CN104450117A - Lubricating grease composition for water pump bearing of automobile and preparation method thereof - Google Patents
Lubricating grease composition for water pump bearing of automobile and preparation method thereof Download PDFInfo
- Publication number
- CN104450117A CN104450117A CN201410576277.9A CN201410576277A CN104450117A CN 104450117 A CN104450117 A CN 104450117A CN 201410576277 A CN201410576277 A CN 201410576277A CN 104450117 A CN104450117 A CN 104450117A
- Authority
- CN
- China
- Prior art keywords
- lubricating grease
- acid
- composition
- oil
- base 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
Abstract
The invention provides a lubricating grease composition for a water pump bearing of an automobile and a preparation method thereof. The lubricating grease composition is prepared from the following components in percentage by weight: (1) 5-18% of a thickening agent which is compound lithium soap; (2) 75-90% of base oil; and (3) 2-7% of an additive which comprises (a) 1-2.5% of an amine antioxidant; (b) 1-3% of an organic sulfide and/or organic phosphide antiwear agent; and (c) 0.5-2% of a triazole and/or tetrahydroglyoxaline antirust agent. The lubricating grease produced by the composition has a relatively high dropping point and good mechanical stability, thereby facilitating use of the lubricating grease under a high-temperature environment while ensuring non-drainage so as to play a good sealing effect. The composition has good wear-resisting and carrying capacities. Through an experiment on a four-ball method wear tester, the maximum non-seizure load PB and the sintering load PD are relatively high, and wear of the lubricated part can be effectively reduced. Meanwhile, the service life of the bearing is long-acting. The composition is suitable for being used on the water pump bearing of the automobile.
Description
Technical field
The invention belongs to technical field of lubricating grease, particularly relate to a kind of auto pump bearing grease composition and preparation method thereof.
Background technology
Lubricating grease belongs to the category of lubricant, be made up of many different componentss, each component all gives lubricating grease with different characteristics, and the ratio of each component and manufacturing process to the performance of lubricating grease particularly outward appearance tool have a direct impact, existing lubricating grease mostly is the even ointment of tawny.
Automobile engine water pump bearing a kind ofly forms integrated special bearing unit by axle and inner ring, because the rotating speed of water pump is higher, general pump rotary speed reaches 6000r/min, high-revolving pump rotary speed is up to 9000r/min, therefore require that bearing has higher supporting capacity, water pump could be met like this under certain rotating speed to the requirement in life-span.The locus of water pump is restricted, and area of dissipation is little, and working conditions is severe, and therefore bearing still can keep the requirement of normal operation under should be able to meeting high temperature, does not reduce the supporting capacity of bearing simultaneously.
Auto pump bearing is as special bearing unit, and its applied environment is high temperature, high humidity and high containing dust pollution, has special service requirements to lubricating grease.20 century 70s, the many employings of first-generation auto pump bearing grease are using lithium stearate as the lithium soap grease of viscosifying agent.In the later stage eighties, along with the develop rapidly of automotive industry, lithium soap grease cannot meet service requirements, and complex soap lubricating grease starts to be applied more widely.Patent CN102140382B describes a kind of hub bearing lubricating grease and preparation method thereof, this lubricating grease adopts compound lithium soap to be viscosifying agent, and it is higher that composition has dropping point, and resistance to abrasion and anti-extreme pressure can be good, the advantages such as high temperature performance is good, have excellent waterproof and rustless property simultaneously; Be suitable for the lubrication of the automobile hub bearing of comparatively harsh operating mode, do not introduce antioxidant property and the bearing life of lubricating grease.JP2012233024 (A) describes a kind of grease composition being applied to sealing bearing, and this lubricating grease has lower frictional coefficient and lower viscosity, and can bear higher working temperature.This lubricating grease has the good quiet life-span simultaneously.Do not introduce the supporting capacity of this lubricating grease.The bibliographical information performance of different grease composition in high-speed bearing, analyzes different viscosifying agent, base oil and viscosity thereof and oxidation inhibitor to Grease's lifetime, the impact of oil film thickness and bearing temperature.Do not introduce relevant preparation of greases method.
The lubricating grease kind that domestic market is applied to bearing is more, there is a kind of grease applications in the situation of conglomerate bearing, does not find the lubricating grease being specifically applied to auto pump bearing, also rare Patents and report.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of composition being applicable to the complex lithium grease of auto pump bearing is newly provided.There is provided a kind of and there is good high-temperature stability, higher supporting capacity, good stopping property, there is the auto pump bearing grease composition of long life simultaneously, the present invention is by selecting suitable base oil, additive and special aftertreatment technology, ensure that this class lubricating grease can meet the requirement of auto pump bearing to lubricating grease, play lubrication, protection, ensure the effect in bearing work-ing life.
Technology of the present invention is as follows:
A kind of auto pump bearing grease composition, by the total weight percent of composition, comprises following component:
(1) viscosifying agent 5-18% is compound lithium soap;
(2) base oil 75-90%;
(3) additive 2-7%; Comprise: (a) fragrant amine antioxidants 1-2.5%; (b) organic sulfide and/or organophosphorus
Compound anti-wear agent 1-3% (c) triazole and/or imidazolines rust-preventive agent 0.5-2%;
Described viscosifying agent is compound lithium soap, and in compound lithium soap, organic acid is ten dihydroxystearic acids, sebacic acid, nonane diacid, boric acid, phenylformic acid, Whitfield's ointment.In viscosifying agent system, various acid composite should meet the system requirement that at least one in ten dihydroxystearic acids and diprotic acid and at least one in low molecular acid form three kinds and more than three kinds.In viscosifying agent system, ten dihydroxystearic acids, diprotic acid and low molecular acid can be composite in any proportion.In this patent, sebacic acid, nonane diacid are called diprotic acid; Boric acid, phenylformic acid, Whitfield's ointment are called low molecular acid.
The base oil of described composition is at least one in mineral oil or olefin oil (PAO) or Esters oil.
Esters oil in the base oil of described composition is that trihydroxymethylpropanyl ester class oil or pentaerythritol esters are oily.
Described composition is that fragrant amine antioxidants is one or both of alkylated diphenylamine or N-phenyl-a-naphthylamine.
Described composition is one or both of organic sulfide or Organophosphorous compounds anti-wear agent.
Composition of the present invention is that rust-preventive agent is one or both of benzotriazole or tetrahydroglyoxaline, and two kinds use can mixture in any proportion simultaneously.
Preparation method and the step of composition of the present invention are as follows:
Auto pump bearing grease composition preparation method of the present invention, first add in the reactor 40% ~ 50% and 12-oxystearic acid of base oil total amount, stir and be warming up to 85 ~ 90 DEG C, add 50% lithium hydroxide alkali lye, reaction 1 ~ 1.5h, control temperature is within the scope of 90 ~ 100 DEG C; After one step alkali reaction, 90 ~ 100 DEG C add at least one in diprotic acid and at least one in low molecular acid, then react 1 ~ 1.5h, and then reactor adds remaining lithium hydroxide alkali lye, intensification draining, in 2h, temperature is risen to 200 ~ 220 DEG C, after adding 20-25% base oil chilling, add oxidation inhibitor immediately, 95 ~ 110 DEG C add anti-wear agent, rust-preventive agent, residue base oil is as rear tune oil, and cooling, rolls oil and become fat.
The preparation method of grease composition of the present invention, is the base oil (40%-50%) first added, should comprise ester class base oil, contains Esters oil, should add in follow-up adding in the step of base oil in always filling a prescription.
Lubricating grease result of performance test of the present invention shows to have following advantage: the viscosifying agent system of (1) at least three components, lubricating grease is made to have higher dropping point, good mechanical stability, be conducive to while lubricating grease uses in high temperature environments, ensure that it does not run off and playing good sealing function; (2) owing to adding preferred wear reducing additive, described composition has good wear-resistant and supporting capacity, finds, its last non seizure load P by carrying out experiment on four ball wear testing machines
bwith sintering load P
dall higher, effectively can reduce the wearing and tearing at lubricated position.(3) owing to adding preferred amine antioxidants, this lubricating grease has longer oxidation induction period, has long-acting bearing work-ing life simultaneously.
Composition high-temperature stability of the present invention utilizes pressure difference scanning calorimeter instrument (German NETZSCH), according to ASTMD5483 standard method, tests.The supporting capacity of lubricating grease utilizes four-ball tester, tests according to ASTM D2596 standard method.The sealing property of lubricating grease is tested according to automotive wheels bearing grease wastage assay method SH/T 0326.The bearing life of lubricating grease is tested according to high temperature ball ball bearing life characteristic assay method ASTM D3336.All the other conventional performance index of lubricating grease are all tested according to national standard or petrochemical industry standard.
Embodiment
Below by specific embodiment, the present invention is further elaborated.
Embodiment 1-6 and comparative example preparation method:
First 40% ~ 50% of designated ratio base oil total amount is added in the reactor, this part basis oil should not comprise synthetic ester lubricant, lipid oil is contained in always filling a prescription, should add in subsequent step, add 12-oxystearic acid again, stir and be warming up to 85 ~ 90 DEG C, add 50% lithium hydroxide alkali lye, reaction 1 ~ 1.5h, control temperature is within the scope of 90 ~ 100 DEG C; After one step alkali reaction, 90 ~ 100 DEG C add at least one in diprotic acid and at least one in low molecular acid, then react 1 ~ 1.5h, and then reactor adds remaining lithium hydroxide alkali lye, intensification draining, in 2h, temperature is risen to 200 ~ 220 DEG C, after adding 20-25% base oil chilling, add oxidation inhibitor immediately, 95 ~ 110 DEG C add anti-wear agent, rust-preventive agent, residue base oil is oily as rear tune, cooling, and after fully stirring, on three-roller, grinding is even.
Embodiment 1-6 and comparative example prepare according to above-mentioned preparation method, and each component concentration and performance are in table 1:
The performance data of embodiment 1-6 and comparative example is in table 2:
Although be the example of a point listed by each embodiment following, be to reach same effect to the scope described in each claim, be not tightly limited to this condition.
Table 1 embodiment 1-6 and comparative example component concentration (per-cent)
Embodiment 1-6 performance data is in table 2.
Table 2 embodiment 1-6 and comparative example performance data
As can be seen from table 2 and table 3, water pump bearing grease base oil of the present invention has higher dropping point and longer oxidation induction period, ensures that lubricating grease has good resistance toheat; This grease composition has higher sintering load and maximum nothing card load, respectively at 2452N-3089N and 441N-549N; The bearing wastage of this grease composition is between 0.80-0.99g, and lubricating grease wastage is less, extends Drawing cone in-degree simultaneously and changes little compared with Drawing cone in-degree, can ensure lubricating grease sealing function within the bearing; When 160 DEG C, lubricating grease has longer bearing work-ing life, is not less than 410h from embodiment.
The Common item of the lab work of the present embodiment example just lubricating grease of chemical examination, to ensure the versatility that lubricating grease has general lubricating grease and has.
Can draw the following conclusions from above case: the grease dropping point of (1) invention is high, and oxidation induction period is long, the requirement of water pump bearing to resistance toheat can be met; (2) lubricating grease of invention has good extreme pressure and antiwear behavior; When compared with high-bearing capacity, effectively can reduce the frictional wear of lubricant housings.(3) lubricating grease of invention has good sealing property, can meet the job requirement of bearing under possible high humidity high thermal environment.(4) lubricating grease of invention has long-acting bearing life, can ensure bearing long time continuous working.Patent of the present invention, the lubricating grease introduced has taken into full account the requirement of auto pump bearing to lubricating grease, and by the checking to designed formula and manufacturing process, product performance index can meet the requirement of auto pump bearing to lubricating grease.Comprehensive above performance, base oil and viscosifying agent reasonably mates, the reasonableness of the selection of additive and lubricating grease preparation method in the auto pump bearing grease formula that sufficient proof this patent is introduced.
A kind of water pump bearing grease composition that the present invention proposes and preparation method, be described by preferred embodiment, person skilled obviously can not depart from content of the present invention, spirit and scope component as herein described and method are changed or suitably change with combination, realize the technology of the present invention.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are deemed to be included in spirit of the present invention, scope and content.
Claims (10)
1. an auto pump bearing grease composition, by the total weight percent of composition, comprises following component:
(1) viscosifying agent 5-18%;
(2) base oil 75-90%;
(3) additive 2-7%; Comprise: (a) fragrant amine antioxidants 1-2.5%; (b) organic sulfide and/or Organophosphorous compounds anti-wear agent 1-3% (c) triazole and/or imidazolines rust-preventive agent 0.5-2%.
2. composition according to claim 1, the viscosifying agent described in it is the resultant that organic acid and lithium hydroxide react.
3. composition according to claim 1, described viscosifying agent is compound lithium soap, and in compound lithium soap, organic acid is ten dihydroxystearic acids, sebacic acid, nonane diacid, boric acid, phenylformic acid, Whitfield's ointment; In viscosifying agent system, various acid composite should meet the system requirement that at least one in ten dihydroxystearic acids and diprotic acid and at least one in low molecular acid form three kinds and more than three kinds.
4., according to grease composition according to claim 1, it is characterized in that the base oil of described composition is at least one in mineral oil or olefin oil (PAO) or Esters oil.
5., according to grease composition according to claim 1, it is characterized in that the Esters oil in the base oil of described composition is that trihydroxymethylpropanyl ester class oil or pentaerythritol esters are oily.
6., according to grease composition according to claim 1, it is characterized in that fragrant amine antioxidants in described composition is one or both of alkylated diphenylamine or N-phenyl-a-naphthylamine.
7., according to grease composition according to claim 1, it is characterized in that one or both of organic sulfide or Organophosphorous compounds anti-wear agent.
8. composition according to claim 1, is characterized in that described rust-preventive agent is one or both of benzotriazole or tetrahydroglyoxaline.
9. lubricating grease preparation method according to claim 1, it is characterized in that 40% ~ 50% and the 12-oxystearic acid that add base oil total amount first in the reactor, stir and be warming up to 85 ~ 90 DEG C, add 50% lithium hydroxide alkali lye, reaction 1 ~ 1.5h, control temperature is 90 ~ 100 DEG C of scopes; After one step alkali reaction, 90 ~ 100 DEG C add at least one in diprotic acid and at least one in low molecular acid, then react 1 ~ 1.5h, and then reactor adds remaining lithium hydroxide alkali lye, intensification draining, in 2h, temperature is risen to 200 ~ 220 DEG C, after adding 20-25% base oil chilling, add oxidation inhibitor, 95 ~ 110 DEG C add anti-wear agent, rust-preventive agent, residue base oil, cooling, rolls oil and becomes fat.
10. according to the preparation method of grease composition according to claim 9, it is characterized in that 40% ~ 50% base oil first added, do not comprise ester class base oil, in always filling a prescription, contain Esters oil, should add in subsequent step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410576277.9A CN104450117A (en) | 2014-10-25 | 2014-10-25 | Lubricating grease composition for water pump bearing of automobile and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410576277.9A CN104450117A (en) | 2014-10-25 | 2014-10-25 | Lubricating grease composition for water pump bearing of automobile and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104450117A true CN104450117A (en) | 2015-03-25 |
Family
ID=52896876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410576277.9A Pending CN104450117A (en) | 2014-10-25 | 2014-10-25 | Lubricating grease composition for water pump bearing of automobile and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104450117A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296109A (en) * | 2015-10-29 | 2016-02-03 | 山东万友工业油脂有限公司 | Long-service-life high-temperature lubricating grease and preparation method thereof |
| CN106190475A (en) * | 2016-07-13 | 2016-12-07 | 中国石化集团胜利石油管理局胜大油品厂 | Plunger type water injection pump special lube |
| CN106190508A (en) * | 2016-06-29 | 2016-12-07 | 安徽中天石化股份有限公司 | A kind of Hmp grease and preparation method thereof |
| CN111892972A (en) * | 2020-07-31 | 2020-11-06 | 东莞太平洋博高润滑油有限公司 | Petrochemical first-class extreme pressure composite lithium-based lubricating grease and preparation method thereof |
| CN111909765A (en) * | 2020-09-03 | 2020-11-10 | 无锡市润尔石化有限公司 | Novel antirust lubricating grease and preparation method thereof |
| CN112522007A (en) * | 2019-09-17 | 2021-03-19 | 中国石油化工股份有限公司 | Heavy-carrier pneumatic valve actuator lubricating grease composition and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200670A (en) * | 2006-12-12 | 2008-06-18 | 中国石油天然气集团公司 | Composite lithium-base grease and method for making same |
| CN101838580A (en) * | 2010-05-18 | 2010-09-22 | 中山大学 | Compound lithium base grease composite and preparation method thereof |
| CN101955835A (en) * | 2010-10-13 | 2011-01-26 | 中国石油化工股份有限公司 | Composition of four-component lithium complex grease and preparation method thereof |
| CN102977978A (en) * | 2012-11-27 | 2013-03-20 | 无锡意格尔润滑科技股份有限公司 | Bearing lubricating grease and preparation method thereof |
| CN103450978A (en) * | 2013-09-05 | 2013-12-18 | 江苏龙蟠石化有限公司 | Lubricating grease for hub bearing of heavy load truck and preparation method thereof |
| JP2014122282A (en) * | 2012-12-21 | 2014-07-03 | Showa Shell Sekiyu Kk | Grease composition |
-
2014
- 2014-10-25 CN CN201410576277.9A patent/CN104450117A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200670A (en) * | 2006-12-12 | 2008-06-18 | 中国石油天然气集团公司 | Composite lithium-base grease and method for making same |
| CN101838580A (en) * | 2010-05-18 | 2010-09-22 | 中山大学 | Compound lithium base grease composite and preparation method thereof |
| CN101955835A (en) * | 2010-10-13 | 2011-01-26 | 中国石油化工股份有限公司 | Composition of four-component lithium complex grease and preparation method thereof |
| CN102977978A (en) * | 2012-11-27 | 2013-03-20 | 无锡意格尔润滑科技股份有限公司 | Bearing lubricating grease and preparation method thereof |
| JP2014122282A (en) * | 2012-12-21 | 2014-07-03 | Showa Shell Sekiyu Kk | Grease composition |
| CN103450978A (en) * | 2013-09-05 | 2013-12-18 | 江苏龙蟠石化有限公司 | Lubricating grease for hub bearing of heavy load truck and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296109A (en) * | 2015-10-29 | 2016-02-03 | 山东万友工业油脂有限公司 | Long-service-life high-temperature lubricating grease and preparation method thereof |
| CN105296109B (en) * | 2015-10-29 | 2018-07-27 | 山东万友工业油脂有限公司 | A kind of long-life high temperature lubricating grease and preparation method thereof |
| CN106190508A (en) * | 2016-06-29 | 2016-12-07 | 安徽中天石化股份有限公司 | A kind of Hmp grease and preparation method thereof |
| CN106190475A (en) * | 2016-07-13 | 2016-12-07 | 中国石化集团胜利石油管理局胜大油品厂 | Plunger type water injection pump special lube |
| CN106190475B (en) * | 2016-07-13 | 2019-02-22 | 中国石化集团胜利石油管理局胜大油品厂 | Plunger type water injection pump special lube |
| CN112522007A (en) * | 2019-09-17 | 2021-03-19 | 中国石油化工股份有限公司 | Heavy-carrier pneumatic valve actuator lubricating grease composition and preparation method thereof |
| CN111892972A (en) * | 2020-07-31 | 2020-11-06 | 东莞太平洋博高润滑油有限公司 | Petrochemical first-class extreme pressure composite lithium-based lubricating grease and preparation method thereof |
| CN111909765A (en) * | 2020-09-03 | 2020-11-10 | 无锡市润尔石化有限公司 | Novel antirust lubricating grease and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105176638B (en) | Chain greasisng oil complexing agent and preparation method thereof | |
| CN104450117A (en) | Lubricating grease composition for water pump bearing of automobile and preparation method thereof | |
| CN101200670B (en) | Composite lithium-base grease and method for making same | |
| JP4883920B2 (en) | Grease composition and bearing | |
| CN102977978B (en) | Bearing lubricating grease and preparation method thereof | |
| JP5646859B2 (en) | Lubricating oil composition for continuously variable transmission | |
| TWI481704B (en) | Grease composition and a linear mobile device using the grease composition | |
| CN105385481A (en) | Antioxidant system extreme pressure anti-wear self-repairing lubricating oil additive and preparation method thereof | |
| CN104371796A (en) | Low-temperature lubricating grease composition and preparation method thereof | |
| CN102690703A (en) | Extreme-pressure long-life industrial lubricant composition | |
| CN105838485B (en) | Lubricant composition and preparation method thereof | |
| EP2913385B1 (en) | Grease composition | |
| EP2264132B1 (en) | Grease composition and bearings | |
| CN104870620A (en) | Grease composition | |
| CN103497814B (en) | Lubricating grease specially used in high-temperature kiln car, and preparation method thereof | |
| CN102888271A (en) | Rolling bearing lubricating grease composition and preparation method thereof | |
| JPH093468A (en) | Lubricating oil composition and lubricating grease composition | |
| CN104164287A (en) | Ultralow-temperature bearing lubricating grease composition and preparation method thereof | |
| CN108998147A (en) | A kind of 12- hydroxy stearic acid, boric acid complex lithium prefabricated soap lubricant composition and preparation method thereof | |
| KR20130118936A (en) | Grease composition | |
| CN110283645B (en) | Locomotive gear oil composition | |
| JP4473569B2 (en) | Lubricant composition for sewing machine | |
| KR20130073977A (en) | Grease composition | |
| CN107090332A (en) | A kind of specialty administers automobile burn oil, the reparation Antifrictional lubricating oil of few machine oil | |
| CN103484202A (en) | Wear-resistant lithium-based lubricating grease composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |