JPS58177270A - Grinding material - Google Patents

Abstract

PURPOSE:To obtain a proper grinding material for electrolytic grinding by fixating the adhesive or paint which is made of synthetic resin and into which the powder of titanium carbide or titanium nitride is mixed, onto a substrate in a belt form etc., thus providing said substrate with the electric conductivity and grinding performance. CONSTITUTION:In order to obtain a grinding material used for electrolytic grinding, the adhesive or paint which is made of synthetic resin and in which the powder made of either titanium carbide or titanium nitride is mixed, is fixated onto a substrate which is made of woven fabric or synthetic resin etc. and in the form of a belt, thus providing said material with the electric conductivity and the polishing performance. The synthetic resin materials belonging to epoxy, phenol series, etc. are mixed with hardening agent if necessary and used as the above-mentioned adhesive or paint. As an example, titanium carbide 1 having a diameter of 0.3mum is mixed into the epoxy resin series adhesive 2 in 5% by volume, and said mixture is applied in a thickness of 10-30mum onto a substrate to manufacture a belt-form polishing material. When NO.304 stainless-steel is ground as an example, a grinding speed of 12mm.<3>/min was obtained, and the amount of consumption of polishing material was 5mm.<3>/min.

Description

【発明の詳細な説明】 本発明は、ワイヤ状、棒状、先端が適宜工具形状の棒状
体、ベルト状、円板状、ペーパー状等種々の基材に研削
用粒子を固着することにより構成される研削体に係り、
特に電解研削に用いるに好適なものに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is constructed by fixing grinding particles to various base materials such as a wire shape, a rod shape, a rod shape with an appropriately tool-shaped tip, a belt shape, a disk shape, and a paper shape. Regarding the grinding body,
In particular, it relates to something suitable for use in electrolytic grinding.

電解研削加工は、電解加工作用と機械的研削作用との両
件用によって工作物を加工するものであり、その加工用
具電極としては回転ホイール形状の金属材や各種砥石材
等の表面に所定の微小長さだけ突出するようにダイヤモ
ンド粒またはカーボランダム等の電気絶縁性砥粒を埋設
したり、捷だ電着して固着したいわゆるメタルボンド砥
石が用いられているが、該メタルボンド砥石は砥粒の摩
耗によって被研削体と研削体である電極の導電面との間
の間隙が次第に小さく々シ、使用に伴なって研削特性が
変化するという欠点がある。かかる欠点を除去しうるも
のとして、研削材としての砥粒と、金属粉や炭素粉で力
る導電剤とを混入した合成樹脂材を基材に接着等の手段
で固着したものがあるが、砥粒以外に金属粉または炭素
粉を多量に混入しているので、合成樹脂中の粉粒の体積
率が大きく、このだめに脆化しやすいという欠点がある
。まだ、硬度の小さい金属粉等の量を増やして導電性を
確保しようとすれば、研削体が摩耗しやすく、寿命が短
かくなり、反対に砥粒の量を増やして長寿命化を図ると
所望の導電性を確保することができないという欠点があ
る。Electrolytic grinding processes a workpiece using both electrolytic processing action and mechanical grinding action, and the processing tool electrode is a metal material in the shape of a rotating wheel or various types of grinding stones, etc., with a predetermined grinding surface on the surface. So-called metal bonded grinding wheels are used in which electrically insulating abrasive grains such as diamond grains or carborundum are buried so as to protrude by a minute length, or are fixed by thin electrodeposition. There is a drawback that the gap between the object to be ground and the conductive surface of the electrode, which is the object to be ground, gradually becomes smaller due to wear of the grains, and the grinding characteristics change with use. As a method that can eliminate such defects, there is a method in which a synthetic resin material mixed with abrasive grains as an abrasive material and a conductive agent made of metal powder or carbon powder is fixed to a base material by means such as adhesive. Since a large amount of metal powder or carbon powder is mixed in addition to the abrasive grains, the volume ratio of the powder particles in the synthetic resin is large, which has the disadvantage that it tends to become brittle. However, if you try to increase the amount of metal powder etc. with low hardness to ensure conductivity, the grinding body will be prone to wear and the life will be shortened. There is a drawback that desired conductivity cannot be ensured.

本発明は、このような欠点を除去することを主目的とし
て々されたものであわ、その特徴とするところは、合成
樹脂材料でなる接着剤または塗料中に炭化チタンと窒化
チタンの粉末の少なくともいずれか一方を混入したもの
を基材に固着して導電性と研削性とを持たせたことを特
徴とする。The present invention has been developed with the main purpose of eliminating these drawbacks, and is characterized by the addition of at least titanium carbide and titanium nitride powders to adhesives or paints made of synthetic resin materials. It is characterized in that it has conductivity and grindability by adhering a mixture of either one to the base material.

本発明において用いられる基材としては、織布や合成樹
脂等でなるベルト状、ペーパー状、円板状、シリンダ状
の基材や、金属、合金及び各種セラミック基材から成る
各種形状体がある。まだ、接着剤あるいは塗料としては
、エポキシ系、フェノール系、イミド系、クロライド合
成ゴム系等の合成樹脂材料が、必要に応じてこれらに硬
化剤を混合して用いられる。本発明にて用いられる窒化
チタン（ＴｉＮ）または炭化チタン（ＴｉＣ’）は、比
抵抗がそれぞれ２２〜１３０μΩ・傷、７０〜１７３μ
Ω・Ｃ１Ｎであって、銅、ニッケル、鉄、或いは銀等の
金属、合金に比べて大であるが、炭素に比べて約２０分
の１ないし２００分の１程度であるから、導電剤として
十分に使用でき、まだビッカース硬度はＴｉＮが１８０
０〜２１００／ｃｇ／−１ＴｉＣが２９００〜３２００
ｋｑ／−程度であって、上記の如き通常の金属や炭素に
比べて極めて硬度が犬で、通常の砥粒である炭化珪素（
ＳａＣ）と同等に近いものである。従って、Ｔｉｃ、Ｔ
ｉＮはこれだけで導電性と研削性の双方を持たせること
ができるから、これを合成樹脂でなる接着剤や塗料中に
混入して基材に塗布固着し固化させれば、接着剤層等の
中の粉粒成分の体積率が少なくてすみ、脆さのない強度
の大なる研削体を実現できる。The substrates used in the present invention include belt-shaped, paper-shaped, disk-shaped, and cylindrical substrates made of woven fabric, synthetic resin, etc., and various shaped bodies made of metal, alloy, and various ceramic substrates. . As adhesives or paints, synthetic resin materials such as epoxy, phenol, imide, and chloride synthetic rubbers are used, with a curing agent mixed therein as required. Titanium nitride (TiN) or titanium carbide (TiC') used in the present invention has a specific resistance of 22 to 130 μΩ・scratch and 70 to 173 μΩ, respectively.
Ω・C1N, which is larger than metals and alloys such as copper, nickel, iron, or silver, but is about 1/20 to 1/200 of carbon, so it can be used as a conductive agent. TiN is fully usable and still has a Vickers hardness of 180.
0-2100/cg/-1TiC is 2900-3200
kq/-, which is extremely hard compared to the above-mentioned ordinary metals and carbon.
SaC). Therefore, Tic, T
iN alone can provide both electrical conductivity and abrasive properties, so if it is mixed into a synthetic resin adhesive or paint and applied to the base material and solidified, it can be used to form adhesive layers, etc. The volume ratio of the powder component inside can be reduced, and a grinding body with high strength and no brittleness can be realized.

さらに、必要に応じて、砥粒としてダイヤモンド、キー
−ビック窒化ホウ素（ＣＢＮ）、炭化ケイ素（ＳｉＣ）
、アルミナ（Ａ６０３）、酸化ジルコニウム（Ｚｒ０２
）等、硬度の大きな砥粒を粒径及び量等を考慮して混合
することにより、より耐摩耗性、強度の勝れた研削体を
実現することができる。また、同様に導電性増大のため
に銅、ニッケル、銀、亜鉛、錫等、またはそれ等の含金
の微粉末を適宜の量混合することができ、少量の添加で
全体として所定の導電性を持たせることができる。Furthermore, if necessary, diamond, K-Vic boron nitride (CBN), silicon carbide (SiC) can be used as abrasive grains.
, alumina (A603), zirconium oxide (Zr02
) etc., by mixing abrasive grains with large hardness in consideration of grain size, amount, etc., it is possible to realize a grinding body with better wear resistance and strength. Similarly, in order to increase conductivity, an appropriate amount of copper, nickel, silver, zinc, tin, or other metal-containing fine powder can be mixed, and with the addition of a small amount, the overall desired conductivity can be achieved. can have.

実施例どして、図面に示すように、約０．３μｍ厚に塗
着することによりベルト研削体を製作し、Ｎｏ、３０４
のステンレスを研削体速度２０　ｍ　／　ｓｅｅで２１
７ｋｇ／ｃａの圧力を加えて研削した所、１２ｔｔｔｙ
ｔＰ　／　ｍ　ｉ　ｎ　　の研削速度が得られ、研削体
の消耗量は５　ｒｌｆＩＰ／　ｍ　ｉ　ｎ　　であった
。また同様の材料を用い、レーザを用いて急速硬化した
ものにおいては、３２　ｒｒｕｔＰ／　ｍｉ　ｎ　　の
研削速度が得られ、研削体の消耗量は２．３７１１ｊｌ
Ｐ／　ｍ　ｉ　ｎ　　であった。まだ、０．６μｍφの
ＴｉＣを体積比６チ混入したものにおいては、研削速度
は１８　ｒｔｔｙｔＰ／　ｍｉ　ｎ　　、研削体消耗量
は３ｍ／ｍｉｎ　　であった。さらに、前記レーザーを
用いて急速硬化を行ったものにおいて、炭酸ソーダ（Ｎ
ａ２ＣＯｓ　）の５チ水溶液を用い電解を加えて研削を
行った場合は、研削速度は４３　ｒａｎ’　／　ｍｉ　
ｎ　となり、研削体消耗量は１．２７１Ｚ７ｆｌ／　ｍ
　ｉ　ｎ　　となった。As an example, as shown in the drawing, a belt grinding body was manufactured by applying coating to a thickness of about 0.3 μm, and No. 304
Grinding stainless steel at a speed of 20 m/see 21
12ttty when ground by applying pressure of 7kg/ca
A grinding speed of tP/min was obtained, and the wear amount of the grinding body was 5 rlfIP/min. In addition, when the same material was used and rapidly hardened using a laser, a grinding speed of 32 rrutP/min was obtained, and the amount of wear of the grinding body was 2.3711 jl.
It was P/min. However, in the case where TiC of 0.6 μmφ was mixed at a volume ratio of 6 cm, the grinding speed was 18 rttytP/min, and the amount of wear of the grinding body was 3 m/min. Furthermore, in the rapid curing using the laser, soda carbonate (N
When grinding was performed using a 5T aqueous solution of a2COs) and adding electrolysis, the grinding speed was 43 ran'/mi.
n, and the grinding body consumption is 1.271Z7fl/m
It became in.

以上のような粉末の混入量と研削速度に対する研削体消
耗量は、従来の金属粉等を用いた研削体に比べて著るし
く小さいものである。ＴｉＣ及びＴｉＮの使用粒子の大
きさとしては、導電性増大のためには数μｍφ前後以下
の微粒子を用いことが好ましく、他方研削能としては、
特別な微細超仕上げ等の研摩研削でない以上、通常少く
とも数μｍφ前後以上、７〜８乃至５０〜６０μｍφ前
後のものが好ましく、従って研削用と導電性付与用の２
種類の粒度又は含有粒子の粒度が例えば５〜６０μｍφ
に及ぶものとか、金属、合金粉を一部添加したＴｔＣ等
を体積比で８０％以下混合するのが良く、之を１０〜１
００μｍの厚さに塗着して使用する。The amount of grinding body consumption with respect to the amount of powder mixed in and the grinding speed as described above is significantly smaller than that of conventional grinding bodies using metal powder or the like. Regarding the size of the TiC and TiN particles used, it is preferable to use fine particles with a diameter of around several μm or less in order to increase the conductivity, and on the other hand, as for the grinding ability,
As long as it is not abrasive grinding such as special fine super finishing, it is usually at least around several μmφ or more, preferably around 7 to 8 to 50 to 60 μmφ.
The particle size of the type or the particle size of the contained particles is, for example, 5 to 60 μmφ
It is best to mix up to 80% by volume of TtC, etc. with some addition of metal or alloy powder.
It is used by applying it to a thickness of 00 μm.

このように、本発明によれば、少なくともＴｉＮ、Ｔｉ
Ｃのいずれかを導電剤兼研磨材として用いるものである
から、粉末の混入量すなわち体積率が少なくてすみ、こ
れにより脆化が防止され、耐摩耗性が大きくなり、寿命
の長い研削体を提供することが可能となる。Thus, according to the present invention, at least TiN, Ti
Since either C is used as a conductive agent and an abrasive, the amount of powder mixed in, that is, the volume ratio, can be reduced, which prevents embrittlement, increases wear resistance, and provides a long-life abrasive body. It becomes possible to provide

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施例であるベルト研削体を示す断面
図である。 ■・・・基材、２・・・合成樹脂層、３・・ＴｉＮ、’
ｐｉＣ特許出願人　株式会社　井上ジャパックス研究所
代理人　弁理士　若　１）勝　− （７） ３８５−The drawing is a sectional view showing a belt grinding body which is an embodiment of the present invention. ■...Base material, 2...Synthetic resin layer, 3...TiN,'
piC patent applicant Inoue Japax Institute Co., Ltd. Representative Patent attorney Waka 1) Katsu - (7) 385-

Claims (1)

【特許請求の範囲】 １、合成樹脂材料でなる接着剤まだは塗料中に炭化チタ
ンと窒化チタンの少なくともいずれか一方の粉末を混入
したものを基材に固着して導電性と研削性とを持たせた
ことを特徴とする研削体。 ２　前記接着剤または塗料中が、上記炭化チタンと窒化
チタンの少くともいずれか一方の粉末の外に砥粒を含有
するものであることを特徴とする特許請求の範囲第１項
記載の研削体。 ３、前記接着剤まだは塗料が、金属、合金、及び炭素の
粉末の１種以上を含む導電性接着剤または塗料であるこ
とを特徴とする特許請求の範囲第１項又は第２項の何れ
かに記載の研削体。[Claims] 1. An adhesive made of a synthetic resin material, or a paint containing powder of at least one of titanium carbide and titanium nitride, is fixed to the base material to provide electrical conductivity and grindability. A grinding body characterized by having 2. The grinding body according to claim 1, wherein the adhesive or paint contains abrasive grains in addition to the powder of at least one of titanium carbide and titanium nitride. . 3. Either of claims 1 or 2, wherein the adhesive or paint is a conductive adhesive or paint containing one or more of metal, alloy, and carbon powder. Grinding body described in Crab.