ES8202065A1 - Removing oxide scale from surface of stainless steel - Google Patents
Removing oxide scale from surface of stainless steelInfo
- Publication number
- ES8202065A1 ES8202065A1 ES494393A ES494393A ES8202065A1 ES 8202065 A1 ES8202065 A1 ES 8202065A1 ES 494393 A ES494393 A ES 494393A ES 494393 A ES494393 A ES 494393A ES 8202065 A1 ES8202065 A1 ES 8202065A1
- Authority
- ES
- Spain
- Prior art keywords
- stainless steel
- hot
- oxide scale
- rolled
- solution
- 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
- 229910001220 stainless steel Inorganic materials 0.000 title abstract 2
- 239000010935 stainless steel Substances 0.000 title abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 2
- 239000001117 sulphuric acid Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005554 pickling Methods 0.000 abstract 1
- 238000005096 rolling process 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
- C23G1/081—Iron or steel solutions containing H2SO4
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)
Abstract
A method of removing the oxide scale on the surface of hot-rolled stainless steel, especially hot-rolled wire which has passed through a controlled, forced cooling directly after the final roll pair of the rolling mill. The hot-rolled, directly-cooled wire is treated for a period of about 1-120 minutes in a solution of dilute sulphuric acid with a concentration of 25-1200 g sulphuric acid per liter pickling solution. The temperature of the solution is kept at 40-100 DEG C during the course of the treatment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7907610A SE439025B (en) | 1979-09-13 | 1979-09-13 | SET TO REMOVE OXID LAYERS FROM THE SURFACE OF HOT ROLLED STAINLESS STEEL |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES8202065A1 true ES8202065A1 (en) | 1982-02-01 |
| ES494393A0 ES494393A0 (en) | 1982-02-01 |
Family
ID=20338819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES494393A Granted ES494393A0 (en) | 1979-09-13 | 1980-08-20 | METHOD OF REMOVING HOT ROLLED STAINLESS STEEL SURFACE OXIDE SCREW |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5641012A (en) |
| BE (1) | BE885220A (en) |
| DE (1) | DE3029525A1 (en) |
| ES (1) | ES494393A0 (en) |
| FR (1) | FR2465012A1 (en) |
| GB (1) | GB2058140B (en) |
| IT (1) | IT1132666B (en) |
| NL (1) | NL8004889A (en) |
| SE (1) | SE439025B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO175906C (en) * | 1992-05-18 | 1995-01-04 | Leif Inge Aanestad | Method of metal coating interior surfaces of tanks and pipes |
| TW416996B (en) * | 1996-05-24 | 2001-01-01 | Armco Inc | Hydrogen peroxide pickling of stainless steel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB385429A (en) * | 1931-12-31 | 1932-12-29 | Wiggin & Co Ltd Henry | Improvements relating to the treatment of corrosion or heat-resisting alloys to remove oxide scale therefrom |
| US2605775A (en) * | 1947-02-21 | 1952-08-05 | Superior Steel Corp | Process of teating cold rolled straight chrome type stainless steel |
| US2895856A (en) * | 1955-12-15 | 1959-07-21 | United States Steel Corp | Method of pickling chromium-containing steel tubes |
| US2981643A (en) * | 1958-02-19 | 1961-04-25 | Russell D Baybarz | Process for descaling and decontaminating metals |
-
1979
- 1979-09-13 SE SE7907610A patent/SE439025B/en not_active IP Right Cessation
-
1980
- 1980-08-04 DE DE19803029525 patent/DE3029525A1/en not_active Withdrawn
- 1980-08-12 GB GB8026245A patent/GB2058140B/en not_active Expired
- 1980-08-20 ES ES494393A patent/ES494393A0/en active Granted
- 1980-08-29 NL NL8004889A patent/NL8004889A/en not_active Application Discontinuation
- 1980-09-02 JP JP12072980A patent/JPS5641012A/en active Pending
- 1980-09-05 IT IT24478/80A patent/IT1132666B/en active
- 1980-09-12 FR FR8019698A patent/FR2465012A1/en active Pending
- 1980-09-12 BE BE0/202093A patent/BE885220A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE7907610L (en) | 1981-03-14 |
| IT8024478A0 (en) | 1980-09-05 |
| BE885220A (en) | 1981-03-12 |
| JPS5641012A (en) | 1981-04-17 |
| GB2058140A (en) | 1981-04-08 |
| IT1132666B (en) | 1986-07-02 |
| DE3029525A1 (en) | 1981-04-02 |
| FR2465012A1 (en) | 1981-03-20 |
| NL8004889A (en) | 1981-03-17 |
| GB2058140B (en) | 1982-12-22 |
| SE439025B (en) | 1985-05-28 |
| ES494393A0 (en) | 1982-02-01 |
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