JPS6023932B2 - Electric discharge machining fluid with rust prevention properties - Google Patents
Electric discharge machining fluid with rust prevention propertiesInfo
- Publication number
- JPS6023932B2 JPS6023932B2 JP18584482A JP18584482A JPS6023932B2 JP S6023932 B2 JPS6023932 B2 JP S6023932B2 JP 18584482 A JP18584482 A JP 18584482A JP 18584482 A JP18584482 A JP 18584482A JP S6023932 B2 JPS6023932 B2 JP S6023932B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge machining
- machining fluid
- rust prevention
- lanolin
- electric discharge
- 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
- 239000012530 fluid Substances 0.000 title claims description 10
- 238000003754 machining Methods 0.000 title description 17
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title description 9
- 230000002265 prevention Effects 0.000 title description 6
- 239000004166 Lanolin Substances 0.000 claims description 10
- 229940039717 lanolin Drugs 0.000 claims description 10
- 235000019388 lanolin Nutrition 0.000 claims description 10
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- -1 Polyoxyethylene Polymers 0.000 claims description 5
- 238000009760 electrical discharge machining Methods 0.000 claims description 5
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 150000004665 fatty acids Chemical class 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002736 nonionic surfactant Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000009763 wire-cut EDM Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000124033 Salix Species 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000004148 curcumin Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/08—Working media
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
【発明の詳細な説明】
この発明は放電加工法に用いる防錆性を有する加工液に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a machining fluid having antirust properties for use in electrical discharge machining.
放電加工法には、型電極を用いる放電型彫法と、ワイヤ
−電極を用いるワイヤーカット放電加工法があるが、い
ずれも電気抵抗の大きい加工液中で、加工用電極と被加
工体の間隙に火花放電を行わせて加工を行うものである
。There are two types of electrical discharge machining methods: electrical discharge mold engraving using a die electrode, and wire-cut electrical discharge machining using a wire-electrode. Machining is performed by causing spark discharge to occur.
しかして、加工液の作用は、放電により溶融した被加工
体を冷却し、加工間隙から、その粉末および分解生成物
を除去するにある。従来加工液として、型彫方式では、
発錆を嫌って、パラフィン系炭化水素を主成分とするも
の、ワイヤーカット方式では水が用いられてきた。The function of the machining fluid is to cool the workpiece melted by the electrical discharge and remove its powder and decomposition products from the machining gap. Conventionally, as a machining fluid, in the die-sinking method,
To prevent rusting, products containing paraffinic hydrocarbons as the main component, and water in the wire cut method, have been used.
しかしながら、前者では炭化水素の引火性、可燃性が問
題になり、後者では、被加工体の発錆がその仕上げを困
難にする問題がある。加工液の条件として、電気抵抗が
大きいことが必須であるので、一般に用いられてきた電
離性防錆剤の水溶液は使用不可能で、これに代わる防錆
剤として、低導電性の糖類、多価アルコール、非イオン
界面活性剤を水に添加したものが、特にワイヤーカット
方式用に提案されたが、このうち、糖類、多価アルコー
ル類は防錆力が弱く、また、非イオン界面活性剤の場合
、疎水基と親水基とのバランス、すなわち、日．Ｌ．Ｂ
により防錆効果が一定しない。However, in the former case, there is a problem of flammability and combustibility of the hydrocarbon, and in the latter case, there is a problem in that rusting of the workpiece makes it difficult to finish. Since it is essential for the machining fluid to have high electrical resistance, the generally used aqueous solutions of ionizing rust preventive agents cannot be used. Hydrolic alcohols and nonionic surfactants added to water have been proposed, especially for wire cutting methods, but among these, sugars and polyhydric alcohols have weak rust prevention properties, and nonionic surfactants In the case of , the balance between hydrophobic groups and hydrophilic groups, i.e., L. B
Therefore, the rust prevention effect is not constant.
また、非イオン界面活性剤で特にポリオキシェチレン結
合を含むものは、その水溶液の温度が高くなると溶解し
‘こく〈なり、常温においてもほとんど水に溶解しない
ものがある。したがって、局部的に高温になる放電加工
作業において、非イオン界面活性剤の示す作用は種々多
様で、一義的な効果は期待し得ない。Furthermore, nonionic surfactants, especially those containing polyoxyethylene bonds, dissolve and become thick when the temperature of the aqueous solution rises, and some of them hardly dissolve in water even at room temperature. Therefore, in electric discharge machining operations where local high temperatures occur, the effects of nonionic surfactants vary and no unique effect can be expected.
上記事情にかんがみ、本発明の目的は、電気抵抗が大で
、しかも、防錆性を有する放電加工後を提供することで
ある。In view of the above circumstances, an object of the present invention is to provide a material after electrical discharge machining that has high electrical resistance and rust prevention properties.
そのため、本発明者らは、種々のポリオキシェチレン化
合物を中心に種々研究を行ってきたのであるが、そのう
ちで特にラノリン誘導体が有効であることを知った。Therefore, the present inventors have conducted various studies focusing on various polyoxyethylene compounds, and have found that lanolin derivatives are particularly effective.
ラノリンは水に不落のアルコールと高級脂肪酸の複雑な
ヱステルで、その加水分解生成物について１００王以上
にわたり研究され現在、酸の約８５％とアルコ−ルの約
７５％が固定されている。ラノリンのポリオキシェチレ
ン誘導体として、その脂肪酸とポリエチレングリコール
（エチレンオキシド単位３００〜１０００を含む）と反
応させて作ったェステル型のもの、例えば第一クローダ
ーケミカル株式会社製商品名ＳＬＥ３００、ＳＬＥ６０
０、ＳＬＥＩＯＯ０、分子式Ｒ −ＣＯＯ−（ＣＨ２Ｃ
Ｈ２０）ｄＨ、ｎ＝６〜２３、など、および、ラノリン
のヒドロキシル基１個あたりに１５〜８０分子のエチレ
ンオキシドを付加させて作ったェーナル型のものの２種
類
が知られているが、そのいずれもが効果があった。Lanolin is a complex ester of water-insoluble alcohol and higher fatty acids, and its hydrolysis products have been studied for over 100 years, and currently about 85% of the acid and 75% of the alcohol have been fixed. As polyoxyethylene derivatives of lanolin, ester-type products made by reacting the fatty acid with polyethylene glycol (containing 300 to 1000 ethylene oxide units) are available, such as Dai-ichi Crowder Chemical Co., Ltd. product names SLE300 and SLE60.
0, SLEIOO0, molecular formula R -COO-(CH2C
H20) dH, n = 6 to 23, etc., and two types are known: 15 to 80 molecules of ethylene oxide are added to each hydroxyl group of lanolin. was effective.
次に防錆試験の結果を第１表に示す。Next, the results of the rust prevention test are shown in Table 1.
ただし、試料を溶解する水としては水道水を用い、ＪＩ
ＳＫ２２４鏡鋼を浸潰して６０分間煮沸した後、発錆状
態を肉眼観察でしらべ、水道水の発錆を１００％として
、これに対する％で発錆率を示した。However, tap water should be used as the water for dissolving the sample, and JI
After immersing the SK224 mirror steel and boiling it for 60 minutes, the state of rusting was examined with the naked eye, and the rusting rate was expressed as a percentage of the rusting rate in tap water, which was taken as 100%.
また、煮沸中の銅の発錆状況を観察して発錆までに要す
る時間を示した。この結果から、エーテル型、ェステル
型の両者とも、防錆効果が大きいことがわかる。上記エ
ーテル型のもの（水酸基１個に対しエチレンオキシド７
０分子を反応させたものＩＭ％と、シリコーン系消泡剤
（商品名東芝シリコーンＴＳＡ７３２）０．籾ｔ％を含
む水溶液、および上記ェステル型のものカルボキシル基
１つに対しエチレンオキシド約１００晩ご子を反応させ
たものＩＭ％と前記シリコーン系消泡剤ｏ．細ｔ％を含
む水溶液はいずれも導電率２０〜２５ムＳ／肌の範囲に
あり、これを用いて、ダイス鋼ＳＫＤ−１１をワイヤー
カツト放電加工したとき、１００時間以上発錆せず、ま
た加工も安定し、加工条件、加工材質に対応して最適の
加工液を容易に得ることができた。In addition, the rusting status of copper during boiling was observed and the time required for rusting was shown. From this result, it can be seen that both the ether type and the ester type have a large rust prevention effect. The above ether type (7 ethylene oxides per hydroxyl group)
0 molecules reacted with IM% and a silicone antifoaming agent (trade name: Toshiba Silicone TSA732). An aqueous solution containing t% of rice, IM% of the above ester-type product obtained by reacting about 100% of ethylene oxide with one carboxyl group, and the silicone antifoaming agent o. All of the aqueous solutions containing fine t% have electrical conductivity in the range of 20 to 25 μS/skin, and when die steel SKD-11 is wire cut and electrically discharged using this solution, no rust occurs for more than 100 hours, and Machining was also stable, and it was possible to easily obtain the optimal machining fluid according to the machining conditions and material being processed.
また、上記エーテル型およびェステル型のラノリンポリ
オキシェチレン議導体を、それぞれ５ｗｔ％、シリコー
ン系消泡剤（前記東芝シリコーンＴＳＡ７３２）をそれ
ぞれ０．５ｗｔ％含む２つの水溶液を作り、試験装置と
して、西部電気■製Ｅ−２０が型放電加工機（電源型式
Ｅ−１００日、陽極電気鋼１０×１２仰角、ワークダイ
ス鋼のＳＫＤ−１１、放電加工時の下孔◇５柳）を用い
、噴流状態での加工時間を比較した。In addition, two aqueous solutions containing 5 wt% each of the above ether-type and ester-type lanolin polyoxyethylene conductors and 0.5 wt% each of a silicone antifoaming agent (Toshiba Silicone TSA732) were prepared, and used as test equipment. Seibu Electric ■ E-20 type electric discharge machine (power supply model E-100 days, anode electric steel 10 x 12 elevation angle, work die steel SKD-11, prepared hole ◇ 5 willow during electric discharge machining) was used to generate jet flow. We compared the machining times under these conditions.
第２表から明らかなように、前記２つの水溶液の加工速
度は、従来の炭化水素系加工液（エッソ、スタンダード
欄製、商品名レクター３５）に比し、透色がなく、１０
餌時間加工においても発錆がなかった。第１
（注）‘１’ ラノリンのヒドロキシル基に対し、平均
約７０分子のエチレンを付加した製器で、酸価５．０以
下、ヨウ素価１０、ケン化価１５、１％水溶液のｐＨ６
。As is clear from Table 2, the machining speed of the two aqueous solutions is higher than that of the conventional hydrocarbon-based machining fluid (Esso, manufactured by Standard Column, trade name Rector 35), with no transparent color and 10
No rust occurred during feeding time processing. 1st (Note) '1' A device with an average of about 70 molecules of ethylene added to the hydroxyl group of lanolin, with an acid value of 5.0 or less, an iodine value of 10, a saponification value of 15, and a pH of 1% aqueous solution of 6.
.
‘２） ラノリン脂肪酸と分子量約１０００のポリエチ
レングリコールとの反応により生成したェステルで、酸
価５、ケン化価５
０、１％水溶液のｐＨ４０
このように本発明による加工液は、ワイヤ−放電加工お
よび型彫放電加工のいずれの加工液としても、極めて優
れたものということができる。'2) It is an ester produced by the reaction of lanolin fatty acid and polyethylene glycol with a molecular weight of about 1000, and has an acid value of 5, a saponification value of 50, and a pH of 1% aqueous solution of 40. Thus, the machining fluid according to the present invention is suitable for wire electrical discharge machining. It can be said that it is extremely excellent as a machining fluid for both die-sinking and die-sinking electrical discharge machining.
２2
Claims (1)
チレンオキシドを付加させ、または、および、ラノリン
の脂肪酸に分子量３００〜１０００のポリエチレングリ
コールを反応させて作つたラノリンのポリオキシエチレ
ン変性物０．５〜５重量％と、シリコーン系消泡剤０．
１〜０．５重量％とを含む水溶液からなる防錆性を有す
る放電加工液。1 Polyoxyethylene modified product of lanolin made by adding 15 to 80 molecules of ethylene oxide to each hydroxyl group of lanolin, or reacting polyethylene glycol with a molecular weight of 300 to 1000 to the fatty acid of lanolin. 5% by weight and 0.5% by weight of silicone antifoaming agent.
1 to 0.5% by weight of an electrical discharge machining fluid having antirust properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18584482A JPS6023932B2 (en) | 1982-10-21 | 1982-10-21 | Electric discharge machining fluid with rust prevention properties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18584482A JPS6023932B2 (en) | 1982-10-21 | 1982-10-21 | Electric discharge machining fluid with rust prevention properties |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5973238A JPS5973238A (en) | 1984-04-25 |
| JPS6023932B2 true JPS6023932B2 (en) | 1985-06-10 |
Family
ID=16177862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18584482A Expired JPS6023932B2 (en) | 1982-10-21 | 1982-10-21 | Electric discharge machining fluid with rust prevention properties |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6023932B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5081333A (en) * | 1989-03-17 | 1992-01-14 | Mitsubishi Denki Kabushiki Kaisha | Electric discharge machining fluid with a fatty acid amide additive for rust inhibition |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991004820A1 (en) * | 1989-10-04 | 1991-04-18 | Johnson Co., Ltd. | Working fluid usable for both of cutting and electric discharge machining |
-
1982
- 1982-10-21 JP JP18584482A patent/JPS6023932B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5081333A (en) * | 1989-03-17 | 1992-01-14 | Mitsubishi Denki Kabushiki Kaisha | Electric discharge machining fluid with a fatty acid amide additive for rust inhibition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5973238A (en) | 1984-04-25 |
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