NL7302515A - Cutting edge hardening - esp for safety razor blades using ion plasma - Google Patents

Cutting edge hardening - esp for safety razor blades using ion plasma

Info

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
Application number
NL7302515A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to NL7302515A priority Critical patent/NL7302515A/en
Publication of NL7302515A publication Critical patent/NL7302515A/en

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.
NL7302515A 1973-02-22 1973-02-22 Cutting edge hardening - esp for safety razor blades using ion plasma NL7302515A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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