JPS6150999B2 - - Google Patents
Info
- Publication number
- JPS6150999B2 JPS6150999B2 JP58100208A JP10020883A JPS6150999B2 JP S6150999 B2 JPS6150999 B2 JP S6150999B2 JP 58100208 A JP58100208 A JP 58100208A JP 10020883 A JP10020883 A JP 10020883A JP S6150999 B2 JPS6150999 B2 JP S6150999B2
- Authority
- JP
- Japan
- Prior art keywords
- group
- coolant
- present
- drainer
- performance
- 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
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 4
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 4
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 4
- 239000002173 cutting fluid Substances 0.000 claims description 3
- 150000004985 diamines Chemical class 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 239000002826 coolant Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 11
- 230000006866 deterioration Effects 0.000 description 10
- -1 iron ion Chemical class 0.000 description 10
- 238000010828 elution Methods 0.000 description 7
- 230000000813 microbial effect Effects 0.000 description 7
- 239000012488 sample solution Substances 0.000 description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000019645 odor Nutrition 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000005069 Extreme pressure additive Substances 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004098 Tetracycline Substances 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229960005091 chloramphenicol Drugs 0.000 description 1
- WIIZWVCIJKGZOK-RKDXNWHRSA-N chloramphenicol Chemical compound ClC(Cl)C(=O)N[C@H](CO)[C@H](O)C1=CC=C([N+]([O-])=O)C=C1 WIIZWVCIJKGZOK-RKDXNWHRSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000001965 potato dextrose agar Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000011218 seed culture Methods 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 229960002180 tetracycline Drugs 0.000 description 1
- 229930101283 tetracycline Natural products 0.000 description 1
- 235000019364 tetracycline Nutrition 0.000 description 1
- 150000003522 tetracyclines Chemical class 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
Description
（産業上の利用分野）
本発明は切削加工、研削加工に用いる水溶性切
削油剤（以下「水切」という。）に関するもので
ある。さらに詳しくいえば、本発明は微生物劣化
が少なくまた鉄イオン溶出の少ない改良された水
切に関する。
（従来技術）
金属の切削加工、研削加工に用いる水切は、鉱
油、油脂、極圧添加剤、界面活性剤、消泡剤、金
属防食剤、酸化防止剤、防腐、防黴剤等を目的に
応じて適宜混合して組成されている。水切は通常
水で10〜100倍に希釈して使用される。この希釈
液をクーラントと呼んでいる。クーラントには被
削性をよくする性能（１次性能）と作業性その他
に関する性能（２次性能）とが要求される。この
うち２次性能としては防錆性がよいこと、劣化し
にくく管理しやすいこと、人体に無害であるこ
と、あわ立ちが少なく悪臭がないことなどが挙げ
られる。使用の目的や条件によつて重点のおき方
は異なるにしても、水切は上記の諸性能をバラン
スよく具備しなければならない。
（発明の目的）
本発明は上記諸性能のうち、とくに劣化しにく
いこと、さらに詳しくは微生物劣化しにくいこ
と、すなわち腐敗しにくくカビの発生しにくいこ
とと、鉄イオンの溶出が少ないことにおいてすぐ
れた水切を提供するものである。
クーラントにおいて、その微生物劣化を防ぐこ
とは非常に重要な問題である。クーラントの腐敗
が進行すると１次性能や２次性能が低下する上、
悪臭によつて作業環境もわるくなる。腐敗による
交油の頻度が高くなればコストの上でも不利にな
る。またクーラントにカビが発生すると、１次性
能、２次性能が低下するだけでなく、循環系統の
パイプ詰まりの原因となつたりする。クーラント
劣化の原因として、上記のほかに鉄イオンの溶出
がある。クーラントを用いて金属加工を続ける
と、徐々に鉄イオンがクーラント中に溶出し、こ
れが原因でクーラントが赤褐色化するとともに、
加工物表面に赤褐色の物質が付着し、その外観を
損ねる。このため、作業者は着色物質を除去する
ための作業をしなければならない。また加工物の
材質が鉄系金属の場合には、上記の付着物が加工
物のさびの発生を促すことがある。
クーラントの微生物劣化を防ぐために、水切に
各種の抗菌物質が加えられているが、長期間クー
ラントの劣化を防ぐことができず、満足すべき状
態ではない。
鉄イオンの溶出を防止するため、切削油の組成
について、いろいろな検討が加えられているが、
有効な手段が見出されていない。
本発明者は鋭意研究の結果、特殊なジアミンを
添加することによつて、水切の諸性能を損うこと
なしに耐微生物劣化性を著しく向上し、鉄イオン
の溶出を少なくし得ることを見出し本発明に到達
した。
（発明の構成）
本発明は鉱油、油脂、極圧添加剤、界面活性
剤、消泡剤、金属防食剤、酸化防止剤等を必要に
応じて混合した水切において、下式で表わされる
ジアミン（以下Ｄアミンという）を含有すること
を特徴とする水切である。
ただしR1は水素原子または炭素原子数１〜24
のアルキル基、アルケニル基、シクロアルキル
基、アルキルアリル基、アラルキル基またはアリ
ル基。R2は炭素原子数１〜24のアルキル基、ア
ルケニル基、シクロアルキル基、アルキルアリル
基、アラルキル基またはアリル基。
本発明において、鉱油、油脂、極圧添加剤、界
面活性剤、消泡剤、金属防食剤、酸化防止剤等
は、従来水切に用いられていたものの中から任意
に選択して用いることができる。
本発明においてＤアミンはクーラント中に
0.001〜１重量％存在することが望ましく、さら
には0.005〜0.5重量％存在することが望ましい。
0.001重量％未満では本発明の効果がなく、１重
量％を越えても効果は向上せず不経済である。Ｄ
アミンは水切の原液に加えてもよく、クーラント
中に添加してもよい。
本発明の水溶性切削油剤を製造するには、従来
の方法に従つて各成分を混合すればよい。
（実施例）
つぎに実施例を挙げて本発明を説明する。ただ
し本発明はこれによつてなんら制限されるもので
はない。
表―１にエマルシヨンタイプ、表―２にソリユ
ーブルタイプの水切の組成を掲げる。数字は重量
％を示す。
(Industrial Application Field) The present invention relates to a water-soluble cutting fluid (hereinafter referred to as "mizukiri") used for cutting and grinding. More specifically, the present invention relates to an improved drainer with less microbial deterioration and less iron ion elution. (Prior art) Water drainers used for cutting and grinding metals are used to remove mineral oils, oils, extreme pressure additives, surfactants, antifoaming agents, metal anticorrosives, antioxidants, preservatives, antifungal agents, etc. The composition is mixed as appropriate. Mizukiri is usually diluted 10 to 100 times with water. This diluted liquid is called coolant. Coolants are required to have performance that improves machinability (primary performance) and performance related to workability and others (secondary performance). Among these, secondary performance includes good rust prevention, resistance to deterioration, ease of management, harmlessness to the human body, and less foaming and odor. Although the emphasis differs depending on the purpose and conditions of use, a drainer must have a good balance of the above-mentioned performances. (Objective of the Invention) Among the above-mentioned properties, the present invention is particularly superior in that it is resistant to deterioration, more specifically in that it is resistant to microbial deterioration, that is, it is resistant to rotting, resistant to the growth of mold, and that there is little elution of iron ions. It provides a water drainer. Preventing microbial deterioration of coolants is a very important issue. As coolant decay progresses, primary and secondary performance will deteriorate, and
Bad odors also make the work environment worse. If the frequency of oil changes due to spoilage increases, it will be disadvantageous in terms of cost. Furthermore, if mold grows in the coolant, it not only reduces the primary performance and secondary performance, but also causes pipes in the circulation system to become clogged. In addition to the above, elution of iron ions is another cause of coolant deterioration. When metal processing is continued using coolant, iron ions gradually elute into the coolant, which causes the coolant to turn reddish-brown, and
A reddish-brown substance adheres to the surface of the workpiece, spoiling its appearance. Therefore, the operator must perform work to remove the colored substance. Further, when the material of the workpiece is an iron-based metal, the above-mentioned deposits may promote the formation of rust on the workpiece. In order to prevent microbial deterioration of the coolant, various antibacterial substances are added to the drainer, but the deterioration of the coolant cannot be prevented for a long period of time, and the situation is not satisfactory. In order to prevent the elution of iron ions, various studies have been conducted on the composition of cutting oil.
No effective means have been found. As a result of extensive research, the present inventor discovered that by adding a special diamine, it is possible to significantly improve microbial deterioration resistance and reduce the elution of iron ions without impairing the performance of draining. We have arrived at the present invention. (Structure of the Invention) The present invention provides a diamine ( This drainer is characterized by containing D-amine (hereinafter referred to as D amine). However, R 1 is a hydrogen atom or has a carbon number of 1 to 24
an alkyl group, alkenyl group, cycloalkyl group, alkylaryl group, aralkyl group or allyl group. R 2 is an alkyl group, alkenyl group, cycloalkyl group, alkylaryl group, aralkyl group or allyl group having 1 to 24 carbon atoms. In the present invention, mineral oil, fats and oils, extreme pressure additives, surfactants, antifoaming agents, metal anticorrosives, antioxidants, etc. can be arbitrarily selected from those conventionally used for draining. . In the present invention, D amine is contained in the coolant.
Preferably, the amount is 0.001 to 1% by weight, more preferably 0.005 to 0.5% by weight.
If it is less than 0.001% by weight, the effect of the present invention will not be achieved, and if it exceeds 1% by weight, the effect will not improve and it will be uneconomical. D
The amine may be added to the drain stock solution or may be added to the coolant. To produce the water-soluble cutting fluid of the present invention, the components may be mixed according to conventional methods. (Example) Next, the present invention will be described with reference to Examples. However, the present invention is not limited to this in any way. Table 1 lists the composition of the emulsion type, and Table 2 lists the composition of the soluble type drainer. Numbers indicate weight percent.
【表】
注―１ アゼライン酸0.63当量、トール油脂肪
酸0.37当量とテトラエチレンペンタミン
0.60モルとを180〜220℃で２時間加熱し
て得たポリアミノアミド化合物[Table] Note-1 Azelaic acid 0.63 equivalent, tall oil fatty acid 0.37 equivalent and tetraethylenepentamine
Polyaminoamide compound obtained by heating 0.60 mol at 180-220℃ for 2 hours
【表】
注―２ 表―１の（注―１）と同じ
表―１および表―２の水切について、以下の実
験を行ない性能を評価した。
(1) 試料液の調整
表―１および表―２に掲げた実施例および比較
例の水切を滅菌水で希釈し、表―１の水切は3wt
％に、表―２の水切は2wt％に調整して試料液と
した。
(2) 耐微生物劣化性テスト
各試料液400mlを滅菌した500ml容の平底フラス
コに入れ、これに種菌として腐販したエマルシヨ
ン（生菌数２〜108個／ml、真菌数１×104個／
ml）１重量％を実験開始後１，２，４，８，13，
17日の間隔で接種し、30℃で21日間振とう培養
（回転数200rpm）した。そして０，３，７，14お
よび21日目に各試料液の一部を無菌的に採取し、
生菌数および真菌数を測定し、同時にPHの測定、
外観変化および臭気を観察した。さらにさび止め
性能の観察も行なつた。なお、生菌数は普通寒天
培地を用いてプレートカウント法により測定し
た。真菌数は抗生物質（クロラムフエニコールお
よびテトラサイクリン）を添加したポテトデキス
トロース寒天培地を用いてプレートカウント法に
より測定した。
また、さび止め性の観察は鋳鉄切屑法によつて
行なつた。すなわち、約15gのドライカツトした
鋳物切屑（FC―25，８−12メツシユ）をペトリ
皿（内径約60mm）に採取し、これに試料液約25ml
を添加し、充分振とうしたのち、約４分間静置し
た。つぎに試料液を傾斜法によつて除去し、ペト
リ皿上に発生するさびの状態を経時的に調べた。
表―３および表―４に経日による測定結果を示
す。表―３および表―４の結果から、本発明の水
切が従来の水切よりも耐微生物性においてすぐれ
ていることは明らかである。[Table] Note 2: Same as (Note 1) in Table 1. The following experiments were conducted to evaluate the performance of the water drainers in Table 1 and Table 2. (1) Preparation of sample solution Dilute the drainers of the examples and comparative examples listed in Table-1 and Table-2 with sterile water, and the drainer of Table-1 is 3wt.
%, and the drain in Table 2 was adjusted to 2wt% and used as a sample solution. (2) Microbial deterioration resistance test Pour 400 ml of each sample solution into a sterilized 500 ml flat-bottomed flask, and use the emulsion sold as a seed culture (2 to 10 8 viable bacteria/ml, 1 x 10 4 fungi) /
ml) 1% by weight after the start of the experiment 1, 2, 4, 8, 13,
The cells were inoculated at 17-day intervals and cultured with shaking (200 rpm) at 30°C for 21 days. Then, on days 0, 3, 7, 14, and 21, a portion of each sample solution was collected aseptically.
Measure the number of viable bacteria and fungi, and at the same time measure the PH,
Changes in appearance and odor were observed. Furthermore, the rust prevention performance was also observed. In addition, the number of viable bacteria was measured by the plate counting method using an ordinary agar medium. Fungal counts were determined by plate counting using potato dextrose agar medium supplemented with antibiotics (chloramphenicol and tetracycline). In addition, rust prevention properties were observed using the cast iron chip method. That is, approximately 15 g of dry-cut casting chips (FC-25, 8-12 mesh) was collected in a Petri dish (inner diameter approximately 60 mm), and approximately 25 ml of the sample liquid was added to it.
was added, thoroughly shaken, and then left to stand for about 4 minutes. Next, the sample solution was removed by a decanting method, and the state of rust generated on the Petri dish was examined over time. Tables 3 and 4 show the measurement results over time. From the results in Tables 3 and 4, it is clear that the colander of the present invention is superior in microbial resistance to the conventional colander.
【表】【table】
【表】【table】
【表】【table】
【表】【table】
【表】
(3) 鉄イオン溶出防止能テスト
前記(1)の方法により調整した試料液400mlおよ
びドライカツトした鋳物切屑（FC―25 ８〜12メ
ツシユ）40gを500ml容のエルレンマイヤーフラ
スコに入れ、綿栓をし、37℃で20日間振とう（回
転数150rpm）して試料液を劣化させた。放冷
後、No.5Aのろ紙でろ過し劣化液を得た。この劣
化液について外観変化を観察し、鉄イオン濃度を
測定した。結果を表―５に示す。[Table] (3) Iron ion elution prevention ability test Put 400 ml of the sample solution prepared by the method in (1) above and 40 g of dry-cut casting chips (FC-25 8-12 meshes) into a 500 ml Erlenmeyer flask. A cotton plug was attached, and the sample solution was deteriorated by shaking at 37°C for 20 days (rotation speed: 150 rpm). After cooling, it was filtered through No. 5A filter paper to obtain a degraded liquid. Changes in the appearance of this degraded liquid were observed, and the iron ion concentration was measured. The results are shown in Table-5.
【表】【table】
【表】
表―５の結果から本発明の水切が従来の水切よ
りも鉄イオン防止能がすぐれていることが明らか
である。
（発明の効果）
本発明の水切はそのクーラントが腐販しにく
く、カビを発生しにくく、鉄イオンの溶出が少な
く、しかもその他の諸性能において従来の水切に
劣らない。[Table] From the results in Table 5, it is clear that the drainer of the present invention has a better ability to prevent iron ions than the conventional drainer. (Effects of the Invention) In the drainer of the present invention, the coolant is less susceptible to spoilage, is less likely to generate mold, has less iron ion elution, and is not inferior to conventional drainers in other performances.
Claims (1)
とを特徴とする水溶性切削油剤。 ただしR1は水素原子または炭素原子数１〜24
のアルキル基、アルケニル基、シクロアルキル
基、アルキルアリル基、アラルキル基またはアリ
ル基。R2は炭素原子数１〜24のアルキル基、ア
ルケニル基、シクロアルキル基、アルキルアリル
基、アラルキル基またはアリル基。[Scope of Claims] 1. A water-soluble cutting fluid characterized by containing a diamine represented by the following formula. However, R 1 is a hydrogen atom or has a carbon number of 1 to 24
an alkyl group, alkenyl group, cycloalkyl group, alkylaryl group, aralkyl group or allyl group. R 2 is an alkyl group, alkenyl group, cycloalkyl group, alkylaryl group, aralkyl group or allyl group having 1 to 24 carbon atoms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10020883A JPS601290A (en) | 1983-06-07 | 1983-06-07 | Water-soluble cutting oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10020883A JPS601290A (en) | 1983-06-07 | 1983-06-07 | Water-soluble cutting oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS601290A JPS601290A (en) | 1985-01-07 |
| JPS6150999B2 true JPS6150999B2 (en) | 1986-11-06 |
Family
ID=14267883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10020883A Granted JPS601290A (en) | 1983-06-07 | 1983-06-07 | Water-soluble cutting oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS601290A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63314596A (en) * | 1988-06-03 | 1988-12-22 | ヤマハ株式会社 | Musical sound control signal generator for electronic musical instrument |
| JPH02296296A (en) * | 1989-05-10 | 1990-12-06 | Roland Corp | Operating element device for electronic musical instrument |
| JP2526650B2 (en) * | 1987-12-24 | 1996-08-21 | ヤマハ株式会社 | Music control device |
| JP2560464B2 (en) * | 1987-12-24 | 1996-12-04 | ヤマハ株式会社 | Music control device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0676590B2 (en) * | 1987-08-12 | 1994-09-28 | ユシロ化学工業株式会社 | Water-soluble cutting fluid |
| JPH0730348B2 (en) * | 1989-03-02 | 1995-04-05 | ユシロ化学工業株式会社 | Antibacterial water-soluble cutting fluid |
| JPH0730351B2 (en) * | 1989-03-02 | 1995-04-05 | ユシロ化学工業株式会社 | Antibacterial water-soluble cutting fluid |
| JP4606091B2 (en) * | 2004-08-30 | 2011-01-05 | 株式会社ネオス | Preservative for water-soluble metalworking fluid |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5867792A (en) * | 1981-10-19 | 1983-04-22 | Fuji Kasei Kogyo Kk | Aqueous processing agent for metal |
-
1983
- 1983-06-07 JP JP10020883A patent/JPS601290A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5867792A (en) * | 1981-10-19 | 1983-04-22 | Fuji Kasei Kogyo Kk | Aqueous processing agent for metal |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2526650B2 (en) * | 1987-12-24 | 1996-08-21 | ヤマハ株式会社 | Music control device |
| JP2560464B2 (en) * | 1987-12-24 | 1996-12-04 | ヤマハ株式会社 | Music control device |
| JPS63314596A (en) * | 1988-06-03 | 1988-12-22 | ヤマハ株式会社 | Musical sound control signal generator for electronic musical instrument |
| JPH02296296A (en) * | 1989-05-10 | 1990-12-06 | Roland Corp | Operating element device for electronic musical instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS601290A (en) | 1985-01-07 |
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