ES427657A1 - Picking procedure for metal objects, especially applicable to the continuous treatment of materials in the form of string or wire. (Machine-translation by Google Translate, not legally binding) - Google Patents
Picking procedure for metal objects, especially applicable to the continuous treatment of materials in the form of string or wire. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES427657A1 ES427657A1 ES74427657A ES427657A ES427657A1 ES 427657 A1 ES427657 A1 ES 427657A1 ES 74427657 A ES74427657 A ES 74427657A ES 427657 A ES427657 A ES 427657A ES 427657 A1 ES427657 A1 ES 427657A1
- Authority
- ES
- Spain
- Prior art keywords
- translation
- wire
- amounts
- materials
- 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
- 238000000034 method Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 4
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 238000005554 pickling Methods 0.000 abstract 2
- 239000011780 sodium chloride Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Pickling process for metal objects, especially applicable to the continuous treatment of materials in the form of strip or wire, especially stainless steel, using for this a combination of at least two separate pickling stages, characterized by the fact that the object once annealed, it is exposed to the chemical action of an aqueous solution, which is heated to temperatures above room temperature, but preferably above 30ºc and advantageously between 55ºc and 60ºc, and it contains hf in oscillating proportions between 7% and 25%, although preferably oscillating between 15% and 20%, Or containing hf in the amounts cited above, as well as sulfuric acid in proportions greater than 2%, or containing hf in the amounts mentioned above as well as sodium chloride in up to 10%, but especially in 0.5% a 2.5%, Or containing hf in the amounts cited above, as well as sulfuric acid and sodium chloride in the amounts quoted above, In combination with the fact that the object is exposed in the second stage of the process to the chemical action of an aqueous solution, which is heated to temperatures above room temperature, but in particular above 30ºC and advantageously betweenº and 60º c, and that contains hf and nitric acid. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7308769 | 1973-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES427657A1 true ES427657A1 (en) | 1976-09-01 |
Family
ID=20317847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES74427657A Expired ES427657A1 (en) | 1973-06-26 | 1974-06-25 | Picking procedure for metal objects, especially applicable to the continuous treatment of materials in the form of string or wire. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES427657A1 (en) |
-
1974
- 1974-06-25 ES ES74427657A patent/ES427657A1/en not_active Expired
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