CN106867633B - A kind of high-speed railway axle box double row tapered roller bearing lubricant composition and preparation method - Google Patents
A kind of high-speed railway axle box double row tapered roller bearing lubricant composition and preparation method Download PDFInfo
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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
- 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
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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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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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
- 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
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
- C10M2207/1225—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic used as thickening agent
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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
- 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
- C10M2207/1265—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 used as thickening agent
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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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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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
- 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
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- 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
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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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
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- 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
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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
- 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
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
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- 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
- C10N2030/26—Waterproofing or water resistance
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- 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
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Abstract
The present invention provides a kind of high-speed railway axle box double row tapered roller bearing lubricant composition and preparation method, thickening agent is made of the reactant of 12- hydroxy stearic acid, enanthic acid, tetradecanoic acid and monohydrate lithium hydroxide；Additive includes: sulfoacid calcium, extreme pressure agent, antirust agent, renovation agent and antioxidant.12- hydroxy stearic acid, enanthic acid and sulfoacid calcium are added in base oil, are mixed and heated to 60~90 DEG C, the monohydrate lithium hydroxide containing tetradecanoic acid is added and is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1~1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall is canned after three-roller pressure oil three times after temperature is reduced to 40~60 DEG C to 120 DEG C hereinafter, sequentially add extreme pressure agent, antirust agent, renovation agent and antioxidant.The lubricating grease is widely used in high-speed railway industry, reduces axle box bearing abrasion, while being able to extend and changing the rouge period.
Description
Technical field
The invention belongs to technical field of lubricating grease, more particularly to high-speed railway double-row conical axle box bearing lubricating grease
Composition and preparation method.
Background technique
Since Britain in 1825 has built the first in the world railway, due to the advantage on travelling speed and transport energy,
Railway becomes the communications and transportation backbone of various countries within the very long period of history.Since the 1950s, highway and aviation fortune
Defeated rapid development makes railway occupy disadvantage in speed, and long-distance passenger transportation is squeezed by air transportation, and short-distance passenger transportation is taken by Automobile Transportation
Generation, railway enter the passive situation of " sunset industry ".However enter after the 1970s, since energy crisis, environment are disliked
The puzzlement of the problems such as change, traffic safety, people re-recognize the value of railway.Especially high-speed railway is fast with its speed, transports
The a series of technical advantages such as energy is big, low energy consumption, pollution is light, have adapted to the new demand of development of modern society economy.
In October, 1964, Japan are run in Tokaido the Shinkansen Tokyo to Osaka high-speed railway with 210 kilometers/hour, method
State built first high-speed railway (southeast TGV line) in 1981, and high-speed railway shows vigorous vitality.Since it has
Apparent economic benefit and social benefit, thus many countries and regions such as Europe, North America and Asia build one after another, reconstruct or
High-speed railway is built in planning.By the end of the year 2015, Chinese Railway revenue kilometres have reached 12.1 ten thousand kilometers, and wherein high-speed rail is more than
1.9 ten thousand kilometers, 60% or more of world's high-speed rail operating mileage is accounted for, is the state that Development of High Speed Railway is most fast, largest in the world
Family.China have become in the world high speed rail system technology is most complete, integration capability is most strong, operating mileage longest, the speed of service most
High, the maximum country of building scale.
With the high speed of railroad train, critical component of the bearing as bullet train, performance and reliability are increasingly
It attracts attention.Part manufacturing quotient needs designing new product, further increases the performance of vehicle bearing, constantly expands its service condition
With the range of environment.The static and dynamic radial direction that train axle box bearing is constituted in addition to the weight of train to be supported and vehicle load
Outside load, additional unsteady force is still suffered from axial direction.Since axle box bearing is an important set in running gear
At part, reliability generates significant impact to the safety in operation of train.Therefore, domestic and international bearing producer especially payes attention to axle box
The structure choice and design and manufacture of bearing.
The train that at full throttle 200km/h is operated above is known as bullet train, and bullet train can be by locomotive traction
The train of car composition, is also possible to the train of EMU composition, referred to as high-speed EMUs.The high-speed railway of China's production at present
Car has the EMU of tetra- vehicles of CRH1, CRH2, CRH5 and CRH3, and overall trip speed has all reached 250km/h or higher speed.
Most of to use double row tapered roller bearing as the important part at EMU traveling position, security reliability directly affects column
The operational safety of vehicle.Each bogie has 4 axle boxes for installing bearing, and bearing inner race is installed on axle, constitutes train
Running part.Since bearing bears radial direction and axial load simultaneously in use, and bearing revolving speed is higher, it is ensured that
The longer freedom from repairs phase, so the greasy property to bearing is more demanding.
The traction power of high-speed railway, in addition to the railway internal combustion engine traction of the parts such as English, beauty, moral, other is that electric power is led
Draw, majority uses EMU.The increase of bullet train running resistance and speed it is square proportional, and unstable wear and speed are not
Be it is linear but square or cubic relationship.Technical failure is mainly the premature abrasion of components, therefore is selected in high speed traveling
Suitable lubriation material and lubricating system are to reduce friction, energy saving, the elongate member service life is crucial problem.
High speed motor car bearing uses rolling bearing, and the overwhelming majority uses grease lubrication.Railway freight-car axis is great, revolving speed is low,
The base oil of bearing grease is asked to have higher viscosity, can guarantee has stable elastohydrodynamic lubrication under any service condition, to reduce mill
Damage extends the service life.But the high viscosity base oil of rouge will increase bearing temperature instead under high-speed condition, and that shortens grease uses the longevity
Life accelerates bearing fatigue.Speed is different, and Basic oil Viscosity is also different, so the choosing of the Basic oil Viscosity of express locomotive bearing grease
It selects particularly significant.Speed is high simultaneously, and impact load is also big, it is desirable to which rouge has preferable abrasion resistant extreme-pressure performance.
Currently used high-speed bearing lubricating grease has following relevant report:
101622333 B of CN does not include above-mentioned ureas by carbamide compounds for cooperation in the urea-base grease of thickener
The kinematic viscosity of high-speed bearing lubricating grease made of the non-urea-base grease of compound, 40 DEG C of oil of this grease base plinth is 15
~40mm2/ s, angular contact ball bearing, the cylinder roller bearing etc. for being 1,700,000 or more applied to dmN value.CN 101812350 A
It is thickened synthetic oil by polyureas, makes electronics, machine-tool industry, textile chemical fiber of its grease applications in 2,000,000 or more dmN value
Etc. industries high-speed bearing.102027102 B of CN is cooperation intramolecular tool in the urea-base grease of thickener by carbamide compounds
The high-speed bearing lubricating grease for thering is the compound amide lithium soap of amido bond to constitute as the non-urea grease of thickener, this lubricating grease
40 DEG C of base oil of kinematic viscosity be 15~40mm2/ s, the bearing work mechanism main shaft for being 1,700,000 or more applied to dmN value
High-speed bearing lubricating grease used in the rolling bearing of equal high-speed rotating shafts.102167991 B of CN is thickened by compound lithium soap
Synthetic oil, Esters oil and mineral oil etc., the kinematic viscosity that 100 DEG C of base oil are 5~40mm2Extreme pressure is added simultaneously and wear-resistant adds by/s
Add agent etc., is especially used for the lubricating grease of high-speed railway traction locomotive bearing of motor.104212613 A of CN passes through compound soap
It is thickened base oil, extreme pressure, antirust and the additives such as wear-resistant are added, one layer of lubricating cream can be formed in bearing surface, protect axis
It holds, and there is good performance resistant to high temperature, can work normally at high temperature.104212617 A of CN describes one kind and changes
Into high-speed bearing lubricating grease.
But above-mentioned high-speed bearing lubricating grease major applications, in the small bearing of high speed, the thickening agent system of selection is mainly poly-
The heat setting and storage hardening of urea, polyureas is a technological difficulties, still cannot be solved at all at present.There are also above-mentioned high speeds to moisten
It is low and select Basic oil Viscosity less than normal that consistent lubricant only pays close attention to bearing temperature rise, needs to pay close attention to high speed motor car in south and runs high-temperature grease
Losing issue.In addition above-mentioned high-speed bearing lubricating grease is not concerned with low temperature properties requirement, especially for northern cold season,
When climate temperature reaches -55 DEG C or less, it is not easy to start using current high-speed bearing rouge low temperature, influences train operation.
Summary of the invention
Presently, there are aiming at the problem that, the present invention from Ji Chu You ﹑ be thickened Ji ﹑ Tian Jia Ji ﹑ grease making process and physical and chemical index etc.
Compare, the work characteristics in conjunction with the high-speed railway double-row conical axle box bearing of 250 km of speed per hour be the speed of service it is high,
Transport range is wide, impact load is high, circumstance of temperature difference is big, sleet washes away, and meets speed per hour 200~250 the present invention provides a kind of
The preparation method of the lubricant composition of the high-speed railway axle box double row tapered roller bearing of km.Select mixing lithium soap as when
The thickening agent of the high-speed railway double-row conical axle box bearing rouge of fast 250 kms, it is thick that the type thickening agent can solve polyureas
The high-temperature stream occurred in agent use process is become estranged the problem of being hardened, by be added compounding base oil and extreme pressure agent, renovation agent and
Antirust agent etc. forms a kind of lubricating grease with property, has excellent extreme pressure and antiwear behavior and protective performance.It can use
In high-speed railway industry, axle box bearing abrasion is reduced, while being able to extend and changing the rouge period.
Technical scheme is as follows:
A kind of high-speed railway axle box double row tapered roller bearing lubricant composition: including base oil, thickening agent and addition
Agent；It is characterized in that: component and weight percent are as follows:
Base oil: its content is 50~83%；
Thickening agent: 8~25%；
Additive: 6~25%；
Wherein:
Base oil is that mass ratio is 1:1 Esters oil and synthetic oil, and 40 DEG C of viscosity are 40~80mm2/ s, pour point are -65
℃；
Thickening agent is made of the reactant of 12- hydroxy stearic acid, tetradecanoic acid, enanthic acid and monohydrate lithium hydroxide, wherein ten
Four alkanoic acids, enanthic acid, 12- hydroxy stearic acid mass ratio be 1:(1.58~2.62): (6.13~15.62)；12 hydroxy stearates
Acid: monohydrate lithium hydroxide=1:1.8.
Additive includes:
(a) sulfoacid calcium, content are 3~8%；
(b) extreme pressure agent, total content are 0.5~5%；
(c) antirust agent, content are 1~5%；
(d) renovation agent, content are 1~5%；
(e) antioxidant, total content are 0.5~2%.
The tetradecanoic acid, enanthic acid, 12 hydroxy stearic acids mass ratio be 1:(1.6~2.6): (6.2~15.6).
The additive preferred proportion are as follows:
(a) sulfoacid calcium, content are 3~8%；
(b) extreme pressure agent, content are 1~3%；
(c) antirust agent, content are 1~3%；
(d) renovation agent, content are 1~3%；
(e) antioxidant, content are 1~2%.
The extreme pressure agent is the mixture of antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum.
The antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum quality proportioning be 1:2:1.
The mixture that the antirust agent is sorbitol monooleate and dinonyl naphthalene sulfonate barium quality proportioning is 2:1.
The renovation agent is nano cupric oxide and nano zine oxide mixture, quality proportioning 1:2.
The antioxidant is the mixture of phenthazine and zinc diamyldithiocarbamate, quality proportioning 1:1.
12 hydroxy stearic acids, enanthic acid and sulfoacid calcium are added in base oil by the preparation method of composition of the invention, are mixed
Conjunction is heated to 60~90 DEG C, and the monohydrate lithium hydroxide containing tetradecanoic acid is added and is saponified compound 1.5~2 hours；With 2~2.5 hours
185~190 DEG C are warming up to, this thermostatic 1~1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall to 120
DEG C hereinafter, sequentially add extreme pressure agent, antirust agent, renovation agent and antioxidant, by three rollers after temperature is reduced to 40~60 DEG C
It is canned after machine pressure oil three times.
After the present invention is introduced directly into sulfoacid calcium due to the stage of reaction, 12- hydroxy stearic acid, enanthic acid can be added with a step, add
After thermosol, the lithium hydroxide solution dissolved with tetradecanoic acid is added, alkali recombination reaction is added by a step, reaches preparation effect.
Lubricity of the invention meets the axle box bearing cold-starting under cryogenic conditions, extreme pressure property and adherency by test
Property, it is good especially by the greasy property under the high-speed cruising operating condition of FE-8 wear test simulation 250 km of speed per hour.
Effect of the invention: lubricating grease of the invention is due to having selected suitable raw material proportioning, so that the lubricating grease has
Good low temperature and water repelling property.The present invention gives full play to the synergistic effect of complex additive, it is made to meet axle box bearing lubrication portion
Position.In addition, preparation of greases method of the present invention is reacted using one-step method direct combination, thus make simple process, energy saving,
Production cost is reduced, and the product quality of technique production is also more stable.The present invention can reduce the mill of axle box bearing
Damage and protective performance, while being able to extend and changing the rouge period.Lubricating efficiency can be improved for the special product of equipment feature exploitation,
Reduce unnecessary loss, it is desired to be able to which specification industry rouge preferably serves high-speed railway industry.
Specific embodiment
Effect of the invention is further illustrated by the following examples.However, it should be understood that the following examples are not limitations
The scope of the present invention, any change without departing from present inventive concept and range, is within the scope of the present invention.
It is in terms of 100% by lubricating grease, component and weight percent are as follows:
Base oil: its content is 50~83%；Base oil is that mass ratio is 1:1 Esters oil and synthetic oil, 40 DEG C of viscosity
For 40~80mm2/ s, pour point are -65 DEG C.
Thickening agent: 8~25%；By the reactant group of 12- hydroxy stearic acid, tetradecanoic acid, enanthic acid and monohydrate lithium hydroxide
At, wherein tetradecanoic acid, enanthic acid, 12- hydroxy stearic acid mass ratio be 1:(1.58~2.62): (6.13~15.62)；12
Hydroxy stearic acid: monohydrate lithium hydroxide=1:1.8；
Additive: 6~25%；It include: (a) total base number 200mgKOH/g sulfoacid calcium, content is 3~8%；(b) extreme pressure agent
With antimony dialkyldithiophosphate, Vanlube829 (production of Vanderbilt company), thiocarbamic acid molybdenum mixture, always
Content is 0.5~5%；(c) antirust agent is the mixture of sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705), content
It is 1~5%；(d) renovation agent is the mixture of nano cupric oxide and nano zine oxide, and content is 1~5%；(e) antioxidant pheno
The mixture of thiazine and zinc diamyldithiocarbamate, total content are 0.5~2%；
Extreme pressure agent is the mixture of antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum.Dialkyl group two
Thiophosphoric acid antimony, Vanlube829, thiocarbamic acid molybdenum mixture preferred mass proportion be 1:2:1.
Renovation agent is the mixture of nano cupric oxide and nano zine oxide, the mixture of nano cupric oxide and nano zine oxide
Preferred mass proportion be 1:2.
Antioxidant is the mixture of phenthazine and zinc diamyldithiocarbamate, and phenthazine and diamyl disulfide are for ammonia
The preferred mass proportion of the mixture of base zinc formate is 1:1.
Antirust agent is the mixture of sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705), sorbital monooleate
The preferred mass proportion of the mixture of ester and dinonyl naphthalene sulfonate barium (T705) is 2:1.
Lubricating grease of the invention mixes the preparation method comprises the following steps: 12 hydroxy stearic acids, enanthic acid and sulfoacid calcium are added in base oil
Conjunction is heated to 60~90 DEG C, and the monohydrate lithium hydroxide containing tetradecanoic acid is added and is saponified compound 1.5~2 hours；With 2~2.5 hours
185~190 DEG C are warming up to, this thermostatic 1~1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall to 120
DEG C hereinafter, sequentially add extreme pressure agent, antirust agent, renovation agent and antioxidant, by three rollers after temperature is reduced to 40~60 DEG C
It is canned after machine pressure oil three times.
Embodiment 1:
Base oil: 73.7%；
Thickening agent: 18.1%；
Additive: 8.2%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 14.1%
Tetradecanoic acid: 1.3%
Enanthic acid: 2.7%
Wherein additive are as follows:
Sulfoacid calcium: 3.8%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum): 1.9%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 1.0%；
Renovation agent (nano cupric oxide and nano zine oxide): 1.0%；
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 0.5%；
By mass fraction be 14.1%12 hydroxy stearic acids, mass fraction is 2.7% enanthic acid and mass fraction is 3.8% sulphur
It is to be mixed and heated to 60~90 DEG C in 73.7% base oil that sour calcium, which is added to mass fraction, and it is 1.3% 14 that mass fraction, which is added,
The monohydrate lithium hydroxide of alkanoic acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1
~1.5 hours；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, sequentially adding extreme pressure agent (dialkyl group
Phosphordithiic acid antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 1.9%, sorbitol monooleate and two nonyls
Base naphthalene sulfonate barium (T705) mass fraction is 1.0% and nano cupric oxide and nano zine oxide mass fraction are 1.0%, phenthazine
It is 0.5% with zinc diamyldithiocarbamate mass fraction, post-process up to required product.Sample number into spectrum A
Embodiment 2:
Base oil: 50%；
Thickening agent: 25%；
Additive: 25%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 20.3%
Tetradecanoic acid: 1.3%
Enanthic acid: 3.4%
Wherein additive are as follows:
Sulfoacid calcium: 8.0%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum): 5.0%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 5.0%；
Renovation agent (nano cupric oxide and nano zine oxide): 5.0%；
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 2.0%.
By mass fraction be 20.3%12 hydroxy stearic acids, mass fraction is 3.4% enanthic acid and mass fraction is 8.0% sulphur
It is to be mixed and heated to 60~90 DEG C, addition mass fraction is 1.3% tetradecane in 50% base oil that sour calcium, which is added to mass fraction,
The monohydrate lithium hydroxide of acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1~
1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, sequentially adding extreme pressure agent (dialkyl group two
Thiophosphoric acid antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 5.0%, sorbitol monooleate and dinonyl
Naphthalene sulfonate barium (T705) mass fraction is 5.0% and nano cupric oxide and nano zine oxide mass fraction are 5.0%, phenthazine and
Zinc diamyldithiocarbamate mass fraction is 2%, post-process up to required product.Sample number into spectrum B.
Embodiment 3:
Base oil: 83%；
Thickening agent: 9%；
Additive: 8%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 6.9%
Tetradecanoic acid: 0.6%
Enanthic acid: 1.5%
Wherein additive are as follows:
Sulfoacid calcium: 3.0%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum): 1.0%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 1.0%；
Renovation agent (nano cupric oxide and nano zine oxide): 1.0%；
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 2.0%.
By mass fraction be 6.9%12 hydroxy stearic acids, mass fraction is 1.5% enanthic acid and mass fraction is 3.0% sulphur
It is to be mixed and heated to 60~90 DEG C, addition mass fraction is 0.6% tetradecane in 83% base oil that sour calcium, which is added to mass fraction,
The monohydrate lithium hydroxide of acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1~
1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, sequentially adding extreme pressure agent (dialkyl group two
Thiophosphoric acid antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 1.0%, sorbitol monooleate and dinonyl
Naphthalene sulfonate barium (T705) mass fraction is 1.0% and nano cupric oxide and nano zine oxide mass fraction are 1.0%, phenthazine and
Zinc diamyldithiocarbamate mass fraction is 2%, post-process up to required product.Sample number into spectrum C.
Embodiment 4:
Base oil: 68%；
Thickening agent: 17.2%；
Additive: 14.8%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 14.1%
Tetradecanoic acid: 1.2%
Enanthic acid: 1.9%
Wherein additive are as follows:
Sulfoacid calcium: 3.8%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum): 3.0%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 3.0%；
Renovation agent (nano cupric oxide and nano zine oxide): 3.0%；
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 2.0%.
By mass fraction be 14.1%12 hydroxy stearic acids, mass fraction is 1.9% enanthic acid and mass fraction is 3.8% sulphur
It is to be mixed and heated to 60~90 DEG C in 68.0% base oil that sour calcium, which is added to mass fraction, and it is 1.2% 14 that mass fraction, which is added,
The monohydrate lithium hydroxide of alkanoic acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1
~1.5 hours；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, extreme pressure agent (dialkyl dithio phosphorus
Sour antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 3.0%, sorbitol monooleate and dinonylnaphthalene sulfonic acid
Barium (T705) mass fraction is 3.0% and nano cupric oxide and nano zine oxide mass fraction are 3.0%, phenthazine and diamyl
Zinc dithiocarbamate mass fraction is 2%, post-process up to required product.Sample number into spectrum D.
Embodiment 5:
Base oil: 74%；
Thickening agent: 20%；
Additive: 6%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 14.1%
Tetradecanoic acid: 2.0%
Enanthic acid: 3.9%
Wherein additive are as follows:
Sulfoacid calcium: 0.5%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum): 2.0%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 1.5%；
Renovation agent (nano cupric oxide and nano zine oxide): 2.0%
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 1.0%.
By mass fraction be 14.1%12 hydroxy stearic acids, mass fraction is 3.9% enanthic acid and mass fraction is 5.5% sulphur
It is to be mixed and heated to 60~90 DEG C, addition mass fraction is 2.0% tetradecane in 68% base oil that sour calcium, which is added to mass fraction,
The monohydrate lithium hydroxide of acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1~
1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, sequentially adding extreme pressure agent (dialkyl group two
Thiophosphoric acid antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 2.0%, sorbitol monooleate and dinonyl
Naphthalene sulfonate barium (T705) mass fraction is 1.5% and nano cupric oxide and nano zine oxide mass fraction are 2.0%, phenthazine and
Zinc diamyldithiocarbamate mass fraction is 1%, post-process up to required product.Sample number into spectrum E.
Embodiment 6:
Base oil: 64.0%；
Thickening agent: 21.6%；
Additive: 14.4%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 14.1%
Tetradecanoic acid: 2.3%
Enanthic acid: 5.2%
Wherein additive are as follows:
Sulfoacid calcium: 7.0%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum mixture): 2.0%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 2.0%；
Renovation agent (nano cupric oxide and nano zine oxide): 2.0%.
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 1.4%.
By mass fraction be 14.1%12 hydroxy stearic acids, mass fraction is 5.2% enanthic acid and mass fraction is 7.0% sulphur
It is to be mixed and heated to 60~90 DEG C, addition mass fraction is 2.3% tetradecane in 64% base oil that sour calcium, which is added to mass fraction,
The monohydrate lithium hydroxide of acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1~
1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, sequentially adding extreme pressure agent (dialkyl group two
Thiophosphoric acid antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 2.0%, sorbitol monooleate and dinonyl
Naphthalene sulfonate barium (T705) mass fraction is 2% and nano cupric oxide and nano zine oxide mass fraction are 2.0%, phenthazine and two
Diamyl disulfide is 1.4% for carbaminate mass fraction, post-process up to required product.Sample number into spectrum F.
Embodiment 7:
Base oil: 62.0%；
Thickening agent: 21.6%；
Additive: 16.4%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 14.1%
Tetradecanoic acid: 2.3%
Enanthic acid: 5.2%
Wherein additive are as follows:
Sulfoacid calcium: 7.0%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum): 3.0%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 3.0%；
Renovation agent (nano cupric oxide and nano zine oxide): 2.0%.
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 1.4%.
By mass fraction be 14.1%12 hydroxy stearic acids, mass fraction is 5.2% enanthic acid and mass fraction is 7.0% sulphur
It is to be mixed and heated to 60~90 DEG C, addition mass fraction is 2.3% tetradecane in 62% base oil that sour calcium, which is added to mass fraction,
The monohydrate lithium hydroxide of acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1~
1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, sequentially adding extreme pressure agent (dialkyl group two
Thiophosphoric acid antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 3.0%, sorbitol monooleate and dinonyl
Naphthalene sulfonate barium (T705) mass fraction is 3% and nano cupric oxide and nano zine oxide mass fraction are 2.0%, phenthazine and two
Diamyl disulfide is 1.4% for carbaminate mass fraction, post-process up to required product.Sample number into spectrum G.
Embodiment 8:
Base oil: 81%；
Thickening agent: 8%；
Additive: 11%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 5.9%
Tetradecanoic acid: 0.6%
Enanthic acid: 1.5%
Wherein additive are as follows:
Sulfoacid calcium: 3.0%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum): 2.0%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 3.0%；
Renovation agent (nano cupric oxide and nano zine oxide): 1.0%；
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 2%.
By mass fraction be 5.9%12 hydroxy stearic acids, mass fraction is 1.5% enanthic acid and mass fraction is 3.0% sulphur
It is to be mixed and heated to 60~90 DEG C, addition mass fraction is 0.6% tetradecane in 81% base oil that sour calcium, which is added to mass fraction,
The monohydrate lithium hydroxide of acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1~
1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, sequentially adding extreme pressure agent (dialkyl group two
Thiophosphoric acid antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 2.0%, sorbitol monooleate and dinonyl
Naphthalene sulfonate barium (T705) mass fraction is 3.0% and nano cupric oxide and nano zine oxide mass fraction are 1.0%, phenthazine and
Zinc diamyldithiocarbamate mass fraction is 2%, post-process up to required product.Sample number into spectrum H.
Embodiment 9:
Base oil: 70.2%；
Thickening agent: 18.1%；
Additive: 11.7%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 14.1%
Tetradecanoic acid: 1.3%
Enanthic acid: 2.7%
Wherein additive are as follows:
Sulfoacid calcium: 3.8%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum): 1.9%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 2.0%；
Renovation agent (nano cupric oxide and nano zine oxide): 3.0%；
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 1.0%
By mass fraction be 14.1%12 hydroxy stearic acids, mass fraction is 2.7% enanthic acid and mass fraction is 3.8% sulphur
It is to be mixed and heated to 60~90 DEG C in 70.2% base oil that sour calcium, which is added to mass fraction, and it is 1.3% 14 that mass fraction, which is added,
The monohydrate lithium hydroxide of alkanoic acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1
~1.5 hours；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, sequentially adding extreme pressure agent (dialkyl group
Phosphordithiic acid antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 1.9%, sorbitol monooleate and two nonyls
Base naphthalene sulfonate barium (T705) mass fraction is 2.0% and nano cupric oxide and nano zine oxide mass fraction are 3.0%, phenthazine
It is 1% with zinc diamyldithiocarbamate mass fraction, post-process up to required product.Sample number into spectrum I
Embodiment 10:
Base oil: 53%；
Thickening agent: 25%；
Additive: 22%；
Quality amounts to: 100%
Wherein thickening agent are as follows:
12- hydroxy stearic acid: 20.3%
Tetradecanoic acid: 1.3%
Enanthic acid: 3.4%
Wherein additive are as follows:
Sulfoacid calcium: 8.0%；
Extreme pressure agent (antimony dialkyldithiophosphate, Vanlube829, thiocarbamic acid molybdenum): 4.0%；
Antirust agent (sorbitol monooleate and dinonyl naphthalene sulfonate barium (T705)): 4.0%；
Renovation agent (nano cupric oxide and nano zine oxide): 4.0%；
Antioxidant (phenthazine and zinc diamyldithiocarbamate): 2.0%.
By mass fraction be 20.3%12 hydroxy stearic acids, mass fraction is 3.4% enanthic acid and mass fraction is 8.0% sulphur
It is to be mixed and heated to 60~90 DEG C, addition mass fraction is 1.3% tetradecane in 53% base oil that sour calcium, which is added to mass fraction,
The monohydrate lithium hydroxide of acid is saponified compound 1.5~2 hours；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1~
1.5 hour；Continue to be warming up to 220~240 DEG C, then Temperature fall is to 120 DEG C hereinafter, sequentially adding extreme pressure agent (dialkyl group two
Thiophosphoric acid antimony, Vanlube829, thiocarbamic acid molybdenum) mass fraction is 4.0%, sorbitol monooleate and dinonyl
Naphthalene sulfonate barium (T705) mass fraction is 4.0% and nano cupric oxide and nano zine oxide mass fraction are 4.0%, phenthazine and
Zinc diamyldithiocarbamate mass fraction is 2%, post-process up to required product.Sample number into spectrum J.
Table 1 analyzes test data comparison
Comparative example *: this is certain product for being currently used in the high-speed railway double-row conical axle box bearing of 250 km of speed per hour
Board lubricating grease
By table 1 it can be concluded that following conclusion:
(1) by low temperature cone penetration and similar viscosity test as can be seen that the testing number of the invention patent Examples 1 to 10
According to, at low ambient temperatures, it can satisfy axle box bearing lubrication lubricating requirement under especially -55 DEG C of low temperature environments, reduce energy consumption, it is bright
It is aobvious better than comparative example lubricating grease low temperature properties；
(2) can be expired by corroding the axle box bearing lubricating grease that can be seen that the invention patent exploitation with anticorrosion test
The protective performance of sufficient axle box bearing,；
(3) the axle box bearing rouge extreme pressure property height that the present invention develops can be seen that by OK value, can satisfy high-speed iron road transport
Greater impact load is resisted when row；
(4) life of product that can be seen that this patent exploitation by oxidation stability experimental test is long, is able to extend axle box
The service life of bearing.
(5) the product mechanical stability that can be seen that this patent exploitation by roller stability and 100,000 shearings is good, knot
Structure is stablized, and high-speed railway requirement of actual working condition is met.
(6) good by the product water repelling property for adding water roller drum experiments to can be seen that this patent exploitation, it meets water and does not emulsify, energy
Enough adapting to trans-regional, climate variability of high-speed railway etc. influences.
(7) by FE-8 experiment as can be seen that the product greasy property of this patent exploitation is prominent, in the mould of speed per hour 250km
The requirement that abrasion loss is less than 35mg in 500 hours can be reached under quasi- operating condition, while smaller than comparative example lubricating grease abrasion loss.
Claims (9)
1. a kind of high-speed railway axle box double row tapered roller bearing lubricant composition: including base oil, thickening agent and additive；
It is characterized in that: component and weight percent are as follows:
Base oil: its content is 50~83%；
Thickening agent: 8~25%；
Additive: 6~25%；
Wherein:
Base oil is that mass ratio is 1:1 Esters oil and synthetic oil, and 40 DEG C of viscosity are 40~80mm2/ s, pour point are -65 DEG C；
Thickening agent is made of the reactant of 12- hydroxy stearic acid, tetradecanoic acid, enanthic acid and monohydrate lithium hydroxide, wherein the tetradecane
Acid, enanthic acid, 12- hydroxy stearic acid mass ratio be 1:(1.58~2.62): (6.13~15.62)；12- hydroxy stearic acid: single
Water lithium hydroxide=1:1.8；
Additive includes:
(a) sulfoacid calcium, content are 3~8%；
(b) extreme pressure agent, total content are 0.5~5%；
(c) antirust agent, content are 1~5%；
(d) renovation agent, content are 1~5%；
(e) antioxidant, total content are 0.5~2%.
2. composition as described in claim 1, it is characterized in that the mass ratio of the tetradecanoic acid, enanthic acid, 12- hydroxy stearic acid
For 1:(1.6~2.6): (6.2~15.6).
3. composition as described in claim 1, it is characterized in that the additives ratio are as follows:
(a) sulfoacid calcium, content are 3~8%；
(b) extreme pressure agent, content are 1~3%；
(c) antirust agent, content are 1~3%；
(d) renovation agent, content are 1~3%；
(e) antioxidant, content are 1~2%.
4. composition as described in claim 1, it is characterized in that extreme pressure agent be antimony dialkyldithiophosphate, Vanlube829,
The mixture of thiocarbamic acid molybdenum.
5. composition as claimed in claim 4, it is characterized in that the antimony dialkyldithiophosphate, Vanlube829, thio
The quality proportioning of carbamic acid molybdenum is 1:2:1.
6. composition as described in claim 1, it is characterized in that antirust agent is sorbitol monooleate and dinonylnaphthalene sulfonic acid
Barium quality proportioning is the mixture of 2:1.
7. composition as described in claim 1, it is characterized in that renovation agent is nano cupric oxide and nano zine oxide mixture,
Quality proportioning is 1:2.
8. composition as described in claim 1, it is characterized in that antioxidant is phenthazine and zinc diamyldithiocarbamate
Mixture, quality proportioning 1:1.
9. the preparation method of composition as described in claim 1, it is characterized in that by 12- hydroxy stearic acid, enanthic acid and sulfoacid calcium
It is added in base oil, is mixed and heated to 60~90 DEG C, the monohydrate lithium hydroxide saponification compound 1.5~2 containing tetradecanoic acid is added
Hour；185~190 DEG C were warming up to 2~2.5 hours, this thermostatic 1~1.5 hour；Continue to be warming up to 220~240 DEG C,
Then Temperature fall is to 120 DEG C hereinafter, sequentially add extreme pressure agent, antirust agent, renovation agent and antioxidant, when temperature is reduced to 40~
It is canned after three-roller pressure oil three times after 60 DEG C.
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| CN201611228508.2A CN106867633B (en) | 2016-12-27 | 2016-12-27 | A kind of high-speed railway axle box double row tapered roller bearing lubricant composition and preparation method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497808A (en) * | 2013-08-29 | 2014-01-08 | 中国石油化工股份有限公司 | Grease composition for automobile wheel hub bearings and its preparation method |
| CN104629882A (en) * | 2015-02-09 | 2015-05-20 | 新乡市恒星化工有限责任公司 | Special lubricating grease for low-speed motor bearing and preparation method of special lubricating grease |
| CN105331426A (en) * | 2015-10-23 | 2016-02-17 | 中国石油化工股份有限公司 | Anti-rust extreme pressure lithium lubricating grease composition and preparation method |
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2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497808A (en) * | 2013-08-29 | 2014-01-08 | 中国石油化工股份有限公司 | Grease composition for automobile wheel hub bearings and its preparation method |
| CN104629882A (en) * | 2015-02-09 | 2015-05-20 | 新乡市恒星化工有限责任公司 | Special lubricating grease for low-speed motor bearing and preparation method of special lubricating grease |
| CN105331426A (en) * | 2015-10-23 | 2016-02-17 | 中国石油化工股份有限公司 | Anti-rust extreme pressure lithium lubricating grease composition and preparation method |
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