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IT1250001B - PROCESSING PROCESS OF A STEEL FROM TOOLS INTENDED PARTICULARLY FOR THE MANUFACTURE OF MOLDS AND STEEL OBTAINED THROUGH THIS PROCEDURE. - Google Patents

PROCESSING PROCESS OF A STEEL FROM TOOLS INTENDED PARTICULARLY FOR THE MANUFACTURE OF MOLDS AND STEEL OBTAINED THROUGH THIS PROCEDURE.

Info

Publication number
IT1250001B
IT1250001B ITTO910663A ITTO910663A IT1250001B IT 1250001 B IT1250001 B IT 1250001B IT TO910663 A ITTO910663 A IT TO910663A IT TO910663 A ITTO910663 A IT TO910663A IT 1250001 B IT1250001 B IT 1250001B
Authority
IT
Italy
Prior art keywords
steel
manufacture
less
molds
procedure
Prior art date
Application number
ITTO910663A
Other languages
Italian (it)
Inventor
Gilbert Primon
Jean Beguinot
Lucien Cadiou
Original Assignee
Creusot Loire
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 Creusot Loire filed Critical Creusot Loire
Publication of ITTO910663A0 publication Critical patent/ITTO910663A0/en
Publication of ITTO910663A1 publication Critical patent/ITTO910663A1/en
Application granted granted Critical
Publication of IT1250001B publication Critical patent/IT1250001B/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La presente invenzione si riferisce ad un procedimento di trattamento di un acciaio da utensili destinato in particolare alla fabbricazione di stampi ad iniezione, come pure ad una acciaio da utensili ottenuto con il procedimento. Secondo questo procedimento:- si tratta un acciaio contenente nella sua composizione:da 0,2 a 2% di carbonio da 0,2 a 2% di manganese da 0,35 a 20% di cromo meno di 5% di nichel meno di 5% di molibdeno meno di 5% di vanadio e/oppure di tungsteno, in aggiunta da 0,01 a 0,02% di zolfo il resto essendo ferro;- durante il suo trattamento sotto vuoto, si deossida l'acciaio allo stato fuso agitandolo in presenza di un elemento deossidante;- si risolfora, sotto atmosfera controllata, l'acciaio allo stato fuso per raggiungere un tenore in zolfo determinato;- si cola l'acciaio assicurando una solidificazione progressiva e regolare per eliminare i ritardi locali di solidificazione.L'intervallo di tenore in zolfo viene determinato per conciliare le attitudini alla lavorazione meccanica, come pure alla lucidatura e alla granitura.The present invention relates to a process for treating tool steel intended in particular for the manufacture of injection molds, as well as for tool steel obtained by the process. According to this process: - it is a steel containing in its composition: from 0.2 to 2% carbon from 0.2 to 2% manganese from 0.35 to 20% chromium less than 5% nickel less than 5 % of molybdenum less than 5% of vanadium and / or of tungsten, in addition from 0.01 to 0.02% of sulfur the rest being iron; - during its treatment under vacuum, the steel is deoxidized in the molten state by shaking it in the presence of a deoxidizing element; - steel is melted under controlled atmosphere to reach a determined sulfur content; - steel is poured ensuring progressive and regular solidification to eliminate local solidification delays. The sulfur content range is determined to reconcile aptitudes for mechanical processing, as well as for polishing and graining.

ITTO910663A 1990-08-29 1991-08-27 PROCESSING PROCESS OF A STEEL FROM TOOLS INTENDED PARTICULARLY FOR THE MANUFACTURE OF MOLDS AND STEEL OBTAINED THROUGH THIS PROCEDURE. IT1250001B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9010780A FR2666351B1 (en) 1990-08-29 1990-08-29 PROCESS FOR THE DEVELOPMENT OF A TOOL STEEL, ESPECIALLY FOR THE MANUFACTURE OF MOLDS AND STEEL OBTAINED BY THIS PROCESS.

Publications (3)

Publication Number Publication Date
ITTO910663A0 ITTO910663A0 (en) 1991-08-27
ITTO910663A1 ITTO910663A1 (en) 1993-02-27
IT1250001B true IT1250001B (en) 1995-03-30

Family

ID=9399939

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910663A IT1250001B (en) 1990-08-29 1991-08-27 PROCESSING PROCESS OF A STEEL FROM TOOLS INTENDED PARTICULARLY FOR THE MANUFACTURE OF MOLDS AND STEEL OBTAINED THROUGH THIS PROCEDURE.

Country Status (6)

Country Link
EP (1) EP0475804B1 (en)
BE (1) BE1006831A5 (en)
DE (1) DE69116042T2 (en)
ES (1) ES2034892B1 (en)
FR (1) FR2666351B1 (en)
IT (1) IT1250001B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19531260C5 (en) * 1995-08-25 2006-06-22 Edelstahlwerke Buderus Ag Process for producing a hot-work tool steel
RU2145355C1 (en) * 1997-11-11 2000-02-10 ОАО "Нижнетагильский металлургический комбинат" Method of steel melting in converter
RU2136764C1 (en) * 1998-07-29 1999-09-10 Открытое акционерное общество Нижнетагильский металлургический комбинат Method of conversion of vanadium iron in converter
RU2140458C1 (en) * 1998-08-25 1999-10-27 Открытое акционерное общество Нижнетагильский металлургический комбинат Vanadium cast iron conversion method
RU2157414C1 (en) * 1999-07-07 2000-10-10 ОАО "Нижнетагильский металлургический комбинат" Method of conversion of vanadium irons in steel making units
RU2186124C2 (en) * 2000-06-29 2002-07-27 Открытое акционерное общество "Нижнетагильский металлургический комбинат" Method of pig iron conversion
FR2823768B1 (en) * 2001-04-18 2003-09-05 Usinor TOOL STEEL WITH REINFORCED TENACITY, METHOD FOR MANUFACTURING PARTS THEREOF AND PARTS OBTAINED
ITMI20011402A1 (en) * 2001-07-02 2003-01-02 Lucchini S P A STEEL WITH EXCELLENT WORKABILITY PROPERTIES TO MACHINE TOOLS AND AFTER HARDENING HEAT TREATMENT EXCELLENT MECHANICAL PROPERTIES
CN104498842A (en) * 2014-12-29 2015-04-08 芜湖金龙模具锻造有限责任公司 Boron-antimony alloy roll material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290128A (en) * 1966-02-21 1966-12-06 United States Steel Corp Steel weldments
JPS5323764B1 (en) * 1971-06-21 1978-07-17
SE363351B (en) * 1972-05-26 1974-01-14 Stora Kopparbergs Bergslags Ab
US4012227A (en) * 1975-06-19 1977-03-15 The International Nickel Company, Inc. Highly castable, weldable, corrosion resistant stainless steel
AT390806B (en) * 1983-09-23 1990-07-10 Kos Bernd AUSTENITIC MANGANIC STEEL AND METHOD FOR THE PRODUCTION THEREOF
US4673433A (en) * 1986-05-28 1987-06-16 Uddeholm Tooling Aktiebolag Low-alloy steel material, die blocks and other heavy forgings made thereof and a method to manufacture the material
US4711677A (en) * 1986-07-18 1987-12-08 The Garrett Corporation High temperature bushing alloy

Also Published As

Publication number Publication date
DE69116042T2 (en) 1996-05-15
DE69116042D1 (en) 1996-02-15
ES2034892A1 (en) 1993-04-01
FR2666351B1 (en) 1993-11-12
FR2666351A1 (en) 1992-03-06
ITTO910663A1 (en) 1993-02-27
EP0475804A1 (en) 1992-03-18
EP0475804B1 (en) 1996-01-03
BE1006831A5 (en) 1995-01-03
ITTO910663A0 (en) 1991-08-27
ES2034892B1 (en) 1994-04-01

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950831