FR2384573A1 - Steel strip continuous mfr. - by reducing iron oxide pellets to sponge iron pellets which are hot rolled - Google Patents

Steel strip continuous mfr. - by reducing iron oxide pellets to sponge iron pellets which are hot rolled

Info

Publication number
FR2384573A1
FR2384573A1 FR7808366A FR7808366A FR2384573A1 FR 2384573 A1 FR2384573 A1 FR 2384573A1 FR 7808366 A FR7808366 A FR 7808366A FR 7808366 A FR7808366 A FR 7808366A FR 2384573 A1 FR2384573 A1 FR 2384573A1
Authority
FR
France
Prior art keywords
pellets
iron oxide
steel strip
sponge
hot rolled
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.)
Granted
Application number
FR7808366A
Other languages
French (fr)
Other versions
FR2384573B1 (en
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.)
Davy Loewy Ltd
Original Assignee
Davy Loewy Ltd
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
Priority claimed from GB12311/77A external-priority patent/GB1601351A/en
Application filed by Davy Loewy Ltd filed Critical Davy Loewy Ltd
Publication of FR2384573A1 publication Critical patent/FR2384573A1/en
Application granted granted Critical
Publication of FR2384573B1 publication Critical patent/FR2384573B1/fr
Granted 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
    • C22C33/0235—Starting from compounds, e.g. oxides
    • 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
    • B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Metal Rolling (AREA)
  • Manufacture Of Iron (AREA)
  • Powder Metallurgy (AREA)

Abstract

A l ong workpiece or strip is made from pellets contg. purified iron oxide, which may be partly reduced, bonded by an organic binder. Pellets are reduced by gas to form sponge pellets which are hot rolled in a rolling mill to make strip. Fe oxide pellets are of sizes 1-10mm.; 1.5-15mm.; or 3-7mm.; and the iron oxide pref. contains min. 98% Fe+ FeOx. Gas is pref. H2+CO used at 950-1200 degrees C and the sponge pellets are rolled at 900-1150 degrees C esp. in a non-oxidising atmos. Alloying powder(s) may be added to the sponge pellets before rolling; and/or pellets may be exposed to a carburising atmos. before rolling. Pellets are pref. rolled into steel strip. Steel strip is directly made from iron oxide pellets.
FR7808366A 1977-03-23 1978-03-22 Steel strip continuous mfr. - by reducing iron oxide pellets to sponge iron pellets which are hot rolled Granted FR2384573A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB12311/77A GB1601351A (en) 1977-03-23 1977-03-23 Manufacture of elongate workpiece from pelleted material
GB309978 1978-01-25

Publications (2)

Publication Number Publication Date
FR2384573A1 true FR2384573A1 (en) 1978-10-20
FR2384573B1 FR2384573B1 (en) 1982-11-26

Family

ID=26238021

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7808366A Granted FR2384573A1 (en) 1977-03-23 1978-03-22 Steel strip continuous mfr. - by reducing iron oxide pellets to sponge iron pellets which are hot rolled

Country Status (7)

Country Link
JP (1) JPS53127311A (en)
AU (1) AU516198B2 (en)
CA (1) CA1124976A (en)
DE (1) DE2812486A1 (en)
FR (1) FR2384573A1 (en)
IN (1) IN149774B (en)
IT (1) IT1093671B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403857A1 (en) * 1977-09-27 1979-04-20 British Steel Corp Ferrous metal strip made from iron ore - where enriched ore pellets are reduced and hot rolled for direct conversion into strip
FR2408419A1 (en) * 1977-11-15 1979-06-08 British Steel Corp PROCESS FOR THE PRODUCTION OF A STAINLESS STEEL AGGLOMERATED STRIP
FR2448570A1 (en) * 1979-02-08 1980-09-05 British Steel Corp Iron rod prodn. - by extruding reduced iron ore pellets

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144329A (en) * 1960-09-06 1964-08-11 Trafik Ab Method for producing rolled steel products
FR1450948A (en) * 1964-10-22 1966-06-24 Schloemann Ag Method and device for producing welded steel
FR2065977A5 (en) * 1969-10-15 1971-08-06 Battelle Development Corp
GB1246308A (en) * 1968-12-05 1971-09-15 Gkn Group Services Ltd Production of sintered metal articles direct from metal ore

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593378A (en) * 1968-09-03 1971-07-20 Exxon Research Engineering Co Briquetting press

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144329A (en) * 1960-09-06 1964-08-11 Trafik Ab Method for producing rolled steel products
FR1450948A (en) * 1964-10-22 1966-06-24 Schloemann Ag Method and device for producing welded steel
GB1246308A (en) * 1968-12-05 1971-09-15 Gkn Group Services Ltd Production of sintered metal articles direct from metal ore
FR2065977A5 (en) * 1969-10-15 1971-08-06 Battelle Development Corp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403857A1 (en) * 1977-09-27 1979-04-20 British Steel Corp Ferrous metal strip made from iron ore - where enriched ore pellets are reduced and hot rolled for direct conversion into strip
FR2408419A1 (en) * 1977-11-15 1979-06-08 British Steel Corp PROCESS FOR THE PRODUCTION OF A STAINLESS STEEL AGGLOMERATED STRIP
FR2448570A1 (en) * 1979-02-08 1980-09-05 British Steel Corp Iron rod prodn. - by extruding reduced iron ore pellets

Also Published As

Publication number Publication date
IN149774B (en) 1982-04-10
AU516198B2 (en) 1981-05-21
FR2384573B1 (en) 1982-11-26
IT1093671B (en) 1985-07-26
IT7821456A0 (en) 1978-03-22
AU3456778A (en) 1979-10-04
JPS53127311A (en) 1978-11-07
DE2812486A1 (en) 1978-09-28
CA1124976A (en) 1982-06-08

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Legal Events

Date Code Title Description
ST Notification of lapse