EP0076027A3 - Powder metallurgy articles - Google Patents

Powder metallurgy articles Download PDF

Info

Publication number
EP0076027A3
EP0076027A3 EP82304064A EP82304064A EP0076027A3 EP 0076027 A3 EP0076027 A3 EP 0076027A3 EP 82304064 A EP82304064 A EP 82304064A EP 82304064 A EP82304064 A EP 82304064A EP 0076027 A3 EP0076027 A3 EP 0076027A3
Authority
EP
European Patent Office
Prior art keywords
vanadium
carbon
percent
max
article
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
EP82304064A
Other versions
EP0076027A2 (en
EP0076027B1 (en
Inventor
Walter T. Haswell
William Stasko
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.)
Crucible Materials Corp
Original Assignee
Colt Industries Operating Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23183484&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0076027(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Colt Industries Operating Corp filed Critical Colt Industries Operating Corp
Priority to AT82304064T priority Critical patent/ATE23567T1/en
Publication of EP0076027A2 publication Critical patent/EP0076027A2/en
Publication of EP0076027A3 publication Critical patent/EP0076027A3/en
Application granted granted Critical
Publication of EP0076027B1 publication Critical patent/EP0076027B1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • 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%
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use

Landscapes

  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Articles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Metal Rolling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Turning (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)

Abstract

A powder metallurgy article, e.g., a hot working roll or tool or a high toughness cold work tool such as a shear blade or slitter knife, formed from compacted prealloyed powder of an alloy consiting of, in weight percent, manganese 0.2 to 1.5, silicon 2 max., chromium 1.5 to 6, molybdenum 0.50 to 6, sulfur 0.30 max., vanadium 7 to 10, carbon expressed by the formula (.25 minimum, .40 maximum + .16 x percent vanadium), optical carbide forming elements such as tungsten and niobium in amounts up to 5 percent (with the corresponding stoichiometric carbon required for balance) may partially replace vanadium, optional cobalt additions may be included for heat resistance and balance iron and incidental impurities; the article is characterised by a fully martensitic structure with essentially no carbon in the steel matrix in excess of the carbon necessary to combine with the vanadium present to form vanadium carbides and to ensure said fully martensitic structure.
EP82304064A 1981-09-28 1982-08-02 Powder metallurgy articles Expired EP0076027B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82304064T ATE23567T1 (en) 1981-09-28 1982-08-02 MOLDINGS MANUFACTURED ACCORDING TO POWDER METALLURGICAL PROCESSES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30604081A 1981-09-28 1981-09-28
US306040 2002-11-27

Publications (3)

Publication Number Publication Date
EP0076027A2 EP0076027A2 (en) 1983-04-06
EP0076027A3 true EP0076027A3 (en) 1984-02-22
EP0076027B1 EP0076027B1 (en) 1986-11-12

Family

ID=23183484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304064A Expired EP0076027B1 (en) 1981-09-28 1982-08-02 Powder metallurgy articles

Country Status (10)

Country Link
EP (1) EP0076027B1 (en)
JP (1) JPS5858255A (en)
KR (1) KR840001456A (en)
AT (1) ATE23567T1 (en)
CA (1) CA1191039A (en)
DE (1) DE3274261D1 (en)
DK (1) DK158795C (en)
ES (1) ES8305424A1 (en)
IN (1) IN158518B (en)
MX (1) MX159525A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6029450A (en) * 1983-07-26 1985-02-14 Kanto Tokushu Seikou Kk Tool steel for cold working
JPS6362845A (en) * 1986-09-03 1988-03-19 Daido Steel Co Ltd Sintered tool steel
US5830287A (en) * 1997-04-09 1998-11-03 Crucible Materials Corporation Wear resistant, powder metallurgy cold work tool steel articles having high impact toughness and a method for producing the same
FR2767725B1 (en) * 1997-09-01 1999-10-08 Jean Claude Werquin COMPOSITE WORKING CYLINDER FOR HOT & COLD ROLLING IN HIGH CARBON AND HIGH VANADIUM STEEL AND ITS MANUFACTURING METHOD BY CENTRIFUGAL CASTING
NL1016811C2 (en) 2000-12-06 2002-06-13 Skf Ab Roller bearing comprising a part obtained with powder metallurgy technique.
US7288157B2 (en) * 2005-05-09 2007-10-30 Crucible Materials Corp. Corrosion and wear resistant alloy
EP2933345A1 (en) * 2014-04-14 2015-10-21 Uddeholms AB Cold work tool steel
CN113003576A (en) * 2021-02-25 2021-06-22 邵阳学院 Vanadium-niobium carbide nanosheet and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150444A (en) * 1962-04-26 1964-09-29 Allegheny Ludlum Steel Method of producing alloy steel
DE2722972A1 (en) * 1976-05-21 1977-11-24 Kobe Steel Ltd NITROGEN CONTAINING POWDER METALLURGY TOOL STEEL
FR2436824A1 (en) * 1978-09-20 1980-04-18 Crucible Inc CR-V STEEL POWDER, OBJECTS MANUFACTURED FROM THIS POWDER AND LIKELY OF HEAT TREATMENT

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150444A (en) * 1962-04-26 1964-09-29 Allegheny Ludlum Steel Method of producing alloy steel
DE2722972A1 (en) * 1976-05-21 1977-11-24 Kobe Steel Ltd NITROGEN CONTAINING POWDER METALLURGY TOOL STEEL
FR2436824A1 (en) * 1978-09-20 1980-04-18 Crucible Inc CR-V STEEL POWDER, OBJECTS MANUFACTURED FROM THIS POWDER AND LIKELY OF HEAT TREATMENT

Also Published As

Publication number Publication date
JPH0140904B2 (en) 1989-09-01
EP0076027A2 (en) 1983-04-06
JPS5858255A (en) 1983-04-06
IN158518B (en) 1986-11-29
DK158795C (en) 1990-12-24
ES513486A0 (en) 1983-04-01
KR840001456A (en) 1984-05-07
CA1191039A (en) 1985-07-30
ES8305424A1 (en) 1983-04-01
DK231882A (en) 1983-03-29
ATE23567T1 (en) 1986-11-15
DK158795B (en) 1990-07-16
DE3274261D1 (en) 1987-01-02
EP0076027B1 (en) 1986-11-12
MX159525A (en) 1989-06-27

Similar Documents

Publication Publication Date Title
EP0275475B1 (en) Tool steel
KR840006376A (en) Abrasion Resistant Stainless Steel
EP0599910B1 (en) High-speel manufactured by powder metallurgy
JPS61213348A (en) Alloy tool steel
WO1993002818A9 (en) High-speed steel manufactured by powder metallurgy
DE3274261D1 (en) Powder metallurgy articles
US3600160A (en) Heat and temper resistant alloy steel
US5578773A (en) High-speed steel manufactured by powder metallurgy
US4780139A (en) Tool steel
DE58902742D1 (en) USE OF AN IRON BASED ALLOY FOR THE POWDER METALLURGICAL PRODUCTION OF PARTS WITH HIGH CORROSION RESISTANCE, HIGH WEAR RESISTANCE AND HIGH TENSITY AND PRESSURE STRENGTH, ESPECIALLY FOR THE PROCESS.
JP2002535496A (en) Hard tool steels and powder metallurgy steels therefrom
US5525140A (en) High speed steel manufactured by powder metallurgy
ATE81874T1 (en) CORROSION RESISTANT COLD WORKING STEEL AND STEEL MATRIX-HARD COMPOSITE MATERIAL CONTAINING THIS COLD WORKING STEEL.
JPH02175847A (en) Powder cold tool steel
JPS5681657A (en) High brightness work roll material for sendzimir mill
JPS6442553A (en) Alloyed cast iron excellent in toughness and wear resistance
JPS6436748A (en) Graphite-crystallized nickel chromium cast iron material excellent in seizure resistance and slip resistance and roll for rolling
Breitler et al. Steel Particularly for Hot-Working Tools
Norstrom Hot Work Steel
Bucknall Chromium-An Appreciation
Sil'man et al. Characteristics of Microstructure and Elements Distribution in Complex-Alloyed White Cast Irons
JPH06279943A (en) Powder high speed tool steel having high hardness and high toughness
JPS5591959A (en) High-toughness low-alloy tool steel
Muraoka et al. Steel and Rolling Part Employing Same
JPH02179844A (en) Wear resistant alloy steel

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

Designated state(s): AT BE DE FR GB IT LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: COLT INDUSTRIES OPERATING CORP.

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19840409

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CRUCIBLE MATERIALS CORPORATION

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT LU NL SE

REF Corresponds to:

Ref document number: 23567

Country of ref document: AT

Date of ref document: 19861115

Kind code of ref document: T

ITF It: translation for a ep patent filed
ET Fr: translation filed
REF Corresponds to:

Ref document number: 3274261

Country of ref document: DE

Date of ref document: 19870102

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

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

Ref country code: LU

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

Effective date: 19870831

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

Ref country code: NL

Payment date: 19870831

Year of fee payment: 6

26 Opposition filed

Opponent name: UDDEHOLM TOOLING AKTIEBOLAG

Effective date: 19870731

NLR1 Nl: opposition has been filed with the epo

Opponent name: UDDEHOLM TOOLING AKTIEBOLAG

26 Opposition filed

Opponent name: VEREINIGTE EDELSTAHLWERKE AKTIENGESELLSCHAFT (VEW)

Effective date: 19870812

NLR1 Nl: opposition has been filed with the epo

Opponent name: VEREINIGTE EDELSTAHLWERKE AKTIENGESELLSCHAFT (VEW)

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

Ref country code: GB

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

Effective date: 19880802

Ref country code: AT

Effective date: 19880802

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

Ref country code: SE

Effective date: 19880803

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

Ref country code: BE

Effective date: 19880831

BERE Be: lapsed

Owner name: CRUCIBLE MATERIALS CORP.

Effective date: 19880831

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

Ref country code: NL

Effective date: 19890301

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
R26 Opposition filed (corrected)

Opponent name: UDDEHOLM TOOLING AKTIEBOLAG * 870812 VOEST-ALPINE

Effective date: 19870731

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

Ref country code: FR

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

Effective date: 19890428

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

Ref country code: DE

Effective date: 19890503

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19921102

EUG Se: european patent has lapsed

Ref document number: 82304064.7

Effective date: 19890510

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO