JP2006257467A - 超硬合金工具材料、およびその製造方法 - Google Patents
超硬合金工具材料、およびその製造方法 Download PDFInfo
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- JP2006257467A JP2006257467A JP2005074138A JP2005074138A JP2006257467A JP 2006257467 A JP2006257467 A JP 2006257467A JP 2005074138 A JP2005074138 A JP 2005074138A JP 2005074138 A JP2005074138 A JP 2005074138A JP 2006257467 A JP2006257467 A JP 2006257467A
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- powder
- cemented carbide
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- carbon nanotubes
- cobalt
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000007769 metal material Substances 0.000 title abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 27
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 27
- 238000005245 sintering Methods 0.000 claims abstract description 17
- 239000007791 liquid phase Substances 0.000 claims abstract description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 5
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 5
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 9
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 3
- 239000002109 single walled nanotube Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 14
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 10
- 239000000956 alloy Substances 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 238000001878 scanning electron micrograph Methods 0.000 description 6
- 229910009043 WC-Co Inorganic materials 0.000 description 5
- 239000011195 cermet Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000013001 point bending Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 239000002048 multi walled nanotube Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000009702 powder compression Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000011882 ultra-fine particle Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 238000001159 Fisher's combined probability test Methods 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000009704 powder extrusion Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
【解決手段】 炭化タングステン粉末85〜95重量%、コバルト粉末残部からなるものとした原料粉末に、カーボンナノチューブを0.01〜1.00重量%添加し、液相焼結して得られた抗折力が2700MPa以上であることを特徴とする炭化タングステン−コバルト系超硬合金工具材料。
【選択図】 なし
Description
WC−TiC−TaC−Co系超硬合金が用いられている。一方、結合相をNiとするWC−Ni系超硬合金は、Ni中へのWの固溶量が一定以上で磁性を失い、非強磁性となること、Crの添加により、さらに耐食性が向上する特徴を有し、WC−Ni−Cr系超硬合金も実用化されている。
H 2116による装置で測定した平均粒径のことである。これらの粉末およびカーボンナノチューブについては、市販の材料として入手できる。
WC−TaC−Co系超硬合金、WC−TiC−TaC−Co系超硬合金のようにWCの一部を他の硬質粒子に置換してもよい。
Claims (4)
- 原料粉末にカーボンナノチューブを0.01〜1.00重量%添加し、液相焼結して得られた抗折力が2700MPa以上であることを特徴とする炭化タングステン−コバルト系超硬合金工具材料。
- 原料粉末が、炭化タングステン粉末85〜95重量%、コバルト粉末残部からなるものとした、請求項1記載の炭化タングステン−コバルト系超硬合金工具材料。
- カーボンナノチューブが直径1〜2nm、長さ1〜2μm、ヤング率1000GPa以上の単層カーボンナノチューブであることを特徴とする請求項1記載の焼結超硬合金工具材料。
- 炭化タングステン粉末とコバルト粉末とに、全量に占める重量割合が0.01〜1.00重量%となるようにカーボンナノチューブを添加した粉末を、ボールミルで湿式混合して成形した後、不活性ガス雰囲気、または真空中で1200〜1500℃で液相焼結することを特徴とする請求項1記載の超硬合金工具材料の製造方法。
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JP2005074138A JP4403286B2 (ja) | 2005-03-15 | 2005-03-15 | 超硬合金工具材料、およびその製造方法 |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008127616A (ja) * | 2006-11-20 | 2008-06-05 | Starloy:Kk | 積層超硬チップ及びその製造方法 |
WO2008069300A1 (ja) * | 2006-12-07 | 2008-06-12 | Kyushu University, National University Corporation | カーボンナノチューブ複合体及びその製造方法 |
JP2009024214A (ja) * | 2007-07-19 | 2009-02-05 | Tungaloy Corp | 超硬合金およびその製造方法 |
CN102268619A (zh) * | 2011-06-03 | 2011-12-07 | 中南大学 | 碳纳米管增强金刚石复合片材料的制备方法 |
JP2013040396A (ja) * | 2011-08-19 | 2013-02-28 | Seiko Epson Corp | 超硬合金及びその製造方法 |
JP2013527317A (ja) * | 2010-04-15 | 2013-06-27 | コーニング インコーポレイテッド | 窒化物被覆を剥離する方法 |
KR101350768B1 (ko) | 2012-06-22 | 2014-01-14 | (재)대구기계부품연구원 | 비구면 렌즈 제작용 소결 초경합금 금형 |
CN103748309A (zh) * | 2011-08-24 | 2014-04-23 | 长年Tm公司 | 包括细长结构的孕镶钻孔工具 |
WO2014098370A1 (ko) * | 2012-12-21 | 2014-06-26 | 한국기계연구원 | 탄소나노튜브를 포함하는 초경합금의 제조방법, 이에 의해 제조된 초경합금 및 초경합금을 포함하여 이루어지는 초경 절삭공구 |
KR101789230B1 (ko) * | 2011-04-11 | 2017-11-20 | 경상대학교산학협력단 | 초경합금 구조물을 제작하는 분말 사출 성형 방법 및 그 시스템 |
CN107447154A (zh) * | 2017-07-06 | 2017-12-08 | 徐州市瑜擎工程机械有限公司 | 一种矿用工具硬质合金及其制备方法 |
CN110218926A (zh) * | 2019-07-10 | 2019-09-10 | 河源正信硬质合金有限公司 | 一种超粗晶WC-Co硬质合金制备方法 |
KR102103376B1 (ko) * | 2019-05-07 | 2020-04-24 | 한국기계연구원 | 초경합금 및 이의 제조방법 |
CN114752799A (zh) * | 2022-04-26 | 2022-07-15 | 江西理工大学 | CNTs增强WC-Co硬质合金材料及其制备方法 |
CN115612906A (zh) * | 2022-09-27 | 2023-01-17 | 株洲坤锐硬质合金有限公司 | 一种碳纳米管-氧化铝改性的硬质合金 |
-
2005
- 2005-03-15 JP JP2005074138A patent/JP4403286B2/ja active Active
Cited By (19)
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JP2008127616A (ja) * | 2006-11-20 | 2008-06-05 | Starloy:Kk | 積層超硬チップ及びその製造方法 |
US9267332B2 (en) | 2006-11-30 | 2016-02-23 | Longyear Tm, Inc. | Impregnated drilling tools including elongated structures |
WO2008069300A1 (ja) * | 2006-12-07 | 2008-06-12 | Kyushu University, National University Corporation | カーボンナノチューブ複合体及びその製造方法 |
JP2009024214A (ja) * | 2007-07-19 | 2009-02-05 | Tungaloy Corp | 超硬合金およびその製造方法 |
JP2013527317A (ja) * | 2010-04-15 | 2013-06-27 | コーニング インコーポレイテッド | 窒化物被覆を剥離する方法 |
US9903040B2 (en) | 2010-04-15 | 2018-02-27 | Corning Incorporated | Method for stripping nitride coatings |
KR101789230B1 (ko) * | 2011-04-11 | 2017-11-20 | 경상대학교산학협력단 | 초경합금 구조물을 제작하는 분말 사출 성형 방법 및 그 시스템 |
CN102268619A (zh) * | 2011-06-03 | 2011-12-07 | 中南大学 | 碳纳米管增强金刚石复合片材料的制备方法 |
JP2013040396A (ja) * | 2011-08-19 | 2013-02-28 | Seiko Epson Corp | 超硬合金及びその製造方法 |
CN103748309A (zh) * | 2011-08-24 | 2014-04-23 | 长年Tm公司 | 包括细长结构的孕镶钻孔工具 |
KR101350768B1 (ko) | 2012-06-22 | 2014-01-14 | (재)대구기계부품연구원 | 비구면 렌즈 제작용 소결 초경합금 금형 |
WO2014098370A1 (ko) * | 2012-12-21 | 2014-06-26 | 한국기계연구원 | 탄소나노튜브를 포함하는 초경합금의 제조방법, 이에 의해 제조된 초경합금 및 초경합금을 포함하여 이루어지는 초경 절삭공구 |
CN107447154A (zh) * | 2017-07-06 | 2017-12-08 | 徐州市瑜擎工程机械有限公司 | 一种矿用工具硬质合金及其制备方法 |
KR102103376B1 (ko) * | 2019-05-07 | 2020-04-24 | 한국기계연구원 | 초경합금 및 이의 제조방법 |
CN110218926A (zh) * | 2019-07-10 | 2019-09-10 | 河源正信硬质合金有限公司 | 一种超粗晶WC-Co硬质合金制备方法 |
CN110218926B (zh) * | 2019-07-10 | 2021-09-17 | 河源正信硬质合金有限公司 | 一种超粗晶WC-Co硬质合金制备方法 |
CN114752799A (zh) * | 2022-04-26 | 2022-07-15 | 江西理工大学 | CNTs增强WC-Co硬质合金材料及其制备方法 |
CN115612906A (zh) * | 2022-09-27 | 2023-01-17 | 株洲坤锐硬质合金有限公司 | 一种碳纳米管-氧化铝改性的硬质合金 |
CN115612906B (zh) * | 2022-09-27 | 2023-09-05 | 株洲坤锐硬质合金有限公司 | 一种碳纳米管-氧化铝改性的硬质合金 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |