GB612105A - Improvements in or relating to the production of high speed steel powder and articles produced therefrom - Google Patents

Improvements in or relating to the production of high speed steel powder and articles produced therefrom

Info

Publication number
GB612105A
GB612105A GB353843A GB353843A GB612105A GB 612105 A GB612105 A GB 612105A GB 353843 A GB353843 A GB 353843A GB 353843 A GB353843 A GB 353843A GB 612105 A GB612105 A GB 612105A
Authority
GB
United Kingdom
Prior art keywords
powder
alloy
high speed
speed steel
quenching
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
GB353843A
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.)
NILS K G THOLAND
Original Assignee
NILS K G THOLAND
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 NILS K G THOLAND filed Critical NILS K G THOLAND
Priority to GB353843A priority Critical patent/GB612105A/en
Publication of GB612105A publication Critical patent/GB612105A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F9/00—Making metallic powder or suspensions thereof

Landscapes

  • Powder Metallurgy (AREA)

Abstract

A process for the production of high speed steel powder suitable for powder metallurgy which comprises preparing a ferrous alloy having a carbon content substantially in excess of that desired but being otherwise of the required composition, mechanically disintegrating the solid alloy to powder form and decarburizing the powder in the solid state to produce high speed steel of desired carbon content. The initial alloy may contain 1.5-3.0 per cent carbon and the decarburized alloy may contain 0.5-0.8 per cent carbon. The initial alloy in a molten state may be subdivided by granulation before reduction to powder and the granulating step may be followed immediately by a heat treatment involving heating and quenching to enhance the brittleness of the material, for example heating to at least 1000 DEG C. and quenching in water or oil. This treatment may be followed by heating at 580 DEG C-610 DEG C. and cooling normally without quenching. Specification 484,662 is referred to.
GB353843A 1943-03-03 1943-03-03 Improvements in or relating to the production of high speed steel powder and articles produced therefrom Expired GB612105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB353843A GB612105A (en) 1943-03-03 1943-03-03 Improvements in or relating to the production of high speed steel powder and articles produced therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB353843A GB612105A (en) 1943-03-03 1943-03-03 Improvements in or relating to the production of high speed steel powder and articles produced therefrom

Publications (1)

Publication Number Publication Date
GB612105A true GB612105A (en) 1948-11-09

Family

ID=9760201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB353843A Expired GB612105A (en) 1943-03-03 1943-03-03 Improvements in or relating to the production of high speed steel powder and articles produced therefrom

Country Status (1)

Country Link
GB (1) GB612105A (en)

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