GB491618A - A process for the production of opaque protective coatings on aluminium and its alloys - Google Patents

A process for the production of opaque protective coatings on aluminium and its alloys

Info

Publication number
GB491618A
GB491618A GB19024/37A GB1902437A GB491618A GB 491618 A GB491618 A GB 491618A GB 19024/37 A GB19024/37 A GB 19024/37A GB 1902437 A GB1902437 A GB 1902437A GB 491618 A GB491618 A GB 491618A
Authority
GB
United Kingdom
Prior art keywords
salts
thorium
zirconium
aluminium
titanium
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
GB19024/37A
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
Publication of GB491618A publication Critical patent/GB491618A/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

Landscapes

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

Abstract

491,618. Electrolytic surface treatment of aluminium and its alloys ; ornamenting. SCHENK, M. July 8, 1937, No. 19024. Convention date, July 13, 1936. Addition to 455,412. [Class 41] [Also in Group XV] Aluminium or an alloy thereof is provided with an opaque protective coating by electrolytic treatment with A.C. or D.C. (as anode) in a bath containing at least one salt of zirconium or of thorium, with or without a titanium salt, e.g. one titanium and one zirconium salt, or one titanium and one thorium, or one zirconium and one thorium. The bath may contain also (1) phosphoric, arsenic, boric, chromic or permanganic acid, or (2) oxalic, malonic, succinic, glycollic, lactic, gluconic, tartaric or citric acid, or (3) the acid or neutral salts of these inorganic or organic acids with alkali metals, ammonium or organic bases, or (4) glycerine, glycol, polyvinyl alcohol, mannite, glucose, cane sugar, dimethylcellulose or dextrine. The aluminium &c. article, before treatment, may be degreased with, e.g. benzene, etched with, e.g. soda or nitric acid, or given a polished, sand-blasted or fluted surface, whereby bright enamel-like or half-matte to fully matte effects can be obtained. Aluminiumoxide-coated articles may be treated according to the invention. The coating may be (a) coloured with dyestuffs, coloured oils, metallic soaps, or varnishes, or whitened with water solutions of titanium, zirconium or thorium salts, the salts being hydrolysed by heat or chemicals, or (b) made water-repellent with aliphatic acids or alkali or strong base salts thereof, or with sulphonated oil, or (c) coated with varnishes or resins. The coated articles are washed, dyed &c., and the coating is hardened by heating at 100-150‹ C. for 15-45 minutes. The Specification as open to inspection under Sect. 91 refers to the use of hafnium salts instead of zirconium or thorium salts and to waterproofing the coating by treatment with fatty acid compounds. This subject-matter does not appear in the Specification as accepted.
GB19024/37A 1935-01-08 1937-07-08 A process for the production of opaque protective coatings on aluminium and its alloys Expired GB491618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH455412X 1935-01-08

Publications (1)

Publication Number Publication Date
GB491618A true GB491618A (en) 1938-09-06

Family

ID=4515589

Family Applications (2)

Application Number Title Priority Date Filing Date
GB113/36A Expired GB455412A (en) 1935-01-08 1936-01-02 Improvements relating to the process of manufacturing protective layers on aluminium and its alloys
GB19024/37A Expired GB491618A (en) 1935-01-08 1937-07-08 A process for the production of opaque protective coatings on aluminium and its alloys

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB113/36A Expired GB455412A (en) 1935-01-08 1936-01-02 Improvements relating to the process of manufacturing protective layers on aluminium and its alloys

Country Status (5)

Country Link
US (2) US2260278A (en)
BE (2) BE420074A (en)
DE (2) DE655700C (en)
FR (2) FR800119A (en)
GB (2) GB455412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100371504C (en) * 2005-02-20 2008-02-27 重庆建设摩托车股份有限公司 Method for removing chromic anhydride after muffler being chromeplated

Families Citing this family (32)

* Cited by examiner, † Cited by third party
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US3331759A (en) * 1967-07-18 Method of manufacturing a soled elec- trolytic capacitor using an alkali metal biphthalate
DE743525C (en) * 1940-09-04 1943-12-28 Siemens Ag Process for the electrolytic oxidation of aluminum and aluminum alloys
US2417133A (en) * 1940-11-23 1947-03-11 Du Pont Electrodepositing and heat-treating molybdenum-oxygen deposits
CH242356A (en) * 1944-10-20 1946-05-15 Agma Aktiengesellschaft Procedure for the anodic oxidation of aluminum objects and aluminum alloys.
BE474285A (en) * 1945-02-15 1900-01-01
US2567877A (en) * 1947-07-11 1951-09-11 Ment Jack De Electrochemical bonding of aluminum with other materials
US2681310A (en) * 1949-10-25 1954-06-15 Harris Seybold Co Treating aluminum surfaces
US2788317A (en) * 1954-02-25 1957-04-09 Koenig And Pope Aluminum and process applicable thereto
US3016339A (en) * 1957-04-12 1962-01-09 Pechiney Prod Chimiques Sa Method of protecting metal surfaces
NL238065A (en) * 1958-04-14
NL252101A (en) * 1959-05-30
US3382160A (en) * 1960-03-31 1968-05-07 Asada Tahei Process for inorganically coloring aluminum
BE621486A (en) * 1961-08-19
US3388050A (en) * 1965-09-07 1968-06-11 Horizons Inc Anodized aluminum alloy product
DE1902983C3 (en) * 1968-06-21 1978-06-22 Keller, Eberhard, 7121 Freudental Process for the electrolytic coloring of anodic oxide layers on aluminum or aluminum alloys
US3524799A (en) * 1969-06-13 1970-08-18 Reynolds Metals Co Anodizing aluminum
FR2298619A1 (en) * 1975-01-22 1976-08-20 Pechiney Aluminium PROCESS AND SURFACE TREATMENT OF AN ALUMINUM WIRE FOR ELECTRICAL USE
US4152221A (en) * 1977-09-12 1979-05-01 Nancy Lee Kaye Anodizing method
US4526671A (en) * 1982-09-24 1985-07-02 Pilot Man-Nen-Hitsu Kabushiki Kaisha Surface treatment of aluminum or aluminum alloys
DE10022074A1 (en) * 2000-05-06 2001-11-08 Henkel Kgaa Protective or priming layer for sheet metal, comprises inorganic compound of different metal with low phosphate ion content, electrodeposited from solution
US7569132B2 (en) * 2001-10-02 2009-08-04 Henkel Kgaa Process for anodically coating an aluminum substrate with ceramic oxides prior to polytetrafluoroethylene or silicone coating
US7820300B2 (en) 2001-10-02 2010-10-26 Henkel Ag & Co. Kgaa Article of manufacture and process for anodically coating an aluminum substrate with ceramic oxides prior to organic or inorganic coating
US7578921B2 (en) * 2001-10-02 2009-08-25 Henkel Kgaa Process for anodically coating aluminum and/or titanium with ceramic oxides
US7452454B2 (en) * 2001-10-02 2008-11-18 Henkel Kgaa Anodized coating over aluminum and aluminum alloy coated substrates
DE102006032297A1 (en) * 2006-07-11 2008-01-17 Dura Automotive Systems Reiche Gmbh Component i.e. fuel distributor, for use in automotive engineering, has distribution pipe and distribution finger made of light alloy, preferably aluminum or aluminum alloy, where component is coated by ematal
DE102007043479A1 (en) * 2007-09-12 2009-03-19 Valeo Schalter Und Sensoren Gmbh Process for the surface treatment of aluminum and a layer structure of a component made of aluminum with an electrical contact
US9701177B2 (en) 2009-04-02 2017-07-11 Henkel Ag & Co. Kgaa Ceramic coated automotive heat exchanger components
US10941501B2 (en) * 2013-03-29 2021-03-09 Analytical Specialties, Inc. Method and composition for metal finishing
US9512536B2 (en) * 2013-09-27 2016-12-06 Apple Inc. Methods for forming white anodized films by metal complex infusion
JP2017524232A (en) * 2014-08-07 2017-08-24 ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェンＨｅｎｋｅｌ ＡＧ ＆ Ｃｏ． ＫＧａＡ Electroceramic coating of wires for use in bundled transmission cables
CA2955839A1 (en) 2014-09-23 2016-03-31 Vinod Chintamani Malshe Electrodeposition mediums for formation of protective coatings electrochemically deposited on metal substrates
CN108350598B (en) 2015-10-30 2021-03-30 苹果公司 Anodic films with enhanced features

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100371504C (en) * 2005-02-20 2008-02-27 重庆建设摩托车股份有限公司 Method for removing chromic anhydride after muffler being chromeplated

Also Published As

Publication number Publication date
US2260278A (en) 1941-10-21
BE420074A (en) 1937-03-31
BE422455A (en) 1937-08-31
FR48550E (en) 1938-03-08
DE672268C (en) 1939-02-24
DE655700C (en) 1938-01-21
FR800119A (en) 1936-06-27
GB455412A (en) 1936-10-20
US2231373A (en) 1941-02-11

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