GB791113A - Improvements relating to the manufacture of metal articles having a cutting edge or penetrating point - Google Patents

Improvements relating to the manufacture of metal articles having a cutting edge or penetrating point

Info

Publication number
GB791113A
GB791113A GB1029654A GB1029654A GB791113A GB 791113 A GB791113 A GB 791113A GB 1029654 A GB1029654 A GB 1029654A GB 1029654 A GB1029654 A GB 1029654A GB 791113 A GB791113 A GB 791113A
Authority
GB
United Kingdom
Prior art keywords
temperature
metal articles
manufacture
cutting edge
improvements relating
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
GB1029654A
Inventor
Wilfred Davis Smallwood
Cyril Alfred Payne
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.)
STAINLESS SURGICAL NEEDLE COMP
Original Assignee
STAINLESS SURGICAL NEEDLE COMP
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 STAINLESS SURGICAL NEEDLE COMP filed Critical STAINLESS SURGICAL NEEDLE COMP
Priority to GB1029654A priority Critical patent/GB791113A/en
Publication of GB791113A publication Critical patent/GB791113A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/18—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for knives, scythes, scissors, or like hand cutting tools
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

A method of making metal articles having cutting edges or penetrating points comprises forming the articles of stainless steel and subjecting at least the parts carrying the cutting edges or points to a temperature between 265 and 370 DEG C. and in an oven or salt bath to 265-270 DEG C. and cooling. A surgical needle may be heated the temperature then increased at the rate of 1 DEG C. per minute to 275-285 DEG C. and maintained at that temperature long enough for the cross-section of the needle to attain the temperature and then cooling to room temperature. The edges and/or point may then be ground.
GB1029654A 1954-04-08 1954-04-08 Improvements relating to the manufacture of metal articles having a cutting edge or penetrating point Expired GB791113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1029654A GB791113A (en) 1954-04-08 1954-04-08 Improvements relating to the manufacture of metal articles having a cutting edge or penetrating point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1029654A GB791113A (en) 1954-04-08 1954-04-08 Improvements relating to the manufacture of metal articles having a cutting edge or penetrating point

Publications (1)

Publication Number Publication Date
GB791113A true GB791113A (en) 1958-02-26

Family

ID=9965244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1029654A Expired GB791113A (en) 1954-04-08 1954-04-08 Improvements relating to the manufacture of metal articles having a cutting edge or penetrating point

Country Status (1)

Country Link
GB (1) GB791113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211672B (en) * 1958-03-07 1966-03-03 Stahlwerk Kabel C Pouplier Jr Process for the production of cut-resistant and rustproof cutting tools, such as band saws, band knives, knife blades, from a durable austenitic stainless chromium-nickel steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211672B (en) * 1958-03-07 1966-03-03 Stahlwerk Kabel C Pouplier Jr Process for the production of cut-resistant and rustproof cutting tools, such as band saws, band knives, knife blades, from a durable austenitic stainless chromium-nickel steel

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