AR015385A1 - METHOD FOR PRODUCING STEEL FOR LARGE MOLDS AND STEEL SO OBTAINED - Google Patents

METHOD FOR PRODUCING STEEL FOR LARGE MOLDS AND STEEL SO OBTAINED

Info

Publication number
AR015385A1
AR015385A1 ARP980102636A ARP980102636A AR015385A1 AR 015385 A1 AR015385 A1 AR 015385A1 AR P980102636 A ARP980102636 A AR P980102636A AR P980102636 A ARP980102636 A AR P980102636A AR 015385 A1 AR015385 A1 AR 015385A1
Authority
AR
Argentina
Prior art keywords
steel
torr
ppm
large molds
producing
Prior art date
Application number
ARP980102636A
Other languages
Spanish (es)
Original Assignee
Thyssen France 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 Thyssen France Sa filed Critical Thyssen France Sa
Publication of AR015385A1 publication Critical patent/AR015385A1/en

Links

Classifications

    • 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
    • C22C38/38Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La presente invencion se refiere a un método para producir acero para grandes moldes. De acuerdo con la invencion, este acero se obtiene mediante la fusionen un horno eléctrico seguido por una operacion metalurgica secundaria en una cuchara decalent amiento, siendo dicha operacion, seguida por un desgaseado bajoun vacio de menos de 1 torr, de hecho 0,2 torr, de una mezcla que tiene la siguiente composicion: manganeso, del 1 al 3%; silicio, < = 0,400%, fosforo,< = 0,015%, cromo de 1,5 a3,5%; mol ibdeno del0,25 al 1%; niobio, del 0,100 a 0,250%; de 100 a 300 ppm, de titanio o de circonio si fuese necesario; cobre,< = 0,300%; niquel, < = 0,300%; nitrogeno, < = 80ppm; oxígeno, <=80 ppm;calcio, <= 30ppm; de 15 a 50ppm de boro; de 0,10a 0,25% de carbono; azufre,< = 0,050%;aluminio < = 250ppm. También se propone el acero obtenido con dicho método.The present invention relates to a method for producing steel for large molds. According to the invention, this steel is obtained by fusing an electric furnace followed by a secondary metallurgical operation in a low-pressure spoon, said operation being followed by a degassing under a vacuum of less than 1 torr, in fact 0.2 torr , of a mixture having the following composition: manganese, from 1 to 3%; silicon, <= 0.400%, phosphorus, <= 0.015%, chromium from 1.5 to 3.5%; mol ibdeno from 0.25 to 1%; niobium, from 0.100 to 0.250%; 100 to 300 ppm, titanium or zirconium if necessary; copper, <= 0.300%; nickel, <= 0.300%; nitrogen, <= 80ppm; oxygen, <= 80 ppm; calcium, <= 30ppm; from 15 to 50ppm of boron; from 0.10 to 0.25% carbon; sulfur, <= 0.050%; aluminum <= 250ppm. The steel obtained with this method is also proposed.

ARP980102636A 1997-06-04 1998-06-04 METHOD FOR PRODUCING STEEL FOR LARGE MOLDS AND STEEL SO OBTAINED AR015385A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9707138A FR2764308B1 (en) 1997-06-04 1997-06-04 PROCESS FOR THE MANUFACTURE OF A STEEL FOR LARGE DIMENSION MOLDS

Publications (1)

Publication Number Publication Date
AR015385A1 true AR015385A1 (en) 2001-05-02

Family

ID=9507783

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP980102636A AR015385A1 (en) 1997-06-04 1998-06-04 METHOD FOR PRODUCING STEEL FOR LARGE MOLDS AND STEEL SO OBTAINED

Country Status (13)

Country Link
EP (1) EP0882808B1 (en)
CN (1) CN1079839C (en)
AR (1) AR015385A1 (en)
AT (1) ATE212385T1 (en)
AU (1) AU748866B2 (en)
BR (1) BR9814777A (en)
DE (1) DE69803514T2 (en)
ES (1) ES2170462T3 (en)
FR (1) FR2764308B1 (en)
HK (1) HK1019901A1 (en)
MY (1) MY120154A (en)
PT (1) PT882808E (en)
SG (1) SG63849A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3514182B2 (en) 1999-08-31 2004-03-31 住友金属工業株式会社 Low Cr ferritic heat resistant steel excellent in high temperature strength and toughness and method for producing the same
DE50100349D1 (en) * 2001-04-17 2003-08-07 Buderus Edelstahlwerke Ag Use of a tool steel for plastic molds
FR2838138B1 (en) * 2002-04-03 2005-04-22 Usinor STEEL FOR THE MANUFACTURE OF PLASTIC INJECTION MOLDS OR FOR THE MANUFACTURE OF WORKPIECES FOR METAL WORKING
FR2838137A1 (en) * 2002-04-03 2003-10-10 Usinor STEEL FOR THE MANUFACTURE OF MOLDS FOR INJECTION MOLDING OF PLASTIC MATERIALS OR FOR THE MANUFACTURE OF TOOLS FOR THE WORKING OF METALS
EP2123787A1 (en) 2008-05-06 2009-11-25 Industeel Creusot High-grade steel for massive parts.
JP5412851B2 (en) * 2009-01-29 2014-02-12 大同特殊鋼株式会社 Steel for plastic molds and plastic molds
CN102787206B (en) * 2012-08-06 2014-12-10 攀钢集团江油长城特殊钢有限公司 Smelting method for controlling nitrogen content in steel ingot of medium carbon chromous mold steel and steel ingot
CN103774047B (en) * 2012-10-20 2017-03-01 大同特殊钢株式会社 There is the mould steel of excellent thermal conductance, mirror polishability and toughness
CN105839011A (en) * 2016-04-08 2016-08-10 太仓市沪太热处理厂 Large-size cold work die steel and heat treatment technique thereof
TWI756226B (en) * 2016-06-30 2022-03-01 瑞典商伍德赫爾恩股份有限公司 A steel for a tool holder
CN106987769B (en) * 2017-03-29 2018-08-03 苏州浩焱精密模具有限公司 A kind of high rigidity fine etching cutting die
JP7167483B2 (en) * 2018-05-15 2022-11-09 大同特殊鋼株式会社 Steel for die casting molds and die casting molds
CN108893682B (en) * 2018-08-01 2020-10-09 攀钢集团攀枝花钢铁研究院有限公司 Die steel billet and preparation method thereof
CN112501447A (en) * 2020-11-16 2021-03-16 山西太钢不锈钢股份有限公司 Smelting method of 18CrNiMo7-6 steel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2000542A1 (en) * 1968-01-22 1969-09-12 Nippon Kokan Kk
JP2881869B2 (en) * 1989-12-06 1999-04-12 大同特殊鋼株式会社 Steel for plastic molds with excellent weldability
US5213634A (en) * 1991-04-08 1993-05-25 Deardo Anthony J Multiphase microalloyed steel and method thereof
JP3139876B2 (en) * 1993-04-05 2001-03-05 新日本製鐵株式会社 Method of manufacturing non-heat treated steel for hot forging and non-heat treated hot forged product, and non-heat treated hot forged product

Also Published As

Publication number Publication date
AU6981098A (en) 1998-12-10
FR2764308A1 (en) 1998-12-11
MY120154A (en) 2005-09-30
CN1079839C (en) 2002-02-27
CN1215762A (en) 1999-05-05
FR2764308B1 (en) 1999-07-23
DE69803514D1 (en) 2002-03-14
DE69803514T2 (en) 2002-08-29
PT882808E (en) 2002-07-31
EP0882808A1 (en) 1998-12-09
BR9814777A (en) 2000-10-24
EP0882808B1 (en) 2002-01-23
HK1019901A1 (en) 2000-03-03
ATE212385T1 (en) 2002-02-15
ES2170462T3 (en) 2002-08-01
AU748866B2 (en) 2002-06-13
SG63849A1 (en) 1999-03-30

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