GB863746A - Anti-corrosive treatment for magnesium and magnesium alloys - Google Patents
Anti-corrosive treatment for magnesium and magnesium alloysInfo
- 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
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.
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)
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 |
-
1958
- 1958-10-22 GB GB3384458A patent/GB863746A/en not_active Expired
-
1959
- 1959-10-09 FR FR807121A patent/FR1238607A/en not_active Expired
Cited By (2)
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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