CN116004306A - Main bearing sealing grease of shield tunneling machine and preparation method thereof - Google Patents
Main bearing sealing grease of shield tunneling machine and preparation method thereof Download PDFInfo
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- CN116004306A CN116004306A CN202211640188.7A CN202211640188A CN116004306A CN 116004306 A CN116004306 A CN 116004306A CN 202211640188 A CN202211640188 A CN 202211640188A CN 116004306 A CN116004306 A CN 116004306A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Abstract
The invention relates to the technical field of grease for mechanical equipment, in particular to sealing grease and a preparation method and application thereof. The sealing grease comprises the following raw material components: 15-20 parts of base oil, 5-15 parts of tackifier, 5-10 parts of antirust agent, 5-10 parts of liquid antiwear agent, 2-6 parts of fiber, 30-50 parts of filler, 4-8 parts of organic solid antiwear agent, 4-8 parts of inorganic solid antiwear agent and 5-20 parts of lubricant. The organic, inorganic and liquid antiwear agents are combined, so that the organic solid antiwear agent has excellent non-tackiness, and meanwhile, the dispersibility and stability of the inorganic solid antiwear agent in a product are improved; the liquid antiwear agent has a boundary lubricating film with higher bearing capacity and antiwear performance, plays a role in antiwear, and three antiwear agents synergistically improve the antiwear performance; the sealing grease system has good compatibility, good storage stability and small oil distribution by matching with the tackifier containing polar groups and the base oil.
Description
Technical Field
The invention relates to the technical field of grease for mechanical equipment, in particular to main bearing sealing grease for a shield tunneling machine and a preparation method of the main bearing sealing grease.
Background
In the construction process of the shield machine, a soil body is cut by the cutter head to excavate a tunnel, and the main bearing of the shield machine bears the axial and radial loads and moments of the cutting cutter head and supports the rotation and transmission of the cutter head, so that the reliability, the safety and the service life of the main bearing are of great importance. Because the excavated tunnel is usually positioned at a position of tens of meters below the ground, the excavated surface has great soil pressure, and water, foaming agent or bentonite can be injected into the tunnel surface in order to reduce the torque of a cutter head and improve the mobility of soil in the tunneling process, a main bearing sealing system is required to prevent external groundwater, dregs, foaming agent and the like from entering the main bearing.
The main bearing sealing system of the shield machine is generally composed of labyrinth seals and lip seals, the seals are separated by sealing separation rings, and lubricating grease is injected into cavities between the seals. The cavity of the labyrinth structure is filled with main bearing sealing grease through the oil duct of the main bearing outer ring, so that water, foam, slurry, bentonite which is filled into a face in the tunneling process of the shield machine, dregs and groundwater which are cut off by the cutter disc and the like can be effectively prevented from entering the main bearing system, and the sealing ring can be lubricated, so that the service life of the main bearing is prolonged, the tunneling efficiency of the shield machine is improved more effectively, and the smooth progress of shield construction is ensured. The common sealing grease uses inorganic solid powder such as molybdenum disulfide, tungsten disulfide, graphite and the like as an antiwear agent, so that the friction resistance and the lubricating performance of the product are improved. However, the anti-wear agent is easy to agglomerate in the base oil, and the addition amount is slightly large, so that the anti-wear agent has uneven effect and dispersion and cannot exert the excellent performance.
Along with the needs of tunnel construction, the large-diameter shield machines are more and more, and higher requirements are put on pressure bearing type, friction resistance, sealing performance and the like of main bearing sealing grease, so that the development of the sealing grease with excellent friction resistance and sealing performance is needed.
Disclosure of Invention
Based on the technical problems, the main bearing sealing grease of the shield machine, which is friction-resistant and excellent in sealing performance, is obtained by combining a plurality of antiwear agents and optimizing base oil and tackifier.
The first aim of the invention is to provide the main bearing sealing grease of the shield machine, which comprises the following raw material components: 15-20 parts of base oil, 5-15 parts of tackifier, 5-10 parts of antirust agent, 5-10 parts of liquid antiwear agent, 2-6 parts of fiber, 30-50 parts of filler, 4-8 parts of organic solid antiwear agent, 4-8 parts of inorganic solid antiwear agent and 5-20 parts of lubricant;
the liquid antiwear agent is one or more of 1-methyl-3-butyl imidazole hexafluorophosphate ionic liquid, 1-butyl-3-methyl imidazole tetrafluoroborate ionic liquid, 1-ethyl-3-methyl imidazolium dicyandiamide salt ionic liquid and 1-ethyl-3-methyl imidazole acetate ionic liquid.
In one embodiment, the main bearing sealing grease of the shield machine comprises the following raw material components: 18-20 parts of base oil, 8-12 parts of tackifier, 5-8 parts of antirust agent, 5-8 parts of liquid antiwear agent, 2-4 parts of fiber, 35-45 parts of filler, 4-6 parts of organic solid antiwear agent, 4-6 parts of inorganic solid antiwear agent and 5-15 parts of lubricant.
In one embodiment, the base oil is one or more of canola oil, polyethylene glycol, trimethylolpropane oleate, polyol esters, and glycerol.
In one embodiment, the adhesion promoter is a polymer terminated with polar groups and derivatives thereof.
In one embodiment, the tackifier is one or more of a polypropylene carbonate polyol, a polyether polyol, a polycaprolactone polyol, and derivatives thereof.
In one embodiment, the rust inhibitor is one or more of calcium petroleum sulfonate, barium petroleum sulfonate, pentaerythritol monooleate, and octadecylamine oleate.
In one embodiment, the fibers are one or more of short cotton fibers, long cotton fibers, cellulose fibers, animal fibers.
In one embodiment, the filler is one or more of calcium carbonate, barium sulfate, talc, feldspar powder;
in one embodiment, the organic solid antiwear agent is one or more of polytetrafluoroethylene, polymethyl methacrylate, polyurethane, triphenyl phosphorothioate;
in one embodiment, the inorganic antiwear agent: molybdenum disulfide, tungsten disulfide, calcium fluoride, niobium disulfide.
In one embodiment, the lubricant is one or more of lithium-based grease, barium-based grease, lanolin, and vulcanized lard.
The second aim of the invention is to provide a preparation method of the main bearing sealing grease of the shield tunneling machine, which comprises the following steps:
mixing base oil, tackifier, antirust agent and liquid antiwear agent, kneading and stirring, adding fiber, kneading and stirring, adding filler, organic solid antiwear agent, inorganic solid antiwear agent and lubricating grease, and kneading and stirring to obtain the sealing grease.
In one embodiment, the kneading and stirring time is 20 to 60 minutes.
The invention has the beneficial effects that:
the invention combines organic, inorganic and specific liquid antiwear agents, wherein the molecular profile of the organic solid antiwear agent is smooth, has lower friction coefficient, can form a transfer film with the contacted dual surface in the sliding process, thus having good lubricating property, extremely low surface energy, excellent non-tackiness, difficult agglomeration in oil and improved dispersibility and stability of the inorganic solid antiwear agent in products; the liquid antiwear agent is ionic liquid and is adsorbed on the surface of steel in the friction process to form a boundary lubricating film, and the boundary lubricating film has a tribochemical action with the surface of steel at a higher temperature to form a friction-free FePO composition 4 Or FeF 2 The boundary lubricating film with higher bearing capacity and abrasion resistance is formed, so that the friction-reducing and abrasion-resistant effects are effectively achieved, and the abrasion resistance is improved by the cooperation of three abrasion-resistant agents; and has excellent sealing performance.
Detailed Description
In order that the invention may be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. In the description of the present invention, the meaning of "several" means at least one, such as one, two, etc., unless specifically defined otherwise.
The words "preferably," "more preferably," and the like in the present invention refer to embodiments of the invention that may provide certain benefits in some instances. However, other embodiments may be preferred under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values for the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range description features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to include any and all subranges subsumed therein.
All percentages, fractions and ratios are calculated on the total mass of the composition of the invention, unless otherwise indicated. All of the mass of the ingredients listed, unless otherwise indicated, are given to the active substance content and therefore they do not include solvents or by-products that may be included in commercially available materials. The term "mass percent" herein may be represented by the symbol "%". All molecular weights herein are weight average molecular weights expressed in daltons, unless indicated otherwise. All formulations and tests herein take place in an environment of 25 ℃, unless otherwise indicated. The terms "comprising," "including," "containing," "having," or other variations thereof herein are intended to cover a non-closed inclusion, without distinguishing between them. The term "comprising" means that other steps and ingredients may be added that do not affect the end result. The compositions and methods/processes of the present invention comprise, consist of, and consist essentially of the essential elements and limitations described herein, as well as additional or optional ingredients, components, steps, or limitations of any of the embodiments described herein. The terms "efficacy," "performance," "effect," "efficacy" are not differentiated herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The invention provides a main bearing sealing grease of a shield machine, which comprises the following raw material components: 15-20 parts of base oil, 5-15 parts of tackifier, 5-10 parts of antirust agent, 5-10 parts of liquid antiwear agent, 2-6 parts of fiber, 30-50 parts of filler, 4-8 parts of organic solid antiwear agent, 4-8 parts of inorganic solid antiwear agent and 5-20 parts of lubricant.
Preferably, the sealing grease comprises the following raw material components: 18-20 parts of base oil, 8-12 parts of tackifier, 5-8 parts of antirust agent, 5-8 parts of liquid antiwear agent, 2-4 parts of fiber, 35-45 parts of filler, 4-6 parts of organic solid antiwear agent, 4-6 parts of inorganic solid antiwear agent and 5-15 parts of lubricant.
Preferably, the main bearing sealing grease of the shield machine comprises the following raw material components: 20 parts of base oil, 10 parts of tackifier, 5 parts of antirust agent, 5 parts of liquid antiwear agent, 3 parts of fiber, 40 parts of filler, 5 parts of organic solid antiwear agent, 5 parts of inorganic solid antiwear agent and 10 parts of lubricant.
The liquid antiwear agent is one or more of 1-methyl-3-butyl imidazole hexafluorophosphate ionic liquid, 1-butyl-3-methyl imidazole tetrafluoroborate ionic liquid, 1-ethyl-3-methyl imidazolium dicyandiamide salt ionic liquid and 1-ethyl-3-methyl imidazole acetate ionic liquid.
In one embodiment, the base oil is one or more of canola oil, polyethylene glycol, trimethylolpropane oleate, polyol esters, and glycerol. The base oil is polar oil, so that the base oil has good compatibility with the ionic liquid wear-resistant agent, the stability of the sealing grease is improved, and the oil distribution amount is reduced.
In one embodiment, the tackifier is a polymer terminated with a polar group and derivatives thereof, specifically including: one or more of polypropylene carbonate polyols, polyether polyols, polycaprolactone polyols, and derivatives thereof. The tackifier adopts a hydroxyl end-capped related polar tackifier containing polar groups, so that the compatibility of the polar tackifier with polar base oil and liquid wear-resistant agent in a sealing grease system is improved, the storage stability is good, and the oil distribution amount is small.
By combining the tackifier containing polar groups and the base oil, the sealing grease system has good compatibility, good storage stability and small oil distribution.
In one embodiment, the rust inhibitor is one or more of calcium petroleum sulfonate, barium petroleum sulfonate, pentaerythritol monooleate, and octadecylamine oleate.
In one embodiment, the fibers are one or more of short cotton fibers, long cotton fibers, cellulose fibers, animal fibers.
In one embodiment, the filler is one or more of calcium carbonate, barium sulfate, talc, feldspar powder;
in one embodiment, the organic solid antiwear agent is one or more of polytetrafluoroethylene, polymethyl methacrylate, polyurethane, triphenyl phosphorothioate; the molecular profile of each molecule is smooth, has a lower friction factor, and can form a transfer film with the contacted dual surface in the sliding process, so that the lubricant has good lubricating property, has extremely low surface energy, excellent non-tackiness, is not easy to agglomerate in oil, and improves the dispersibility and stability of the solid antiwear agent in products.
In one embodiment, the inorganic antiwear agent: molybdenum disulfide, tungsten disulfide, calcium fluoride, niobium disulfide.
In one embodiment, the lubricant is one or more of lithium-based grease, barium-based grease, lanolin, and vulcanized lard.
The second aim of the invention is to provide a preparation method of the main bearing sealing grease of the shield tunneling machine, which comprises the following steps:
mixing base oil, tackifier, antirust agent and liquid antiwear agent, kneading and stirring, adding fiber, kneading and stirring, adding filler, organic solid antiwear agent, inorganic solid antiwear agent and lubricating grease, and kneading and stirring to obtain the sealing grease.
Before preparation, the tackifier was dried in a forced air oven at a temperature of 70 ℃.
In the preparation process, a double planetary mixer is adopted for kneading, and the materials are discharged after kneading, and the obtained sealed grease sealing bags are stored.
In one embodiment, the kneading and stirring time is 20 to 60 minutes, preferably 30 minutes and 40 minutes.
Materials, reagents and the like used in the examples described below are commercially available unless otherwise specified.
The invention is described in detail below in connection with specific embodiments, which are intended to be illustrative rather than limiting.
Examples 1 to 5
The raw materials of examples 1 to 5 were weighed according to the proportions shown in Table 1.
Table 1 selection and ratio of raw materials in examples 1 to 5
The preparation method comprises the following steps:
the tackifier is put into an electrothermal adjustable blast drying oven, and the temperature is adjusted to 70 ℃ for standby. Base oil, filler, organic solid antiwear agent, inorganic solid antiwear agent, liquid antiwear agent, tackifier, lubricant, antirust agent and fiber are quantitatively weighed according to the formula of each example in Table 1 and placed in a shade for standby.
Adding the base oil, the tackifier, the antirust agent and the liquid antiwear agent into a double planetary mixer for fully kneading and stirring for 30 minutes, and then adding the fibers into the double planetary mixer for fully kneading and stirring for 30 minutes. And finally, adding the filler, the organic solid antiwear agent, the inorganic solid antiwear agent and the lubricant into a double planetary stirrer together, fully kneading and stirring for 40 minutes, discharging to obtain the main bearing sealing grease of the shield machine, and filling into a sealing bag for storage.
Comparative examples 1 to 3
The raw materials of examples 1 to 5 were weighed according to the proportions shown in Table 2.
Table 2 selection and ratio of the respective raw materials of comparative examples 1 to 3
The tackifier is put into an electrothermal adjustable blast drying oven, and the temperature is adjusted to 70 ℃ for standby. The raw materials of base oil, filler, inorganic solid antiwear agent, tackifier, lubricant, antirust agent and the like are weighed according to the proportion of the table 2 and placed in a shade for standby.
Adding the base oil, the tackifier, the antirust agent and the liquid antiwear agent into a double planetary mixer for fully kneading and stirring for 30 minutes, and then adding the fibers into the double planetary mixer for fully kneading and stirring for 30 minutes. And finally, adding the filler, the antiwear agent and the lubricant into a double-planetary stirrer together, fully kneading and stirring for 40 minutes, discharging to obtain the main bearing sealing grease of the shield machine, and filling into a sealing bag for preservation.
Performance testing
The performance test of the main bearing sealing grease of the shield machine obtained in examples 1-5 and comparative examples 1-3 specifically comprises oil distribution test, abrasive spot diameters with loads of 392N and 745N, maximum stripping force, water flow loss under the condition of 0.28MPa and water pressure sealing resistance. Specific criteria and test methods are shown in table 3.
Table 3 performance parameters and reference standard method for main bearing seal grease
The performance of the main bearing sealing greases of the shield machines of examples 1 to 5 and comparative examples 1 to 3 was tested according to the standard method described above, and the results are shown in Table 4.
Table 4 results of performance testing of sealing grease on main bearings of shield machines of examples and comparative examples
According to the detection results, the sealing grease obtained in the examples 1-5 has good wear resistance, small oil distribution, small water flushing loss and small oil distribution, wherein the diameter of the grinding spots is smaller than 0.9mm under the conditions of 745N load and 1h, and the minimum diameter of the grinding spots can be 0.82mm, and the sealing grease is treated for 24h at 100 ℃. The wear resistance of the sealing grease is synergistically increased through the combination of a plurality of wear-resistant agents, and other reagents such as base oil and tackifier are preferably selected according to the types of the wear-resistant agents, so that the oil distribution amount is reduced, and the storage stability is improved.
According to comparative examples 1 to 3, wherein the components and contents in comparative example 1 are the same as those in example 1, the difference is that the organic solid antiwear agent is not included, the abrasive spot diameter is obviously increased according to the performance test result, especially the abrasive spot diameter is obviously increased under high load condition, the maximum stripping force is reduced, and the antifriction performance is reduced, which indicates that the organic solid antiwear agent can effectively increase the antifriction performance of the main bearing sealing grease under high load. The components and contents of comparative example 2 are the same as those of example 2, except that the liquid antiwear agent is not included, the abrasion diameter is increased, the anti-friction performance is reduced, the maximum stripping force is reduced, the water flow flushing amount is increased, and the adhesiveness of the main bearing sealing grease can be improved while the friction performance is improved by the liquid antiwear agent. The components and their contents in comparative example 3 are the same as in example 3 except that the tackifier added is polyisobutylene, which is not terminated with a polar group, and in the sealing grease system, the compatibility of the tackifier polyisobutylene with the liquid antiwear agent is poor, and the tackifier polyisobutylene is easily precipitated, so that the oil yield is increased, and the friction resistance and adhesion are also reduced. Therefore, according to the above examples and comparative examples, it can be obtained that the sealing grease system is an organic unified whole, the raw materials in the system cooperate with each other, the wear resistance of the sealing grease is cooperatively improved through the inherent properties of the reagent and the interaction with other reagents, and meanwhile, the compatibility of the raw materials of the sealing grease is good, and the stability of the system is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (13)
1. The main bearing sealing grease of the shield machine is characterized by comprising the following raw material components: 15-20 parts of base oil, 5-15 parts of tackifier, 5-10 parts of antirust agent, 5-10 parts of liquid antiwear agent, 2-6 parts of fiber, 30-50 parts of filler, 4-8 parts of organic solid antiwear agent, 4-8 parts of inorganic solid antiwear agent and 5-20 parts of lubricant;
the liquid antiwear agent is one or more of 1-methyl-3-butyl imidazole hexafluorophosphate ionic liquid, 1-butyl-3-methyl imidazole tetrafluoroborate ionic liquid, 1-ethyl-3-methyl imidazolium dicyandiamide salt ionic liquid and 1-ethyl-3-methyl imidazole acetate ionic liquid.
2. The main bearing sealing grease for a shield machine according to claim 1, wherein the main bearing sealing grease for a shield machine comprises the following raw material components: 18-20 parts of base oil, 8-12 parts of tackifier, 5-8 parts of antirust agent, 5-8 parts of liquid antiwear agent, 2-4 parts of fiber, 35-45 parts of filler, 4-6 parts of organic solid antiwear agent, 4-6 parts of inorganic solid antiwear agent and 5-15 parts of lubricant.
3. The main bearing sealing grease for a shield machine according to any one of claims 1-2, wherein the base oil is one or more of rapeseed oil, polyethylene glycol, trimethylolpropane oleate, polyol esters, and glycerin.
4. The main bearing sealing grease for a shield machine according to any one of claims 1-2, wherein the tackifier is a polymer terminated with a polar group and derivatives thereof.
5. The main bearing sealing grease for a shield machine according to any one of claims 1-2, wherein the tackifier is one or more of a polypropylene carbonate polyol, a polyether polyol, a polycaprolactone polyol, and derivatives thereof.
6. The main bearing sealing grease for a shield machine according to any one of claims 1-2, wherein the rust inhibitor is one or more of calcium petroleum sulfonate, barium petroleum sulfonate, pentaerythritol monooleate, and octadecylamine oleate.
7. The main bearing sealing grease for a shield machine according to any one of claims 1-2, wherein the fibers are one or more of short cotton fibers, long cotton fibers, cellulose fibers, and animal fibers.
8. The main bearing sealing grease for a shield machine according to any one of claims 1-2, wherein the filler is one or more of calcium carbonate, barium sulfate, talc powder, and feldspar powder.
9. The main bearing sealing grease for a shield machine according to any one of claims 1-2, wherein the organic solid antiwear agent is one or more of polytetrafluoroethylene, polymethyl methacrylate, polyurethane, and triphenyl phosphorothioate.
10. The main bearing sealing grease for a shield machine according to any one of claims 1-2, wherein the inorganic antiwear agent is one or more of molybdenum disulfide, tungsten disulfide, calcium fluoride, niobium disulfide.
11. The main bearing sealing grease for a shield machine according to any one of claims 1-2, wherein the lubricant is one or more of lithium-based grease, barium-based grease, lanolin, and vulcanized lard.
12. The method for preparing the main bearing sealing grease of the shield machine according to any one of claims 1 to 11, which is characterized by comprising the following steps:
mixing base oil, tackifier, antirust agent and liquid antiwear agent, kneading and stirring, adding fiber, kneading and stirring, adding filler, organic solid antiwear agent, inorganic solid antiwear agent and lubricating grease, and kneading and stirring to obtain the sealing grease.
13. The method for preparing the main bearing sealing grease of the shield tunneling machine according to claim 12, wherein the kneading and stirring time is 20-60min.
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| CN202211640188.7A CN116004306B (en) | 2022-12-20 | 2022-12-20 | Main bearing sealing grease of shield tunneling machine and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005154755A (en) * | 2003-11-05 | 2005-06-16 | Kyodo Yushi Co Ltd | Semi-solid lubricant composition |
| DE102008017144A1 (en) * | 2008-04-04 | 2009-10-15 | KLüBER LUBRICATION MüNCHEN KG | Grease composition based on ionic liquids |
| CN102775352A (en) * | 2012-08-03 | 2012-11-14 | 山东源根石油化工有限公司 | Cis-12 hydroxy octadecenoic acid-3-methyl-imidazole hexafluorophosphate ionic liquid and four-stroke engine lubricating oil composition containing same |
| CN102776053A (en) * | 2012-08-03 | 2012-11-14 | 山东源根石油化工有限公司 | Composite extreme pressure anti-wear agent and total-synthesis anti-wear hydraulic oil containing same |
| CN107312588A (en) * | 2017-05-27 | 2017-11-03 | 中昊(大连)化工研究设计院有限公司 | A kind of high stability main shaft seals of shield machine grease and preparation method thereof |
| CN107903285A (en) * | 2017-11-24 | 2018-04-13 | 中国科学院兰州化学物理研究所 | A kind of neutral phosphate ionic liquid and its application |
| CN109135882A (en) * | 2017-06-16 | 2019-01-04 | 上海滏兴工贸有限公司 | A kind of main shaft seals of shield machine grease and preparation method thereof |
-
2022
- 2022-12-20 CN CN202211640188.7A patent/CN116004306B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005154755A (en) * | 2003-11-05 | 2005-06-16 | Kyodo Yushi Co Ltd | Semi-solid lubricant composition |
| DE102008017144A1 (en) * | 2008-04-04 | 2009-10-15 | KLüBER LUBRICATION MüNCHEN KG | Grease composition based on ionic liquids |
| CN102775352A (en) * | 2012-08-03 | 2012-11-14 | 山东源根石油化工有限公司 | Cis-12 hydroxy octadecenoic acid-3-methyl-imidazole hexafluorophosphate ionic liquid and four-stroke engine lubricating oil composition containing same |
| CN102776053A (en) * | 2012-08-03 | 2012-11-14 | 山东源根石油化工有限公司 | Composite extreme pressure anti-wear agent and total-synthesis anti-wear hydraulic oil containing same |
| CN107312588A (en) * | 2017-05-27 | 2017-11-03 | 中昊(大连)化工研究设计院有限公司 | A kind of high stability main shaft seals of shield machine grease and preparation method thereof |
| CN109135882A (en) * | 2017-06-16 | 2019-01-04 | 上海滏兴工贸有限公司 | A kind of main shaft seals of shield machine grease and preparation method thereof |
| CN107903285A (en) * | 2017-11-24 | 2018-04-13 | 中国科学院兰州化学物理研究所 | A kind of neutral phosphate ionic liquid and its application |
Non-Patent Citations (1)
| Title |
|---|
| 钟寅杰;李志鹏;任天辉;: "二异辛基二硫代磷酸酯季铵盐离子液体在基础油中的摩擦学研究", 润滑与密封, no. 07 * |
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