JPH031063B2 - - Google Patents
Info
- Publication number
- JPH031063B2 JPH031063B2 JP24643786A JP24643786A JPH031063B2 JP H031063 B2 JPH031063 B2 JP H031063B2 JP 24643786 A JP24643786 A JP 24643786A JP 24643786 A JP24643786 A JP 24643786A JP H031063 B2 JPH031063 B2 JP H031063B2
- Authority
- JP
- Japan
- Prior art keywords
- vitrified
- grinding wheel
- ultra
- abrasive grains
- grinding
- 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.)
- Expired
Links
- 239000006061 abrasive grain Substances 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003082 abrasive agent Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
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、
特にビトリフアイド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] [Industrial Application Field] The present invention relates to a grinding wheel used in a high-speed grinding device,
In particular, the present invention relates to a vitrified carbide grinding wheel, which makes it possible to ultrafine grains of highly hard materials in an extremely rational and economical manner.
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。従来のビトリフアイド系砥石で
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処することができ
なかつた。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。
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. Conventional vitrified grindstones have not been able to handle long-term stable production due to severe wear and tear on the grindstone when ultrafinely grinding materials with hardness equal to or higher than the abrasive grains. A solution to this problem is to use ultra-hard abrasives such as diamond or borazone (a trade name for boron nitride abrasives), but these abrasives are extremely expensive and require a 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ある。
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 was used effectively and appropriately.
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、ビトリフアイド回転砥石お
よび固定砥石の互に相対する外周摩砕平坦部に超
硬質砥粒の層を一体成形したことを特徴とするも
のである。上記ビトリフアイド砥石はビトリフア
イド砥石−ポリマー複合体であつてもよい。
In other words, the ultra-hard grinding wheel of the present invention is one in which ultra-hard abrasive grains are provided in layers only in the part of the grinding wheel that is subjected to the most load during grinding, and the outer periphery of the vitrified rotary grinding wheel and the fixed grinding wheel are flat, facing each other. It is characterized by having a layer of ultra-hard abrasive grains integrally molded on the part. The vitrified whetstone may be a vitrified whetstone-polymer composite.
本発明における超硬摩砕砥石は、たとえば、意
匠登録第454419号または実用新案登録第1293255
号に記載の摩砕砥石を基盤として得られる。該摩
砕砥石は円周に一定幅の平坦部（摩砕凸条のない
部分）が設けられており、平坦部に連続して内側
に摩砕凸条郡を付設して円錐台形の中くぼみ部を
設けたものである。砥石の材質は、たとえば、ア
ルミナ系砥粒とビトリフアイドまたはこれとポリ
マーの複合体である。
The carbide grinding wheel in the present invention is, for example, Design Registration No. 454419 or Utility Model Registration No. 1293255.
Obtained using the grinding wheel described in No. The grinding wheel has a flat part (a part without grinding protrusions) of a certain width around the circumference, and continuous to the flat part, grinding protrusions are added on the inside to form a hollow in the shape of a truncated cone. It has a section. The material of the grindstone is, for example, a composite of alumina-based abrasive grains and vitrified, or a composite of this and a polymer.
本発明は、摩砕時にもつ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、回転および固定砥石の外周平坦
部に超硬質砥粒の層を一体成形することを骨子と
している。超硬質砥粒としてはダイヤモンドまた
はボラゾンを使用する。層の幅および厚さはそれ
ぞれ５〜30mm、0.1〜５mmが好ましい。設置され
る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、摩砕凸条郡の外周端近辺まで層の幅
が中心方向に及ぶことになる。層の厚さは回転砥
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 during grinding, the load is applied to the flat part of the outer periphery of the grinding wheel, and a layer of ultra-hard abrasive grains is integrated into the flat part of the outer periphery of the rotating and stationary grinding wheel. The main idea is to mold it. Diamond or borazone is used as the ultra-hard abrasive grain. The width and thickness of the layer are preferably 5 to 30 mm and 0.1 to 5 mm, respectively. When the thickness of the installed layer is relatively thick, the width of the layer extends in the center direction to a relatively inner side of the flat outer peripheral portion and near the outer peripheral edge of the grinding convex row group. The thickness of the layer can be changed as appropriate between the rotating grindstone side and the fixed grindstone side.
本発明により、ビトリフアイド砥石またはビト
リフアイド砥石−ポリマー複合体に超硬質砥粒層
を設けるにはつぎのような方法がある。第１の方
法は、たとえば上記アルミナ系砥粒とビトリフア
イド材の場合には、砥石成形時に、砥石の外周平
面部に相当するセツコウ型の底部に、粒度約50〜
100メツシユの超硬質砥粒にビトリフアイド系無
機結合剤を、砥粒100部対し10〜50部の比率で加
えたものをあらかじめ層状に置き、ついで上記
Al2O3砥粒に結合剤を加えたものを充填し、焼成
して一体的に成形する。またポリマー複合体は、
この成形体の内部空孔に、特開昭61−159375号公
報記載の方法に従つて、熱可塑性のポリマーを該
空孔全容積の30〜60％の範囲で空孔壁面から成長
充填させるか、または熱可塑性、熱硬化性プラス
チツクのモノマーもしくはオリゴマーを減圧また
は加圧下に注入し、所定の位置で重合あるいは縮
合後表面仕上げをすることによつて得られる。 According to the present invention, the following methods can be used to provide an ultra-hard abrasive grain layer on a vitrified whetstone or a vitrified whetstone-polymer composite. In the first method, for example, in the case of the above-mentioned alumina abrasive grains and vitrified material, when forming the whetstone, a grain size of about 50 to
A layer of 100 mesh ultra-hard abrasive grains with a vitrified inorganic binder added at a ratio of 10 to 50 parts per 100 parts of the abrasive grains is placed in advance, and then the above
It is filled with Al 2 O 3 abrasive grains and a binder, then fired and molded into one piece. In addition, polymer composites are
The internal pores of this molded body are grown and filled with a thermoplastic polymer from the pore wall surface in a range of 30 to 60% of the total volume of the pores according to the method described in JP-A-61-159375. Alternatively, it can be obtained by injecting thermoplastic or thermosetting plastic monomers or oligomers under reduced or increased pressure, polymerizing or condensing at a predetermined location, and then finishing the surface.
第２の方法としては、ビトリフアイド砥石また
はビトリフアイド砥石−ポリマー複合体を作製
後、外周平坦部を超硬質砥粒層の厚さだけ切削す
るか、あるいはセツコウ型をあらかじめこの厚さ
だけ調整しておき、ここに上記超硬質砥粒とビク
トリフアイド系結合剤の混合物を設け、所定の砥
石寸法となるよう一体成形することができる。 The second method is to make a vitrified grinding wheel or a vitrified whetstone-polymer composite and then cut the flat part of the outer periphery to the thickness of the ultra-hard abrasive grain layer, or to adjust the grinding die to this thickness in advance. A mixture of the above-mentioned ultra-hard abrasive grains and a Victorifide binder can be provided here and integrally molded to obtain a predetermined grindstone size.
以下実施例に代えて図面により本発明をさらに
詳しく説明する。
The present invention will be explained in more detail below using drawings instead of examples.
第１図は本発明による一対のビトリフアイド超
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。両砥石の摩砕面３，３′はビト
リフアイド砥石またはビトリフアイド砥石とポリ
マーの複合体からなり、また互に相対する外周摩
砕平坦部には超硬質砥粒の層４，４′が一体成形
によつて設けられている。 FIG. 1 is an explanatory cross-sectional view of a pair of vitrified carbide grinding wheels according to the present invention, where 1 shows a rotating grindstone and 2 shows a fixed grindstone. The grinding surfaces 3, 3' of both grinding wheels are made of a vitrified grinding wheel or a composite of a vitrified grinding wheel and a polymer, and layers 4, 4' of ultra-hard abrasive grains are integrally molded on the outer peripheral grinding flat portions facing each other. It is set aside.
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
ビトリフアイド砥石またはビトリフアイド砥石−
ポリマー複合体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
はきわめて大きい。
As is clear from the above description, according to the present invention, expensive ultra-hard abrasive grains are used in a portion of the grinding surface, that is, a vitrified grinding wheel or a vitrified grinding wheel.
By using this method only on the flattened outer peripheral portion of the polymer composite, it is possible to rationally and economically make ultra-fine particles of highly hard substances, and this has great industrial significance.
第１図は本発明による一対のビトリフアイド超
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′…
…ビトリフアイド砥石、４，４′……超硬質砥粒
層。
FIG. 1 is an explanatory cross-sectional view of a pair of vitrified carbide grinding wheels according to the present invention. In the figure, 1... Rotating grindstone, 2... Fixed grindstone, 3, 3'...
...Vitrified grindstone, 4,4'...super hard abrasive grain layer.
Claims (1)
摩砕平坦部に超硬質砥粒の層を一体成形したこと
を特徴とするビトリフアイド超硬摩砕砥石。 ２ ビトリフアイド超硬摩砕砥石がビトリフアイ
ド砥石−ポリマー複合体である特許請求の範囲第
１項記載のビトリフアイド超硬摩砕砥石。 ３ 超硬質の砥粒がダイヤモンドである特許請求
の範囲第１項もしくは第２項記載のビトリフアイ
ド超硬摩砕砥石。 ４ 超硬質の砥粒が窒化ホウ素である特許請求の
範囲第１項もしくは第２項記載のビトリフアイド
超硬摩砕砥石。[Scope of Claims] 1. A vitrified superhard grinding wheel, characterized in that a layer of superhard abrasive grains is integrally molded on the outer peripheral grinding flat portions of a rotary grindstone and a fixed grindstone, which face each other. 2. The vitrified carbide grinding wheel according to claim 1, wherein the vitrified carbide grinding wheel is a vitrified grinding wheel-polymer composite. 3. The vitrified carbide grinding wheel according to claim 1 or 2, wherein the superhard abrasive grains are diamond. 4. The vitrified ultra-hard grinding wheel according to claim 1 or 2, wherein the ultra-hard abrasive grains are boron nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24643786A JPS63100949A (en) | 1986-10-16 | 1986-10-16 | Vitrified cemented carbide grinding stone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24643786A JPS63100949A (en) | 1986-10-16 | 1986-10-16 | Vitrified cemented carbide grinding stone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63100949A JPS63100949A (en) | 1988-05-06 |
| JPH031063B2 true JPH031063B2 (en) | 1991-01-09 |
Family
ID=17148456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24643786A Granted JPS63100949A (en) | 1986-10-16 | 1986-10-16 | Vitrified cemented carbide grinding stone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63100949A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2543575B2 (en) * | 1988-05-28 | 1996-10-16 | 株式会社ノリタケカンパニーリミテド | Double structure grindstone for online roll grinding |
| JPH01301073A (en) * | 1988-05-28 | 1989-12-05 | Noritake Co Ltd | Grinding wheel for on-line roll grinding |
| JPH049646U (en) * | 1990-05-08 | 1992-01-28 | ||
| JP2503158B2 (en) * | 1992-04-23 | 1996-06-05 | 株式会社ノリタケカンパニーリミテド | Cup-shaped grindstone |
-
1986
- 1986-10-16 JP JP24643786A patent/JPS63100949A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63100949A (en) | 1988-05-06 |
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