MY179301A - Steel for high-specularity plastic die - Google Patents

Steel for high-specularity plastic die

Info

Publication number
MY179301A
MY179301A MYPI2016703226A MYPI2016703226A MY179301A MY 179301 A MY179301 A MY 179301A MY PI2016703226 A MYPI2016703226 A MY PI2016703226A MY PI2016703226 A MYPI2016703226 A MY PI2016703226A MY 179301 A MY179301 A MY 179301A
Authority
MY
Malaysia
Prior art keywords
steel
specularity
plastic die
material grains
regions
Prior art date
Application number
MYPI2016703226A
Inventor
Hiroyuki Yamamoto
Tsuyoshi Tonomura
Original Assignee
Nippon Koshuha Steel Co 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 Nippon Koshuha Steel Co Ltd filed Critical Nippon Koshuha Steel Co Ltd
Publication of MY179301A publication Critical patent/MY179301A/en

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
    • C22C38/24—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
    • 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

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 high-specularity plastic die is a steel material containing 0.20 to 0.50 mass% of C and 10.50 to 20.00 mass% of Cr. When carbide-dense regions in the steel material, the grain size of carbides constituting the dense regions being not less than 5 ?m by projected area diameter, the distance between carbides being no more than 30 ?m, and the area of the carbide-dense regions being no less than 1000 ?m2 are designated as material grains, the maximum length of the material grains is not more than 1000 ?m and the area ratio of the material grains is not more than 2.0%. Thus, specularity can be improved by regulating the size of material grains associated with the carbidedense regions.
MYPI2016703226A 2014-03-06 2014-05-09 Steel for high-specularity plastic die MY179301A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014044355A JP5705345B1 (en) 2014-03-06 2014-03-06 High mirror surface plastic mold steel

Publications (1)

Publication Number Publication Date
MY179301A true MY179301A (en) 2020-11-04

Family

ID=52985998

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2016703226A MY179301A (en) 2014-03-06 2014-05-09 Steel for high-specularity plastic die

Country Status (4)

Country Link
JP (1) JP5705345B1 (en)
CN (1) CN106460108B (en)
MY (1) MY179301A (en)
WO (1) WO2015132977A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115667563B (en) * 2020-06-15 2023-12-19 日铁不锈钢株式会社 Precipitation hardening martensitic stainless steel sheet excellent in fatigue resistance
JP7152582B1 (en) * 2021-11-09 2022-10-12 日本高周波鋼業株式会社 Mold steel with excellent mirror finish

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2580186B2 (en) * 1987-07-18 1997-02-12 関東特殊製鋼株式会社 Mold material for plastic injection molding
JP2001150122A (en) * 1999-11-25 2001-06-05 Hitachi Metals Ltd Manufacturing method of stock for cold/warm plastic working and its cold/warm plastic working method
CN100402690C (en) * 2005-04-18 2008-07-16 宝钢集团上海五钢有限公司 Preparation and production method of 4Cr16Mo mold steel mirror surface large module
JP2007009321A (en) * 2005-06-02 2007-01-18 Daido Steel Co Ltd Steel for plastic molds
JP4952888B2 (en) * 2006-04-07 2012-06-13 大同特殊鋼株式会社 Martensite steel
FR2920784B1 (en) * 2007-09-10 2010-12-10 Aubert & Duval Sa MARTENSITIC STAINLESS STEEL, PROCESS FOR MANUFACTURING WORKPIECES PRODUCED IN THIS STEEL AND PARTS PRODUCED THEREBY
JP5186878B2 (en) * 2007-10-18 2013-04-24 大同特殊鋼株式会社 Steel for plastic molds and plastic molds

Also Published As

Publication number Publication date
WO2015132977A1 (en) 2015-09-11
JP5705345B1 (en) 2015-04-22
JP2015168850A (en) 2015-09-28
CN106460108B (en) 2018-04-27
CN106460108A (en) 2017-02-22

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