CN112342070A - Bridge anti-corrosion lubricating grease and preparation method thereof - Google Patents
Bridge anti-corrosion lubricating grease and preparation method thereof Download PDFInfo
- Publication number
- CN112342070A CN112342070A CN202011367972.6A CN202011367972A CN112342070A CN 112342070 A CN112342070 A CN 112342070A CN 202011367972 A CN202011367972 A CN 202011367972A CN 112342070 A CN112342070 A CN 112342070A
- Authority
- CN
- China
- Prior art keywords
- parts
- lubricating grease
- bridge
- weight
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
-
- 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
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/14—Containing carbon-to-nitrogen double bounds, e.g. guanidines, hydrazones, semicarbazones
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
-
- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/024—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amido or imido group
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a bridge anti-corrosion lubricating grease which comprises the following components in parts by weight: 60-85 parts of base oil, 10-15 parts of thickening agent, 3-8 parts of benzotriazole fatty acid ammonium salt, 5-7 parts of isocyanate, 2-5 parts of dialkyl diphenylamine, 5-8 parts of polyacrylamide, 3-5 parts of polyisobutylene and 1-3 parts of antirust agent. The lubricating grease has more outstanding pumping performance, permeability, extreme pressure abrasion resistance, water resistance and protective performance, is particularly suitable for lubricating the bridge supporting device working under severe environment conditions, effectively improves the corrosion resistance of the bridge, greatly prolongs the service life of the bridge and reduces the use cost.
Description
Technical Field
The invention belongs to the technical field of lubricating grease, and particularly relates to bridge anti-corrosion lubricating grease and a preparation method thereof.
Background
With the continuous development of scientific technology, the technology of the manufacturing industry is more and more developed, various high-speed rails, highways and the like are continuously built, various bridges need to be built in the construction process, because the weight of vehicles such as automobiles, passenger cars, trucks, trains and the like is more and more increased due to the development of the existing science and technology, the bearing capacity of the bridge needs to be more and more increased, the corrosion resistance of the bridge needs to be improved to improve the service quality of the bridge, and in order to avoid the oxidation of used materials during the bridge construction, some lubricating grease needs to be added in advance in the construction process, so that the corrosion and rust of the bridge in the use process can be effectively avoided, and therefore, the special anti-corrosive lubricating grease for the bridge needs to be developed to improve the safety performance and the service life of the bridge.
Disclosure of Invention
The invention aims to provide the high-performance special anti-corrosion lubricating grease for the bridge, which can effectively improve the anti-corrosion capability of the bridge and greatly prolong the service life of the bridge. In addition, the invention also provides a preparation method of the bridge anti-corrosion lubricating grease, and the method has the advantages of reasonable raw material proportion, advanced process and low cost.
The invention relates to a bridge anti-corrosion lubricating grease which is characterized by comprising the following components in parts by weight: 60-85 parts of base oil, 10-15 parts of a thickening agent, 3-8 parts of benzotriazole fatty acid ammonium salt, 5-7 parts of isocyanate, 2-5 parts of dialkyl diphenylamine, 5-8 parts of polyacrylamide, 3-5 parts of polyisobutylene and 1-3 parts of an antirust agent, wherein the base oil is one or a mixture of more than two of synthetic oil, BS synthetic oil and high-viscosity mineral oil, and the thickening agent is fatty acid.
The paint comprises the following components in parts by weight: 65 parts of base oil, 12 parts of a thickening agent, 5 parts of benzotriazole fatty acid ammonium salt, 6 parts of isocyanate, 3 parts of dialkyl diphenylamine, 3 parts of polyacrylamide, 4 parts of polyisobutylene and 2 parts of an antirust agent.
The method comprises the following steps:
(1) adding 10-15 parts by weight of thickening agent and 25-30 parts by weight of base oil into a saponification kettle, gradually heating until fatty acid is dissolved, and stirring;
(2) when the temperature of the mixed solution in the step (1) is raised to 60-70 ℃, adding 5-7 parts of isocyanate into a saponification kettle, continuously raising the temperature for saponification, controlling the temperature to be 100-;
(3) after the saponification reaction is finished, the qualified materials are continuously heated to 120 ℃, 35-55 parts by weight of base oil are added for thickening, 3-8 parts of benzotriazole fatty acid ammonium salt are added for stirring, the temperature is continuously heated to 130-;
and (2) refluxing and cooling the lubricating grease for 2-4h under stirring in a blending kettle, adding 3-5 parts of polyisobutylene and 5-8 parts of polyacrylamide when the temperature is reduced to 100 ℃ under stirring, adding 1-3 parts of an antirust agent after stirring for more than one hour, cooling after uniformly stirring, grinding by a grinding machine, filtering and refining to obtain the high-performance bridge anticorrosion lubricating grease.
The bridge anti-corrosion lubricating grease is mainly applied to lubrication of parts such as bridge construction, traffic bridges and the like. The special-purpose lubricant has excellent pumpability, permeability, extreme pressure abrasion resistance, water resistance and protectiveness, effectively improves the corrosion resistance of the bridge, greatly prolongs the service life of the bridge, and reduces the use cost.
Detailed Description
The present invention is described in further detail below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples, and that all the technologies realized based on the above subject matter of the present invention belong to the scope of the present invention.
Example 1
The bridge anti-corrosion lubricating grease comprises the following components in parts by weight: 65 parts of base oil, 12 parts of thickening agent, 5 parts of benzotriazole fatty acid ammonium salt, 6 parts of isocyanate, 3 parts of dialkyl diphenylamine, 6 parts of polyacrylamide, 4 parts of polyisobutylene and 2 parts of antirust agent.
The preparation method of the bridge anti-corrosion lubricating grease comprises the following steps:
(1) adding 12 parts by weight of thickening agent and 25 parts by weight of base oil into a saponification kettle, gradually heating until fatty acid is dissolved, and starting stirring;
(2) when the temperature of the mixed solution in the step (1) is raised to 60-70 ℃, adding 6 parts of isocyanate into a saponification kettle, continuously raising the temperature for saponification, controlling the temperature to be 100-;
(3) after the saponification reaction is finished, the qualified materials are continuously heated to 120 ℃, 40 parts by weight of base oil is added for thickening, 5 parts of benzotriazole fatty acid ammonium salt is added for stirring, the temperature is continuously heated to 130-140 ℃, the temperature is kept for 15min, 3 parts by weight of dialkyl diphenylamine is added, the contents in the kettle are in a true liquid state, and lubricating grease is pumped into a blending kettle through a filter for reflux cooling;
(4) and (2) refluxing and cooling the lubricating grease for 2-4 hours under stirring in a blending kettle, adding 4 parts of polyisobutylene and 6 parts of polyacrylamide when the temperature is reduced to 100 ℃ under stirring, stirring for more than one hour, adding 2 parts of antirust agent, uniformly stirring, cooling, grinding by a grinding machine, filtering and refining to obtain the high-performance bridge anticorrosion lubricating grease.
Example 2
The bridge anti-corrosion lubricating grease comprises the following components in parts by weight: 60 parts of base oil, 10 parts of thickening agent, 3 parts of benzotriazole fatty acid ammonium salt, 5 parts of isocyanate, 2 parts of dialkyl diphenylamine, 5 parts of polyacrylamide, 3 parts of polyisobutylene and 1 part of antirust agent.
The preparation method of the bridge anti-corrosion lubricating grease comprises the following steps:
(1) adding 10 parts by weight of thickening agent and 25 parts by weight of base oil into a saponification kettle, gradually heating until fatty acid is dissolved, and starting stirring;
(2) when the temperature of the mixed solution in the step (1) is raised to 60-70 ℃, adding 5 parts of isocyanate into a saponification kettle, continuously raising the temperature for saponification, controlling the temperature to be 100-;
(3) after the saponification reaction is finished, the qualified materials are continuously heated to 120 ℃, 35 parts by weight of base oil is added for thickening, 3 parts of benzotriazole fatty acid ammonium salt is added for stirring, the temperature is continuously heated to 130-140 ℃, the temperature is kept for 15min, 2 parts by weight of dialkyl diphenylamine is added, the contents in the kettle are in a true liquid state, and lubricating grease is pumped into a blending kettle through a filter for reflux cooling;
(4) and (2) refluxing and cooling the lubricating grease for 2-4h under stirring in a blending kettle, adding 3 parts of polyisobutylene and 5 parts of polyacrylamide when the temperature is reduced to 100 ℃ by stirring, stirring for more than one hour, adding 1 part of antirust agent, uniformly stirring, cooling, grinding by a grinding machine, filtering and refining to obtain the high-performance bridge anticorrosion lubricating grease.
Example 3
The bridge anti-corrosion lubricating grease comprises the following components in parts by weight: 85 parts of base oil, 15 parts of thickening agent, 8 parts of benzotriazole fatty acid ammonium salt, 7 parts of isocyanate, 5 parts of dialkyl diphenylamine, 8 parts of polyacrylamide, 5 parts of polyisobutylene and 3 parts of antirust agent.
The preparation method of the bridge anti-corrosion lubricating grease comprises the following steps:
(1) adding 15 parts by weight of thickening agent and 30 parts by weight of base oil into a saponification kettle, gradually heating until fatty acid is dissolved, and starting stirring;
(2) when the temperature of the mixed solution in the step (1) is raised to 60-70 ℃, adding 7 parts of isocyanate into a saponification kettle, continuously raising the temperature for saponification, controlling the temperature to be 100-;
(3) after the saponification reaction is finished, the qualified materials are continuously heated to 120 ℃, 55 parts by weight of base oil is added for thickening, 8 parts of benzotriazole fatty acid ammonium salt is added for stirring, the temperature is continuously heated to 130-140 ℃, the temperature is kept for 15min, 5 parts by weight of dialkyl diphenylamine is added, the contents in the kettle are in a true liquid state, and lubricating grease is pumped into a blending kettle through a filter for reflux cooling;
(4) and (2) refluxing and cooling the lubricating grease for 2-4h under stirring in a blending kettle, adding 5 parts of polyisobutylene and 8 parts of polyacrylamide when the temperature is reduced to 100 ℃ under stirring, stirring for more than one hour, adding 3 parts of antirust agent, uniformly stirring, cooling, grinding by a grinding machine, filtering and refining to obtain the high-performance bridge anticorrosion lubricating grease.
Compared with other lubricating greases on the market, the bridge anti-corrosion lubricating grease in the embodiments 1 to 3 has more outstanding pumping performance, permeability, extreme pressure anti-wear performance, water resistance and protective performance, and is particularly suitable for lubricating bridge supporting devices working under severe environmental conditions.
While there have been shown and described what are at present considered to be the principles of the invention, its essential features and advantages, it will be understood that the invention is capable of numerous modifications and variations, all of which are within the scope of the invention as hereinafter claimed.
Claims (3)
1. The bridge anti-corrosion lubricating grease is characterized by comprising the following components in parts by weight: 60-85 parts of base oil, 10-15 parts of a thickening agent, 3-8 parts of benzotriazole fatty acid ammonium salt, 5-7 parts of isocyanate, 2-5 parts of dialkyl diphenylamine, 5-8 parts of polyacrylamide, 3-5 parts of polyisobutylene and 1-3 parts of an antirust agent, wherein the base oil is one or a mixture of more than two of synthetic oil, BS synthetic oil and high-viscosity mineral oil, and the thickening agent is fatty acid.
2. The bridge anti-corrosion grease as claimed in claim 1, which comprises the following components in parts by weight: 65 parts of base oil, 12 parts of a thickening agent, 5 parts of benzotriazole fatty acid ammonium salt, 6 parts of isocyanate, 3 parts of dialkyl diphenylamine, 3 parts of polyacrylamide, 4 parts of polyisobutylene and 2 parts of an antirust agent.
3. The preparation method of the bridge anti-corrosive lubricating grease disclosed by claim 1 is characterized by comprising the following steps of:
adding 10-15 parts by weight of thickening agent and 25-30 parts by weight of base oil into a saponification kettle, gradually heating until fatty acid is dissolved, and stirring;
when the temperature of the mixed solution in the step (1) is raised to 60-70 ℃, adding 5-7 parts of isocyanate into a saponification kettle, continuously raising the temperature for saponification, controlling the temperature to be 100-;
after the saponification reaction is finished, the qualified materials are continuously heated to 120 ℃, 35-55 parts by weight of base oil are added for thickening, 3-8 parts of benzotriazole fatty acid ammonium salt are added for stirring, the temperature is continuously heated to 130-;
and (2) refluxing and cooling the lubricating grease for 2-4h under stirring in a blending kettle, adding 3-5 parts of polyisobutylene and 5-8 parts of polyacrylamide when the temperature is reduced to 100 ℃ under stirring, adding 1-3 parts of an antirust agent after stirring for more than one hour, cooling after uniformly stirring, grinding by a grinding machine, filtering and refining to obtain the high-performance bridge anticorrosion lubricating grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367972.6A CN112342070A (en) | 2020-11-30 | 2020-11-30 | Bridge anti-corrosion lubricating grease and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367972.6A CN112342070A (en) | 2020-11-30 | 2020-11-30 | Bridge anti-corrosion lubricating grease and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112342070A true CN112342070A (en) | 2021-02-09 |
Family
ID=74365150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011367972.6A Pending CN112342070A (en) | 2020-11-30 | 2020-11-30 | Bridge anti-corrosion lubricating grease and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112342070A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008105375A1 (en) * | 2007-02-26 | 2008-09-04 | Ntn Corporation | Grease for high-speed bearing and rolling bearing for high speed |
| CN102311850A (en) * | 2011-08-04 | 2012-01-11 | 安庆市中天石油化工有限公司 | Grease specially used for heavy-load open-type gear and preparation method thereof |
| CN105062624A (en) * | 2015-08-11 | 2015-11-18 | 新乡市恒星化工有限责任公司 | High-temperature anti-friction lubricating grease as well as preparation method and application thereof |
| CN105255552A (en) * | 2015-10-15 | 2016-01-20 | 安徽中天石化股份有限公司 | Lubricating grease dedicated to automobile constant velocity universal joint and preparation method of lubricating grease |
| CN105273813A (en) * | 2015-09-01 | 2016-01-27 | 当涂县维思共创工业产品设计有限公司 | Graphite lubricant with good high temperature adhesion |
| CN108004000A (en) * | 2017-12-26 | 2018-05-08 | 苏州贝尔纳德铁路设备有限公司 | A kind of track screw long-acting special anti-corrosion grease and preparation method thereof |
| 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 |
| CN110872537A (en) * | 2019-12-03 | 2020-03-10 | 新乡市恒星科技有限责任公司 | High-temperature heavy-load anti-seize lubricating grease and preparation method thereof |
| CN111635799A (en) * | 2020-05-15 | 2020-09-08 | 清华大学 | Lubricating oil composition and use thereof |
-
2020
- 2020-11-30 CN CN202011367972.6A patent/CN112342070A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008105375A1 (en) * | 2007-02-26 | 2008-09-04 | Ntn Corporation | Grease for high-speed bearing and rolling bearing for high speed |
| CN102311850A (en) * | 2011-08-04 | 2012-01-11 | 安庆市中天石油化工有限公司 | Grease specially used for heavy-load open-type gear and preparation method thereof |
| CN105062624A (en) * | 2015-08-11 | 2015-11-18 | 新乡市恒星化工有限责任公司 | High-temperature anti-friction lubricating grease as well as preparation method and application thereof |
| CN105273813A (en) * | 2015-09-01 | 2016-01-27 | 当涂县维思共创工业产品设计有限公司 | Graphite lubricant with good high temperature adhesion |
| CN105255552A (en) * | 2015-10-15 | 2016-01-20 | 安徽中天石化股份有限公司 | Lubricating grease dedicated to automobile constant velocity universal joint and preparation method of lubricating grease |
| CN108004000A (en) * | 2017-12-26 | 2018-05-08 | 苏州贝尔纳德铁路设备有限公司 | A kind of track screw long-acting special anti-corrosion grease and preparation method thereof |
| 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 |
| CN110872537A (en) * | 2019-12-03 | 2020-03-10 | 新乡市恒星科技有限责任公司 | High-temperature heavy-load anti-seize lubricating grease and preparation method thereof |
| CN111635799A (en) * | 2020-05-15 | 2020-09-08 | 清华大学 | Lubricating oil composition and use thereof |
Non-Patent Citations (1)
| Title |
|---|
| 肖友程等: "高抗水淋连铸机润滑脂的研制", 《能源化工》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101575548B (en) | Lubricating grease special for constant-speed universal joint and preparing method thereof | |
| CN101649243B (en) | High and low temperature lubricating grease and preparation method thereof | |
| CN102399615B (en) | Lubricating grease used for automobile hub bearing and preparation method thereof | |
| CN103484204A (en) | Lubricating grease containing modified silica component and preparation method of lubricating grease | |
| CN111073746A (en) | Polyurea-based hub bearing lubricating grease composition and preparation method and application thereof | |
| CN102031185A (en) | Anti micro-pitting industrial gear oil composition | |
| CN102433192B (en) | Leakage-proof speed reducer lubricating grease composition and preparation method thereof | |
| CN1078240C (en) | High-low-temp. extreme-pressure resisting special lubricant | |
| CN114854474A (en) | Low-friction-coefficient anti-wear hydraulic oil | |
| CN105038913B (en) | Lubricant compositions and preparation method thereof | |
| CN110616103B (en) | Commercial vehicle wheel hub bearing lubricating grease and preparation method thereof | |
| CN101519621A (en) | High-performance high-water base lubricant | |
| CN107828480B (en) | High-performance synthetic power-assisted steering oil composition and preparation method thereof | |
| CN102337173B (en) | Anti-shearing long-life power steering fluid composition | |
| CN112940836B (en) | High-dispersity nano molybdenum disulfide water-based rolling liquid and preparation method thereof | |
| CN112342070A (en) | Bridge anti-corrosion lubricating grease and preparation method thereof | |
| CN112500909A (en) | Environment-friendly lubricating oil and preparation method thereof | |
| CN107189842A (en) | Engine motor oil and preparation method thereof | |
| CN106367183A (en) | Vehicle gear oil with good abrasion resistant performance and preparation method thereof | |
| CN107541318B (en) | Wear-resistant anti-rust oil containing graphene and preparation method thereof | |
| CN116240060A (en) | Synthetic high-service-life Wen Wochi lubricating oil and preparation method thereof | |
| CN112522017B (en) | Composite barium-based lubricating grease and preparation method thereof | |
| CN1052890A (en) | Antifrictional lithium-base composite grease | |
| CN110982594A (en) | Special low-temperature lubricating grease for coal mine and preparation method thereof | |
| CN113980722A (en) | Low-temperature high-speed lubricating grease and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210209 |