JP2004503675A - 複合ダイヤモンド圧縮体 - Google Patents
複合ダイヤモンド圧縮体 Download PDFInfo
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- JP2004503675A JP2004503675A JP2002510220A JP2002510220A JP2004503675A JP 2004503675 A JP2004503675 A JP 2004503675A JP 2002510220 A JP2002510220 A JP 2002510220A JP 2002510220 A JP2002510220 A JP 2002510220A JP 2004503675 A JP2004503675 A JP 2004503675A
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- Prior art keywords
- diamond compact
- nickel
- compact
- cobalt
- composite
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
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- 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
- 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
-
- 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
- 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
- B22F7/008—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 characterised by the composition
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- 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
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/81—Tool having crystalline cutting edge
-
- 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
- Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
-
- 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
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
- Y10T83/041—By heating or cooling
- Y10T83/0414—At localized area [e.g., line of separation]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
- Carbon And Carbon Compounds (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Drilling Tools (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Powder Metallurgy (AREA)
- Earth Drilling (AREA)
Abstract
Description
(発明の背景)
本発明は、複合ダイヤモンド圧縮体に関する。
【0002】
多結晶性ダイヤモンドまたはPCDとしても知られているダイヤモンド圧縮体は当該技術分野で周知であり、切断、摩砕、掘削、および他の研磨作業に広範囲に用いられている。ダイヤモンド圧縮体は性状が多結晶性であり、高含量のダイヤモンドを含んでいる。ダイヤモンド圧縮体は第二または接着相を用いずに生産することができるが、一般的にはこのような相を含んでいる。このような相が存在するときには、この相の主要成分は一般的にはコバルト、ニッケルまたは鉄、またはそれらの組合せのようなダイヤモンド触媒/溶媒である。
【0003】
ダイヤモンド圧縮体は、高温、高圧条件、すなわちダイヤモンドの合成に用いるのに類似した条件下で製造される。
【0004】
ダイヤモンド圧縮体は砕けやすく、従って、使用に当たっては、それらは基材に接着しており、この基材は一般的には接合カーバイド基材である。ダイヤモンド圧縮体の基材への接着は、一般に圧縮体自身の製造中に起こる。基材に接着したダイヤモンド圧縮体は、複合ダイヤモンド圧縮体として知られている。
【0005】
複合ダイヤモンド圧縮体は、様々な用途に用いられ、特に掘削用途に用いられる。このような複合ダイヤモンド圧縮体の接着相は、一般にコバルトである。コバルトは、約400℃を上回る温度で相変換を受ける。これにより、このような圧縮体のカッティングエッジにおける温度が約700℃以上となる掘削用途において複合ダイヤモンド圧縮体を使用することに問題が生じる。これらの温度でのコバルトの相変換により、掘削用途中に複合圧縮体の熱疲労クレーズクラッキングおよびスネークスキンクラッキングを生じる。
【0006】
(発明の概要)
本発明によれば、複合ダイヤモンド圧縮体は接合カーバイド基材に接着したダイヤモンド圧縮体を含んでなり、ダイヤモンド圧縮体は圧縮体の少なくとも80体積%の量で存在するダイヤモンド結晶の多結晶性接着マスと、本質的にニッケル/コバルト合金からなる第二相とを含んでなり、接合カーバイド基材は本質的にニッケル/コバルト合金からなる接着剤によって凝集性形態に接着したカーバイド粒子のマスを含んでなる。
【0007】
更に本発明によれば、圧縮体に設けられたカッティングエッジで500℃を上回る温度が見られるような研磨用途における上記複合ダイヤモンド圧縮体の使用が提供される。
【0008】
(態様の説明)
本発明の複合ダイヤモンド圧縮体は、ダイヤモンド圧縮体および接合カーバイド基材に含まれている合金を特徴とする。両層の合金は、本質的にニッケル/コバルト合金からなっている。これは、合金の成分が本質的にニッケルとコバルトからなり、他の成分は痕跡または微量でしか含まれていないことを意味する。この性状の複合ダイヤモンド圧縮体は、従来技術による複合ダイヤモンド圧縮体よりも離層による破損の傾向が著しく低いことが分かっている。複合研磨圧縮体をきり先(ドリルビット)にロウ付けすると、ブレーズ離層が起こる。用いられる典型的なブレーズ合金は、亜鉛含有合金である。基材におけるコバルト接着剤の亜鉛腐食並びに基材における残余ストレスにより、ビットブレージング工程中に離層クラッキングが引き起こされる。更に、ニッケルが含まれていることにより、圧縮体の耐熱疲労性が著しく増加し、掘削のような約700℃以上の温度が見られる作業中にスネークスキンクラッキングが起こる傾向が減少する。
【0009】
従って、本発明は、圧縮体のカッティングエッジで500℃を上回る温度が見られる研磨用途での複合研磨圧縮体の使用も提供する。カッティングエッジは、一般にダイヤモンド圧縮体の外周刃によって提供される。研磨用途としては、切断、掘削、摩砕などが挙げられる。
【0010】
合金におけるニッケル対コバルトの質量比は、一般には75:25−20:80の範囲であり、好ましくは30:70−45:55の範囲である。合金の典型的な例は、ニッケル対コバルトの質量比が40:60の質量比を含むものである。基材のカーバイド粒子は、タングステンカーバイド粒子、タンタルカーバイド粒子、チタンカーバイド粒子、モリブデンカーバイド粒子またはこれら粒子の2種類以上を含む混合物でよい。
【0011】
本発明の複合ダイヤモンド圧縮体は、当該技術分野で知られている方法によって作製することができる。更に詳細には、ダイヤモンド粒子のマスを接合カーバイド基材の表面に置いて未接着集成体を形成し、これを次にダイヤモンド合成条件下に置くことができる。基材からの合金がダイヤモンドマスに浸透して、基材に接着するダイヤモンド圧縮体を形成する。本発明の好ましい態様では、接合カーバイド基材に陥凹部が形成され、ダイヤモンド粒子のマスがこの陥凹部に置かれる。ダイヤモンド圧縮体を形成した後、基材の側部を取り除いてダイヤモンド圧縮体を露出させることができる。ダイヤモンド合成条件は、典型的には圧力が40−70キロバール(4−7GPa)であり、温度が1300−1600℃である。これらの条件が、典型的には20−60分間保持される。
【0012】
次に、本発明の一態様を説明する。円筒状の接合カーバイド基材を提供した。この基材は、ニッケル/コバルト合金によって凝集性形態に接着したタングステンカーバイド粒子のマスを含んでなった。合金におけるニッケル対コバルトの質量比は、40:60であった。
【0013】
陥凹部を、基材の一方の平坦な末端表面に形成させた。ダイヤモンド粒子のマスを陥凹部に置いて、陥凹部を満たした。この未接着集成体を通常の高温/高圧装置の反応ゾーンに置き、約1500℃の温度および約55キロバール(5.5GPa)の圧力を加えた。これらの条件を、ダイヤモンド粒子のダイヤモンド圧縮体を生成するのに十分な期間保持した。圧縮体の形成の際に、基材からのニッケル/コバルト合金がダイヤモンドマスに浸透し、ダイヤモンド圧縮体の第二相を形成した。ダイヤモンド圧縮体を接合カーバイド本体に接着させた。
【0014】
生成する生成物を装置から取り出し、接合カーバイド基材の両側部を取り除いた。生成する生成物は添付図面によって示されており、界面14に沿って接合カーバイド基材10に接着したダイヤモンド圧縮体12からなっていた。ダイヤモンド圧縮体12は本質的にニッケル/コバルト合金からなる第二相を有し、接合カーバイド基材10は本質的に同じ合金からなる接着剤を有していた。ダイヤモンド圧縮体12は、上部作業表面16と外周刃18を有している。
【0015】
図面によって示された複合研磨圧縮体は、ドリルインサートとして用いることができる。使用においては、カッティングエッジ18は掘削において切断作用を行い、堅い岩石では500℃を上回る温度になる。ダイヤモンド圧縮体および接合カーバイド基材のいずれにおいてもニッケル/コバルト合金が含まれるため、複合圧縮体の耐熱疲労性が増加し、接着剤合金としてコバルトを用いる従来技術による複合圧縮体で一般的に見られる問題としてのスネークスキンクラッキングの傾向は減少する。
【図面の簡単な説明】
本発明の複合ダイヤモンド圧縮体の一態様の側断面図。
Claims (7)
- 接合カーバイド基材に接着したダイヤモンド圧縮体を含んでなる複合ダイヤモンド圧縮体であって、ダイヤモンド圧縮体が圧縮体の少なくとも80体積%の量で含まれるダイヤモンド結晶の多結晶性接着マスと、本質的にニッケル/コバルト合金からなる第二相とを含んでなり、接合カーバイド基材が本質的にニッケル/コバルト合金からなる接着剤によって凝集性形態に接着したカーバイド粒子のマスを含んでなる、複合ダイヤモンド圧縮体。
- ニッケル/コバルト合金のニッケル対コバルトの質量比が75:25−20:80の範囲である、請求項1に記載の複合ダイヤモンド圧縮体。
- ニッケル/コバルト合金のニッケル対コバルトの質量比が30:70−45:55の範囲である、請求項1に記載の複合ダイヤモンド圧縮体。
- ニッケル/コバルト合金のニッケル対コバルトの質量比が40:60である、請求項1に記載の複合ダイヤモンド圧縮体。
- 基材のカーバイド粒子をタングステンカーバイド粒子、タンタルカーバイド粒子、チタンカーバイド粒子、モリブデンカーバイド粒子、およびこれらの粒子の2種類以上を含む混合物から選択する、請求項1−4のいずれか一項に記載の複合ダイヤモンド圧縮体。
- 添付図面に関して実質的に本明細書に記載されている、請求項1に記載の複合ダイヤモンド圧縮体。
- ダイヤモンド圧縮体に提供されるカッティングエッジの温度が500℃を上回る、研磨用途における請求項1−6のいずれか一項に記載の複合ダイヤモンド圧縮体の使用。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200002967 | 2000-06-13 | ||
PCT/IB2001/001023 WO2001096050A2 (en) | 2000-06-13 | 2001-06-13 | Composite diamond compacts |
Publications (1)
Publication Number | Publication Date |
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JP2004503675A true JP2004503675A (ja) | 2004-02-05 |
Family
ID=25588792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2002510220A Ceased JP2004503675A (ja) | 2000-06-13 | 2001-06-13 | 複合ダイヤモンド圧縮体 |
Country Status (11)
Country | Link |
---|---|
US (5) | US20040010977A1 (ja) |
EP (1) | EP1292414B1 (ja) |
JP (1) | JP2004503675A (ja) |
KR (1) | KR100790621B1 (ja) |
AT (1) | ATE312680T1 (ja) |
AU (2) | AU2001274364B2 (ja) |
CA (1) | CA2412904A1 (ja) |
DE (1) | DE60115891T2 (ja) |
DK (1) | DK1292414T3 (ja) |
NO (1) | NO20025981L (ja) |
WO (1) | WO2001096050A2 (ja) |
Families Citing this family (10)
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DE602004005828T2 (de) * | 2003-02-11 | 2008-01-10 | Element Six (Pty) Ltd. | Schneidkörper |
US20090035083A1 (en) * | 2007-08-03 | 2009-02-05 | Hunter David T | Double tipped diamond drill bit |
WO2010124149A1 (en) * | 2009-04-22 | 2010-10-28 | Metcraft, Inc. | Fluid flow structure and method of use for continuous motion washing machine |
US8505654B2 (en) * | 2009-10-09 | 2013-08-13 | Element Six Limited | Polycrystalline diamond |
GB2483475B (en) * | 2010-09-08 | 2015-08-05 | Dormer Tools Ltd | Bore cutting tool and method of making the same |
CN101992299B (zh) * | 2010-12-06 | 2013-05-29 | 安泰科技股份有限公司 | 金刚石与硬质合金的复合超硬材料及其双层结构材料的制备方法 |
CN102019154A (zh) * | 2010-12-31 | 2011-04-20 | 柳州市大荣非金属材料有限公司 | 聚晶金刚石复合片的合成方法及合成腔体 |
US8727045B1 (en) * | 2011-02-23 | 2014-05-20 | Us Synthetic Corporation | Polycrystalline diamond compacts, methods of making same, and applications therefor |
US20120251256A1 (en) * | 2011-04-04 | 2012-10-04 | GM Global Technology Operations LLC | Cutting tool for control of surface roughness |
GB201711417D0 (en) * | 2017-07-17 | 2017-08-30 | Element Six (Uk) Ltd | Polycrystalline diamond composite compact elements and methods of making and using same |
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- 2001-06-13 CA CA 2412904 patent/CA2412904A1/en not_active Abandoned
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- 2001-06-13 KR KR1020027016955A patent/KR100790621B1/ko not_active IP Right Cessation
- 2001-06-13 AU AU7436401A patent/AU7436401A/xx active Pending
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US20080314214A1 (en) | 2008-12-25 |
CA2412904A1 (en) | 2001-12-20 |
NO20025981L (no) | 2003-01-21 |
US20040010977A1 (en) | 2004-01-22 |
WO2001096050A2 (en) | 2001-12-20 |
AU2001274364B2 (en) | 2005-09-15 |
AU7436401A (en) | 2001-12-24 |
NO20025981D0 (no) | 2002-12-12 |
KR100790621B1 (ko) | 2007-12-31 |
KR20030034094A (ko) | 2003-05-01 |
DK1292414T3 (da) | 2006-01-30 |
ATE312680T1 (de) | 2005-12-15 |
US20060137257A1 (en) | 2006-06-29 |
US20070130838A1 (en) | 2007-06-14 |
EP1292414A2 (en) | 2003-03-19 |
DE60115891T2 (de) | 2006-06-14 |
WO2001096050A3 (en) | 2002-05-30 |
DE60115891D1 (de) | 2006-01-19 |
EP1292414B1 (en) | 2005-12-14 |
US20050155295A1 (en) | 2005-07-21 |
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