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GB1069005A - A process for coating titanium surfaces - Google Patents

A process for coating titanium surfaces

Info

Publication number
GB1069005A
GB1069005A GB24984/64A GB2498464A GB1069005A GB 1069005 A GB1069005 A GB 1069005A GB 24984/64 A GB24984/64 A GB 24984/64A GB 2498464 A GB2498464 A GB 2498464A GB 1069005 A GB1069005 A GB 1069005A
Authority
GB
United Kingdom
Prior art keywords
titanium
washed
dried
coated
metal
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
GB24984/64A
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.)
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Original Assignee
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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 Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU filed Critical Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Publication of GB1069005A publication Critical patent/GB1069005A/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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/38—Pretreatment of metallic surfaces to be electroplated of refractory metals or nickel
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/10—Other heavy metals
    • C23G1/106—Other heavy metals refractory metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/075—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
    • C25B11/081—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound the element being a noble metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

Elements of or coated with titanium or a titanium-base alloy are pickled with a mixture of hydrochloric and nitric acids, washed, dried, coated with a metal of the platinum group and, after washing and drying if necessary, are finally heated in air to a temperature between 150 and 300 DEG C. Typically a graphite rod sheathed in Ti is degreased in trichloroethylene, pickled in a boiling 2:1 by volume mixture of 35%, HC1 and conc. HNO3, washed and dried, electroplated with Pt to give a coating of 20mg/dm2, washed and dried at 110 DEG C. and finally annealed for 2 hours at 250 DEG C. in air. The electroplating bath is of the chloroplatinic acid type containing also diammonium and disodium orthophosphates, boric acid, sodium hydroxide, and hydrofluoric and orthophosphoric acids and ammonia and is of pH 4.5. Reference is also made to depositing the platinum group metal by vacuum metallizing or chemical plating and to repeating the steps of depositing the metal and annealing one or more times using electrolysis or these processes in any combination. Platinized titanium coated graphite electrodes prepared as described above with a copper connection made into the graphite may be used as anodes in electrolytic production of sodium chlorate and platinized perforated titanium anodes similarly prepared may be used in winning cobalt from a cobalt chloride solution.
GB24984/64A 1963-06-18 1964-06-16 A process for coating titanium surfaces Expired GB1069005A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR938511A FR1368236A (en) 1963-06-18 1963-06-18 Platinum process

Publications (1)

Publication Number Publication Date
GB1069005A true GB1069005A (en) 1967-05-17

Family

ID=8806331

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24984/64A Expired GB1069005A (en) 1963-06-18 1964-06-16 A process for coating titanium surfaces

Country Status (5)

Country Link
US (1) US3357858A (en)
DE (1) DE1521464A1 (en)
FR (1) FR1368236A (en)
GB (1) GB1069005A (en)
SE (1) SE300919B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497426A (en) * 1964-07-02 1970-02-24 Nippon Carbide Kogyo Kk Manufacture of electrode
US3427197A (en) * 1965-01-27 1969-02-11 Lockheed Aircraft Corp Method for plating thin titanium films
USRE28820E (en) * 1965-05-12 1976-05-18 Chemnor Corporation Method of making an electrode having a coating containing a platinum metal oxide thereon
US3711385A (en) * 1970-09-25 1973-01-16 Chemnor Corp Electrode having platinum metal oxide coating thereon,and method of use thereof
DE69424253T2 (en) * 1993-11-10 2000-12-21 Xomed Inc., Jacksonville Bipolar, electrosurgical instrument and manufacturing process
WO2006133709A2 (en) * 2005-06-15 2006-12-21 Danfoss A/S A corrosion resistant object having an outer layer of a precious metal
CN107532312B (en) * 2014-12-18 2019-11-01 研究与创新基金会 The manufacturing method of 2,3- butanediol
CN114164419B (en) * 2021-11-23 2023-04-07 西安泰金新能科技股份有限公司 Method for preparing platinum active layer on anode plate by thermal decomposition method

Cited By (2)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
SE300919B (en) 1968-05-13
DE1521464A1 (en) 1969-10-16
US3357858A (en) 1967-12-12
FR1368236A (en) 1964-07-31

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