GB223994A - Improved process of protecting surfaces of aluminium of aluminium alloys - Google Patents

Improved process of protecting surfaces of aluminium of aluminium alloys

Info

Publication number
GB223994A
GB223994A GB19838/23A GB1983823A GB223994A GB 223994 A GB223994 A GB 223994A GB 19838/23 A GB19838/23 A GB 19838/23A GB 1983823 A GB1983823 A GB 1983823A GB 223994 A GB223994 A GB 223994A
Authority
GB
United Kingdom
Prior art keywords
aluminium
minutes
treated
anode
washed
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
GB19838/23A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB19838/23A priority Critical patent/GB223994A/en
Priority to DEB114881D priority patent/DE413875C/en
Priority to DEB114882D priority patent/DE413876C/en
Priority to FR583844D priority patent/FR583844A/en
Priority to US728765A priority patent/US1771910A/en
Publication of GB223994A publication Critical patent/GB223994A/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
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
    • C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/243—Chemical after-treatment using organic dyestuffs

Landscapes

  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Coloring (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

223,994. Bengough, G. D., and Stuart, J. M. Aug. 2, 1923. Non-metallic substances, obtaining; repairing surfaces; treatment after electrolysis. - Aluminium or an aluminium alloy is provided with a resistant coating by anodic treatment in a bath containing chromic acid or a substance producing chromic acid at the anode. In the case of " duralumin " or commercial sheet aluminium the object is first washed in a solvent for grease, then in hot water; it is then made the anode in a bath containing 3 per cent chromic anhydride, free from sulphuric acid and sulphates. The cathode may be of carbon. The connections should be such that no metal other than that to be treated dips into the bath. If necessary the metal may be partially immersed and treated and then reversed. The temperature should be at least 40‹ C. The voltage should be raised gradually during 15 minutes to 40 volts, kept at this value for 35 minutes, then raised to 50 volts during 5 minutes, and kept at this value for 5 minutes. The object is then washed and dried. It may then be treated with lanoline in solution or as an emulsion or may be oiled or painted.
GB19838/23A 1923-08-02 1923-08-02 Improved process of protecting surfaces of aluminium of aluminium alloys Expired GB223994A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB19838/23A GB223994A (en) 1923-08-02 1923-08-02 Improved process of protecting surfaces of aluminium of aluminium alloys
DEB114881D DE413875C (en) 1923-08-02 1924-07-16 Process for the production of coatings on aluminum or aluminum alloys by oxidation
DEB114882D DE413876C (en) 1923-08-02 1924-07-16 Process for coloring surfaces made of aluminum or aluminum alloys
FR583844D FR583844A (en) 1923-08-02 1924-07-18 Process for the protection of aluminum or aluminum alloy surfaces
US728765A US1771910A (en) 1923-08-02 1924-07-28 Process of protecting surfaces of aluminum or aluminum alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19838/23A GB223994A (en) 1923-08-02 1923-08-02 Improved process of protecting surfaces of aluminium of aluminium alloys

Publications (1)

Publication Number Publication Date
GB223994A true GB223994A (en) 1924-11-03

Family

ID=10136061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19838/23A Expired GB223994A (en) 1923-08-02 1923-08-02 Improved process of protecting surfaces of aluminium of aluminium alloys

Country Status (4)

Country Link
US (1) US1771910A (en)
DE (2) DE413876C (en)
FR (1) FR583844A (en)
GB (1) GB223994A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784122A (en) * 1953-01-27 1957-03-05 Armco Steel Corp Process of retarding corrosion of coated metal articles and coated metal article
US2788317A (en) * 1954-02-25 1957-04-09 Koenig And Pope Aluminum and process applicable thereto
US3468988A (en) * 1965-01-21 1969-09-23 Intern Concrete Systems Co Method of forming concrete structures with treated form panels

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE868821C (en) * 1942-06-24 1953-02-26 Wilhelm Rost Process for embedding organic or inorganic substances in anodically generated oxide layers on aluminum and aluminum alloys
US3020219A (en) * 1959-01-12 1962-02-06 Electralab Printed Electronics Process for producing oxide coatings on high silicon aluminum alloy
FR1399797A (en) * 1963-05-04 1965-05-21 Aluminium Francais Improvements to the anodic oxidation of aluminum and its alloys
US4397716A (en) * 1982-04-09 1983-08-09 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Variable anodic thermal control coating
CH689395A5 (en) * 1995-03-16 1999-03-31 Alusuisse Lonza Services Ag Process for the continuous anodic oxidation of strip or wire of aluminum.
IT1393140B1 (en) * 2009-03-17 2012-04-11 Nuovo Pignone Spa METHOD OF PRODUCTION OF A PROTECTIVE COATING FOR A COMPONENT OF A TURBOMACCHINA, THE SAME COMPONENT AND THE RELATED MACHINE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784122A (en) * 1953-01-27 1957-03-05 Armco Steel Corp Process of retarding corrosion of coated metal articles and coated metal article
US2788317A (en) * 1954-02-25 1957-04-09 Koenig And Pope Aluminum and process applicable thereto
US3468988A (en) * 1965-01-21 1969-09-23 Intern Concrete Systems Co Method of forming concrete structures with treated form panels

Also Published As

Publication number Publication date
DE413875C (en) 1925-05-18
FR583844A (en) 1925-01-22
DE413876C (en) 1925-05-18
US1771910A (en) 1930-07-29

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