BE552779A - Procede de brunissage pour tous metaux ferreux. - Google Patents
Procede de brunissage pour tous metaux ferreux.Info
- Publication number
- BE552779A BE552779A BE552779DA BE552779A BE 552779 A BE552779 A BE 552779A BE 552779D A BE552779D A BE 552779DA BE 552779 A BE552779 A BE 552779A
- Authority
- BE
- Belgium
- Prior art keywords
- ferrous metals
- burnishing process
- chromium oxide
- bath
- parts
- Prior art date
Links
- 229910000423 chromium oxide Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 3
- VWDWKYIASSYTQR-UHFFFAOYSA-N Sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M Sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGAVSDVURUSLQK-UHFFFAOYSA-N Ammonium heptamolybdate Chemical compound N.N.N.N.N.N.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo] QGAVSDVURUSLQK-UHFFFAOYSA-N 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000000126 substance Substances 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
- C23C22/62—Treatment of iron or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
<Desc/Clms Page number 1> L'invention consiste en un procédé chimique de protection des moraux ferreux contre l'oxydation, principalement à base de molibdate d'ammonnium et d'oxyde de chrome. Les pièces à brunir doivent être plongées dans un bain porté à une @em pérature de 120 à 150 degrés, L'immersion dure de 3 à 15 minutes variation due à la nature du métal,, et à la teinte désirée, cette teinte finale allant du brun au noir et pouvant être au bergine, bordeau ect... cela n'influe aucunement sur le résultat principal qui est la protection du métal. Au sortir de ce bain les pièces sont simplement rincées à l'eau pure et plongées quelques minutes dans un fixateur huileux. Résumé : Simple traitement chimique dans un bain à base de molybdate d'am monnium et d'oxyde de chrome donnant une protection efficace sans de former les pièces soumises, il ne subsiste aucun dépôt, aucune trace cristalline, sans épaisseur. EMI1.1 Formule : Eau aapaarpaoapdo9a0kaoox4aacO0aaotr Soude Caustique aaanaoaooaaopaaaoarion465 Oxyde de chrome." ..... " ..". " n ,... " ,..0,002 Mobibdate d'ammonium oo 9"o6 .<,ooo 007 Nitrate de s odium <,o a*<.<io oc.o<> t.0o 03 6 Nitrite de s odium * # # a .. # o o o 03 0 **ATTENTION** fin du champ DESC peut contenir debut de CLMS **.
Claims (1)
- **ATTENTION** fin du champ CLMS peut contenir debut de DESC **.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE552779A true BE552779A (fr) | 1956-11-21 |
Family
ID=84330886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE552779D BE552779A (fr) | 1956-12-15 | Procede de brunissage pour tous metaux ferreux. |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE552779A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537798A (zh) * | 2021-06-29 | 2022-12-30 | 斯凯孚公司 | 具有黑色氧化层的组件及其制造方法 |
-
1956
- 1956-12-15 BE BE552779D patent/BE552779A/fr unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537798A (zh) * | 2021-06-29 | 2022-12-30 | 斯凯孚公司 | 具有黑色氧化层的组件及其制造方法 |
| EP4112774A1 (fr) * | 2021-06-29 | 2023-01-04 | Aktiebolaget SKF | Pièce avec couche de brunissage |
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