WO2023175720A1 - 超硬合金 - Google Patents

超硬合金 Download PDF

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Publication number
WO2023175720A1
WO2023175720A1 PCT/JP2022/011622 JP2022011622W WO2023175720A1 WO 2023175720 A1 WO2023175720 A1 WO 2023175720A1 JP 2022011622 W JP2022011622 W JP 2022011622W WO 2023175720 A1 WO2023175720 A1 WO 2023175720A1
Authority
WO
WIPO (PCT)
Prior art keywords
cemented carbide
region
atoms
metal element
less
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/JP2022/011622
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
保樹 城戸
克己 岡村
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric 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 Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to US18/282,999 priority Critical patent/US20250034682A1/en
Priority to CN202280020821.4A priority patent/CN117083406B/zh
Priority to EP22930135.3A priority patent/EP4296390B1/en
Priority to JP2022560483A priority patent/JP7311826B1/ja
Priority to PCT/JP2022/011622 priority patent/WO2023175720A1/ja
Priority to TW111149224A priority patent/TW202400818A/zh
Publication of WO2023175720A1 publication Critical patent/WO2023175720A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing

Definitions

  • the content of other phases in the cemented carbide is determined from the entire cemented carbide (100% by volume) using the above procedure. It can be obtained by reducing the content (volume %) of tungsten carbide particles and the content (volume %) of the binder phase.
  • the surface S of the tungsten carbide particles is arbitrarily selected.
  • the method for identifying the surface S of the tungsten carbide particles is as follows. That is, an elemental mapping analysis using EDX (Energy Dispersive x-ray Spectroscopy) is performed on the first image to analyze the distribution of cobalt. In the obtained elemental mapping image, a line indicating a region with a high cobalt concentration corresponds to the surface S of the tungsten carbide particle.
  • EDX Electronicgy Dispersive x-ray Spectroscopy
  • the molding step is a step of molding the mixed powder obtained in the mixing step into a shape for a rotary tool (for example, a round bar shape) to obtain a molded body.
  • the molding method and molding conditions in the molding step are not particularly limited as long as they may be general methods and conditions.
  • the ratio R2 of the number of atoms of the first metal element to the total number of atoms of the metal element and the number of atoms of the tungsten element is 1.30 times or more, and the R2 is 2.0% or more and 10.0%.
  • the inventors of the present invention have newly discovered as a result of their extensive studies that it is possible to obtain a cemented carbide having the following properties.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Carbon And Carbon Compounds (AREA)
PCT/JP2022/011622 2022-03-15 2022-03-15 超硬合金 Ceased WO2023175720A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US18/282,999 US20250034682A1 (en) 2022-03-15 2022-03-15 Cemented carbide
CN202280020821.4A CN117083406B (zh) 2022-03-15 2022-03-15 硬质合金
EP22930135.3A EP4296390B1 (en) 2022-03-15 2022-03-15 Cemented carbide
JP2022560483A JP7311826B1 (ja) 2022-03-15 2022-03-15 超硬合金
PCT/JP2022/011622 WO2023175720A1 (ja) 2022-03-15 2022-03-15 超硬合金
TW111149224A TW202400818A (zh) 2022-03-15 2022-12-21 超硬合金

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/011622 WO2023175720A1 (ja) 2022-03-15 2022-03-15 超硬合金

Publications (1)

Publication Number Publication Date
WO2023175720A1 true WO2023175720A1 (ja) 2023-09-21

Family

ID=87201082

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/011622 Ceased WO2023175720A1 (ja) 2022-03-15 2022-03-15 超硬合金

Country Status (6)

Country Link
US (1) US20250034682A1 (https=)
EP (1) EP4296390B1 (https=)
JP (1) JP7311826B1 (https=)
CN (1) CN117083406B (https=)
TW (1) TW202400818A (https=)
WO (1) WO2023175720A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12480187B2 (en) 2023-02-07 2025-11-25 Sumitomo Electric Industries, Ltd. Cemented carbide and cutting tool using the same
EP4527962A4 (en) 2023-07-28 2025-11-19 Sumitomo Electric Industries CEMENTED CARBIDE AND CUTTING TOOL
WO2025027678A1 (ja) * 2023-07-28 2025-02-06 住友電気工業株式会社 超硬合金および切削工具

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5166103A (en) * 1991-08-13 1992-11-24 Vladimir Krstic Method of making monotunsten carbide and mixtures of monotungsten carbide-titanium carbide powders
JP2000512688A (ja) * 1996-06-04 2000-09-26 オーエムジー アメリカズ，インコーポレイテッド 金属炭化物―ｖｉｉｉ族金属粉末およびその製造法
JP2005068515A (ja) * 2003-08-26 2005-03-17 Hitachi Tool Engineering Ltd 微粒超硬合金
KR20120086457A (ko) * 2011-01-26 2012-08-03 서울대학교산학협력단 완전 고용체 초경 분말, 판상 탄화물을 보유한 초경 소결체, 코팅초경 및 이들의 제조 방법
JP2016098393A (ja) 2014-11-20 2016-05-30 日本特殊合金株式会社 超硬合金
JP2021110010A (ja) 2020-01-14 2021-08-02 日本特殊合金株式会社 超微粒超硬合金，およびこれを用いた切断用もしくは切削用工具または耐摩耗用工具

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024902A (en) * 1975-05-16 1977-05-24 Baum Charles S Method of forming metal tungsten carbide composites
JP2626866B2 (ja) * 1993-01-19 1997-07-02 東京タングステン株式会社 超硬合金及びその製造方法
US7776256B2 (en) * 2005-11-10 2010-08-17 Baker Huges Incorporated Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies
AT14442U1 (de) * 2015-01-23 2015-11-15 Ceratizit Austria Gmbh Hartmetall-Cermet-Verbundwerkstoff und Verfahren zu dessen Herstellung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5166103A (en) * 1991-08-13 1992-11-24 Vladimir Krstic Method of making monotunsten carbide and mixtures of monotungsten carbide-titanium carbide powders
JP2000512688A (ja) * 1996-06-04 2000-09-26 オーエムジー アメリカズ，インコーポレイテッド 金属炭化物―ｖｉｉｉ族金属粉末およびその製造法
JP2005068515A (ja) * 2003-08-26 2005-03-17 Hitachi Tool Engineering Ltd 微粒超硬合金
KR20120086457A (ko) * 2011-01-26 2012-08-03 서울대학교산학협력단 완전 고용체 초경 분말, 판상 탄화물을 보유한 초경 소결체, 코팅초경 및 이들의 제조 방법
JP2016098393A (ja) 2014-11-20 2016-05-30 日本特殊合金株式会社 超硬合金
JP2021110010A (ja) 2020-01-14 2021-08-02 日本特殊合金株式会社 超微粒超硬合金，およびこれを用いた切断用もしくは切削用工具または耐摩耗用工具

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4296390A4

Also Published As

Publication number Publication date
JP7311826B1 (ja) 2023-07-20
EP4296390B1 (en) 2025-09-24
TW202400818A (zh) 2024-01-01
CN117083406A (zh) 2023-11-17
JPWO2023175720A1 (https=) 2023-09-21
EP4296390A4 (en) 2024-04-17
CN117083406B (zh) 2025-11-11
EP4296390A1 (en) 2023-12-27
US20250034682A1 (en) 2025-01-30

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