FR2461765A1 - Procede et installation de decapage thermochimique de pieces en acier inoxydable - Google Patents
Procede et installation de decapage thermochimique de pieces en acier inoxydable Download PDFInfo
- Publication number
- FR2461765A1 FR2461765A1 FR7919021A FR7919021A FR2461765A1 FR 2461765 A1 FR2461765 A1 FR 2461765A1 FR 7919021 A FR7919021 A FR 7919021A FR 7919021 A FR7919021 A FR 7919021A FR 2461765 A1 FR2461765 A1 FR 2461765A1
- Authority
- FR
- France
- Prior art keywords
- bath
- parts
- soda
- sulfuric
- rinsing
- 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.)
- Granted
Links
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000010935 stainless steel Substances 0.000 title claims abstract description 10
- 230000008569 process Effects 0.000 title claims abstract description 7
- 238000009434 installation Methods 0.000 title claims description 7
- 239000002253 acid Substances 0.000 claims abstract description 13
- 238000005554 pickling Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 17
- 238000005266 casting Methods 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 4
- 240000008042 Zea mays Species 0.000 claims 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims 1
- 235000005822 corn Nutrition 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 235000010344 sodium nitrate Nutrition 0.000 description 3
- 239000004317 sodium nitrate Substances 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 101100165177 Caenorhabditis elegans bath-15 gene Proteins 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229940105847 calamine Drugs 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052864 hemimorphite Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- CPYIZQLXMGRKSW-UHFFFAOYSA-N zinc;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+3].[Fe+3].[Zn+2] CPYIZQLXMGRKSW-UHFFFAOYSA-N 0.000 description 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
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
-
- 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
- C23G1/28—Cleaning or pickling metallic material with solutions or molten salts with molten salts
- C23G1/32—Heavy metals
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)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7919021A FR2461765A1 (fr) | 1979-07-24 | 1979-07-24 | Procede et installation de decapage thermochimique de pieces en acier inoxydable |
| EP80401096A EP0023184A1 (fr) | 1979-07-24 | 1980-07-23 | Procédé et installation de décapage thermochimique de pièces en acier inoxydable |
| ES493624A ES493624A0 (es) | 1979-07-24 | 1980-07-23 | Procedimiento de decapado termoquimico de piezas de acero inoxidable. |
| JP10103780A JPS5620171A (en) | 1979-07-24 | 1980-07-23 | Method and device for acid washing stainless steel product thermochemically |
| ES495055A ES8107332A1 (es) | 1979-07-24 | 1980-09-15 | Instalacion de decapado termoquimico de piezas de acero ino-xidable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7919021A FR2461765A1 (fr) | 1979-07-24 | 1979-07-24 | Procede et installation de decapage thermochimique de pieces en acier inoxydable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2461765A1 true FR2461765A1 (fr) | 1981-02-06 |
| FR2461765B1 FR2461765B1 (enExample) | 1981-12-04 |
Family
ID=9228211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7919021A Granted FR2461765A1 (fr) | 1979-07-24 | 1979-07-24 | Procede et installation de decapage thermochimique de pieces en acier inoxydable |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0023184A1 (enExample) |
| JP (1) | JPS5620171A (enExample) |
| ES (2) | ES493624A0 (enExample) |
| FR (1) | FR2461765A1 (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0507006B1 (en) * | 1991-04-02 | 1996-03-13 | Unitika Ltd. | Method of treating salt bath liquid |
| CN105483739A (zh) * | 2015-12-08 | 2016-04-13 | 无锡华工薄板有限公司 | 一种带钢酸洗槽用浓度控制系统 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1035596A (en) * | 1965-06-28 | 1966-07-13 | Allegheny Ludlum Steel | Improvements in or relating to a process of descaling stainless steel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5157641A (en) * | 1974-11-18 | 1976-05-20 | Nippon Steel Corp | Sutenresukono datsusukeeruhoho |
-
1979
- 1979-07-24 FR FR7919021A patent/FR2461765A1/fr active Granted
-
1980
- 1980-07-23 JP JP10103780A patent/JPS5620171A/ja active Pending
- 1980-07-23 ES ES493624A patent/ES493624A0/es active Granted
- 1980-07-23 EP EP80401096A patent/EP0023184A1/fr not_active Withdrawn
- 1980-09-15 ES ES495055A patent/ES8107332A1/es not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1035596A (en) * | 1965-06-28 | 1966-07-13 | Allegheny Ludlum Steel | Improvements in or relating to a process of descaling stainless steel |
Non-Patent Citations (2)
| Title |
|---|
| EXBK/71 * |
| EXBK/74 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES8104434A1 (es) | 1981-04-16 |
| ES493624A0 (es) | 1981-04-16 |
| FR2461765B1 (enExample) | 1981-12-04 |
| EP0023184A1 (fr) | 1981-01-28 |
| ES495055A0 (es) | 1981-08-16 |
| JPS5620171A (en) | 1981-02-25 |
| ES8107332A1 (es) | 1981-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |