EP1300482B1 - Warmarbeitsstahlgegenstand - Google Patents

Warmarbeitsstahlgegenstand Download PDF

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Publication number
EP1300482B1
EP1300482B1 EP02450181A EP02450181A EP1300482B1 EP 1300482 B1 EP1300482 B1 EP 1300482B1 EP 02450181 A EP02450181 A EP 02450181A EP 02450181 A EP02450181 A EP 02450181A EP 1300482 B1 EP1300482 B1 EP 1300482B1
Authority
EP
European Patent Office
Prior art keywords
hot
work tool
steel article
steel
article according
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
EP02450181A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1300482A1 (de
Inventor
Kay Fisher
Herbert Schweiger
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.)
Voestalpine Boehler Edelstahl GmbH
Original Assignee
Boehler Edelstahl GmbH
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 Boehler Edelstahl GmbH filed Critical Boehler Edelstahl GmbH
Priority to SI200230254T priority Critical patent/SI1300482T1/sl
Publication of EP1300482A1 publication Critical patent/EP1300482A1/de
Application granted granted Critical
Publication of EP1300482B1 publication Critical patent/EP1300482B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering

Definitions

  • the invention relates to a hot-work tool steel article, in particular tool for forming metals and alloys at elevated temperatures.
  • tools that are stressed at elevated temperature, for example, extrusion dies, forging tools, die casting dies, Press punches, mandrels and the like. Materials are required, the load corresponding mechanical material properties at temperatures of optionally 550 ° C and above and possess these properties during maintained a long service life.
  • the expert is known that a tempering resistance or an unchanged Maintaining the mechanical properties of a thermally tempered Steel article is effected at elevated temperature by special carbides, the at carbon concentrations in the range of 0.5 wt.% and at chromium levels from 3 to 5 wt .-% Cr of the alloy can be formed, wherein molybdenum-tungsten and Vanadin content whose warm stability further increased.
  • the usual Hot work steels essentially have contents in wt .-% of 0.35 to 0.665 C, 2.0 to 7.0 Cr, 1.5 to 8.0 Mo and / or 1.5 to 18.0 W and 0.4 to 2.0 V, wherein Vanadium by higher molybdenum or especially higher Tungsten concentrations can be replaced.
  • a powder metallurgically produced hot-work steel which is characterized by a content of Carbides of type MC is characterized by 1.5 to 2.5 vol .-%, is from the WO 00/26427 become known.
  • a material hardness of 58 to 59 HRC at which increasingly tools are to be provided for cold work, both act higher as well as lower MC contents than 2.5 to 1.5 vol .-% disadvantageous to the Impact toughness.
  • the Invention Based on the knowledge and the resulting resulting technical solutions of the metallurgical experts is the Invention the task is based on the shortcomings in the given state of the art and to create a hot-work tool steel object that at high Material hardening and the like strength properties simultaneously Ensures toughness values at a significantly elevated level and at good thermal conductivity improved resistance to wear at elevated Temperatures and an effective extension of the life of the part at reinforced, possibly jerky stresses.
  • the in Claim 1 specified impact work SBP is in accordance with STEEL EISEN test sheets (SEP) 1314 determined, the determination of the notch impact work has to DIN EN 10045.
  • SEP STEEL EISEN test sheets
  • the advantages achieved by the invention are essentially to be seen in that by alloy technology or by a balanced concentration of carbon and carbide-forming elements in steel Solid solution hardening with low carbide content is possible. It can Curing to values greater than 58 according to the lighter carbon solubility HRC of lower Austenitmaschinestemperaturen, for example, from 1080 ° C or lower, which promotes the fine granularity of the material and advantageous in the With regard to high material toughness.
  • a carbon content of at least 0.451 wt% is important to the minimum activity of carbon for a strain of the lattice of the Matrix crystals and a carbide formation tendency in the proposed chromium-molybdenum and vanadium concentrations, but higher Carbon contents of the alloy as 0.598 wt .-% one the wear resistance although promoting, but the hardness and toughness of the object adversely have an influencing effect.
  • the chromium content is synergistic in the narrow To set limits between 4,21 and 4,98% by weight.
  • the choice of the contents of carbon and vanadium is made so that the ratio: concentration of V broken by that of C equals 0.82 to 1.38.
  • concentration of V broken by that of C equals 0.82 to 1.38.
  • An increase in hardness with increase in the tempering resistance, an improvement in the Hot wear resistance and service life of a hot work tool steel article can be achieved if the ratio of the concentrations of Chromium + molybdenum + vanadium broken by the carbon content between 15.2 and 18.4.
  • the hot-work steel article preferably has a share in the Solidification in the melt formed carbides of less than 0.45 vol .-%. On the one hand, this results in a depletion of the mixed crystals with respect to the Prevents carbon and to achieve a further increase in hardness, On the other hand, it has been found that increasing the thermal conductivity of the Hot working steel material achieved. An improvement in thermal conductivity By reducing the carbide content in the material is still scientifically not secured, but could at an interface kinetics and / or on the Properties of the carbides are based.
  • a hot work tool steel article having a particularly high performance profile may be produced when at one temperature of 500 ° C one or both of the mechanical steels value (s) is equal to or greater than: Bending work: SBP 180 J Longitudinal impact: Charpy-U 14 J and the hardness at RT is 59 HRC and higher.
  • Table 1 gives the chemical compositions of some of the materials investigated in the development work.
  • Chemical composition wt% alloy C Si Mn Cr V Not a word Co A 00:39 00:23 00:32 4.27 00:52 2.90 B 00:52 00:25 00:25 4:45 0.68 3.21 C 00:43 00:28 00:24 4:48 00:58 4:36 D 00:40 00:28 00:24 4:37 0.80 4:39 e 00:48 00:30 00:26 4:48 00:56 3.10 F 00:52 00:17 00:16 4:38 00:54 4:57 G 00:53 00:29 00:26 4:51 0.84 4:56 1.2367 00:38 00:35 00:32 5:07 0.67 2.83 ⁇ 1.2885 00:38 00:28 00:37 2.95 0.67 2.83 2.9
  • the materials designated in Table 1 with alloys B and E have a Composition according to the invention, with 1.2367 and 1.2885 are samples with The material numbers are marked according to DIN steel iron list, the latter Sample with respect to the carbon content outside the prescribed Borders lies.
  • Time temperature Time number A 1100 ° C 30 min 560 ° C 60min 3x 56 B 1060 ° C 30 min 560 ° C 60min 3x 59 C 1100 ° C 30 min 530 ° C 60min 3x 59 D 1100 ° C 30 min 560 ° C 60min 3x 56 e 1060 ° C 30 min 560 ° C 60min 3x 58 F 1060 ° C 30 min 550 ° C 60min 3x 58 G 1060 ° C 30 min 550 ° C 60min 3x 59 1.2367 1100 ° C 30 min 550 ° C / 120min + 560 ° C / 120min 56 ⁇ 1.2885 1100 ° C 30 min 550 ° C / 120min + 560 ° C / 120min 56 ⁇ 1.2885 1100 ° C 30 min 550 ° C / 120min + 560 ° C / 120min 56 ⁇ 1.2885 1100 ° C 30 min 550 ° C / 120min + 560
  • the alloy A is opposite to the invention Alloys lowered hardness as well as impact resistance and notched impact values because apparently due to the low carbon content is not sufficient Matrix strength has been achieved.
  • the material of alloy C has one high hardness, but a very low toughness, indicating a low Carbon content in conjunction with a high molybdenum concentration, so on a matrix depletion, indicates.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Telephone Function (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Meat, Egg Or Seafood Products (AREA)
EP02450181A 2001-10-03 2002-08-27 Warmarbeitsstahlgegenstand Expired - Lifetime EP1300482B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200230254T SI1300482T1 (sl) 2001-10-03 2002-08-27 Izdelek iz orodnega jekla za uporabo v vrocem stanju

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT15652001 2001-10-03
AT0156501A AT410447B (de) 2001-10-03 2001-10-03 Warmarbeitsstahlgegenstand

Publications (2)

Publication Number Publication Date
EP1300482A1 EP1300482A1 (de) 2003-04-09
EP1300482B1 true EP1300482B1 (de) 2005-12-21

Family

ID=3688360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02450181A Expired - Lifetime EP1300482B1 (de) 2001-10-03 2002-08-27 Warmarbeitsstahlgegenstand

Country Status (10)

Country Link
US (1) US6773662B2 (es)
EP (1) EP1300482B1 (es)
JP (1) JP3867272B2 (es)
AT (2) AT410447B (es)
CA (1) CA2405278C (es)
DE (1) DE50205334D1 (es)
DK (1) DK1300482T3 (es)
ES (1) ES2254638T3 (es)
PT (1) PT1300482E (es)
SI (1) SI1300482T1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8557056B2 (en) 2006-08-09 2013-10-15 Rovalma, S.A. Process for setting the thermal conductivity of a steel, tool steel, in particular hot-work steel, and steel object

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100402689C (zh) * 2002-06-13 2008-07-16 尤迪霍尔姆工具公司 钢和塑料材料用的钢制模具
WO2004042475A1 (ja) * 2002-11-07 2004-05-21 Asahi Glass Company, Limited レジスト組成物
US20100199738A1 (en) * 2004-08-13 2010-08-12 Vip Tooling, Inc., (An Indiana Corporation) Modular extrusion die tools
US7685907B2 (en) * 2004-08-13 2010-03-30 Vip Tooling, Inc. Method for manufacturing extrusion die tools
JP5029942B2 (ja) * 2006-01-30 2012-09-19 日立金属株式会社 靭性に優れた熱間工具鋼
AT506790B1 (de) * 2008-11-20 2009-12-15 Boehler Edelstahl Gmbh & Co Kg Warmarbeitsstahl-legierung
AT507597B1 (de) 2008-12-05 2010-09-15 Boehler Edelstahl Gmbh & Co Kg Stahllegierung für maschinenkomponenten
AT507215B1 (de) * 2009-01-14 2010-03-15 Boehler Edelstahl Gmbh & Co Kg Verschleissbeständiger werkstoff
IT1401998B1 (it) 2010-09-30 2013-08-28 Danieli Off Mecc Cesoia di taglio di prodotti laminati e relativo processo di produzione
EP2682491B1 (en) 2011-03-03 2018-07-04 Hitachi Metals, Ltd. Hot work tool steel having excellent toughness, and process of producing same
CN105579604A (zh) 2013-09-27 2016-05-11 日立金属株式会社 高速工具钢及其制造方法
CN103993239A (zh) * 2014-04-23 2014-08-20 中建材宁国新马耐磨材料有限公司 一种矿山湿法磨机衬板及其制备方法
DE102018113600A1 (de) * 2018-06-07 2019-12-12 Voestalpine Böhler Edelstahl Gmbh & Co Kg Verfahren zum Herstellen eines Gegenstandes aus einem Warmarbeitsstahl
CN112024798B (zh) * 2020-08-25 2022-05-31 无锡继平锻造有限公司 一种特殊船用后管体锻件的锻造及其机械加工工艺
CN113584394A (zh) * 2021-08-05 2021-11-02 安徽安簧机械股份有限公司 一种热锻模具钢及其制备方法、活塞锻造成型模具及其制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092491A (en) * 1957-05-02 1963-06-04 Crucible Steel Co America High strength alloy steel for atmospheric and elevated temperature service
US4853181A (en) 1986-06-18 1989-08-01 Wert David E Hot work tool steel
JP3257649B2 (ja) * 1993-05-13 2002-02-18 日立金属株式会社 高靭性高速度鋼部材およびその製造方法
DE4321433C1 (de) 1993-06-28 1994-12-08 Thyssen Stahl Ag Verwendung eines Warmarbeitsstahls
AT403058B (de) 1995-03-23 1997-11-25 Boehler Edelstahl Eisenbasislegierung zur verwendung bei erhöhter temperatur und werkzeug aus dieser legierung
DE59609657D1 (de) 1996-06-17 2002-10-17 Hau Hanspeter PM-Warmarbeitsstahl und Verfahren zu dessen Herstellung
JPH10273756A (ja) * 1997-03-31 1998-10-13 Daido Steel Co Ltd 鋳物製冷間工具およびその製造方法
DE59804046D1 (de) * 1998-02-27 2002-06-13 Boehler Edelstahl Gmbh & Co Kg Eisenbasislegierung zur Verwendung bei erhöhten Temperaturen
SE512970C2 (sv) 1998-10-30 2000-06-12 Erasteel Kloster Ab Stål, användning av stålet, av stålet framställd produkt samt sätt att tillverka stålet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8557056B2 (en) 2006-08-09 2013-10-15 Rovalma, S.A. Process for setting the thermal conductivity of a steel, tool steel, in particular hot-work steel, and steel object
EP3228724A1 (de) 2006-08-09 2017-10-11 Rovalma, S.A. Verfahren zur einstellung der wärmeleitfähigkeit eines stahls, werkzeugstahl, insbesondere warmarbeitsstahl, und stahlgegenstand

Also Published As

Publication number Publication date
DK1300482T3 (da) 2006-04-18
PT1300482E (pt) 2006-05-31
SI1300482T1 (sl) 2006-04-30
CA2405278A1 (en) 2003-04-03
EP1300482A1 (de) 2003-04-09
AT410447B (de) 2003-04-25
US6773662B2 (en) 2004-08-10
DE50205334D1 (de) 2006-01-26
ATA15652001A (de) 2002-09-15
CA2405278C (en) 2007-07-31
US20030098097A1 (en) 2003-05-29
ES2254638T3 (es) 2006-06-16
JP2003155540A (ja) 2003-05-30
ATE313650T1 (de) 2006-01-15
JP3867272B2 (ja) 2007-01-10

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