EP0885949B1 - Utilisation d'une composition de graisse pour arbre articulé de transmission ne nécessitant pas d'entretien - Google Patents

Utilisation d'une composition de graisse pour arbre articulé de transmission ne nécessitant pas d'entretien Download PDF

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EP0885949B1
EP0885949B1 EP98109053A EP98109053A EP0885949B1 EP 0885949 B1 EP0885949 B1 EP 0885949B1 EP 98109053 A EP98109053 A EP 98109053A EP 98109053 A EP98109053 A EP 98109053A EP 0885949 B1 EP0885949 B1 EP 0885949B1
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percent
weight
lubricant
mixture
molybdenum
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EP98109053A
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German (de)
English (en)
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EP0885949A1 (fr
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Wilfried Dr. Rer. Nat. Dipl.-Chem. Dresel
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Fuchs Europe Schmierstoffe GmbH and Co KG
Spicer Gelenkwellenbau GmbH
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Gwb Gelenkwellenbau & Co KG GmbH
Spicer Gelenkwellenbau GmbH
Fuchs Dea Schmierstoffe GmbH and Co KG
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Priority claimed from DE19817055A external-priority patent/DE19817055A1/de
Application filed by Gwb Gelenkwellenbau & Co KG GmbH, Spicer Gelenkwellenbau GmbH, Fuchs Dea Schmierstoffe GmbH and Co KG filed Critical Gwb Gelenkwellenbau & Co KG GmbH
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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    • C10M2229/0515—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing halogen used as base material
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2229/053—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing sulfur
    • C10M2229/0535—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing sulfur used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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    • C10M2229/054—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus
    • C10M2229/0545—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus used as base material
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/10—Groups 5 or 15
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/12—Groups 6 or 16

Definitions

  • the invention relates to the use of a lubricant for maintenance-free Cardan shafts.
  • German patent application 195 30 504 is already a grease known that even at high temperatures can be used in constant velocity joints with can be produced with little effort and as a permanent solid lubricant filling to an increased lifespan of constant velocity joints leads. It contains mineral and / or as a basis synthetic oils, urea compounds as thickeners and Molybdenum sulfide as a dispersed solid lubricant as well additionally graphite, polytetrafluoroethylene and at least one organic molybdenum compound.
  • organic phosphates in the lubricating oils described there Contain phosphines, phosphonates or phosphites that are suitable for the Improve the properties of the lubricant as a whole be viewed critically.
  • Such lubricants are characterized by a content of inorganic molybdenum disulfide and are suitable for homokinetic constant velocity joints, but do not give good when used in universal joint shafts Services.
  • this object is achieved through the use of a lubricant solved according to claim 1.
  • a suitable basis for the lubricant Mineral oils and / or synthetic hydrocarbon oils is a naphthenic solvent raffinate, which by a combination of naphthenic base mineral oil with one synthetic hydrocarbon oil in a ratio of 1: 3 until 1: 5 is obtained.
  • a paraffinic solvent refinate suitable which is a mixture of a paraffin base mineral oil with a synthetic hydrocarbon oil in a ratio of 1: 3 to 1: 5 and a viscosity of about 100 to 150 centistokes at 40 ° C.
  • the lubricant contains a complex as a thickener Lithium soap made from a mixture of a saturated or unsaturated, aliphatic mono- or dicarboxylic acid with 10 to 24, preferably 16 to 18 carbon atoms and other acids is formed.
  • a complex as a thickener Lithium soap made from a mixture of a saturated or unsaturated, aliphatic mono- or dicarboxylic acid with 10 to 24, preferably 16 to 18 carbon atoms and other acids is formed.
  • a complex as a thickener Lithium soap made from a mixture of a saturated or unsaturated, aliphatic mono- or dicarboxylic acid with 10 to 24, preferably 16 to 18 carbon atoms and other acids is formed.
  • the lithium salt of 12-hydroxstearic acid with the lithium salts of azelaic acid, the Sebacic acid or boric acid have thickeners for Lubricants have already found multiple uses because of them at higher temperatures than the simple lithium soaps can be used.
  • the lithium salts of aliphatic, Mono- or dicarboxylic acids have proven themselves particularly well as thickeners of lubricants.
  • the lithium salt is added to the base fat in an amount of 5 to 20 percent by weight based on the amount of base fat admitted.
  • control oils are olefin copolymers, Polybutenes, polyol esters, polyalfaolefins, perfluoropolyethers, Polysiloxanes and hydrogenated diene-styrene copolymers are suitable. They are generally added to the base fat in an amount of 2 up to 40 percent by weight based on the total amount of Lubricant added.
  • antioxidants sterically hindered phenols and Amines, for example phenyl- ⁇ -naphthylamine.
  • the right properties of the lubricant are also achieved by being next to others Additives dithiocarbamates or dithiophosphates of molybdenum, in combination with a thiadiazole derivative contains. Molybdenum dithiophosphate and molybdenum dithiocarbamate have proven themselves particularly well. Such molybdenum compounds together with a 1-thia-3,4-diazole or his sulfur-bridged dimers are used, then the Lubrication properties both at high temperatures as well so strong with mechanical loads in the long term improved that the lubrication of the pin sets when Manufacturer for the entire service life of the commercial vehicle is sufficient.
  • an anti-corrosion agent such as N-acyl sarcosine and / or one High pressure additive such as methylene bis (dibutyl dithio carbamate) Lubricant clogged.
  • an anti-corrosion agent such as N-acyl sarcosine and / or one High pressure additive such as methylene bis (dibutyl dithio carbamate) Lubricant clogged.
  • the amount of added Additives in a quantity range from 2 to 10 Percent by weight, based on the total lubricant, lie.
  • the lubricant is manufactured so that the by reacting lithium hydroxide with a aliphatic mono- or dicarboxylic acid, produced lithium salts to be dissolved or suspended in the base and part of the Additives to the control oil is added. These two mixes are then at an elevated temperature between 80 to 240 ° C. a stirring or mixing device mixed together. High pressure homogenizers have been used to manufacture the Lubricant with a uniform and particularly homogeneous distribution of its ingredients proven. The temperature sensitive additives are just before added to the homogenization.
  • a lubricant according to the invention with the following general composition was produced: 1st base 1.0 Percent by weight Aryl carboxylic acid 1.0 Percent by weight Alkyl sulfonic acid 3.0 Percent by weight aliphatic dicarboxylic acids with 6 to 10 carbon atoms 8.0 Percent by weight aliphatic monocarboxylic acids with 12 to 22 carbon atoms or their glycerides 3.0 Percent by weight Lithium hydroxide 43.0 Percent by weight naphthenic solvent refinate
  • This mixture is contained in the lubricant according to the invention in an amount of 53 percent by weight.
  • Synthetic control components 6.0 Percent by weight Olefin copolymer 18.0 Percent by weight Polyol ester 76.0 Percent by weight Poly- ⁇ -olefins
  • This mixture is contained in the lubricant according to the invention in an amount of 40 percent by weight.
  • Additives 0.5 Percent by weight aminic antioxidant 0.5 Percent by weight Carboxylic acid alkanolamide 2.0 Percent by weight Molybdenum compound 1.0 Percent by weight vegetable oil 1.0 Percent by weight Sarcosine derivative 2.0 Percent by weight Thiadiazole derivative
  • This mixture is in the lubricant in an amount of 7 Weight percent included.
  • a further lubricant according to the invention with the following general composition was produced: 1st base 2.0 Percent by weight Boric acid 14.0 Percent by weight Monocarboxylic acids with 12 to 22 carbon atoms or their glycerides 1.0 Percent by weight Polycarboxylic acid 3.0 Percent by weight Lithium hydroxide 66.0 Percent by weight paraffinic solvent refinate
  • This mixture is contained in the lubricant according to the invention in an amount of 86 percent by weight.
  • Synthetic control components 12.0 Percent by weight Olefin copolymers 36.0 Percent by weight Polyol ester 52.0 Percent by weight Poly- ⁇ -olefin
  • This mixture is contained in the lubricant according to the invention in an amount of 7 percent by weight.
  • Additives 0.5 Percent by weight aminic antioxidant 0.5 Percent by weight Carboxylic acid alkanolamide 2.0 Percent by weight Molybdenum compound 1.0 Percent by weight vegetable oil 1.0 Percent by weight Sarcosine derivative 2.0 Percent by weight Thiadiazole derivative
  • This mixture is in the lubricant according to the invention in an amount of 7 percent by weight.
  • Example 1 8 universal joints with the lubricant according to the invention from Example 1 and 6 universal joints with a standard lubricant of the following composition were compared: 1st base 2.0 Percent by weight Boric acid 14.0 Percent by weight Monocarboxylic acids with 12 to 22 carbon atoms or their glycerides 1.0 Percent by weight Polycarboxylic acid 3.0 Percent by weight Lithium hydroxide 66.0 Percent by weight paraffinic solvent refinate
  • the standard lubricant contains 5 percent by weight of this component.
  • Additives 0.5 Percent by weight aminic antioxidant 0.7 Percent by weight Carboxylic acid alkanolamide 1.0 Percent by weight Imidazoline derivative 1.0 Percent by weight vegetable oil 0.5 Percent by weight phenolic antioxidant 1.0 Percent by weight Thiadiazole derivative 2.5 Percent by weight Zinc dialkyl dithiophosphate 1.5 Percent by weight Zinc naphthenate
  • the mixture of these additives is in the standard lubricant contained in an amount of 9 percent by weight.
  • the B10 value for the tested joints describes the determined service life at which 90% of the joints are not yet have failed.
  • the B63.2 value describes the same determined lifespan at which 36.8% of the universal joints still have not failed.
  • Fig. 1 shows the graphical representation of this experiment. It it can be seen that the runtime when using the Lubricant is significantly higher than that of the Use of the standard lubricant, the failure-free Time must be added according to the table. This is in the Diagram listed again as t0 in the box at the bottom right.

Claims (3)

  1. Utilisation d'un lubrifiant pour arbres à cardan sans entretien, caractérisée en ce qu'il contient
    a) un produit raffiné au solvant, naphténique ou paraffinique, présent individuellement ou en mélange, constituant la graisse de base,
    b) de 5 à 20 pour-cent en poids, par rapport à la quantité de graisse de base, d'un savon complexe au lithium constitué à partir d'un mélange d'un acide monocarboxylique ou bicarboxylique aliphatique saturé ou insaturé contenant de 10 à 24 atomes carbone, et d'autres acides,
    c) de 2 à 40 pour-cent en poids, par rapport à la quantité totale de lubrifiant, de plusieurs huiles de fluxage du groupe des copolymères d'oléfines, du polybutène, d'un ester polyolique, d'un poly-alpha-oléfine, d'un polyéther perfluoré, d'un polysiloxane ou d'un copolymère hydrogéné de diène-styrène,
    d) un dithiocarbamate ou un dithiophosphate de molybdène, en association avec un dérivé d'un thiadiazole,
       ainsi que d'autres additifs antioxydants, anticorrosion, et haute pression, habituellement employés dans des lubrifiants.
  2. Utilisation d'un lubrifiant selon la revendication 1, caractérisée en ce qu'il contient, comme additifs supplémentaires, des oxydants aminés ou phénoliques.
  3. Utilisation d'un lubrifiant selon les revendications 1 et 2, caractérisée en ce qu'il contient, comme autre additif supplémentaire, de la N-sarcosine d'acyle, constituant un agent anticorrosion.
EP98109053A 1997-06-20 1998-05-19 Utilisation d'une composition de graisse pour arbre articulé de transmission ne nécessitant pas d'entretien Expired - Lifetime EP0885949B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19726127 1997-06-20
DE19726127 1997-06-20
DE19817055 1998-04-17
DE19817055A DE19817055A1 (de) 1997-06-20 1998-04-17 Schmierstoff für wartungsfreie Gelenkwellen

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Publication Number Publication Date
EP0885949A1 EP0885949A1 (fr) 1998-12-23
EP0885949B1 true EP0885949B1 (fr) 2000-08-09

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US (1) US6541427B1 (fr)
EP (1) EP0885949B1 (fr)
JP (1) JPH1121579A (fr)
ES (1) ES2152724T3 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2346892B (en) * 1999-02-16 2002-10-09 Gkn Technology Ltd Grease for constant velocity joints
GB0002524D0 (en) * 2000-02-04 2000-03-29 Castrol Ltd A process for producing organometallic dithio-compounds and the orgenometallic dithio-compounds produced therefrom
JP4238509B2 (ja) * 2002-02-27 2009-03-18 Ｎｏｋクリューバー株式会社 グリース組成物
US7763574B2 (en) * 2003-10-10 2010-07-27 R.T. Vanderbilt Company, Inc. Lubricating compositions containing synthetic ester base oil, molybdenum compounds and thiadiazole-based compounds
JP2007507600A (ja) * 2003-10-10 2007-03-29 アール．ティー．ヴァンダービルト カンパニー，インコーポレーテッド 合成エステル基油、モリブデン化合物およびチアジアゾール系化合物を含有する潤滑組成物
MX2010006510A (es) * 2007-12-14 2010-10-04 Vanderbilt Co R T Composicion aditiva para grasas de presion extrema (ep) con excelentes propiedades de corrosion y antidesgaste.
KR101080763B1 (ko) * 2009-09-21 2011-11-07 현대자동차주식회사 장수명 가솔린 엔진오일 조성물
KR101543039B1 (ko) * 2009-10-26 2015-08-10 현대자동차주식회사 임피던스 매칭법을 이용한 인버터 커패시터 모듈의 회로 구성방법
CN102703168A (zh) * 2012-06-20 2012-10-03 津滨东宝(天津)科技发展有限公司 一种极压抗磨添加剂组合物及其在润滑脂中的应用
WO2019133238A1 (fr) 2017-12-29 2019-07-04 Exxonmobil Research And Engineering Company Compositions de graisse pour opération à basses températures
CN110804480A (zh) * 2018-08-06 2020-02-18 南京三佳万向节制造有限公司 一种万向节用润滑剂

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US6541427B1 (en) 2003-04-01
EP0885949A1 (fr) 1998-12-23
ES2152724T3 (es) 2001-02-01
JPH1121579A (ja) 1999-01-26

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