CN107603716A - One kind is used for endurance of cutting bearing grease and preparation method - Google Patents
One kind is used for endurance of cutting bearing grease and preparation method Download PDFInfo
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Abstract
One kind of the present invention is used for endurance of cutting bearing grease and preparation method, according to 1:8~1:The polyureas base and lithium base ratio of 10 designs, first methyl diphenylene diisocyanate is added into A reactors and part basis oil is warming up to 50 DEG C, after methyl diphenylene diisocyanate all fusing, two kinds of amine for adding part basis oil fusing are reacted, reaction rises to refining temperature to 90 DEG C after terminating, after constant temperature 1h, remaining base oil and ten whole dihydroxystearic acids are added into B reactors, it is warming up to 80 DEG C, after ten dihydroxy stearic acids all fusing, it is poured into A reactors, simultaneously, the LiOH aqueous solution is added dropwise into A reactors and carries out saponification, time control is in 0.5h.After saponification terminates, 0.1% water is added, is warming up to 185 DEG C.After constant temperature 1h 2h, antioxidant is added, Temperature fall adds other additives and stirred, carries out after rolling oily fine filtering to 85 DEG C, and deaerate finished product.
Description
Technical field
The invention belongs to technical field of lubricating grease, more particularly to the bearing lubrication of a kind of endurance of cutting and roller stability
Fat and preparation method.
Background technology
In recent years, the yield of our sealed bearings is increasing year by year, and its performance requirement is also being improved constantly.Sealed bearings
Quality in addition to itself design, manufacture and material factor, depend greatly on used in lubricating grease performance.It is right
For existing grease product, mainly include lithium soap and the major class product of polyureas two.But with present sealed bearings
Using more and more extensive, the applying working condition of bearing is also more severe.
For lithium base class bearing products, such product is mainly characterized by, fiber softening, is easy to filter, it is easy to full
Foot reduces vibration values requirement.Meanwhile lithium base grease also has good mechanical stability and colloid stability in itself.Therefore,
Such product is used widely.But for the applying working condition of nowadays bearing, to lubricating grease it is also proposed that higher shearing,
The requirement such as water resistant.For example, many high-speed electric expreess locomotives, inclement condition, cause in many bearings lubricating grease due to being acted in high speed shear
Under, can occur grease structure too early and destroy seriously, cause lubricating grease to be lost in, influence its service life.It is from this, single
Lithium base class lubricating grease is difficult to meet its requirement.
In order to improve the performance of lubricating grease, the deficiency in some performances of single soap base grease is made up, therefore develop
Research and production mixed base grease, such as polyureas-lithium base grease.It not only plays the good drop of lithium base grease and shaken effect
Fruit, while mechanical stability, colloid stability and higher dropping point can greatly be improved.
Chinese patent CN101619260A discloses a kind of preparation method of high shear stability lithium grease, the technique
Standing and again cutting operation are employed, overcomes the inhomogenous defect of soap fiber growth in traditional lithium base grease production technology,
Make the length of soap fiber have appropriate ratio, meet that the fibroplastic three-dimensional hole of soap can not only adsorb substantial amounts of base oil, and
And the crystalline fiber structures aligned are formed, reaching product on the basis of good colloid stability is ensured there is prominent height to cut
Cut stability.
Chinese patent CN102585970A discloses a kind of high mechanical stability polyureas base grease and preparation method thereof, should
Mainly polyureas base grease is made as raw material, directly thickening base oil with organic amine using diisocyanate in technique.It is obtained
Product mechanical stability is high, service life length.
Chinese patent CN1600843 reports the preparation method of polyureas-lithium base grease, the technique using organic amine with it is different
After cyanate hybrid reaction, melted with aliphatic acid, add lithium hydroxide aqueous solution and reacted.The method prepares and solves one
Simultaneous reactions generate in kettle, simplify preparation technology, and reached effect same as the prior art.
The raw material that high mechanical stability lubricating grease prepared by above method uses are different, and its property shows as having good
The features such as mechanical stability got well.For under conditions of requiring higher in use, it is difficult to meeting its requirement.Meanwhile above-mentioned system
Preparation Method technique is different, for in bearing, will not also play a part of reducing vibration values.
The content of the invention
It is an object of the invention to provide one kind to meet high mechanical shearing performance, has good water repelling property and anticorrosive property
Can, while there is the bearing grease of long life, solve the problems, such as existing single lithium base bearing PERFORMANCE OF GREASES defect, energy
Enough meet bearing self-lubricating and to the excellent requirement of lubricant water repelling property, playing reduces vibration, anti-shearing, wear-resistant, protection
Effect.
The technology of the present invention is as follows：
One kind is used for endurance of cutting bearing grease composition, based on the total weight percent of composition, including with the following group
Point：
(1) thickening agent 18%-22%；
(2) base oil 78%-82%；
Based on the total weight percent of above-mentioned composition, including following components：
(1) water 0.1%；
(2) additive 2.0%-3.5%.Including：(a) arylamine class and/or phenolic antioxidant 1.0%-1.5%；(b) extreme pressure
It is wear-resistant
Agent 0.5%-1.0%；(c) organic carboxyl acid salt antirust agent 0.5%-1.0%；
Thickening agent is the compounding of polyureas base and lithium base in described composition.
Polyureas base is methyl diphenylene diisocyanate and at least two formation in octadecylamine, cyclohexylamine, octylame, aniline
Diamine polyureas；Lithium base is the lithium 12-hydroxy stearate that lithium hydroxide and ten dihydroxystearic acids are formed；Two kinds of thickening agents are pressed
According to 1:8~1:10 ratio compounding.
Described base oil is at least one of mineral oil or olefin oil (PAO) or Esters oil；Two kinds and two kinds
It can be used in mixed way in any proportion above.
40 DEG C of kinematic viscosity of described composition base oil are preferably 30-40mm2/s。
The Viscosity Index of described composition base oil is not less than 100.
Described composition water is deionized water.
Described composition is that antioxidant is arylamine class alkylated diphenylamine or diphenylamine derivatives or phenolic antioxidant
For the one or two of 2,6- di-t-butyls-p-cresol, two kinds use simultaneously, can mixture in any proportion.
Described composition is one or two of the antiwear additive for tricresyl phosphate or triphenyl phosphate；Two kinds simultaneously
Use, can mixture in any proportion.
Described composition is the one kind of antirust agent for barium mahogany sulfonate or dinonyl naphthalene sulfonate barium.
One kind of the present invention is used for endurance of cutting bearing grease and preparation method, according to 1:8~1:The polyureas of 10 designs
Base and lithium base ratio, first add methyl diphenylene diisocyanate into A reactors and part basis oil is warming up to 50 DEG C, treat two
Methylenebis phenyl isocyanate is all after fusing, and two kinds of amine for adding part basis oil fusing are reacted, and reaction rises after terminating
To refining temperature to 90 DEG C, after constant temperature 1h, remaining base oil and ten whole dihydroxystearic acids are added into B reactors, is risen
Temperature after ten dihydroxy stearic acids all fusing, is poured into A reactors to 80 DEG C, meanwhile, LiOH is added dropwise into A reactors
The aqueous solution carries out saponification, and time control is in 0.5h.After saponification terminates, 0.1% water is added, is warming up to 185 DEG C.After constant temperature 1h-2h,
Antioxidant is added, Temperature fall adds other additives and stirred, carries out after rolling oily fine filtering to 85 DEG C, and deaerate finished product
It is filling.
The lubricating grease of the present invention has the following advantages that：Due to being prepared using special formula, meanwhile, it is suitable to be equipped with
Additive system.The lubricating grease produced using the patent has prominent high shear stability, 100,000 extension work cone penetrations
Rate of change be less than 4%, meanwhile, be added in 6205 bearings, vibration decibel value reach 32 or so.The water resistant of lubricating grease, it is wear-resistant and
Corrosion Protection has to be significantly improved in various degree.This method production equipment is simple, and cost of material is suitable, and technique is easy to stable and controlled
System.
Embodiment
Embodiment 1
The PAO base oils of the methyl diphenylene diisocyanate from 2.9g to A reactors and 270g that add are warming up to 50 DEG C,
After methyl diphenylene diisocyanate all fusing, 270gPAO base oils molten octadecylamine 9.2g and cyclohexylamine 7.9g are added,
Reaction rises to refining temperature to 90 DEG C after terminating, after constant temperature 1h, 280gPAO base oils and 12 are separately added into B reactors
Hydroxy stearic acid 160g, 80 DEG C are warming up to, after ten dihydroxy stearic acids all fusing, are poured into A reactors, meanwhile, to A
Reactor starts that the 22.4g LiOH aqueous solution, control time 0.5h is added dropwise.1g water is added after end, rises to highest refining temperature
Degree is to 185 DEG C.After constant temperature 1h, 5g di-iso-octyldiphenylamines and 5g diphenylamines are added, Temperature fall adds 10g phosphoric acid to 85 DEG C
Triphenylmethyl methacrylate and 10g dinonyl naphthalene sulfonate bariums stir.After three-roller is ground 1 time, fine filtering 2 times, deaerate finished product.
Embodiment 2
The PAO base oils of the methyl diphenylene diisocyanate from 2.9g to A reactors and 260g that add are warming up to 50 DEG C,
After methyl diphenylene diisocyanate all fusing, 260gPAO base oils molten octadecylamine 9.2g and cyclohexylamine 7.9g are added,
Reaction rises to refining temperature to 90 DEG C after terminating, after constant temperature 1h, 280gPAO base oils and 12 are separately added into B reactors
Hydroxy stearic acid 180g, 80 DEG C are warming up to, after ten dihydroxy stearic acids all fusing, are poured into A reactors, meanwhile, to A
Reactor starts that the 25.2g LiOH aqueous solution, control time 0.5h is added dropwise.1g water is added after end, rises to highest refining temperature
Degree is to 185 DEG C.After constant temperature 1h, 5g di-iso-octyldiphenylamine and 10g 2,6- toluene di-tert-butyl phenols, Temperature fall are added
To 85 DEG C, add 10g tricresyl phosphates and 5g barium sulfonates stir.After three-roller is ground 1 time, fine filtering 2 times, followed by
Continuous to grind 1 time, deaerate finished product.
Embodiment 3
The PAO base oils of the methyl diphenylene diisocyanate from 2.9g to A reactors and 250g that add are warming up to 50 DEG C,
After methyl diphenylene diisocyanate all fusing, 250gPAO base oils molten octadecylamine 9.2g and cyclohexylamine 7.9g are added,
Reaction rises to refining temperature to 90 DEG C after terminating, after constant temperature 1h, the fusing of 280gPAO base oils is separately added into B reactors
Ten dihydroxystearic acid 200g, are warming up to 80 DEG C, after ten dihydroxy stearic acids all fusing, are poured into A reactors, together
When, to the A reactors dropwise addition 28g LiOH aqueous solution, control time 0.5h.1g water is added after end, rises to highest refining temperature
Degree is to 185 DEG C.After constant temperature 1h, add 5g di-iso-octyldiphenylamines, Temperature fall to 85 DEG C, add 5g tricresyl phosphates and
10g barium sulfonates stir.After three-roller is ground 1 time, fine filtering 2 times, grinding 1 time is further continued for, deaerate finished product.
Embodiment 4
The PAO base oils of the methyl diphenylene diisocyanate from 2.9g to A reactors and 300g that add are warming up to 50 DEG C,
After methyl diphenylene diisocyanate all fusing, 156gPAO base oils molten octadecylamine 9.2g and cyclohexylamine 7.9g are added,
Reaction rises to refining temperature to 90 DEG C after terminating, after constant temperature 1h, 324g mineral oil and ten dihydroxy are separately added into B reactors
Stearic acid 200g, 80 DEG C are warming up to, after ten dihydroxy stearic acids all fusing, are poured into A reactors, meanwhile, reacted to A
The 28.0g LiOH aqueous solution, control time 0.5h is added dropwise in kettle.1g water is added after end, rises to highest refining temperature to 185
℃.After constant temperature 1h, 10g di-iso-octyldiphenylamines and 5g 2,6- toluene di-tert-butyl phenols are added, Temperature fall is to 85 DEG C, respectively
Add 10g tricresyl phosphates and barium sulfonate stirs.After three-roller is ground 1 time, fine filtering 2 times, grinding 1 is further continued for
Time, deaerate finished product.
Embodiment 5
The PAO base oils of the methyl diphenylene diisocyanate from 2.9g to A reactors and 200g that add are warming up to 50 DEG C,
After methyl diphenylene diisocyanate all fusing, 200gPAO base oils molten octadecylamine 9.2g and cyclohexylamine 7.9g are added,
Reaction rises to refining temperature to 90 DEG C after terminating, after constant temperature 1h, 400g mineral oil and ten dihydroxy are separately added into B reactors
Stearic acid 180g, 80 DEG C are warming up to, after ten dihydroxy stearic acids all fusing, are poured into A reactors, meanwhile, reacted to A
The 25.2g LiOH aqueous solution, control time 0.5h is added dropwise in kettle.1g water is added after end, rises to highest refining temperature to 185
℃.After constant temperature 1h, 10g 2,6- toluene di-tert-butyl phenols are added, Temperature fall is each to add 5g tricresol phosphates to 85 DEG C
Ester, triphenyl phosphate and barium sulfonate stir.After three-roller is ground 1 time, fine filtering 2 times, grinding 1 time, degassing are further continued for
Finished product.
Embodiment 6
The PAO base oils of the methyl diphenylene diisocyanate from 2.9g to A reactors and 251g that add are warming up to 50 DEG C,
After methyl diphenylene diisocyanate all fusing, 200gPAO base oils molten octadecylamine 9.2g and cyclohexylamine 7.9g are added,
Reaction rises to refining temperature to 90 DEG C after terminating, and constant temperature 1h, 369gPAO base oils and ten dihydroxies is separately added into B reactors
Base stearic acid 160g, is warming up to 80 DEG C, after ten dihydroxy stearic acids all fusing, is poured into A reactors, meanwhile, it is anti-to A
Answer kettle that the 22.4g LiOH aqueous solution, control time 0.5h is added dropwise.1g water is added after end, rises to highest refining temperature to 185
℃.After constant temperature 1h, each di-iso-octyldiphenylamine and 2,6- toluene di-tert-butyl phenol for adding 5g, Temperature fall adds to 85 DEG C
Enter 5g triphenyl phosphates and 10g dinonyl naphthalene sulfonate bariums stir.After three-roller is ground 1 time, fine filtering 2 times, it is further continued for
Grinding 1 time, deaerate finished product.
Embodiment 1-6 constituent contents are shown in Table 1.
The embodiment 1-6 constituent contents (percentage) of table 1
Embodiment 1-6 performance datas are shown in Table 2, and wherein comparative example is certain external brand lithium base grease.
The embodiment 1-6 of table 2 and comparative example performance data
As can be seen from Table 2, high mechanical stability bearing grease of the invention is compared with single lithium base grease, not only
Meet the requirement of its bearing low noise properties.Meanwhile the lubricating grease has excellent anti-shear performance, water repelling property, extreme-pressure anti-wear
Performance and good Corrosion Protection, ensure that bearing can be in normal work at a high speed, under shear conditions.
The lab work of present embodiment example is the Common item for the lubricating grease chemically examined, to ensure that lubricating grease has
Versatility possessed by general lubricating grease.
It can be drawn the following conclusions from above case：(1) lubricating grease of invention has excellent mechanical stability energy,
It can be very good to meet working condition requirement of the client to bearing high speed high shear；(2) lubricating grease of invention has well
Water repelling property, bearing can be ensured containing normal work under water condition.(3) lubricating grease of invention has well wear-resistant
Performance；The fretting wear of lubricant housings can effectively be reduced；(4) lubricating grease of invention has good anticorrosive property
Can, it disclosure satisfy that work of the bearing in the environment of it there may be moisture.
In summary performance, base oil and thickening in the high mechanical stability bearing grease formula of this patent are fully demonstrated
Agent reasonably matches, the reasonability of the selection of additive and lubricating grease preparation method.In summary performance, this is fully demonstrated
In patent lubricating grease formula base oil and thickening agent reasonably match, the selection of additive and lubricating grease preparation method it is reasonable
Property.
A kind of high mechanical stability bearing grease composition proposed by the present invention and preparation method, by preferable
Examples of implementation are described, person skilled substantially can not depart from present invention, in spirit and scope to this paper institutes
The component and method stated are modified or suitably changed with combining, to realize the technology of the present invention.In particular, own
Similar replacement and change is apparent to those skilled in the art, and they are considered as being included in essence of the invention
In god, scope and content.
Claims (10)
1. one kind is used for endurance of cutting bearing grease composition, based on the total weight percent of composition, including following components：
(1) thickening agent 18%-22%；
(2) base oil 78%-82%；
Based on the total weight percent of above-mentioned composition, including following components：
(1) water 0.1%；
(2) additive 2.0%-3.5%.
2. composition according to claim 1, the thickening agent described in it is the compounding of polyureas base and lithium base；Polyureas base is two
The diamine polyureas that methylenebis phenyl isocyanate is formed with least two in octadecylamine, cyclohexylamine, octylame, aniline；Lithium base is
The lithium 12-hydroxy stearate that lithium hydroxide and ten dihydroxystearic acids are formed；Two kinds of thickening agents are according to 1:8~1:10 ratio
Compounding.
3. composition according to claim 1, it is characterised in that described base oil is mineral oil or olefin oil
Or at least one of Esters oil (PAO)；Two kinds and two or more it can be used in mixed way in any proportion.
4. 40 DEG C of kinematic viscosity of composition according to claim 1, preferably base oil are 30-40mm2/ s, base oil
Viscosity Index is not less than 100.
5. according to the composition described in claim 1, it is characterised in that described water, preferably deionized water.
6. according to the lubricant composition described in claim 1, it is characterised in that described additive, according to the gross weight of composition
Gauge, including following components：Arylamine class and/or phenolic antioxidant 1.0%-1.5%；(b) extreme pressure anti-wear additives 0.5%-1.0%；
(c) organic carboxyl acid salt antirust agent 0.5%-1.0%.
7. according to the composition described in claim 6, it is characterised in that described antioxidant be arylamine class alkylated diphenylamine or
Diphenylamine derivatives or phenolic antioxidant are the one or two of 2,6- di-t-butyls-p-cresol, and two kinds use simultaneously, by times
Meaning ratio mixture.
8. according to the composition described in claim 6, it is characterised in that described extreme pressure anti-wear additives are tricresyl phosphate or phosphorus
The one or two of triphenyl phosphate ester；Two kinds use simultaneously, in any proportion mixture.
9. composition according to claim 6, it is characterised in that described antirust agent is barium mahogany sulfonate or dinonyl naphthalene
One kind of barium sulfonate.
10. the preparation method of the lubricant composition described in claim 1, it is characterized in that：According to 1:8~1:The polyureas of 10 designs
Base and lithium base ratio, first add methyl diphenylene diisocyanate into A reactors and part basis oil is warming up to 50 DEG C, treat two
Methylenebis phenyl isocyanate is all after fusing, and two kinds of amine for adding part basis oil fusing are reacted, and reaction rises after terminating
To refining temperature to 90 DEG C, after constant temperature 1h, remaining base oil and ten whole dihydroxystearic acids are added into B reactors, is risen
Temperature after ten dihydroxy stearic acids all fusing, is poured into A reactors to 80 DEG C, meanwhile, LiOH is added dropwise into A reactors
The aqueous solution carries out saponification, and time control is in 0.5h.After saponification terminates, 0.1% water is added, is warming up to 185 DEG C.After constant temperature 1h-2h,
Antioxidant is added, Temperature fall adds other additives and stirred, carries out after rolling oily fine filtering to 85 DEG C, and deaerate finished product
It is filling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710736437.5A CN107603716A (en) | 2017-08-24 | 2017-08-24 | One kind is used for endurance of cutting bearing grease and preparation method |
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| CN201710736437.5A CN107603716A (en) | 2017-08-24 | 2017-08-24 | One kind is used for endurance of cutting bearing grease and preparation method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439421A (en) * | 2018-12-05 | 2019-03-08 | 安徽中天石化股份有限公司 | A kind of heavy load bearing grease and preparation method thereof |
| CN110616103A (en) * | 2019-07-16 | 2019-12-27 | 一汽解放汽车有限公司 | Commercial vehicle wheel hub bearing lubricating grease and preparation method thereof |
| CN113717772A (en) * | 2020-05-20 | 2021-11-30 | 吉林省运捷轨道科技开发有限公司 | Composite lithium-based lubricating grease for rail lubrication and preparation method and application thereof |
| CN114350430A (en) * | 2022-03-21 | 2022-04-15 | 泰奥星（天津）有限公司 | Lubricating grease, preparation method and application thereof |
| CN115651736A (en) * | 2022-10-24 | 2023-01-31 | 东莞市欧迪斯润滑剂科技有限公司 | Composite soap-based lubricating grease for high-temperature demolding and preparation process thereof |
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| CN1600843A (en) * | 2003-09-28 | 2005-03-30 | 中国石油化工股份有限公司 | Method for fabricating polyurea lithium based lubricating grease |
| CN104164287A (en) * | 2014-08-05 | 2014-11-26 | 中国石油化工股份有限公司 | Ultralow-temperature bearing lubricating grease composition and preparation method thereof |
| CN105199817A (en) * | 2015-10-23 | 2015-12-30 | 中国石油化工股份有限公司 | Low-temperature lithium-calcium bearing lubricating grease and preparation method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1600843A (en) * | 2003-09-28 | 2005-03-30 | 中国石油化工股份有限公司 | Method for fabricating polyurea lithium based lubricating grease |
| CN104164287A (en) * | 2014-08-05 | 2014-11-26 | 中国石油化工股份有限公司 | Ultralow-temperature bearing lubricating grease composition and preparation method thereof |
| CN105199817A (en) * | 2015-10-23 | 2015-12-30 | 中国石油化工股份有限公司 | Low-temperature lithium-calcium bearing lubricating grease and preparation method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439421A (en) * | 2018-12-05 | 2019-03-08 | 安徽中天石化股份有限公司 | A kind of heavy load bearing grease and preparation method thereof |
| CN110616103A (en) * | 2019-07-16 | 2019-12-27 | 一汽解放汽车有限公司 | Commercial vehicle wheel hub bearing lubricating grease and preparation method thereof |
| CN110616103B (en) * | 2019-07-16 | 2023-03-28 | 一汽解放汽车有限公司 | Commercial vehicle wheel hub bearing lubricating grease and preparation method thereof |
| CN113717772A (en) * | 2020-05-20 | 2021-11-30 | 吉林省运捷轨道科技开发有限公司 | Composite lithium-based lubricating grease for rail lubrication and preparation method and application thereof |
| CN114350430A (en) * | 2022-03-21 | 2022-04-15 | 泰奥星（天津）有限公司 | Lubricating grease, preparation method and application thereof |
| CN115651736A (en) * | 2022-10-24 | 2023-01-31 | 东莞市欧迪斯润滑剂科技有限公司 | Composite soap-based lubricating grease for high-temperature demolding and preparation process thereof |
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Application publication date: 20180119 |