JPH0629401B2 - Abrasive grain coated with super hard material - Google Patents
Abrasive grain coated with super hard materialInfo
- Publication number
- JPH0629401B2 JPH0629401B2 JP63155618A JP15561888A JPH0629401B2 JP H0629401 B2 JPH0629401 B2 JP H0629401B2 JP 63155618 A JP63155618 A JP 63155618A JP 15561888 A JP15561888 A JP 15561888A JP H0629401 B2 JPH0629401 B2 JP H0629401B2
- Authority
- JP
- Japan
- Prior art keywords
- abrasive grains
- abrasive
- coated
- abrasive grain
- grain
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/4584—Coating or impregnating of particulate or fibrous ceramic material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は超硬物質をコーティングした砥粒に関するもの
で、在来砥粒の利用分野と、在来超砥粒の利用分野の全
般に関係している。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an abrasive grain coated with a superhard material, and relates to the field of use of conventional abrasive grains and the general field of use of conventional superabrasive grains. is doing.
即ち、砥粒加工産業に於いて、砥粒を切刃としての研削
砥石・研磨布紙のような固定砥粒による加工法を用いた
研削加工・ホーニング加工・超仕上・電界研削・研磨布
紙加工等および砥粒のままで動作する遊離砥粒による加
工法を用いたラッピング・超音波加工・噴射加工・バレ
ル加工・バフ加工等として利用される。That is, in the abrasive grain processing industry, a grinding process using a processing method using a fixed abrasive such as a grinding wheel / abrasive cloth with abrasive grains as a cutting edge, honing, super finishing, electric field grinding, and polishing cloth. It is used for lapping, ultrasonic machining, jet machining, barrel machining, buff machining, etc. using machining methods such as machining and free abrasive grains that operate with the abrasive grains as they are.
従来の在来砥粒及び超砥粒と云われるダイヤモンド粒子
（Ｄ、SD）又は、立方晶窒化ほう素粒子（CBN）等は、
それぞれ砥粒加工産業の分野で汎用されているが、在来
砥粒は一般工業用構造材料で比較的軟質の材料を加工対
象とし、超砥粒は、比較的硬質で、一般に難削材と云わ
れる材料を加工対象としている。Diamond particles (D, SD) or cubic boron nitride particles (CBN), which are known as conventional and superabrasive particles, are
Although each is widely used in the field of the abrasive grain processing industry, conventional abrasive grains are general industrial structural materials for processing relatively soft materials, and superabrasive grains are relatively hard and generally difficult-to-cut materials. The so-called material is processed.
研磨材に用いる砥粒としては、超砥粒と云われるダイヤ
モンド粒子（Ｄ：天然ダイヤモンド・SD：合成ダイヤモ
ンド）又は、立方晶窒化ほう素粒子（CBN）等が最も優
れていることは周知のところであるが、これら超砥粒は
非常に高価であり、在来砥粒に対し数千倍であるから、
在来砥粒がkg単位の値段であるのに対し、超砥粒はカラ
ット単位の値段である。It is well known that diamond particles (D: natural diamond, SD: synthetic diamond) or cubic boron nitride particles (CBN), which are called superabrasive particles, are the most excellent as abrasive particles used for the abrasive. However, these superabrasives are very expensive, because they are thousands times more than conventional abrasives,
Conventional abrasives are priced in kg, whereas superabrasives are priced in carats.
従って、これら超砥粒を用いた研磨材は、特に高付加価
値の見込める用途にしか活用できない。Therefore, the abrasives using these superabrasive grains can be utilized only for applications in which particularly high added value can be expected.
しかし、在来砥粒に対し、数倍の硬度、数倍の剛性と、
数十倍の耐摩耗性を特徴とする超砥粒の安価出現は、当
産業界万人の希求するところであり、これが実現するこ
とで、砥粒加工産業は画期的発展が見込まれる。However, it has several times the hardness and several times the rigidity of conventional abrasive grains.
The cheap appearance of superabrasive grains featuring several tens of times the wear resistance is a matter for everyone in this industry, and by realizing this, the abrasive grain processing industry is expected to undergo breakthrough development.
本発明は従来の砥粒加工産業界での上記問題点に鑑み提
案されたもので、在来砥粒の表面に、超硬物質の薄膜を
コーティングして超硬質粒子化した砥粒を提供するもの
である。The present invention has been proposed in view of the above problems in the conventional abrasive grain processing industry, and provides an abrasive grain that is made into a superhard particle by coating a thin film of a superhard substance on the surface of a conventional abrasive grain. It is a thing.
在来砥粒の種類は、酸化アルミニューム（Al2O3）を主
成分としたＡ、WA砥粒・炭化硅素（SiC）を主成分とし
たＣ、GC砥粒・酸化ジルコニューム（ZrO2）と酸化アル
ミニューム（Al2O3）を主成分としたAz砥粒その他砥粒
加工業界で一般的に使用されている砥粒が使用できる。The types of conventional abrasive grains are A, which is mainly composed of aluminum oxide (Al 2 O 3 ), C which is mainly composed of WA abrasive grains and silicon carbide (SiC), GC abrasive grains and zirconium oxide (ZrO 2 ). Az abrasive grains mainly composed of aluminum oxide (Al 2 O 3 ) and other abrasive grains generally used in the abrasive grain processing industry can be used.
上記在来砥粒の粒径は、53ミクロン以上2.8ミリメート
ル以下の範囲が使用できる。The particle size of the conventional abrasive can be in the range of 53 microns to 2.8 mm.
また、在来砥粒の表面にコーティングする超硬物質とし
ては、ダイヤモンド・立方晶窒化ほう素（CBN）等が使
用できる。Further, as the superhard material coated on the surface of conventional abrasive grains, diamond / cubic boron nitride (CBN) or the like can be used.
上記超硬物質の薄膜の厚さは、0.5〜10ミクロンの範囲
が使用できる。The thickness of the thin film of the superhard material may be in the range of 0.5 to 10 microns.
本発明の砥粒は、表面が超硬物質の薄膜で被覆してある
ことにより、内部が安価な在来砥粒であるにも拘らず、
硬度、剛性、耐摩耗性が向上し、被削材に対する切れ味
が向上する。Abrasive grains of the present invention, the surface is coated with a thin film of a superhard material, despite the fact that the inside is inexpensive conventional grains,
The hardness, rigidity, and wear resistance are improved, and the sharpness of the work material is improved.
本発明の砥粒（10）は、第１図に示す様に、在来砥粒
（10a）の表面に、超硬物質の薄膜（10b）をコーティン
グして超硬質粒子化したものである。As shown in FIG. 1, the abrasive grain (10) of the present invention is obtained by coating the surface of a conventional abrasive grain (10a) with a thin film (10b) of a superhard substance to form ultrahard particles.
上記在来砥粒（10a）の種類は、 (1) 酸化アルミニューム（Al2O3）を主成分としたＡ、
WA砥粒 (2) 炭化硅素（SiC）を主成分としたＣ、GC砥粒 (3) 酸化ジルコニューム（ZrO2）と酸化アルミニュー
ム（Al2O3）を主成分としたAz砥粒 (4) その他の在来砥粒（但し、超砥粒は含まない。） である。The types of conventional abrasive grains (10a) are (1) A whose main component is aluminum oxide (Al 2 O 3 ),
WA Abrasive grains (2) C, GC abrasive grains with silicon carbide (SiC) as the main component (3) Az abrasive grains with zirconium oxide (ZrO 2 ) and aluminum oxide (Al 2 O 3 ) as the main components ) Other conventional abrasive grains (however, superabrasive grains are not included).
また、上記在来砥粒（10a）の表面にコーティングする
超硬物質の種類は、ダイヤモンド、立方晶窒化ほう素
（CBN）等である。Further, the kind of the superhard material coated on the surface of the conventional abrasive grain (10a) is diamond, cubic boron nitride (CBN), or the like.
上記在来砥粒（10a）の表面に、上記超硬物質の薄膜（1
0b）をコーティングする方法としては、各種CVD法（Che
mical Vapor Deposition−化学気相成長法）を利用し
て行う。On the surface of the conventional abrasive grain (10a), a thin film (1
0b), various CVD methods (Che
mical Vapor Deposition-chemical vapor deposition method).
上記超硬物質の薄膜（10b）の厚さは、0.5〜10ミクロン
の範囲が強度上並びに経済性の点で好ましい。The thickness of the thin film (10b) of the superhard material is preferably in the range of 0.5 to 10 μm in terms of strength and economy.
また、在来砥粒（10a）の大きさは、超硬物質の均一な
薄膜を形成するためには粒度で＃220即ちJIS-6001の粒
度分布によれば粒径53ミクロン以上、また各種砥石、研
磨布紙、ラップ剤、バフ用砥粒等に用いられる粗粒とし
て＃８即ち前記同様の粒度分布で2.8ミリメートル以下
の範囲の粒径を対象とするものである。In addition, the size of the conventional abrasive grains (10a) is, in order to form a uniform thin film of a super hard material, the grain size is # 220 or 53 microns or more according to the grain size distribution of JIS-6001, and various grindstones. As the coarse particles used for polishing cloth paper, lapping agent, abrasive particles for buffing, etc., # 8, that is, a particle size distribution similar to the above is intended for a particle size in the range of 2.8 mm or less.
上記のように在来砥粒（10a）の表面を超硬物質の薄膜
（10b）でコーティングした砥粒（10）は、これを各種
用途の砥石や研磨布紙その他の研磨材として使用するも
のである。Abrasive grains (10) with the surface of the conventional abrasive grains (10a) coated with a thin film (10b) of a superhard substance as described above are used as grindstones for various applications, abrasive cloth paper and other abrasives. Is.
次に、本発明の具体例を説明する。Next, a specific example of the present invention will be described.
在来砥粒である炭化硅素（SiC）粒子の全面に、プラズ
マＣＶＤ法によりダイヤモンド膜を４〜６μｍの厚さに
析出させて得た本発明砥粒（10）を用いて切断砥石を作
り、又、炭化硅素のままの在来砥粒を用いた切断砥石を
作り、切断能力の差を比較することにより効果を確認し
た。A cutting grindstone is made using the abrasive grains (10) of the present invention obtained by depositing a diamond film to a thickness of 4 to 6 μm by plasma CVD on the entire surface of silicon carbide (SiC) particles that are conventional abrasive grains, Moreover, the effect was confirmed by making a cutting grindstone using conventional abrasive grains of silicon carbide and comparing the difference in cutting ability.
（砥粒） 在来砥粒…昭和電工（株）製ＧＣ＃60砥粒 本発明砥粒…同上にダイヤモンド膜４〜６μｍコーティ
ングした砥粒（以下、ＣＤ＃60砥粒と云う）なお、＃60
砥粒とは粒径で250〜300μｍのものである。(Abrasive grain) Conventional abrasive grain ... Showa Denko Co., Ltd. GC # 60 abrasive grain Abrasive grain according to the present invention ... Abrasive grain coated with diamond film of 4 to 6 [mu] m (hereinafter referred to as CD # 60 abrasive grain) # 60
Abrasive grains have a grain size of 250 to 300 μm.
（切断砥石） レジボンド・キンバレータイプとして第２図の通りのも
のを在来砥粒と、本発明砥粒とを用いて２種類製作し
た。第２図において、（11）は台金、（12）は砥石層を
示し、外形153.3φmm、砥石層（12）の厚さ2.0mm、幅4.
8mmといしている。(Cutting grindstone) Two types of registration bond / Kinvalley type as shown in FIG. 2 were manufactured using conventional abrasive grains and the abrasive grains of the present invention. In FIG. 2, (11) shows a base metal, (12) shows a grindstone layer, the outer shape is 153.3φ mm, the grindstone layer (12) has a thickness of 2.0 mm and a width of 4.
It is said to be 8 mm.
（砥石層の配合） （混合） イ．砥粒を60〜70℃に加熱する。(Compound of grinding stone layer) (Mixing) a. Heat the abrasive to 60-70 ° C.
ロ．レジンの内一部を液体レジンとし、これを加熱され
た砥粒表面に均一にコーティングする。B. A liquid resin is used as a part of the resin, and the heated abrasive grain surface is uniformly coated with the liquid resin.
ハ．これに残りのレジン粉末と、フィラーを予めよく掻
き混ぜたものを混合し、溶解付着させて、コーテッドグ
レインを得る。C. The rest of the resin powder and the one in which the filler was thoroughly stirred in advance were mixed and dissolved and adhered to obtain a coated grain.
（成形） 第３図に示す様に、台金用円板（13）を予め組み込んだ
下金形（14）に、前工程で得たコーテッドグレイン9.8g
を充填し、均一にならし、上金形（15）を入れて上下か
ら圧縮して砥石層（12）を成形する。(Molding) As shown in FIG. 3, a lower mold (14) in which a disc (13) for base metal is previously incorporated is coated with 9.8 g of coated grains obtained in the previous step
Are filled and evenly leveled, the upper die (15) is put, and compressed from the upper and lower sides to form the grindstone layer (12).
このときの金形温度50〜60℃、圧力150ton、圧縮時間上
下各々60秒とした。At this time, the mold temperature was 50 to 60 ° C., the pressure was 150 tons, and the compression time was 60 seconds both above and below.
第３図において、（16）は外型、（17）は固定型、（1
8）は芯型である。In FIG. 3, (16) is an outer mold, (17) is a fixed mold, and (1)
8) is a core type.
（焼成） 成形金型から取り出した生砥石を焼成用金型に移載し、
熱風循環式電気炉により、フェノールレジン焼成温度プ
ログラムにより焼成した。(Firing) Transfer the raw whetstone removed from the molding die to the firing die,
Firing was performed by a hot air circulation type electric furnace according to a phenol resin firing temperature program.
以上により在来砥粒ＧＣ＃60と、本発明砥粒の１つであ
るＣＤ＃60とにより全ての条件を同じにして製作したレ
ジボンド・キンバレータイプの砥石をそれぞれ一枚づつ
得た。As described above, the Regibbond-Kimvalley type grindstones produced under the same conditions were used to obtain the conventional abrasive grains GC # 60 and CD # 60 which is one of the abrasive grains of the present invention.
両砥石につき、次に、条件を同一にした切断テストによ
り切断能力を比較する。Next, the cutting ability of both grindstones is compared by a cutting test under the same conditions.
（切断機及び切断条件） 切断機…（株）マルトー製 クリスタルカッタＭＣ−41
3型 同上砥石駆動モータ…0.75KW ３φ200Ｖ 同上砥石回転数 …2100R.P.M 同上無負荷時電流 …2.0Ａ 同上切断方式 …湿式スライド式１パス切断 同上切削送り速度 …10mm／min 切断機の概略は、第４図に示しており、同図において、
（19）はテーブル、（20）は被切断物、（21）は砥石、
（22）は冷却水供給ノズルを示している。(Cutting machine and cutting conditions) Cutting machine ... Maruto Co., Ltd. Crystal cutter MC-41
Type 3 Same as above Grinding wheel drive motor… 0.75KW 3φ200V Same as above Grinding wheel rotation speed… 2100R.PM Same as above No load current… 2.0A Same as above Cutting method… Wet slide 1 pass cutting Same as above Cutting feed rate… 10mm / min It is shown in FIG.
(19) is a table, (20) is an object to be cut, (21) is a grindstone,
(22) indicates a cooling water supply nozzle.
（切断テストによる負荷電流の比較） （テスト結果の考察） 上記比較で明らかなように、在来砥粒ＧＣ＃60の表面に
ダイヤモンド膜４〜６μｍをコーティングして得た本発
明砥粒は、研削材としての性能が大きく進歩しているこ
とを表している。(Comparison of load current by disconnection test) (Discussion of Test Results) As is clear from the above comparison, the abrasive grain of the present invention obtained by coating the surface of the conventional abrasive grain GC # 60 with the diamond film of 4 to 6 μm has greatly improved the performance as an abrasive. It means that
本発明の砥粒によれば、安価な在来砥粒をベースとし
て、被削材に接触して研削を行う砥粒表面を高い硬度、
剛性及び耐摩耗性をもつ超硬物質で構成することがで
き、研削性能の優れた砥粒を安価に提供できる利点があ
る。According to the abrasive grains of the present invention, based on inexpensive conventional abrasive grains, the hardness of the abrasive grain surface for contacting and grinding the work material is high,
It has the advantage that it can be made of a superhard material having rigidity and wear resistance, and that it can provide abrasive grains with excellent grinding performance at a low cost.
第１図は本発明砥粒の一例を示す拡大断面図、第２図は
本発明砥粒を適用した切断砥石の一例を示す縦断側面
図、第３図はその成形金型の縦断側面図、第４図は第２
図の砥石を用いた切断機の一例を示す側面図である。 （10）……本発明砥粒、（10a）……在来砥粒、 （10b）……超硬物質の薄膜。FIG. 1 is an enlarged cross-sectional view showing an example of the abrasive grains of the present invention, FIG. 2 is a vertical sectional side view showing an example of a cutting grindstone to which the abrasive grains of the present invention are applied, and FIG. 3 is a vertical sectional side view of a molding die thereof. Figure 4 is second
It is a side view which shows an example of the cutting machine which used the grindstone of the figure. (10) …… Inventive grain, (10a) …… Conventional grain, (10b) …… Cemented carbide thin film.
Claims (3)
下の在来砥粒の表面に、超硬物質の薄膜を厚さ0.5〜10
ミクロンの範囲でコーティングして超硬質粒子化したこ
とを特徴とする超硬物質をコーティングした砥粒。1. A thin film of a superhard material having a thickness of 0.5 to 10 on the surface of conventional abrasive grains having a grain size of 53 microns or more and 2.8 mm or less.
Abrasive grains coated with a super-hard material characterized by being made into ultra-hard particles by coating in the micron range.
（Al2O3）を主成分としたＡ、WA砥粒・炭化硅素（SiC）
を主成分としたＣ、GC砥粒・酸化ジルコニューム（Zr
O2）と酸化アルミニューム（Al2O3）を主成分としたAz
砥粒等とした特許請求の範囲第１項に記載の超硬物質を
コーティングした砥粒。2. The type of conventional abrasive grains is A, WA abrasive grains / silicon carbide (SiC) whose main component is aluminum oxide (Al 2 O 3 ).
C, GC abrasive grains and zirconium oxide (Zr
Az containing O 2 ) and aluminum oxide (Al 2 O 3 ) as main components
Abrasive grains coated with the cemented carbide according to claim 1 as abrasive grains.
窒化ほう素（CBN）等とした特許請求の範囲第１項に記
載の超硬物質をコーティングした砥粒。3. An abrasive grain coated with a superhard material according to claim 1, wherein the kind of the superhard material is diamond / cubic boron nitride (CBN) or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63155618A JPH0629401B2 (en) | 1987-07-21 | 1988-06-22 | Abrasive grain coated with super hard material |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62-183086 | 1987-07-21 | ||
| JP18308687 | 1987-07-21 | ||
| JP63155618A JPH0629401B2 (en) | 1987-07-21 | 1988-06-22 | Abrasive grain coated with super hard material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01113485A JPH01113485A (en) | 1989-05-02 |
| JPH0629401B2 true JPH0629401B2 (en) | 1994-04-20 |
Family
ID=26483571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63155618A Expired - Lifetime JPH0629401B2 (en) | 1987-07-21 | 1988-06-22 | Abrasive grain coated with super hard material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629401B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2767897B2 (en) * | 1989-06-16 | 1998-06-18 | 住友電気工業株式会社 | Method for producing composite diamond abrasive grains for precision polishing |
| US5085671A (en) * | 1990-05-02 | 1992-02-04 | Minnesota Mining And Manufacturing Company | Method of coating alumina particles with refractory material, abrasive particles made by the method and abrasive products containing the same |
| JP3509188B2 (en) * | 1994-06-22 | 2004-03-22 | ソニー株式会社 | Method for producing fine particles for chemical mechanical polishing and polishing method using the same |
| US5551959A (en) * | 1994-08-24 | 1996-09-03 | Minnesota Mining And Manufacturing Company | Abrasive article having a diamond-like coating layer and method for making same |
| JP2015086238A (en) * | 2013-10-28 | 2015-05-07 | 株式会社ユーテック | Polishing agent, polishing article, polishing agent aerosol, polishing member and method for producing polishing agent |
| JP6398333B2 (en) * | 2014-06-03 | 2018-10-03 | 株式会社ジェイテクト | Vitrified bond grinding wheel manufacturing method |
| US9567492B2 (en) * | 2014-08-28 | 2017-02-14 | Sinmat, Inc. | Polishing of hard substrates with soft-core composite particles |
| CN108251056A (en) | 2016-12-29 | 2018-07-06 | 圣戈本陶瓷及塑料股份有限公司 | Abrasive grains, fixed abrasive article and the method for forming the fixation abrasive article |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0788502B2 (en) * | 1987-05-15 | 1995-09-27 | 三菱マテリアル株式会社 | Hard composite powder abrasive for cutting and grinding |
-
1988
- 1988-06-22 JP JP63155618A patent/JPH0629401B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01113485A (en) | 1989-05-02 |
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