FR868994A - Procédé d'obtention de filetages nitrurés - Google Patents
Procédé d'obtention de filetages nitrurésInfo
- Publication number
- FR868994A FR868994A FR868994DA FR868994A FR 868994 A FR868994 A FR 868994A FR 868994D A FR868994D A FR 868994DA FR 868994 A FR868994 A FR 868994A
- Authority
- FR
- France
- Prior art keywords
- threads
- nitrided
- obtaining
- obtaining nitrided
- nitrided threads
- 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
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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/04—Treatment of selected surface areas, e.g. using masks
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE868994X | 1940-01-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR868994A true FR868994A (fr) | 1942-01-21 |
Family
ID=6802733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR868994D Expired FR868994A (fr) | 1940-01-02 | 1941-01-02 | Procédé d'obtention de filetages nitrurés |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR868994A (fr) |
-
1941
- 1941-01-02 FR FR868994D patent/FR868994A/fr not_active Expired
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