JPS63100950A - Cemented carbide grinding stone consisting of ceramics material - Google Patents
Cemented carbide grinding stone consisting of ceramics materialInfo
- Publication number
- JPS63100950A JPS63100950A JP24643886A JP24643886A JPS63100950A JP S63100950 A JPS63100950 A JP S63100950A JP 24643886 A JP24643886 A JP 24643886A JP 24643886 A JP24643886 A JP 24643886A JP S63100950 A JPS63100950 A JP S63100950A
- Authority
- JP
- Japan
- Prior art keywords
- grinding wheel
- grinding
- grindstone
- abrasive grains
- ceramic material
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 title description 8
- 239000000463 material Substances 0.000 title description 5
- 239000004575 stone Substances 0.000 title 1
- 239000006061 abrasive grain Substances 0.000 claims description 15
- 229910010293 ceramic material Inorganic materials 0.000 claims description 14
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011882 ultra-fine particle Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
- Crushing And Grinding (AREA)
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は高速摩砕装置に使用される摩砕砥石、ことにセ
ラミックス材よりなる超硬摩砕砥石に関するもので、高
硬度物質の超微粒化を極めて合理的に、かつ経済的に行
うことを可能としたものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a grinding wheel used in a high-speed grinding device, particularly a super hard grinding wheel made of ceramic material, which is made of ultrafine particles of high hardness material. This made it possible to carry out the process extremely rationally and economically.
近時特に高硬度物質の超微粒化のニーズが多発しており
、これに対応できる砥石の出現が強く要望されている。Recently, there has been a frequent need for ultra-fine graining of particularly hard materials, and there is a strong demand for a grindstone that can meet this demand.
周知のビ［・リファイド系砥石では、砥粒と同等あるい
は砥粒よりも硬度の高い物質の超微粒粉砕においては、
砥石の損耗が甚だしいため、長時間の安定生産に対ｇｎ
することができなかった。これを解決するには、ダイヤ
モンドまたはボラゾン（窒化ホウ素研摩剤の商品名）の
ような超硬質の砥粒を使用すればよいが、これらの砥粒
はきわめて高価であるため、砥石摩砕面の全面に使用す
ることは経済的に不可能である。With the well-known birefied grindstone, when ultrafinely grinding a substance that is equivalent to or harder than the abrasive grains,
The wear and tear of the grinding wheel is severe, so it is difficult to maintain stable production over long periods of time.
I couldn't do it. A solution to this problem is to use ultra-hard abrasive grains such as diamond or borazone (a trade name for boron nitride abrasives), but these abrasive grains are extremely expensive, so It is economically impossible to use it over the entire surface.
本発明は、上記のような高硬度物質の超微粒化を合理的
かつ経済的に行い、長時間の安定生産を可能にすること
を目的とし、超硬質砥粒を摩砕面の一部に有効適切に利
用したもので必る。The purpose of the present invention is to rationally and economically make ultra-fine grains of high-hardness substances as described above, and to enable stable production over a long period of time. It must be used effectively and appropriately.
［問題点を解決するための手段］
すなわち本発明の超硬摩砕砥石は、摩砕時に最もロード
のかかる砥石の部分にのみ超硬質砥粒を層状に設けたも
ので、セラミックス材よりなる回転砥石および固定砥石
の互に相対する外周摩砕平坦部に超硬質砥粒を再焼結せ
しめたことを特徴とするものである。[Means for Solving the Problems] That is, the carbide grinding wheel of the present invention is one in which superhard abrasive grains are provided in layers only in the part of the grindstone that is subjected to the most load during grinding, and the grinding wheel is made of a rotating ceramic material. The grinding wheel is characterized in that ultra-hard abrasive grains are resintered on the flat grinding portions of the outer peripheries of the grinding wheel and the fixed grinding wheel that face each other.
本発明でいうセラミックス材にはクラシックセラミック
スのみならずニューセラミックス。The ceramic materials used in the present invention include not only classic ceramics but also new ceramics.
モダンセラミックスも含まれることは言うまでもない。Needless to say, modern ceramics are also included.
本発明における超硬摩砕砥石は、例えば特開昭６０−１
２２０５２号公報に記載のジルコニアセラミックス材そ
の他のセラミックス材よりなる摩砕砥石を超硬加工して
得られる。該摩砕砥石は、第１図（イ）および（ロ）に
示した回転砥石の平面図およびＩ−Ｉ線（ａｌ、ｂＬｃ
ｌ、ｂ４．ａ４）断面図、第２図（イ）および（ロ）に
示した固定砥石の平面図および■−■線（ａｌｏ、ｂ１
’、ｃ’、ｂ４’。The carbide grinding wheel in the present invention is, for example, JP-A-60-1
It is obtained by processing a grinding wheel made of zirconia ceramic material or other ceramic material described in Japanese Patent No. 22052 to be carbide. The grinding wheel is shown in the plan view of the rotary grinding wheel shown in FIGS.
l, b4. a4) Cross-sectional view, plan view of the fixed grindstone shown in Figures 2 (a) and (b), and the ■-■ line (alo, b1
', c', b4'.
ａ４゛）断面図から分るように、回転砥石は、中央に回
転軸挿込み用の孔および回転軸への締付は用凹部を設け
た金属台に、セラミックス摩砕面を接着した構造、固定
砥石は、中央に材料供給用の孔を有する金属台に、セラ
ミックス摩砕面を接着した構造をもち、いずれも円周に
一定幅の平坦部（凹溝のない部分）が設けられており、
該平坦部に連続して内側には摩砕凹溝群を付設した中く
ぼみ状の截頭円鉗形状部が設けられている。砥石の材質
は回転砥石、固定砥石とも例えばジルコニアセラミック
スで、これは酸化ジルコニウムを主成分とし、これに酸
化イツトリウムを配合して高温焼成（１８００〜２００
０’Ｃ）して得られる。a4゛) As can be seen from the cross-sectional view, the rotating grindstone has a structure in which a ceramic grinding surface is bonded to a metal base with a hole in the center for inserting the rotating shaft and a recess for tightening the rotating shaft. Fixed whetstones have a structure in which a ceramic grinding surface is bonded to a metal base with a material supply hole in the center, and each has a flat part (without grooves) of a constant width around the circumference. ,
Continuing from the flat portion, a hollow truncated circular portion is provided on the inner side thereof and is provided with a group of grinding grooves. The material of the whetstone for both rotary and fixed whetstones is, for example, zirconia ceramics, which has zirconium oxide as its main component, mixed with yttrium oxide, and is fired at a high temperature (1800 to 200℃).
0'C).
本発明は、摩砕時にもっともロードがかかるのは砥石の
外周摩砕平坦部であるとの知見に基いてなされたもので
、上記回転、固定砥石の外周摩砕平坦部（第１図（ロ）
および第２図（ロ）のＷおよびＷｏの部分）に超硬質砥
粒を再焼結せしめることを骨子としている。超硬質砥粒
としては、ダイヤモンドまたはボラゾンを使用し、たと
えば約５０〜１００メツシユのこれら超硬質砥粒をビト
リフッイド系結合剤を用いて上記ジルコニアセラミック
ス砥石に再焼結させる。結合剤の比率は砥粒１００部に
対し１０〜５０部の範囲が好適である。また再焼結層の
幅および厚さはそれぞれ５〜３０＃、０．１〜５＃が好
ましい。このため−次焼成（８００’Ｃ前後）後の砥石
の修正切削時に上記外周平坦部をこの厚さだけ切削する
か、あるいは砥石成形用のセラコラ型をあらかじめこの
厚さだけ調整しておき、高温焼成によって再焼結を施し
た必と所定の砥石寸法か得られるようにする。なお再焼
結層の厚さが比較的厚い場合には、外周平坦部の比較的
内側、摩砕凹溝群の外周端近辺まで再焼結層が及ぶこと
になる。再焼結の厚さは回転砥石側と固定砥石側で適宜
変えることもできる。The present invention was made based on the knowledge that the most loaded area during grinding is the flat part on the outer periphery of the grinding wheel. )
The main point is to re-sinter the ultra-hard abrasive grains in the parts marked W and Wo in FIG. 2 (b). Diamond or borazone is used as the ultra-hard abrasive grains, and about 50 to 100 meshes of these ultra-hard abrasive grains are resintered into the zirconia ceramic grinding wheel using a vitrifluid binder. The ratio of the binder to 100 parts of abrasive grains is preferably in the range of 10 to 50 parts. Further, the width and thickness of the resintered layer are preferably 5 to 30# and 0.1 to 5#, respectively. For this reason, when correcting the grinding wheel after the next firing (around 800'C), the flat part of the outer periphery should be cut to this thickness, or the Ceracola mold for forming the grindstone should be adjusted to this thickness in advance, and the high temperature The grindstone must be resintered by firing to obtain the desired size. Note that when the thickness of the resintered layer is relatively thick, the resintered layer extends to a relatively inner side of the flat outer peripheral portion and near the outer peripheral end of the grinding groove group. The resintering thickness can be changed as appropriate between the rotating grindstone side and the fixed grindstone side.
以下実施例に代えて図面により本発明をざらに詳しく説
明する。The present invention will be explained in detail below using drawings instead of examples.
第３図は本発明による一対の例えばジルコニアセラミッ
クス材よりなる超硬摩砕砥石の断面説明図で、１は回転
砥石、２は固定砥石を示す。FIG. 3 is an explanatory cross-sectional view of a pair of carbide grinding wheels made of, for example, a zirconia ceramic material according to the present invention, in which 1 is a rotary grindstone and 2 is a fixed grindstone.
両磁石の摩砕面３，３°は例えばジルコニアセラミック
ス材からなり、また互に相対する外周摩砕平坦部には超
硬質砥粒の再焼結が施され、再焼結層４，４°が設けら
れている。The grinding surfaces 3,3° of both magnets are made of, for example, a zirconia ceramic material, and the mutually opposing outer peripheral grinding flat portions are resintered with ultra-hard abrasive grains, forming a resintered layer 4,4°. is provided.
以上の説明から明らかなように、本発明によれば、高価
な超硬質砥粒を摩砕面の一部、すなわちセラミックス材
よりなる砥石の外周摩砕平坦部のみに利用することによ
り、高硬度の物質を合理的かつきわめて経済的に超微粒
化することができ、工業的な意義は絶大である。As is clear from the above description, according to the present invention, high hardness can be achieved by using expensive ultra-hard abrasive grains only in a part of the grinding surface, that is, in the flat part of the outer periphery of the grinding wheel made of ceramic material. It is possible to rationally and economically atomize substances into ultra-fine particles, and the industrial significance is enormous.
第１図（イ）、（ロ）は超硬加工を行わないセラミック
ス材よりなる回転砥石の平面図および断面図、第２図（
イ）、（ロ）は同固定砥石の平面図および断面図である
。第３図は本発明による一対のセラミックス材よりなる
超硬摩砕砥石の断面説明図である。図において、１・・
・・・・・・回転砥石
２・・・・・・・・固定砥石
３．３′・・・・・・セラミックス材摩砕面４．４“・
・・・・・超硬貿砥粒再焼結層第１図
（イ）
（口〕
第２図
（イ）
（ロ）
第３図Figures 1 (a) and (b) are a plan view and a sectional view of a rotary grindstone made of ceramic material that is not processed by carbide, and Figure 2 (
A) and (B) are a plan view and a sectional view of the fixed grindstone. FIG. 3 is an explanatory cross-sectional view of a pair of cemented carbide grinding wheels made of ceramic materials according to the present invention. In the figure, 1...
...Rotary grindstone 2 ...Fixed grindstone 3.3' ... Ceramic material grinding surface 4.4"
...Carbide abrasive grain resintered layer Fig. 1 (a) (mouth) Fig. 2 (a) (b) Fig. 3
Claims (3)
平坦部に超硬質砥粒を再焼結せしめたことを特徴とする
セラミックス材よりなる超硬摩砕砥石。(1) A superhard grinding wheel made of a ceramic material, characterized in that superhard abrasive grains are resintered on the flat grinding portions of the outer peripheries of the rotary grindstone and the fixed grindstone, which face each other.
囲第１項記載のセラミックス材よりなる超硬摩砕砥石。(2) A superhard grinding wheel made of a ceramic material according to claim 1, wherein the superhard abrasive grains are diamond.
１項記載のセラミックス材よりなる超硬摩砕砥石。(3) A superhard grinding wheel made of a ceramic material according to claim 1, wherein the superhard abrasive grains are borazone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24643886A JPS63100950A (en) | 1986-10-16 | 1986-10-16 | Cemented carbide grinding stone consisting of ceramics material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24643886A JPS63100950A (en) | 1986-10-16 | 1986-10-16 | Cemented carbide grinding stone consisting of ceramics material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63100950A true JPS63100950A (en) | 1988-05-06 |
| JPH031064B2 JPH031064B2 (en) | 1991-01-09 |
Family
ID=17148466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24643886A Granted JPS63100950A (en) | 1986-10-16 | 1986-10-16 | Cemented carbide grinding stone consisting of ceramics material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63100950A (en) |
-
1986
- 1986-10-16 JP JP24643886A patent/JPS63100950A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH031064B2 (en) | 1991-01-09 |
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