GB829716A - Electrolytic coating on articles of magnesium or magnesium base alloys - Google Patents

Electrolytic coating on articles of magnesium or magnesium base alloys

Info

Publication number
GB829716A
GB829716A GB26377/57A GB2637757A GB829716A GB 829716 A GB829716 A GB 829716A GB 26377/57 A GB26377/57 A GB 26377/57A GB 2637757 A GB2637757 A GB 2637757A GB 829716 A GB829716 A GB 829716A
Authority
GB
United Kingdom
Prior art keywords
magnesium
base alloys
solution
aug
giving
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
GB26377/57A
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.)
PPG Architectural Coatings Canada Inc
Original Assignee
Canadian Industries 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 Canadian Industries Ltd filed Critical Canadian Industries Ltd
Publication of GB829716A publication Critical patent/GB829716A/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
    • C25D11/30—Anodisation of magnesium or alloys based thereon

Abstract

829,716. Anodizing magnesium and its base alloys. CANADIAN INDUSTRIES Ltd. Aug. 21, 1957 [Aug. 22, 1956], No. 26377/57. Class 41. A grey protective coating is formed on magnesium and its base alloys by anodizing in an aqueous solution containing an alkali metal oxalate giving more than 1.3 g/1 of oxalate ion, and an alkali metal orthophosphate giving at least 3 g/l of orthophosphate ion at a pH between 9 and 10.5. The solution may also contain an alcohol such as ethyl alcohol or ethylene- or diethylene-glycol, and may also contain as a buffer phosphoric acid or a condensed phosphate such as sodium hexametaphosphate. The magnesium or alloy is first cleaned by immersion in a solvent covered by a layer of water and then in a hot alkaline stripping solution and may be dipped in a chromic nitrate pickling solution. The cathode used may be of magnesium, aluminium, stainless steel, copper, or graphite.
GB26377/57A 1956-08-22 1957-08-21 Electrolytic coating on articles of magnesium or magnesium base alloys Expired GB829716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA829716X 1956-08-22

Publications (1)

Publication Number Publication Date
GB829716A true GB829716A (en) 1960-03-02

Family

ID=4172618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26377/57A Expired GB829716A (en) 1956-08-22 1957-08-21 Electrolytic coating on articles of magnesium or magnesium base alloys

Country Status (1)

Country Link
GB (1) GB829716A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030305A1 (en) * 1979-12-07 1981-06-17 Norsk Hydro A/S Chemical pretreatment for method for the electrolytical metal coating of magnesium articles
EP0978576A1 (en) * 1998-02-23 2000-02-09 Mitsui Mining and Smelting Co., Ltd Corrosion-resistant, magnesium-based product exhibiting luster of base metal and method for producing the same
WO2002028838A2 (en) * 2000-10-05 2002-04-11 Magnesium Technology Limited Magnesium anodisation system and methods
WO2004035876A1 (en) * 2002-10-09 2004-04-29 Wolf-Dieter Franz Method for cleaning and passivating light alloy surfaces

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030305A1 (en) * 1979-12-07 1981-06-17 Norsk Hydro A/S Chemical pretreatment for method for the electrolytical metal coating of magnesium articles
EP0978576A1 (en) * 1998-02-23 2000-02-09 Mitsui Mining and Smelting Co., Ltd Corrosion-resistant, magnesium-based product exhibiting luster of base metal and method for producing the same
EP0978576A4 (en) * 1998-02-23 2000-11-08 Mitsui Mining & Smelting Co Corrosion-resistant, magnesium-based product exhibiting luster of base metal and method for producing the same
US6335099B1 (en) 1998-02-23 2002-01-01 Mitsui Mining And Smelting Co., Ltd. Corrosion resistant, magnesium-based product exhibiting luster of base metal and method for producing the same
WO2002028838A2 (en) * 2000-10-05 2002-04-11 Magnesium Technology Limited Magnesium anodisation system and methods
WO2002028838A3 (en) * 2000-10-05 2003-04-03 Magnesium Technology Ltd Magnesium anodisation system and methods
WO2004035876A1 (en) * 2002-10-09 2004-04-29 Wolf-Dieter Franz Method for cleaning and passivating light alloy surfaces

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