JP7385751B2 - 炭化タングステン系硬質金属材料 - Google Patents
炭化タングステン系硬質金属材料 Download PDFInfo
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- 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
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- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
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- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/002—Tools other than cutting tools
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- 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
- B22F2207/00—Aspects of the compositions, gradients
- B22F2207/01—Composition gradients
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- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/15—Nickel or cobalt
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- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/20—Refractory metals
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- B22F2302/10—Carbide
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- B22F2304/00—Physical aspects of the powder
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- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
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- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/28—Details of hard metal, i.e. cemented carbide
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- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/04—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
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- 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
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- Cutting Tools, Boring Holders, And Turrets (AREA)
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Description
HV10=2550-100×重量%(Co+Ni)±150
の範囲にある。
KIC=6.8+(1/3)×重量%(Co+Ni)±0.5
の範囲にあるとよく、好ましくは、
KIC=6.8+(1/3)×重量%(Co+Ni)±0.3
の範囲にあるとよい。
BBF=2150+(2500/6)×重量%(Co+Ni)±500
の範囲にあるとよく、好ましくは、
BBF=2150+(2500/6)×重量%(Co+Ni)±300
の範囲にあるとよい。
以下ではまず、炭化タングステン系硬質金属材料の実施形態について、一般的に説明する。
比較例として、上述した粉末冶金方法により、以下の組成:2.25重量%Co;0.75重量%Ni;0.35重量%Cr(出発材料として0.4重量%Cr3C2に相当);0.047重量%のMo(出発材料として0.05重量%Mo2Cに相当)、残部WCおよび不可避的不純物;の炭化タングステン系硬質金属材料を、製造した。したがって、WCの含有量は、約96.55重量%であった。この硬質金属材料の微細組織の光学顕微鏡像を、図6に示す。
上述の粉末冶金製造方法により、以下の組成:2.7重量%Co;0.9重量%Ni;0.45重量%Cr(出発材料として0.52重量%Cr3C2に相当);0.047重量%Mo(出発材料として0.05重量%Mo2Cに相当)、ならびに0.094重量%Ta(出発材料としての0.1重量%TaCに相当)、残部WCおよび不可避的不純物:の炭化タングステン系硬質金属材料を製造した。したがって、WCの含有量は、約95.73重量%であった。Co+Ni含有量は3.6重量%であり、Co/(Co+Ni)比は0.75、Cr/(Co+Ni)比は0.125、Me/(Co+Ni)比は0.026であり、この実施例1では、Me=Taであった。この硬質金属材料の微細組織の光学顕微鏡像を、図7に示す。
炭化タングステン系硬質金属材料を、上述の粉末冶金製造方法により、以下の組成:3.15重量%Co;1.05重量%Ni;0.83重量%Cr(出発材料として0.96重量%Cr3C2に相当);0.132重量%Mo(出発材料として0.14重量%Mo2Cに相当);0.188重量%Ta(出発材料として0.2重量%TaCに相当);残部WCおよび不可避的不純物;で製造した。したがって、WCの割合は、約94.50重量%であった。Co+Ni含有量は4.2重量%であり、Co/(Co+Ni)比は0.75であり、Cr/(Co+Ni)比は0.198であり、Me/(Co+Ni)比は0.045であり、この実施例2でも、Me=Taであった。硬質金属材料の光学顕微鏡像を、図8に示す。
炭化タングステン系硬質金属材料を、上述の粉末冶金製造方法において以下の組成:2.7重量%Co;0.9重量%Ni;0.45重量%Cr(出発材料として0.52重量%Cr3C2に相当);0.094重量%Mo(出発材料として0.1重量%Mo2Cに相当)、ならびに0.177重量%Nb(出発材料として0.2重量%NbCに相当)、残部WCおよび不可避的不純物;で製造した。したがって、WCの含有量は、約95.58重量%であった。また、この実施例3では、Me=Nbである。硬質金属材料の光学顕微鏡像を、図9に示す。
炭化タングステン系硬質金属材料を、上述した粉末冶金製造方法によって、以下の組成:2.7重量%Co;0.9重量%Ni;0.45重量%Cr(出発材料として0.52重量%Cr3C2に相当);0.094重量%Mo(出発材料として0.10重量%Mo2Cに相当)、0.113重量%Ta(出発材料として0.2重量%(Ta,Nb)Cに相当)、ならびに0.071重量%Nb(出発材料として0.2重量%の(Ta,Nb)Cに相当)、残部WCおよび不可避的不純物;で製造した。したがって、WCの含有量は、約95.58重量%であった。Co+Ni含有量は3.6重量%であり、Co/(Co+Ni)比は0.75であり、Cr/(Co+Ni)比は0.125であり、Me/(Co+Ni)率は0.051であり、この実施例4では、Me=Ta+Nbであった。この硬質金属材料の組織の光学顕微鏡像を、図10に示す。
Claims (14)
- 平均結晶粒径が0.1~1.3μmの炭化タングステンを含み、
92~98.5重量%の前記炭化タングステン、
1.0~5.0重量%の(Co+Ni)(ただし、Co/(Co+Ni)比は、重量%で、0.4≦Co/(Co+Ni)≦0.95である)、
0.1~1.0重量%のCr(ただし、(Co+Ni)に対するCrの比は、重量%で、0.05≦Cr/(Co+Ni)≦0.20である)、
0.01~0.3重量%のMo、
0.02~0.45重量%のMe(ただし、Me=Ta、Nb、Hf、およびTiからなる群から選択される1以上の元素であり、0.01≦Me/(Co+Ni)≦0.13である)、
を含有する、炭化タングステン系硬質金属材料。 - 前記炭化タングステンの平均結晶粒径は、0.1~0.8μmである、請求項1に記載の炭化タングステン系硬質金属材料。
- 0.6≦Co/(Co+Ni)≦0.9である、請求項1または2に記載の炭化タングステン系硬質金属材料。
- 0.05≦Cr/(Co+Ni)≦0.15である、請求項1~3のいずれか1項に記載の炭化タングステン系硬質金属材料。
- Crに対するMoの比は、重量%で、Mo/Cr<0.5を満たす、請求項1~4のいずれか1項に記載の炭化タングステン系硬質金属材料。
- 0.02≦Me/(Co+Ni)≦0.08である、請求項1~5のいずれか1項に記載の炭化タングステン系硬質金属材料。
- Crに対するMeの比が、重量%で、Me/Cr<0.65を満たす、請求項1~6のいずれか1項に記載の炭化タングステン系硬質金属材料。
- 硬度HV10は、式:
HV10=2550-100×重量%(Co+Ni)±150;
で表される範囲にある、請求項1~7のいずれか1項に記載の炭化タングステン系硬質金属材料。 - 破壊靭性KICは、MPa・m1/2単位で、
KIC=6.8+(1/3)×重量%(Co+Ni)±0.5
で表される範囲にある、請求項1~8のいずれか1項に記載の炭化タングステン系硬質金属材料。 - 曲げ破壊強度BBFは、MPa単位で、
BBF=2150+(2500/6)×重量%(Co+Ni)±500
で表される範囲にある、請求項1~9のいずれか1項に記載の炭化タングステン系硬質金属材料。 - 木材加工工具または成形工具のための、請求項1~10のいずれか1項に記載の炭化タングステン系硬質金属材料の使用。
- 請求項1~10のいずれか1項に記載の炭化タングステン系硬質金属材料から形成された加工部を有する、木材加工工具。
- 請求項1~10のいずれか1項に記載の炭化タングステン系硬質金属材料から形成された加工部を有する、成形工具。
- 前記成形工具は、冷間成形用の工具である、請求項13に記載の成形工具。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19210812.4A EP3825430A1 (de) | 2019-11-22 | 2019-11-22 | Wolframkarbid-basierter hartmetallwerkstoff |
| EP19210812.4 | 2019-11-22 | ||
| PCT/EP2020/078715 WO2021099029A1 (de) | 2019-11-22 | 2020-10-13 | Wolframkarbid-basierter hartmetallwerkstoff |
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|---|---|
| JP2023503854A JP2023503854A (ja) | 2023-02-01 |
| JP7385751B2 true JP7385751B2 (ja) | 2023-11-22 |
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| JP2022528070A Active JP7385751B2 (ja) | 2019-11-22 | 2020-10-13 | 炭化タングステン系硬質金属材料 |
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| Country | Link |
|---|---|
| US (1) | US12565696B2 (ja) |
| EP (2) | EP3825430A1 (ja) |
| JP (1) | JP7385751B2 (ja) |
| KR (1) | KR102849688B1 (ja) |
| CN (1) | CN112831705A (ja) |
| WO (1) | WO2021099029A1 (ja) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017179474A (ja) | 2016-03-30 | 2017-10-05 | 三菱マテリアル株式会社 | 非金属系材料を加工するための工具に用いる超硬合金 |
| JP2018070987A (ja) | 2016-11-04 | 2018-05-10 | 住友電気工業株式会社 | 硬質材料および摩擦撹拌接合用ツール |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9100227D0 (sv) * | 1991-01-25 | 1991-01-25 | Sandvik Ab | Corrosion resistant cemented carbide |
| US5305840A (en) * | 1992-09-14 | 1994-04-26 | Smith International, Inc. | Rock bit with cobalt alloy cemented tungsten carbide inserts |
| JP3353522B2 (ja) | 1995-02-09 | 2002-12-03 | 住友電気工業株式会社 | 木質系硬質材料を加工する工具のための超硬合金 |
| SE512161C2 (sv) * | 1998-06-30 | 2000-02-07 | Sandvik Ab | Hårdmetall och användning av denna vid olje- och gasutvinning |
| SE9903898D0 (sv) | 1999-10-28 | 1999-10-28 | Sandvik Ab | Cemented carbide tool for wood working |
| SE518890C2 (sv) * | 2000-09-27 | 2002-12-03 | Sandvik Ab | Hårdmetallverktyg för kallbearbetningsoperationer |
| SE523821C2 (sv) | 2002-10-25 | 2004-05-18 | Sandvik Ab | Hårdmetall för olje- och gastillämpningar |
| JP3762777B1 (ja) * | 2004-10-19 | 2006-04-05 | 住友電気工業株式会社 | 超硬合金 |
| JP5902613B2 (ja) * | 2009-04-27 | 2016-04-13 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | 超硬合金工具 |
| GB0919857D0 (en) * | 2009-11-13 | 2009-12-30 | Element Six Holding Gmbh | Near-nano cemented carbides and process for production thereof |
| CN102534340B (zh) * | 2012-01-13 | 2013-10-23 | 四川大学 | 基于多元复合碳氮化钛固溶体的含氮硬质合金及制备方法 |
| JP2013237120A (ja) * | 2012-05-15 | 2013-11-28 | Mitsubishi Materials Corp | 耐欠損性にすぐれたwc基超硬合金製切削工具 |
| JP6227517B2 (ja) * | 2014-11-20 | 2017-11-08 | 日本特殊合金株式会社 | 超硬合金 |
| CN106623912B (zh) * | 2016-12-14 | 2019-09-24 | 单麒铭 | 一种WC-Co硬质合金油田喷嘴的制备方法 |
| CN106399796B (zh) * | 2016-12-15 | 2018-05-18 | 浙江鸿峰硬质合金有限公司 | 一种硬质合金及其制备方法和合金刀头 |
| CN110023522A (zh) * | 2016-12-20 | 2019-07-16 | 山特维克知识产权股份有限公司 | 切削刀具 |
| AT16111U1 (de) * | 2017-11-15 | 2019-01-15 | Ceratizit Luxembourg S A R L | Schneidwerkzeug |
| GB201820628D0 (en) * | 2018-12-18 | 2019-01-30 | Sandvik Hyperion AB | Cemented carbide for high demand applications |
-
2019
- 2019-11-22 EP EP19210812.4A patent/EP3825430A1/de not_active Withdrawn
-
2020
- 2020-03-17 CN CN202010186026.5A patent/CN112831705A/zh active Pending
- 2020-10-13 JP JP2022528070A patent/JP7385751B2/ja active Active
- 2020-10-13 EP EP20789147.4A patent/EP4061974A1/de active Pending
- 2020-10-13 WO PCT/EP2020/078715 patent/WO2021099029A1/de not_active Ceased
- 2020-10-13 KR KR1020227015806A patent/KR102849688B1/ko active Active
- 2020-10-13 US US17/778,511 patent/US12565696B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017179474A (ja) | 2016-03-30 | 2017-10-05 | 三菱マテリアル株式会社 | 非金属系材料を加工するための工具に用いる超硬合金 |
| JP2018070987A (ja) | 2016-11-04 | 2018-05-10 | 住友電気工業株式会社 | 硬質材料および摩擦撹拌接合用ツール |
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| Publication number | Publication date |
|---|---|
| US20220411904A1 (en) | 2022-12-29 |
| BR112022007928A2 (pt) | 2022-07-12 |
| KR20220102136A (ko) | 2022-07-19 |
| EP3825430A1 (de) | 2021-05-26 |
| CN112831705A (zh) | 2021-05-25 |
| US12565696B2 (en) | 2026-03-03 |
| EP4061974A1 (de) | 2022-09-28 |
| KR102849688B1 (ko) | 2025-08-22 |
| JP2023503854A (ja) | 2023-02-01 |
| WO2021099029A1 (de) | 2021-05-27 |
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