CN108865350A - A kind of exposed gear quasi-hydrodynamic lubrication oil/fat composition - Google Patents
A kind of exposed gear quasi-hydrodynamic lubrication oil/fat composition Download PDFInfo
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- CN108865350A CN108865350A CN201810639773.2A CN201810639773A CN108865350A CN 108865350 A CN108865350 A CN 108865350A CN 201810639773 A CN201810639773 A CN 201810639773A CN 108865350 A CN108865350 A CN 108865350A
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- Prior art keywords
- oil
- wear
- quasi
- fat composition
- extreme
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/042—Mixtures of base-materials and additives the additives being compounds of unknown or incompletely defined constitution only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
Abstract
The present invention relates to a kind of exposed gear quasi-hydrodynamic lubrication oil/fat composition, sundries in open type gear driving can be met and easily invaded, insufficient lubrication, low speed rotation, the gear teeth, which are prone to wear, waits complex working conditions.Composition of the invention also uses specific composite multi-functional antioxygen antiwear additive in addition to base oil, and compounds suitable extreme pressure, antiwear additive, thickening agent, viscosity index improver etc., gives full play to the synergistic effect between additive.The lubricant composition has leak resistance outstanding, low temperature fluidity, good extreme pressure anti-wear, anti-caking power, anti-oxidative stability, certain anti-rust and corrosionproperties, water resistance, to meet the lubrication needs that the industries exposed gear such as cement, coal uses in particular circumstances.
Description
Technical field
The present invention relates to the exposed gears used under a kind of lubricant composition more particularly to a kind of special operation condition and environment
Quasi-hydrodynamic lubrication oil/fat composition.
Technical background
Heavy exposed gear is the kind of drive common in raw material processing industry, be widely used in electric power, mine, cement,
The large scale equipment of the industries such as steel, chemical industry, papermaking, such as：Ball mill, tube mill, rod mill, rotary kiln, drying machine, pelletizer,
Drum type pulp kneader etc..It is mainly characterized by：Heavy duty, low speed, structure size is larger and tooth-face roughness is higher, rigorous service condition
(such as dust, high temperature, shock loading), it can transmit very high power and torque, thus the flank of tooth bears high stress,
And exposed gear is except in addition to pitch circle position is rolling friction, there is also a large amount of sliding friction during its engagement,
Exposed gear is generally in mixed film friction state (starting, during shutting down, the excessive, shock loading of shearing force etc.), therefore it is lubricated
Condition be it is very harsh, to obtain ideal lubrication protection, extend service life of gear, reduce loss, shutdown loss, mention
The operation stability of high equipment needs using suitable lubricant, and to have reasonable lubricating system and method.
The features of exposed gear determine that used lubricant must have good Adhesion property, extreme-pressure anti-wear
Performance, resistance to shock loads, and regard concrete operations conditions and environment need can resistant to high temperatures, water resistant erosion, leakproofness is strong, reduces dust
Influence, sprinkler performance, mobile performance, without containing heavy metal and may be to prejudicial substance of environment and human body etc..
What earliest exposed gear lubricating agent was selected is pitch class, develops pure oils, compound oil and adhesion rouge again thereafter
Class product.The oil film that asphalt product is formed is thicker, energy high temperature resistant, but because environmental protection, personnel's harm and leakage are difficult to locate
Reason etc., gradually replaced novel lubricant.Pure oils product either mineral type or synthesis type, usually added with extreme pressure
Additive, base oil are high viscosity, because transparent be easy to observe the flank of tooth, but to the more demanding of sealing, are leaked not easy to handle.
Compound oil is to have added solid lubricant on the basis of pure oils, to improve resistance to shock loads ability, and increases urgent profit
Sliding function.
Adhesion lipid is to be thickened high viscosity base oil by thickening agent, and added with the production of EP agent and solid lubricant
Product, due to bearing capacity height, oil film thickness, high temperature resistant and water, abrasion resistance is excellent, and self-sealing is good, is not easy to leak, and is easy to dynamic and sees
Many advantages, such as examining contact force distribution, in market, application has above occupied leading status.
The compound additive that a kind of exposed gear grease is described in patent 201010571320.4, by base oil, antioxidant,
Rust oxidation, metal deactivator, antiwear additive, extreme pressure agent, tackifier, waterrepellent polymeric, phosphate vitreum, chromium oxide powder,
Titanium valve etc. is mixed, heats, is stirred.Product can keep the anti-oxidant of lubricating grease for a long time, high temperature resistant, and anti-extreme pressure is anti-friction etc.
Various performances simultaneously have the effect of reduction noise, reduce the vibration of machinery equipment, while extending the service life of lubricating grease, but produce
Complex process, required raw material types are various, especially contain solid lubricant, practical operation is difficult, stability, low temperature properties
It can be not good enough.
Patent 201310187590.9 discloses a kind of low speed coal mill heavy load exposed gear grease and preparation method thereof, base
Plinth oil, gear oil, thickening agent, lithium hydroxide, boric acid, N- phenyl-α-naphthylamine, tricresyl phosphate, preservative and antirust agent tune
With form.The product has excellent inoxidizability, corrosion resistance, extreme pressure anti-wear, water-resistance and protective, is particularly suitable for disliking
The lubrication work of the low speed coal mill heavy load exposed gear to work under bad environmental condition, but lithium hydroxide therein in alkalinity,
Boric acid is solid, therefore its production process has higher requirements in acidity, is not purely simply to reconcile, product stability
The deficiencies of, it is not able to satisfy special cryogenic conditions requirement.
Exposed gear quasi-hydrodynamic lubrication oil/fat composition of the present invention, mainly for the industries exposed gear such as coal mine, cement
Lubricant leakage phenomenon is extremely serious, poor performance at low temperatures, is not able to satisfy requirement under outdoor low temperature environment and develops.The product
Extreme-pressure anti-wear, anti-oxidant corrosion resistance are good, especially have splendid anti-sintering load ability.Product is repeatedly changed simultaneously
Into with good low-temperature lubrication (requirement of -20 DEG C of environment above can be met, and low in cost), leak resistance.
Summary of the invention
The object of the present invention is to provide a kind of exposed gear quasi-hydrodynamic lubrication oil/fat composition, the composition has outstanding anti-
The performances such as performance, low-temperature lubrication performance, extreme-pressure anti-wear, antioxygen anti-corrosion, antirust are leaked, can meet what long-time was used in open-air atmosphere
Exposed gear lubricating needs.Exposed gear quasi-hydrodynamic lubrication oil/fat composition provided by the invention, including following components：
A：Composite multi-functional antioxygen antiwear additive, by the compounding such as extreme pressure anti-wear additives, oxidation and corrosion inhibitor and metal deactivator
At with good extreme-pressure anti-wear, the anti-rotten and antirust function of antioxygen.
B：Thickening agent is that alkyl rouge, soap grease, inorganic or alicyclic organic, polyurea grease and calcium sulfonate grease etc. are one such
Or mixtures thereof；
C：Extreme-pressure anti-wear reinforcing agent, including sulfide isobutene, trithiophenyl phosphate, di-n-butyl phosphite, thio phosphorus
Or mixtures thereof one of extreme pressure anti-wear additives such as acid esters ammonium salt, borate.
D：Base oil is or mixtures thereof mineral substance base oil, synthesis type base oil；
Other additives are also needed in lubricant composition of the invention, as Poly alpha Olefins (PAO), polymethacrylates drop
Solidifying agent, ethylene-propylene copolymer or polymethacrylate viscosity index improver etc..
Composite multi-functional antioxygen antiwear additive：
It is made of a variety of antioxygens, wear-resistant and metal deactivator, there is good anti-oxidant, extreme-pressure anti-wear, anticorrosive, antirust
Performance accounts for the 0.5-10% of lubricant oil composite, preferably 0.8%-5%, and the JR4308 of proprietary technology can be selected, and major technique refers to
It marks as follows：
Composite multi-functional antioxygen antiwear additive major quality controlling index
| Project | Quality index | Representative value | Test method |
| 100 DEG C of dynamic viscosities, (mm2/s) | No more than 10 | 5.6 | GB/T265 |
| Acid value, (mgKOH/g) | No more than 25 | 17.55 | GB/T4945 |
| Mechanical admixture, % | No more than 0.05 | 0.01 | GB/T511 |
| Moisture, % | No more than 0.10 | Trace | GB/T260 |
| Sulfur content, % | Not less than 7.25 | 7.65 | SH/T0303 |
| Phosphorus content, % | Not less than 4.2 | 4.48 | SH/T0296 |
| Nitrogen content, % | Not less than 2.0 | 2.98 | SH/T0656 |
| Flash-point (is opened), DEG C | Not less than 120 | 165 | GB/T3536 |
Thickening agent can select alkyl rouge, soap grease, inorganic or alicyclic organic, polyurea grease, overbased sulfonate, bigcatkin willow
Or mixtures thereof one of hydrochlorate.The component accounts for the 15%-45%, preferably 20%-40% of lubricant oil composite gross mass.
Extreme-pressure anti-wear reinforcing agent selects sulfide isobutene, trithiophenyl phosphate, di-n-butyl phosphite, alkyl sulfur generation
Or mixtures thereof one of extreme pressure anti-wear additives such as phosphate, alkylated phosphate esters amine salt, borate.The component accounts for lubricating oil group
Close the 1%-5%, preferably 1.5%-4.5% of object gross mass.
Grease base oil can be selected from mineral oil and synthetic lubricant fluid or their mixture.The mineral oil is in viscosity
On can be from light fraction mineral oil to heavy distillat mineral oil, including liquid hydrofinishing, the processed linear paraffin of solvent, cycloalkanes
Hydrocarbon and other mixed type mineral lubricating oils.Synthetic lubricant fluid includes polymerization hydrocarbon ils, alkyl benzene and its derivative, Esters oil etc..
There may also be following other additives in lubricant composition of the invention：
Pour-point depressant or make cold flow improver, the low temperature fluidity of product can be reduced.Typical additive is alkane
Base is C8To C18Dialkyl fumarate/vinyl acetate copolymer, poly- alkylmethacrylate, Poly alpha Olefins (PAO) etc., often
The trade names seen have T803 etc..
Suitable viscosity index improver is the copolymer of polyisobutene, ethylene and propylene and advanced a- alkene, poly- methyl
Acrylate/salt, poly- alkylmethacrylate, partially hydrogenated copolymer of isoprene/butadiene etc..They can be with structure
At the 10%-30% of lubricant oil composite gross mass.
Following methods preparation can be used in lubricant composition of the invention：Blending kettle is added in base oil in proportion, is stirred
65 ± 5 DEG C are heated to, successively puts into pour-point depressant, viscosity index improver etc., heated constant temperature is between 65~70 DEG C, 1 hour left side of agitation cycle
It is right.Addition multifunction additive JR4308, extreme pressure anti-wear additives etc. later, circulation stirring 2-4 hours.It draws oil sample detection, after qualified
Heating is started the cycle over, temperature control is stirred 2-4 hours in 80 ± 5 DEG C of addition thickening agents, and circulation stirring is equal to thickening agent dispersion
It is even.
The present invention selects the wear-resistant multifunction additive optimum organization of antioxygen with synergy, and compounds suitable extreme pressure
Antiwear additive and thickening additive, produce significant extreme-pressure anti-wear, antioxidant effect, can satisfy industrial exposed gear, industry
Enclosed gear, the antioxygen of reducer gear, the requirement of wear-resistant and other greasy properties, especially can satisfy the open type of open work
The special lubrication of gear.
Specific embodiment
The following examples rather than are limited the invention to further explanation of the invention, essence of the invention
Mind and protection scope are listed in claims.
Embodiment 1
9.2 parts of HVIH150 base oil are sequentially added in reconciliation reaction kettle, 36.3 parts of HVIH220 base oil, unlatching is stirred
It mixes, is to slowly warm up to 65 ± 5 DEG C, then 0.2 part of T803B pour-point depressant of addition, 17.5 parts of polyphosphazene polymer isobutylene type viscosity index improver, and
Stirring 1 hour is maintained, 0.5 part of T309 extreme pressure anti-wear additives, 2 parts of T321 are then sequentially added, 2.25 parts of JR4308 complexing agents maintain
It 70 ± 5 DEG C of reaction temperature, stirs 2-4 hours.It draws oil sample detection, heating is started the cycle over after qualified, temperature control adds at 80 ± 5 DEG C
Enter 32 parts of thickening agent lithium saponify, stir 2-4 hours, temperature is controlled at 65~70 DEG C, and circulation stirring to thickening agent is uniformly dispersed.Institute
Obtain open-type gear grease, similar viscosity (- 15 DEG C) 296.5Pa.s, dropping point：186 DEG C, cone penetration：364 (24 DEG C),
Copper corrosion qualification (SH/0331), evaporativity 1.3%, 71 kilograms of seizing load PB, sintering load PD 315 are public
Jin, product have the service performances such as good extreme-pressure anti-wear.
Embodiment 2
9 parts of HVIH150 base oil are sequentially added in reconciliation reaction kettle, 36.5 parts of HVIH220 base oil, open stirring,
65 ± 5 DEG C are to slowly warm up to, then 0.2 part of T803B pour-point depressant of addition, 17.5 parts of polyphosphazene polymer isobutylene type viscosity index improver, and tieed up
Stirring 1 hour is held, 2 parts of T321 extreme pressure anti-wear additives, 0.75 part of T309 are then sequentially added, 2.25 parts of JR4308 complexing agents maintain
It 70 ± 5 DEG C of reaction temperature, stirs 2-4 hours.It draws oil sample detection, heating is started the cycle over after qualified, temperature control adds at 80 ± 5 DEG C
Enter 31.8 parts of thickening agent lithium saponify, stir 2-4 hours, temperature is controlled at 65~70 DEG C, and circulation stirring to thickening agent is uniformly dispersed.
Gained open-type gear grease, similar viscosity (- 15 DEG C) 298Pa.s, dropping point：187 DEG C, cone penetration：366(24
DEG C),
Copper corrosion qualification (SH/0331), evaporativity 1.28%, 80 kilograms of seizing load PB, sintering load PD 315 are public
Jin, product have the service performances such as good extreme-pressure anti-wear.
Embodiment 3
9 parts of HVIH150 base oil are sequentially added in reconciliation reaction kettle, 36.5 parts of HVIH220 base oil, open stirring,
65 ± 5 DEG C are to slowly warm up to, then 0.2 part of T803B pour-point depressant of addition, 17.25 parts of polyphosphazene polymer isobutylene type viscosity index improver, and tieed up
Stirring 1 hour is held, 2 parts of T321 extreme pressure anti-wear additives, 1 part of T309 are then sequentially added, 2.25 parts of JR4308 complexing agents maintain reaction
It 70 ± 5 DEG C of temperature, stirs 2-4 hours.It draws oil sample detection, heating is started the cycle over after qualified, temperature controls thick in 80 ± 5 DEG C of additions
It 31.8 parts of agent lithium saponify, stirs 2-4 hours, temperature is controlled at 65~70 DEG C, and circulation stirring to thickening agent is uniformly dispersed.
Gained open-type gear grease, similar viscosity (- 15 DEG C) 298Pa.s, dropping point：187 DEG C, cone penetration：366(24
DEG C),
Copper corrosion qualification (SH/0331), evaporativity 1.28%, 90 kilograms of seizing load PB, sintering load PD 315 are public
Jin, product have the service performances such as good extreme-pressure anti-wear.
Embodiment 4
9 parts of HVIH150 base oil are sequentially added in reconciliation reaction kettle, 36.5 parts of HVIH220 base oil, open stirring,
65 ± 5 DEG C are to slowly warm up to, then 0.2 part of T803B pour-point depressant of addition, 17.25 parts of polyphosphazene polymer isobutylene type viscosity index improver, and tieed up
Stirring 1 hour is held, 2 parts of T321 extreme pressure anti-wear additives, 1 part of T309 are then sequentially added, 2.45 parts of JR4308 complexing agents maintain reaction
It 70 ± 5 DEG C of temperature, stirs 2-4 hours.It draws oil sample detection, heating is started the cycle over after qualified, temperature controls thick in 80 ± 5 DEG C of additions
It 31.6 parts of agent lithium saponify, stirs 2-4 hours, temperature is controlled at 65~70 DEG C, and circulation stirring to thickening agent is uniformly dispersed.
Gained open-type gear grease, similar viscosity (- 15 DEG C) 298Pa.s, dropping point：187 DEG C, cone penetration：366(24
DEG C),
Copper corrosion qualification (SH/0331), evaporativity 1.28%, 100 kilograms of seizing load PB, sintering load PD 315
Kilogram, product has the service performances such as good extreme-pressure anti-wear.
Claims (7)
1. exposed gear quasi-hydrodynamic lubrication oil/fat composition provided by the invention, including following components：
A：Composite multi-functional antioxygen antiwear additive, is compounded by extreme pressure anti-wear additives, oxidation and corrosion inhibitor and metal deactivator etc., tool
There is the anti-rotten and antirust function of good extreme-pressure anti-wear, antioxygen.
B：Thickening agent be alkyl rouge, soap grease, inorganic or alicyclic organic, polyurea grease and calcium sulfonate grease etc. it is one such or its
Mixture.
C：Extreme-pressure anti-wear reinforcing agent, including sulfide isobutene, trithiophenyl phosphate, di-n-butyl phosphite, thiophosphate
Or mixtures thereof one of extreme pressure anti-wear additives such as ammonium salt, borate.
D：Base oil is or mixtures thereof mineral substance base oil, synthesis type base oil.
2. quasi-hydrodynamic lubrication oil/fat composition described in accordance with the claim 1, it is characterised in that also need other add in the composition
Add agent, as Poly alpha Olefins (PAO) or polymethacrylate pour-point depressant, ethylene-propylene copolymer or polymethacrylate viscosity index change
Improve the viscosity temperature characteristic of base oil into agent etc..
3. quasi-hydrodynamic lubrication oil/fat composition described in accordance with the claim 1, it is characterised in that composite multi-functional antioxygen antiwear additive
It is made of a variety of antioxygens, wear-resistant and metal deactivator, there is good anti-oxidant, extreme-pressure anti-wear, anticorrosive, rustless property,
The 0.5-10% of lubricant composition is accounted for, the key technical indexes is as follows：Sulfur content is not less than 7.25%, and phosphorus content is not less than
4.2%, nitrogen content is not less than 2.0%.
4. quasi-hydrodynamic lubrication oil/fat composition described in accordance with the claim 1, it is characterised in that extreme-pressure anti-wear reinforcing agent selects vulcanization
Isobutene, trithiophenyl phosphate, di-n-butyl phosphite, alkyl sulfur substituted phosphate, alkylated phosphate esters amine salt, borate
Or mixtures thereof one of equal extreme pressure anti-wear additives.The component accounts for the 0.5%-10% of lubricant composition gross mass.
5. quasi-hydrodynamic lubrication oil/fat composition described in accordance with the claim 1, it is characterised in that thickening agent can select alkyl rouge, soap
One of base rouge, inorganic or alicyclic organic, polyurea grease, calcium sulfonate grease, overbased sulfonate, salicylate or its mixing
Object.The component accounts for the 15%-45% of lubricant oil composite gross mass.
6. quasi-hydrodynamic lubrication oil/fat composition described in accordance with the claim 1, it is characterised in that grease base oil can be selected from mine
Object oil and synthetic lubricant fluid or their mixture.
7. quasi-hydrodynamic lubrication oil/fat composition described in accordance with the claim 1, it is characterised in that the product can be satisfied with exposed gear
Lubrication need, be also used as the lubricant of the gears such as heavy load enclosed gear, speed reducer, and make as centralized lubrication rouge
With.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810639773.2A CN108865350A (en) | 2018-06-20 | 2018-06-20 | A kind of exposed gear quasi-hydrodynamic lubrication oil/fat composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810639773.2A CN108865350A (en) | 2018-06-20 | 2018-06-20 | A kind of exposed gear quasi-hydrodynamic lubrication oil/fat composition |
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| Publication Number | Publication Date |
|---|---|
| CN108865350A true CN108865350A (en) | 2018-11-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810639773.2A Pending CN108865350A (en) | 2018-06-20 | 2018-06-20 | A kind of exposed gear quasi-hydrodynamic lubrication oil/fat composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112375604A (en) * | 2020-10-16 | 2021-02-19 | 山东沃特润滑科技有限公司 | Non-soap-base fully-synthetic lubricating grease and preparation method thereof |
| CN112592699A (en) * | 2021-01-27 | 2021-04-02 | 陕西延长石油（集团）有限责任公司 | Low-damage drilling fluid suitable for ultra-low permeability reservoir and preparation method thereof |
| CN114181755A (en) * | 2021-12-24 | 2022-03-15 | 洛阳精一新材料科技有限公司 | Lubricating grease for high-adhesion low-current plastic gear box and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435296A (en) * | 1981-05-22 | 1984-03-06 | The British Petroleum Company Limited | Lubricating grease |
| CN102485859A (en) * | 2010-12-02 | 2012-06-06 | 天津市公博科技开发有限公司 | Composite additive added in open gear lubricating grease |
| CN104194889A (en) * | 2014-08-30 | 2014-12-10 | 广西大学 | Exposed gear grease composition |
| CN107760430A (en) * | 2016-08-23 | 2018-03-06 | 郑生宏 | A kind of special quasi-hydrodynamic lubrication fluid composition of oil pumping unit reduction gearbox |
-
2018
- 2018-06-20 CN CN201810639773.2A patent/CN108865350A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435296A (en) * | 1981-05-22 | 1984-03-06 | The British Petroleum Company Limited | Lubricating grease |
| CN102485859A (en) * | 2010-12-02 | 2012-06-06 | 天津市公博科技开发有限公司 | Composite additive added in open gear lubricating grease |
| CN104194889A (en) * | 2014-08-30 | 2014-12-10 | 广西大学 | Exposed gear grease composition |
| CN107760430A (en) * | 2016-08-23 | 2018-03-06 | 郑生宏 | A kind of special quasi-hydrodynamic lubrication fluid composition of oil pumping unit reduction gearbox |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112375604A (en) * | 2020-10-16 | 2021-02-19 | 山东沃特润滑科技有限公司 | Non-soap-base fully-synthetic lubricating grease and preparation method thereof |
| CN112592699A (en) * | 2021-01-27 | 2021-04-02 | 陕西延长石油（集团）有限责任公司 | Low-damage drilling fluid suitable for ultra-low permeability reservoir and preparation method thereof |
| CN114181755A (en) * | 2021-12-24 | 2022-03-15 | 洛阳精一新材料科技有限公司 | Lubricating grease for high-adhesion low-current plastic gear box and preparation method thereof |
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