GB1104932A - Improvements in or relating to safety razor blades - Google Patents

Improvements in or relating to safety razor blades

Info

Publication number
GB1104932A
GB1104932A GB271164A GB271164A GB1104932A GB 1104932 A GB1104932 A GB 1104932A GB 271164 A GB271164 A GB 271164A GB 271164 A GB271164 A GB 271164A GB 1104932 A GB1104932 A GB 1104932A
Authority
GB
United Kingdom
Prior art keywords
razor blades
martensite
relating
blades
safety razor
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
GB271164A
Inventor
Bernard Stephen Hanson
William Stewart Gibson
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
Uddeholms AB
Original Assignee
Wilkinson Sword Ltd
Uddeholms AB
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, Uddeholms AB filed Critical Wilkinson Sword Ltd
Priority to SE76365A priority Critical patent/SE323400C/en
Publication of GB1104932A publication Critical patent/GB1104932A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

Low carbon iron-base alloy containing 10-30% of nickel and one or more hardening elements is austenitized e.g. at 750 DEG - 1050 DEG C. and then transformed to martensite either before or after the strip is at least partly formed into razor blades. The blades are then further heat-treated, preferably at 400 DEG - 550 DEG C. to attain a hardness greater than 450 V.P.N. Transformation to martensite may be effected by cooling, possibly to sub-zero temperatures, or by cold working. The preferred upper limits for the other alloying elements are .cobalt.15.manganese.0.5 .molybdenum.6.silicon.0.5 .titanium.5.sulphur.0.05 .aluminium.5.phosphorus.0.05 .niobium.4.boron.0.1 .chromium.15.calcium.0.1 .carbon.0.1.zirconium.0.25
GB271164A 1964-01-22 1964-01-22 Improvements in or relating to safety razor blades Expired GB1104932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE76365A SE323400C (en) 1964-01-22 1965-01-20 Method of making a razor blade with good cutting properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0039369 1965-06-18

Publications (1)

Publication Number Publication Date
GB1104932A true GB1104932A (en) 1968-03-06

Family

ID=7602093

Family Applications (1)

Application Number Title Priority Date Filing Date
GB271164A Expired GB1104932A (en) 1964-01-22 1964-01-22 Improvements in or relating to safety razor blades

Country Status (2)

Country Link
DE (1) DE1483327A1 (en)
GB (1) GB1104932A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259126A (en) * 1978-10-19 1981-03-31 Wilkinson Sword Limited Method of making razor blade strip from austenitic steel
US4572738A (en) * 1981-09-24 1986-02-25 The United States Of America As Represented By The United States Department Of Energy Maraging superalloys and heat treatment processes
US5653032A (en) * 1995-12-04 1997-08-05 Lockheed Martin Energy Systems, Inc. Iron aluminide knife and method thereof
US20100189590A1 (en) * 2007-07-11 2010-07-29 Hitachi Metals, Ltd. Maraging steel and maraging steel for metallic belt

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU520982B2 (en) * 1977-12-08 1982-03-11 Special Metals Corp. Low thermal expansion nickel-iron base alloy
DE3333783C1 (en) * 1983-09-19 1985-03-21 ARBED Saarstahl GmbH, 6620 Völklingen Use of martensite-hardenable nickel steels for the blades of cutting weapons and thrust weapons
FR2570483B1 (en) * 1984-10-26 1986-10-31 Arbed Saarstahl Gmbh USE OF NICKEL MARAGING STEELS FOR WEAPONS OF SIZE AND ESTOC

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259126A (en) * 1978-10-19 1981-03-31 Wilkinson Sword Limited Method of making razor blade strip from austenitic steel
US4572738A (en) * 1981-09-24 1986-02-25 The United States Of America As Represented By The United States Department Of Energy Maraging superalloys and heat treatment processes
US5653032A (en) * 1995-12-04 1997-08-05 Lockheed Martin Energy Systems, Inc. Iron aluminide knife and method thereof
US20100189590A1 (en) * 2007-07-11 2010-07-29 Hitachi Metals, Ltd. Maraging steel and maraging steel for metallic belt

Also Published As

Publication number Publication date
DE1483327A1 (en) 1969-02-20

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