GB1407407A - Manzfacture of razor blades - Google Patents

Manzfacture of razor blades

Info

Publication number
GB1407407A
GB1407407A GB4712571A GB4712571A GB1407407A GB 1407407 A GB1407407 A GB 1407407A GB 4712571 A GB4712571 A GB 4712571A GB 4712571 A GB4712571 A GB 4712571A GB 1407407 A GB1407407 A GB 1407407A
Authority
GB
United Kingdom
Prior art keywords
razor blades
oxidized
atmosphere
per cent
manzfacture
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
Application number
GB4712571A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilkinson Sword Ltd
Original Assignee
Wilkinson Sword Ltd
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 by Wilkinson Sword Ltd filed Critical Wilkinson Sword Ltd
Priority to GB4712571A priority Critical patent/GB1407407A/en
Priority to DE19722249050 priority patent/DE2249050A1/en
Publication of GB1407407A publication Critical patent/GB1407407A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/54—Razor-blades
    • 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
    • C23C8/08—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 only one element being applied
    • C23C8/10—Oxidising
    • C23C8/16—Oxidising using oxygen-containing compounds, e.g. water, carbon dioxide

Abstract

1407407 Oxidizing Fe-Cr alloys for razor blades WILKINSON SWORD Ltd 20 Sept 1972 [9 Oct 1971] 47125/71 Heading C7U An alloy of Fe-Cr e.g. 81.15 per cent Fe, 13 per cent Cr, is oxidized in an atmosphere such that the Cr is oxidized in preference to Fe to a depth of 400 to 800A degrees to form a coloured razor blade or strip. The atmosphere may be a mixture of cracked ammonia with water vapour or methanol or mixtures of carbon monoxide and dioxide. The oxidation may take place during heat treatment at 750 to 1100‹C.
GB4712571A 1971-10-09 1971-10-09 Manzfacture of razor blades Expired GB1407407A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4712571A GB1407407A (en) 1971-10-09 1971-10-09 Manzfacture of razor blades
DE19722249050 DE2249050A1 (en) 1971-10-09 1972-10-06 RAZOR BLADE AND METHOD OF MANUFACTURING IT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4712571A GB1407407A (en) 1971-10-09 1971-10-09 Manzfacture of razor blades

Publications (1)

Publication Number Publication Date
GB1407407A true GB1407407A (en) 1975-09-24

Family

ID=10443826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4712571A Expired GB1407407A (en) 1971-10-09 1971-10-09 Manzfacture of razor blades

Country Status (2)

Country Link
DE (1) DE2249050A1 (en)
GB (1) GB1407407A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047981A (en) * 1976-06-30 1977-09-13 Armco Steel Corporation Internally nitrided ferritic stainless steel strip, sheet and fabricated products and method therefor
US4464207A (en) * 1978-08-14 1984-08-07 The Garrett Corporation Dispersion strengthened ferritic stainless steel
US5911841A (en) * 1992-10-05 1999-06-15 Ohmi; Tadahiro Steel having excellent corrosion resistance
DE19800758A1 (en) * 1998-01-12 1999-07-15 Fraunhofer Ges Forschung Process for coating foil made of nickel or a nickel alloy and coated foil made of nickel or a nickel alloy

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7673541B2 (en) * 2004-06-03 2010-03-09 The Gillette Company Colored razor blades

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047981A (en) * 1976-06-30 1977-09-13 Armco Steel Corporation Internally nitrided ferritic stainless steel strip, sheet and fabricated products and method therefor
US4464207A (en) * 1978-08-14 1984-08-07 The Garrett Corporation Dispersion strengthened ferritic stainless steel
US5911841A (en) * 1992-10-05 1999-06-15 Ohmi; Tadahiro Steel having excellent corrosion resistance
US6174610B1 (en) 1992-10-05 2001-01-16 Tadahiro Ohmi Steel having excellent corrosion resistance and method of making the same
DE19800758A1 (en) * 1998-01-12 1999-07-15 Fraunhofer Ges Forschung Process for coating foil made of nickel or a nickel alloy and coated foil made of nickel or a nickel alloy
DE19800758C2 (en) * 1998-01-12 2000-08-31 Fraunhofer Ges Forschung Process for coating foil made of nickel or a nickel alloy and coated foil made of nickel or a nickel alloy

Also Published As

Publication number Publication date
DE2249050A1 (en) 1973-04-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee