GB536938A - Improved processes for treating the surfaces of aluminium and aluminium alloys - Google Patents

Improved processes for treating the surfaces of aluminium and aluminium alloys

Info

Publication number
GB536938A
GB536938A GB1314040A GB1314040A GB536938A GB 536938 A GB536938 A GB 536938A GB 1314040 A GB1314040 A GB 1314040A GB 1314040 A GB1314040 A GB 1314040A GB 536938 A GB536938 A GB 536938A
Authority
GB
United Kingdom
Prior art keywords
aluminium
treatment
alloys
benzol
nitric
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
GB1314040A
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.)
WILLIAM ALFRED BIRD
Original Assignee
WILLIAM ALFRED BIRD
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 WILLIAM ALFRED BIRD filed Critical WILLIAM ALFRED BIRD
Priority to GB1314040A priority Critical patent/GB536938A/en
Publication of GB536938A publication Critical patent/GB536938A/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
    • 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
    • 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
    • C25D11/16—Pretreatment, e.g. desmutting
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • ing And Chemical Polishing (AREA)
  • Optical Filters (AREA)
  • Detergent Compositions (AREA)

Abstract

536,938. Anodizing aluminium and alloys thereof. McGLASSON, R., and BIRD, W. A. Aug. 17, 1940, No. 13140. [Class 41] Aluminium or aluminium alloys before being anodized by the chromic or sulphuric and oxalic acid methods are after polishing and cleaning with benzol, petrol, paraffin or alcohol, etched by treatment with nitric or hydrofluoric acid, ferric chloride, caustic soda or potash or alkaline earth hydroxides. Treatment with ferric chloride may precede or follow treatment with nitric or hydrofluoric acid. The anodized surface may be dyed by immersion in dye solution for example nigrosine in acetic acid and designs may be obtained by masking parts of the surface with gums, resins or shellac dissolved in alcohol, amyl acetate &c. The surface is sealed with lanolin dissolved in benzol. The surface is washed in water between the operations.
GB1314040A 1940-08-17 1940-08-17 Improved processes for treating the surfaces of aluminium and aluminium alloys Expired GB536938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1314040A GB536938A (en) 1940-08-17 1940-08-17 Improved processes for treating the surfaces of aluminium and aluminium alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1314040A GB536938A (en) 1940-08-17 1940-08-17 Improved processes for treating the surfaces of aluminium and aluminium alloys

Publications (1)

Publication Number Publication Date
GB536938A true GB536938A (en) 1941-05-30

Family

ID=10017574

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1314040A Expired GB536938A (en) 1940-08-17 1940-08-17 Improved processes for treating the surfaces of aluminium and aluminium alloys

Country Status (1)

Country Link
GB (1) GB536938A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112647442A (en) * 2020-09-01 2021-04-13 台州市福华标牌制作有限公司 Welding process for identification iron frame
CN117403150A (en) * 2023-12-13 2024-01-16 佛山市华满莹铝业有限公司 Preparation process of polished heat-insulating aluminum profile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112647442A (en) * 2020-09-01 2021-04-13 台州市福华标牌制作有限公司 Welding process for identification iron frame
CN117403150A (en) * 2023-12-13 2024-01-16 佛山市华满莹铝业有限公司 Preparation process of polished heat-insulating aluminum profile
CN117403150B (en) * 2023-12-13 2024-02-23 佛山市华满莹铝业有限公司 Preparation process of polished heat-insulating aluminum profile

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