CN117625280A - Railway locomotive gear lubricating oil composition and preparation method thereof - Google Patents
Railway locomotive gear lubricating oil composition and preparation method thereof Download PDFInfo
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- CN117625280A CN117625280A CN202210959681.9A CN202210959681A CN117625280A CN 117625280 A CN117625280 A CN 117625280A CN 202210959681 A CN202210959681 A CN 202210959681A CN 117625280 A CN117625280 A CN 117625280A
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- 239000000203 mixture Substances 0.000 title claims abstract description 70
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 54
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title description 4
- 239000002199 base oil Substances 0.000 claims abstract description 29
- 239000003921 oil Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 6
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 6
- 239000006078 metal deactivator Substances 0.000 claims abstract description 4
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 claims description 16
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- -1 alkyl benzotriazole Chemical compound 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims 1
- 239000000314 lubricant Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 14
- 238000007254 oxidation reaction Methods 0.000 abstract description 14
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 8
- 125000000753 cycloalkyl group Chemical group 0.000 abstract 1
- 229920013639 polyalphaolefin Polymers 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- AROCLDYPZXMJPW-UHFFFAOYSA-N 1-(octyldisulfanyl)octane Chemical compound CCCCCCCCSSCCCCCCCC AROCLDYPZXMJPW-UHFFFAOYSA-N 0.000 description 7
- AJPMQQSNPDNRBL-UHFFFAOYSA-N 1-dodecyl-7-thiabicyclo[4.1.0]hepta-2,4-dien-6-ol Chemical compound C1=CC=CC2(CCCCCCCCCCCC)C1(O)S2 AJPMQQSNPDNRBL-UHFFFAOYSA-N 0.000 description 7
- NTUWILYOOYGCPC-UHFFFAOYSA-N 4-octyl-2h-benzotriazole Chemical compound CCCCCCCCC1=CC=CC2=NNN=C12 NTUWILYOOYGCPC-UHFFFAOYSA-N 0.000 description 5
- 101100407037 Oryza sativa subsp. japonica PAO6 gene Proteins 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- QGMNRSRPONKEIB-UHFFFAOYSA-N (2,6-ditert-butyl-4-methylphenyl) prop-2-enoate Chemical compound CC1=CC(C(C)(C)C)=C(OC(=O)C=C)C(C(C)(C)C)=C1 QGMNRSRPONKEIB-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000010696 ester oil Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- GVSNQMFKEPBIOY-UHFFFAOYSA-N 4-methyl-2h-triazole Chemical compound CC=1C=NNN=1 GVSNQMFKEPBIOY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- OKNWDRRZYPQOMN-UHFFFAOYSA-N dioctylcarbamothioic s-acid Chemical compound CCCCCCCCN(C(S)=O)CCCCCCCC OKNWDRRZYPQOMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/045—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and non-macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/106—Naphthenic fractions
- C10M2203/1065—Naphthenic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/2805—Esters used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/086—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing sulfur atoms bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/72—Extended drain
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a railway locomotive gear lubricating oil composition, which comprises the following components: (A) At least one poly-a-olefin synthetic oil, or a naphthenic base oil, or any combination of the above; the lubricating oil composition contains 94.00 to 99.60wt% of (A) component; (B) at least one antioxidant; the lubricating oil composition contains (B) component 0.1-3.0wt%; (C) at least one antiwear agent; the lubricating oil composition contains (C) component 0.2-2.0wt%; (D) at least one metal deactivator; the lubricating oil composition contains 0.1 to 1.0 wt.% of the (D) component. The lubricating oil composition has excellent low-temperature performance, rust resistance, extreme pressure wear resistance and oxidation resistance, and the low-temperature performance and oxidation resistance of the lubricating oil composition can be effectively improved by selecting the poly-a-olefin synthetic oil and the cycloalkyl base oil.
Description
Technical Field
The invention belongs to the technical field of lubricating oil, and particularly relates to a railway locomotive gear lubricating oil composition and a preparation method of the lubricating oil composition.
Background
Along with the rapid development of railway transportation industry in China, the pace of introducing foreign advanced locomotive products is continuously increased. In recent years, the company of China's large locomotive company and the company of American EMD cooperate to produce HXN 3-type railway locomotives, and HXN 3-type locomotives belong to the technical leading products in the field of locomotive products in the world today. The locomotive is a 6000 horsepower alternating current transmission trunk freight railway locomotive which is improved and designed according to Chinese railway technical specifications on the basis of SD70MAC and SD90MAC type locomotives, the locomotive axle weight is 25 tons, a series of advanced technologies are adopted, 5000 tons freight trains can be pulled on a straight line by a single machine, the highest application speed is 120 km, the typical high-speed heavy-load working condition is provided, the extreme pressure wear resistance and the thermal oxidation stability of the gearbox oil of the transmission system are more required, and the gearbox of the HXN3 railway locomotive has more excellent performance in terms of oxidation resistance, wear resistance, emulsification resistance and the like compared with common gear oil in the process of oil consumption.
Disclosure of Invention
The invention aims to provide a railway locomotive gear lubricating oil composition which has excellent high-low temperature performance, thermal oxidation stability, wear resistance, antifriction, rust resistance, corrosion resistance, emulsification resistance and bubble resistance, and can meet the lubrication requirements of gear boxes and bearings of railway locomotives under severe conditions.
The technical scheme adopted by the invention is that the railway locomotive gear lubricating oil composition comprises the following components:
(A) At least one poly-a-olefin synthetic oil, or synthetic cycloparaffin base oil, or any combination of the above; the lubricating oil composition contains 94.00 to 99.60wt% of (A) component;
(B) At least one antioxidant; the lubricating oil composition contains (B) component 0.1-3.0wt%;
(C) At least one antiwear agent; the lubricating oil composition contains (C) component 0.2-2.0wt%;
(D) At least one metal deactivator; the lubricating oil composition contains 0.1 to 1.0 wt.% of the (D) component.
The present invention is also characterized in that,
(A) The composition is synthesized cycloparaffin base oil, and comprises the following components in percentage by mass: 0-20% of monocyclocycloalkane, 10-30% of bicyclocycloalkane, 20-30% of tricyclocycloalkane, 10-30% of tetracyclocycloalkane, 0-20% of pentacyclocycloalkane and 0-20% of hexacycloalkane.
(B) The component is sulfurized alkylphenol, wherein the alkyl group is 8-24 carbon atoms.
(C) The component is a dialkyl disulfide, or a dialkanyl disulfide, or a mixture of any combination thereof.
The alkyl groups in the dialkyl disulfide are 4 to 18 carbon atoms; the alkyl groups in the dialkylaryl disulfide are from 1 to 8 carbon atoms.
(D) The component is alkyl benzotriazol, wherein the alkyl is 3-18 carbon atoms.
The beneficial effects of the invention are as follows: the lubricating oil composition has excellent low temperature performance, rust resistance, extreme pressure antiwear performance and oxidation resistance, the poly-a-olefin synthetic oil and naphthenic base oil are selected, the low temperature performance and oxidation resistance of the lubricating oil composition can be effectively improved, the base oil and additive components in the lubricating oil composition are carefully selected, and the interaction relation among the component oils, the functional additives of the components and the base oil and the additives is comprehensively and systematically researched, so that the thermal oxidation stability of the lubricating oil composition is taken as the key point of research, and the purposes that the lubricating oil composition can meet the good lubrication of gear boxes and bearings of railway locomotives under severe conditions, prolong the oil change period of lubricating oil and save the maintenance and oil change cost of the railway locomotives are achieved.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The invention relates to a railway locomotive gear lubricating oil composition, which comprises the following components:
(A) At least one poly-a-olefin synthetic oil, or synthetic cycloparaffin base oil, or any combination of the above; the lubricating oil composition contains 94.00 to 99.60wt% of (A) component;
the synthetic cycloparaffin base oil comprises the following components in percentage by mass: 0-20% of monocyclocycloalkane, 10-30% of bicyclocycloalkane, 20-30% of tricyclocycloalkane, 10-30% of tetracyclocycloalkane, 0-20% of pentacyclocycloalkane and 0-20% of hexacycloalkane;
(B) At least one antioxidant; (B) The component is sulfurized alkylphenol, wherein the alkyl is 8-24 carbon atoms; the lubricating oil composition contains (B) component 0.1-3.0wt%;
(C) At least one antiwear agent; is a dialkyl disulfide, or a dialkanyl disulfide, or a mixture of any combination thereof; the lubricating oil composition contains (C) component 0.2-2.0wt%;
the alkyl groups in the dialkyl disulfide are 4 to 18 carbon atoms;
the alkyl groups in the dialkylaryl disulfide are 1 to 8 carbon atoms;
(D) At least one metal deactivator; (D) The component is alkyl benzotriazol, wherein the alkyl is 3-18 carbon atoms; the lubricating oil composition contains 0.1 to 1.0 wt.% of the (D) component.
The invention relates to a preparation method of a railway locomotive gear lubricating oil composition, which comprises the following steps: adding the component (A) into a stainless steel blending kettle with a stirrer, adding an antioxidant (B), an antiwear agent (C) and a metal passivating agent (D) into the blending kettle, heating to 50-60 ℃, and stirring for 4 hours until the mixture is uniform and transparent, thus obtaining a lubricating oil composition;
in order to screen the base oil component, additive component and lubricating oil composition, the present invention was simulated in the laboratory using various test methods. Among them are copper sheet corrosion test (ASTM D130), rust inhibitive test (ASTM D665), lubricating oil oxidation stability test (rotary oxygen bomb method) (SH/T0193), oxidation life test (ASTM D943), and the like.
Example 1:
lubricating oil composition (I) comprising: 70.50wt% of polyalphaolefin synthetic base oil mPAO150,7.90wt% of polyalphaolefin synthetic base oil PAO6, 20.00wt% of synthetic cycloparaffin base oil (component A); 0.55% by weight of a dodecylphenol sulfide (component B); 0.95wt% dioctyl disulfide, 0.10wt% dialkanylaryl disulfide (component C);
lubricating oil composition (II) was identical to composition (I) except that an ester oil was used instead of the synthetic cycloparaffin base oil, and the analysis results thereof are shown in Table 1.
TABLE 1 principal Properties and Properties of compositions (I) (II)
| Project | Composition (I) | Composition (II) |
| Rotary oxygen bomb test/min | 2236 | 201 |
The test results show that the oil product blended by the poly alpha-olefin synthetic base oil and the synthetic cycloparaffin has better oxidation resistance than the oil product blended by the poly alpha-olefin synthetic base oil and the ester oil.
Example 2:
lubricating oil composition (iii) comprising: 70.50wt% of polyalphaolefin synthetic base oil mPAO150,6.2wt% of polyalphaolefin synthetic base oil PAO6, 20.00wt% of synthetic cycloparaffin base oil (component A); 3.00% by weight of a dodecylphenol sulfide (component B); 0.10wt% dioctyl disulfide, 0.10wt% dialkanylaryl disulfide (component C); 0.10% by weight of octyl benzotriazole (component D);
lubricating oil composition (IV) was identical to composition (III) except that 2, 6-di-t-butyl-p-cresol acrylate was used instead of dodecylphenol sulfide, and the results of the analysis are shown in Table 2.
TABLE 2 principal Properties and Properties of composition (III) (IV)
Test results show that the dodecylphenol sulfide is more favorable for ASTM D943 oxidation life test than the 2, 6-di-tert-butyl-p-cresol acrylate, and has better oxidation resistance.
Example 3:
lubricating oil composition (v), comprising: 70.50wt% of polyalphaolefin synthetic base oil mPAO150,7.30wt% of polyalphaolefin synthetic base oil PAO6, 20.00wt% of synthetic cycloparaffin base oil (component A); 0.10% by weight of a dodecylphenol sulfide (component B); 2.00% by weight of dioctyl disulfide, (component C); 0.10% by weight of octyl benzotriazole (component D);
lubricating oil composition (VI) was identical to composition (VI) except that dioctylthiocarbamate was used in place of dioctyl disulfide, and the analysis results are shown in Table 3.
TABLE 3 principal Properties and Properties of composition (V) (VI)
Test results show that dioctyl disulfide has more excellent extreme pressure antiwear performance than dioctyl thiocarbamate.
Example 4:
lubricating oil composition (VII) comprising: 70.50wt% of polyalphaolefin synthetic base oil mPAO150,8.20wt% of polyalphaolefin synthetic base oil PAO6, 20.00wt% of synthetic cycloparaffin base oil (component A); 0.10% by weight of a dodecylphenol sulfide (component B); 0.10wt% dioctyl disulfide, 0.10wt% dialkanylaryl disulfide (component C); 1.00% by weight of octyl benzotriazole (component D);
lubricating oil composition (VIII) was identical to composition (VII) except that methyltriazole was used instead of octylbenzotriazole, and the analytical results are shown in Table 4.
TABLE 4 principal Properties and Properties of the composition (VII) (VIII)
| Project | Composition (VII) | Composition (VIII) |
| Copper sheet corrosion (100 ℃,3 h)/grade | 1b | 2e |
| Liquid phase rust test | Stainless steel | Medium rust |
Test results show that compared with methylbenzotriazole, the octyl benzotriazole has better corrosion resistance and rust resistance.
Example 5:
lubricating oil composition (IX) comprising: 70.50wt% of polyalphaolefin synthetic base oil mPAO150,7.85wt% of polyalphaolefin synthetic base oil PAO6, 20.00wt% of synthetic cycloparaffin base oil (component A); 0.55% by weight of a dodecylphenol sulfide (component B); 0.9wt% dioctyl disulfide, 0.10wt% dialkanylaryl disulfide (component C); 0.10% by weight of octyl benzotriazole (component D); the analysis results are shown in Table 5.
TABLE 5 principal Properties and Properties of composition (IX)
The composition (IX) of the invention has better low-temperature performance, rust resistance, extreme pressure antiwear performance and oxidation resistance compared with a reference oil, especially the service life of the rotating oxygen bomb test is as long as 2833 minutes, and the service life of the lubricating oil can be prolonged.
Claims (7)
1. A railroad locomotive gear lubricant composition comprising:
(A) At least one poly-a-olefin synthetic oil, or synthetic cycloparaffin base oil, or any combination of the above; the lubricating oil composition contains 94.00 to 99.60wt% of (A) component;
(B) At least one antioxidant; the lubricating oil composition contains (B) component 0.1-3.0wt%;
(C) At least one antiwear agent; the lubricating oil composition contains (C) component 0.2-2.0wt%;
(D) At least one metal deactivator; the lubricating oil composition contains 0.1 to 1.0 wt.% of the (D) component.
2. The railroad car gear lubricating oil composition of claim 1, wherein component (B) is a sulfurized alkylphenol having an alkyl group of 8 to 24 carbon atoms.
3. The railroad locomotive gear lubricating oil composition of claim 1, wherein the (C) component is a dialkyl disulfide, or a dialkanoaryl disulfide, or a mixture of any combination thereof.
4. A railroad locomotive gear lubricating oil composition as set forth in claim 3 wherein the alkyl groups of said dialkyl disulfide are from 4 to 18 carbon atoms; the alkyl group in the dialkanyl disulfide is 1 to 8 carbon atoms.
5. The lubricating oil composition for a railroad locomotive gear as set forth in claim 1, wherein said component (D) is an alkyl benzotriazole wherein the alkyl groups are 3 to 18 carbon atoms.
6. A process for preparing a railroad locomotive gear lubricating oil composition as set forth in any one of claims 1-5, comprising: adding the component (A) into a stainless steel blending kettle with a stirrer, and then adding an antioxidant (B), an antiwear agent (C) and a metal passivating agent (D) into the blending kettle for stirring reaction to obtain the lubricating oil composition.
7. The method for preparing a lubricating oil composition for railway locomotive gears according to claim 6, wherein the reaction temperature is 50-60 ℃ and the reaction time is 4 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210959681.9A CN117625280A (en) | 2022-08-10 | 2022-08-10 | Railway locomotive gear lubricating oil composition and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210959681.9A CN117625280A (en) | 2022-08-10 | 2022-08-10 | Railway locomotive gear lubricating oil composition and preparation method thereof |
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| CN202210959681.9A Pending CN117625280A (en) | 2022-08-10 | 2022-08-10 | Railway locomotive gear lubricating oil composition and preparation method thereof |
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| Country | Link |
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| CN (1) | CN117625280A (en) |
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