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WO2004050933A1 - Steel for mold for use in molding plastic - Google Patents

Steel for mold for use in molding plastic Download PDF

Info

Publication number
WO2004050933A1
WO2004050933A1 PCT/JP2003/015303 JP0315303W WO2004050933A1 WO 2004050933 A1 WO2004050933 A1 WO 2004050933A1 JP 0315303 W JP0315303 W JP 0315303W WO 2004050933 A1 WO2004050933 A1 WO 2004050933A1
Authority
WO
WIPO (PCT)
Prior art keywords
steel
mold
less
molding plastic
molding
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.)
Ceased
Application number
PCT/JP2003/015303
Other languages
French (fr)
Japanese (ja)
Inventor
Tomoaki Sera
Masahide Umino
Takeshi JO
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of WO2004050933A1 publication Critical patent/WO2004050933A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/009—Pearlite

Landscapes

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

Abstract

A steel for a mold for use in molding a plastic which has a chemical composition, in mass %: C: 0.25 to 0.45 %, Si: less than 0.3 %, Mn: 0.5 to 2 %, S: 0.01 to 0.05 %, sol. Al: 0.02 % or less and the balance: Fe and impurities, has a two phase metal structure composed of 15 to 30 area % of ferrite and the balanced amount of pearlite, and exhibits an austenite grain size defined in JIS G 0551 of 3 or more. The steel may further comprises Cr up to 0.5 % and/or V less than 0.2 %. The steel for a mold combines good machinability and high thermal conductivity and can be produced at a low cost.
PCT/JP2003/015303 2002-11-29 2003-11-28 Steel for mold for use in molding plastic Ceased WO2004050933A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002348314A JP4192579B2 (en) 2002-11-29 2002-11-29 Steel for plastic mold
JP2002-348314 2002-11-29

Publications (1)

Publication Number Publication Date
WO2004050933A1 true WO2004050933A1 (en) 2004-06-17

Family

ID=32462911

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/015303 Ceased WO2004050933A1 (en) 2002-11-29 2003-11-28 Steel for mold for use in molding plastic

Country Status (3)

Country Link
JP (1) JP4192579B2 (en)
CN (1) CN100360697C (en)
WO (1) WO2004050933A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105112794A (en) * 2015-08-25 2015-12-02 石家庄钢铁有限责任公司 Low-cost plastic mold steel and production method thereof
US10239245B2 (en) * 2016-02-01 2019-03-26 A. Finkl & Sons Co. Economical plastic tooling cores for mold and die sets
EP3348660A4 (en) * 2015-09-11 2019-03-27 Daido Steel Co.,Ltd. STEEL FOR MOLDS AND MOLDING TOOL

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4524494B2 (en) * 2005-04-11 2010-08-18 国立大学法人福井大学 Crystal structure inspection support device and support method for metal material
JP4589885B2 (en) * 2006-03-03 2010-12-01 住友金属工業株式会社 Crankshaft
EP1887096A1 (en) 2006-08-09 2008-02-13 Rovalma, S.A. Hot working steel
JP5213168B2 (en) * 2008-07-07 2013-06-19 株式会社日本製鋼所 Steel for plastic molding dies excellent in thermal conductivity and manufacturing method thereof
JP5515442B2 (en) 2009-06-16 2014-06-11 大同特殊鋼株式会社 Hot tool steel and steel products using the same
JP2011001572A (en) 2009-06-16 2011-01-06 Daido Steel Co Ltd Tool steel for hot work and steel product using the same
CN103014488B (en) * 2012-12-01 2015-07-15 滁州市成业机械制造有限公司 Die steel for alloy compression casting and processing method thereof
CN105177410B (en) * 2015-07-24 2017-03-15 成都三强轧辊股份有限公司 A kind of large-scale collars cold mould and its application and manufacturing process
CN105177429B (en) * 2015-10-20 2017-07-28 宁波德科精密模塑有限公司 A kind of plastic die steel and plastic shaping mould
CN107650321A (en) * 2016-07-25 2018-02-02 北京白菊汽车零部件有限公司 A kind of new type of safe automobile bumper injection molding process
CN109182909B (en) * 2018-10-12 2021-06-04 攀钢集团攀枝花钢铁研究院有限公司 Medium carbon steel for automobile steering system and production method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63286554A (en) * 1987-05-18 1988-11-24 Kobe Steel Ltd Steel for metal mold having superior machinability
US5785924A (en) * 1996-03-01 1998-07-28 Creusot Loire Industrie Steel useful for the manufacture of molds for the injection molding of plastic
JPH11199966A (en) * 1998-01-12 1999-07-27 Nippon Koshuha Steel Co Ltd Free cutting steel for plastic molding die excellent in roughness of finished face
JP2000303140A (en) * 1999-04-19 2000-10-31 Daido Steel Co Ltd Steel for plastic molds
JP2002012941A (en) * 2000-06-27 2002-01-15 Nippon Koshuha Steel Co Ltd Free cutting steel for plastic molding dice excellent in finished surface roughness
JP2003253383A (en) * 2002-02-27 2003-09-10 Daido Steel Co Ltd Steel for plastic molding dies

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136426A (en) * 1983-01-25 1984-08-06 Nippon Steel Corp Directly heat-treated austenite stainless steel wire material having excellent surface properties
JP3208960B2 (en) * 1993-10-20 2001-09-17 株式会社神戸製鋼所 High surface fatigue strength parts for machine structural use and their manufacturing method
JPH11158579A (en) * 1997-11-26 1999-06-15 Daido Steel Co Ltd Steel for plastic molding dies
JP2001294973A (en) * 2000-04-05 2001-10-26 Daido Steel Co Ltd Steel for plastic molds with excellent powder EDM

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63286554A (en) * 1987-05-18 1988-11-24 Kobe Steel Ltd Steel for metal mold having superior machinability
US5785924A (en) * 1996-03-01 1998-07-28 Creusot Loire Industrie Steel useful for the manufacture of molds for the injection molding of plastic
JPH11199966A (en) * 1998-01-12 1999-07-27 Nippon Koshuha Steel Co Ltd Free cutting steel for plastic molding die excellent in roughness of finished face
JP2000303140A (en) * 1999-04-19 2000-10-31 Daido Steel Co Ltd Steel for plastic molds
JP2002012941A (en) * 2000-06-27 2002-01-15 Nippon Koshuha Steel Co Ltd Free cutting steel for plastic molding dice excellent in finished surface roughness
JP2003253383A (en) * 2002-02-27 2003-09-10 Daido Steel Co Ltd Steel for plastic molding dies

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105112794A (en) * 2015-08-25 2015-12-02 石家庄钢铁有限责任公司 Low-cost plastic mold steel and production method thereof
EP3348660A4 (en) * 2015-09-11 2019-03-27 Daido Steel Co.,Ltd. STEEL FOR MOLDS AND MOLDING TOOL
US11141778B2 (en) 2015-09-11 2021-10-12 Daido Steel Co., Ltd. Steel for molds and molding tool
US10239245B2 (en) * 2016-02-01 2019-03-26 A. Finkl & Sons Co. Economical plastic tooling cores for mold and die sets

Also Published As

Publication number Publication date
JP2004183008A (en) 2004-07-02
CN100360697C (en) 2008-01-09
CN1717503A (en) 2006-01-04
JP4192579B2 (en) 2008-12-10

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