed areas. Specification 952,172 is referred to.
GB9741/60A 1959-04-14 1960-03-18 Platinum coated electrodes and electroplating processes using such electrodes Expired GB952171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US806330A US2987453A (en) 1959-04-14 1959-04-14 Method of electrodepositing chromium

Publications (1)

Publication Number Publication Date
GB952171A true GB952171A (en) 1964-03-11

Family

ID=25193813

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9741/60A Expired GB952171A (en) 1959-04-14 1960-03-18 Platinum coated electrodes and electroplating processes using such electrodes
GB42454/63A Expired GB952172A (en) 1959-04-14 1960-03-18 Platinum coated titanium anodes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB42454/63A Expired GB952172A (en) 1959-04-14 1960-03-18 Platinum coated titanium anodes

Country Status (2)

Country Link
US (1) US2987453A (en)
GB (2) GB952171A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108546935A (en) * 2018-05-29 2018-09-18 江阴安诺电极有限公司 The preparation method of platinum coated anode plate

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL250923A (en) * 1959-04-27
GB900370A (en) * 1959-07-22 1962-07-04 Oronzio Nora De Corrosion resistant, current- or heat-conducting components
US3055811A (en) * 1961-05-08 1962-09-25 Universal Oil Prod Co Electrolysis with improved platinum plated titanium anode and manufacture thereof
US3254015A (en) * 1961-07-28 1966-05-31 Bishop & Co Platinum Works J Process for treating platinum-coated electrodes
US3250691A (en) * 1962-05-28 1966-05-10 Pittsburgh Plate Glass Co Electrolytic process of decomposing an alkali metal chloride
US3247083A (en) * 1964-04-01 1966-04-19 Louis W Raymond Method of chromium electrodeposition
US3412000A (en) * 1965-04-14 1968-11-19 M & T Chemicals Inc Cathodic protection of titanium surfaces
USRE28820E (en) * 1965-05-12 1976-05-18 Chemnor Corporation Method of making an electrode having a coating containing a platinum metal oxide thereon
US4052271A (en) * 1965-05-12 1977-10-04 Diamond Shamrock Technologies, S.A. Method of making an electrode having a coating containing a platinum metal oxide thereon
US3300396A (en) * 1965-11-24 1967-01-24 Charles T Walker Electroplating techniques and anode assemblies therefor
US3711385A (en) * 1970-09-25 1973-01-16 Chemnor Corp Electrode having platinum metal oxide coating thereon,and method of use thereof
US4294670A (en) * 1979-10-29 1981-10-13 Raymond Louis W Precision electroplating of metal objects
US5759384A (en) * 1995-03-30 1998-06-02 Bioquest Spa halogen generator and method of operating
US5545310A (en) * 1995-03-30 1996-08-13 Silveri; Michael A. Method of inhibiting scale formation in spa halogen generator
US6007693A (en) * 1995-03-30 1999-12-28 Bioquest Spa halogen generator and method of operating
US5752282A (en) * 1995-03-30 1998-05-19 Bioquest Spa fitting
US5676805A (en) * 1995-03-30 1997-10-14 Bioquest SPA purification system
CN102494185B (en) * 2011-11-15 2013-05-15 无锡威孚精密机械制造有限责任公司 Surface treatment processing technology of hydraulic valve rod

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719797A (en) * 1950-05-23 1955-10-04 Baker & Co Inc Platinizing tantalum
US2798843A (en) * 1953-10-29 1957-07-09 Rohr Aircraft Corp Plating and brazing titanium
US2834101A (en) * 1955-02-23 1958-05-13 Curtiss Wright Corp Method of brazing titanium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108546935A (en) * 2018-05-29 2018-09-18 江阴安诺电极有限公司 The preparation method of platinum coated anode plate

Also Published As

Publication number Publication date
US2987453A (en) 1961-06-06
GB952172A (en) 1964-03-11

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