JP2578634B2 - Grinding oil composition for ceramics - Google Patents
Grinding oil composition for ceramicsInfo
- Publication number
- JP2578634B2 JP2578634B2 JP63048898A JP4889888A JP2578634B2 JP 2578634 B2 JP2578634 B2 JP 2578634B2 JP 63048898 A JP63048898 A JP 63048898A JP 4889888 A JP4889888 A JP 4889888A JP 2578634 B2 JP2578634 B2 JP 2578634B2
- Authority
- JP
- Japan
- Prior art keywords
- grinding oil
- ceramics
- grinding
- oil composition
- coagulant
- 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
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Lubricants (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、セラミックス用研削油剤組成物に関するも
のである。Description: TECHNICAL FIELD The present invention relates to a grinding oil composition for ceramics.
［従来の技術］ 近来、セラミックスは新素材の代表的なものとして注
目され機能性材料、IC基板、構造用材料など、その用途
が急速に拡大している。しかし、セラミックスは焼結成
形して得られるため部材の寸法精度が悪く、機械加工す
なわち研削加工を余儀なくされている。その研削加工に
使用される研削油剤は、安全性、作業性などの面から水
溶性研削油剤が主に使用されるようになってきた。その
水溶性研削油剤は、従来、金属を被削材の対象としてき
たため、切屑が混入しても、マグネット方式や沈殿方式
によって容易に除去することが可能であった。よって、
通常循環使用する場合において、切削による研削性能の
著しい低下などの問題は生じなかった。[Prior Art] In recent years, ceramics have attracted attention as a representative of new materials, and their applications, such as functional materials, IC substrates, and structural materials, have been rapidly expanding. However, since the ceramics are obtained by sintering, the dimensional accuracy of the members is poor, and the machining, that is, the grinding is inevitable. As the grinding oil used for the grinding, a water-soluble grinding oil has been mainly used from the viewpoint of safety, workability, and the like. Since the water-soluble grinding oil has conventionally been made of metal as a work material, even if chips are mixed, it can be easily removed by a magnet method or a precipitation method. Therefore,
In the case of normal circulation use, there was no problem such as remarkable decrease in grinding performance due to cutting.
「潤滑」第29巻７号491〜494ページ（1984）による
と、金属研削において砥石の砥粒粉や油分、金属切屑な
どの排除を目的として、凝集剤による凝集加圧浮上法を
提案しているが、切屑の除去としては前記のマゲネット
方式などによって容易に分離できることから、切屑の除
去を目的とした化学的処理方法は実用化されていないの
が実状である。また、セラミックス切屑除去を目的とし
た方式として、ペーパーフィルター方式や遠心分離方式
があるが、実用的に微小粒径の除去を行う有効な方式の
ものは、いまだ見いだされていないのが現状である。According to "Lubrication" Vol. 29, No. 7, pp. 491-494 (1984), a coagulation pressure flotation method using a coagulant has been proposed for the purpose of removing abrasive grains, oil, metal chips, etc. of grinding wheels in metal grinding. However, since the chips can be easily removed by the above-mentioned magenet method or the like, a chemical treatment method for the purpose of removing chips has not been put to practical use. In addition, as a method for removing ceramic chips, there are a paper filter method and a centrifugal separation method, but an effective method that practically removes fine particle diameter has not yet been found. .
［発明が解決しようとする問題点］ 本発明は、上記、従来の切屑除去方式の有していた問
題点、即ち、セラミックスを被削材とした場合には、非
磁性体で微細な切削という特徴から、遠心分離方式やペ
ーパーフィルター方式での除去法が標準装置とされてい
るが、除去できる混入粒径には限界があり、完全に除去
できなかったり、すぐにフィルターが目詰まりして、継
続した加工ができないなどの、ろ過技術の問題を解決
し、セラミックス切屑による加工物の表面に生じるキズ
を防止させ、かつ切屑による工作機械の摩耗を、防ぐこ
とができるすぐれた研削油材組成物を提供することを目
的とする。[Problems to be Solved by the Invention] The present invention has the above-mentioned problems of the conventional chip removal method, that is, when ceramics are used as a work material, non-magnetic material is finely cut. Due to its features, the standard method is the removal method using a centrifugal separation method or a paper filter method.However, there is a limit to the particle size that can be removed, and it cannot be completely removed or the filter is clogged immediately. An excellent grinding oil composition that solves the problems of filtration technology, such as the inability to continue machining, prevents scratches on the surface of the workpiece due to ceramic chips, and prevents wear of machine tools due to chips. The purpose is to provide.
［問題点を解決するための手段］ 本発明者らは、このような問題を鑑み鋭意研究した結
果、水溶性研削油剤にカチオン系の凝集剤を添加するこ
とにより、セラミックスの切屑を粗大化し、従来難しい
とされてきたフィルター方式で容易に除去分離できるこ
とを見出し本発明に至った。[Means for Solving the Problems] The present inventors have conducted intensive studies in view of such problems, and as a result, by adding a cationic coagulant to a water-soluble grinding oil, coarsening chips of ceramics, The present inventor has found that it can be easily removed and separated by a filter method which has conventionally been considered difficult, and has led to the present invention.
［作用］ 即ち、研削油剤中に混入したセラミックス粉は負に帯
電し、お互い反発しながら懸濁状態を維持しており、そ
こで、これら荷電セラミックス粉に対し、中和凝集させ
るカチオン系凝集剤を添加し、大きなフロックを形成さ
せてやればペーパーフィルター方式によっても十分除去
できる。[Effect] That is, the ceramic powder mixed in the grinding oil is negatively charged and maintains a suspended state while repelling each other. Therefore, a cationic coagulant for neutralizing and coagulating these charged ceramic powders is used. If added to form a large floc, it can be sufficiently removed even by a paper filter method.
ここでいう水溶性切削油剤とは、JISで規定されたW1
種のエマルジョンタイプとW2種のソリューブルタイプで
あり、通常水で希釈してセラミックスの研削に使用され
るものである。The water-soluble cutting fluid referred to here is W1 specified in JIS.
There are two types of emulsion type and W2 type of soluble type, usually diluted with water and used for grinding ceramics.
カチオン系凝集剤としては、ポリメタクリル酸エステ
ル系、ポリアクリルアミド系、ポリアミン系、ジシアン
ジアミド系などがあり、一般には、カチオンモノマーと
アクリルアミドとを共重合させたホモポリマーである。
これらは、カチオンモノマーの比率によって高中低のい
ずれかのカチオン系に分類される。作用においては、カ
チオン種による電荷の中和作用、すなわち凝結作用と高
分子の持つ架橋吸着作用、すなわち凝集作用に分類さ
れ、この二つの作用により、大きなフロックを形成させ
る。Examples of the cationic coagulant include polymethacrylic acid ester type, polyacrylamide type, polyamine type, dicyandiamide type and the like, and are generally a homopolymer obtained by copolymerizing a cationic monomer and acrylamide.
These are classified as either high, medium or low cationic systems depending on the ratio of cationic monomers. The action is classified into a charge neutralizing action by the cationic species, that is, a flocculation action and a cross-linking and adsorbing action of the polymer, that is, a flocculation action, and a large floc is formed by these two actions.
本発明の添加凝集剤としては、カチオン系の中でも、
低カチオンもしくは中カチオンタイプのものが望まし
く、研削油剤中に0.025〜2.5％好ましくは、0.05〜0.4
％の添加でよく、また水で希釈した使用時の研削油剤で
あれば、５〜500ppm好ましくは、10〜80ppmの低濃度の
添加で充分にその効果を発揮する。As the additive coagulant of the present invention, among cationic systems,
A low cation or medium cation type is desirable, and 0.025 to 2.5% in a grinding oil is preferably 0.05 to 0.4%.
%, And in the case of a grinding oil at the time of use diluted with water, the effect is sufficiently exerted by addition of a low concentration of 5 to 500 ppm, preferably 10 to 80 ppm.
通常、循環して使用される場合、凝集処理を行ってゆ
くことによって経済的に凝集剤も消費させられるので、
途中で継続的もしくは連続的に添加することもできる。
また凝集剤を添加することにより、防錆性能など他への
悪影響を与えることはない。Usually, when used in circulation, the flocculant is economically consumed by performing the flocculation treatment.
It can be added continuously or continuously in the middle.
The addition of the coagulant does not adversely affect other factors such as rust prevention performance.
［実施例］ 実施例１ 水溶性研削油剤W2−１号（ユシロ化学社製）を水で50
倍に希釈し、200mlのビーカーに100ml取り、各種カチオ
ン系凝集剤を33ppm添加し、＃3000のSiCを0.5重量パー
セント混入してマグネットスターラーで攪はんし、２分
後のフロックの生成状態を目視で観察した。その液を10
0mlのメスシリンダーに移し、５分後の沈降速度として
沈降率、すなわち沈降した際の容量パーセントを測定し
た。[Example] Example 1 Water-soluble grinding oil W2-1 (manufactured by Yushiro Chemical Co., Ltd.)
Dilute 100 times, take 100 ml into a 200 ml beaker, add 33 ppm of various cationic coagulants, mix 0.5% by weight of # 3000 SiC, stir with a magnetic stirrer, and check the state of floc formation after 2 minutes. Observed visually. 10
After transferring to a 0 ml measuring cylinder, the sedimentation rate, that is, the volume percentage at the time of sedimentation was measured as the sedimentation speed after 5 minutes.
それぞれの結果は、次の表に示す。 The results are shown in the following table.
実施例２ 実施例１で良好であった低カチオン系凝集剤であるＣ
−104を、水で50倍に希釈したW2−１号に対して33ppm添
加した研削油剤と、凝集剤無添加の通常の研削油剤の各
々30リットルを用い、SiC＃3000をあらかじめ200g入
れ、実際の平面研削盤（PSG−6EA）にタンクを設け、フ
ィルターによりろ過しながら被削材の仕上げ面粗さを比
較した。 Example 2 C, a low cationic coagulant which was good in Example 1
Using 200 liters of SiC # 3000 in advance, using 30 liters each of a grinding oil added 33 ppm to W2-1 diluted 50 times with water and a normal grinding oil without a coagulant A tank was installed on a surface grinder (PSG-6EA), and the finished surface roughness of the work material was compared while filtering with a filter.
研削した場合の研削条件はSD800、切り込み５μｍ、
テーブル速度20m/min、トバース送り15mm/passで行っ
た。被削材としてはSKD11及び超硬合金を用いた。When grinding, the grinding conditions are SD800, depth of cut 5μm,
The test was performed at a table speed of 20 m / min and a traverse feed of 15 mm / pass. SKD11 and cemented carbide were used as work materials.
結果は図面に示す。 The results are shown in the drawing.
［発明の効果］ 本発明のセラミックス用研削油剤組成物によれば、実
施例からわかるとおり、凝集剤を添加することによって
研削油剤中のセラミックス粉末が効率よく分離され、分
離されることによって研削性能も向上する。また、凝集
剤がセラミックス粉末を除去した研削油剤は、セラミッ
クス切屑が加工表面にキズをつけることがなくなるの
で、仕上げ面が向上し、加工品位の高い部品を得ること
ができる。[Effects of the Invention] According to the grinding oil composition for ceramics of the present invention, as can be seen from the examples, the ceramic powder in the grinding oil is efficiently separated by adding a flocculant, and the grinding performance is improved by the separation. Also improve. In addition, the grinding oil from which the coagulant removes the ceramic powder can prevent the ceramic chips from scratching the processing surface, so that the finished surface can be improved and a high-quality part can be obtained.
よって、本発明の研削油剤は、セラミックスの研削を
行う業界において、容易にろ過を行え、研削性能を向上
させるための研削油剤として好適であり、セラミックス
加工を必要とする機械、電子、自動車産業等の幅広い分
野で有効に利用できるものである。Therefore, the grinding oil of the present invention is suitable as a grinding oil for easily filtering and improving the grinding performance in the industry of grinding ceramics, and is suitable for machines requiring ceramic processing, electronics, automobile industry, etc. It can be used effectively in a wide range of fields.
図面は実施例２の結果であり、黒丸は凝集剤無添加、白
丸は凝集剤添加の場合の、SKD11と超硬合金の表面粗さ
を表わす。The drawing shows the results of Example 2. The black circles show the surface roughness of SKD11 and the cemented carbide in the case where no coagulant was added, and the white circles show the case where the coagulant was added.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｃ１０Ｎ 30:00 40:00 (56)参考文献 特開 昭56−92998（ＪＰ，Ａ) 特開 昭56−88483（ＪＰ，Ａ) 特開 昭51−138056（ＪＰ，Ａ)──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical display location // C10N 30:00 40:00 (56) References JP-A-56-92998 (JP, A) JP-A-56-88483 (JP, A) JP-A-51-138056 (JP, A)
Claims (2)
を含有させることを特徴とするセラミックス用研削油剤
組成物。1. A grinding oil composition for ceramics, comprising a cationic coagulant in a water-soluble grinding oil.
を含有させ、浮遊セラミックスの凝集作用を起こさせる
ことを特徴とするセラミックス用研削油剤組成物。2. A grinding oil composition for ceramics, wherein a cationic coagulant is contained in a water-soluble grinding oil to cause a flocculating action of suspended ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63048898A JP2578634B2 (en) | 1988-03-01 | 1988-03-01 | Grinding oil composition for ceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63048898A JP2578634B2 (en) | 1988-03-01 | 1988-03-01 | Grinding oil composition for ceramics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01223198A JPH01223198A (en) | 1989-09-06 |
| JP2578634B2 true JP2578634B2 (en) | 1997-02-05 |
Family
ID=12816086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63048898A Expired - Lifetime JP2578634B2 (en) | 1988-03-01 | 1988-03-01 | Grinding oil composition for ceramics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2578634B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2678699B2 (en) * | 1991-09-19 | 1997-11-17 | 株式会社ナイス・リード | Grinding waste liquid purification method |
| JP2000084567A (en) * | 1998-09-11 | 2000-03-28 | Fuji Heavy Ind Ltd | Treatment of cutting oil-containing waste water |
| JP5482425B2 (en) | 2010-05-12 | 2014-05-07 | 信越化学工業株式会社 | Water-soluble oil for processing rare earth magnets |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3634243A (en) * | 1969-01-09 | 1972-01-11 | Cincinnati Milling Machine Co | Method of removing suspended matter from cutting fluids and cutting oils by addition of cationic surfactants |
| US3948784A (en) * | 1975-03-24 | 1976-04-06 | Nalco Chemical Company | Treatment of industrial grinding and cutting lubricants |
| JPS51138056A (en) * | 1975-05-23 | 1976-11-29 | Nittan Co Ltd | Treating method of oil-containing waste liquor |
| JPS5688483A (en) * | 1979-12-21 | 1981-07-17 | Nippon Shokubai Kagaku Kogyo Co Ltd | Composition used in stone cutting |
-
1988
- 1988-03-01 JP JP63048898A patent/JP2578634B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01223198A (en) | 1989-09-06 |
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