CN102563328A - Monitoring method of large particle metal abrasive dust in machine lubrication system - Google Patents
Monitoring method of large particle metal abrasive dust in machine lubrication system Download PDFInfo
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- CN102563328A CN102563328A CN2012100353517A CN201210035351A CN102563328A CN 102563328 A CN102563328 A CN 102563328A CN 2012100353517 A CN2012100353517 A CN 2012100353517A CN 201210035351 A CN201210035351 A CN 201210035351A CN 102563328 A CN102563328 A CN 102563328A
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- abrasive dust
- large particle
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- metal filings
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- 239000002245 particle Substances 0.000 title claims abstract description 80
- 239000000428 dust Substances 0.000 title claims abstract description 75
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 67
- 239000002184 metal Substances 0.000 title claims abstract description 66
- 238000012544 monitoring process Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005461 lubrication Methods 0.000 title claims abstract description 21
- 239000000126 substance Substances 0.000 claims abstract description 36
- 238000004876 x-ray fluorescence Methods 0.000 claims abstract description 31
- 238000001228 spectrum Methods 0.000 claims abstract description 16
- 239000006185 dispersion Substances 0.000 claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 32
- 239000003921 oil Substances 0.000 claims description 31
- 238000005406 washing Methods 0.000 claims description 31
- 239000012530 fluid Substances 0.000 claims description 25
- 239000002828 fuel tank Substances 0.000 claims description 22
- 238000004140 cleaning Methods 0.000 claims description 20
- 239000010705 motor oil Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 7
- 238000012417 linear regression Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract 2
- 239000012528 membrane Substances 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention discloses a monitoring method of large particle metal abrasive dusts in a machine lubrication system. The method is realized by using a machine lubrication oil filter element abrasive dust detection device and an energy chromatic dispersion X-ray fluorescence spectrometer, and the method comprises the following steps: an abrasive dust membrane with large particle metal abrasive dusts is manufactured by using the machine lubrication oil filter element abrasive dust detection device; the chemical components and mass distribution of the large particle metal abrasive dusts on the abrasive dust membrane are analyzed by use of the energy chromatic dispersion X-ray fluorescence spectrometer, so as to obtain X-ray fluorescence spectrum data; and a monitoring threshold value of the large particle metal abrasive dusts is set according to the X-ray fluorescence spectrum data, and the monitoring threshold value is revised along increase of the X-ray fluorescence spectrum data dynamically. According to the invention, chemical components, mass distribution and change trend of the large particle metal abrasive dusts can be monitored, and accordingly the monitoring threshold value can be set so as to monitor the large particle metal abrasive dusts in the machine lubrication system and improve the ability in forecasting abnormal machine abrasion faults.
Description
Technical field
The present invention relates to the monitoring method of large particle metal filings in a kind of machine lubrication system; Particularly a kind of monitoring method according to large particle metal filings in the machine lubrication system of large particle metal filings chemical composition and mass distribution and variation tendency acquisition monitoring threshold value thereof belongs to equipment attrition condition monitoring technical field.
Background technique
The wearing and tearing class fault of main both at home and abroad at present utilization lubricant oil Atomic Emission Spectral Analysis technology monitoring machine.But Atomic Emission Spectrometer AES can only be measured the metal filings that is suspended in the fluid less than 10 microns; And the large particle metal filings greater than 25 microns is arranged on the filter intercepting and capturing in the machine lubrication system in the fluid.And the large particle metal filings of 25-200 micrometer range be by surface of friction pair peel off, violent skimming wear and shear reason such as wearing and tearing and produce, can directly reflect machine inordinate wear fault message.Therefore, the single lubricant oil atomic emission spectrum detecting method that adopts at present can't be monitored machine large particle metal filings, can not satisfy the requirement of judging, predict machine inordinate wear fault with multi-parameter.
Application number is 201010179917.4; Denomination of invention is that the application for a patent for invention of engine oil filter element abrasive dust detector discloses the large particle metal filings detecting method in a kind of engine oil filter element abrasive dust detector and the filter core; Though the device and method in this patent application has been realized automatic cleaning, abrasive dust size and quantitative analysis and abrasive dust system film to filter element; But only can monitor, analyze, can not monitor and analyze the chemical composition and the mass distribution of large particle metal filings in the filter element to the quantity and the Size Distribution of large particle metal filings in the filter core.How monitoring large particle metal filings chemical composition and mass distribution and variation tendency thereof in the filter core, is the difficult problem that the present technique field needs to be resolved hurrily.
Summary of the invention
In view of the foregoing; The object of the present invention is to provide the monitoring method of large particle metal filings in the machine lubrication system that a kind of chemical composition and mass distribution according to the large particle metal filings obtain the monitoring threshold value, to improve the prediction ability of machine inordinate wear fault.
For realizing above-mentioned purpose, the present invention adopts following technological scheme:
The monitoring method of large particle metal filings in a kind of machine lubrication system; Utilize engine oil filter element abrasive dust detector and energy-dispersion X-ray fluorescence spectrometer to realize that this engine oil filter element abrasive dust detector comprises filter core washing bucket, abrasive dust film applicator, fuel tank and control system, is provided with the filter core fitting seat in the filter core washing bucket; Filter core washing bucket downside is provided with the pulse gassing valve; Be provided with the miillpore filter mounting base that is used to install the miillpore filter diaphragm in the abrasive dust film applicator, the abrasive dust film applicator is provided with sealing cylinder and telescopic cylinder, and the fluid ingress of fuel tank is provided with oil stream signal-transmitting machine; It is characterized in that this monitoring method comprises:
1) makes the abrasive dust diaphragm that carries the large particle metal filings through said engine oil filter element abrasive dust detector;
2) utilize said energy-dispersion X-ray fluorescence spectrometer to confirm the chemical composition and the mass distribution of large particle metal filings on the said abrasive dust diaphragm, and form the X-ray fluorescence spectra data;
3), confirm the monitoring threshold value of large particle metal filings according to said X-ray fluorescence spectra data.
Further:
Said step 1) comprises:
(11) open said filter core washing bucket, oil filter element to be detected is installed in said filter core fitting seat, seal said filter core washing bucket again;
(12) release the said miillpore filter mounting base of said abrasive dust film applicator through said telescopic cylinder, the miillpore filter diaphragm is installed on the said miillpore filter mounting base, draw back said miillpore filter mounting base through said telescopic cylinder again;
(13) filter core washing bucket cleaning process: said pulse gassing valve blows out the pulse backblowing air-flow to the oil filter element that is installed on the said filter core fitting seat, and the abrasive dust particle on the filter core is deviate from; In said filter core washing bucket, inject and clean fluid, clean the abrasive dust particle that blows out;
(14) abrasive dust film-forming process: the wash oil flow via hole diameter that contains the abrasive dust particle is 25 microns a miillpore filter diaphragm, and contained abrasive dust particle is collected the system film by the miillpore filter diaphragm;
(15) clean fluid and flow back to fuel tank through oil stream signal-transmitting machine; Said oil stream signal-transmitting machine detects cleaning fluid and whether all gets into fuel tank; After cleaning the said fuel tank of the whole entering of fluid, said oil stream signal-transmitting machine sends the said fuel tank sealing of SC sigmal control fluid and enters the mouth, and the gas in the pipeline is discharged then again;
(16) release the said miillpore filter mounting base of said abrasive dust film applicator through said telescopic cylinder, the miillpore filter diaphragm is taken out, draw back said miillpore filter mounting base through said telescopic cylinder again;
(17) open said filter core washing bucket, the oil filter element after to be detected is taken out, seal said filter core washing bucket again.
Said step 2) comprising:
(21) function software and the standard substance that use energy-dispersion X-ray fluorescence spectrometer to carry are demarcated instrument;
(22) use energy-dispersion X-ray fluorescence spectrometer to confirm each chemical composition and the mass percent thereof of large particle metal filings on the abrasive dust diaphragm, and draw the change trend curve of each chemical composition element mass percent with the operating time.
Said step 3) comprises:
(31) curve that said each chemical composition element mass percent was changed with the operating time carries out simple linear regression analysis according to formula (1), draws standard deviation sigma, and confirms each chemical composition element mass percent and the linear dependence of operating time;
Y＝A+B*X (1)
Wherein, A and B are the linear regression constants;
(32) confirm the monitoring warning value of each chemical composition element mass percent in the large particle metal filings according to formula (2), and draw monitoring warning curve;
Y＝(A+B*X)+2σ (2)
(33) confirm the monitoring exceptional value of each chemical composition element mass percent of large particle metal filings according to formula (3), and draw the monitoring abnormal curve.
Y＝(A+B*X)+3σ (3)
Preferable, along with the increase of said X-ray fluorescence spectra data, said monitoring threshold value is dynamically revised.
The invention has the beneficial effects as follows:
Monitoring method through large particle metal filings in the machine lubrication system disclosed by the invention; Can realize the analysis of automatic cleaning, large particle metal filings system film and metal filings chemical composition element mass percent and variation tendency thereof to filter element; And formulate warning value and exceptional value etc. in view of the above and monitor threshold values; With the large particle metal filings in the monitoring machine lubrication system, improve the prediction ability of machine inordinate wear fault.
Description of drawings
Fig. 1 is the schematic representation of engine oil filter element abrasive dust detector;
Fig. 2 is a monitoring method flow chart of the present invention;
Fig. 3 be in the specific embodiment in the large particle metal filings Fe element mass percent change trend curve and the monitoring threshold value schematic representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Fig. 2 is the monitoring method flow chart of large particle metal filings in the machine lubrication system disclosed by the invention.As shown in the figure, monitoring method concrete steps of the present invention are:
Step 1), make the abrasive dust diaphragm carry the large particle metal filings through engine oil filter element abrasive dust detector;
Fig. 1 is the schematic representation of engine oil filter element abrasive dust detector.As shown in the figure, this device comprises: filter core washing bucket 1, abrasive dust film applicator 2, fuel tank 3, control system 4 and noresidue pneumatic valve 5 etc.Said filter core washing bucket 1, abrasive dust film applicator 2 and fuel tank 3 are linked in sequence successively through transport pipe and form a circulatory system, under the control of control system 4, carry out united and coordinating work.In filter core washing bucket 1, be provided with the filter core fitting seat, in order to oil filter element to be detected to be installed, the downside of filter core washing bucket 1 is provided with the pulse gassing valve, in order to blow out the pulse backblowing air-flow to the oil filter element that is installed on the filter core fitting seat; Abrasive dust film applicator 2 is by two sealing covers up and down and be folded in two miillpore filter mounting base between the sealing cover and constitute, and this miillpore filter mounting base also is provided with sealing cylinder and telescopic cylinder in order to the miillpore filter diaphragm to be installed on the abrasive dust film applicator 2; The fluid ingress of fuel tank 3 is provided with oil stream signal-transmitting machine 6; Also be provided with accurate filter 7 between filter core washing bucket 1 and the fuel tank 3, so that the cleaning fluid that is flowed to filter core washing bucket 1 by fuel tank 3 is carried out fine filtering.
Oil filter element to be detected at first is placed in the filter core washing bucket 1, through cleaning fluid and pulse backblowing gasflow clean-up, the abrasive dust particle on the filter element is sneaked in the cleaning fluid.This cleaning fluid that contains the abrasive dust particle filters through contained abrasive dust particle in 2 pairs of cleanings of abrasive dust film applicator fluid, and processes the miillpore filter diaphragm that has the abrasive dust particle through abrasive dust film applicator 2, uses in order to subsequent analysis.Final wash oil flow through filtration is back in the fuel tank 3.
Wherein, the concrete grammar that the automatic cleaning of engine oil filter element, the collection of large particle metal filings and abrasive dust are made film automatically is:
(11) open the filter core washing bucket, oil filter element to be detected is installed in the filter core fitting seat, seal the filter core washing bucket again;
(12) through the miillpore filter mounting base of telescopic cylinder release abrasive dust film applicator, the miillpore filter diaphragm is installed on this miillpore filter mounting base, draws back the miillpore filter mounting base through telescopic cylinder again;
(13) filter core washing bucket cleaning process: the pulse gassing valve blows out the pulse backblowing air-flow to the oil filter element that is installed on the filter core fitting seat, and the abrasive dust particle on the filter core is deviate from; In the filter core washing bucket, inject and clean fluid, clean the abrasive dust particle that blows out;
(14) abrasive dust film-forming process: the wash oil flow via hole diameter that contains the abrasive dust particle is 25 microns a miillpore filter diaphragm, and contained abrasive dust particle is collected the system film by the miillpore filter diaphragm;
(15) clean fluid and flow back to fuel tank through oil stream signal-transmitting machine; This oil stream signal-transmitting machine detects cleaning fluid and whether all gets into fuel tank; After cleaning fluid all got into fuel tank, oil stream signal-transmitting machine sent SC sigmal control fuel tank sealing fluid inlet, the gas in the pipeline is discharged then again;
(16) through the miillpore filter mounting base of telescopic cylinder release abrasive dust film applicator, the miillpore filter diaphragm is taken out, draw back the miillpore filter mounting base through telescopic cylinder again;
(17) open the filter core washing bucket, the oil filter element after to be detected is taken out, seal the filter core washing bucket again.
Through said process, utilize engine oil filter element abrasive dust detector can realize the automatic cleaning of oil filter element, replaced manual cleaning; Simultaneously the large particle metal filings that washes down in the filter core is collected and process the abrasive dust diaphragm, use in order to subsequent analysis.
Step 2), utilize energy-dispersion X-ray fluorescence spectrometer to confirm large particle metal filings chemical composition and mass distribution and variation tendency thereof on the abrasive dust diaphragm, and form the X-ray fluorescence spectra data;
This step specifically comprises:
(21) function software and the standard substance that use energy-dispersion X-ray fluorescence spectrometer to carry are demarcated instrument; Main demarcation metallic element is Fe, Al, Cu, Ag, Ni, Cr, Ti etc.;
(22) use energy-dispersion X-ray fluorescence spectrometer to confirm each chemical composition and the mass percent thereof of large particle metal filings on the abrasive dust diaphragm, and draw the change trend curve of each chemical composition element mass percent with the operating time.
Step 3), according to step 2) in the X-ray fluorescence spectra data that draw, confirm the monitoring threshold value of large particle metal filings;
This step specifically comprises:
(31) curve that said each chemical composition element mass percent was changed with the operating time carries out simple linear regression analysis according to formula (1), draws standard deviation sigma, and confirms each chemical composition element mass percent and the linear dependence of operating time;
Y＝A+B*X (1)
Wherein, A and B are the linear regression constants;
(32) confirm the monitoring warning value of each chemical composition element mass percent in the large particle metal filings according to formula (2), and draw monitoring warning curve;
Y＝(A+B*X)+2σ (2)
(33) confirm the monitoring exceptional value of each chemical composition element mass percent in the large particle metal filings according to formula (3), and draw the monitoring abnormal curve.
Y＝(A+B*X)+3σ (3)
It should be noted that increase along with the X-ray fluorescence spectra data, need to the monitoring threshold value, comprise the monitoring warning value and the monitoring exceptional value dynamically revise..
How to utilize the large particle metal filings in the monitoring method monitoring machine lubrication system of the present invention below in conjunction with specific embodiment explanation.
Choose 76h-475h different operating time 17 certain type engine oil filter cores as monitored object; Analyze constituent contents such as the Fe in the large particle metal filings, Al, Cu, Ag, Ni, Cr, Ti in the filter core, monitor the mass distribution of the large particle metal filings chemical composition element of certain type machine.
At first, make the abrasive dust diaphragm that carries the large particle metal filings through engine oil filter element abrasive dust detector;
Afterwards, use energy-dispersion X-ray fluorescence spectrometer that the chemical composition and the mass distribution of large particle metal filings on the abrasive dust diaphragm are carried out quantitative analysis, obtain the X-ray fluorescence spectra data; Generally speaking, the chemical composition element of main monitoring comprises Fe, Al, Cu, Ag, Ni, Cr, Ti etc.
At last, the X-ray fluorescence spectra data are added up and analyzed, formulate the monitoring threshold value of large particle metal filings.
With Fe is example, confirms that according to formula (1) the one-variable linear regression equation of Fe mass percent and operating time and standard deviation are:
Y＝20.953+5.28×10
-2*X
σ＝1.777
The mass percent monitoring warning value of confirming Fe in the large particle metal filings according to formula (2) is:
Y
Alert=24.507+5.28 * 10
-2* X
The mass percent monitoring exceptional value of confirming Fe in the large particle metal filings according to formula (3) is respectively:
Y
Different=26.284+5.28 * 10
-2* X
Fig. 3 be in the present embodiment in the large particle metal filings Fe element mass percent change trend curve and the monitoring threshold value schematic representation.
In sum, the present invention at first utilizes engine oil filter element abrasive dust detector to make the abrasive dust diaphragm that carries the large particle metal filings; Use energy-dispersion X-ray fluorescence spectrometer to analyze large particle metal filings chemical composition and mass distribution and variation tendency thereof on the abrasive dust diaphragm then, form the X-ray fluorescence spectra data; At last the X-ray fluorescence spectra data are added up and analyzed, make the monitoring threshold value of large particle metal filings.Through monitoring method of the present invention can realize to filter element automatic cleaning, abrasive dust system film, abrasive dust chemical composition and mass distribution analysis and the monitoring threshold value formulation; Large particle metal filings in the monitoring machine lubrication system; Improve the prediction ability of wear and tear in machines class fault, remedy the deficiency that existing technology exists.
The above is preferred embodiment of the present invention and the know-why used thereof; For a person skilled in the art; Under the situation that does not deviate from the spirit and scope of the present invention; Any based on conspicuous changes such as the equivalent transformation on the technological scheme of the present invention basis, simple replacements, all belong within the protection domain of the present invention.
Claims (5)
1. the monitoring method of large particle metal filings in the machine lubrication system; Utilize engine oil filter element abrasive dust detector and energy-dispersion X-ray fluorescence spectrometer to realize that this engine oil filter element abrasive dust detector comprises filter core washing bucket, abrasive dust film applicator, fuel tank and control system, is provided with the filter core fitting seat in the filter core washing bucket; Filter core washing bucket downside is provided with the pulse gassing valve; Be provided with the miillpore filter mounting base that is used to install the miillpore filter diaphragm in the abrasive dust film applicator, the abrasive dust film applicator is provided with sealing cylinder and telescopic cylinder, and the fluid ingress of fuel tank is provided with oil stream signal-transmitting machine; It is characterized in that this monitoring method comprises:
1) makes the abrasive dust diaphragm that carries the large particle metal filings through said engine oil filter element abrasive dust detector;
2) utilize said energy-dispersion X-ray fluorescence spectrometer to confirm the chemical composition and the mass distribution of large particle metal filings on the said abrasive dust diaphragm, and form the X-ray fluorescence spectra data;
3), confirm the monitoring threshold value of large particle metal filings according to said X-ray fluorescence spectra data.
2. the monitoring method of large particle metal filings is characterized in that in the machine lubrication system as claimed in claim 1, and said step 1) comprises:
(11) open said filter core washing bucket, oil filter element to be detected is installed in said filter core fitting seat, seal said filter core washing bucket again;
(12) release the said miillpore filter mounting base of said abrasive dust film applicator through said telescopic cylinder, the miillpore filter diaphragm is installed on the said miillpore filter mounting base, draw back said miillpore filter mounting base through said telescopic cylinder again;
(13) filter core washing bucket cleaning process: said pulse gassing valve blows out the pulse backblowing air-flow to the oil filter element that is installed on the said filter core fitting seat, and the abrasive dust particle on the filter core is deviate from; In said filter core washing bucket, inject and clean fluid, clean the abrasive dust particle that blows out;
(14) abrasive dust film-forming process: the wash oil flow via hole diameter that contains the abrasive dust particle is 25 microns a miillpore filter diaphragm, and contained abrasive dust particle is collected the system film by the miillpore filter diaphragm;
(15) clean fluid and flow back to fuel tank through oil stream signal-transmitting machine; Said oil stream signal-transmitting machine detects cleaning fluid and whether all gets into fuel tank; After cleaning the said fuel tank of the whole entering of fluid, said oil stream signal-transmitting machine sends the said fuel tank sealing of SC sigmal control fluid and enters the mouth, and the gas in the pipeline is discharged then again;
(16) release the said miillpore filter mounting base of said abrasive dust film applicator through said telescopic cylinder, the miillpore filter diaphragm is taken out, draw back said miillpore filter mounting base through said telescopic cylinder again;
(17) open said filter core washing bucket, the oil filter element after to be detected is taken out, seal said filter core washing bucket again.
3. the monitoring method of large particle metal filings is characterized in that in the machine lubrication system as claimed in claim 2, said step 2) comprising:
(21) function software and the standard substance that use energy-dispersion X-ray fluorescence spectrometer to carry are demarcated instrument;
(22) use energy-dispersion X-ray fluorescence spectrometer to confirm each chemical composition and the mass percent thereof of large particle metal filings on the abrasive dust diaphragm, and draw the change trend curve of each chemical composition element mass percent with the operating time.
4. the monitoring method of large particle metal filings is characterized in that in the machine lubrication system as claimed in claim 3, and said step 3) comprises:
(31) curve that said each chemical composition element mass percent was changed with the operating time carries out simple linear regression analysis according to formula (1), draws standard deviation sigma, and confirms each chemical composition element mass percent and the linear dependence of operating time;
Y＝A+B*X (1)
Wherein, A and B are the linear regression constants;
(32) confirm the monitoring warning value of each chemical composition element mass percent in the large particle metal filings according to formula (2), and draw monitoring warning curve;
Y＝(A+B*X)+2σ (2)
(33) confirm the monitoring exceptional value of each chemical composition element mass percent of large particle metal filings according to formula (3), and draw the monitoring abnormal curve.
Y＝(A+B*X)+3σ (3)
5. the monitoring method of large particle metal filings is characterized in that in the machine lubrication system as claimed in claim 1, along with the increase of said X-ray fluorescence spectra data, said monitoring threshold value is dynamically revised.
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| CN2012100353517A CN102563328A (en) | 2012-02-16 | 2012-02-16 | Monitoring method of large particle metal abrasive dust in machine lubrication system |
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| CN2012100353517A CN102563328A (en) | 2012-02-16 | 2012-02-16 | Monitoring method of large particle metal abrasive dust in machine lubrication system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105571994A (en) * | 2015-12-11 | 2016-05-11 | 中国航空工业集团公司西安航空计算技术研究所 | Parameter detection method for lubricating oil metal filing of power transmission system |
| CN105675457A (en) * | 2016-01-26 | 2016-06-15 | 张继勇 | System and method for detecting metal debris in lubricating oil filtering element |
| CN106706477A (en) * | 2016-10-27 | 2017-05-24 | 北京润道油液监测技术有限公司 | Testing system and method for testing morphology of abrasive dust in oil sample |
| CN108780078A (en) * | 2016-02-23 | 2018-11-09 | C·C·詹森有限公司 | Liquid condition evaluation for multi-mode working system |
| US10151717B2 (en) | 2013-08-22 | 2018-12-11 | The University Of Sussex | Lubricant analysis using X-ray fluorescence |
| CN113702059A (en) * | 2021-09-17 | 2021-11-26 | 中国联合重型燃气轮机技术有限公司 | A lubricating oil filter for gas turbine |
| US12266593B2 (en) * | 2021-08-30 | 2025-04-01 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method of forming semiconductor device having at least one via including concave portions on sidewall |
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| US10151717B2 (en) | 2013-08-22 | 2018-12-11 | The University Of Sussex | Lubricant analysis using X-ray fluorescence |
| CN105571994A (en) * | 2015-12-11 | 2016-05-11 | 中国航空工业集团公司西安航空计算技术研究所 | Parameter detection method for lubricating oil metal filing of power transmission system |
| CN105571994B (en) * | 2015-12-11 | 2018-02-09 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of power drive system lubricating oil metal fillings parameter detection method |
| CN105675457A (en) * | 2016-01-26 | 2016-06-15 | 张继勇 | System and method for detecting metal debris in lubricating oil filtering element |
| CN105675457B (en) * | 2016-01-26 | 2019-01-18 | 张继勇 | A kind of lubricating oil filter element metal filings detection system and method |
| CN108780078A (en) * | 2016-02-23 | 2018-11-09 | C·C·詹森有限公司 | Liquid condition evaluation for multi-mode working system |
| CN108780078B (en) * | 2016-02-23 | 2021-05-14 | C·C·詹森有限公司 | Fluid condition assessment for multi-mode operating system |
| CN106706477A (en) * | 2016-10-27 | 2017-05-24 | 北京润道油液监测技术有限公司 | Testing system and method for testing morphology of abrasive dust in oil sample |
| US12266593B2 (en) * | 2021-08-30 | 2025-04-01 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method of forming semiconductor device having at least one via including concave portions on sidewall |
| CN113702059A (en) * | 2021-09-17 | 2021-11-26 | 中国联合重型燃气轮机技术有限公司 | A lubricating oil filter for gas turbine |
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Application publication date: 20120711 |