GB1457293A - Production of tool steel articles - Google Patents

Production of tool steel articles

Info

Publication number
GB1457293A
GB1457293A GB1052573A GB1052573A GB1457293A GB 1457293 A GB1457293 A GB 1457293A GB 1052573 A GB1052573 A GB 1052573A GB 1052573 A GB1052573 A GB 1052573A GB 1457293 A GB1457293 A GB 1457293A
Authority
GB
United Kingdom
Prior art keywords
tool steel
production
sintered
psi
compacted
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
GB1052573A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1052573A priority Critical patent/GB1457293A/en
Publication of GB1457293A publication Critical patent/GB1457293A/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
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated steps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Abstract

1457293 Sintered tool steel H FORD and R J DAIN 22 Feb 1974 [5 March 1973] 10525/73 Heading C7D In the production of a sintered tool steel article, the tool steel powder (e.g. gas or water atomized) is compacted at 60,000-150,000 psi, the resulting compact is vacuum heated to reduce its oxygen level to below 500 ppm and finally liquid-phase sintered to a density of at least 90% theoretical. In the example, an atomized tool steel powder of the following composition by wt: was compacted isostatically at 100,000 psi in a sealed canister, the compact was then removed and heated to 1150‹C under vacuum, prior to liquid-phase sintering at 1260‹C in Ar.
GB1052573A 1973-03-05 1973-03-05 Production of tool steel articles Expired GB1457293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1052573A GB1457293A (en) 1973-03-05 1973-03-05 Production of tool steel articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1052573A GB1457293A (en) 1973-03-05 1973-03-05 Production of tool steel articles

Publications (1)

Publication Number Publication Date
GB1457293A true GB1457293A (en) 1976-12-01

Family

ID=9969433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1052573A Expired GB1457293A (en) 1973-03-05 1973-03-05 Production of tool steel articles

Country Status (1)

Country Link
GB (1) GB1457293A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee