JPH03217497A - Grease composition - Google Patents
Grease compositionInfo
- Publication number
- JPH03217497A JPH03217497A JP1445390A JP1445390A JPH03217497A JP H03217497 A JPH03217497 A JP H03217497A JP 1445390 A JP1445390 A JP 1445390A JP 1445390 A JP1445390 A JP 1445390A JP H03217497 A JPH03217497 A JP H03217497A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- grease composition
- grease
- composition according
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 64
- 239000004519 grease Substances 0.000 title claims abstract description 48
- 239000002199 base oil Substances 0.000 claims abstract description 14
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004094 surface-active agent Substances 0.000 claims abstract description 9
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 8
- 229920001451 polypropylene glycol Polymers 0.000 claims abstract description 8
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 7
- 239000000194 fatty acid Substances 0.000 claims abstract description 7
- 229930195729 fatty acid Natural products 0.000 claims abstract description 7
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 7
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 7
- 150000001346 alkyl aryl ethers Chemical class 0.000 claims abstract description 5
- 239000002734 clay mineral Substances 0.000 claims abstract description 5
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 229920005862 polyol Polymers 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- -1 neopentyl polyol Chemical class 0.000 claims description 6
- 229910003002 lithium salt Inorganic materials 0.000 claims description 5
- 159000000002 lithium salts Chemical class 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- 150000003606 tin compounds Chemical class 0.000 claims description 4
- 239000005416 organic matter Substances 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000006078 metal deactivator Substances 0.000 claims description 2
- 150000003336 secondary aromatic amines Chemical class 0.000 claims description 2
- 229910001887 tin oxide Inorganic materials 0.000 claims 2
- 230000003078 antioxidant effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 23
- 229910052802 copper Inorganic materials 0.000 abstract description 18
- 239000010949 copper Substances 0.000 abstract description 18
- 150000002148 esters Chemical class 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 239000012212 insulator Substances 0.000 description 9
- 238000009472 formulation Methods 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 description 3
- 150000003077 polyols Chemical class 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- 229910052901 montmorillonite Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- OGQYPPBGSLZBEG-UHFFFAOYSA-N dimethyl(dioctadecyl)azanium Chemical compound CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC OGQYPPBGSLZBEG-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 1
- 229910000271 hectorite Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- FPLIHVCWSXLMPX-UHFFFAOYSA-M lithium 12-hydroxystearate Chemical compound [Li+].CCCCCCC(O)CCCCCCCCCCC([O-])=O FPLIHVCWSXLMPX-UHFFFAOYSA-M 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000004867 thiadiazoles Chemical class 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明はグリース組成物、特に大電流の条件下で開閉
されるスイッチの銅系摺動接点用グリースとして好適な
耐摩耗性のグリース組成物に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a grease composition, particularly a wear-resistant grease composition suitable as a grease for copper-based sliding contacts of switches that are opened and closed under conditions of large currents.
従来の技術
自動車等の車両には、高い安全性を確保するために各種
の機器類や装置が搭載されるようになり、これに伴って
耐久性に優れた小型スイッチが要請されている。この種
のスイッチには、多機能低コスト等の観点から、負荷直
切り型の銅系接点を用いることが望ましいとされている
。BACKGROUND OF THE INVENTION Vehicles such as automobiles have come to be equipped with various devices and devices to ensure high safety, and as a result, there has been a demand for small switches with excellent durability. For this type of switch, it is desirable to use a direct load switching type copper contact from the viewpoint of multifunction and low cost.
しかしながら、この種のスイッチは開閉時のアーク熱や
摩擦熱だけでなく、腐食性環境や高接触圧等にさらされ
るために、銅接点の酸化と摩耗が進行し易いという問題
があり、その解決が要請されている。However, this type of switch is exposed not only to arc heat and frictional heat during opening and closing, but also to corrosive environments and high contact pressure, which causes the copper contacts to easily oxidize and wear out. is requested.
本件出願人は先に、銅接点の酸化と摩耗の進行を有効に
防止し得る耐摩耗性のグリース組成物を提供した(特開
平1−182397号公報参照)。The present applicant has previously provided a wear-resistant grease composition that can effectively prevent the progress of oxidation and wear of copper contacts (see Japanese Patent Laid-Open No. 1-182397).
発明が解決しようとする課題
この発明は、該グリース組成物に改良を加え、耐熱性に
優れ、銅接点に高い繰返し耐久性能を付与するグリース
を提供するためになされたものである。Problems to be Solved by the Invention The present invention has been made in order to improve the grease composition and provide a grease that has excellent heat resistance and provides high repeated durability performance to copper contacts.
課題を解決するだめの手段
即ちこの発明は、一般式(I):
CH3
(式中、Rは分枝鎖を有することもある炭素原子数1〜
l8のアルキル基を示し、nは2〜40の整数を示す)
で表わされるポリオキシプロピレングリコールモノアル
キルエーテル、不オペンチルポリオールおよび/または
不才ペンチルボリオールエステルを80重量%以上含有
する基油100重量部、高級脂肪酸のリチウム塩および
/または有機物親和性の第4級アンモニウム塩処理粘土
鉱物5〜40重量部およびホスホン酸系界面活性剤0.
05〜3重量部含有するグリース組成物に関する。A means to solve the problem, that is, the present invention, is based on the general formula (I):
18 alkyl group, n is an integer from 2 to 40) A base oil containing 80% by weight or more of a polyoxypropylene glycol monoalkyl ether, an inopentyl polyol and/or an inactive pentyl polyol ester represented by 100 parts by weight, 5 to 40 parts by weight of a clay mineral treated with a lithium salt of a higher fatty acid and/or a quaternary ammonium salt having an affinity for organic matter, and 0.0 parts by weight of a phosphonic acid surfactant.
05 to 3 parts by weight of the grease composition.
基油の成分である一般式(1)で表わされるポリオキシ
プロピレングリコールモノアルキルエーテルは、例えば
プロピレンオキサイドに多価アルコール、例エハエチレ
ングリコール、プロピレンクリコールおよびブチレング
リコール等のアルキレングリコールを常法により付加重
合させることによって調製されるオリゴマーである。The polyoxypropylene glycol monoalkyl ether represented by the general formula (1), which is a component of the base oil, can be obtained by adding a polyhydric alcohol, such as an alkylene glycol such as ethylene glycol, propylene glycol, or butylene glycol, to propylene oxide in a conventional manner. It is an oligomer prepared by addition polymerization.
式(I)において、Rは分枝鎖を有することもある炭素
原子数1〜18のアルキル基を示し、nは2〜40、好
ましくは8〜30の整数を示す。In formula (I), R represents an alkyl group having 1 to 18 carbon atoms which may have a branched chain, and n represents an integer of 2 to 40, preferably 8 to 30.
本発明に使用する基油は上記ポリオキシプロピレングリ
コールモノアルキJレエーテル、ネオベンチルポリオー
ルおよび/またはネオペンチルボリオールエステルを8
0重量%以上含有する。この種の油は熱分解での煤の生
成が少いものであるが、これらの成分の含有量が80重
量%よりも少ない場合には、この煤生成が少いと言う特
徴が弱くなる。The base oil used in the present invention contains the above-mentioned polyoxypropylene glycol monoalkyl ether, neobentyl polyol and/or neopentyl polyol ester.
Contains 0% by weight or more. This type of oil produces less soot during thermal decomposition, but when the content of these components is less than 80% by weight, this characteristic of producing less soot becomes weaker.
本発明に使用する基油には、上記成分のほかに洋平から
摺動培占用グリースのt浦虚分〉1,て堂用されている
もの、例えばα−才レフイン油などの炭化水素系合成油
等を20重量%以下の範囲内で適宜配合してもよい。In addition to the above-mentioned components, the base oils used in the present invention include those commonly used in sliding culture greases from Yohei, such as hydrocarbon-based synthetic oils such as α-refined oil. Oil or the like may be appropriately blended within a range of 20% by weight or less.
本発明によるグリース組成物は、上記基油に高級脂肪酸
のリチウム塩および/または有機物親和性の第4級アン
モニウム塩処理粘土鉱物、並びにホスホン酸系界面活性
剤を必須成分として所定量配合することによって調製さ
れる。The grease composition according to the present invention is produced by blending a predetermined amount of a lithium salt of a higher fatty acid and/or a quaternary ammonium salt-treated clay mineral having an affinity for organic matter, and a phosphonic acid surfactant as essential components into the base oil. prepared.
高級脂肪酸のリチウム塩としてはステアリン酸リチウム
および/または12−ヒドロキシステアリン酸リチウム
が例示される。Examples of lithium salts of higher fatty acids include lithium stearate and/or lithium 12-hydroxystearate.
有機物親和性の第4級アンモニウム塩処理粘土鉱物とし
てはジメチルジオクタデシルアンモニウムモンモリロナ
イト、ジメチルベンチルオクタデシルアンモニウムへク
トライト、モノアルキルベンジルトリアルキルアンモニ
ウム系化合物等の芳香族アンモニウム化合物含有モンモ
リロナイト、およびこれらの任意の混合物が例示される
。Examples of clay minerals treated with organic matter-compatible quaternary ammonium salts include dimethyldioctadecylammonium montmorillonite, dimethylbentyloctadecylammonium hectorite, montmorillonite containing aromatic ammonium compounds such as monoalkylbenzyltrialkylammonium compounds, and any of these. A mixture is exemplified.
これらの高級脂肪酸のリチウム塩および/また+右場物
相却妊箇笛A8易ア・ノキーカ八市棚卯舷手鉱物の配合
量は上記の基油100重量部に対して、5〜40重量部
、好ましくは5〜30重量部であり、5重量部以下の場
合には、摺動接点グリースに使用した場合耐摩耗性が低
下し、又グリースが軟らかくなり、剪断安定性が悪く軟
化流出してしまう。The amount of lithium salts of these higher fatty acids and/or minerals added is 5 to 40 parts by weight per 100 parts by weight of the above base oil. parts, preferably 5 to 30 parts by weight, and if it is less than 5 parts by weight, the wear resistance will decrease when used in sliding contact grease, and the grease will become soft, resulting in poor shear stability and softening and leakage. It ends up.
また、40重量部以上の場合には、グリースは硬すぎて
塗布性が悪くなる。Furthermore, if the amount is 40 parts by weight or more, the grease will be too hard and the applicability will be poor.
ホスホン酸系界面活性剤としては「セパール44110
0Jおよび[セバールB566J(中京油脂株式会社製
市販品)等が例示される。As a phosphonic acid surfactant, "Sepal 44110"
Examples include 0J and [Seval B566J (commercial product manufactured by Chukyo Yushi Co., Ltd.).
ホスホン酸系界面活性剤の配合量は上記の基油100重
量部に対して0,05〜3重量、好ましくは0.05〜
1重量部であり、0.05重量部以下の場合には、その
効果が少く、また、3重量部以上の場合には、高温腐食
環境でのホスホン酸による銅板腐食が進む傾向にある。The blending amount of the phosphonic acid surfactant is 0.05 to 3 parts by weight, preferably 0.05 to 3 parts by weight, per 100 parts by weight of the above base oil.
If it is 1 part by weight or less, the effect will be small if it is less than 0.05 part by weight, and if it is more than 3 parts by weight, corrosion of the copper plate by phosphonic acid tends to progress in a high-temperature corrosive environment.
本発明によるグリース組成物には上記成分のほかに、所
望により錫微粉末を配合し、これによって、摺動面の油
切れによる摩耗および銅粉末の凝集と絶縁体上のグリス
塗布面への付着とこれによる第4図〜第14図に示され
る耐久回数を重ねた場合の絶縁抵抗の低下をさらに効果
的に防止してもよい。In addition to the above-mentioned components, the grease composition according to the present invention contains fine tin powder, if desired, to prevent wear due to lack of oil on the sliding surface, agglomeration of copper powder, and adhesion to the grease-applied surface of the insulator. This may further effectively prevent a decrease in insulation resistance when the durability cycles shown in FIGS. 4 to 14 are repeated.
錫微粉末の粒径は通常5〜lOμ以下であり、その配合
量は、上記の基油100重量部に対して2〜15重量部
、好ましくは2〜10重量部であり、2重量部以下は効
果がなく、15重量以上になると摺動面の機械的摩耗を
増大させるので好ましくない。The particle size of the fine tin powder is usually 5 to 10μ or less, and the blending amount is 2 to 15 parts by weight, preferably 2 to 10 parts by weight, and 2 parts by weight or less per 100 parts by weight of the above base oil. is not effective, and if the weight exceeds 15, it increases mechanical wear on the sliding surface, which is not preferable.
更に本発明によるグリース組成物には上記成分の代りに
又はこれに加えて、1μ以下(0.02〜0.2μ程度
)の二酸化錫超微粉末、又は空気中400°C前後の高
温加熱で二酸化錫を生成する有機錫化合物を基油100
重量部に対し生成Sn○2の量に換算して0.01−1
重量部配合してもよい。Furthermore, in place of or in addition to the above-mentioned components, the grease composition according to the present invention contains ultrafine tin dioxide powder of 1μ or less (approximately 0.02 to 0.2μ), or ultrafine tin dioxide powder heated in air at a high temperature of around 400°C. Base oil 100% of organic tin compound that produces tin dioxide
0.01-1 in terms of amount of Sn○2 produced per part by weight
It may be added in parts by weight.
この場合、前記錫粉末より微細のため少量配合で前記の
効果をあげさせる。有機錫化合物としては一般式(■)
:
RnSnX*−n (II)〔式中
、Rは炭素原子数1〜12のアルキル基またはフェニル
基を示し、XはS ( C H 2)mC O○R’(
式中、R′は炭素原子数1〜22のアルキル基またはフ
ェニル基を示し、mは1〜8の数を示す)を示し、nは
1または2の数を示す〕で表わされる化合物が例示され
る。In this case, since it is finer than the tin powder, the above effect can be achieved by adding a small amount. General formula (■) for organic tin compounds
: RnSnX*-n (II) [In the formula, R represents an alkyl group having 1 to 12 carbon atoms or a phenyl group, and X is S (CH 2)mCO○R'(
In the formula, R' represents an alkyl group or phenyl group having 1 to 22 carbon atoms, m represents a number of 1 to 8), and n represents a number of 1 or 2. be done.
この超微粉又は有機錫化合物も0.01重量部より少い
と効果がなく、1重量部以上多くする必要もない。This ultrafine powder or organic tin compound has no effect if it is less than 0.01 part by weight, and there is no need to use more than 1 part by weight.
なお、銅粉末と錫微粉末の凝集は前記のホスホン酸系界
面活性剤の作用によって防止される。Incidentally, aggregation of the copper powder and the fine tin powder is prevented by the action of the phosphonic acid surfactant.
本発明によるグリース組成物には、所望によりさらに常
套の添加剤、例えば金属不活性剤(ペンゾトリアゾール
類、チアジアゾール類、N,N″ジサリチリデン−1,
2−ジアミノプロパン等)、第2級芳香族アミン系酸化
防止剤(ジフエニルアミン、7エニルナフチルアミン、
ンフェニルーpフ二二レンジアミン、ジオクチルジフエ
ニルアミン等)、フェノール系酸化防止剤(2.6−シ
t −ブチルーn−メチルフェノール等)および増粘剤
(液状ポリブタジエン、オレフィン系増粘剤等)等を適
宜配合してもよい。The grease composition according to the invention may optionally further contain conventional additives, such as metal deactivators (penzotriazoles, thiadiazoles, N,N'' disalicylidene-1,
2-diaminopropane, etc.), secondary aromatic amine antioxidants (diphenylamine, 7-enylnaphthylamine,
phenolic antioxidants (2,6-butyl-n-methylphenol, etc.), and thickeners (liquid polybutadiene, olefin thickeners, etc.) etc. may be blended as appropriate.
作 用
本発明によるグリース組成物を銅系摺動接点用グリース
として使用した場合、ホスホン酸系界面活性剤が接点の
摩耗で発生する銅粉末に吸着するので凝着摩耗がへり、
絶縁劣化をもたらす銅粉末の絶縁体上のグリース塗布面
への凝集付着が効果的に防止される。Function When the grease composition according to the present invention is used as a grease for copper-based sliding contacts, the phosphonic acid-based surfactant adsorbs to copper powder generated by contact wear, reducing adhesive wear.
Coagulation and adhesion of copper powder to the greased surface of the insulator, which causes insulation deterioration, is effectively prevented.
また、該グリース組成物にさらに高温で酸化して二酸化
錫になる錫微粉末及び二酸化錫微粉末を配合することに
よって、接点間にミクロンオーダーの間隙が形成され、
該間隙に油成分が毛管現象によって浸透するので、接点
における油切れや摩耗か有効に防止されるだけでなく、
該微粉末は.高エネルギーの電気アークによって基油成
分が熱分解して発生する水素ラジカルや媒の酸化触媒と
しても作用するので、媒(CoやC)が酸化してC02
となり、グリース炭化物の生成量が低減すると共に水素
ラジカルが減少しこれによる銅接点摩耗粉末の清浄化(
還元)とこれに伴う凝着摩耗の減少でグリース塗布面へ
の銅粉末の凝集付着が一層効果的に抑制される。Furthermore, by adding fine tin powder and fine tin dioxide powder to the grease composition which oxidize at high temperatures to form tin dioxide, a gap on the order of microns is formed between the contacts.
Since the oil component permeates into the gap by capillary action, it not only effectively prevents oil loss and wear at the contact points, but also
The fine powder is. It also acts as an oxidation catalyst for the hydrogen radicals and medium generated by thermal decomposition of base oil components by high-energy electric arc, so the medium (Co and C) is oxidized and CO2 is released.
As a result, the amount of grease carbide produced is reduced, hydrogen radicals are reduced, and copper contact wear powder is cleaned (
reduction) and the accompanying reduction in adhesive wear, the agglomeration and adhesion of copper powder to the greased surface is more effectively suppressed.
以下、本発明を実施例によって説明する。Hereinafter, the present invention will be explained by examples.
実施例
■.グリース組成物の調製
実施例1
表−1の配合処方によるグリース組成物lを次の様にし
て調製した。Example■. Preparation of Grease Composition Example 1 Grease composition 1 having the formulation shown in Table 1 was prepared as follows.
ポリオキシプロピレングリコールモノエーテル、α−オ
レフィン重合油およびステアリン酸リチウムを十分に攪
拌混合した後、加熱下で混合物の温度が185°Cにな
るまで攪拌を続行し、加熱を止めて放冷しながら攪拌を
続け、混合物の温度が60゜Cになった時点で第4級ア
ンモニウム塩含有粘土を加えて十分混合した。次いでメ
チルアルコールを加えて十分に混合した後、再度加熱し
、混合物の温度が100°Cになった時点で加熱を止め
、ペンゾトリアゾールおよび2.6−ジターシャリーブ
チル一〇一メチルフェノールを添加し、混合物を室温ま
で放冷した後、ホスホン酸離型剤、ミクロンオーダーの
錫粉末を添加し混合した後、三段ロールによる仕上げ処
理に付した。After sufficiently stirring and mixing the polyoxypropylene glycol monoether, α-olefin polymerized oil, and lithium stearate, stirring was continued under heating until the temperature of the mixture reached 185°C, then the heating was stopped and the mixture was left to cool. Stirring was continued, and when the temperature of the mixture reached 60°C, the quaternary ammonium salt-containing clay was added and thoroughly mixed. Next, methyl alcohol was added and mixed thoroughly, then heated again. When the temperature of the mixture reached 100°C, heating was stopped and penzotriazole and 2,6-ditertiary butyl 101 methylphenol were added. After the mixture was allowed to cool to room temperature, a phosphonic acid mold release agent and tin powder of micron order were added and mixed, and then subjected to finishing treatment using a three-stage roll.
得られたグリース組成物の性状を表−1に示す。Table 1 shows the properties of the obtained grease composition.
実施例2
表−1の配合処方によるグリース組成物2を次の様にし
て調製した。Example 2 Grease composition 2 having the formulation shown in Table 1 was prepared as follows.
ホリオーノレコンプレックスエステノレ、ポリオキシプ
ロピレングリコールモノエーテルおよびステアリン酸リ
チウムを十分に攪拌混合した後、加熱下で混合物の温度
が185゜Cになるまで攪拌を続行し、加熱を止めて放
冷しながら攪拌を続け、混合物の温度が100゜Cにな
った時点でペンゾトリアゾールおよび2.6−ジターシ
ャリーブチル=nメチルフェノールを添加し、混合物を
室温まで放冷した後、ホスホン酸離型剤、ミクロンオー
ダーの錫粉末を添加し、混合した後、三段ロールによる
仕上げ処理に付した。After sufficiently stirring and mixing the holionole complex ester, polyoxypropylene glycol monoether, and lithium stearate, stirring was continued under heating until the temperature of the mixture reached 185°C, then the heating was stopped and the mixture was allowed to cool. When the temperature of the mixture reached 100°C, penzotriazole and 2,6-ditertiarybutyl=n-methylphenol were added, and after the mixture was allowed to cool to room temperature, a phosphonic acid release agent was added. After adding and mixing micron-order tin powder, the mixture was subjected to finishing treatment using a three-stage roll.
得られたグリース組成物の性状を表−1に示す。Table 1 shows the properties of the obtained grease composition.
実施例3
表−1の配合飽方によるグリース組成物3を次の様にし
て調製した。Example 3 Grease composition 3 according to the formulation shown in Table 1 was prepared as follows.
ポリオールコンプレックスエステル、ポリオキシプロピ
レングリコールモノエーテルおよヒ第4級アンモニウム
塩含有粘土を十分に攪拌混合した後、メチルアルコール
を加えて十分に混合し、加熱下で混合物の温度がl00
゜Cになった時点で加熱を止め、ペンゾトリアゾールお
よび2.6−ジターシャリーブチルーn−メチルフェノ
ールを添加し、混合物を室温まで放冷した後、ホスホン
酸離型剤、ミクロンオーダーの錫粉末を添加し、混合し
た後、三段ロールによる仕上げ処理に付した。After sufficiently stirring and mixing the polyol complex ester, polyoxypropylene glycol monoether, and quaternary ammonium salt-containing clay, methyl alcohol was added and thoroughly mixed, and the mixture was heated to a temperature of 100 ml.
When the temperature reached °C, heating was stopped, penzotriazole and 2,6-ditertiarybutyl-n-methylphenol were added, and the mixture was allowed to cool to room temperature, followed by a phosphonic acid mold release agent and a micron-order tin. After the powder was added and mixed, it was subjected to a three-roll finishing treatment.
得られたグリース組成物の性状を表−1に示す。Table 1 shows the properties of the obtained grease composition.
実施例4
実施例lの手順に準拠し、表−1の配合処方によってグ
リース組成物4を調製した。Example 4 Based on the procedure of Example 1, grease composition 4 was prepared according to the formulation shown in Table 1.
この組成物の性状を表−1に示す。The properties of this composition are shown in Table-1.
実施例5
実施例3の手順に準拠し、表一1の配合処方によってグ
リース組成物5を調製した。Example 5 Based on the procedure of Example 3, grease composition 5 was prepared according to the formulation shown in Table 11.
この組成物の性状を表−1に示す。The properties of this composition are shown in Table-1.
比較例1および2
実施例1の手順に準拠し、表一1の配合処方によってグ
リース組成物1″及び2′を調製した。Comparative Examples 1 and 2 Based on the procedure of Example 1, grease compositions 1'' and 2' were prepared according to the formulations shown in Table 1.
これらの組成物の性状を表−1に示す。The properties of these compositions are shown in Table-1.
比較例3、5および6
実施例2の手順に準拠し、表−1の配合処方によってグ
リース組成物3′、5′及び6′を調製しlこ。Comparative Examples 3, 5 and 6 Grease compositions 3', 5' and 6' were prepared in accordance with the procedure of Example 2 and according to the formulations shown in Table 1.
これらの組成物の性状を表−1に示す。The properties of these compositions are shown in Table-1.
比較例4
実施例3の手順に準拠し、表−1の配合処方によってグ
リース組成物4′を調製した。Comparative Example 4 Grease composition 4' was prepared according to the procedure of Example 3 and the formulation shown in Table 1.
この組成物の性状を表−1に示す。The properties of this composition are shown in Table-1.
■.グリース組成物の性能
上記の様にして調製したグリース組成物1〜5および1
′〜6′のスイッチ耐久性能、低温可使性能および銅接
点の腐食性能を次の様にして測定し、結果を表−2に示
す。■. Performance of grease compositions Grease compositions 1 to 5 and 1 prepared as above
The switch durability performance, low-temperature usability performance, and corrosion performance of the copper contacts of '~6' were measured as follows, and the results are shown in Table 2.
テストサンプル:実際の摺動スイッチに類似した摺動ス
イッチとして第1図および第2図に示すテストサンプル
を作成した。第1図はテストサンプルの平面図であり、
第2図は第1図のA−A’線に沿った断面である。無機
フィラー(シリケートガラス)配合ナイロン66製イン
シュレータ(1)に銅製固定接点(2)を埋設し、接点
開閉部にエアーギャップ(3)を設けて固定子とした。Test sample: A test sample shown in FIGS. 1 and 2 was prepared as a sliding switch similar to an actual sliding switch. Figure 1 is a plan view of the test sample;
FIG. 2 is a cross section taken along line AA' in FIG. 1. A fixed copper contact (2) was embedded in an insulator (1) made of nylon 66 containing an inorganic filler (silicate glass), and an air gap (3) was provided at the contact opening/closing portion to form a stator.
インシュレータ(1)の表面に試料グリース(8)を塗
布する。Apply sample grease (8) to the surface of the insulator (1).
第1図において、(4)および(5)はそれぞれ可動接
点および常閉接点を示し(第3図参照)、点線はこれら
の接点の摺動軌跡を示す。In FIG. 1, (4) and (5) indicate a movable contact and a normally closed contact, respectively (see FIG. 3), and dotted lines indicate sliding trajectories of these contacts.
試験装置二上記のようにして作成したテストサンプル(
6)を第3図に示すモータ(7)に固定されたローター
に装着し、図示する様に荷重を印加し、モータを回転さ
せることによって所定の負荷を開閉させる(印加電圧:
DCl4V,負荷:ランブlSOW,負荷開閉速度:l
5回/分)。該開閉テストは5万回おこなう。エアーギ
ャップ(3)が介在する領域において、固定接点(2)
の縁部から3mm離れた位置におけるイナシュレータ(
1)の絶縁抵抗を測定する。Test equipment 2 Test sample prepared as above (
6) is attached to the rotor fixed to the motor (7) shown in Figure 3, a load is applied as shown in the figure, and the motor is rotated to open and close the specified load (applied voltage:
DC14V, load: Rambl SOW, load switching speed: l
5 times/min). The opening/closing test is performed 50,000 times. In the area where the air gap (3) intervenes, the fixed contact (2)
Insulator at a position 3 mm away from the edge of (
1) Measure the insulation resistance.
(2)低温可使性能
JIS−K2205に従い、−30°Cにおける起動ト
ルクと回転トルクを測定することによって評価した。(2) Low-temperature usability performance Evaluated by measuring starting torque and rotational torque at -30°C in accordance with JIS-K2205.
(3)銅接点の腐食性能
パフ仕上げした後、試料グリースを10mg/cm2で
塗布した銅板(0 .7cmX 7cmX 3mm)を
、60゜Cで95%RHの恒温槽中に120時間放置し
た後、その表面の変色情況を観察すると共に、接触抵抗
を測定する。(3) Corrosion performance of copper contacts After puff finishing, a copper plate (0.7 cm x 7 cm x 3 mm) coated with sample grease at 10 mg/cm2 was left in a constant temperature bath at 60°C and 95% RH for 120 hours. Observe the discoloration of the surface and measure the contact resistance.
接触抵抗は電気接点シミュレー夕を使用し通電電流lm
A,接触圧50gの条件下で測定した。The contact resistance is measured using an electric contact simulator, and the conducting current lm
A. Measured under the condition of a contact pressure of 50 g.
(以下、余白)
発明の効果
本発明によるグリース組成物は、特に大電流の条件下で
開閉されるスイッチの銅系摺動接点用グリースとして好
適な耐摩耗性のグリース組成物であって、耐熱性に優れ
、摺動接点の摩耗粉末の発生が少ないので、銅接点に高
い繰り返し耐久性能を付与し、高耐久性スイッチ、就中
、自動車用スイッチの有意な小型化を可能にする。(Hereinafter, blank spaces) Effects of the Invention The grease composition according to the present invention is a wear-resistant grease composition suitable as a grease for copper-based sliding contacts of switches that are opened and closed under conditions of large currents, and is heat-resistant. It has excellent durability and generates little abrasion powder at sliding contacts, giving copper contacts high repeated durability performance and making it possible to significantly downsize high-durability switches, especially automotive switches.
第1図はスイッチ耐久性能試験用のテストサンプルの平
面図である。
第2図は第1図のA−A’線に沿った断面図である。
第3図はスイッチ耐久性能の試験装置の断面図である。
第4図〜第8図はそれぞれグリース組成物1〜5を銅接
点に使用した場合のインシュレー夕の絶縁抵抗と耐久回
数との関係を示すグラフである。
第9図〜第14図はそれぞれグリース組成物1′〜6′
を銅接点に使用した場合のインシュレータの絶縁抵抗と
耐久回数との関係を示すグラフである。
(1)はインシュレー夕、(2)は銅製固定接点、(3
)はエアーギャップ、(4)は可動接点、(5)は常閉
接点、(6)はテストサンプル、(7)はモータ、(8
)は試料グリースを示す。FIG. 1 is a plan view of a test sample for a switch durability test. FIG. 2 is a sectional view taken along line AA' in FIG. 1. FIG. 3 is a sectional view of a switch durability test device. FIGS. 4 to 8 are graphs showing the relationship between the insulation resistance and the number of durability of insulators when Grease Compositions 1 to 5 are used for copper contacts, respectively. Figures 9 to 14 show grease compositions 1' to 6', respectively.
2 is a graph showing the relationship between insulation resistance and durability of an insulator when the insulator is used as a copper contact. (1) is an insulator, (2) is a copper fixed contact, (3 is
) is the air gap, (4) is the movable contact, (5) is the normally closed contact, (6) is the test sample, (7) is the motor, (8
) indicates sample grease.
Claims (1)
18のアルキル基を示し、nは2〜40の整数を示す) で表わされるポリオキシプロピレングリコールモノアル
キルエーテル、ネオペンチルポリオールおよび/または
ネオペンチルポリオールエステルを80重量%以上含有
する基油100重量部、高級脂肪酸のリチウム塩および
/または有機物親和性の第4級アンモニウム塩処理粘土
鉱物5〜40重量部およびホスホン酸系界面活性剤0.
05〜3重量部含有するグリース組成物。 2、錫微粉末を2〜15重量部含有する請求項1記載の
グリース組成物。 3、請求項2記載のミクロンオーダーの錫微粉末に加え
てまたは該粉末の代わりに0.02〜0.2μの酸化錫
超微粉および/または空気中で450℃以上に加熱して
酸化錫を生成する有機錫化合物を生成するSnO_2に
換算して、基油100重量部に対し0.01〜2重量部
含有する請求項1記載のグリース組成物。 4、有機錫化合物が一般式(II): RnSnX_4−n(II) 〔式中、Rは炭素原子数1〜12のアルキル基またはフ
ェニル基を示し、XはS(CH_2)_mCOOR′(
式中、R′は炭素原子数1〜22のアルキル基またはフ
ェニル基を示し、mは1〜8の数を示す)を示し、nは
1または2の数を示す〕 で表わされる化合物である請求項3記載のグリース組成
物。 5、金属不活性剤および第2級芳香族アミン系酸化防止
剤を含有する請求項1または2記載のグリース組成物。[Claims] 1. General formula (I): ▲There are mathematical formulas, chemical formulas, tables, etc.▼(I) (In the formula, R has 1 to 1 carbon atoms, which may have a branched chain.
18 alkyl group, n is an integer from 2 to 40) 100 parts by weight of a base oil containing 80% by weight or more of polyoxypropylene glycol monoalkyl ether, neopentyl polyol and/or neopentyl polyol ester , 5 to 40 parts by weight of a clay mineral treated with a lithium salt of a higher fatty acid and/or a quaternary ammonium salt having an affinity for organic matter, and 0.0 parts by weight of a phosphonic acid surfactant.
Grease composition containing 0.05 to 3 parts by weight. 2. The grease composition according to claim 1, containing 2 to 15 parts by weight of fine tin powder. 3. In addition to or in place of the micron-order fine tin powder according to claim 2, ultrafine tin oxide powder of 0.02 to 0.2 μm and/or tin oxide heated to 450° C. or higher in air is used. The grease composition according to claim 1, wherein the grease composition contains 0.01 to 2 parts by weight of the organic tin compound to be produced, in terms of SnO_2, based on 100 parts by weight of the base oil. 4. The organotin compound has the general formula (II): RnSnX_4-n(II) [wherein R represents an alkyl group or phenyl group having 1 to 12 carbon atoms, and X represents S(CH_2)_mCOOR'(
In the formula, R' represents an alkyl group or phenyl group having 1 to 22 carbon atoms, m represents a number from 1 to 8), and n represents a number from 1 to 2. The grease composition according to claim 3. 5. The grease composition according to claim 1 or 2, containing a metal deactivator and a secondary aromatic amine antioxidant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1445390A JPH03217497A (en) | 1990-01-24 | 1990-01-24 | Grease composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1445390A JPH03217497A (en) | 1990-01-24 | 1990-01-24 | Grease composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03217497A true JPH03217497A (en) | 1991-09-25 |
Family
ID=11861461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1445390A Pending JPH03217497A (en) | 1990-01-24 | 1990-01-24 | Grease composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03217497A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09169989A (en) * | 1995-12-20 | 1997-06-30 | Nippon Seiko Kk | Grease composition |
JP2004002696A (en) * | 2003-02-24 | 2004-01-08 | Nsk Ltd | Grease composition |
CN108753416A (en) * | 2018-07-25 | 2018-11-06 | 泾县汇鼎锋建筑装饰工程有限公司 | A kind of cylinder oil and preparation method thereof |
-
1990
- 1990-01-24 JP JP1445390A patent/JPH03217497A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09169989A (en) * | 1995-12-20 | 1997-06-30 | Nippon Seiko Kk | Grease composition |
JP2004002696A (en) * | 2003-02-24 | 2004-01-08 | Nsk Ltd | Grease composition |
CN108753416A (en) * | 2018-07-25 | 2018-11-06 | 泾县汇鼎锋建筑装饰工程有限公司 | A kind of cylinder oil and preparation method thereof |
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