CN102507455A - Method for determining thermal oxidation stability of lubricating oils of same label by chromatic change values - Google Patents
Method for determining thermal oxidation stability of lubricating oils of same label by chromatic change values Download PDFInfo
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- CN102507455A CN102507455A CN2011103512262A CN201110351226A CN102507455A CN 102507455 A CN102507455 A CN 102507455A CN 2011103512262 A CN2011103512262 A CN 2011103512262A CN 201110351226 A CN201110351226 A CN 201110351226A CN 102507455 A CN102507455 A CN 102507455A
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Abstract
The invention relates to a method for determining the thermal oxidation stability of lubricating oils of the same label by chromatic change values. The method comprises the following steps of: respectively weighing 150 g of a plurality of lubricating oils of the same label firstly and respectively measuring the original chromatic values of the lubricating oils by a chroma determinator; pouring the lubricating oils into 250-ml beakers respectively and putting the beakers on a voltage-adjustable closed electric furnace for heating; heating up the lubricating oils to the temperature of 150+/-5 DEG C with the continuous stirring of stirrers, heating for 40 minutes, and then respectively measuring high-temperature chromatic values by using the chroma determinator when the lubricating oils are cooled to the room temperature, wherein the chromatic change value is equal to the difference between the high-temperature chromatic value and the original chromatic value, smaller chromatic change values indicate that the lubricating oils with the smaller chromatic change values have higher thermal oxidation stability, bigger chromatic change values indicate that the lubricating oils with the bigger chromatic change values have lower thermal oxidation stability, and the lubricating oils with higher thermal oxidation stability are the lubricating oils with better quality among the lubricating oils of the same label. The determined result obtained by the method disclosed by the invention is consistent with a laboratory detection result, therefore, the method can be used for quickly verifying the thermal oxidation stability of the lubricating oils.
Description
Technical field
The invention belongs to technical field of lubricating oil, especially same label lubricating oil is judged the method for thermal oxidation stability through the colourity changing value.
Background technology
At present domestic have following five kinds to oil ageing stability detection method:
" SH/T0193 lubricating oil oxidation stability determination method " (or claiming the rotary oxygen bomb method); This law regulation sample, distilled water and copper catalyst coil are put in the glass sample holder with cover together, put it into then and be equipped with in the manometric oxygen bomb.Oxygen bomb at room temperature charges into the oxygen of 620kPa pressure, puts into set point of temperature (140 ℃ of insulating oils; 150 ℃ of steam turbine oils) in the oil bath.Oxygen bomb becomes 30 degree angles with surface level, with the velocity axis of 100r/min to rotation.When falling, authorised pressure stops test when reaching.The record test period is according to the bomb test time, as the oxidation stability of sample.
Above-mentioned five kinds of method of testings must use complicated lubricating oil oxidation stability detecting instrument to accomplish, and test process is loaded down with trivial details, needs the input price expensive detection equipment, is unfavorable for the Rapid identification of same label lubricating oil quality.
Summary of the invention
For addressing the above problem; The invention provides a kind of same label lubricating oil and judge the method for thermal oxidation stability through the colourity changing value; This method can judge simply fast that the thermal oxidation stability of same model lubricating oil under 150 ± 5 ℃ of conditions of high temperature can; Thereby come simple and effective which kind of lubricating oil that determines to have antioxygenic property preferably according to the colourity changing value of being surveyed, quicken the development and utilization process of lubricating oil kind.
For realizing the foregoing invention purpose, the present invention adopts following technical scheme:
A kind of same label lubricating oil is judged the method for thermal oxidation stability through the colourity changing value; This method takes by weighing each 150g of some kinds of lubricating oil of same label earlier and measures the original chrominance of said some kinds of lubricating oil through the chromaticity of petroleum product analyzer respectively; Then said some kinds of lubricating oil are poured into respectively in the 250ml beaker; Again the beaker of each 250ml is placed on the closed electric furnace of adjustable voltage and heats; Under stirrer constantly stirs, said some kinds of lubricating oil are warming up to 150 ± 5 ℃; Heat the high temperature chromatic value of measuring said some kinds of lubricating oil when being cooled to room temperature after 40 minutes again with the chromaticity of petroleum product analyzer respectively; Said high temperature chromatic value and said original chrominance compared draw the colourity changing value, promptly said high temperature chromatic value-said original chrominance=said colourity changing value, said colourity changing value is more little representes that then the thermal oxidation stability of this lubricating oil is just high more; Said colourity changing value is bigger representes that then the thermal oxidation stability of this lubricating oil is just low more, and this lubricating oil with higher thermal oxidation stability is exactly quality lubricating oil preferably in the same label lubricating oil.
Owing to adopt technical scheme as stated, the present invention produces following effect:
The present invention can fast and effeciently test the thermal oxidation stability of some kinds of lubricating oil of same label, thereby helps the lubricating oil of the unit selection superior performance of use lubricating oil, can quicken the development and use process of lube product simultaneously.
Embodiment
Home and abroad lubricating oil market development at present is very fast, and owing to rising steadily of oil price, non-standard lubricating oil has appearred in the lubricating oil of same model on the market, and the antioxygenic property of non-standard lubricating oil is relatively poor, brings harmful effect to equipment.Method of the present invention can be used for some kinds of lubricating oil of same label are identified to have antioxygenic property preferably to distinguish which kind of lubricating oil.
The present invention takes by weighing each 150g of some kinds of lubricating oil of same label earlier and measures the original chrominance of said some kinds of lubricating oil through the chromaticity of petroleum product analyzer respectively; Said some kinds of lubricating oil must be same labels, and said some kinds is the lubricating oil of two or more same label at least.
Above-mentioned chromaticity of petroleum product analyzer need meet SH/T0168 chromaticity of petroleum product determination method.
Said some kinds of lubricating oil are poured into respectively in the 250ml beaker, the beaker of each 250ml is placed on the closed electric furnace of adjustable voltage heats again, be placed on the electric furnace that has asbestos gauge and also can.Under stirrer constantly stirs, said some kinds of lubricating oil are warming up to 150 ± 5 ℃; Heat the high temperature chromatic value of measuring said some kinds of lubricating oil when being cooled to room temperature after 40 minutes again with the chromaticity of petroleum product analyzer respectively; Said high temperature chromatic value and said original chrominance compared draw the colourity changing value; It is said high temperature chromatic value-said original chrominance=said colourity changing value; Said colourity changing value is more little representes that then the thermal oxidation stability of this lubricating oil is just high more; Said colourity changing value is bigger representes that then the thermal oxidation stability of this lubricating oil is just low more, and this lubricating oil with higher thermal oxidation stability is exactly quality lubricating oil preferably in the same label lubricating oil.
Lifting three embodiment below proves.
Embodiment 1:
The L-AN46# total loss system that different manufacturers is produced identifies with the thermal oxidation stability of oil
L-AN46# total loss system is a kind of base oil of producing special lubricating oil with oil; Select the base oil of three different manufacturers and be labeled as 1#, 2# and 3#; Respectively take by weighing 150g and measure the original chrominance of 1#, 2# and 3# base oil through the chromaticity of petroleum product analyzer respectively; 1#, 2# and 3# base oil are poured in the beaker of three 250ml, three beakers are placed on the closed electric furnace of adjustable voltage and heat, under stirrer constantly stirs, 1#, 2# and 3# base oil temperature are risen to 150 ℃; Heat when being cooled to room temperature after 40 minutes and measure corresponding high temperature chromatic value respectively with the chromaticity of petroleum product analyzer again, concrete parameter sees the following form:
| Base oil | 1# | 2# | 3# |
| Original chrominance | 3 | 3 | 3 |
| The high temperature chromatic value | 4 | 5 | 8 |
1#, 2# and 3# base oil show through the result behind the heated oxide:
The 1# base oil becomes No. 4, high temperature chromatic value, colourity changing value=1 for No. 3 from original chrominance;
The 2# base oil becomes No. 5, high temperature chromatic value, colourity changing value=2 for No. 3 from original chrominance;
The 3# base oil becomes No. 8, high temperature chromatic value, colourity changing value=5 for No. 3 from original chrominance.
Draw thus: the thermal oxidation stability of 1# base oil is best, and the thermal oxidation stability of 3# base oil is the poorest.
Embodiment 2:
Different manufacturers L-AN100# total loss system identifies with the thermal oxidation stability of oil
L-AN100# total loss system is a kind of base oil of producing special lubricating oil with oil; Select the base oil of three different manufacturers and be labeled as 4#, 5# and 6#; Respectively take by weighing 150g and measure the original chrominance of 4#, 5# and 6# base oil through the chromaticity of petroleum product analyzer respectively; 4#, 5# and 6# base oil are poured in the beaker of three 250ml, three beakers are placed on the closed electric furnace of adjustable voltage and heat, under stirrer constantly stirs, 4#, 5# and 6# base oil temperature are risen to 145 ℃; Heat when being cooled to room temperature after 40 minutes and measure corresponding high temperature chromatic value respectively with the chromaticity of petroleum product analyzer again, concrete parameter sees the following form:
| Base oil | 4# | 5# | 6# |
| Original chrominance | 10 | 10 | 10 |
| The high temperature chromatic value | 11 | 13 | 16 |
4#, 5# and 6# base oil show through the result behind the heated oxide:
The 4# base oil becomes No. 11, high temperature chromatic value, colourity changing value=1 for No. 10 from original chrominance;
The 5# base oil becomes No. 13, high temperature chromatic value, colourity changing value=3 for No. 10 from original chrominance;
The 6# base oil becomes No. 16, high temperature chromatic value, colourity changing value=6 for No. 10 from original chrominance.
Draw thus: the thermal oxidation stability of 4# base oil is best, and the thermal oxidation stability of 6# base oil is the poorest.
Embodiment 3:
Be used to develop the prescription screening of special lubricating oil
H2010 is a kind of high temperature grease of independent development, uses different anti-oxidants to fill a prescription and screens generation A, B, C, four kinds of oil samples of D.Take by weighing four kinds of each 150g of oil sample and measure the original chrominance of A, B, C, four kinds of oil samples of D through the chromaticity of petroleum product analyzer respectively; A, B, C, four kinds of oil samples of D are poured in the beaker of four 250ml; Four beakers are placed on the closed electric furnace of adjustable voltage and heat; Under stirrer constantly stirs, A, B, C, four kinds of oil sample temperature of D are risen to 155 ℃; Heat when being cooled to room temperature after 40 minutes and measure corresponding high temperature chromatic value respectively with the chromaticity of petroleum product analyzer again, concrete parameter sees the following form:
| The H2010 high temperature grease | A | B | C | D |
| Original chrominance | 14 | 14 | 15 | 15 |
| The high temperature chromatic value | 14 | 15 | 16 | 17 |
A, B, C, four kinds of oil samples of D show through the result behind the heated oxide:
The A oil sample becomes No. 14, high temperature chromatic value, colourity changing value=0 for No. 14 from original chrominance;
The B oil sample becomes No. 15, high temperature chromatic value, colourity changing value=1 for No. 14 from original chrominance;
The C oil sample becomes No. 16, high temperature chromatic value, colourity changing value=2 for No. 14 from original chrominance;
The D oil sample becomes No. 17, high temperature chromatic value, colourity changing value=3 for No. 14 from original chrominance.
Draw thus: the thermal oxidation stability of A oil sample is best, and the thermal oxidation stability of D oil sample is the poorest, and A oil sample quality preferably and be optimum formula.
The present invention is effectively used in the high temperature grease new product development.Play positive impetus for the formulation optimization of high temperature grease and the performance comparison of various brand high temperature greases.The result that method of the present invention and laboratory are detected is consistent, explains that this method can effectively verify the oil ageing stability fast.
Claims (1)
1. a same label lubricating oil passes through the method that the colourity changing value is judged thermal oxidation stability; It is characterized in that: this method takes by weighing each 150g of some kinds of lubricating oil of same label earlier and measures the original chrominance of said some kinds of lubricating oil through the chromaticity of petroleum product analyzer respectively; Then said some kinds of lubricating oil are poured into respectively in the 250ml beaker; Again the beaker of each 250ml is placed on the closed electric furnace of adjustable voltage and heats; Under stirrer constantly stirs, said some kinds of lubricating oil are warming up to 150 ± 5 ℃; Heat the high temperature chromatic value of measuring said some kinds of lubricating oil when being cooled to room temperature after 40 minutes again with the chromaticity of petroleum product analyzer respectively; Said high temperature chromatic value and said original chrominance compared draw the colourity changing value, promptly said high temperature chromatic value-said original chrominance=said colourity changing value, said colourity changing value is more little representes that then the thermal oxidation stability of this lubricating oil is just high more; Said colourity changing value is bigger representes that then the thermal oxidation stability of this lubricating oil is just low more, and this lubricating oil with higher thermal oxidation stability is exactly quality lubricating oil preferably in the same label lubricating oil.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104792783A (en) * | 2015-05-05 | 2015-07-22 | 重庆工商大学 | Method for identifying mineral lubricating oil and fully synthesized lubricating oil |
| CN105241877A (en) * | 2015-10-20 | 2016-01-13 | 中国石油化工股份有限公司 | Reagent used for detecting refining degree of hydrogenated oil and method for detecting refining degree of hydrogenated oil |
| CN113915118A (en) * | 2021-12-13 | 2022-01-11 | 山东尤科斯石油装备有限公司 | Fracturing plunger pump with oil circuit detection and alarm functions |
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| CN101307271A (en) * | 2007-05-18 | 2008-11-19 | 中国石油化工股份有限公司 | Recovering and regenerating method for waste lubrication oil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792783A (en) * | 2015-05-05 | 2015-07-22 | 重庆工商大学 | Method for identifying mineral lubricating oil and fully synthesized lubricating oil |
| CN105241877A (en) * | 2015-10-20 | 2016-01-13 | 中国石油化工股份有限公司 | Reagent used for detecting refining degree of hydrogenated oil and method for detecting refining degree of hydrogenated oil |
| CN113915118A (en) * | 2021-12-13 | 2022-01-11 | 山东尤科斯石油装备有限公司 | Fracturing plunger pump with oil circuit detection and alarm functions |
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Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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