GB863746A - Anti-corrosive treatment for magnesium and magnesium alloys - Google Patents

Anti-corrosive treatment for magnesium and magnesium alloys

Info

Publication number
GB863746A
GB863746A GB3384458A GB3384458A GB863746A GB 863746 A GB863746 A GB 863746A GB 3384458 A GB3384458 A GB 3384458A GB 3384458 A GB3384458 A GB 3384458A GB 863746 A GB863746 A GB 863746A
Authority
GB
United Kingdom
Prior art keywords
magnesium
article
solution
electrolytically
anodizing
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
GB3384458A
Inventor
Frederick Dona Waldron-Trowman
John Kenneth Wilson
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.)
Napier Turbochargers Ltd
Original Assignee
D Napier and Son 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 D Napier and Son Ltd filed Critical D Napier and Son Ltd
Priority to GB3384458A priority Critical patent/GB863746A/en
Priority to FR807121A priority patent/FR1238607A/en
Publication of GB863746A publication Critical patent/GB863746A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C25F1/04—Pickling; Descaling in solution
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

863,746. Corrosion - resistant magnesium articles. NAPIER & SON Ltd., D. Sept. 16, 1959 [Oct. 22, 1958], No. 33844/58. Class 41. Articles of magnesium or magnesium alloy are made corrosion-resistant by the following steps: (1) anodizing electrolytically using ammonium bi-fluoride solution and a voltage of 90-120 volts; (2) washing with hot chromic acid solution; (3) neutralizing, e.g. with hot alkali and rinsing; (4) anodizing electrolytically with sodium silicate solution containing a little phenol; (5) sealing the anodized coating with chromic acid solution; (6) wash, dry and impregnating the surface with an epoxide resin which is then cured by heating. The final stage is effected by placing the dried article in a vacuum chamber to which is admitted a condensation product of epichlorhydrin and a diphenolic resin dissolved in a solvent, e.g. butyl alcohol or xylol, and after 15/20 minutes immersion, vacuum is relieved and article submitted to pressure of up to 100 lbs. sq. inch for 10 minutes. Pressure is relieved, resin solution run off, the article washed in solvent, dried, and cured at 170‹ C. for 1 hour.
GB3384458A 1958-10-22 1958-10-22 Anti-corrosive treatment for magnesium and magnesium alloys Expired GB863746A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3384458A GB863746A (en) 1958-10-22 1958-10-22 Anti-corrosive treatment for magnesium and magnesium alloys
FR807121A FR1238607A (en) 1958-10-22 1959-10-09 Anti-corrosion treatment of magnesium and its alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3384458A GB863746A (en) 1958-10-22 1958-10-22 Anti-corrosive treatment for magnesium and magnesium alloys

Publications (1)

Publication Number Publication Date
GB863746A true GB863746A (en) 1961-03-29

Family

ID=10358181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3384458A Expired GB863746A (en) 1958-10-22 1958-10-22 Anti-corrosive treatment for magnesium and magnesium alloys

Country Status (2)

Country Link
FR (1) FR1238607A (en)
GB (1) GB863746A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111809215A (en) * 2020-06-12 2020-10-23 东莞理工学院 Preparation method of ceramic film on surface of magnesium alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111809215A (en) * 2020-06-12 2020-10-23 东莞理工学院 Preparation method of ceramic film on surface of magnesium alloy
CN111809215B (en) * 2020-06-12 2021-08-24 东莞理工学院 Preparation method of ceramic film on surface of magnesium alloy

Also Published As

Publication number Publication date
FR1238607A (en) 1960-08-12

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