EP0990055B1 - Verbesserte stähle für formgebungswerkzeuge - Google Patents

Verbesserte stähle für formgebungswerkzeuge Download PDF

Info

Publication number
EP0990055B1
EP0990055B1 EP98920603A EP98920603A EP0990055B1 EP 0990055 B1 EP0990055 B1 EP 0990055B1 EP 98920603 A EP98920603 A EP 98920603A EP 98920603 A EP98920603 A EP 98920603A EP 0990055 B1 EP0990055 B1 EP 0990055B1
Authority
EP
European Patent Office
Prior art keywords
steel
niobium
carbon
vanadium
cobalt
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 - Lifetime
Application number
EP98920603A
Other languages
English (en)
French (fr)
Other versions
EP0990055A1 (de
Inventor
Jacques Adrien
Bertrand Remi
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.)
Thyssen France SA
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 EP0990055A1 publication Critical patent/EP0990055A1/de
Application granted granted Critical
Publication of EP0990055B1 publication Critical patent/EP0990055B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
    • 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
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum

Definitions

  • the new semi-rapid steel produced from powder metallurgy has a dispersion of niobium carbides and chromium carbides (Fe-Cr) 4C preferably Cr 7 C 3 generated by a chromium content between 6.05 and 6.45% by weight giving it improved resistance to abrasive wear without reducing the characteristics of the other properties, in particular the toughness.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (2)

  1. Durch Pulvermetallurgie erzeugter Stahl, der, ausgehend von einem vorlegierten, agglomerierten und verdichteten Pulver hoher Reinheit hergestellt ist, dadurch gekennzeichnet, daß der Stahl gewichtsmäßig die folgende Zusammensetzung aufweist: Mangan < 1 % Silicium < 1 % Chrom 6,05-6,45 % Molybdän 2,50-3,50 % Vanadium 0,80-2 % Wolfram < 0,5 % Schwefel < 0,020 % Phosphor < 0,030 % Niob 0,60-1,60 % Kobalt 2 bis 5 % Stickstoff 0,050 bis 0,080 % Aluminium < 0,060 % Kohlenstoff 0,75-0,95 % Nickel < 0,50 %
    wobei der Rest Eisen zusammen mit den für die Praxis der Metallherstellung charakteristischen Verunreinigungen ist.
  2. Stahl nach Anspruch 1, gekennzeichnet durch: Mangan 0,20-0,40 % Silicium 0,20-0,40 % Molybdän 2,75-3,25 % Vanadium 0,90-1,30 % Niob 0,70-1,10 % Kobalt 2,60-3,40 % Kohlenstoff 0,78-0,85 % Nickel < 0,30 %
EP98920603A 1996-10-04 1998-04-09 Verbesserte stähle für formgebungswerkzeuge Expired - Lifetime EP0990055B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9612339A FR2754275B1 (fr) 1996-10-04 1996-10-04 Perfectionnements apportes aux aciers pour outils de mise en forme
PCT/FR1998/000725 WO1999053112A1 (fr) 1996-10-04 1998-04-09 Perfectionnements apportes aux aciers pour outils de mise en forme

Publications (2)

Publication Number Publication Date
EP0990055A1 EP0990055A1 (de) 2000-04-05
EP0990055B1 true EP0990055B1 (de) 2002-08-07

Family

ID=26233031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98920603A Expired - Lifetime EP0990055B1 (de) 1996-10-04 1998-04-09 Verbesserte stähle für formgebungswerkzeuge

Country Status (7)

Country Link
EP (1) EP0990055B1 (de)
AT (1) ATE221928T1 (de)
BR (1) BR9815563A (de)
DE (1) DE69807080T2 (de)
ES (1) ES2181215T3 (de)
FR (1) FR2754275B1 (de)
WO (1) WO1999053112A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809541A (en) * 1972-10-24 1974-05-07 G Steven Vanadium-containing tool steel article
BR7605089A (pt) * 1976-08-03 1976-12-28 Acos Villares Sa Ligas duras
SE457356C (sv) * 1986-12-30 1990-01-15 Uddeholm Tooling Ab Verktygsstaal avsett foer kallbearbetning

Also Published As

Publication number Publication date
BR9815563A (pt) 2006-02-14
FR2754275A1 (fr) 1998-04-10
EP0990055A1 (de) 2000-04-05
DE69807080D1 (de) 2002-09-12
ES2181215T3 (es) 2003-02-16
DE69807080T2 (de) 2003-02-06
WO1999053112A1 (fr) 1999-10-21
FR2754275B1 (fr) 1998-12-24
ATE221928T1 (de) 2002-08-15

Similar Documents

Publication Publication Date Title
US3410732A (en) Cobalt-base alloys
JP5143531B2 (ja) 冷間金型用鋼および金型
JPH116041A (ja) 高い衝撃靱性を持つ耐摩耗性粉末冶金冷間加工工具鋼物体及びそれを製造する方法
US5135587A (en) Machinable, strong, but crackable low ductility steel forging
US20100021339A1 (en) Components made of steels with an ultrahigh carbon content and with a reduced density and high scaling resistance
US6482354B1 (en) High-hardness powder metallurgy tool steel and article made therefrom
GB2186594A (en) Steel alloys
JP2725333B2 (ja) 粉末高速度工具鋼
US4322256A (en) Tool made from alloy steel for severe cold forming
US5908515A (en) Bearing component
JP3416869B2 (ja) 被削性に優れた低延性非調質鋼材
EP0990055B1 (de) Verbesserte stähle für formgebungswerkzeuge
EP1069201A2 (de) Stahl zum Induktionshärten
JPH08127831A (ja) 耐摩耗性に優れた銅合金製シンクロナイザリング
JP2001158937A (ja) 熱間加工用工具鋼とその製造方法および熱間加工用工具の製造方法
US5361968A (en) Method of manufacturing metallic press die
JPH0266139A (ja) 低酸素粉末高速度工具鋼
JP3236883B2 (ja) 肌焼鋼及びそれを用いた鋼管の製造方法
JPS61291954A (ja) 高温耐摩耐食焼結材料及びその製造方法
US4322247A (en) Alloy steel for severe cold forming
JP2001131683A (ja) 小ロット生産用金型鋼
JP3021256B2 (ja) 疲労破壊特性に優れた熱間工具鋼
JPH11335773A (ja) 冷間加工性に優れた軸受用鋼
JP4368032B2 (ja) 高速度工具鋼用粉末および粉末高速度工具鋼
JP2005002367A (ja) 破断分割性に優れる機械構造用非調質鋼

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE ES GB IT LI

AX Request for extension of the european patent

Free format text: SI PAYMENT 20000120

17P Request for examination filed

Effective date: 20000313

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20011228

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES GB IT LI

AX Request for extension of the european patent

Free format text: SI PAYMENT 20000120

REF Corresponds to:

Ref document number: 221928

Country of ref document: AT

Date of ref document: 20020815

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020807

REF Corresponds to:

Ref document number: 69807080

Country of ref document: DE

Date of ref document: 20020912

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BUGNION S.A.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2181215

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050409

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20091201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20100329

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20100406

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20100416

Year of fee payment: 13

Ref country code: DE

Payment date: 20100430

Year of fee payment: 13

Ref country code: AT

Payment date: 20100317

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20100413

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69807080

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69807080

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20110409

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 221928

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110409

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110430

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110409

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110409

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110409

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20120604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111031