GB785877A - Improvements in or relating to the surface treatment of aluminium - Google Patents

Improvements in or relating to the surface treatment of aluminium

Info

Publication number
GB785877A
GB785877A GB487353A GB487353A GB785877A GB 785877 A GB785877 A GB 785877A GB 487353 A GB487353 A GB 487353A GB 487353 A GB487353 A GB 487353A GB 785877 A GB785877 A GB 785877A
Authority
GB
United Kingdom
Prior art keywords
aluminium
acid
brightening
solution
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
GB487353A
Inventor
Peter Robert William Smith
Michael Roger Pestell
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.)
Acorn Anodising Co Ltd
Original Assignee
Acorn Anodising Co Ltd
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 Acorn Anodising Co Ltd filed Critical Acorn Anodising Co Ltd
Priority to GB487353A priority Critical patent/GB785877A/en
Priority to ES0213758A priority patent/ES213758A1/en
Publication of GB785877A publication Critical patent/GB785877A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F3/00—Brightening metals by chemical means
    • C23F3/02—Light metals
    • C23F3/03—Light metals with acidic solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

An aqueous solution for chemically brightening aluminium contains hydrofluoboric acid, nitric acid and a soluble salt of a metal which is displaced in solution by aluminium. The metal may be copper, zinc, silver or cadium; the salt specifically disclosed is copper nitrate. The solution may also contain boric acid, acetic acid, phosphoric acid, ammonia, ammonium salts glycerol, glycols and ethers of the alkylene glycols, e.g. ethylene glycol mono- or diethyl ether. Sulphates, which are objectionable, may be precipitated by barium acetate. Examples are given of compositions suitable for brightening aluminium in two purity ranges. The Provisional Specification also refers to the brightening of aluminium alloys.
GB487353A 1953-02-20 1953-02-20 Improvements in or relating to the surface treatment of aluminium Expired GB785877A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB487353A GB785877A (en) 1953-02-20 1953-02-20 Improvements in or relating to the surface treatment of aluminium
ES0213758A ES213758A1 (en) 1953-02-20 1954-02-18 Improvements in or relating to the surface treatment of aluminium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB487353A GB785877A (en) 1953-02-20 1953-02-20 Improvements in or relating to the surface treatment of aluminium

Publications (1)

Publication Number Publication Date
GB785877A true GB785877A (en) 1957-11-06

Family

ID=9785429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB487353A Expired GB785877A (en) 1953-02-20 1953-02-20 Improvements in or relating to the surface treatment of aluminium

Country Status (2)

Country Link
ES (1) ES213758A1 (en)
GB (1) GB785877A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364594A (en) * 1965-07-08 1968-01-23 Addressograph Multigraph Drying processed photographic material
GB2157323A (en) * 1984-04-02 1985-10-23 Parker Chemical Co Improved flavour aluminium cleaning composition and process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364594A (en) * 1965-07-08 1968-01-23 Addressograph Multigraph Drying processed photographic material
GB2157323A (en) * 1984-04-02 1985-10-23 Parker Chemical Co Improved flavour aluminium cleaning composition and process

Also Published As

Publication number Publication date
ES213758A1 (en) 1954-07-01

Similar Documents

Publication Publication Date Title
GB736230A (en) Improvements in or relating to the electrodeposition of copper
GB591670A (en) Silver catalyst and method of preparing same
GB785877A (en) Improvements in or relating to the surface treatment of aluminium
GB1023502A (en) Improvements relating to fungicides
ES333083A1 (en) Procedure for the obtaining of a composition to treat metal surfaces. (Machine-translation by Google Translate, not legally binding)
ES408257A1 (en) Treatment of titanium cathode surfaces
GB406445A (en) Improvements in chromates and protectives
GB1039376A (en) Process for preparing bis-hydroxyalkylsulphones and ª‰-hydroxyalkylsulphonic acid salts
GB782715A (en) Process for the preparation of lead azide
GB616318A (en) A process of making a mercury acetylide silver complex
GB747859A (en) Improvements in or relating to treatment of the surfaces of aluminium or aluminium alloys
GB668496A (en) Improvements in or relating to the phosphate coating of ferrous metal surfaces and compositions for use therein
GB807172A (en) Improvements relating to the silver plating of copper and copper alloys
GB464105A (en) Improvements in and relating to electron discharge devices
GB1027325A (en) Improvements in or relating to zinc phosphate conversion coating solution concentrates
GB740880A (en) Improvements in or relating to composition and process for the chemical brightening of aluminium
GB1184144A (en) Process for imparting a Low Gloss on Aluminum
GB860277A (en) Improvements in or relating to film-forming compositions
GB679078A (en) Improvements in the polishing of aluminium and alloys thereof
GB984055A (en) Anti-corrosion product
GB737659A (en) Improvements in methods of treating aluminium or aluminium alloy surfaces
GB905020A (en) Chemical copper plating
GB663100A (en) Improvements in or relating to the drawing of aluminium or aluminium alloys
GB740131A (en) Process for coating graphite powder with a copper-lead alloy
GB958401A (en) Improvements in or relating to a method and an apparatus for electrolytic machining