ES368314A2 - Procedure for the treatment of ferrous metals. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the treatment of ferrous metals. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES368314A2 ES368314A2 ES368314A ES368314A ES368314A2 ES 368314 A2 ES368314 A2 ES 368314A2 ES 368314 A ES368314 A ES 368314A ES 368314 A ES368314 A ES 368314A ES 368314 A2 ES368314 A2 ES 368314A2
- Authority
- ES
- Spain
- Prior art keywords
- translation
- procedure
- treatment
- machine
- legally binding
- 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
- -1 ferrous metals Chemical class 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000002253 acid Substances 0.000 abstract 3
- 239000000243 solution Substances 0.000 abstract 3
- 238000005554 pickling Methods 0.000 abstract 2
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 239000012670 alkaline solution Substances 0.000 abstract 1
- 239000010962 carbon steel Substances 0.000 abstract 1
- 238000005530 etching Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Improvements introduced in the object of the main patent no. 326,855, granted on january 19, 1967, by: procedure for the treatment of ferrous metals, especially of a carbon steel that has a passivated surface that is not usually affected by a solution acid etching, characterized in that the passivated surface is put in contact with an acid pickling solution for a period of time of at least five minutes, the surface thus treated is brought into contact with an aqueous alkaline solution of permanganate which contains approximately 5 to 50 g/liter of an alkali metal permanganate and 10 to 200 g/liter of an alkali metal hydroxide, and then the surface is brought into contact with an acid pickling solution during a space enough time to form a matte finish on the surface. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73696968A | 1968-06-14 | 1968-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES368314A2 true ES368314A2 (en) | 1971-05-01 |
Family
ID=24962072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES368314A Expired ES368314A2 (en) | 1968-06-14 | 1969-06-13 | Procedure for the treatment of ferrous metals. (Machine-translation by Google Translate, not legally binding) |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE733963A (en) |
| ES (1) | ES368314A2 (en) |
| FR (1) | FR2010871A6 (en) |
-
1969
- 1969-05-29 FR FR6917505A patent/FR2010871A6/en not_active Expired
- 1969-06-02 BE BE733963D patent/BE733963A/xx unknown
- 1969-06-13 ES ES368314A patent/ES368314A2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE733963A (en) | 1969-11-17 |
| FR2010871A6 (en) | 1970-02-20 |
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