IN2014MN00820A - - Google Patents

Info

Publication number
IN2014MN00820A
IN2014MN00820A IN820MUN2014A IN2014MN00820A IN 2014MN00820 A IN2014MN00820 A IN 2014MN00820A IN 820MUN2014 A IN820MUN2014 A IN 820MUN2014A IN 2014MN00820 A IN2014MN00820 A IN 2014MN00820A
Authority
IN
India
Prior art keywords
scale layer
substrate steel
tool
piercing mill
scale
Prior art date
Application number
Inventor
Kenji Ichino
Seiji Ozaki
Tetsuo Mochida
Original Assignee
Jfe Steel 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
Application filed by Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of IN2014MN00820A publication Critical patent/IN2014MN00820A/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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • 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
    • C21D1/84—Controlled slow cooling
    • 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
    • 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
    • C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/40—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
    • C22C38/48—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/04—Cooling or lubricating mandrels during operation
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

A tool for a piercing mill with excellent wear resistance and a method for producing the tool for a piercing mill are provided. A scale layer is formed in a surface layer of a substrate steel having a composition containing, on a mass% basis, C: 0.05% to 0.5%, Si: 0.1% to 1.5%, Mn: 0.1% to 1.5%, Cr: 0.1% to 1.5%, Mo: 0.6% to 3.5%, W: 0.5% to 3.5%, and Nb: 0.1% to 1.0% and further containing Co: 0.5% to 3.5% and Ni: 0.5% to 4.0% so as to satisfy 1.0 < Ni + Co < 4.0. The scale layer includes a net structure scale layer that is formed on a substrate steel side, has a thickness of 10 to 200 μm in a depth direction, and is complicatedly intertwined with a metal. A microstructure on the substrate steel side in a range of at least 300 urn in the depth direction from an interface between the net structure scale layer and the substrate steel contains a ferrite phase at an area fraction of 50% or more, the ferrite phase containing 400 /mm2 or more of ferrite grains having a maximum length of 1 to 60 μm. Such a microstructure can be formed by performing a scale-forming heat treatment in which, after heating, cooling to at least 700°C is conducted with first rapid cooling and second slow cooling. Thus, the adhesiveness of the scale layer is improved and the lifetime of the tool for a piercing mill is increased. Figure 1 is the representative figure.
IN820MUN2014 2011-11-30 2012-11-28 IN2014MN00820A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011261307A JP5321673B2 (en) 2011-11-30 2011-11-30 Drilling and rolling tool
PCT/JP2012/007617 WO2013080528A1 (en) 2011-11-30 2012-11-28 Tool for piercing mill

Publications (1)

Publication Number Publication Date
IN2014MN00820A true IN2014MN00820A (en) 2015-04-17

Family

ID=48535022

Family Applications (1)

Application Number Title Priority Date Filing Date
IN820MUN2014 IN2014MN00820A (en) 2011-11-30 2012-11-28

Country Status (8)

Country Link
US (1) US9194031B2 (en)
EP (1) EP2786813B1 (en)
JP (1) JP5321673B2 (en)
CN (1) CN103974787B (en)
BR (1) BR112014013153B1 (en)
IN (1) IN2014MN00820A (en)
MX (1) MX2014006120A (en)
WO (1) WO2013080528A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103741062B (en) * 2013-12-23 2016-11-09 马鞍山市盈天钢业有限公司 A kind of seamless steel tube material for nuclear power and preparation method thereof
CN103741074B (en) * 2013-12-23 2015-12-09 马鞍山市盈天钢业有限公司 Effective weldless steel tube material of a kind of automobile half shaft and preparation method thereof
CN104099531B (en) * 2014-07-31 2016-08-24 宁国市宁武耐磨材料有限公司 A kind of high hardness wear-resisting ball and preparation method thereof
JP6385195B2 (en) * 2014-08-19 2018-09-05 新報国製鉄株式会社 Piercer plug for seamless pipe manufacturing
CN109487170B (en) * 2017-09-13 2020-11-17 宝山钢铁股份有限公司 Plug with long perforation life and manufacturing method thereof

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599154A (en) 1982-07-05 1984-01-18 Kawasaki Steel Corp Material for tool for manufacturing seamless steel pipe
JPS6369948A (en) 1986-09-09 1988-03-30 Kawasaki Steel Corp Tool material for manufacturing seamless steel pipe
JPH0890015A (en) * 1994-09-26 1996-04-09 Kawasaki Steel Corp Cooling method of plug for rolling seamless steel tube
JPH08193241A (en) 1994-09-26 1996-07-30 Kawasaki Steel Corp Hot working tool and its production
JPH105821A (en) 1996-06-14 1998-01-13 Sumitomo Metal Ind Ltd Heat treating method of plug for manufacturing seamless steel tube and manufacture of seamless steel tube
JP3292122B2 (en) 1997-12-19 2002-06-17 日本鋼管株式会社 Seamless steel pipe manufacturing tools
JP4258580B2 (en) * 1998-12-25 2009-04-30 住友金属工業株式会社 Seamless steel pipe manufacturing tool and method for manufacturing the same
JP4388676B2 (en) * 2000-07-28 2009-12-24 日本鋳造株式会社 Seamless pipe manufacturing tool and method for manufacturing the same
JP4165058B2 (en) * 2001-07-25 2008-10-15 Ｊｆｅスチール株式会社 Drilling and rolling tool and manufacturing method thereof
JP3797192B2 (en) * 2001-10-25 2006-07-12 Ｊｆｅスチール株式会社 Drilling and rolling tool
CN101942610A (en) * 2010-08-05 2011-01-12 黄贞益 Piercing plug for hot-rolled seamless steel pipe and processing technology thereof

Also Published As

Publication number Publication date
EP2786813A1 (en) 2014-10-08
BR112014013153B1 (en) 2022-06-14
JP2013112869A (en) 2013-06-10
US20150176107A1 (en) 2015-06-25
JP5321673B2 (en) 2013-10-23
CN103974787A (en) 2014-08-06
WO2013080528A1 (en) 2013-06-06
EP2786813B1 (en) 2016-05-18
EP2786813A4 (en) 2015-05-27
MX2014006120A (en) 2014-08-27
US9194031B2 (en) 2015-11-24
BR112014013153A2 (en) 2017-06-13
CN103974787B (en) 2015-10-21

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