JPH05320623A - Ceramic fiber abrasive material - Google Patents
Ceramic fiber abrasive materialInfo
- Publication number
- JPH05320623A JPH05320623A JP11074391A JP11074391A JPH05320623A JP H05320623 A JPH05320623 A JP H05320623A JP 11074391 A JP11074391 A JP 11074391A JP 11074391 A JP11074391 A JP 11074391A JP H05320623 A JPH05320623 A JP H05320623A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- alumina
- polishing
- abrasive
- ceramic fiber
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 92
- 239000000919 ceramic Substances 0.000 title claims abstract description 22
- 239000003082 abrasive agent Substances 0.000 title abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000002245 particle Substances 0.000 claims abstract description 31
- 239000013078 crystal Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims description 50
- 239000000843 powder Substances 0.000 abstract description 2
- 239000002243 precursor Substances 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000003746 surface roughness Effects 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000007613 slurry method Methods 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000003630 growth substance Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 241000972756 Boronia Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920000572 Nylon 6/12 Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- -1 borazone Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、研磨性能が高く精密研
磨に適したセラミック繊維研磨材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic fiber abrasive having high polishing performance and suitable for precision polishing.
【０００２】[0002]
【従来の技術】セラミックを研磨成分として含有する研
磨材として、ダイヤモンド、ボラゾン、アルミナ、炭化
珪素等の多結晶若しくは単結晶粒子よりなる粒子状研磨
材、あるいは、炭化珪素、アルミナ−シリカ等のセラミ
ック繊維を研磨成分とする繊維状研磨材が知られてい
る。粒子状研磨材は、一般にセラミック焼結体を粉砕し
て製造されており、結晶相は多結晶体で、研磨時には多
結晶粒子が崩れ、結晶粒子が徐々に破壊や脱落すること
によって被研磨物の表面を研磨していく。これらの粒子
状研磨材の研磨成分は、セラミック焼結体を粉砕したも
のであるため形状や粒子径が不揃いで、均一で滑らかな
研磨面を得るのは難しいという欠点がある。これに対し
繊維状研磨材は、研磨成分のセラミック繊維を一方向に
揃え樹脂で固めたり、一方向に並べたＵＤシ−トを積層
したものをブラシ状あるいは砥石状に構成し、主として
繊維の断面で研磨を行うものである。しかし、従来のセ
ラミック繊維研磨材に使用されるセラミック繊維は、通
常結晶構造を有しないアモルファス繊維、又は結晶が非
常に細かい低結晶性の繊維であり、繊維の側面部分は非
常に滑らかで、この側面部分には研磨能力がなく、研磨
は主として繊維の断面部分で行われる。この場合、研磨
面の粗さ、即ち研磨精度は、セラミック繊維の繊維径に
依存するが、アモルファス又は低結晶性繊維は固いた
め、研磨面のエッジ部分が崩れ難く、繊維径のバラツキ
により大きく影響を受け、研磨面が、不均一になるなど
問題点があった。2. Description of the Related Art As an abrasive containing a ceramic as an abrasive component, a particulate abrasive made of polycrystalline or single crystal particles such as diamond, borazone, alumina and silicon carbide, or a ceramic such as silicon carbide and alumina-silica. Fibrous abrasives containing fibers as abrasive components are known. The particulate abrasive is generally manufactured by crushing a ceramic sintered body, the crystalline phase is a polycrystalline body, the polycrystalline particles collapse during polishing, and the crystal particles gradually break down or fall off, resulting in an object to be polished. The surface of is polished. Since the polishing component of these particulate abrasives is obtained by crushing a ceramic sintered body, the shapes and particle diameters are uneven, and it is difficult to obtain a uniform and smooth polished surface. On the other hand, the fibrous abrasive material is formed by arranging ceramic fibers as an abrasive component in one direction and hardening them with a resin, or by laminating UD sheets arranged in one direction in a brush shape or a whetstone shape. The cross section is polished. However, the ceramic fibers used in conventional ceramic fiber abrasives are usually amorphous fibers that do not have a crystalline structure, or low crystalline fibers with very fine crystals, and the side portions of the fibers are very smooth. The side portion has no polishing ability, and the polishing is mainly performed on the cross section of the fiber. In this case, the roughness of the polishing surface, that is, the polishing accuracy depends on the fiber diameter of the ceramic fiber, but since the amorphous or low crystalline fiber is hard, the edge portion of the polishing surface is hard to collapse, and the variation of the fiber diameter has a great influence. Therefore, there is a problem that the polished surface becomes uneven.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、前記
従来技術の問題点を解決し、取扱が容易で、研磨能力が
高く、精密研磨に適したセラミック繊維研磨材を提供す
ることにある。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art, to provide a ceramic fiber abrasive which is easy to handle, has a high polishing ability, and is suitable for precision polishing. ..
【０００４】[0004]
【課題を解決するための手段】本発明者らは、前記の目
的に鑑み鋭意検討の結果、結晶性の高い多結晶アルミナ
質セラミック繊維を用いることにより、前記課題を解決
できることを見出し本発明を完成した。すなわち、本発
明は、粒子径が０．０２μｍ以上のα−アルミナ結晶粒
子で構成された多結晶アルミナ質セラミック繊維を研磨
成分として含有することを特徴とするセラミック繊維研
磨材である。本発明の研磨材は、研磨成分として粒子径
が０．０２μｍ以上のα−アルミナ結晶粒子により一様
に構成された多結晶アルミナ質セラミック繊維を含有す
る。この多結晶アルミナ質セラミック繊維は、主として
α−アルミナ結晶粒子により構成されているので、繊維
の表面には結晶粒子径の約1／10〜1／4の深さに相当す
る凹凸が存在する。この凹凸及び繊維断面のエッジ部分
により研磨が行われる。また、この繊維は多結晶体であ
るので研磨の進行に伴い表面が崩れて行き、滑らかな研
磨が行われ、α−アルミナ結晶粒子自体は充分な硬度を
有するので研磨能力も大きい。なお、ここで使用される
繊維の断面形状は円形のみならず楕円形、星形など種々
の形状をとることができる。DISCLOSURE OF THE INVENTION As a result of intensive studies in view of the above objects, the present inventors have found that the above problems can be solved by using a polycrystalline alumina ceramic fiber having high crystallinity. completed. That is, the present invention is a ceramic fiber abrasive characterized by containing, as a polishing component, a polycrystalline aluminous ceramic fiber composed of α-alumina crystal particles having a particle diameter of 0.02 μm or more. The abrasive of the present invention contains, as a polishing component, a polycrystalline alumina ceramic fiber uniformly composed of α-alumina crystal particles having a particle size of 0.02 μm or more. Since the polycrystalline alumina ceramic fiber is mainly composed of α-alumina crystal particles, the surface of the fiber has irregularities corresponding to a depth of about 1/10 to 1/4 of the crystal particle diameter. Polishing is performed by the unevenness and the edge portion of the fiber cross section. Further, since this fiber is a polycrystal, the surface of the fiber collapses as the polishing progresses, smooth polishing is performed, and the α-alumina crystal particles themselves have sufficient hardness, so that the polishing ability is large. The cross-sectional shape of the fiber used here can be various shapes such as an elliptical shape and a star shape as well as a circular shape.
【０００５】多結晶アルミナ質繊維としては、アルミナ
含有率９０％以上、好ましくは９５％以上であることが
望ましい。特に、アルミナ純度が９９％以上の繊維は、
電子部品など被研削面にＳｉ分など特定の不純分の残存
を嫌うものの研磨にも使用できるという利点がある。ア
ルミナ含有率が９０％未満ではα−アルミナ結晶が充分
成長せず良好な多結晶アルミナ質繊維が得られ難い。多
結晶アルミナ質セラミック繊維の製造方法は特に制限さ
れるものではなく、それ自体公知の多結晶アルミナ質セ
ラミック繊維の製造方法に従って製造したものを使用す
ればよいが、アルミナ前駆体の溶液にアルミナ粉末を分
散させ必要によりＭｇＯやＺｒＯ2等の結晶粒子成長調
整剤などを添加したスラリ−を紡糸後焼成するスラリ−
法が高純度の多結晶α−アルミナ繊維を得ることができ
るので特に好適である。α−アルミナ結晶粒子の大きさ
は、焼成温度、焼成時間あるいは結晶粒子成長調整剤の
使用などによって調整することができる。α−アルミナ
結晶粒子径及び多結晶アルミナ質セラミック繊維の繊維
径は、セラミック繊維研磨材の研磨性能及び研磨精度に
大きく影響する。本発明の研磨材においては、α−アル
ミナ結晶粒子径は、０．０２μｍ以上、好ましくは０．
１μｍ以上、多結晶アルミナ質セラミック繊維の繊維径
は１００μｍ以下とするのが望ましい。α−アルミナ結
晶粒子径が０．０２μｍ未満では繊維表面の凹凸による
研磨性能が低くなり、また、繊維径が１００μｍを越え
ると研磨面が粗くなり過ぎるほか、繊維自体の強度や取
扱性が低下するので好ましくない。It is desirable that the polycrystalline alumina fiber has an alumina content of 90% or more, preferably 95% or more. Fibers with an alumina purity of 99% or higher,
There is an advantage that it can be used also for polishing such as electronic parts that do not want to retain a specific impurity such as Si on the surface to be ground. If the alumina content is less than 90%, α-alumina crystals do not grow sufficiently and it is difficult to obtain good polycrystalline alumina fibers. The method for producing the polycrystalline alumina ceramic fiber is not particularly limited, and those produced according to the method for producing the polycrystalline alumina ceramic fiber known per se may be used, but the alumina precursor solution may contain alumina powder. Slurry in which a crystal grain growth regulator such as MgO or ZrO 2 is added, if necessary, and the mixture is spun and fired after spinning.
The method is particularly preferable because it can obtain highly pure polycrystalline α-alumina fibers. The size of the α-alumina crystal particles can be adjusted by the firing temperature, the firing time, the use of a crystal grain growth regulator, or the like. The α-alumina crystal particle size and the fiber size of the polycrystalline alumina ceramic fiber have a great influence on the polishing performance and polishing accuracy of the ceramic fiber abrasive. In the abrasive of the present invention, the α-alumina crystal particle size is 0.02 μm or more, preferably 0.1.
It is desirable that the polycrystalline alumina ceramic fibers have a fiber diameter of 1 μm or more and 100 μm or less. If the α-alumina crystal particle size is less than 0.02 μm, the polishing performance due to the unevenness of the fiber surface becomes poor, and if the fiber size exceeds 100 μm, the polished surface becomes too rough and the strength and handleability of the fiber itself deteriorates. It is not preferable.
【０００６】本発明のセラミック繊維研磨材は、前記の
多結晶アルミナ質セラミック繊維を種々の形状に加工し
た研磨成分を主体として構成される。先ず、多結晶アル
ミナ質セラミック繊維を５ｍｍ以下の長さに切断したチ
ョップドファイバ−は粒子状研磨材の形で使用すること
ができる。すなわち、チョップドファイバ−を、必要に
より適当な助剤と共に水やアルコ−ル等の溶剤中に分散
させてスラリ−状の研磨材としたり、不織布や紙の表面
に接着させて布状、紙状の研磨材とする。この短繊維状
の研磨成分は、被研磨物と接触すると容易に圧壊し、微
細な粒子となるので滑らかな研磨が可能で精密研磨に好
適である。また、複数本の多結晶アルミナ質セラミック
繊維を収束したフィラメント糸を一方向に並べたＵＤシ
−トを作製し、このＵＤシ−トを不織布や紙の表面に接
着させシ−ト状の研磨材にしたり、ＵＤシ−トを任意に
角度を変えて積層し樹脂で固め、必要により切削加工を
施して棒状、板状等の成形研磨材とすることもできる。
このＵＤシ−トを使用したシ−ト状研磨材は、多結晶ア
ルミナ質セラミック繊維の側面部の研磨能力を利用した
ものである。また、成形研磨材は、繊維の断面部及び側
面部の研磨能力を利用したものであり、高い研磨能力を
有し、精密な研磨を行うことができる。さらに、多結晶
アルミナ質セラミック繊維のフィラメント糸を樹脂で被
覆するか、複数本のフィラメント糸を一方向に揃えて樹
脂で固めて紐状の研磨材とすることができる。この研磨
材を適当な長さに切断し、円盤状あるいは円筒状等の基
材に植生したブラシ状の研磨材は、特に優れた研磨性能
を示す。本発明のセラミック繊維研磨材の研磨成分であ
る多結晶アルミナ質セラミック繊維は、α−アルミナ結
晶粒子で構成されているため、繊維の断面及び側面の全
表面に凹凸があり、従来のセラミック繊維研磨材のよう
に繊維の断面のエッジ部分だけではなく全表面での研磨
が可能である。しかも多結晶体であり、被研磨物と接触
した部分から徐々に崩れていくため、滑らかで均一な研
磨が行われる。さらに、崩壊したα−アルミナ粒子自体
は硬度が高いので研磨能力は高い。本発明のセラミック
繊維研磨材は、研磨能力が高く、α−アルミナ粒子の粒
径あるいは繊維径を適宜調整することにより、粗削りか
ら精密研磨まで広範囲にわたって適用が可能な高性能研
磨材である。The ceramic fiber abrasive of the present invention is mainly composed of an abrasive component obtained by processing the above-mentioned polycrystalline alumina ceramic fiber into various shapes. First, a chopped fiber obtained by cutting a polycrystalline alumina ceramic fiber into a length of 5 mm or less can be used in the form of a particulate abrasive. That is, the chopped fiber is dispersed in a solvent such as water or alcohol together with an appropriate auxiliary agent as required to form a slurry-like abrasive, or it is adhered to the surface of a non-woven fabric or paper to form a cloth or paper. As the abrasive. This short fibrous polishing component is easily crushed when it comes into contact with an object to be polished and becomes fine particles, which enables smooth polishing and is suitable for precision polishing. Further, a UD sheet is prepared by arranging filament yarns in which a plurality of polycrystalline alumina ceramic fibers are bundled in one direction, and the UD sheet is adhered to the surface of a non-woven fabric or paper to form a sheet-like polishing. Alternatively, the UD sheet may be laminated at various angles and solidified with a resin, and may be cut if necessary to obtain a rod-shaped or plate-shaped molded abrasive.
The sheet-like abrasive using this UD sheet utilizes the polishing ability of the side surface portion of the polycrystalline alumina ceramic fiber. Further, the shaped abrasive material utilizes the polishing ability of the cross-section portion and the side surface portion of the fiber, has a high polishing ability, and can perform precise polishing. Further, the filament yarn of the polycrystalline alumina ceramic fiber can be coated with a resin, or a plurality of filament yarns can be aligned in one direction and fixed with the resin to form a string-shaped abrasive. A brush-like abrasive material obtained by cutting this abrasive material into a suitable length and vegetating it on a disk-shaped or cylinder-shaped substrate exhibits particularly excellent polishing performance. Since the polycrystalline alumina ceramic fiber, which is the polishing component of the ceramic fiber abrasive of the present invention, is composed of α-alumina crystal particles, the cross section and the entire surface of the side surface of the fiber have irregularities, and conventional ceramic fiber polishing It is possible to polish not only the edge of the cross section of the fiber but also the entire surface like a material. Moreover, since it is a polycrystalline material, it gradually collapses from the portion in contact with the object to be polished, so that smooth and uniform polishing is performed. Further, the disintegrated α-alumina particles themselves have high hardness, and thus have high polishing ability. The ceramic fiber abrasive of the present invention is a high-performance abrasive that has a high polishing ability and can be applied in a wide range from rough cutting to precision polishing by appropriately adjusting the particle size or fiber diameter of α-alumina particles.
【０００７】[0007]
【実施例】以下、実施例により本発明をさらに具体的に
説明する。 （実施例１）スラリ−法で製造したアルミナ純度９９．
５％で、結晶平均粒子径０．２μｍの多結晶アルミナよ
りなる繊維径１０μｍのアルミナ長繊維を、長さ１ｍｍ
にカットし、チョップドファイバ−とした。このチョッ
プドファイバ−をナイロン製の不織布に、不織布１ｃｍ
2当り０．２ｇの割合でエポキシ樹脂と共に接着させ、
研磨布を得た。この研磨布を用いて、表面粗さＲav４．
２μｍ、Ｒmax２１μｍのアルミニウム板を研磨したと
ころ表面粗さＲav０．２０μｍ、Ｒmax１．２μｍの研
磨面が得られた。The present invention will be described in more detail with reference to the following examples. (Example 1) Purity of alumina produced by slurry method 99.
5%, alumina long fibers with a fiber diameter of 10 μm made of polycrystalline alumina with a crystal average particle size of 0.2 μm were
It was cut into a chopped fiber. This chopped fiber is made of nylon non-woven fabric, 1 cm non-woven fabric
Adhesive with epoxy resin at a rate of 0.2 g per 2
A polishing cloth was obtained. Using this polishing cloth, the surface roughness Rav4.
When an aluminum plate with 2 μm and Rmax of 21 μm was polished, a polished surface with surface roughness Rav of 0.20 μm and Rmax of 1.2 μm was obtained.
【０００８】（実施例２）スラリ−法で製造したアルミ
ナ純度９９．５％で、結晶粒子径１〜３μｍの多結晶ア
ルミナからなる繊維径５０μｍのアルミナ長繊維を一方
向に並べ、エポキシ樹脂を用いて、厚さ１５０μｍ、繊
維の体積率５５％のＵＤシ−トを形成した。このＵＤシ
−トを紙に接着させて研磨紙を作製し、この研磨紙を用
いて、表面粗さＲav１８μｍ、Ｒmax４２μｍの鉄板の
表面を研磨した。その結果、表面粗さＲav０．９２μ
ｍ、Ｒmax３．０μｍの研磨面が得られた。(Example 2) Alumina filaments having a fiber diameter of 50 μm and made of poly-crystalline alumina having a crystal particle diameter of 1 to 3 μm and having an alumina purity of 99.5% produced by a slurry method were arranged in one direction, and an epoxy resin was used. A UD sheet having a thickness of 150 μm and a fiber volume ratio of 55% was formed. This UD sheet was adhered to paper to prepare polishing paper, and the surface of an iron plate having a surface roughness Rav of 18 μm and Rmax of 42 μm was polished using this polishing paper. As a result, the surface roughness Rav 0.92μ
A polished surface having m and Rmax of 3.0 μm was obtained.
【０００９】（実施例３）スラリ−法で製造したアルミ
ナ純度９５％でマグネシアを５％含み、繊維径１３μ
ｍ、結晶平均粒子径０．１μｍの多結晶繊維からなる繊
維径１３μｍのセラミック繊維を一方向に並べ、エポキ
シ樹脂を用いて、厚さ１１０μｍ、繊維の体積率６０％
のＵＤシ−トを形成した。このＵＤシ−トを交互に角度
を変えて積層後硬化し、厚さ１．３ｍｍ、幅１０ｍｍ、
長さ１００ｍｍの棒状砥石を作製した。この砥石を用い
て、表面粗さＲav４．８μｍ、Ｒmax１５μｍの高速度
鋼（ＳＫＤ４５）の研磨を行った。その結果本砥石によ
って研磨した表面の表面粗さは、Ｒav０．５１μｍ、Ｒ
max１．８μｍであった。(Example 3) Alumina produced by the slurry method has a purity of 95%, contains 5% of magnesia, and has a fiber diameter of 13 μm.
m, ceramic fibers having a fiber diameter of 13 μm, which are made of polycrystalline fibers having a crystal average particle diameter of 0.1 μm, are arranged in one direction, and using an epoxy resin, a thickness of 110 μm and a fiber volume ratio of 60%.
UD sheet was formed. The UD sheet was laminated and cured by alternately changing the angle, and the thickness was 1.3 mm and the width was 10 mm.
A rod-shaped grindstone having a length of 100 mm was produced. Using this grindstone, high speed steel (SKD45) having a surface roughness Rav of 4.8 μm and Rmax of 15 μm was polished. As a result, the surface roughness of the surface polished by the main grindstone was Rav 0.51 μm, R
The maximum was 1.8 μm.
【００１０】（実施例４）実施例１で用いたアルミナ繊
維２０００本からなるフィラメント糸をナイロン樹脂
（ナイロン６１２）でコ−テイングし、直径０．７ｍｍ
の連続長繊維状の砥石を作製した。得られた砥石は可撓
性のあるものであった。この研磨用長繊維砥石を長さ１
００ｍｍにカットし二つ折りにしたもの５０００本を、
直径５０ｍｍφ、長さ１００ｍｍのロ−ラ−に繊維の断
面を同心円周面に揃え治具で固定させて研磨ブラシを作
製し、回転数２０００ｒｐｍにて５分間、表面粗さＲav
１８μｍ、Ｒmax４２μｍの鉄板の表面研磨を行った。
その結果鉄板の表面は研磨され表面粗さＲav０．２５μ
ｍ、Ｒmax０．９２μｍの研磨面が得られた。(Example 4) The filament yarn made of 2000 alumina fibers used in Example 1 was coated with a nylon resin (nylon 612) to have a diameter of 0.7 mm.
A continuous long-fiber grindstone was produced. The obtained whetstone was flexible. Use this long fiber grindstone for polishing to length 1
5000 pieces cut to 00 mm and folded in half,
A polishing brush is produced by fixing the cross section of the fiber to a concentric circumferential surface on a roller having a diameter of 50 mmφ and a length of 100 mm with a jig, and a surface roughness Rav at a rotation speed of 2000 rpm for 5 minutes.
The surface of an iron plate of 18 μm and Rmax of 42 μm was polished.
As a result, the surface of the iron plate was polished and the surface roughness was Rav 0.25μ.
A polished surface having m and Rmax of 0.92 μm was obtained.
【００１１】（比較例１）原料繊維として、アルミナ８
０％及びシリカ２０％を含有し、結晶粒子径０．００５
μｍ（測定限界）以下のδ−Ａｌ2Ｏ3及び無定形ＳｉＯ
2を主成分とする繊維径１０μｍのアルミナ−シリカ長
繊維を用いた以外は、実施例１と同様にして研磨布を作
製した。この研磨布を用いて、表面粗さＲav４．２μ
ｍ、Ｒmax２１μｍのアルミニウム板を研磨したところ
表面粗さＲav１．６μｍ、Ｒmax６．１μｍの研磨面が
得られた。(Comparative Example 1) Alumina 8 was used as a raw material fiber.
Contains 0% and 20% silica, and has a crystal grain size of 0.005.
δ-Al2O3 and amorphous SiO below μm (measurement limit)
A polishing cloth was produced in the same manner as in Example 1 except that alumina-silica long fibers containing 2 as a main component and having a fiber diameter of 10 μm were used. Using this polishing cloth, surface roughness Rav 4.2μ
When an aluminum plate having m and Rmax of 21 μm was polished, a polished surface having surface roughness Rav of 1.6 μm and Rmax of 6.1 μm was obtained.
【００１２】（比較例２）原料繊維として、アルミナ８
５％及びシリカ１５％を含有し、結晶粒子径０．００５
μｍ（測定限界）以下のγ−Ａｌ2Ｏ3及び無定形ＳｉＯ
2を主成分とする繊維径１５μｍのアルミナ−シリカ長
繊維を用いた以外は、実施例２と同様にしてＵＤシ−ト
形成し、これを紙に接着させて研磨紙を作製し、この研
磨紙を用いて鉄板の表面を研磨した。しかし、研磨効果
は全く認められなかった。(Comparative Example 2) Alumina 8 was used as a raw material fiber.
Containing 5% and 15% silica, crystal grain size 0.005
γ-Al 2 O 3 below μm (measurement limit) and amorphous SiO
A UD sheet was formed in the same manner as in Example 2 except that alumina-silica long fibers containing 2 as a main component and having a fiber diameter of 15 μm were used, and the UD sheet was adhered to a paper to prepare an abrasive paper, which was polished. The surface of the iron plate was polished with paper. However, no polishing effect was observed.
【００１３】（比較例３）原料繊維として、アルミナ６
２％、シリカ２４％及びボロニア１４％を含有し、結晶
粒子径０．０１μｍの９Ａｌ2Ｏ3２Ｂ2Ｏ3及び無定形Ｓ
ｉＯ2を主成分とする繊維径１２μｍのアルミナ−シリ
カ−ボロニア長繊維を用いた以外は、実施例３と同様に
してＵＤシ−トの棒状砥石を作製した。この砥石を用い
て、表面粗さＲav４．８μｍ、Ｒmax１５μｍの高速度
鋼（ＳＫＤ４５）の研磨を行った。その結果本砥石によ
って研磨した表面の表面粗さは、Ｒav２．５μｍ、Ｒma
x１５μｍであった。(Comparative Example 3) Alumina 6 was used as the raw material fiber.
2%, silica 24% and boronia 14%, 9Al 2 O 3 2B 2 O 3 having a crystal grain size of 0.01 μm and amorphous S
A UD sheet rod-shaped grindstone was produced in the same manner as in Example 3 except that alumina-silica-boronia long fibers having a fiber diameter of 12 μm and containing iO 2 as a main component were used. Using this grindstone, high speed steel (SKD45) having a surface roughness Rav of 4.8 μm and Rmax of 15 μm was polished. As a result, the surface roughness of the surface polished by the main grindstone was Rav 2.5 μm, Rma
x15 μm.
【００１４】[0014]
【発明の効果】本発明の多結晶セラミック繊維を研磨成
分として含有する研磨材は、従来のアモルファス繊維又
は低結晶性繊維では製造できなかった、繊維の全表面が
研磨能を有する研磨材であり、さらに繊維の使用形態を
変えたり、α−アルミナ結晶の粒子径や繊維径を変える
ことによって仕上げ研磨から粗研磨までの広い範囲にわ
たって適用可能な研磨材である。The abrasive containing the polycrystalline ceramic fiber of the present invention as an abrasive component is an abrasive having a polishing ability on the entire surface of the fiber which could not be produced by the conventional amorphous fiber or low crystalline fiber. Further, it is an abrasive that can be applied in a wide range from final polishing to rough polishing by changing the usage form of fibers or changing the particle size and fiber size of α-alumina crystals.
Claims (1)
ナ結晶粒子で構成された多結晶アルミナ質セラミック繊
維を研磨成分として含有することを特徴とするセラミッ
ク繊維研磨材1. A ceramic fiber polishing material comprising a polycrystalline alumina ceramic fiber composed of α-alumina crystal particles having a particle size of 0.02 μm or more as a polishing component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11074391A JPH05320623A (en) | 1991-04-17 | 1991-04-17 | Ceramic fiber abrasive material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11074391A JPH05320623A (en) | 1991-04-17 | 1991-04-17 | Ceramic fiber abrasive material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05320623A true JPH05320623A (en) | 1993-12-03 |
Family
ID=14543408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11074391A Pending JPH05320623A (en) | 1991-04-17 | 1991-04-17 | Ceramic fiber abrasive material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05320623A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000263447A (en) * | 1999-01-14 | 2000-09-26 | Taimei Chemicals Co Ltd | Abrasive |
| EP1084998A1 (en) * | 1999-09-20 | 2001-03-21 | Pem Abrasifs-Refractaires | Ceramic fibers for reinforcing refractory materials |
| WO2016109728A1 (en) | 2014-12-30 | 2016-07-07 | Saint-Gobain Abrasives, Inc. | Abrasive articles and methods for forming same |
-
1991
- 1991-04-17 JP JP11074391A patent/JPH05320623A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000263447A (en) * | 1999-01-14 | 2000-09-26 | Taimei Chemicals Co Ltd | Abrasive |
| EP1084998A1 (en) * | 1999-09-20 | 2001-03-21 | Pem Abrasifs-Refractaires | Ceramic fibers for reinforcing refractory materials |
| FR2798653A1 (en) * | 1999-09-20 | 2001-03-23 | Pem Abrasifs Refractaires | CERAMIC FIBERS FOR REINFORCING REFRACTORY MATERIALS |
| US6649552B1 (en) | 1999-09-20 | 2003-11-18 | Pem Abrasifs Refractaires | Ceramic fibers for the reinforcement of refractory materials |
| WO2016109728A1 (en) | 2014-12-30 | 2016-07-07 | Saint-Gobain Abrasives, Inc. | Abrasive articles and methods for forming same |
| JP2018508368A (en) * | 2014-12-30 | 2018-03-29 | サンーゴバン アブレイシブズ，インコーポレイティド | Abrasive article and method of forming the same |
| EP3240655B1 (en) | 2014-12-30 | 2022-09-28 | Saint-Gobain Abrasives, Inc. | Abrasive articles and methods for forming same |
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