NL7302515A - Cutting edge hardening - esp for safety razor blades using ion plasma - Google Patents
Cutting edge hardening - esp for safety razor blades using ion plasmaInfo
- Publication number
- NL7302515A NL7302515A NL7302515A NL7302515A NL7302515A NL 7302515 A NL7302515 A NL 7302515A NL 7302515 A NL7302515 A NL 7302515A NL 7302515 A NL7302515 A NL 7302515A NL 7302515 A NL7302515 A NL 7302515A
- Authority
- NL
- Netherlands
- Prior art keywords
- esp
- cutting edge
- gas
- jar
- safety razor
- Prior art date
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
- C23C8/06—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 using gases
- C23C8/36—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 using gases using ionised gases, e.g. ionitriding
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The baldes are stacked together and connected to a negative potential, relative to a spiral anode, of initially 100-1000V, the whole being enclosed in a vacuum bell jar at a press. of 0.05-10 mm of Hf so that the surface may be thoroughly cleaned, the atmos. in the jar being free of N2 at this stage. A mixt. of a gas which will react with one of the metals in the alloy of the cutting edge, with a reducing or inert gas, e.g. H2 or A, is then fed into the jar with the same pressure but with the voltage reduced to 50-800V. The gas reacts esp. with a Gp. IIIA-VIIA or Gp. VIII metal, esp. Ti, V, Cr, Fe or Al (or less commonly Co, Ni or Mn) to form nitride, carbide or boride. The active gases used are respectively - N2; methane, butane or other hydrocarbon gas; borazine or borane. Relatively cheap mass prodn. method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7302515A NL7302515A (en) | 1973-02-22 | 1973-02-22 | Cutting edge hardening - esp for safety razor blades using ion plasma |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7302515A NL7302515A (en) | 1973-02-22 | 1973-02-22 | Cutting edge hardening - esp for safety razor blades using ion plasma |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7302515A true NL7302515A (en) | 1973-04-25 |
Family
ID=19818288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7302515A NL7302515A (en) | 1973-02-22 | 1973-02-22 | Cutting edge hardening - esp for safety razor blades using ion plasma |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL7302515A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2513660A1 (en) * | 1981-09-30 | 1983-04-01 | Kymin Oy Kymmene Ab | PROCESS FOR NITRIDING LOW PRESSURE MATERIALS AND USING LUMINESCENT DISCHARGE |
-
1973
- 1973-02-22 NL NL7302515A patent/NL7302515A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2513660A1 (en) * | 1981-09-30 | 1983-04-01 | Kymin Oy Kymmene Ab | PROCESS FOR NITRIDING LOW PRESSURE MATERIALS AND USING LUMINESCENT DISCHARGE |
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