JPS5969472A - Manufacture of diamond composite sintered body - Google Patents
Manufacture of diamond composite sintered bodyInfo
- Publication number
- JPS5969472A JPS5969472A JP57177602A JP17760282A JPS5969472A JP S5969472 A JPS5969472 A JP S5969472A JP 57177602 A JP57177602 A JP 57177602A JP 17760282 A JP17760282 A JP 17760282A JP S5969472 A JPS5969472 A JP S5969472A
- Authority
- JP
- Japan
- Prior art keywords
- sintering
- temperature
- pressure
- diamond
- carbide
- 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.)
- Pending
Links
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、ダイアモンド粉末と硬質物粉末との混合物を
焼結してダイアモンド硬質物複合焼結体を製造する方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a diamond hard material composite sintered body by sintering a mixture of diamond powder and hard material powder.
本発明は、ダイアモンド粉末と、炭化チタン、炭化ジル
コニウム、炭化ハフニウム、炭化タングステン、炭化モ
リブデン、炭化クロム、窒化チタン、窒化ジルコニウム
、窒化ノ１フニウムのうちより選択した硬質物の粉末と
の混合粉末を用いてダイアモンド硬質物複合焼結体を製
造する場合に、其の混合粉末を結合する結合剤として珪
素・コバルト混合粉末まだは珪素・ニッケル混合粉末を
使用することを特徴とするものである。The present invention provides a mixed powder of diamond powder and a powder of a hard material selected from among titanium carbide, zirconium carbide, hafnium carbide, tungsten carbide, molybdenum carbide, chromium carbide, titanium nitride, zirconium nitride, and nitride. When a diamond hard material composite sintered body is produced using this method, a silicon/cobalt mixed powder or a silicon/nickel mixed powder is used as a binder for binding the mixed powder.
本発明（ｒｉ、極めて高い硬度を有するダイアモンドの
粉末と硬度の高い硬質物の粉末との混合粉末に、珪素・
コバルト混合粉末まだは珪素・ニッケル混合粉末を結合
剤として添加した混合粉末を焼結用原料として使用し、
其の焼結用原料をダイアモンドの安定なる温度圧力条件
を満足すると同時に、結合剤として添加している珪素・
コバルト混合粉末まだは珪素・ニッケル混合粉末が溶融
合金を生成して液相焼結を行うに必−妥なｉ、 ｓ ｏ
ｏ℃乃至１，６００℃の範囲内の焼結用温度と５６．
ＯＯＯｋｇ ／ ｃｒｌ乃至６０．０００ｋｇ／ｃａ
ｔ、の範囲内の焼結用圧力とを用いて加圧加熱して、極
めて高い硬度を持つと共に強い４酸化性を備えた工具用
材とするダイアモンド硬質物複合焼結体を製造する工業
的に有効な方法を提供することを目的とするものである
。In the present invention (ri), silicon and
Cobalt mixed powder is used as a raw material for sintering, with mixed powder containing silicon and nickel mixed powder added as a binder.
The raw material for sintering satisfies the stable temperature and pressure conditions of diamond, and at the same time, it is made of silicon, which is added as a binder.
Cobalt mixed powder is still necessary for silicon-nickel mixed powder to produce molten alloy and perform liquid phase sintering.
56. Sintering temperature within the range of 0°C to 1,600°C;
OOOkg/crl~60.000kg/ca
An industrial method for producing a diamond hard material composite sintered body as a tool material having extremely high hardness and strong 4-oxidation properties by heating under pressure using a sintering pressure within the range of The purpose is to provide an effective method.
次に、本発明の方法によってダイアモンド硬質物複合焼
結体を製造する工程と作用とについて況明する。Next, the process and operation of manufacturing a diamond hard material composite sintered body by the method of the present invention will be explained in detail.
ダイアモンド硬質物複合焼結体を製造するに際して使用
する焼結用原料には、ダイアモンド粉末を４０重量％乃
至６０重量％と、炭化チタン、炭化ジルコニウム、炭化
ハフニウム、炭化タングステン、炭化モリブデン、炭化
クロム、炭化珪素、窒化チタン、窒化ジルコニウム、窒
化ハフニウムのうちより選択した硬質物の粉末を４０重
量％乃至１８重量％と、珪素・コバルト混合粉末または
珪素・ニッケル混合粉末を２０重量％乃至２２重量％と
の割合範囲内よシ選定した割合にて混合した混合粉末を
焼結用原料として使用する。斯様に調製した焼結用原料
を容器内に充填し、其の容器を高温高圧発生室内に装填
する。次いで、容器内に充填した焼結用原料を焼結する
作業にて使用する焼結用温度と焼結用圧力とをダイアモ
ンドの安定なる温度圧力条件を満足すると同時に焼結作
業を液相焼結にて行うのに必要な温度圧力条件をも満足
する１、 ５００℃乃至１．６００℃の範囲内の温度と
、５６、０００ ｋｇ ／ ｃｒｌ乃至６０．０００
ｋｑ／ ｃｄの範囲の圧力とより選定する。斯様に選定
した焼結用温度と焼結用圧力とを用いて焼結作業を行う
に当り、先づ、高温高圧発生室内に装填した容器内の焼
結用原料に選定した焼結用圧力を加える。The sintering raw materials used in producing the diamond hard material composite sintered body include 40% to 60% by weight of diamond powder, titanium carbide, zirconium carbide, hafnium carbide, tungsten carbide, molybdenum carbide, chromium carbide, 40% to 18% by weight of hard material powder selected from silicon carbide, titanium nitride, zirconium nitride, and hafnium nitride, and 20% to 22% by weight of silicon/cobalt mixed powder or silicon/nickel mixed powder. A mixed powder mixed at a selected ratio within the ratio range is used as a raw material for sintering. The raw material for sintering thus prepared is filled into a container, and the container is loaded into a high temperature and high pressure generation chamber. Next, the sintering temperature and sintering pressure used in the work of sintering the sintering raw material filled in the container are set so that the temperature and pressure conditions for stable diamond are satisfied, and at the same time, the sintering work is carried out by liquid phase sintering. The temperature within the range of 1,500℃ to 1,600℃ and the temperature and pressure conditions required for the
Select a pressure in the range of kq/cd. In performing the sintering operation using the sintering temperature and sintering pressure selected in this way, first, the selected sintering pressure is applied to the sintering raw material in the container loaded into the high temperature and high pressure generation chamber. Add.
続いて、焼結用圧力を加えた状態にある焼結用原料を徐
々に加熱して選定した焼結用温度にまで昇温して、其の
焼結用温度を保持するに必要な加熱を１０分間乃至６０
分間持続する。其の焼結用圧力と焼結用温度とのもとに
曝らされた容器内の焼結用原料においては、其の焼結用
原料中の珪素・コバルト混合粉末捷たは珪素・ニッケル
混合粉末が溶融合金を生成して、其の溶融合金がダイア
モンド粒子の多数個と硬質物粒子の多数個とが混合した
集合体における個々の粒子の間の間隙に充塞して、其の
充塞した溶融合金が個々のダイアモンド粒子および個々
の硬質物粒子に液相にて焼結した液相焼結体を生成する
。次いで、加えていた焼結用圧力は保持したままで加熱
のみを停止し、更に高温高圧発生室を冷却して其の室内
の温度を６００℃にまで降温する。其の焼結用圧力は保
持された捷まで冷却された液相焼結体においては、安定
しているダイアモンド粒子と硬質物粒子とが混合してい
る集合体における個々の粒子の間の間隙に充塞して個々
の粒子に液相焼結していた溶融合金が凝固して海綿状構
造の合金組織を形成すると同時に個々のダイアモンド粒
子および個々の硬質物粒子に固相焼結した固相焼結体を
生成する。Next, the sintering material under sintering pressure is gradually heated to the selected sintering temperature, and the heating necessary to maintain the sintering temperature is applied. 10 minutes to 60 minutes
Lasts for minutes. In the sintering raw material in the container exposed to the sintering pressure and sintering temperature, the silicon/cobalt mixed powder or the silicon/nickel mixed powder in the sintering raw material The powder forms a molten alloy, and the molten alloy fills the interstices between the individual particles in the aggregate of a large number of diamond particles and a large number of hard material particles, and the filled molten alloy The alloy is sintered into individual diamond particles and individual hard material particles in the liquid phase to form a liquid phase sintered body. Next, only the heating is stopped while maintaining the applied sintering pressure, and the high temperature and high pressure generation chamber is further cooled to lower the temperature inside the chamber to 600°C. The sintering pressure is applied to the gaps between individual particles in the aggregate where stable diamond particles and hard material particles are mixed in the liquid phase sintered body that has been cooled to the point where it is maintained. Solid-phase sintering, in which the molten alloy, which was filled and liquid-phase sintered into individual particles, solidifies to form an alloy structure with a spongy structure, and at the same time solid-phase sintered into individual diamond particles and individual hard material particles. Generate a body.
次いで、保持していた焼結用圧力を常圧にもどして、高
温高圧発生室内よシ容器を押し出し、′其の容器内よシ
固相焼結体を取シ出ず。取り出して得られる固相焼結体
は、ダイアモンド粒子の多数個と硬質物粒子の多数個と
が混合して成れる集合体における個々の粒子の間の間隙
に、珪素・コバルト合金−！たけ珪素・ニッケル合金よ
り成る海綿状構造の合金組織が充塞していて其の海綿状
構造の合金組織が個々のダイアモンド粒子および個々の
硬質物粒子を結合して複合焼結組織体を構成しているダ
イアモンド硬質物複合焼結体である。Next, the sintering pressure that had been maintained was returned to normal pressure, and the container was pushed out of the high-temperature and high-pressure generation chamber, without removing the solid phase sintered body from inside the container. The solid-phase sintered body obtained by taking out the solid-phase sintered body is made by mixing a large number of diamond particles and a large number of hard material particles, and in the gaps between the individual particles, silicon-cobalt alloy -! It is filled with a spongy alloy structure made of bamboo silicon and nickel alloy, and the spongy alloy structure binds individual diamond particles and individual hard material particles to form a composite sintered structure. It is a diamond hard material composite sintered body.
次に、本発明の方法によってダイアモンド硬質物複合焼
結体を製造する工程を実施例により説明する。Next, the process of manufacturing a diamond hard material composite sintered body by the method of the present invention will be explained using examples.
実施例１゜
焼結用原料には、ダイアモンド粉末を５０重量％と、炭
化チタン粉末を３０重量％と、珪素が５０重量％とニッ
ケルが５０重量％との割合を成せる珪素・ニッケル混合
粉末を２０重量％との割合にて混合した混合粉末を使用
した。斯様に調製した焼結用原料を容器内に充填して、
其の容器を高温高圧発生室内に装填した。次いで焼結作
業を始めるに当り、先づ、高温高圧発生室内に装填した
容器内の焼結用原料に焼結用圧力５８．００ Ｄ ｋｐ
／ ｃｒ！を加えた。続いて、焼結用圧力を加えた状
態にある容器内の焼結用原料を徐々に加熱して、焼結用
温度１．５５０℃にまで昇温して其の焼結用温度を保持
するために必要な加熱を５０分間持続した。次いで、加
えていた焼結用圧力は保持したままで加熱のみを停止し
て、更に、高温高圧発生室を外部より水冷して、其の室
内の温度を６００℃にまで降温した。次いで、高温高圧
発生室内より容器を押し出して、其の容器内より焼結体
を取シ出した。Example 1 The raw materials for sintering include a silicon/nickel mixed powder containing 50% by weight of diamond powder, 30% by weight of titanium carbide powder, 50% by weight of silicon, and 50% by weight of nickel. A mixed powder containing 20% by weight of the above was used. Fill the container with the raw material for sintering prepared in this way,
The container was loaded into a high temperature and high pressure generation chamber. Next, to start the sintering work, first, the sintering pressure of 58.00 D kp was applied to the sintering raw material in the container loaded into the high temperature and high pressure generating chamber.
/cr! added. Next, the raw material for sintering in the container with sintering pressure applied is gradually heated to a sintering temperature of 1.550°C and maintained at that sintering temperature. The heating required for this purpose was maintained for 50 minutes. Next, only the heating was stopped while maintaining the applied sintering pressure, and the high temperature/high pressure generation chamber was cooled with water from the outside to lower the temperature inside the chamber to 600°C. Next, the container was pushed out of the high-temperature, high-pressure generation chamber, and the sintered body was taken out from inside the container.
得られた焼結体は、ダイアモンド粒子の多数個と炭化チ
タン粒子の多数個とが混合して成れる集合体における個
々の粒子の間の間隙に、珪素・ニッケル合金よ構成る海
綿状構造の合金組織が充塞していて、其の海綿秋構゛造
の珪素・ニッケル合金組織が個々のダイアモンド粒子お
よび個々の炭化チタン粒子を結合してダイアモンド炭化
チタン複合焼結体を構成しているダイアモンド硬質物複
合焼結体であった。The obtained sintered body has a spongy structure made of a silicon-nickel alloy in the gaps between individual particles in an aggregate formed by mixing many diamond particles and many titanium carbide particles. A hard diamond that is filled with an alloy structure, and the silicon-nickel alloy structure with a cavernous fall structure binds individual diamond particles and individual titanium carbide particles to form a diamond-titanium carbide composite sintered body. It was a composite sintered body.
実施例２
焼結用原料には、ダイアモンド粉末を５０重量％と、炭
化タングステン粉末を６０重量％と珪素が５０重量％と
コバルトが５０重量％との割合にて混合した珪素・コバ
ルト混合粉末を２０重量％との割合にて混合した混合粉
末を使用した。斯様に調製した焼結用原料を用いて焼結
体を製造する作業は実施例１の場合と同様にして行った
。得られた焼結体は、ダイアモンド粒子の多数個と炭化
タングステン粒子の多数個とが混合して成れる集合体に
おける個々の粒子の間の間隙に珪素・コバルト合金より
成る海綿状構造の合金組織が充塞していて、其の海綿状
構造の珪素・コバルト合金組織が個々のダイアモンド粒
子および個々の炭化タングステン粒子を結合してダイア
モンド炭化タングステン複合焼結体を構成しているダイ
アモンド硬質物複合焼結体であった。Example 2 The raw material for sintering was a silicon/cobalt mixed powder that was mixed in a ratio of 50% by weight of diamond powder, 60% by weight of tungsten carbide powder, 50% by weight of silicon, and 50% by weight of cobalt. A mixed powder mixed at a ratio of 20% by weight was used. The operation of manufacturing a sintered body using the raw material for sintering prepared in this manner was carried out in the same manner as in Example 1. The obtained sintered body has an alloy structure with a spongy structure made of a silicon-cobalt alloy in the gaps between individual particles in an aggregate formed by mixing a large number of diamond particles and a large number of tungsten carbide particles. Diamond hard material composite sintered body is filled with diamond and tungsten carbide, and its spongy silicon-cobalt alloy structure binds individual diamond particles and individual tungsten carbide particles to form a diamond-tungsten carbide composite sintered body. It was the body.
実施例 ６
焼結用原料には、ダイアモンド粉末を５０重量％と炭化
クロム粉末を２９重量％と、珪素が５０重量％とニッケ
ルが５０重量％との割合にて混合した珪素・ニッケル混
合粉末を２１重量％との割合にて混合した混合粉末を使
用した。Example 6 The raw material for sintering was a silicon/nickel mixed powder in which 50% by weight of diamond powder, 29% by weight of chromium carbide powder, 50% by weight of silicon, and 50% by weight of nickel were mixed. A mixed powder mixed at a ratio of 21% by weight was used.
斯様に調製した焼結用原料を用いて焼結体を製造する作
業は実施例１の場合と同様にして行った。得られた焼結
体は、ダイアモンド粒子の多数個と炭化クロム粒子の多
数個とが混合して成れる集合体における個々の粒子の間
の間隙に、珪素・ニッケル合金より成る海綿状構造の合
金組織が充塞していて、其の海綿状構造の珪素・ニッケ
ル合金組織が個々のダイアモンド粒子および個々の炭化
クロム粒子を結合してダイアモンド炭化クロム複合焼結
体を構成しているダイアモンド硬質物質複合焼結体であ
った。The operation of manufacturing a sintered body using the raw material for sintering prepared in this manner was carried out in the same manner as in Example 1. The obtained sintered body has a spongy structure made of a silicon-nickel alloy in the spaces between the individual particles in an aggregate formed by mixing many diamond particles and many chromium carbide particles. A diamond hard material composite sintered body in which the structure is filled with silicon and nickel alloy with a spongy structure that binds individual diamond particles and individual chromium carbide particles to form a diamond chromium carbide composite sintered body. It was a union.
実施例 ４゜
焼結用原料には、ダイアモンド粉末を５０重量％と、炭
化珪素粉末を２７重量％と、珪素が５０重量％とコバル
トが５０重量％との割合にて混合した珪素・コバルト混
合粉末を２３重量％との割合にて混合した混合粉末を使
用した。Example 4゜The raw material for sintering is a silicon-cobalt mixture containing 50% by weight of diamond powder, 27% by weight of silicon carbide powder, and a mixture of 50% by weight of silicon and 50% by weight of cobalt. A mixed powder obtained by mixing powder at a ratio of 23% by weight was used.
斯様に調製した焼結用原料を用いて焼結体を製造する作
業は実施例１の場合と同様にして行った。得られた焼結
体は、ダイアモンド粒子の多数個と炭化珪素粒子の多数
個とが混合して成れる集合体における個々の粒子の間の
間隙に珪素・コバルト合金より成る海綿状構造の合金組
織が充塞していて、其の海綿状構造の珪素・コバルト合
金組織が個々のダイアモンド粒子および個々の炭化珪素
粒子を結合してダイアモンド炭化珪素複合焼結体を構成
しているダイアモンド硬質物複合焼結体であった。The operation of manufacturing a sintered body using the raw material for sintering prepared in this manner was carried out in the same manner as in Example 1. The obtained sintered body has an alloy structure with a spongy structure made of a silicon-cobalt alloy in the gaps between individual particles in an aggregate formed by mixing a large number of diamond particles and a large number of silicon carbide particles. Diamond hard material composite sintered body is filled with silicon carbide and its spongy silicon-cobalt alloy structure binds individual diamond particles and individual silicon carbide particles to form a diamond silicon carbide composite sintered body. It was the body.
実施例 ５゜
焼結用原料には、ダイアモンド粉末を５０重量％と、窒
化チタン粉末を２９重量％と、珪素が５０重量％とニッ
ケルが５０重量％との割合にて混合した珪素・ニッケル
混合粉末を２１重量％との割合にて混合した混合粉末を
使用した。Example 5゜The raw material for sintering is a silicon-nickel mixture in which 50% by weight of diamond powder, 29% by weight of titanium nitride powder, 50% by weight of silicon, and 50% by weight of nickel are mixed. A mixed powder obtained by mixing powder at a ratio of 21% by weight was used.
斯様に調製した焼結用原料を用いて焼結体を製造する作
業は実施例１の場合と同様にして行った。得られた焼結
体は、ダイアモンド粒子の多数個と窒化チタン粒子の多
数個とが混合して成れる集合体における個々の粒子の間
の間隙に、珪素・ニッケル合金より成る海綿状構造の合
金組織が充塞していて、其の海綿状構造の珪素・ニッケ
ル合金組織が個々のダイアモンド粒子および個々の窒化
チタン粒子を結合してダイアモンド・窒化チタン複合焼
結体を構成しているダイアモンド硬質物複合焼結体であ
った。The operation of manufacturing a sintered body using the raw material for sintering prepared in this manner was carried out in the same manner as in Example 1. The obtained sintered body has a spongy structured alloy made of a silicon-nickel alloy in the gaps between individual particles in an aggregate formed by mixing many diamond particles and many titanium nitride particles. A diamond hard material composite in which the structure is filled with silicon and nickel alloy with a spongy structure that binds individual diamond particles and individual titanium nitride particles to form a diamond/titanium nitride composite sintered body. It was a sintered body.
実施例６
焼結用原料には、ダイアモンド粉末を５０重量％と、窒
化ジルコニウム粉末を２９重量％と珪素が５０重量％と
コバルトが５０重量％との割合にて混合した珪素・コバ
ルト混合粉末を２１重量％との割合にて混合した混合粉
末を使用した。斯様に調製した焼結用原料を用いて焼結
体を製造する作業は実施例１の場合と同様にして行った
。得られた焼結体は、ダイアモンド粒子の多数個と窒化
ジルコニウム粒子の多数個とが混合して成れる集合体に
おける個々の粒子の間の間隙に、珪素・コバルト合金よ
り成る海綿状構造の合金組織が充塞していて、其の海綿
状構造の珪素・コバルト合金組織が個々のダイアモンド
粒子および個々の窒化ジルコニウム粒子を結合してダイ
アモンド窒化ジルコニウム複合焼結体を構成しているダ
イアモンド硬質物複合焼結体であった。Example 6 The raw material for sintering was a silicon/cobalt mixed powder in which 50% by weight of diamond powder, 29% by weight of zirconium nitride powder, 50% by weight of silicon, and 50% by weight of cobalt were mixed. A mixed powder mixed at a ratio of 21% by weight was used. The operation of manufacturing a sintered body using the raw material for sintering prepared in this manner was carried out in the same manner as in Example 1. The obtained sintered body has a spongy structured alloy made of a silicon-cobalt alloy in the spaces between individual particles in an aggregate formed by mixing a large number of diamond particles and a large number of zirconium nitride particles. A diamond hard material composite sintered body is a diamond hard material composite sintered body in which the structure is filled with silicon and cobalt alloy with a spongy structure that binds individual diamond particles and individual zirconium nitride particles. It was a union.
以上に説明した本発明の方法による実施例にて製造した
ダイアモンド硬質物複合焼結体より成るチップと、ダイ
アモンド粉末が７９重量％とコバルト粉末が２１重量％
との割合の混合物を焼結したダイアモンド焼結体より成
るチップとを用いて、アルミニウムが８８重量％と珪素
が１２重量％との組成を成せるアルミニウム合金である
シルミンより成るピストン素材を用いて直径５５ミリ、
長さ４０ミリの円筒面を形成する作業を行った。其の作
業において、上記のダイアモンド焼結体より成るチップ
を使用した場合は、−回の研磨にて連続して１４．１０
０個切削できたのに対し、本発明の方法よシ製造したダ
イアモンド硬質物複合焼結体より成るチップを使用した
場合は、−回の研磨にて連続して１５．９’ＯＯ個乃至
１ ’４．７ Ｇ ０個切削できた。この切削実験によ
シ明かなように、アルミニウム合金材の切削作業におい
て、は、コバルトのみを結合剤としたダイアモンド焼結
体より成るチップと比較して、本発明の方法により製造
したダイアモンド硬質物複合焼結体より成るチップは、
優れた生産性を実現することができて、本発明のダイア
モンド硬質物複合焼結体の製造法が工業的に有効な方法
であることが証明できた。A chip made of a diamond hard material composite sintered body manufactured in the example according to the method of the present invention described above, and a diamond powder content of 79% by weight and a cobalt powder content of 21% by weight.
and a piston material made of Silumin, an aluminum alloy with a composition of 88% by weight aluminum and 12% by weight silicon. Diameter 55mm,
Work was carried out to form a cylindrical surface with a length of 40 mm. In that work, when using a chip made of the above-mentioned diamond sintered body, it is necessary to polish it continuously for -14.10 times.
In contrast, when using a tip made of a diamond hard material composite sintered body manufactured by the method of the present invention, 15.9'OO pieces to 1 piece could be cut continuously in - times of polishing. '4.7 G 0 pieces were cut. As is clear from this cutting experiment, in the cutting work of aluminum alloy materials, compared to chips made of diamond sintered bodies using only cobalt as a binder, the diamond hard chips manufactured by the method of the present invention are more effective in cutting aluminum alloy materials. Chips made of composite sintered bodies are
Excellent productivity could be achieved, proving that the method for producing a diamond hard material composite sintered body of the present invention is an industrially effective method.
特許出願人 倉 富 龍 部０Patent applicant Ryu Kuratomi Department 0
Claims (1)
チタン、炭化ジルコニウム、炭化ハフニウム、炭化タン
グステン、炭化モリブデン、炭化クロム、炭化珪素、窒
化チタン、窒化ジルコニウム、窒化ハフニウムのうちょ
シ選択シた硬質物の粉末を４０重量％乃至１８重量％と
、珪素・コバルト混合粉末または珪素・ニッケル混合粉
末を２０重量％乃至２２重量％との割合範囲内より選択
した割合にて混合した混合粉末を焼結用原料とし、其の
焼結用原料を容器内に充填し、其の容器を高温高圧発生
室内に装填し、次いで、容器内に充填した焼結用原料を
焼結する作業において使用する焼結用温度と焼結用圧力
とをダイアモンドの安定なる温度圧力条件を満足すると
同時に金属粉末が溶融して液相焼結を行うに必要な温度
圧力条件を満足する１、 ５００℃乃至１．６００℃の
範囲内の温度とｓ ｙ、 ｏ ｏ 。 ｋｙ ／ ｃ＋＋！乃至６０．０００ ｋｙ／ ｃａの
範囲内の圧力とよシ選定し、次いで、容器内に充填した
焼結用原料を焼結する作業を始めるに当り、先づ、其の
容器内の焼結用原料に選定した焼結用圧力を加え、続い
て、其の焼結用圧力を加えた状態にある焼結用原料を徐
々に加熱して選定した焼結用温度にまで昇温し、続いて
、其の焼結用温度を保持するに必要な加熱を１０分間乃
至６０分間持続し、次いで、加えていた焼結用圧力は保
持した−１：壕で加熱のみを停止し、更に、高温高圧発
生室を冷却して其の室内の温度が３００℃にまで降温し
た後に、高温高圧発生室内より焼結体を取り出すことを
特徴とするダイアモンド硬質物複合焼結体の製造法。[Scope of Claims] 40% to 60% by weight of diamond powder, and a combination of titanium carbide, zirconium carbide, hafnium carbide, tungsten carbide, molybdenum carbide, chromium carbide, silicon carbide, titanium nitride, zirconium nitride, and hafnium nitride. The selected hard material powder was mixed in a ratio selected from a range of 40% to 18% by weight and a silicon/cobalt mixed powder or a silicon/nickel mixed powder in a proportion range of 20% to 22% by weight. A process in which the mixed powder is used as a raw material for sintering, the raw material for sintering is filled into a container, the container is loaded into a high temperature and high pressure generation chamber, and then the raw material for sintering filled in the container is sintered. The sintering temperature and sintering pressure used in the process were set to 1,500°C, which satisfies the temperature and pressure conditions for stable diamond production, and at the same time satisfies the temperature and pressure conditions necessary for melting the metal powder and performing liquid phase sintering. and a temperature in the range of 1.600°C and s y, o o . ky/c++! After selecting a pressure within the range of 60,000 ky/ca, and then starting the work of sintering the sintering raw materials filled in the container, first, the sintering material in the container is Apply the selected sintering pressure to the raw material, then gradually heat the sintering raw material with the sintering pressure applied to the selected sintering temperature, and then , the heating necessary to maintain the sintering temperature was maintained for 10 to 60 minutes, and then the applied sintering pressure was maintained -1: Only the heating was stopped at the trench, and the high temperature and high pressure A method for manufacturing a diamond hard material composite sintered body, which comprises taking out the sintered body from the high-temperature and high-pressure generation chamber after the generation chamber is cooled and the temperature inside the chamber is lowered to 300°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57177602A JPS5969472A (en) | 1982-10-12 | 1982-10-12 | Manufacture of diamond composite sintered body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57177602A JPS5969472A (en) | 1982-10-12 | 1982-10-12 | Manufacture of diamond composite sintered body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5969472A true JPS5969472A (en) | 1984-04-19 |
Family
ID=16033863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57177602A Pending JPS5969472A (en) | 1982-10-12 | 1982-10-12 | Manufacture of diamond composite sintered body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5969472A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0719871A4 (en) * | 1994-06-03 | 1999-05-19 | Sumitomo Electric Industries | Nonmagnetic or feeble magnetism diamond sintered body and method of manufacturing the same |
| US6939506B2 (en) * | 2003-05-30 | 2005-09-06 | The Regents Of The University Of California | Diamond-silicon carbide composite and method for preparation thereof |
| US7998573B2 (en) | 2006-12-21 | 2011-08-16 | Us Synthetic Corporation | Superabrasive compact including diamond-silicon carbide composite, methods of fabrication thereof, and applications therefor |
-
1982
- 1982-10-12 JP JP57177602A patent/JPS5969472A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0719871A4 (en) * | 1994-06-03 | 1999-05-19 | Sumitomo Electric Industries | Nonmagnetic or feeble magnetism diamond sintered body and method of manufacturing the same |
| US6939506B2 (en) * | 2003-05-30 | 2005-09-06 | The Regents Of The University Of California | Diamond-silicon carbide composite and method for preparation thereof |
| US7998573B2 (en) | 2006-12-21 | 2011-08-16 | Us Synthetic Corporation | Superabrasive compact including diamond-silicon carbide composite, methods of fabrication thereof, and applications therefor |
| US8168115B2 (en) | 2006-12-21 | 2012-05-01 | Us Synthetic Corporation | Methods of fabricating a superabrasive compact including a diamond-silicon carbide composite table |
| US8276691B2 (en) | 2006-12-21 | 2012-10-02 | Us Synthetic Corporation | Rotary drill bit including at least one superabrasive cutting element having a diamond-silicon carbide composite table |
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