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EP2979772A4 - Steel material for die and process for producing same, process for producing prehardened steel product for die, and process for producing cold working die - Google Patents

Steel material for die and process for producing same, process for producing prehardened steel product for die, and process for producing cold working die

Info

Publication number
EP2979772A4
EP2979772A4 EP14776113.4A EP14776113A EP2979772A4 EP 2979772 A4 EP2979772 A4 EP 2979772A4 EP 14776113 A EP14776113 A EP 14776113A EP 2979772 A4 EP2979772 A4 EP 2979772A4
Authority
EP
European Patent Office
Prior art keywords
die
producing
cold working
steel material
prehardened
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
EP14776113.4A
Other languages
German (de)
French (fr)
Other versions
EP2979772B1 (en
EP2979772A1 (en
Inventor
Tatsuya Shouji
Masayoshi Date
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.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Publication of EP2979772A1 publication Critical patent/EP2979772A1/en
Publication of EP2979772A4 publication Critical patent/EP2979772A4/en
Application granted granted Critical
Publication of EP2979772B1 publication Critical patent/EP2979772B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/01—Selection of materials
    • 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
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • 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
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/004—Dispersions; Precipitations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Heat Treatment Of Articles (AREA)
EP14776113.4A 2013-03-29 2014-03-03 Process for producing steel material for die, process for producing prehardened steel product for die, and process for producing cold working die Active EP2979772B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013074239 2013-03-29
PCT/JP2014/055274 WO2014156487A1 (en) 2013-03-29 2014-03-03 Steel material for die and process for producing same, process for producing prehardened steel product for die, and process for producing cold working die

Publications (3)

Publication Number Publication Date
EP2979772A1 EP2979772A1 (en) 2016-02-03
EP2979772A4 true EP2979772A4 (en) 2016-10-12
EP2979772B1 EP2979772B1 (en) 2018-09-05

Family

ID=51623478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14776113.4A Active EP2979772B1 (en) 2013-03-29 2014-03-03 Process for producing steel material for die, process for producing prehardened steel product for die, and process for producing cold working die

Country Status (3)

Country Link
EP (1) EP2979772B1 (en)
JP (2) JP6032582B2 (en)
WO (1) WO2014156487A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6519226B2 (en) * 2015-02-26 2019-05-29 大同特殊鋼株式会社 Alloy tool steel
US10844456B2 (en) 2015-03-26 2020-11-24 Hitachi Metals, Ltd. Cold work tool and method for manufacturing same
CN109280849A (en) * 2018-10-26 2019-01-29 如皋市宏茂重型锻压有限公司 A kind of high performance hot-work die steel and its manufacturing process
CN111229950A (en) * 2018-11-29 2020-06-05 苏州玉田精密模具有限公司 Processing technique for punching female die core rod of discharge hole collecting pipe
CN111940611B (en) * 2020-08-07 2024-06-04 和县卜集振兴标准件厂 Method for improving precision of alloy steel stamping die
CN117660734B (en) * 2024-01-31 2024-06-04 成都先进金属材料产业技术研究院股份有限公司 Cold work die steel surface strengthening treatment method and cold work die steel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072691A2 (en) * 1999-07-30 2001-01-31 Hitachi Metals, Ltd. Tool steel with excellent workability, machinability and heat treatment characteristics, and die using same
JP2001049394A (en) * 1999-08-17 2001-02-20 Hitachi Metals Ltd Tool steel excellent in weldability and machinability, and die using the same
JP2002241894A (en) * 2000-12-13 2002-08-28 Hitachi Metals Ltd High hardness prehardened steel for cold working having excellent machinability, die for cold working using the steel and working method for the steel
WO2012115025A1 (en) * 2011-02-21 2012-08-30 日立金属株式会社 Manufacturing method for cold-working die

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0892657A (en) * 1994-09-29 1996-04-09 Daido Steel Co Ltd Production of prehardened steel bar and apparatus for producing the same
JP2001020041A (en) * 1999-07-08 2001-01-23 Hitachi Metals Ltd Tool steel excellent in weldability and machinability and tool and die
JP3365624B2 (en) 1999-07-30 2003-01-14 日立金属株式会社 Tool steel with excellent machinability and heat treatment and mold using the tool steel
JP2001129722A (en) 1999-11-01 2001-05-15 Amada Eng Center Co Ltd Saw blade
JP2001294974A (en) * 2000-04-12 2001-10-26 Hitachi Metals Ltd Tool steel excellent in machinability and small in dimensional change cause by heat treatment and its producing method
JP2001316769A (en) 2000-05-10 2001-11-16 Daido Steel Co Ltd Cold tool steel
JP3883788B2 (en) 2000-06-29 2007-02-21 山陽特殊製鋼株式会社 Cold tool steel for molds with excellent toughness and wear resistance
JP4093978B2 (en) 2004-03-23 2008-06-04 日本高周波鋼業株式会社 Tool steel with self-lubricating properties
JP2006150487A (en) 2004-11-29 2006-06-15 Nachi Fujikoshi Corp Saw blade
JP2006193790A (en) 2005-01-14 2006-07-27 Daido Steel Co Ltd Cold working tool steel
JP2008189982A (en) 2007-02-02 2008-08-21 Daido Steel Co Ltd Tool steel
JP5338188B2 (en) 2007-10-31 2013-11-13 大同特殊鋼株式会社 Alloy tool steel and manufacturing method thereof
JP5854332B2 (en) 2010-09-27 2016-02-09 日立金属株式会社 High hardness pre-hardened cold tool steel for surface PVD treatment, method for producing the same, and surface PVD treatment method therefor
JP5672466B2 (en) 2011-02-21 2015-02-18 日立金属株式会社 Cold work tool steel with excellent machinability

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072691A2 (en) * 1999-07-30 2001-01-31 Hitachi Metals, Ltd. Tool steel with excellent workability, machinability and heat treatment characteristics, and die using same
JP2001049394A (en) * 1999-08-17 2001-02-20 Hitachi Metals Ltd Tool steel excellent in weldability and machinability, and die using the same
JP2002241894A (en) * 2000-12-13 2002-08-28 Hitachi Metals Ltd High hardness prehardened steel for cold working having excellent machinability, die for cold working using the steel and working method for the steel
WO2012115025A1 (en) * 2011-02-21 2012-08-30 日立金属株式会社 Manufacturing method for cold-working die

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014156487A1 *

Also Published As

Publication number Publication date
JP6032582B2 (en) 2016-11-30
EP2979772B1 (en) 2018-09-05
JP6041231B2 (en) 2016-12-07
JPWO2014156487A1 (en) 2017-02-16
WO2014156487A1 (en) 2014-10-02
JP2016106176A (en) 2016-06-16
EP2979772A1 (en) 2016-02-03

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