CN118275502A - Nuclear power plant rotating equipment bearing grease lubrication test device - Google Patents
Nuclear power plant rotating equipment bearing grease lubrication test device Download PDFInfo
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- CN118275502A CN118275502A CN202211707003.XA CN202211707003A CN118275502A CN 118275502 A CN118275502 A CN 118275502A CN 202211707003 A CN202211707003 A CN 202211707003A CN 118275502 A CN118275502 A CN 118275502A
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- rotating equipment
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- equipment bearing
- lubrication
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- 238000005461 lubrication Methods 0.000 title claims abstract description 54
- 239000004519 grease Substances 0.000 title claims abstract description 52
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000001050 lubricating effect Effects 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 239000000523 sample Substances 0.000 claims description 22
- 230000008859 change Effects 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 11
- 238000012806 monitoring device Methods 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000498 cooling water Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011835 investigation Methods 0.000 abstract description 3
- 238000012795 verification Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/30—Oils, i.e. hydrocarbon liquids for lubricating properties
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a bearing grease lubrication test device for rotary equipment of a nuclear power plant, which comprises a support system (4), a power system (1), a loading system (2) and a lubrication system (3), wherein the power system (1), the loading system (2) and the lubrication system (3) are arranged on the support system (4), the detection system (5) is arranged on the lubrication system (3), and the lubrication system (3) comprises a rotary equipment bearing; the power system (1) provides driving force for a rotating equipment bearing, and the loading system (2) applies radial load to the rotating equipment bearing; and the detection system (5) judges the lubrication effect of the bearing of the rotating equipment corresponding to the addition amount of the lubricating grease. According to the bearing grease lubrication test device for the rotary equipment of the nuclear power plant, disclosed by the invention, the actual working condition environments of the closed cooling water pump and the safety water pump for the plant are completely simulated to carry out test verification or investigation analysis, so that the blind disassembly and assembly workload of the precision parts of the key sensitive equipment and the unknown safety risk introduced by a unit are reduced.
Description
Technical Field
The invention relates to the technical field of nuclear power maintenance, in particular to a bearing grease lubrication test device for rotary equipment of a nuclear power plant.
Background
According to the daily work order defect rate statistical analysis, the bearing temperature of the rotating equipment such as the closed cooling water pump, the safety water pump, the condensate pump, the seawater circulating pump and the like of the No. 3 unit and the No. 4 unit of the Qin two-factory is higher and the probability of severe fluctuation is higher. The phenomenon has strong correlation with the adding amount of the lubricating grease in the bearing chamber, if the adding amount of the lubricating grease is too large, the heat of a bearing fan is poor, the overheating failure of the lubricating grease is accelerated, the lubricating performance is lost, and the bearing is finally damaged; if the addition amount of the lubricating grease is too small, an oil film cannot be established between the rolling bodies of the bearing and the retainer as well as between the inner ring and the outer ring, and the metal direct friction heating bearing is rapidly damaged. However, because the bearing chamber is in a fully-closed structure, the working state of the rolling body of the internal bearing and the microscopic distribution condition of lubricating grease cannot be visually displayed, so that the lubrication state of the bearing cannot be accurately judged, and accurate and effective treatment measures cannot be formulated, thereby becoming a professional technical blind area for urgent need of equipment reliability management. With the increasing improvement of equipment reliability management levels represented by high-end industries such as nuclear power, aviation and the like, higher demands are put forward for the research and exploration of the fine application of the bearing lubrication technology and the microscopic mechanism thereof, the microscopic mechanism and application research work of the conventional rolling bearing grease lubrication technology cannot meet the fine management demands, and a plurality of fuzzy zones still exist in relevant technical standards and application guidance.
Disclosure of Invention
Based on the above, it is necessary to provide a device for testing bearing grease lubrication of rotary equipment in a nuclear power plant, which completely simulates the actual working condition environments of a closed cooling water pump and a water pump for a safety factory to perform test verification or investigation analysis, reduces the blind disassembly workload of precision parts of key sensitive equipment and the unknown safety risk introduced by a unit, and has stronger use value and wide application market for a pressurized water reactor nuclear power unit generally.
In order to achieve the above object, the present invention provides the following technical solutions:
The bearing grease lubrication test device for the rotary equipment of the nuclear power plant comprises a power system, a loading system, a lubrication system, a support system and a detection system, wherein the power system, the loading system and the lubrication system are arranged on the support system; the power system provides driving force for the rotating equipment bearing, and the loading system applies adjustable radial load to the rotating equipment bearing; the detection system monitors and analyzes the running state of the rotating equipment bearing and the establishment condition of a lubricating oil film between the rolling bodies and the inner ring and the outer ring in the rotating equipment bearing, so that the lubricating effect of the rotating equipment bearing corresponding to the addition amount of the lubricating grease is judged.
Further, the power system and the lubrication system are connected with each other through a shaft, the loading system and the shaft are connected with each other through bearings, and the power system, the loading system and the lubrication system are respectively connected with the supporting system through bolts.
Further, the power system is a variable frequency driving motor and provides driving force for the rotating equipment bearing, so that the design rotating speed range requirements of the rotating equipment bearings of different types are met.
Further, the radial load of the rotating equipment bearings is adjusted by the loading system adjusting and applying a suitable external load.
Further, the loading system further comprises a torque sensor which is arranged on the rotor of the rotating equipment bearing, and the load change condition of the rotating equipment bearing is monitored and recorded.
Further, the lubrication system further comprises a rotating equipment bearing housing, the rotating equipment bearing being mounted within the rotating equipment bearing housing; the end cover of the bearing box of the rotating equipment is made of transparent materials, so that the distribution change condition of lubricating grease in the bearing box of the rotating equipment can be observed conveniently.
Further, the bearing box of the rotating equipment is of a detachable structure, so that the disassembly and assembly test of the bearing of the rotating equipment is facilitated; the bearing box of the rotary equipment is provided with a lubricating grease blowing hole and a grease discharging hole, and excessive grease is discharged in a blowing mode, so that the grease adding amount is controlled.
Further, the detection system comprises a sound probe, a vibration probe, a temperature probe and a conductivity monitoring device, wherein the sound probe, the vibration probe and the temperature probe are arranged in a bearing box of the rotating equipment, and the running condition of the bearing of the rotating equipment is respectively monitored and analyzed by collecting data of sound, vibration and temperature during the running of the bearing of the rotating equipment; the conductivity monitoring device is arranged on the surface of the bearing box of the rotating equipment, and indirectly reflects the establishment condition of a lubricating oil film between the rolling body and the inner ring and the outer ring in the bearing of the rotating equipment by measuring the conductivity change in the bearing box of the rotating equipment.
Further, the conductivity monitoring device is designed according to structural forms of the rotating equipment bearing and the rotating equipment bearing box, and two probes are installed at two ends of the rotating equipment bearing box, so that conductivity change inside the rotating equipment bearing box is detected.
The beneficial technical effects of the invention are as follows:
The bearing grease lubrication test device for the rotating equipment of the nuclear power plant has the advantages of being simple in structure, integrating modern technologies such as electric drive, fluid drive and instrument control, properly adjusting parameters such as rotating speed and load of the test device according to actual demands, completely simulating actual operation working conditions of a closed cooling water pump and a water pump for a safety plant, having the remarkable characteristics of high integration level, high reliability, convenience in use and the like, forming a set of technical standards for reference of actual work on site through data accumulation and system analysis, promoting the improvement of the reliability management of the grease lubrication bearing of the rotating equipment and the establishment of a fault evaluation mechanism, qualitatively evaluating and quantitatively analyzing the development degree of faults, avoiding blind disassembly work and visual unreachable abnormal conditions in traditional corrective maintenance activities, reducing the working intensity and working difficulty of field personnel, improving the prejudgement and accuracy of preventive maintenance work and corrective maintenance work, and guaranteeing the safety level and economic benefit of the nuclear power plant.
Drawings
FIG. 1 is a schematic diagram of a bearing grease lubrication test device for a rotary device of a nuclear power plant.
In the figure, 1, a power system; 2. loading a system; 3. a lubrication system; 4. a support system; 5. a detection system.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully understood from the accompanying drawings and the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "left end", "right end", "above", "below", "outside", "inside", etc. are directions or positional relationships based on the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention.
Example 1
Referring to fig. 1, the invention provides a grease lubrication test device for a rotary equipment bearing of a nuclear power plant, which comprises a power system 1, a loading system 2, a lubrication system 3, a support system 4 and a detection system 5, wherein the power system 1, the loading system 2 and the lubrication system 3 are arranged on the support system 4, the detection system 5 is arranged on the lubrication system 3, and the lubrication system 3 comprises a rotary equipment bearing; the power system 1 provides driving force for a rotating equipment bearing, and the loading system 2 applies adjustable radial load for the rotating equipment bearing; the detection system 5 monitors and analyzes the running state of the rotating equipment bearing and the establishment condition of a lubricating oil film between the rolling bodies and the inner ring and the outer ring in the rotating equipment bearing, so that the lubricating effect of the rotating equipment bearing corresponding to the addition amount of the lubricating grease is judged.
Further, the power system 1 and the lubrication system 3 are connected with each other through a shaft, the loading system 2 and the shaft are connected with each other through a bearing, and the power system 1, the loading system 2 and the lubrication system 3 are respectively connected with the support system 4 through bolts.
Further, the power system 1 is a variable frequency driving motor, provides driving force for the rotating equipment bearing, and meets the design rotating speed range requirements of the rotating equipment bearings of different types.
Further, the radial load of the rotating equipment bearings is adjusted by the loading system 2 adjusting and applying a suitable external load.
Further, the loading system 2 further comprises a torque sensor, wherein the torque sensor is mounted on a rotor of the rotating equipment bearing, and the load change condition of the rotating equipment bearing is monitored and recorded.
Further, the lubrication system 3 further comprises a rotating equipment bearing housing, in which the rotating equipment bearing is mounted; the end cover of the bearing box of the rotating equipment is made of transparent materials, so that the distribution change condition of lubricating grease in the bearing box of the rotating equipment can be observed conveniently.
Further, the bearing box of the rotating equipment is of a detachable structure, so that the disassembly and assembly test of the bearing of the rotating equipment is facilitated; the bearing box of the rotary equipment is provided with a lubricating grease blowing hole and a grease discharging hole, and excessive grease is discharged in a blowing mode, so that the grease adding amount is controlled.
Further, the rotating equipment bearing box is fixedly installed through bolt threads.
Further, the detection system 5 comprises a sound probe, a vibration probe, a temperature probe and a conductivity monitoring device, wherein the sound probe, the vibration probe and the temperature probe are arranged in a bearing box of the rotating equipment, and the running condition of the bearing of the rotating equipment is respectively monitored and analyzed by collecting data of sound, vibration and temperature during the running of the bearing of the rotating equipment; the conductivity monitoring device is arranged on the surface of the bearing box of the rotating equipment, and indirectly reflects the establishment condition of a lubricating oil film between the rolling body and the inner ring and the outer ring in the bearing of the rotating equipment by measuring the conductivity change in the bearing box of the rotating equipment.
Further, the conductivity monitoring device is designed according to structural forms of the rotating equipment bearing and the rotating equipment bearing box, and two probes are installed at two ends of the rotating equipment bearing box, so that conductivity change inside the rotating equipment bearing box is detected.
When the bearing grease lubrication test device for the nuclear power plant rotating equipment is used for carrying out bearing grease lubrication test on the nuclear power plant rotating equipment, the method comprises the following steps:
1. The power of the variable frequency driving motor is regulated to provide driving force for the rotating equipment bearing, so that the rotating speed of the rotating equipment bearing is regulated; adjusting a radial bearing of the rotating equipment bearing through the loading system 2, and matching a proper load according to the design load of the rotating equipment bearing;
2. The lubricating grease is added into the lubricating system 3, under the condition that the working conditions such as the rotating speed and the load of the rotating equipment bearing are stable, different amounts of the lubricating grease are added into the rotating equipment bearing box in stages, the distribution change condition of the lubricating grease in the rotating equipment bearing box is observed through an end cover of the rotating equipment bearing box, the running state of the rotating equipment bearing is continuously monitored and analyzed through sound, vibration and temperature probes arranged on the rotating equipment bearing box, meanwhile, the establishment condition of a lubricating oil film between a rolling body and an inner ring and between the rolling body and an outer ring in the rotating equipment bearing is indirectly reflected through the monitoring of the conductivity change of a conductivity monitoring device, the lubricating effect of the bearing corresponding to different lubricating grease addition amounts is further clarified, a set of technical standard for reference of actual working on site is formed through data accumulation and system analysis, and related emergency treatment plans aiming at the problems such as high temperature, abnormal fluctuation and the like of the grease lubrication 6316 type deep groove ball bearing and 31320 type tapered roller bearing are formed, and the establishment of a fault evaluation mechanism of the reliability management of the rotating equipment grease lubrication bearing is promoted.
According to the bearing grease lubrication test device for the rotary equipment of the nuclear power plant, the structural working conditions and acting force differences of the horizontal rotary equipment and the vertical rotary equipment are considered, test verification or investigation analysis is carried out by completely simulating the actual working condition environments of the closed cooling water pump and the water pump for the safety factory, blind disassembly and assembly workload of precision parts of key sensitive equipment and unknown safety risks introduced by the unit are reduced, and the bearing grease lubrication test device has a strong use value and a wide application market for a pressurized water reactor nuclear power unit.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby 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 (9)
1. The bearing grease lubrication test device for the rotary equipment of the nuclear power plant is characterized by comprising a power system (1), a loading system (2), a lubrication system (3), a supporting system (4) and a detection system (5), wherein the power system (1), the loading system (2) and the lubrication system (3) are arranged on the supporting system (4), the detection system (5) is arranged on the lubrication system (3), and the lubrication system (3) comprises a rotary equipment bearing; the power system (1) provides driving force for the rotating equipment bearing, and the loading system (2) applies adjustable radial load to the rotating equipment bearing; the detection system (5) monitors and analyzes the running state of the rotating equipment bearing and the establishment condition of a lubricating oil film between the rolling bodies in the rotating equipment bearing and the inner ring and the outer ring, so that the lubricating effect of the rotating equipment bearing corresponding to the addition amount of the lubricating grease is judged.
2. The bearing grease lubrication test device for the rotary equipment of the nuclear power plant according to claim 1, wherein the power system (1) and the lubrication system (3) are connected with each other through a shaft, the loading system (2) and the shaft are connected with each other through bearings, and the power system (1), the loading system (2) and the lubrication system (3) are respectively connected with the supporting system (4) through bolts.
3. The nuclear power plant rotating equipment bearing grease lubrication test device according to claim 1, wherein the power system (1) is a variable frequency driving motor, and provides driving force for the rotating equipment bearing.
4. The nuclear power plant rotating equipment bearing grease lubrication test apparatus according to claim 1, characterized in that the radial load of the rotating equipment bearing is adjusted by means of a loading system (2) and applying a suitable external load.
5. The nuclear power plant rotating equipment bearing grease lubrication test device according to claim 1, wherein the loading system (2) is provided with a torque sensor, and the torque sensor is installed on a rotor of the rotating equipment bearing and is used for monitoring and recording the load change condition of the rotating equipment bearing.
6. The nuclear power plant rotating equipment bearing grease lubrication test apparatus according to claim 1, wherein the lubrication system (3) further comprises a rotating equipment bearing housing in which the rotating equipment bearing is mounted; the end cover of the bearing box of the rotating equipment is made of transparent materials.
7. The nuclear power plant rotating equipment bearing grease lubrication test device according to claim 6, wherein the rotating equipment bearing housing is of a detachable structure; and the bearing box of the rotating equipment is provided with a lubricating grease blowing hole and a grease discharging hole.
8. The nuclear power plant rotating equipment bearing grease lubrication test device according to claim 6, wherein the detection system (5) comprises a sound probe, a vibration probe, a temperature probe and a conductivity monitoring device, the sound probe, the vibration probe and the temperature probe are installed in a rotating equipment bearing box, and the operation conditions of the rotating equipment bearing are respectively monitored and analyzed by collecting data of sound, vibration and temperature during the operation of the rotating equipment bearing; the conductivity monitoring device is arranged on the surface of the bearing box of the rotating equipment, and indirectly reflects the establishment condition of a lubricating oil film between the rolling body and the inner ring and the outer ring in the bearing of the rotating equipment by measuring the conductivity change in the bearing box of the rotating equipment.
9. The nuclear power plant rotating equipment bearing grease lubrication test device according to claim 8, wherein the conductivity monitoring device is designed according to the structural form of a rotating equipment bearing and a rotating equipment bearing box, and two probes are installed at two ends of the rotating equipment bearing box, so that conductivity change inside the rotating equipment bearing box is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211707003.XA CN118275502A (en) | 2022-12-29 | 2022-12-29 | Nuclear power plant rotating equipment bearing grease lubrication test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211707003.XA CN118275502A (en) | 2022-12-29 | 2022-12-29 | Nuclear power plant rotating equipment bearing grease lubrication test device |
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| Publication Number | Publication Date |
|---|---|
| CN118275502A true CN118275502A (en) | 2024-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211707003.XA Pending CN118275502A (en) | 2022-12-29 | 2022-12-29 | Nuclear power plant rotating equipment bearing grease lubrication test device |
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| Country | Link |
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| CN (1) | CN118275502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119124986A (en) * | 2024-10-17 | 2024-12-13 | 中国科学院兰州化学物理研究所 | A grease aging simulation test device under thermal field-force field coupling and its application |
-
2022
- 2022-12-29 CN CN202211707003.XA patent/CN118275502A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119124986A (en) * | 2024-10-17 | 2024-12-13 | 中国科学院兰州化学物理研究所 | A grease aging simulation test device under thermal field-force field coupling and its application |
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