JPH0665590A - Water-soluble lubricant composition for plunger - Google Patents
Water-soluble lubricant composition for plungerInfo
- Publication number
- JPH0665590A JPH0665590A JP24575992A JP24575992A JPH0665590A JP H0665590 A JPH0665590 A JP H0665590A JP 24575992 A JP24575992 A JP 24575992A JP 24575992 A JP24575992 A JP 24575992A JP H0665590 A JPH0665590 A JP H0665590A
- Authority
- JP
- Japan
- Prior art keywords
- water
- lubricant composition
- lubricant
- plunger
- pts
- 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.)
- Granted
Links
Landscapes
- Lubricants (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アルミニウム、マグネ
シウム、亜鉛等及びその合金の鋳造加工において、射出
スリーブ内面とプランジャー間の摩擦低減のために使用
する水溶性プランジャー用潤滑剤組成物に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-soluble plunger lubricant composition used for reducing friction between the inner surface of an injection sleeve and a plunger in casting of aluminum, magnesium, zinc and the like and alloys thereof. It is a thing.
【０００２】[0002]
【従来の技術】プランジャー用潤滑剤は、プランジャー
と射出スリーブ間の摩擦を低減して溶湯をキャビティ内
にスムースに送り込む役目を有する。かかるプランジャ
ー用潤滑剤としては、従来より不水溶性と水溶性の潤滑
剤が知られている。ここで、不水溶性の潤滑剤として
は、例えば、黒鉛等の粉体を使用する潤滑剤が開示さ
れている（特開平１−１４４４９４号公報）。また、水
溶性の潤滑剤としては、例えば、鉱物油、油脂、脂肪
酸エステル、界面活性剤よりなる潤滑剤が提案されてい
る（特開平２−２４８４９７号公報）。2. Description of the Related Art A lubricant for a plunger serves to reduce friction between a plunger and an injection sleeve and smoothly feed a molten metal into a cavity. As such a lubricant for a plunger, water-insoluble and water-soluble lubricants have been conventionally known. Here, as the water-insoluble lubricant, for example, a lubricant using powder such as graphite has been disclosed (JP-A-1-144494). As the water-soluble lubricant, for example, a lubricant composed of mineral oil, fats and oils, fatty acid esters, and surfactants has been proposed (JP-A-2-248497).
【０００３】[0003]
【発明が解決しようとする課題】しかし、前記の潤滑
剤は、オイルを主成分とするため火災の危険性を有して
いると共に、機械廻りを汚すという問題点がある。これ
に対して、黒鉛を含有せず、白色固体潤滑剤を使用する
不水溶性潤滑剤（特開平２−２１５８９４号公報）、或
いは粉体を含有しない不水溶性潤滑剤（特開平２−２２
８３９３号公報）も提案されているが、前者は依然とし
て火災の危険性を有し、後者は潤滑性に劣るという問題
がある。一方、前記の潤滑剤は、不水溶性潤滑剤に比
較して潤滑性が劣り、所謂、プランジャーチップのかじ
りが発生するという問題点がある。特に、最近では、溶
湯温度が通常より１００℃以上高い鋳造加工が多くな
り、かじりや鋳巣の発生が多いという問題点もある。従
って、潤滑性及び耐熱性に優れ、且つ、作業性の良いプ
ランジャー用潤滑剤は見出されていないのが実情であ
る。However, since the above-mentioned lubricant contains oil as a main component, there is a risk of fire and there is a problem that the surroundings of the machine are contaminated. On the other hand, a water-insoluble lubricant containing no graphite and using a white solid lubricant (JP-A-2-215894), or a water-insoluble lubricant containing no powder (JP-A-2-22).
No. 8393) is also proposed, but the former still has a risk of fire and the latter has a problem that lubricity is inferior. On the other hand, the above-mentioned lubricant has a problem that the lubricity is inferior to that of the water-insoluble lubricant and so-called galling of the plunger tip occurs. In particular, recently, there has been a problem that the number of casting processes in which the molten metal temperature is 100 ° C. or more higher than usual increases, and galling and cavities often occur. Therefore, the fact is that no lubricant for plungers having excellent lubricity and heat resistance and good workability has been found.
【０００４】本発明は、上記観点に鑑みてなされたもの
であり、高潤滑性を維持しつつ耐熱性に優れ、且つ火災
の危険性がなく、作業性の良い水溶性プランジャー用潤
滑剤組成物を提供することを目的とする。The present invention has been made in view of the above point of view, and has excellent heat resistance while maintaining high lubricity, has no risk of fire, and has good workability, and thus has a good workability as a lubricant composition for a water-soluble plunger. The purpose is to provide things.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、プランジ
ャーの潤滑性及び耐熱性と、潤滑剤組成との関係につい
て鋭意研究した結果、潤滑性及び耐熱性に優れ、火災の
危険性がなく、且つ機械廻りへの付着が少なく、付着し
ても容易に除去できる作業性の良好な水溶性プランジャ
ー用潤滑剤組成物を創製し本発明を完成するに至ったの
である。即ち、本第１発明の水溶性プランジャー用潤滑
剤組成物（以下、「潤滑剤組成物」という。）は、高級
脂肪酸金属塩、界面活性剤、天然多糖類化合物及び水を
含有することを特徴とする。Means for Solving the Problems As a result of earnest studies on the relationship between the lubricity and heat resistance of the plunger and the lubricant composition, the present inventors have found that the lubricity and heat resistance are excellent and the risk of fire is high. The present invention has been accomplished by creating a lubricant composition for a water-soluble plunger that is free of adhesion to machines and has a good workability that can be easily removed even if it adheres. That is, the lubricant composition for a water-soluble plunger of the first invention (hereinafter referred to as "lubricant composition") contains a higher fatty acid metal salt, a surfactant, a natural polysaccharide compound and water. Characterize.
【０００６】上記高級脂肪酸金属塩としては、ヤシ脂肪
酸、牛脂脂肪酸、オレイン酸、ステアリン酸、ラウリン
酸、パルミチン酸、ナフテン酸等のアルカリ金属、アル
カリ土類金属の塩等を挙げることができる。また、上記
界面活性剤は、高級脂肪酸金属塩を分散する作用をもつ
成分であり、組成物の均一な混合を妨げないものであれ
ば、カチオン系界面活性剤、アニオン系界面活性剤及び
ノニオン系界面活性剤のいずれも使用することができ
る。更に、この界面活性剤の含有量は、本第２発明に示
す様に、高級脂肪酸金属塩の含有量を１００重量部とし
た場合に、１〜２５重量部（特に、好ましくは５〜１５
重量部）とするのが好ましい。この含有量が１重量部未
満では、分散安定性が低下し、２５重量部を越えると高
級脂肪酸金属塩が有する潤滑性及び耐熱性が低下するか
らである。[0006] As the higher fatty acid metal salts may be mentioned coconut fatty acids, tallow fatty acids, oleic acid, stearic acid, lauric acid, palmitic acid, alkali metal such as naphthenic acid, an alkaline earth metal salt. Further, the above-mentioned surfactant is a component having an action of dispersing a higher fatty acid metal salt, and if it does not prevent uniform mixing of the composition, it is a cationic surfactant, an anionic surfactant and a nonionic surfactant. Any of the surfactants can be used. Further, the content of this surfactant is 1 to 25 parts by weight (particularly preferably 5 to 15 parts by weight) when the content of the higher fatty acid metal salt is 100 parts by weight, as shown in the second invention.
(Parts by weight) is preferred. If the content is less than 1 part by weight, the dispersion stability will decrease, and if it exceeds 25 parts by weight, the lubricity and heat resistance of the higher fatty acid metal salt will decrease.
【０００７】上記天然多糖類化合物は増粘剤として作用
するものであり、具体的には、ザンサンガム、グアーガ
ム、ローカストビンガム、ウェランガム、クラーガム又
はその誘導体（例えば、ヒドロキシプロピル化グアーガ
ム）等が挙げられる。また、この天然多糖類化合物の含
有量は、本第２発明に示す様に、高級脂肪酸金属塩の含
有量を１００重量部とした場合に、０．１〜１０重量部
（特に、好ましくは０．１〜３重量部）とするのが好ま
しい。この含有量が０．１重量部未満では組成物の安定
性が低下し、１０重量部を越えると増粘するため潤滑剤
として供給が困難となり、潤滑性及び耐熱性を十分に発
揮できなくなるからである。尚、本発明の潤滑剤組成物
は、上記成分と水とを必須成分とするが、これらの必須
成分以外に、防腐防黴剤、消泡剤等の任意添加剤を適宜
添加することもできる。The above-mentioned natural polysaccharide compound acts as a thickener, and specific examples thereof include xanthan gum, guar gum, locust bin gum, welan gum, clarum gum or derivatives thereof (for example, hydroxypropylated guar gum). Further, the content of this natural polysaccharide compound is 0.1 to 10 parts by weight (particularly preferably 0) when the content of the higher fatty acid metal salt is 100 parts by weight, as shown in the second invention. 0.1 to 3 parts by weight) is preferable. If the content is less than 0.1 parts by weight, the stability of the composition is lowered, and if it exceeds 10 parts by weight, it becomes difficult to supply it as a lubricant and the lubricity and heat resistance cannot be sufficiently exhibited. Is. The lubricant composition of the present invention contains the above-mentioned components and water as essential components, but in addition to these essential components, an optional additive such as an antiseptic / antifungal agent and an antifoaming agent can be appropriately added. .
【０００８】[0008]
【実施例】以下、実施例により本発明を具体的に説明す
る。 実施例１ 本実施例では、本発明に係わる水溶性潤滑剤組成物と従
来品に係わる水溶性潤滑剤組成物の性能の比較を行っ
た。 （１）潤滑剤組成物の調製 表１に実施品Ｎｏ．１〜８に係わる潤滑剤組成物の組成
を、表２に比較品１〜５に係わる潤滑剤組成物の組成を
それぞれ示す。EXAMPLES The present invention will be specifically described below with reference to examples. Example 1 In this example, the performances of the water-soluble lubricant composition according to the present invention and the conventional water-soluble lubricant composition were compared. (1) Preparation of lubricant composition The compositions of the lubricant compositions according to Nos. 1 to 8 and Table 2 show the compositions of the lubricant compositions according to Comparative Products 1 to 5, respectively.
【０００９】[0009]
【表１】 [Table 1]
【００１０】[0010]
【表２】 [Table 2]
【００１１】尚、各表中における組成の数値は、特記し
ない限り重量部を示す。また、表１中の「アニオン系界
面活性剤」としては、ジオクチルスルホコハク酸ナトリ
ウムを用いた。更に、各表中の「ノニオン系界面活性剤
ａ」としては「ノニポールＳＮ８５（商品名）」（三洋
化成工業株式会社製）を、「ノニオン系界面活性剤ｂ」
としては「ノニポールＳＮ４０（商品名）」（三洋化成
工業株式会社製）を、「ノニオン系界面活性剤ｃ」はソ
ルビタンモノオレエートをそれぞれ用いた。また、表１
中の「天然多糖類化合物」としてはザンサンガム（商品
名「ＫＥＬＺＡＮ」、三晶株式会社製）を用いた。更
に、表２中の「鉱油」としては「ＳＡＥ３０（商品
名）」（日本石油株式会社製）を、「ワックス」として
は「ＡＣＰ６２９（商品名）」（アライドケミカル製）
をそれぞれ用いた。また、表１中の「界面活性剤」及び
「天然多糖類化合物」の欄に括弧を付して併記した数値
は、高級脂肪酸金属塩の含有量を１００重量部と仮定し
た場合に、それに対応する「界面活性剤」及び「天然多
糖類化合物」の含有量（重量部）をそれぞれ示したもの
である。The numerical values of the compositions in each table are parts by weight unless otherwise specified. In addition, as the "anionic surfactant" in Table 1, sodium dioctylsulfosuccinate was used. Furthermore, as the "nonionic surfactant a" in each table, "Nonipol SN85 (trade name)" (manufactured by Sanyo Kasei Co., Ltd.) and "nonionic surfactant b" are used.
"Nonipol SN40 (trade name)" (manufactured by Sanyo Kasei Co., Ltd.) was used as the "nonionic surfactant c", and sorbitan monooleate was used as the "nonionic surfactant c". Also, Table 1
Zansan gum (trade name "KELZAN", manufactured by Sansho Co., Ltd.) was used as the "natural polysaccharide compound". Furthermore, in Table 2, "SAE30 (trade name)" (manufactured by Nippon Oil Co., Ltd.) is used as "mineral oil", and "ACP629 (trade name)" (manufactured by Allied Chemicals) is used as "wax".
Were used respectively. In addition, the numerical values shown in parentheses in the columns of "surfactant" and "natural polysaccharide compound" in Table 1 correspond to the case where the content of the higher fatty acid metal salt is assumed to be 100 parts by weight. The contents (parts by weight) of the “surfactant” and the “natural polysaccharide compound” are shown respectively.
【００１２】（２）性能試験とその評価 本発明の潤滑剤組成物の性能を明らかにするため、以下
に示す試験方法及び条件の下で性能試験（耐熱試験及び
摺動試験）及びその評価を行った。これらの結果を表３
に示す。(2) Performance test and its evaluation In order to clarify the performance of the lubricant composition of the present invention, a performance test (heat resistance test and sliding test) and its evaluation were conducted under the following test methods and conditions. went. These results are shown in Table 3.
Shown in.
【００１３】[0013]
【表３】 [Table 3]
【００１４】耐熱試験 矩形状試験片（材質；Ｓ３５Ｃ、５０×１００×１５ｍ
ｍ）を４００℃に加熱した後、その表面上に、上記実施
例及び比較例に係わる各潤滑剤組成物を、その不揮発分
が５ｇとなる様に滴下したときの発煙状態を観察評価し
た。尚、表３中の発煙性の評価の表示は、「◎」は「発
煙が少ない」、「○」は「やや発煙した」、「×」は
「発煙量が多い」、「××」は「発煙量が著しく多い」
をそれぞれ示す。 摺動試験 本性能試験は、付着すべり試験機（バーデン試験機）を
用いて、潤滑試験を行い、試験片（ＳＰＣＣ−ＳＰＢ）
が焼きつくまでの摺動回数を測定したものである。試験
条件を以下に示す。 荷重；１ｋｇｆ 鋼球；ＳＵＪ−２（直径；３／１６ｉｎｃｈ） 滑り速度；４ｍ／ｓ 試験温度；２００℃ 試料（潤滑剤組成物）滴下量；０．３ｇHeat resistance test Rectangular test piece (material: S35C, 50 × 100 × 15 m
After heating m) to 400 ° C., the smoke generation state was observed and observed when each of the lubricant compositions according to the above Examples and Comparative Examples was dropped on the surface so that the nonvolatile content was 5 g. In addition, the indication of the evaluation of smoke generation in Table 3 is as follows: "◎" means "low smoke", "○" means "some smoke", "x" means "high smoke amount", "xx" means "Remarkably large amount of smoke"
Are shown respectively. Sliding test In this performance test, a lubrication test is performed using an adhesion slip tester (Baden tester), and a test piece (SPCC-SPB)
Is the number of times of sliding until it is seized. The test conditions are shown below. Load: 1 kgf Steel ball; SUJ-2 (diameter: 3/16 inch) Sliding speed: 4 m / s Test temperature: 200 ° C. Sample (lubricant composition) drop amount: 0.3 g
【００１５】以上の性能試験によれば、比較品に係わる
潤滑剤組成物は、耐熱試験において、十分に発煙を抑え
られず、耐熱性の悪さを示した。また、摺動試験におい
ても少ない摺動回数（９〜１７回）で試験片が焼きつ
き、潤滑性の悪さを示した。これらに対して、本実施品
の潤滑剤組成物は、耐熱試験及び摺動試験の結果が良好
で、耐熱性、潤滑性が優れていることを示した。According to the above performance tests, the lubricant composition according to the comparative product showed poor heat resistance in the heat resistance test because it could not sufficiently suppress smoke emission. Also, in the sliding test, the test piece seized after a small number of times of sliding (9 to 17 times), showing poor lubricity. On the other hand, the lubricant composition of this example showed good results in the heat resistance test and the sliding test, and was shown to have excellent heat resistance and lubricity.
【００１６】実施例２ 本実施例では、本発明に係わる水溶性潤滑剤組成物と従
来品に係わる不水溶性潤滑剤組成物に対して、実機試験
を行い、両者の性能等の比較を行った。即ち、前記実施
品Ｎｏ．１の潤滑剤組成物を用い、以下の加工条件で、
ハウジングコンバータの鋳造を行い、耐磨耗性（鋳巣の
発生の有無、プランジャーチップ及びスリーブのかじり
の発生の有無）の評価を行った。 型締力；８００ｔｆ 射出速度；２０ｍ／ｓ 材質；ＡＤＣ−１２ 溶湯温度；６９０℃ 供給方法；スリーブ内にスプレー 供給量；３ｍｌ／ｓｈｏｔ また、比較のため、従来例に係わる黒鉛含有不水溶性潤
滑剤（商品名「プランジャーハイトＴＹ」（日本黒鉛株
式会社製））を用い、同様の加工条件で、ハウジングコ
ンバータの鋳造を行った。Example 2 In this example, a water-soluble lubricant composition according to the present invention and a water-insoluble lubricant composition according to a conventional product were subjected to an actual machine test to compare their performances. It was That is, the product No. Using the lubricant composition of 1, under the following processing conditions,
The housing converter was cast, and the abrasion resistance (whether or not a porosity was generated, and whether or not galling of the plunger tip and the sleeve was generated) was evaluated. Mold clamping force: 800tf Injection speed: 20m / s Material: ADC-12 Molten metal temperature: 690 ° C Supply method: Spray in the sleeve Supply amount: 3ml / shot Also, for comparison, a graphite-containing water-insoluble lubricant according to a conventional example A housing converter was cast under the same processing conditions using an agent (trade name "Plunger Height TY" (manufactured by Nippon Graphite Co., Ltd.)).
【００１７】以上の実機試験によれば、実施品Ｎｏ．１
の潤滑剤組成物（以下、「実施品」という。）を用いた
場合には、従来例に係わる黒鉛含有不水溶性潤滑剤（以
下、「従来品」という。）を用いた場合と同様に、鋳
巣、プランジャーチップ及びスリーブのかじり等が発生
せず、耐磨耗性の良さを示した。従って、本実施品を用
いた場合には、従来品と同等の耐磨耗性を確保しつつ、
オイルを主成分とする従来品が有していた火災に対する
危険性はなく、また従来品を用いた場合に生じ易い、機
械回りの汚れを生じさせることも少ない。尚、本発明に
おいては、前記具体的実施例に示すものに限られず、目
的、用途に応じて本発明の範囲内で種々変更した実施例
とすることができる。According to the above actual machine test, the product No. 1
In the case of using the lubricant composition (hereinafter referred to as “implemented product”), the same as the case of using the graphite-containing water-insoluble lubricant according to the conventional example (hereinafter referred to as “conventional product”). In addition, no porosity, no galling of the plunger tip and the sleeve, and the like, showed good wear resistance. Therefore, when using this product, while ensuring the same wear resistance as the conventional product,
There is no risk of a fire that a conventional product containing oil as a main component has, and it is less likely to cause stains around the machine, which is likely to occur when the conventional product is used. The present invention is not limited to the specific examples described above, and various modifications may be made within the scope of the present invention depending on the purpose and application.
【００１８】[0018]
【発明の効果】本発明の水溶性プランジャー用潤滑剤組
成物は、潤滑性、耐熱性及び作業性に優れる。従って、
本潤滑剤を使用することにより、鋳造作業の合理化、省
力化を図ることが可能となる。The water-soluble plunger lubricant composition of the present invention is excellent in lubricity, heat resistance and workability. Therefore,
By using this lubricant, it is possible to streamline the casting work and save labor.
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ１０Ｎ 10:02 10:04 40:06 40:24 Ａ 8217−4Ｈ Ｚ 8217−4Ｈ Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location C10N 10:02 10:04 40:06 40:24 A 8217-4H Z 8217-4H
Claims (2)
糖類化合物及び水を含有することを特徴とする水溶性プ
ランジャー用潤滑剤組成物。1. A lubricant composition for a water-soluble plunger, which contains a higher fatty acid metal salt, a surfactant, a natural polysaccharide compound and water.
重量部とした場合に、上記界面活性剤の含有量が１〜２
５重量部、上記天然多糖類化合物の含有量が０．１〜１
０重量部である請求項１記載の水溶性プランジャー用潤
滑剤組成物。2. The content of the higher fatty acid metal salt is 100.
The content of the above-mentioned surfactant is 1 to 2 in parts by weight.
5 parts by weight, the content of the natural polysaccharide compound is 0.1 to 1
The lubricant composition for a water-soluble plunger according to claim 1, which is 0 part by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24575992A JP2882949B2 (en) | 1992-08-21 | 1992-08-21 | Lubricant composition for water-soluble plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24575992A JP2882949B2 (en) | 1992-08-21 | 1992-08-21 | Lubricant composition for water-soluble plunger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0665590A true JPH0665590A (en) | 1994-03-08 |
| JP2882949B2 JP2882949B2 (en) | 1999-04-19 |
Family
ID=17138379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24575992A Expired - Lifetime JP2882949B2 (en) | 1992-08-21 | 1992-08-21 | Lubricant composition for water-soluble plunger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2882949B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001172664A (en) * | 1999-12-22 | 2001-06-26 | Daido Metal Co Ltd | Lubricating agent |
| JP2003089797A (en) * | 2001-09-18 | 2003-03-28 | Cosmo Sekiyu Lubricants Kk | Lubricant for plastic working of magnesium alloy |
| JP2003277786A (en) * | 2002-03-26 | 2003-10-02 | Daido Metal Co Ltd | Lubricant |
| WO2012144457A1 (en) * | 2011-04-22 | 2012-10-26 | アイシン精機株式会社 | Water-soluble plunger lubricant for die-casting |
-
1992
- 1992-08-21 JP JP24575992A patent/JP2882949B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001172664A (en) * | 1999-12-22 | 2001-06-26 | Daido Metal Co Ltd | Lubricating agent |
| JP2003089797A (en) * | 2001-09-18 | 2003-03-28 | Cosmo Sekiyu Lubricants Kk | Lubricant for plastic working of magnesium alloy |
| JP2003277786A (en) * | 2002-03-26 | 2003-10-02 | Daido Metal Co Ltd | Lubricant |
| WO2012144457A1 (en) * | 2011-04-22 | 2012-10-26 | アイシン精機株式会社 | Water-soluble plunger lubricant for die-casting |
| JP2012224818A (en) * | 2011-04-22 | 2012-11-15 | Aisin Seiki Co Ltd | Water-soluble plunger lubricant for die-casting |
| CN103534342A (en) * | 2011-04-22 | 2014-01-22 | 爱信精机株式会社 | Water-soluble plunger lubricant for die-casting |
| US9206378B2 (en) | 2011-04-22 | 2015-12-08 | Aisin Seiki Kabushiki Kaisha | Plunger water-soluble lubricant for die-casting |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2882949B2 (en) | 1999-04-19 |
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