JPH04178498A - Lubricant composition for ball joint - Google Patents
Lubricant composition for ball jointInfo
- Publication number
- JPH04178498A JPH04178498A JP30467590A JP30467590A JPH04178498A JP H04178498 A JPH04178498 A JP H04178498A JP 30467590 A JP30467590 A JP 30467590A JP 30467590 A JP30467590 A JP 30467590A JP H04178498 A JPH04178498 A JP H04178498A
- Authority
- JP
- Japan
- Prior art keywords
- fatty acid
- polymerized fatty
- addition salt
- viscosity
- ball joint
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 21
- 239000000314 lubricant Substances 0.000 title claims description 30
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 26
- 239000000194 fatty acid Substances 0.000 claims abstract description 26
- 229930195729 fatty acid Natural products 0.000 claims abstract description 26
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 26
- 150000003839 salts Chemical class 0.000 claims abstract description 26
- 239000004952 Polyamide Substances 0.000 claims abstract description 21
- 229920002647 polyamide Polymers 0.000 claims abstract description 21
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 16
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 16
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000005642 Oleic acid Substances 0.000 claims abstract description 16
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 16
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 16
- 150000001412 amines Chemical class 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 11
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002253 acid Substances 0.000 claims abstract description 4
- -1 polyethylene Polymers 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229920000768 polyamine Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000001993 wax Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- FAXDZWQIWUSWJH-UHFFFAOYSA-N 3-methoxypropan-1-amine Chemical compound COCCCN FAXDZWQIWUSWJH-UHFFFAOYSA-N 0.000 description 3
- 239000002199 base oil Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004203 carnauba wax Substances 0.000 description 1
- 235000013869 carnauba wax Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
Description
【発明の詳細な説明】
＝発明の目的＝
（産業上の利用分野）
本発明は主として、自動車のサスペンション又はステア
リングなどにおいて使用されるボールジヨイント用潤滑
剤組成物に関する。DETAILED DESCRIPTION OF THE INVENTION =Object of the Invention= (Industrial Application Field) The present invention primarily relates to a lubricant composition for ball joints used in automobile suspensions, steerings, and the like.
（従来の技術）
ボールジヨイント用潤滑剤としてデュオミーンエージオ
レートを基油に使用し、ジアミド化合物を配合した特公
昭６２−５４１５５号等があげられる。(Prior Art) As a lubricant for ball joints, there is Japanese Patent Publication No. 62-54155, which uses Duomine Ageolate as a base oil and blends a diamide compound.
（発明が解決しようとする課題）
自動車技術の向上により、自動車部品に高い耐久性が要
求されており、ボールジヨイントについても同様に、高
い耐久性が要求されている。ボールジヨイントの場合、
組み立て時の予圧荷重の増加によって、長期使用後のリ
フト量の増加を抑制させ、結果的に耐久性の向上が計れ
る。しかし−方で予圧荷重の増加によるボールジヨイン
トの作動トルクの増大を招いてしまう。(Problems to be Solved by the Invention) With the improvement of automobile technology, high durability is required for automobile parts, and high durability is also required for ball joints. In the case of a ball joint,
By increasing the preload during assembly, the increase in lift amount after long-term use can be suppressed, resulting in improved durability. However, this results in an increase in the operating torque of the ball joint due to an increase in preload load.
したがって、高い耐久性を得ながらも、従来の潤滑剤よ
りもボールジヨイントの作動トルクを低下させ得るボー
ルジヨイント用潤滑剤の開発が強く望まれていた。Therefore, there has been a strong desire to develop a lubricant for ball joints that can reduce the operating torque of ball joints more than conventional lubricants while providing high durability.
−発明の構成−
（課題を解決するための手段）
本発明者らは、ボールジヨイントの潤滑要素を鑑みプラ
スチックスと金属、特にポリアセクールと鉄の摩擦係数
を低減する潤滑剤を開発すべ（鋭意研究を重ねた結果、
重合脂肪酸ポリアミドとオレイン酸から得られる２５℃
の粘度が１００００からＩ ００００００ｃＰの付加塩
がポールジョイン）・の作動トルクを著しく低下させる
ことを見出だし、当該付加塩を実質的主成分とするボー
ルジヨイント用潤滑剤組成物で所期の目的を達成し得る
ことを見出だし、ここに本発明を完成することに至った
。-Structure of the Invention- (Means for Solving the Problems) The present inventors have developed a lubricant that reduces the coefficient of friction between plastics and metals, especially polyacecool and iron, in view of the lubricating elements of ball joints. As a result of repeated research,
25℃ obtained from polymerized fatty acid polyamide and oleic acid
It has been discovered that an addition salt with a viscosity of 10,000 to 100,000 cP significantly reduces the operating torque of a ball joint), and a lubricant composition for ball joints containing the addition salt as a substantial component can achieve the intended purpose. The present inventors have discovered that it is possible to achieve the following, and have now completed the present invention.
すなわち本発明は、潤滑剤の構成成分中、液体成分の５
０％以上が重合脂肪酸ポリアミドとオレイン酸から得ら
れる２５°Ｃの粘度が１００００から１００００００ｃ
Ｐの付加塩であり、残部がワックス類である。In other words, the present invention provides for the liquid component 5 among the constituent components of the lubricant.
0% or more is obtained from polymerized fatty acid polyamide and oleic acid, and the viscosity at 25°C is 10,000 to 1,000,000c.
It is an addition salt of P, and the remainder is wax.
また、前記重合脂肪酸ポリアミドは、エチレンジアミン
とポリエチレンポリアミンの少なくとも一方と、炭素数
３６の２塩基酸を生成分とした重合脂肪酸を縮合して得
られるアミン価１８０から５００の化合物として特徴づ
けられる。The polymerized fatty acid polyamide is characterized as a compound having an amine value of 180 to 500 obtained by condensing at least one of ethylene diamine and polyethylene polyamine with a polymerized fatty acid containing a dibasic acid having 36 carbon atoms as a product.
（実施例及び作用）
本発明のボールジヨイント用潤滑剤組成物の特徴は、そ
の構成成分中、液体成分の５０％以上が重合脂肪酸ポリ
アミドとオレイン酸から得られる２５°Ｃの粘度が１０
０００から１００００００ｃＰの付加塩であり、残部が
ワックス類から構成されていることにある。(Examples and Effects) The lubricant composition for ball joints of the present invention is characterized by having a viscosity of 10% at 25°C, in which 50% or more of the liquid component is obtained from polymerized fatty acid polyamide and oleic acid.
It is an addition salt of 000 to 1,000,000 cP, with the remainder consisting of waxes.
このうち、本発明における重合脂肪酸ポリアミドは、エ
チレンジアミンとポリエチレンポリアミンの少なくとも
一方と、炭素数３６の２塩基酸を主成分とした重合脂肪
酸を縮合して得られるアミン価１８０から５００の化合
物である。Among these, the polymerized fatty acid polyamide in the present invention is a compound having an amine value of 180 to 500 obtained by condensing at least one of ethylenediamine and polyethylene polyamine with a polymerized fatty acid mainly composed of a dibasic acid having 36 carbon atoms.
上記重合脂肪酸ポリアミドは、エポキシ樹脂の硬化剤と
して広く使用されているポリアミド樹脂を指し、垣内弘
編著［新エポキシ樹脂Ｊ （１９８５）昭晃堂Ｐ、２
０８に記載されるように、主として、重合脂肪酸とポリ
アミンの縮合により生成するもので分子内に反応性の第
−及び第ニアミノ基を有するポリアミドアミンで公知の
化合物である。The above-mentioned polymerized fatty acid polyamide refers to a polyamide resin widely used as a curing agent for epoxy resin.
As described in No. 08, it is mainly produced by the condensation of a polymerized fatty acid and a polyamine, and is a known compound as a polyamide amine having reactive primary and secondary amino groups in the molecule.
しかし、重合脂肪酸ポリアミドとオレイン酸から得られ
る付加塩が、潤滑剤の主要成分として用いられたことは
ないと共に、特に潤滑性に優れていることは本発明によ
り見出されたことである。However, it has been discovered by the present invention that an addition salt obtained from a polymerized fatty acid polyamide and oleic acid has never been used as a main component of a lubricant, and that it has particularly excellent lubricity.
また、前述した付加塩の２５℃の粘度が特に１ｏｏｏｏ
から１００００００ｃＰの範囲において、好ましい潤滑
性能が得られる。即ち、第１図に基油粘度（０２５℃）
とボールジヨイントの作動トルクの関係が示されるよう
に、粘度１００００ｃＰ以下ではボールジヨイントの作
動トルクの低下が少ない傾向が認められ、一方、粘度１
００００００ｃＰ以上では粘着性の増加によりボールジ
ヨイントの作動トルクを逆に高くなり、測定がほとんど
困難となる。更に、原料の重合脂肪酸ポリアミドのアミ
ン価が５００を越したものに関しては、市販原料として
入手が難しく実用性に欠ける本発明のボールジヨイント
用潤滑剤組成物をボールジヨイントの作用面に適用する
ことによって、重合脂肪酸ポリアミドとオレイン酸から
得られる付加塩の粘度が極めて高い事による潤滑膜厚さ
の増加作用に加え、付加塩自体が高い極性を有する事に
よるプラスチックと金属に対する良好な濡れ性から、優
れた潤滑性能が得られる。そのため、ボールジヨイント
の作動トルクを著しく低下させることが可能となった。In addition, the viscosity of the above-mentioned addition salt at 25°C is particularly 1oooo
Favorable lubrication performance is obtained in the range from 1,000,000 cP to 1,000,000 cP. That is, Fig. 1 shows the base oil viscosity (025°C).
As shown in the relationship between the ball joint's operating torque and the ball joint's operating torque, there is a tendency for the ball joint's operating torque to decrease less when the viscosity is 10,000 cP or less;
If the temperature exceeds 000000 cP, the operating torque of the ball joint becomes higher due to increased tackiness, making measurement almost difficult. Furthermore, when the raw material polymerized fatty acid polyamide has an amine value exceeding 500, the ball joint lubricant composition of the present invention, which is difficult to obtain as a commercially available raw material and lacks practicality, is applied to the working surface of the ball joint. In addition to the effect of increasing the thickness of the lubricating film due to the extremely high viscosity of the addition salt obtained from polymerized fatty acid polyamide and oleic acid, the addition salt itself has high polarity, resulting in good wettability for plastics and metals. , excellent lubrication performance can be obtained. Therefore, it has become possible to significantly reduce the operating torque of the ball joint.
また、本発明におけるワックス類は、天然ワックス、鉱
油系ないしは合成系の各種ワックスが使用でき、具体的
にはモンタンワックス、カルナウバワックス、高級脂肪
酸のアミド化合物、パラフィンワックス、マイクロクリ
スタリンワックス、ポリオレフィンワックス、エステル
ワックスなどが挙げられる。更に、本発明におけるボー
ルジヨイント用潤滑剤組成物はボールジヨイントに組み
込まれて長期に使用されるので、漏洩を避けるためには
固体、または半固体状である事が必要であるが、ワック
ス類の含有量が潤滑剤の構成成分中５０％を越すと、潤
滑剤として堅（なり過ぎて潤滑性が低下する。Furthermore, the waxes used in the present invention can be natural waxes, mineral oil-based waxes, or various synthetic waxes, such as montan wax, carnauba wax, amide compounds of higher fatty acids, paraffin wax, microcrystalline wax, and polyolefin wax. , ester wax, etc. Furthermore, since the lubricant composition for ball joints of the present invention is incorporated into ball joints and used for a long period of time, it needs to be in solid or semi-solid form to avoid leakage. If the content of these substances exceeds 50% of the lubricant components, the lubricant becomes too hard and its lubricity decreases.
本発明におけるボールジヨイント用潤滑剤組成物は、そ
の性質を変えることなしに、上記した必須成分の他に各
種の添加剤を加えることができる。The ball joint lubricant composition of the present invention can contain various additives in addition to the above-mentioned essential components without changing its properties.
例えば他の酸化防止剤、防錆剤、防蝕剤などを加えて更
に潤滑剤組成物の性能を向上させることができる。For example, other antioxidants, rust inhibitors, corrosion inhibitors, etc. can be added to further improve the performance of the lubricant composition.
以下、実施例を挙げて本発明の内容を具体的に説明する
。Hereinafter, the content of the present invention will be specifically explained with reference to Examples.
尖立且ユ
重合脂肪酸ポリアミド（アミン価４０４、粘度３３００
ｃＰ ＠２５°Ｃ）２５．７ｇとオレイン酸５１．８
ｇを室温にて混合させた。付加塩は液状で粘度は、４２
００００ｃＰ ＠２５°Ｃであった。得られた付加塩
にエチレンビスステアロアミド２２．５ｇを加え加熱溶
解させた。室温まで冷却後３段ロールミルで混練し目的
の潤滑剤組成物を得た。Sharp polymerized fatty acid polyamide (amine value 404, viscosity 3300
cP @25°C) 25.7g and oleic acid 51.8g
g were mixed at room temperature. Addition salt is liquid and has a viscosity of 42
It was 0000cP @25°C. 22.5 g of ethylene bisstearamide was added to the obtained addition salt and dissolved by heating. After cooling to room temperature, the mixture was kneaded in a three-roll mill to obtain the desired lubricant composition.
夫凰勇１
重合脂肪酸ポリアミド（アミン価３８２、粘度４００ｃ
Ｐ ＠７５°Ｃ）２５．８ｇとオレイン酸４９．２ｇ
を室温にて混合させた。付加塩は液状で粘度は、２２０
０００ｃＰ ＠２５°Ｃであった。得られた付加塩に
エチレンビスステアロアミド２５．０ｇを加熱溶解させ
た後は実施例１に同じ支立盤ユ
重合脂肪酸ポリアミド（アミン価４０４、粘度３３００
ｃＰ ＠２５°Ｃ）１９．４ｇ、３−メトキシプロピ
ルアミン４．５ｇ、及びオレイン酸５１．１ｇを室温に
て混合させた。付加塩は液状で粘度は、２４０００ｃＰ
＠２５°Ｃであった。得られた付加塩にエチレンビ
スステアロアミド２５．０ｇを加え加熱溶解させた後は
実施例１に同じ支胤盤１
重合脂肪酸ポリアミド（アミン価２３０、粘度３１００
ｃｐ ＠７５°Ｃ）４６．５ｇとオレイン酸４０．１
ｇを室温にて混合させた。付加塩は液状で粘度は、５０
００００ｃｐ ＠２５°Ｃであった。得られた付加塩
にエチレンビスステアロアミド２５．０ｇを加え加熱溶
解させた後は実施例１ ゛に同じ。Fuoyu 1 Polymerized fatty acid polyamide (amine value 382, viscosity 400c
P @75°C) 25.8g and oleic acid 49.2g
were mixed at room temperature. Addition salt is liquid and has a viscosity of 220
000cP @25°C. After heating and dissolving 25.0 g of ethylene bis stearamide in the obtained addition salt, the same support plate as in Example 1 was prepared using polymerized fatty acid polyamide (amine value 404, viscosity 3300).
cP @25°C), 4.5 g of 3-methoxypropylamine, and 51.1 g of oleic acid were mixed at room temperature. Addition salt is liquid and has a viscosity of 24,000 cP.
It was @25°C. After adding 25.0 g of ethylene bis stearamide to the obtained addition salt and dissolving it by heating, the same seeding board 1 as in Example 1 was prepared. Polymerized fatty acid polyamide (amine value 230, viscosity 3100
cp @75°C) 46.5g and oleic acid 40.1
g were mixed at room temperature. Addition salt is liquid and has a viscosity of 50
It was 0000cp @25°C. The procedure was the same as in Example 1, except that 25.0 g of ethylene bisstearamide was added to the obtained addition salt and dissolved by heating.
之較■ユ
重合脂肪酸ポリアミド（アミン価４０４、粘度３３００
ｃＰ ＠２５°Ｃ）１２．９ｇ、３−メトキシプロピ
ルアミン９．１ｇ、及びオレイン酸５３．０ｇを室温に
て混合させた。付加塩は液状で粘度、４０００ｃＰ
＠２５°Ｃであった。得られた付加塩にエチレンビスス
テアロアミド２５．０ｇを加え加熱溶解させた。室温ま
で冷却後３段ロールミルで混練し比較の潤滑剤組成物を
得た。Comparison ■ Polymerized fatty acid polyamide (amine value 404, viscosity 3300
cP @25°C), 9.1 g of 3-methoxypropylamine, and 53.0 g of oleic acid were mixed at room temperature. Addition salt is liquid and has a viscosity of 4000 cP.
It was @25°C. 25.0 g of ethylene bisstearamide was added to the obtained addition salt and dissolved by heating. After cooling to room temperature, the mixture was kneaded in a three-roll mill to obtain a comparative lubricant composition.
ル較■遣
３−メトキシプロピルアミン１８．１ｇ、及びオレイン
酸５６．９ｇを室温にて混合させた。付加塩は液状で粘
度は、５６０ｃＰ ＠２５°Ｃであった。得られた付
加塩にエチレンビスステアロアミド２５．０ｇを加え加
熱溶解させた後は比較例■に同じ。18.1 g of 3-methoxypropylamine and 56.9 g of oleic acid were mixed at room temperature. The addition salt was liquid and had a viscosity of 560 cP @25°C. After adding 25.0 g of ethylene bisstearamide to the obtained addition salt and heating and dissolving it, the same procedure as in Comparative Example (2) was carried out.
塩校五ｌ
デュオミーンエージオレート系市販ポールジヨイント用
潤滑剤。抽出油粘度は９００ｃＰ＠４０°Ｃであった。A commercially available lubricant for pole joints based on Duomine Ageolate. The extracted oil viscosity was 900 cP @ 40°C.
次に、鋼鉄製ボールスタッドと含油ポリアセタール製ベ
アリングならびに鋼鉄製ソケットで構成されているボー
ルジヨイントに上記した実施例１．２．３及び比較例３
２．３各試料の潤滑剤組成物を封入して、下記のような
性能評価を行った。Next, Example 1.2.3 and Comparative Example 3 described above were applied to a ball joint composed of a steel ball stud, an oil-impregnated polyacetal bearing, and a steel socket.
2.3 The lubricant composition of each sample was sealed and the following performance evaluation was performed.
■ボールジヨイント作動トルクテスト
作動トルクの測定はソケットを固定し、スタッド球中心
からある一定の長さとなる治具をスタッ白こ取付け、そ
の長さ部分における作動時の力を常温において計測する
ことにより、作動トルクとした。また測定装置を放置し
た状態で初めて起動させる時のトルクを初動トルク、ス
タッドを５〜１０回捻回させた後のトルクを定常トルク
とした。■Ball joint operating torque test To measure operating torque, fix the socket, attach a jig that has a certain length from the center of the stud ball, and measure the operating force at that length at room temperature. The operating torque was calculated as follows. Further, the torque when starting the measuring device for the first time after being left unused was defined as initial torque, and the torque after twisting the stud 5 to 10 times was defined as steady torque.
試験結果は下記の表１に示される如く、本発、４
明による実施例１．２、ｋ関しては初動トルクが大きく
減少し、しかも定常トルクとの差も縮小されている。こ
のことから、各比較例に比べ本発明の潤滑剤を用いた場
合、トルク値を低く抑えられることが認められる。As shown in Table 1 below, the test results show that in Examples 1.2 and k according to the present invention, the initial torque is greatly reduced, and the difference from the steady torque is also reduced. From this, it is recognized that the torque value can be kept low when the lubricant of the present invention is used compared to each comparative example.
族１．ボールジヨイント試験結果
（単位ｋｇｆ−ｍ）
■ボールジヨイント耐久テスト
耐久度は、ポールスタッドのリフト量変化で測定される
。リフト量とは、ハウジングを固定しポールスタッドに
所定方向の所定荷重を静的に加えた時のハウジングに対
するポールスタッドの相対移動量を言い、本試験では常
温で軸線方向の耐久荷重３００ｋｇを加えて１００万回
の回転揺動耐久テストを行った後のリフト量を測定した
。Family 1. Ball joint test results (unit: kgf-m) ■Ball joint durability test Durability is measured by the change in lift amount of the pole stud. Lift amount refers to the amount of relative movement of the pole stud to the housing when the housing is fixed and a predetermined load in a predetermined direction is statically applied to the pole stud.In this test, a durable load of 300 kg in the axial direction was applied at room temperature. The lift amount was measured after performing a rotational oscillation durability test of 1 million times.
試験結果を２図に、耐久度をポールスタッドのリフト量
で示す。第２図から明らかなように、本発明による潤滑
剤を封入した場合は従来品（比較例３）を用いた場合に
比ベリフト量が低く抑えられ、著しく耐久性が向上して
いることが認められる。The test results are shown in Figure 2, and the durability is shown in terms of lift amount of the pole stud. As is clear from Figure 2, when the lubricant according to the present invention is sealed, the relative lift amount is suppressed to a lower level than when the conventional product (Comparative Example 3) is used, and the durability is significantly improved. It will be done.
＝発明の効果＝
以上のように本発明によれば潤滑剤の構成成分中、液体
成分の５０％以上が重合脂肪酸ポリアミドとオレイン酸
とから得られる２５°Ｃの粘度が１００００からＩ ０
０００００ｃＰの付加塩であるので、重合脂肪酸ポリア
ミドとオレイン酸から得られる付加塩の粘度が極めて高
い事による潤滑膜厚さの増加作用に加え、付加塩自体が
高い極性を有する事によるプラスチクラスと金属に対す
る良好な濡れ性から、優れた潤滑性能が得られる。その
ため、本発明の潤滑剤組成物をボールジヨイントに適用
することにより、優れた耐久性が得られると共に、ボー
ルジヨイントの作動トルクを所定の低い値で安定させる
ことが実現され得る。=Effects of the Invention= As described above, according to the present invention, 50% or more of the liquid component among the constituent components of the lubricant is obtained from polymerized fatty acid polyamide and oleic acid, and the viscosity at 25°C is from 10,000 to I0.
Since it is an addition salt of 00,000 cP, the viscosity of the addition salt obtained from polymerized fatty acid polyamide and oleic acid is extremely high, which increases the thickness of the lubricating film, and the addition salt itself has high polarity, which increases the effect of increasing the thickness of the plasticlas and metals. Excellent lubrication performance can be obtained from good wettability to Therefore, by applying the lubricant composition of the present invention to a ball joint, it is possible to obtain excellent durability and to stabilize the operating torque of the ball joint at a predetermined low value.
第１図は、潤滑剤組成物の基油粘度とボールジヨイント
の作動トルクの関係を表すグラフである。
第２図は本発明の潤滑剤組成物と従来例の市販潤滑剤を
使用した場合の耐久性能を示すグラフである。
協同油脂株式会社
窟FIG. 1 is a graph showing the relationship between the base oil viscosity of a lubricant composition and the operating torque of a ball joint. FIG. 2 is a graph showing the durability performance when the lubricant composition of the present invention and a conventional commercially available lubricant are used. Kyodo Yushi Co., Ltd.
Claims (1)
脂肪酸ポリアミドとオレイン酸から得られる２５℃の粘
度が１００００から１００００００ｃＰの付加塩であり
、残部がワックス類であることを特徴とするボールジョ
イント用潤滑剤組成物。 ２、重合脂肪酸ポリアミドが、エチレンジアミンとポリ
エチレンポリアミンの少なくとも一方と、炭素数３６の
２塩基酸を主成分とした重合脂肪酸を縮合して得られる
アミン価１８０から５００の化合物である特許請求範囲
第１項記載のボールジョイント用潤滑剤組成物。[Claims] 1. Among the components of the lubricant, 50% or more of the liquid component is an addition salt obtained from polymerized fatty acid polyamide and oleic acid and has a viscosity of 10,000 to 1,000,000 cP at 25°C, and the remainder is wax. A lubricant composition for a ball joint, characterized in that: 2. The polymerized fatty acid polyamide is a compound having an amine value of 180 to 500 obtained by condensing at least one of ethylene diamine and polyethylene polyamine with a polymerized fatty acid mainly composed of a dibasic acid having 36 carbon atoms. A lubricant composition for ball joints as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30467590A JP2960150B2 (en) | 1990-11-09 | 1990-11-09 | Lubricant composition for ball joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30467590A JP2960150B2 (en) | 1990-11-09 | 1990-11-09 | Lubricant composition for ball joints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04178498A true JPH04178498A (en) | 1992-06-25 |
| JP2960150B2 JP2960150B2 (en) | 1999-10-06 |
Family
ID=17935874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30467590A Expired - Fee Related JP2960150B2 (en) | 1990-11-09 | 1990-11-09 | Lubricant composition for ball joints |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2960150B2 (en) |
-
1990
- 1990-11-09 JP JP30467590A patent/JP2960150B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2960150B2 (en) | 1999-10-06 |
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