CN105814178A - Grease composition - Google Patents
Grease composition Download PDFInfo
- Publication number
- CN105814178A CN105814178A CN201480065541.0A CN201480065541A CN105814178A CN 105814178 A CN105814178 A CN 105814178A CN 201480065541 A CN201480065541 A CN 201480065541A CN 105814178 A CN105814178 A CN 105814178A
- Authority
- CN
- China
- Prior art keywords
- base oil
- lube base
- lubricant composition
- mass
- oil
- 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
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
- C10M169/02—Mixtures of base-materials and thickeners
-
- 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
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms 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
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
-
- 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
- C10M2207/106—Carboxylix acids; Neutral salts thereof used as thickening agents
-
- 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
- C10M2207/1256—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 used as thickening agent
-
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/10—Amides of carbonic or haloformic acids
- C10M2215/102—Ureas; Semicarbazides; Allophanates
- C10M2215/1026—Ureas; Semicarbazides; Allophanates used as thickening 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
-
- 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
- C10N2010/02—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
- C10N2010/12—Groups 6 or 16
-
- 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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
-
- 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
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The present invention provides a grease composition containing lubricant base oil and thickener, the lubricant base oil containing first lubricant base oil having an n-d-M ring analysis value %CA by ASTM D3238 of 2-8 and %CP of 50-75 and a second lubricant base oil having an n-d-M ring analysis value %CA by ASTM D3238 of 1 or lower, %CP of 70 or higher, and a urea adduct value of 4 mass% or lower, and having a content of the first lubricant base oil of 5-90 mass% and a content of the second lubricant base oil of 10-95 mass% on the basis of the total amount of lubricant base oil.
Description
Technical field
The present invention relates to lubricant composition.
Background technology
Grease is to disperse fibrous thickening agent to make the lubricant of semi-solid in base oil, with lubrication oil phase
Ratio, is easily attached to lubrication portion, is difficult to flow out.Therefore, lubricating system can be made simple structure, be mainly used in rolling bearing,
The lubrication of the mechanical organs such as sliding bearing, ball-screw, linear motion guiding piece, gear, is widely used in industrial machine, conveying
By mechanical system etc..
In recent years, while seeking energy-saving, reduce the problem that the energy loss of various mechanical system also becomes eager.
In the situations such as automobile lubricant effectively: in order to ensure save fuel, make as far as possible lube base oil lowering viscousity,
Reduce the energy loss that the viscous drag of lubricating oil causes；And in order to reduce the frictional resistance of sliding part, make friction reduce agent
Etc. various additive optimum formulas (patent documentation 1).
On the other hand, for as the viscous drag during grease of non-newtonian liquid, not only need to consider that base oil glues
Degree, in addition it is also necessary to consider the apparent viscosity including the structural viscosity that the fibrous thickening agent being dispersed in base oil causes.?
Know that apparent viscosity can arrange by so-called denseness in brief, during denseness high (soft), the low (non-patent literature of viscous drag
1)。
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2012-102281 publication
Non-patent literature
Non-patent literature 1: grease base plinth and application (sliding グ リ ス base と uses), page 49～89, day
Grease research association of this tribology association compiles, foster virtuous hall, 2007
Summary of the invention
The problem that invention is to be solved
But, while reducing viscous drag, suitable denseness when being applicable to mechanical system may not be readily insured that.
That is, if excessively soft as grease, then splash or from mechanical organ stream because of the centrifugal force of accompanying rotation motion
Go out.On the other hand, if really up to the mark, then become resistance to sliding, hinder desired action.That is, in the case of conventional grease,
Optimum formula can only be put into practice while seeking the balance of base oil composition, amounts of thickener.
The problem that the invention solves the problems that is, it is provided that resistance to sliding is low, can reduce the power consumption of mechanical organ significantly, outstanding
It is the lubricant composition of power consumption during bearing rotation.
For solving the scheme of problem
The present inventor etc. conduct in-depth research to solve above-mentioned problem, it was found that pass through the property that hybrid regulatory is quantitative
The different specific base oil of shape is as grease base plinth oil, compared with the grease being used alone respective base oil, it is possible to
Reduce power consumption when bearing rotates significantly.
It should be noted that in order to reduce make bearing rotate time required energy seek energy-saving, it is believed that important
It is to try to reduce the resistance to rolling between bearing roller (pearl, roller) and rail wheel (interior wheel and foreign steamer) and resistance to sliding, logical
Chang Eryan, makes the base oil lowering viscousity of lubricating oils (lubricating oil, grease), has friction minimizing effect as additive compounding
The oiliness improver etc. of fruit is useful.But, in the case of grease, during manufacturing thickening agent, need base oil
Being exposed under hot conditions, in terms of the evaporation, safety of base oil, there is boundary in lowering viscousity.And then, it is used for reducing friction
Additive exist along with use its effect of time reduce problem.On the other hand, the present inventor etc. are conceived to bearing sliding part
Oil film Forming ability, the viscosity B coefficent that causes of the temperature of lube base oil, in order between bearing roller and rail wheel
Form sufficient oil film and reduce and directly contact, because of them, the energy loss caused, find effectively: at the one-tenth of base oil
Containing the big molecule of stereochemical structure in Fen, specially comprise the aromatic composition (%C according to n-d-M ring analysisA)；With in order to
Avoiding raising the viscosity caused with temperature to reduce, balance contains the high paraffinic components of viscosity index (VI) well (according to n-d-M
The %C of ring analysisP)。
The present invention makes according to above-mentioned opinion, it is provided that the lubricant composition described in following [1]～[9].
[1] a kind of lubricant composition, it contains lube base oil and thickening agent, and aforementioned lube base oil contains:
1st lube base oil, according to the %C of the n-d-M ring analysis value of ASTM D3238ABe 2～8, %CPIt is 50～75；With the 2nd profit
Lubricant base oil, according to the %C of the n-d-M ring analysis value of ASTM D3238ABe less than 1, %CPBe more than 70, carbamide adduction value
Being below 4 mass %, on the basis of aforementioned lube base oil total amount, the content of aforementioned 1st lube base oil is 5～90 matter
Amount %, the content of aforementioned 2nd lube base oil is 10～95 mass %.
[2] according to the lubricant composition described in [1], its denseness is 220～300.
[3] according to the lubricant composition described in [1] or [2], it is possibly together with organic molybdenum.
[4] according to the lubricant composition described in [3], wherein, aforementioned organic molybdenum contains selected from dithiocarbamates
At least one in formic acid molybdenum and molybdenum dithiophosphate.
[5] according to the lubricant composition according to any one of [1]～[4], wherein, aforementioned 1st lube base oil tool
Have at 40 DEG C is 10～700mm2The kinematic viscosity of/s and the viscosity index (VI) of 90～120.
[6] according to the lubricant composition according to any one of [1]～[5], wherein, aforementioned 2nd lube base oil tool
Have at 40 DEG C is 10～5000mm2The kinematic viscosity of/s and the viscosity index (VI) of 110～150.
[7] according to the lubricant composition according to any one of [1]～[6], wherein, aforementioned 2nd lube base oil contains
There is at least one in mineral oil and synthesis hydrocarbon.
[8] according to the lubricant composition according to any one of [1]～[7], wherein, aforementioned thickening agent contains selected from metal
At least one in soap based compound and carbamide compound.
[9] a kind of lubricant composition, it contains lube base oil, thickening agent and organic molybdenum, aforementioned lubrication
Oil base oil contains: the 1st lube base oil, according to the %C of the n-d-M ring analysis value of ASTM D3238ABe 2～8, %CPFor
50～75；With the 2nd lube base oil, according to the %C of the n-d-M ring analysis value of ASTM D3238ABe less than 1, %CPBe 70 with
On, on the basis of aforementioned lube base oil total amount, the content of aforementioned 1st lube base oil is 5～90 mass %, aforementioned
The content of 2 lube base oils is 10～95 mass %, and the denseness of aforementioned lubricant composition is 220～300.
The effect of invention
The lubricant composition of the present invention plays bearing and rotates the remarkable result that the electric energy consumed is few.
Detailed description of the invention
Below, preferred embodiment explaining the present invention.
The lubricant composition of embodiments of the present invention contains lube base oil and thickening agent.Lube base oil contains
There are the 1st lube base oil and the 2nd lube base oil, the n-d-M according to ASTM D3238 of described 1st lube base oil
The %C of ring analysis valueABe 2～8, %CPIt is 50～75, the n-d-M ring according to ASTM D3238 of described 2nd lube base oil
The %C of assay valueABe less than 1, %CPBe more than 70, carbamide adduction value be below 4 mass %.1st lube base oil and the 2nd
The mixing ratio of lube base oil is on the basis of lube base oil total amount, and the content of the 1st lube base oil is 5～90 matter
Amount %, the content of the 2nd lube base oil is 10～95 mass %.
In present embodiment, based on the following opinion of the present inventor, the 1st lube base oil can be used: be conceived to bearing sliding
The viscosity B coefficent that the dynamic oil film Forming ability in portion, the temperature of lube base oil cause, in order at bearing roller and rail wheel
Between form sufficient oil film and reduce them directly contact the energy loss caused, utilize Adjoint Orbit wheel and bearing element
" wedge effect " of the rolling of body, constitutes molecule containing the base oil that stereochemical structure is big, specially comprises in the composition of base oil
Aromatic composition (the %C according to n-d-M ring analysisA) it is effective.
About the n-d-M ring analysis value according to ASTM D3238, the %C of the 1st lube base oilAIt is 2～8, preferably 2
～6, more preferably 4～6.%CADuring less than 2, the minimizing effect of energy loss becomes insufficient, it addition, during more than 8, relatively
The content of paraffinic components easily diminishes, and viscosity during high temperature reduces and becomes big, becomes insufficient in terms of oil film Forming ability.
The %C of the 1st lube base oilPIt is 50～75, preferably 60～70.%CPViscosity drop during less than 50, during high temperature
Low big, oil film Forming ability is poor, it addition, during more than 75, the content relatively comprising aromatic composition easily diminishes, energy damage
The minimizing effect lost becomes insufficient.
The viscosity index (VI) of the 1st lube base oil is preferably 90～120, more preferably 95～115, more preferably
100～110.When viscosity index (VI) is more than 90, it is possible to suppression temperature raises the viscosity caused and reduces, and improves oil film further and is formed
Ability.
Kinematic viscosity at 40 DEG C of 1st lube base oil is not particularly limited, from preparing safely, there is excellence
Lubricity grease from the point of view of, preferably 10～700mm2/ s, more preferably 20～500mm2/ s, further preferably
It is 25～70mm2/s。
Kinematic viscosity at the viscosity index (VI) of the present invention and 40 DEG C represents the viscosity index (VI) recorded according to JIS K2283 respectively
With the kinematic viscosity at 40 DEG C.
As the 1st lube base oil, can enumerate and crude oil will be carried out air-distillation or carry out decompression steaming further
The lube cut that the distillate oil evaporated and obtain refines with various process for refining, and according to the n-d-M ring of ASTM D3238
The %C of assay valueABe 2～8, %CPIt is 50～75.Process for refining is hydrofinishing, solvent extraction, solvent dewaxing etc., it is possible to will
They obtain the 1st lube base oil of present embodiment so that suitable sequential combination carries out processing.By different crude oil or
The mixture of the refined oil of more than two kinds that character that distillate oil is obtained by the combination of different process, order is different also has
?.If the character of gained the 1st lube base oil is regulated disclosure satisfy that aforementioned physical property, then obtained by any means
1st lube base oil also can be preferably used.
In present embodiment, based on the following opinion of the present inventor, the 2nd lube base oil can be used: becoming elastomeric flow
The bearing roller of body dynamic lubrication and rail wheel make chain low containing traction coeficient in base oil closest to position
Hydrocarbon composition, paraffinic components are effective.
On the other hand, even if the present inventor etc. are many in view of the paraffinic components in lube base oil, if this alkane
Composition does not have suitable side chain, then the viscosity under low-temperature region increases and becomes big, and during the bearing under low temperature starts, torque increases, real
Use and become problem, and research is repeated further, it was found that play disorder of internal organs as the bearing under low temperature to become torque rising
The index of content of paraffinic components of reason, carbamide adduction value is effective.And, the present inventor etc. finds, by inciting somebody to action
Carbamide adduction value, %CPAnd %CAThe 2nd lube base oil meeting specified conditions respectively is mixed in the 1st lube base oil,
The surge of starting torque under low temperature can be suppressed, and the low torque of bearing can be sought from room temperature to high-temperature area.
About the n-d-M ring analysis value according to ASTM D3238, the %C of the 2nd lube base oilAIt is less than 1, is preferably
Less than 0.8.%CADuring more than 1, it is impossible to become the bearing roller of elastohydrodynamic lubrication and rail wheel closest to portion
The suitable paraffinic components that traction coeficient is low it is sufficiently fed at Wei.
The %C of the 2nd lube base oilPIt is more than 70, preferably more than 75, more preferably more than 80.%CPLess than 70
Time, become the minimizing effect of the bearing roller of elastohydrodynamic lubrication and the traction coeficient closest to position of rail wheel
Become insufficient.
The viewpoint that torque when viscosity from suppression low-temperature region increases and suppresses the bearing under low temperature to start rises goes out
Sending out, the carbamide adduction value of the 2nd lube base oil is below 4 mass %, below preferably 3.5 mass %, and more preferably 3 matter
Amount below %.The carbamide adduction value of the 2nd lube base oil is that 0 mass % is also possible, but from fully suppression low temperature
Bearing start time torque rise and the higher lube base oil of viscosity index (VI) can be obtained and relax Dewaxing conditions from
And angle also excellent in economy is set out, more than preferably 0.1 mass %, more than more preferably 0.5 mass %.
The carbamide adduction value of the present invention records according to following methods.By sample oil (lube base oil) of weighing
100g puts in round-bottomed flask, adds urea 200g, toluene 360ml and methanol 40ml, is stirred at room temperature 6 hours.Thus, reaction
Liquid generates the bulk crystalline of the white as urea adduct.Reactant liquor is filtered with 1 micron filter, thus gathers
The white particulate crystal generated, cleans the crystal toluene 50ml obtained 6 times.The white crystal of recovery is put in flask,
Add pure water 300ml and toluene 300ml, stir 1 hour at 80 DEG C.With separatory funnel, aqueous phase separation is removed, by toluene phase
Clean 3 times with pure water 300ml.After middle addition desiccant (sodium sulfate) carries out processed to toluene mutually, toluene distillation is gone
Remove.It is defined as carbamide adduction value relative to the ratio (quality percentage) of sample oil by so operating the urea adduct obtained.
In the mensuration of carbamide adduction value, as urea adduct, it is possible to precision well and positively traps different alkane
In hydrocarbon, the bearing under low temperature plays disorder of internal organs becomes in the composition of reason and lube base oil that torque rises and remains normal paraffin hydrocarbons
Time this normal paraffin hydrocarbons, therefore the index containing ratio as normal paraffin hydrocarbons and above-mentioned specific isoparaffin is excellent.
By using the analysis of GC and NMR, it is normal paraffin hydrocarbons and from master that the present inventor etc. confirms the main component of urea adduct
The end of chain is to the urea adduct of the isoparaffin that carbon number is more than 6 of branched positional.
The viscosity index (VI) of the 2nd lube base oil is 110～150, preferably 115～140, more preferably 125～140.
When viscosity index (VI) is more than 110, it is possible to viscosity during suppression high temperature reduces, improve oil film Forming ability further.Viscosity index (VI)
When being less than 150, it is excellent in terms of the manufacturing cost when obtaining lube base oil.
The kinematic viscosity of 40 DEG C of the 2nd lube base oil is preferably 10～5000mm2/ s, more preferably 20～
3000mm2/ s, more preferably 25～70mm2/s.The kinematic viscosity of 40 DEG C is 10mm2During/more than s, it is possible to suppression flash-point
Reduce, it is possible to manufacture grease safely.The kinematic viscosity of 40 DEG C is 5000mm2During/below s, it is possible to suppression viscous drag
Increase, more excellent in terms of energy conservation characteristic.
In mineral oil that 2nd lube base oil is preferably selected from having above-mentioned character and synthetic hydrocarbon oil more than a kind.Also
The base oil being mixed with mineral oil and synthetic hydrocarbon oil can be used as the 2nd lube base oil.
As the mineral oil of the 2nd lube base oil, can enumerate and crude oil will be carried out air-distillation or enter further
The lube cut that the distillate oil that row decompression is distilled and obtained refines with various process for refining, and according to ASTM D3238's
The %C of n-d-M ring analysis valueABe less than 1, %CPBe more than 75, carbamide adduction value be below 4 mass %.Process for refining is hydrogenation
Decomposition, hydrofinishing, solvent extraction, solvent dewaxing, Hydrodewaxing etc., it is possible to they are processed with suitable sequential combination
And obtain the 2nd lube base oil component of the present invention.By different crude oil or distillate oil by the combination of different process, sequentially
And the mixture of the different refined oil of more than two kinds of the character that obtains also is useful.If by gained the 2nd lube base oil
Character regulates disclosure satisfy that aforementioned physical property, then the 2nd lube base oil obtained by any means also can be preferably
Use.
As the synthetic hydrocarbon oil of the 2nd lube base oil, such as, can enumerate poly-alpha-olefin, polybutene, of more than two kinds
The polyolefin such as the copolymer of various alkene, alkylbenzene, alkylnaphthalene etc., and the % of the n-d-M ring analysis value according to ASTM D3238
CABe less than 1, %CPBe more than 75, carbamide adduction value be below 4 mass %.Wherein, from obtaining easiness, becoming present aspect, viscosity
From the standpoint of the adaptability of characteristic, oxidation stability and the component of a system, preferably poly-alpha-olefin.As poly-alpha-olefin, from cost
From the standpoint of, the polymer of more preferably 1-laurylene, 1-decene etc..
In present embodiment, the 2nd lube base oil can be only to be made up of the one in mineral oil and synthetic hydrocarbon oil
Lube base oil, or can also be both mixture.That is, as the 1st lube base oil and the 2nd lube base oil
Preferred combination, the 1st lube base oil (mineral oil) and the 2nd lube base oil (mineral oil) can be exemplified, the 1st moistens
Lubricant base oil (mineral oil) and the 2nd lube base oil (synthetic hydrocarbon oil), or the 1st lube base oil (mineral oil) and the
2 lube base oils (mineral oil and the mixed base oil of synthesis hydrocarbon).1st lube base oil (mineral oil), the 2nd lubrication oil base
It can also be two or more that plinth oil (mineral oil) and the 2nd lube base oil (synthetic hydrocarbon oil) can be respectively a kind.
The content of the 1st lube base oil is 5～90 mass % on the basis of lube base oil total amount, preferably 10～
80 mass %, more preferably 30～60 mass %.The content of the 2nd lube base oil is with lube base oil total amount as base
Standard is 10～95 mass %, preferably 20～90 mass %, more preferably 40～70 mass %.If the 1st and the 2nd lubricating oil
Beyond above-mentioned scope, then there is the risk that cannot obtain desired power consumption minimizing effect in the content of base oil.
The content of lube base oil with lubricant composition total amount benchmark, preferably 70～98 mass %, particularly preferably
It is 80～97 mass %.
Thickening agent preferably comprises selected from metallic soap based compound (also referred to as " metallic soap system thickening agent ") and carbamide compound is (also
In referred to as " urea system thickening agent ") more than a kind.
As metallic soap system thickening agent, single soap and compound soap can be enumerated.Single soap refers to, fatty acid or oils and fats is used
The metallic soap of the saponification such as alkali metal hydroxide or alkaline earth metal hydroxide.Compound soap refers to, uses in single soap
Fatty acid on the basis of be further combined the organic acid Composite of different molecular structures.Fatty acid may also be and has
The derivative of fatty acid of hydroxyl etc..Fatty acid can be the aliphatic carboxylic acids such as stearic acid, it is possible to is the aromatic series such as p-phthalic acid
Carboxylic acid.As fatty acid, it is possible to use unitary aliphatic carboxylic acid or dibasic aliphatic carboxylic acid, the aliphatic of such as carbon number 6～20
Carboxylic acid, particularly preferably can use the unitary aliphatic carboxylic acid of carbon number 12～20, the dibasic aliphatic carboxylic acid of carbon number 6～14.Make
For fatty acid, preferably comprise the unitary aliphatic carboxylic acid of 1 hydroxyl.As organic acid with fatty acid composition in compound soap, excellent
Select acetic acid；The binary acid such as Azelaic Acid, decanedioic acid；Benzoic acid etc..
Metal as metallic soap system thickening agent, it is possible to use the alkali metal such as lithium, sodium；The alkaline-earth metal such as calcium；As aluminum
Amphoteric metal.Wherein, alkali metal is preferably used, particularly preferably uses lithium.
Metallic soap system thickening agent can be used singly or in combination of two or more.Metallic soap system thickening agent
Content such as on the basis of lubricant composition total amount, preferably 2～30 mass %, more preferably 3～20 mass %, further
It is preferably 10～20 mass %.
As urea system thickening agent, such as, can use the allophanamide chemical combination obtained by diisocyanate and the reaction of monoamine
Thing；The polyurea compound etc. obtained by diisocyanate and monoamine, the reaction of diamidogen.
As diisocyanate, aliphatic diisocyanate, aromatic diisocyanate etc. can be enumerated.As aliphatic
Diisocyanate, such as, can enumerate the two different of the alkyl with saturated and/or undersaturated straight-chain, branched or ester ring type
Cyanate.Such as preferably PPDI, toluene di-isocyanate(TDI), biphenyl diisocyanate, diphenyl methane two isocyanide
Acid esters, octadecane diisocyanate, decane diisocyanate, hexane diisocyanate etc..As monoamine, aliphatic can be enumerated
Monoamine, aromatic series monoamine etc..As aliphatic monoamine, such as, can enumerate and there is saturated and/or undersaturated straight-chain, side chain
The monoamine of the alkyl of shape or ester ring type.Such as preferably octylame, lauryl amine, cetylamine, 18-amine., oleyl amine, aniline, para-totuidine,
Cyclohexylamine etc..As diamidogen, aliphatic diamine, aromatic diamine etc. can be enumerated.As aliphatic diamine, such as, can enumerate
There is the diamidogen of the alkyl of saturated and/or undersaturated straight-chain, branched or ester ring type.Such as preferably ethylenediamine, propane diamine,
Butanediamine, hexamethylene diamine, octamethylenediamine, phenylenediamine, toluylene diamidogen, benzene dimethylamine, MDA etc..
Urea system thickening agent can be used singly or in combination of two or more.The content of urea system thickening agent is such as
On the basis of lubricant composition total amount, preferably 2～30 mass %, more preferably 3～20 mass %, more preferably 10
～20 mass %.
Lubricant composition preferably comprises organic molybdenum.Thus, the long lifetime of bearing can be realized.As organic-molybdenum
Compound, can exemplify the succimide network of molybdenum dithiocarbamate, molybdenum dithiophosphate, the amine complex of molybdenum, molybdenum
Compound, the molybdenum salt of organic acid, the molybdenum salt etc. of alcohol.Wherein, from the viewpoint of the long lifetime of bearing, preferably dithiocarbamates first
Acid molybdenum, molybdenum dithiophosphate.
As molybdenum dithiocarbamate, such as, can use the compound shown in following formula (1).
In formula (1), R1、R2、R3And R4The most identical or different, represent carbon number 2～24, the alkane of preferred carbon number 4～13 respectively
Base or carbon number 6～24, the alkyl such as aryl (including alkylaryl) of preferred carbon number 8～15.X1、X2、X3And X4The most identical or
Difference, represents sulphur atom or oxygen atom respectively.The most so-called alkyl includes primary alkyl, secondary alkyl and tertiary alkyl.They can
Be straight-chain can also be branched.
As the preferred example of alkyl, can enumerate ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl,
Decyl, undecyl, dodecyl, tridecyl, myristyl, pentadecyl, cetyl, heptadecyl, octadecyl
Deng.They can be primary alkyl, secondary alkyl or tertiary alkyl, can be additionally straight-chain, it is also possible to be branched.As (alkyl)
The preferred example of aryl, can enumerate phenyl, tolyl, ethylphenyl, propyl group phenyl, butyl phenyl, amyl group phenyl, hexyl benzene
Base, octyl phenyl, nonyl phenyl, decyl phenyl, undecyl phenyl, dodecylphenyl etc..Alkyl in (alkyl) aryl
Can be primary alkyl, secondary alkyl or tertiary alkyl, can be additionally straight-chain, it is possible to be branched.(alkyl) aryl includes phase
For whole replacement isomer that the position of substitution of the alkyl of aryl is different.
As preferred molybdenum dithiocarbamate, specifically, diethyldithiocar bamic acid can be exemplified
Molybdenum sulfide, dipropyl disulfide for carbamic acid molybdenum sulfide, dibutyl dithiocaarbamate molybdenum sulfide, diamyl disulfide for amino
Formic acid molybdenum sulfide, dihexyl dithiocarbamate disulphide, dioctyl dithiocarbamate disulphide, didecyl dithio
Carbamic acid molybdenum sulfide, two (dodecyl) dithiocarbamate disulphide, two (butyl phenyl) aminodithioformic acid sulfur
Change molybdenum, two (nonyl phenyl) dithiocarbamate disulphide, diethyldithiocar bamic acid sulfuration oxygen molybdenum, dipropyl disulfide
For carbamic acid sulfuration oxygen molybdenum, dibutyl dithiocaarbamate sulfuration oxygen molybdenum, diamyl dithiocarbamate sulfuration oxygen molybdenum,
Dihexyl aminodithioformic acid sulfuration oxygen molybdenum, dioctyl aminodithioformic acid sulfuration oxygen molybdenum, didecyl dithiocarbamates first
Acid sulfuration oxygen molybdenum, two (dodecyl) aminodithioformic acid sulfuration oxygen molybdenum, the sulfuration of two (butyl phenyl) aminodithioformic acid
Oxygen molybdenum, two (nonyl phenyl) aminodithioformic acid sulfuration oxygen molybdenum and their mixture etc..Their aminodithioformic acid
Alkyl in molybdenum can be straight-chain can also be branched, the bonding position of the alkyl in alkyl phenyl is arbitrary.As
These molybdenum dithiocarbamates, it is also possible to the chemical combination of the alkyl in 1 molecule with different carbon number and/or structure is preferably used
Thing.
As molybdenum dithiophosphate, it is possible to use the molybdenum dithiophosphate commercially available as lube oil additive, such as may be used
To use the compound shown in following formula (2).
In formula (2), R5And R6Can be same to each other or different to each other, represent the alkyl of carbon number more than 1 respectively.X5、X6、X7、X8With
X9Can be same to each other or different to each other, represent oxygen atom or sulphur atom respectively.A, b and c represent the integer of 1～6 respectively.Wherein, X5、
X6、X7、X8And X9In at least one represent sulphur atom.As R5And R6Shown alkyl, such as, can enumerate carbon number 1～24
Alkyl, the cycloalkyl of carbon number 5～7, the alkyl-cycloalkyl of carbon number 6～11, the aryl of carbon number 6～18, the alkyl virtue of carbon number 7～24
Base and the aryl alkyl of carbon number 7～12.
About the content of organic molybdenum, from the viewpoint of the long lifetime of bearing, with lubricant composition total amount
On the basis of, it is scaled molybdenum element amount, more than preferably 300 mass ppm, more than more preferably 500 mass ppm, further preferably
It is more than 600 mass ppm, more than particularly preferably 700 mass ppm.About the content of organic molybdenum, to bearing performance
Additive effect and manufacturing cost from the viewpoint of, on the basis of lubricant composition total amount, be scaled molybdenum element amount, be preferably
Below 50000 mass ppm, below more preferably 40000 mass ppm, more preferably below 30000 mass ppm.It addition,
The content of organic molybdenum, with lubricant composition total amount benchmark, is preferably more than 0.1 mass % as molybdenum compound weight,
More than more preferably 0.5 mass %, more preferably more than 1 mass %.About the content of organic molybdenum, to bearing
From the viewpoint of the additive effect of performance and manufacturing cost, on the basis of lubricant composition total amount, as molybdenum compound weight
It is preferably below 15 mass %, below more preferably 10 mass %, more preferably below 5 mass %.
Lubricant composition, as required can be containing being generally used for lubricating oil, grease on the basis of mentioned component
Additive.As such additive, such as, can enumerate detergent, dispersant, antiwear additive, viscosity index improver, resist
Oxidant, extreme pressure agent, antirust agent, corrosion inhibiter, metal deactivator, kollag etc..The content of these additives is with grease
Total composition benchmark, below preferably 10 mass %, below more preferably 5 mass %.
The denseness of lubricant composition is preferably 220～300, more preferably 225～295, more preferably 230～
290, particularly preferably 230～285.The denseness of lubricant composition within the above range time, it is possible to the most less by bearing
Rotate the electric energy consumed.As the method for the denseness of regulation lubricant composition, aforementioned 1st lube base of regulation can be enumerated
Each composition when oil, the 2nd lube base oil and the kind of thickening agent and blending ratio and aftermentioned manufacture lubricant composition
The method of mixed method (such as mixing number of times, heating-up temperature, rate of cooling, rolling condition) etc..
The denseness of the present invention represents the mixing consistency recorded according to JIS K2220.Concrete condition determination is as follows.By sample
Put in denseness mensuration crucible, after remaining 25 DEG C, use blender back and forth mixing 60 times in 1 minute of regulation.Then,
Remove the sample of excess with scraper, after making the surface of sample smooth, make the circular cone of regulation drop in sample 5 seconds, will invade
10 times of values of the degree of depth (mm) entered are set to mixing consistency.
Another embodiment of the present invention is the grease group containing lube base oil, thickening agent and organic molybdenum
Compound, aforementioned lube base oil contains the 1st lube base oil and the 2nd lube base oil, described 1st lube base oil
The %C of the n-d-M ring analysis value according to ASTM D3238ABe 2～8, %CPIt is 50～75, described 2nd lube base oil
The %C of the n-d-M ring analysis value according to ASTM D3238ABe less than 1, %CPIt is more than 70, with aforementioned lube base oil total amount
On the basis of, the content of aforementioned 1st lube base oil is 5～90 mass %, the content of aforementioned 2nd lube base oil be 10～
95 mass %, the denseness of aforementioned lubricant composition is 220～300.This embodiment plays and can have concurrently when bearing rotates
The minimizing of power consumption and the remarkable result of the long lifetime of bearing.
The manufacture method of the lubricant composition of present embodiment possesses the 1st lube base oil, the 2nd lube base
Oil and thickening agent are obtained by mixing the operation of lubricant composition.By the 1st lube base oil and the 2nd lube base oil with profit
On the basis of lubricant base oil total amount, the content of the 1st lube base oil is made to become 5～90 mass %, the 2nd lube base oil
Content becomes the mode of 10～95 mass % and mixes.
In present embodiment, can be by previously prepared thickening agent and the 1st lube base oil and the 2nd lube base oil
Mixing, or thickening can also be compounded in the 1st lube base oil or the 2nd lube base oil or their mixed base oil
The raw material of agent, makes this raw material react with each other and obtain thickening agent in base oil.Such as, metallic soap system thickening agent is being used
In the case of, can be compounded in lube base oil with the form of metallic soap, it is also possible to by carboxylic acid and source metal (slaine,
Slaine hydroxide etc.) it is compounded respectively in lube base oil, make carboxylic acid and source metal occur when manufacturing grease anti-
Metal soap thickened agent should be made.In the case of using urea system thickening agent, can be compounded in lubrication with the form of carbamide compound
In oil base oil, it is also possible to diisocyanate and amine (monoamine, diamidogen etc.) are compounded in lube base oil, manufacturing lubrication
Make diisocyanate and amine react during fat and make urea system thickening agent.
About the grease composition that the 1st lube base oil, the 2nd lube base oil and thickening agent are obtained by mixing
Thing, can carry out utilizing the dispersion process etc. of roller or grinding machine as required.
Embodiment
Below, further illustrate the present invention according to embodiment, but the invention is not restricted to following example.
[base oil A]
Distillate oil after air-distillation residue carries out decompression distillation is carried out solvent refining and obtains the profit of following character
Lubricant base oil, is used as base oil A by this lube base oil.
Kinematic viscosity at 40 DEG C: 37.6mm2/s
Viscosity index (VI): 107
Flash-point: 220 DEG C
%CP: 66
%CA: 5.2
[base oil B]
Use the end fraction obtained by fuel oil hydrogenation decomposer as the raw material of lube base oil, use hydrotreating
Catalyst carries out hydrotreating.Now, in the way of making the resolution ratio of the normal paraffin hydrocarbons in raw oil become below 10 mass %,
Regulation reaction temperature and liquid hourly space velocity (LHSV).And then, to the treated object obtained by hydrotreating, use and noble metal is contained
Amount is adjusted to the zeolite system catalyst for hydrogenation de-waxing of 0.1～5 mass %, carries out hydrogenation de-within the temperature range of 315～325 DEG C
Wax, obtains dewaxed oil.And then, use Hydrobon catalyst that this dewaxed oil is carried out hydrofinishing.Thereafter, will be by distillation
The lube base oil of the following character obtained is used as base oil B.
Kinematic viscosity at 40 DEG C: 36.8mm2/s
Viscosity index (VI): 130
Flash-point: 240 DEG C
%CP: 79
%CA: 0
Carbamide adduction value: 2 mass %
[base oil C]
The poly-alpha-olefin (INEOS society Durasyn166) of the synthesis hydrocarbon for following character is used as base oil C.
Kinematic viscosity at 40 DEG C: 30.8mm2/s
Viscosity index (VI): 135
Flash-point: 250 DEG C
%CP: 91
%CA: 0
Carbamide adduction value: 0 mass %
[base oil D]
After in the decompression of solvent refining base oil being distilled, isolated fraction furfural carries out solvent extraction, add
Hydrogen processes, and then, carries out solvent dewaxing with butanone-toluene Mixed Solvent.Will be removed when solvent dewaxing, as loose
Paraffin and the wax composition that obtains are used as the raw material of lube base oil, carry out hydrotreating.Now, regulation reaction temperature and liquid
Space velocity, is turned down the temperature conditions of the Hydrodewaxing of the treated object obtained by hydrotreating to about 300 DEG C, right
The dewaxed oil obtained carries out hydrofinishing.Thereafter, by the following character that obtains, carbamide adduction value 5 mass % by distillation
Lube base oil be used as base oil D.
Kinematic viscosity at 40 DEG C: 32.0mm2/s
Viscosity index (VI): 130
Flash-point: 240 DEG C
%CP: 75
%CA: 0
Carbamide adduction value: 5 mass %
[for formation testing 1-1～1-10]
Base oil A, B, C and D are put in rustless steel container with the compounding amount (representing with quality %) shown in table 1～2.
In the case of using urea based compound as thickening agent, amine and the isocyanates of the raw material as urea based compound are added appearance
In lube base oil in device, it is heated to 150 DEG C, is stirred with magnetic stirrer, make amine react with diisocyanate.
Then, it is dehydrated, is cooled to room temperature afterwards, thus obtains the compositions of semi-solid.Make using metallic soap based compound
In the case of thickening agent, lithium stearate is added in lube base oil, be heated to 200 DEG C, followed by cool down, thus
Compositions to semi-solid.And then, the compositions of each semi-solid obtained adds two as phenol system antioxidant
Butylated Hydroxytoluene, carries out dispersion process by 3 roller mills, obtains the lubricant composition with the composition shown in table 1～2.
[evaluation test 1]
Measure amount of power consumption when bearing when using each lubricant composition rotates by the following method.Bearing uses NTN
The double row tapered roller axis of a cylinder of society holds 4T-CRI-0868.Before test, after Bearing inner organic solvent is cleaned fully,
With syringe, experiment oil preparation (lubricant composition) is injected in the gap of the roller of bearing, rail wheel, keeper.Experiment makes
With 4 bearings (2 bearing × 2 group) altogether being filled with identical oil preparation.Wheel in fixing bearing, with the motor via belt pulley
(An Chuan motor society system, TYPE:FEQ, 2.2kW) makes it rotate along constant direction, with wattmeter (HIOKI society system, CE3169,
CLAMP ON POWER HiTESTER) measure motor amount of power consumption.Bearing rotating speed is set to 1300rpm, temperature is set to room
Temperature, compares the cumulative power consumption (kW) when rotating continuously of 2 hours.Repetition experiment number is set to 3 times.The obtained results are shown in
Table 1～2.It should be noted that bearing power consumption and electrical power slip (%: on the basis of formation testing 1-6) in table 1～2 are 3
The meansigma methods of secondary experiment.Electrical power slip in the present embodiment, when power consumption is less than benchmark, represents with negative value.
Table 1
Table 2
[for formation testing 2-1～2-12]
Base oil A, B, C and D and thickening agent are put into stainless with the compounding amount (representing with quality %) shown in table 3～5
In steel vessel.In the case of using metallic soap based compound (single soap) as thickening agent, lithium stearate is added lubrication
In oil base oil, after being heated to 200 DEG C, cool down, thus obtain the compositions of semi-solid.Using metallic soap system
In the case of compound (compound soap) is as thickening agent, 12-hydroxy stearic acid, Azelaic Acid and Lithium hydrate are added lube base
In oil, it is heated to 200 DEG C and makes it react and make compound soap, cool down, obtain the compositions of semi-solid.Use urea system
In the case of compound is as thickening agent, amine and the isocyanates of the raw material as urea based compound are added the lubricating oil in container
In base oil, it is heated to 150 DEG C, is stirred with magnetic stirrer, make amine react with diisocyanate.Then, take off
Water, is cooled to room temperature afterwards, thus obtains the compositions of semi-solid.And then, in the compositions of each semi-solid obtained
Add as the ditertbutylparacresol of phenol system antioxidant, carry out dispersion process by 3 roller mills, obtain having shown in table 3～5
The lubricant composition of composition.It addition, to the lubricant composition obtained, measure denseness (mixing consistency) according to JIS K2220.
[evaluation test 2-1]
Measure amount of power consumption when bearing when using each lubricant composition rotates by the following method.Bearing uses NSK
The two-row ball bearing 7008A-DF of society.Before the test, after being cleaned fully by Bearing inner organic solvent, syringe is used
Experiment oil preparation (lubricant composition) is injected in the gap of the pearl of bearing, rail wheel, keeper.Experiment use is filled with phase
4 bearings (2 bearing × 2 group) altogether with oil preparation.Wheel in fixing bearing, with motor (the An Chuan motor society via belt pulley
System, TYPE:FEQ, 2.2kW) make it rotate along constant direction, with wattmeter (HIOKI society system, CE3169, CLAMP ON POWER
HiTESTER) amount of power consumption of motor is measured.Bearing rotating speed is set to 1300rpm, temperature is set to room temperature, compare 2 hours
Cumulative power consumption (kW) when rotating continuously.Repetition experiment number is set to 3 times.The obtained results are shown in table 3～5.Need
Bright, bearing power consumption and electrical power slip (%: on the basis of formation testing 2-11) in table 3～5 are the average of 3 experiments
Value.
[evaluation test 2-2]
Each lubricant composition is implemented the test as evaluation test 1.The obtained results are shown in table 3～5.Need
Illustrating, bearing power consumption and electrical power slip (%: on the basis of formation testing 2-11) in table 3～5 are the flat of 3 experiments
Average.
Table 3
Table 4
Table 5
[for formation testing 3-1～3-8]
Using base oil A and B, thickening agent and molybdenum dithiocarbamate (the molybdenum element content as organic molybdenum
Being 29 mass %, sulfur content is 28 mass %) and molybdenum dithiophosphate (molybdenum element content is 8 mass %, phosphorus element content
Being 6 mass %, sulfur content is 12 mass %) (represent with quality % with the compounding amount shown in table 6～7.Molybdenum element amount converts
Value is charged to the most in the lump) put in rustless steel container.Using the metallic soap based compound (single soap) situation as thickening agent
Under, lithium stearate is added in lube base oil, after being heated to 200 DEG C, cool down, thus obtain the group of semi-solid
Compound.Use metallic soap based compound (compound soap) as thickening agent in the case of, by 12-hydroxy stearic acid, Azelaic Acid and
Lithium hydrate adds in lube base oil, is heated to 200 DEG C and makes it react and make compound soap, cools down, thus obtain
The compositions of semi-solid.In the case of using urea based compound as thickening agent, using the amine of the raw material as urea based compound
Add in the lube base oil in container with isocyanates, be heated to 150 DEG C, be stirred with magnetic stirrer, make amine and two
Isocyanates reacts.Then, it is dehydrated, is cooled to room temperature afterwards, thus obtains the compositions of semi-solid.And then,
In the compositions of each semi-solid obtained, add other additive (phenol system antioxidant, corrosion inhibiter etc.), enter by 3 roller mills
Row dispersion processes, and obtains the lubricant composition with the composition shown in table 6～7.It addition, to the lubricant composition obtained,
Denseness (mixing consistency) is measured according to JIS K2220.
[evaluation test 3-1 (bearing life)]
Each lubricant composition is carried out Hmp grease bearing life test.Specifically, according to ASTM-D3336,
Bearing (6204ZZ) is filled 2g sample grease, at temperature 150 DEG C, makes bearing with rotating speed 10000rpm, thrust loading 66N
Continuously running, using adjoint insufficient lubrication, the time till abnormal operating that reaches is as bearing life (hour) record.
[evaluation test 3-2 (bearing power consumption)]
Each lubricant composition is implemented the test as evaluation test 2-1.The obtained results are shown in table 6～7.Need
It is noted that the bearing power consumption in table 6～7 and electrical power slip (%: for formation testing 3-7 benchmark) are the average of 3 experiments
Value.
Table 6
Table 7
Industrial applicability
The lubricant composition of the present invention plays bearing and rotates the remarkable result that the electric energy consumed is few.Therefore, the present invention
Grease can be suitably used for rolling bearing, sliding bearing, ball-screw, unit such as machinery such as linear motion guiding piece, gear etc.
The lubrication of part, is useful for industrial machine, conveying mechanical system etc..
Claims (9)
1. a lubricant composition, it contains lube base oil and thickening agent, and described lube base oil contains:
1st lube base oil, according to the %C of the n-d-M ring analysis value of ASTM D3238ABe 2～8, %CPIt is 50～75；With
2nd lube base oil, according to the %C of the n-d-M ring analysis value of ASTM D3238ABe less than 1, %CPIt is more than 70, urinates
Element adduction value is below 4 mass %,
On the basis of described lube base oil total amount, the content of described 1st lube base oil is 5～90 mass %, described
The content of the 2nd lube base oil is 10～95 mass %.
Lubricant composition the most according to claim 1, its denseness is 220～300.
Lubricant composition the most according to claim 1 and 2, it is possibly together with organic molybdenum.
Lubricant composition the most according to claim 3, wherein, described organic molybdenum contains selected from dithiocarbamates
At least one in formic acid molybdenum and molybdenum dithiophosphate.
5. according to the lubricant composition according to any one of Claims 1 to 4, wherein, described 1st lube base oil has
It is 10～700mm at 40 DEG C2The kinematic viscosity of/s and the viscosity index (VI) of 90～120.
6. according to the lubricant composition according to any one of Claims 1 to 5, wherein, described 2nd lube base oil has
It is 10～5000mm at 40 DEG C2The kinematic viscosity of/s and the viscosity index (VI) of 110～150.
7. according to the lubricant composition according to any one of claim 1～6, wherein, described 2nd lube base oil contains
At least one in mineral oil and synthesis hydrocarbon.
8., according to the lubricant composition according to any one of claim 1～7, wherein, described thickening agent contains selected from metal
At least one in soap based compound and carbamide compound.
9. a lubricant composition, it contains lube base oil, thickening agent and organic molybdenum, described lube base
Oil contains:
1st lube base oil, according to the %C of the n-d-M ring analysis value of ASTM D3238ABe 2～8, %CPIt is 50～75；With
2nd lube base oil, according to the %C of the n-d-M ring analysis value of ASTM D3238ABe less than 1, %CPIt is more than 70,
On the basis of described lube base oil total amount, the content of described 1st lube base oil is 5～90 mass %, described
The content of the 2nd lube base oil is 10～95 mass %,
The denseness of described lubricant composition is 220～300.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-249344 | 2013-12-02 | ||
| JP2013249344 | 2013-12-02 | ||
| JP2014052406 | 2014-03-14 | ||
| JP2014052403 | 2014-03-14 | ||
| JP2014-052406 | 2014-03-14 | ||
| JP2014-052403 | 2014-03-14 | ||
| PCT/JP2014/081862 WO2015083695A1 (en) | 2013-12-02 | 2014-12-02 | Grease composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105814178A true CN105814178A (en) | 2016-07-27 |
Family
ID=53273457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480065541.0A Pending CN105814178A (en) | 2013-12-02 | 2014-12-02 | Grease composition |
Country Status (5)
| Country | Link |
|---|---|
| JP (2) | JP6682271B2 (en) |
| KR (1) | KR102238222B1 (en) |
| CN (1) | CN105814178A (en) |
| SG (2) | SG10201804545UA (en) |
| WO (1) | WO2015083695A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110892047A (en) * | 2017-08-31 | 2020-03-17 | 出光兴产株式会社 | Grease composition |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017024096A (en) * | 2015-07-17 | 2017-02-02 | 日本電産サンキョー株式会社 | Industrial robot and control method for industrial robot |
| JP7303659B2 (en) * | 2019-04-26 | 2023-07-05 | Ntn株式会社 | tapered roller bearing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06108078A (en) * | 1992-09-30 | 1994-04-19 | Showa Shell Sekiyu Kk | Lubricating grease composition |
| CN102239241A (en) * | 2008-10-07 | 2011-11-09 | 吉坤日矿日石能源株式会社 | Lubricant base oil and a process for producing the same, and lubricating oil composition |
| CN103339241A (en) * | 2011-03-25 | 2013-10-02 | 吉坤日矿日石能源株式会社 | Lubricating oil composition |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4397754B4 (en) * | 1992-08-05 | 2011-05-12 | JTEKT Corp., Osaka-shi | Grease for a rolling bearing and use of a grease for sealing rolling bearings |
| JP5806797B2 (en) * | 2008-10-07 | 2015-11-10 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricating oil base oil and method for producing the same, lubricating oil composition |
| JP5815223B2 (en) | 2010-11-12 | 2015-11-17 | Ｊｘ日鉱日石エネルギー株式会社 | Engine oil composition |
| CN103958653B (en) * | 2011-11-28 | 2018-04-03 | 国际壳牌研究有限公司 | Lubricant composition |
| JP2014205860A (en) * | 2014-08-04 | 2014-10-30 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricant base oil and manufacturing method therefor, lubricant composition |
-
2014
- 2014-12-02 JP JP2015551515A patent/JP6682271B2/en active Active
- 2014-12-02 CN CN201480065541.0A patent/CN105814178A/en active Pending
- 2014-12-02 SG SG10201804545UA patent/SG10201804545UA/en unknown
- 2014-12-02 SG SG11201604115WA patent/SG11201604115WA/en unknown
- 2014-12-02 WO PCT/JP2014/081862 patent/WO2015083695A1/en active Application Filing
- 2014-12-02 KR KR1020167017329A patent/KR102238222B1/en active IP Right Grant
-
2019
- 2019-12-16 JP JP2019226329A patent/JP6826651B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06108078A (en) * | 1992-09-30 | 1994-04-19 | Showa Shell Sekiyu Kk | Lubricating grease composition |
| CN102239241A (en) * | 2008-10-07 | 2011-11-09 | 吉坤日矿日石能源株式会社 | Lubricant base oil and a process for producing the same, and lubricating oil composition |
| CN103339241A (en) * | 2011-03-25 | 2013-10-02 | 吉坤日矿日石能源株式会社 | Lubricating oil composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110892047A (en) * | 2017-08-31 | 2020-03-17 | 出光兴产株式会社 | Grease composition |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015083695A1 (en) | 2015-06-11 |
| SG10201804545UA (en) | 2018-07-30 |
| JPWO2015083695A1 (en) | 2017-03-16 |
| JP2020041162A (en) | 2020-03-19 |
| KR102238222B1 (en) | 2021-04-09 |
| JP6826651B2 (en) | 2021-02-03 |
| KR20160093041A (en) | 2016-08-05 |
| JP6682271B2 (en) | 2020-04-15 |
| SG11201604115WA (en) | 2016-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102239240B (en) | Grease composition | |
| EP2935539B1 (en) | Grease composition | |
| CN104769087B (en) | Grease composition | |
| CA2777188C (en) | Grease composition for bearing of wind power generator | |
| KR20110033926A (en) | Grease composition | |
| WO2013079559A1 (en) | Grease composition | |
| EP2913385B1 (en) | Grease composition | |
| KR20110031482A (en) | Grease composition | |
| EP2794828A1 (en) | Grease composition | |
| CN103732729B (en) | EV, HEV drive bearing of motor lubricant composition and EV, HEV to drive bearing of motor | |
| JP6826651B2 (en) | Grease composition | |
| KR102252297B1 (en) | Grease composition and hub unit | |
| KR20130118936A (en) | Grease composition | |
| KR20180101405A (en) | Grease composition | |
| Donahue | Lubricating grease: a chemical primer | |
| JP6804156B2 (en) | Grease composition for rolling bearings | |
| RU2633350C1 (en) | Plastic antifriction high-temperature water-resistant lubricant | |
| CN106661487B (en) | Grease composition | |
| JP5349246B2 (en) | Silicone grease composition | |
| JP5513147B2 (en) | Grease composition and grease composition automatic greasing device | |
| JP6887758B2 (en) | Grease composition | |
| JP2022092773A (en) | Grease composition and method for lubricating sliding part using the grease composition | |
| JP6682270B2 (en) | Grease composition | |
| JP2023146941A (en) | grease composition | |
| JP2023146942A (en) | grease composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |
|
| RJ01 | Rejection of invention patent application after publication |