GB834973A - Improvements in or relating to the manufacture of mill rolls - Google Patents

Improvements in or relating to the manufacture of mill rolls

Info

Publication number
GB834973A
GB834973A GB14729/58A GB1472958A GB834973A GB 834973 A GB834973 A GB 834973A GB 14729/58 A GB14729/58 A GB 14729/58A GB 1472958 A GB1472958 A GB 1472958A GB 834973 A GB834973 A GB 834973A
Authority
GB
United Kingdom
Prior art keywords
relating
manufacture
mill rolls
aluminium
steel
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
GB14729/58A
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.)
Cockerill Ougree SA
Original Assignee
Cockerill Ougree SA
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 Cockerill Ougree SA filed Critical Cockerill Ougree SA
Publication of GB834973A publication Critical patent/GB834973A/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
    • C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies

Landscapes

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

Abstract

A steel containing less than 5% of any element other than iron and from 0.8 to 1% of carbon is successively annealed and slowly cooled from 900 to 1000 DEG C., 800 to 900 DEG C. and then heated for 4 to 48 hours at 625 to 715 DEG C. The steel may contain an austenitic grain refining additions, such as aluminium, titanium, or an alloy containing 49% silicon 21.6% aluminium and 28% calcium, added at the rate of 0.5 to 5 kgs. per metric ton.
GB14729/58A 1957-08-09 1958-05-08 Improvements in or relating to the manufacture of mill rolls Expired GB834973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU834973X 1957-08-09

Publications (1)

Publication Number Publication Date
GB834973A true GB834973A (en) 1960-05-18

Family

ID=19733954

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14729/58A Expired GB834973A (en) 1957-08-09 1958-05-08 Improvements in or relating to the manufacture of mill rolls

Country Status (1)

Country Link
GB (1) GB834973A (en)

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