GB825458A - Improvements in or relating to the electrolytic coating of magnesium and magnesium alloys by anodic treatment - Google Patents

Improvements in or relating to the electrolytic coating of magnesium and magnesium alloys by anodic treatment

Info

Publication number
GB825458A
GB825458A GB707356A GB707356A GB825458A GB 825458 A GB825458 A GB 825458A GB 707356 A GB707356 A GB 707356A GB 707356 A GB707356 A GB 707356A GB 825458 A GB825458 A GB 825458A
Authority
GB
United Kingdom
Prior art keywords
magnesium
sodium
potassium
hydroxide
alloys
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
GB707356A
Inventor
Mervin Wyndham Davies
William Eric Dennis
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB707356A priority Critical patent/GB825458A/en
Publication of GB825458A publication Critical patent/GB825458A/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

825,458. Anodic coating of magnesium and its alloys. GENERAL ELECTRIC CO. Ltd. Feb. 21, 1957 [March 6, 1956], No. 7073/56. Class 41. A protective coating is formed on magnesium and its alloys by anodic treatment in an aqueous bath containing 50 to 150 g/l. of sodium or potassium hydroxide, 35 to 120 g/l. of an anhydrous sodium or potassium fluoride, 1 to 125 g/l. of sodium or potassium aluminate, and 5 to 300 g/l. of a sodium or potassium phosphate. Bifluorides, aluminium hydroxide or metal, hydrogen orthophosphates, pyrophosphates or metaphosphates may be employed as the source of fluoride, aluminate and phosphate (PO 4 ...) with sufficient hydroxide to provide an excess of hydroxide. The bath may also contain 1 to g/l. of sodium or potassium chromate. Magnesium alloy cans for nuclear reactor fuel elements may be protected against attack by other non-ferrous metals and liquid and gaseous coolants.
GB707356A 1956-03-06 1956-03-06 Improvements in or relating to the electrolytic coating of magnesium and magnesium alloys by anodic treatment Expired GB825458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB707356A GB825458A (en) 1956-03-06 1956-03-06 Improvements in or relating to the electrolytic coating of magnesium and magnesium alloys by anodic treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB707356A GB825458A (en) 1956-03-06 1956-03-06 Improvements in or relating to the electrolytic coating of magnesium and magnesium alloys by anodic treatment

Publications (1)

Publication Number Publication Date
GB825458A true GB825458A (en) 1959-12-16

Family

ID=9826101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB707356A Expired GB825458A (en) 1956-03-06 1956-03-06 Improvements in or relating to the electrolytic coating of magnesium and magnesium alloys by anodic treatment

Country Status (1)

Country Link
GB (1) GB825458A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103088389A (en) * 2013-01-08 2013-05-08 重庆研镁科技有限公司 Magnesium alloy anodic oxidation solution and anodic oxidation coloring process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103088389A (en) * 2013-01-08 2013-05-08 重庆研镁科技有限公司 Magnesium alloy anodic oxidation solution and anodic oxidation coloring process
CN103088389B (en) * 2013-01-08 2015-07-22 重庆研镁科技有限公司 Magnesium alloy anodic oxidation solution and anodic oxidation coloring process

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