WO2010013708A1 - Composition de graisse et palier - Google Patents

Composition de graisse et palier Download PDF

Info

Publication number
WO2010013708A1
WO2010013708A1 PCT/JP2009/063420 JP2009063420W WO2010013708A1 WO 2010013708 A1 WO2010013708 A1 WO 2010013708A1 JP 2009063420 W JP2009063420 W JP 2009063420W WO 2010013708 A1 WO2010013708 A1 WO 2010013708A1
Authority
WO
WIPO (PCT)
Prior art keywords
grease composition
bearing
rust
rust inhibitor
sulfonate
Prior art date
Application number
PCT/JP2009/063420
Other languages
English (en)
Japanese (ja)
Inventor
隆史 我妻
実 並木
Original Assignee
協同油脂株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 協同油脂株式会社 filed Critical 協同油脂株式会社
Publication of WO2010013708A1 publication Critical patent/WO2010013708A1/fr

Links

Classifications

    • 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
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/06—Mixtures of thickeners and additives
    • 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
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/08—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic sulfur-, selenium- or tellurium-containing compound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F16C33/6633—Grease properties or compositions, e.g. rheological properties
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • C10M2219/0445—Sulfonic acids, Derivatives thereof, e.g. neutral salts used as thickening agents
    • 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
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

Definitions

  • the present invention relates to a grease composition and a bearing. More specifically, the present invention relates to a grease composition suitable for use in a bearing used in an environment exposed to water, such as a steel roll neck bearing, and a bearing in which the grease composition is enclosed.
  • cooling water may be mixed in the bearing.
  • rolling oil emulsion
  • rust is easily generated. Due to this rust, poor lubrication may occur or the function as a bearing may be lost in a short period of time. Further, the bearing may be left off-line during roll polishing or replacement, and rusting may occur.
  • Patent Document 1 describes a grease containing (a) a reaction product of a calcium-containing overbased organic acid and an acid-generating compound and (b) an oil having a lubricating viscosity as a grease excellent in water resistance.
  • Patent Document 2 includes a base oil selected from mineral oils and synthetic oils, and a calcium sulfonate complex as a thickener. Water-resistant grease compositions containing at least one of the above are described. However, these grease compositions do not always satisfy rust prevention properties under severe conditions where cooling water and emulsion are mixed in the bearing.
  • the present invention provides the following grease and bearing. 1.
  • a grease composition containing a base oil, a thickener and a rust inhibitor
  • the thickener comprises a calcium sulfonate complex
  • the rust inhibitor includes at least one selected from the group consisting of sulfonate rust inhibitors and fatty acid amine salt rust inhibitors,
  • the grease composition wherein the sulfonate rust inhibitor is a salt of zinc, calcium, sodium, lithium, ammonium, or amine.
  • the fatty acid amine salt rust inhibitor is an amine salt of a fatty acid having 4 to 22 carbon atoms. 3. 3.
  • the grease composition of the present invention uses a calcium sulfonate complex as a thickener and contains at least one of a specific sulfonate rust inhibitor and a fatty acid amine salt rust inhibitor as an additive. Rusting due to water mixing is remarkably improved compared to products.
  • the base oil used in the grease composition of the present invention is not particularly limited, and examples thereof include mineral oils and synthetic oils used in ordinary grease compositions. Synthetic oils include poly alpha olefins, diesters, polyol esters, ethers, and the like, but the use of mineral oils is preferred from an economic viewpoint.
  • Calcium sulfonate complex used as a thickener in the grease composition of the present invention is not particularly limited, but preferably is disclosed in Patent Document 1.
  • the thickener used in the grease composition of the present invention is a calcium sulfonate complex, and is preferably at least 5% by mass, more preferably 10% by mass or more, and most preferably 30-50% by mass in the grease.
  • NLGI grade No. is practically used from the viewpoint of leakage. 0 to No. It is preferable to adjust to about 3.
  • the sulfonic acid component is alkylbenzenesulfonic acid, alkylnaphthalenesulfonic acid, etc.
  • the salt component is zinc, calcium, sodium, lithium, ammonium, amine, etc.
  • a zinc salt, a calcium salt, and a combination of both are preferred.
  • the sulfonate may be overbased, and in this case, the base number is preferably about 0 to 500 mgKOH / g.
  • Examples of the fatty acid amine salt rust inhibitor used in the grease composition of the present invention include fatty acids having 4 to 22 carbon atoms, preferably 8 to 20 carbon atoms, and aliphatic amines having 9 to 22 carbon atoms, preferably 12 to 18 carbon atoms.
  • fatty acids having 4 to 22 carbon atoms preferably 8 to 20 carbon atoms
  • aliphatic amines having 9 to 22 carbon atoms preferably 12 to 18 carbon atoms.
  • Fatty acids and aliphatic amines may be saturated or unsaturated, and may be linear or branched.
  • the amine may be any of primary, secondary and tertiary amines.
  • the amount of the sulfonate rust inhibitor and fatty acid amine salt rust inhibitor used in the grease composition of the present invention is preferably 0.5 to 10% by mass, more preferably 2 to 8%, based on the grease composition. % By mass. If it is less than 0.5% by mass, it is difficult to obtain the effect, and if it exceeds 10% by mass, the effect is saturated and it is not economical.
  • the grease composition of the present invention includes other additives used in ordinary grease compositions, such as oiliness improvers, antioxidants, metal deactivators, extreme pressure agents, friction modifiers, and surfactants. Etc. may be included.
  • Example 1-10 and Comparative Example 1-7 The base greases shown in Example 1-10 and Comparative Example 1-7 were produced as follows. First, 85.0% by weight of calcium sulfonate having a base number of 400 mg KOH / g (manufactured by LUBRIZOL: LUBRIZOL 86GR), 9.9% by weight of paraffinic mineral oil having a base oil dynamic viscosity of 410 to 470 mm 2 / s and 5.1% by weight of distilled water in a container.
  • the corrosive water used here contains the following ions, and is the average ion concentration of industrial water in steelworks.
  • Example 1-10 using the rust inhibitor of the present invention the rust inhibitory effect is remarkable, whereas in Comparative Example 1-7 using a rust inhibitor other than the rust inhibitor of the present invention, the rust inhibitory effect is obtained. Is clearly inferior.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lubricants (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne une composition de graisse qui n’entraîne pas la formation de rouille même lorsqu’elle est mélangée à de l'eau, des émulsions et des composés similaires dans un palier, et un palier qui a été rempli de ladite composition de graisse. La composition de graisse contient un complexe huile de base/sulfonate de calcium en tant qu’épaississant et au moins un type d'inhibiteur de rouille choisi dans le groupe constitué d’inhibiteurs de rouille à base de sulfonate et d’inhibiteurs de rouille à base de sel d'amine d'acide gras spécifiés, et le palier est rempli de ladite composition de graisse.
PCT/JP2009/063420 2008-07-28 2009-07-28 Composition de graisse et palier WO2010013708A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008193858A JP2010031123A (ja) 2008-07-28 2008-07-28 グリース組成物及び軸受
JP2008-193858 2008-07-28

Publications (1)

Publication Number Publication Date
WO2010013708A1 true WO2010013708A1 (fr) 2010-02-04

Family

ID=41610408

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/063420 WO2010013708A1 (fr) 2008-07-28 2009-07-28 Composition de graisse et palier

Country Status (2)

Country Link
JP (1) JP2010031123A (fr)
WO (1) WO2010013708A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010037746A1 (fr) * 2008-09-30 2010-04-08 Shell Internationale Research Maatschappij B.V. Formule de graisse
WO2021251250A1 (fr) * 2020-06-09 2021-12-16 Ｎｏｋクリューバー株式会社 Composition de lubrifiant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150052358A (ko) 2010-06-28 2015-05-13 교도유시 가부시끼가이샤 그리스 조성물 및 기계 부품
US10266787B2 (en) 2012-11-16 2019-04-23 Idemitsu Kosan Co., Ltd. Grease composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004269789A (ja) * 2003-03-11 2004-09-30 Nsk Ltd グリース組成物及び転動装置
JP2007084620A (ja) * 2005-09-20 2007-04-05 Nsk Ltd 耐水性グリース組成物及び鉄鋼圧延機用転がり軸受

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4641336B2 (ja) * 2000-08-10 2011-03-02 協同油脂株式会社 グリース組成物
JP5096703B2 (ja) * 2006-07-04 2012-12-12 日本精工株式会社 耐水性グリース組成物及び車両用ハブユニット軸受
JP5224571B2 (ja) * 2006-10-26 2013-07-03 協同油脂株式会社 グリース組成物及び軸受

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004269789A (ja) * 2003-03-11 2004-09-30 Nsk Ltd グリース組成物及び転動装置
JP2007084620A (ja) * 2005-09-20 2007-04-05 Nsk Ltd 耐水性グリース組成物及び鉄鋼圧延機用転がり軸受

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TOSHIO SAKURAI, SEKIYU SEIHIN TENKAZAI, 10 August 1974 (1974-08-10), pages 223 - 229, 237 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010037746A1 (fr) * 2008-09-30 2010-04-08 Shell Internationale Research Maatschappij B.V. Formule de graisse
US9096813B2 (en) 2008-09-30 2015-08-04 Shell Oil Company Grease composition
WO2021251250A1 (fr) * 2020-06-09 2021-12-16 Ｎｏｋクリューバー株式会社 Composition de lubrifiant
JP7407933B2 (ja) 2020-06-09 2024-01-04 Ｎｏｋクリューバー株式会社 潤滑剤組成物

Also Published As

Publication number Publication date
JP2010031123A (ja) 2010-02-12

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