CN105733787A - Anti-pitting self-repairing gear grease - Google Patents
Anti-pitting self-repairing gear grease Download PDFInfo
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- CN105733787A CN105733787A CN201610257099.2A CN201610257099A CN105733787A CN 105733787 A CN105733787 A CN 105733787A CN 201610257099 A CN201610257099 A CN 201610257099A CN 105733787 A CN105733787 A CN 105733787A
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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
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- 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
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- 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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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- 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
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- 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
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
- C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
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- 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
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
- C10M2219/024—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of esters, e.g. fats
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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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/041—Triaryl phosphates
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- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/08—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-nitrogen bonds
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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
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
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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
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/066—Organic compounds derived from inorganic acids or metal salts derived from Mo or W
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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
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- 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
- 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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Abstract
The invention relates to anti-pitting self-repairing gear grease. The anti-pitting self-repairing gear grease comprises, by weight, 92-97% of a gear grease body and 3-8% of a self-repairing addition agent. According to calculation of the total mass of 100%, the self-repairing addition agent comprises, by weight, 50-70% of antioxidant, 10-25% of an anti-wear agent, 5-10% of an extreme pressure agent and 5-20% of organic molybdenum. The anti-pitting self-repairing gear grease has excellent antioxygen performance and extreme pressure wear resisting performance at different temperatures, can effectively prevent the surface of a gear from generating pitting, and can have a function of repairing the worn surface of the gear to a certain degree, so that the service life of the gear is prolonged.
Description
Technical field
The invention belongs to technical field of fine, be specifically related to a kind of gear grease, particularly relate to a kind of anti-spot corrosion selfreparing gear grease.
Background technology
Gear drive is one of type of belt drive main in modern mechanical, most widely used.For reducing the fretting wear in working gear process, extend the service life of gear, it is necessary to make with lubricator.Enclosed industrial gear generally uses industrial gear oil, and exposed gear generally uses gear grease.Exposed gear lubricating many selections Colophonium type lubricant of early stage, along with the equipment development raising to lubricating requirement, much gear grease novel, high performance is developed and is applied to commercial production.
The gear grease of current main flow forms by thickening agent, base oil and multiple additives.Thickening agent includes non-soap base thickening agent such as bentonite, silica gel, politef etc. and soap base thickening agent such as lithium soap, compound lithium soap, calcium complex soap, composite sulfoacid calcium soap, compound aluminium soap etc..Thickening agent is bigger to performance impacts such as the high-temperature behavior of grease, colloid stability and mechanical stabilities.Base oil component typically constitutes from more than the 80% of gear grease mass fraction, and therefore the raising of base oil performance can be greatly promoted the performance of gear grease.It is said that in general, the gear grease performance of synthetic base oil is better than the gear grease of mineral base oil.Additive is the critical function composition of gear grease, and the combination property of raising and reinforcement gear grease is had important function.In general the additive in gear grease has three kinds of functions: protects metal surface, protection grease itself and improves PERFORMANCE OF GREASES.
Additive in gear grease is generally composited by multiple additives such as antioxidant, extreme pressure anti-wear additives, antirust agent, viscosifier and kollags, has excellent combination property, to adapt to the instructions for use of modern industrial equipment.Traditional sulfur phosphorous extreme pressure anti-wear additives is under the harsh operating mode such as high temperature, heavy duty; with surface of friction pair metal in the raw reaction of TRANSIENT HIGH TEMPERATURE elevated pressure; generate one layer and there is some strength, dystectic chemical reaction film; can prevent friction pair melting welding from sintering; effectively protect equipment; and play certain friction-reducing and antiwear action, extension device service life.But traditional sulfur phosphorous extreme pressure anti-wear additives does not have the reparative regeneration function to wear surface, it is impossible to repair the spot corrosion of gear surface, scratch etc..Self-repair function additive is a kind of novel lubricating additive that development in recent years is got up; mechanical friction effect, chemical reaction and electrochemical reaction etc. can be passed through with friction pair, lubricant in equipment running process; realize material phase interchangeable; final form the special protection layer with the feature such as high temperature resistant, wear-resistant, corrosion-resistant at surface of friction pair, thus realizing the dynamic selfreparing of surface of friction pair.Organic-molybdenum is the additive of self-rehabilitation that a class is widely used in lubricating area, the repairing effect good because of it and paid close attention to widely.Under the operating mode that high speed, high temperature, high pressure etc. are harsh, friction surface is badly damaged, form rough friction surface, organic-molybdenum under localized hyperthermia's condition of high voltage with wear surface effect, micro-bulge is rolled producing plastic deformation, fills and leads up groove by micro-theomorphism, and rough friction surface is formed more smooth friction surface by break-in again, namely friction perished surface there is a degree of repair, thus reducing abrasion.By adding appropriate organic-molybdenum and substantial amounts of composite antioxidant in gear lubrication fat additives, antioxidant effect and the friction pair self-repair function of gear grease can being effectively improved, thus preventing gear surface spot corrosion, extending service life of gear.
Prior art CN103254976A, CN104194889A, CN104312693A, CN104312677A, CN104164277A, CN104312697A, CN104830424A, CN103045334A, CN103602447A, CN104830496A, CN103805325A individually disclose a kind of gear grease, although above-mentioned existing gear grease has good extreme pressure and antiwear behavior and rustless property, but antioxidation at high temperature is not strong, and without friction pair self-repair function, can not effectively prevent gear surface spot corrosion, it is necessary to improve further.
Summary of the invention
The technical problem to be solved is to provide a kind of anti-spot corrosion selfreparing gear grease for prior art, because of containing additive of self-rehabilitation, this anti-spot corrosion selfreparing gear grease all has preferably antioxygen property and extreme pressure anti-wear at different temperatures, gear wear surface had a degree of repair simultaneously, thus effectively preventing gear pitting corrosion, extend the service life of gear.
Anti-spot corrosion selfreparing gear grease of the present invention, by weight percentage, its contain 92～97% gear grease body and 3～8% additive of self-rehabilitation；
With the gross mass of described additive of self-rehabilitation for 100%, described additive of self-rehabilitation is containing, for example the component of lower percentage by weight:
Without base oil in additive of self-rehabilitation in this anti-spot corrosion selfreparing gear grease, contain substantial amounts of antioxidant simultaneously, namely this additive of self-rehabilitation replaces base oil in conventional additive as dispersible carrier using substantial amounts of antioxidant, it is a kind of breakthrough for traditional additive composition thinking being main component with extreme pressure anti-wear additives or oil (synthesis) base oil, has simultaneously and good prevent oil oxidation to lose efficacy, extend the function of oil life limit.
Wherein, described gear grease body is containing, for example the component of lower parts by weight:
Wherein, 40 DEG C of kinematic viscositys of described base oil are 1000～3500mm2/ s, for instance 1200mm2/s、 1500mm2/s、1800mm2/s、2000mm2/s、2100mm2/s、2200mm2/s、2500mm2/s、2700mm2/s、3000mm2/s、3200mm2/s、3500mm2/ s or 3700mm2/s；
Preferably, described base oil be in paraffin base mineral oil, intermediate base mineral oil, poly alpha olefin, polybutene, polyisobutylene, Esters oil two or more；Described typical case and the infinite combination being combined as paraffin base mineral oil and polybutene, the combination of intermediate base mineral oil and polyisobutylene, the combination of poly alpha olefin and polybutene, the combination etc. of polyisobutylene and Esters oil.
Preferably, described thickening agent is one or more in lithium soap, compound lithium soap, calcium complex soap, compound aluminium soap, composite sulfoacid calcium soap, bentonite, polyureas；Described typical case and the infinite combination being combined as lithium soap and calcium complex soap, the combination of compound lithium soap and calcium complex soap, the combination of calcium complex soap and compound aluminium soap, the combination of compound lithium soap and composite sulfoacid calcium soap, the combination etc. of compound lithium soap and polyureas.
Preferably, described extreme pressure agent is one or more in sulfide aliphatic acid ester, sulfuration triglyceride, sulfurized hydrocarbons, sulfide aliphatic acid, borate；Described typical case and the infinite combination being combined as sulfide aliphatic acid ester and sulfuration triglyceride, sulfuration triglyceride, sulfurized hydrocarbons and sulfide aliphatic acid combination, sulfide aliphatic acid and boratory combination etc..
Preferably, described antirust agent is one or more in organic carboxyl acid, organic sulfonate, organic amine, described typical case and the infinite combination being combined as organic carboxyl acid and organic sulfonate, the combination etc. of organic sulfonate and organic amine.
Wherein, antioxidant can select the conventional antioxidant of this area, the typical but non-limiting example of described antioxidant has: 2,4,6-tri-butyl-phenol, 2,6-di-t-butyl-4-nonyl phenol, 2,6-ditertbutylparacresol, iso-octyl-3-(3,5 di-t-butyls-hydroxy phenyl) propionic ester, β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid isooctanol ester, one or more mixture in β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propanoic acid.The typical but non-limiting example of described combination has: 2,4,6-tri-butyl-phenol and 2, the combination of 6-di-t-butyl-4-nonyl phenol, 2,4, the combination of 6-tri-butyl-phenol and 2,6 ditertiary butyl p cresol, 2,4, the combination of 6-tri-butyl-phenol and iso-octyl-3-(3,5 di-t-butyls-hydroxy phenyl) propionic ester, iso-octyl-3-(3,5 di-t-butyls-hydroxy phenyl) combination etc. of propionic ester and β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid isooctanol ester.
When antioxidant contains at least two, constitute composite antioxidant, by the synergism between different antioxidant, it is possible to obtain outstanding antioxygen property, additional extreme pressure, wear-resistant and antifriction performance can also be obtained simultaneously.
Wherein, described antioxidant is 2,4,6-tri-butyl-phenol, 2,6-di-t-butyl-4-nonyl phenol, 2,6 ditertiary butyl p cresol, iso-octyl-3-(3,5 di-t-butyls-hydroxy phenyl) propionic ester, β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid isooctanol ester, the mixture of more than three kinds in β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propanoic acid.The Typical non-limiting example of described combination has: 2,4,6-tri-butyl-phenol, 2,6-di-t-butyl-4-nonyl phenol and 2, the combination of 6-ditertbutylparacresol, 2,4,6-tri-butyl-phenol, 2, the combination of 6-di-t-butyl-4-nonyl phenol and iso-octyl-3-(3,5 di-t-butyls-hydroxy phenyl) propionic ester, 2,4, the combination etc. of 6-tri-butyl-phenol, iso-octyl-3-(3,5 di-t-butyls-hydroxy phenyl) propionic ester and β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propanoic acid.
Antioxidant adopts antioxidant three kinds different to carry out compound, it is possible to improves oil product antioxygenic property at different temperatures, especially strengthens antioxidation at high temperature.
It is preferred that containing DBPC 2,6 ditertiary butyl p cresol, β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid isooctanol ester and β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propanoic acid；
Preferably, described antioxidant is the mixture of 2,6 ditertiary butyl p cresol, β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid isooctanol ester and β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propanoic acid.These three antioxidant can realize the antioxygenic property under different temperatures respectively, such that it is able to improve gear grease antioxidant effect under the harsh operating mode such as high speed, high temperature, high pressure.
Organic-molybdenum is a kind of multi-functional additive of self-rehabilitation with good antioxygen and extreme-pressure anti-wear effect, it is possible to reduce the sulfur corrosion to metal material.Additionally, under the operating mode that high speed, high temperature, high pressure etc. are harsh, friction surface is badly damaged, form rough friction surface, organic-molybdenum under localized hyperthermia's condition of high voltage with wear surface effect, micro-bulge be rolled produce plastic deformation, groove is filled and led up by micro-theomorphism, rough friction surface is formed more smooth friction surface by break-in again, namely friction perished surface is had a degree of repair, thus reducing abrasion.
Additionally, by the synergism of antioxidant with organic-molybdenum, improve this additive of self-rehabilitation antioxygenic property at different temperatures, especially the antioxygenic property under hot conditions such that it is able to make organic-molybdenum show good self-healing properties under harsh operating mode.
Preferably, described organic-molybdenum is two (2-ethylhexyl) molybdenum dithiophosphates or sulfuration dialkyldithiocarbamacompositions oxygen molybdenum；
Preferably, described organic-molybdenum is two (2-ethylhexyl) molybdenum dithiophosphate, not only has good oil-soluble and antifriction antiwear, also under harsh operating mode, friction perished surface is had good repair.
Wherein, it is one or more in triphenyl phosphate, alkyl phosphate, polyphosphoric acid, fatty acid methyl ester, phosphamide, aryl phosphoric acids amine, organic sulfur phosphorus compound, phosphorodithioate, organic boric acid ester that described antiwear additive contains antiwear additive A, described antiwear additive A；
Preferably, described antiwear additive is possibly together with organic zinc；
Preferably, in described antiwear additive, organic zinc: the weight ratio of antiwear additive A is 1～2:1, it is preferably 1.15～1.8:1, more preferably 1.15～1.5:1, is further preferably 1.19:1, organic zinc: the weight ratio of antiwear additive A can also be 1.3:1,1.5:1,1.6:1,1.7:1 or 1.8:1；
Preferably, described organic zinc is one or more in zinc diamyldithiocarbamate, two (2-ethylhexyl) zinc dithiophosphate, two (2-butyl octyl) zinc dithiophosphate.
Wherein, described extreme pressure agent is one or more in sulfide aliphatic acid ester, sulfuration triglyceride, sulfurized hydrocarbons, sulfide aliphatic acid.
Wherein, the percentage by weight of described additive of self-rehabilitation is 4～7%, it is preferred to 6%.
Oil product adds antioxidant, it is possible to suppress the oxidizing process of oil product, the passive metal catalytic action to oil oxidation, reach to extend oil product and use and protect the purpose of machine.The mass fraction of described antioxidant is 60～70%, it is preferred to 60～68%, more preferably 60～65%；It is particularly preferred as 62%, 63%, 64%, 65%, 66%, 67% or 68%.
Wherein, the amount of antioxidant accounts for more than the 60% of whole additive, the content being significantly larger than in prior art antioxidant is (in prior art, the content of antioxidant is the highest less than the 20% of additive total amount), it is possible to meet the antioxidation requirement under harsh operating mode (such as high speed, high temperature, high pressure etc.).
Antiwear additive can make lubricant form protecting film when light load and moderate duty at friction surface, it is prevented that abrasion.Preferably, the mass fraction of described antiwear additive is 12～23%, it is preferred to 15～20%；It is particularly preferred as 13%, 14%, 16%, 18% or 22%；
Extreme pressure agent can make lubricant under the friction condition of low speed high load or high speed impact load, namely prevents rubbing surface from sintering when so-called extreme pressure, abrades.The mass fraction of extreme pressure agent is preferably 6～8%, for instance 5%, 6%, 7% or 8%.
Organic-molybdenum under localized hyperthermia's condition of high voltage with wear surface effect, micro-bulge is rolled producing plastic deformation, groove is filled and led up by micro-theomorphism, rough friction surface is formed more smooth friction surface by break-in again, namely friction perished surface had a degree of repair, thus reducing abrasion.Preferably, the mass fraction of described organic-molybdenum is 5～18%, it is preferred to 10～15%；It is particularly preferred as 6%, 8%, 11%, 13%, 16% or 18%.
Wherein, the NLGI grade of described anti-spot corrosion selfreparing gear grease is 00#～2#.
The additive of self-rehabilitation prepared in advance in the preparation, only need to be mixed by anti-spot corrosion selfreparing gear grease of the present invention with gear grease body；Wherein, the preparation method of additive of self-rehabilitation, comprise the steps: antioxidant, antiwear additive, extreme pressure agent and organic-molybdenum to be mixed by proportioning, heating, stir, namely obtain additive of self-rehabilitation；
Preferably, the temperature of described heating is 50～70 DEG C, it is preferred to 55～65 DEG C, more preferably 60～65 DEG C；Such as 52 DEG C, 55 DEG C, 62 DEG C, 65 DEG C, 66 DEG C, 67 DEG C, 68 DEG C or 69 DEG C；
Preferably, the time of described stirring is 30～60min, it is preferred to 35～55min, more preferably 40～50min, is further preferably 40～45min；Such as 32min, 35min, 38min, 42min, 48min, 52min, 54min, 57min, 58min or 59min.
Above-mentioned form of presentation " containing " can be open expression way, namely this additive of self-rehabilitation is except containing antioxidant, antiwear additive, extreme pressure agent and organic-molybdenum, other conven-tional adjuvants can also be contained, such as oiliness improver, anti-foaming agent etc., the concrete of these conven-tional adjuvants is added with reference to prior art.It addition, " containing " is it can be appreciated that enclosed expression way, it is equivalent to " by ... composition ".
Compared with prior art, it is an advantage of the current invention that: the additive of self-rehabilitation in this anti-spot corrosion selfreparing gear grease does not add mineral or synthetic base oil, adding the content of antioxidant so that in this additive of self-rehabilitation, antioxidant plays a part base oil simultaneously simultaneously.By increasing the content of antioxidant, it is possible to meet the antioxidation requirement under harsh operating mode (such as high speed, high temperature, high pressure), it is prevented that oil product lost efficacy because of oxidation, extend the useful life of oil product.
Performance based on above-mentioned additive of self-rehabilitation, this anti-spot corrosion selfreparing gear grease has preferably antioxygen property and extreme pressure anti-wear at different temperatures, and gear surface can also be played a degree of repair by this anti-spot corrosion selfreparing gear grease, thus effectively preventing gear pitting corrosion, extend the service life of gear.
Sum it up, the performance of this anti-spot corrosion selfreparing gear grease depends primarily on additive of self-rehabilitation, the advantage of this additive of self-rehabilitation be mainly reflected in following some:
1, this additive of self-rehabilitation is a kind of good liquid additive of oil-soluble, has the good compatibility with gear grease, stablizes unchanged after placing 2 months；
2, this additive of self-rehabilitation adds to gear grease, can be effectively improved the extreme pressure anti-wear of gear grease.
3, this additive of self-rehabilitation uses two (2-ethylhexyl) molybdenum dithiophosphate, not only has good oil-soluble and antifriction antiwear, also under harsh operating mode, friction perished surface is had good repair.
4, this additive of self-rehabilitation replaces the base oil of conventional additive as dispersible carrier using substantial amounts of antioxidant, it is a kind of breakthrough for traditional additive composition thinking being main component with extreme pressure anti-wear additives or oil (synthesis) base oil, has simultaneously and good prevent oil oxidation to lose efficacy, extend the function of oil product useful life.
5, this additive of self-rehabilitation contains multiple antioxidant, such that it is able to meet the antioxidation requirement of different operating mode, different temperatures scope.
6, this additive of self-rehabilitation comprises organic-molybdenum and substantial amounts of antioxidant, synergism by antioxidant Yu organic-molybdenum, improve additive antioxygenic property at different temperatures, especially the antioxygenic property under hot conditions such that it is able to make organic-molybdenum show good self-healing properties under harsh operating mode.It can be seen that this additive of self-rehabilitation joins in gear grease, gear wear surface there is good repairing effect by gear stand testing experiment.
Accompanying drawing explanation
The SEM that Fig. 1 is the gear wear surface after 3h (load is 57kg) tested by gear in the gear grease of comparative example 1 schemes；
The SEM that Fig. 2 is the gear wear surface after 3h (load is for 57kg) tested by worn-out gear (with the gear after 57kg load test 3h in the gear grease of comparative example 1) in the gear grease of embodiment 1 schemes.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment 1
The anti-spot corrosion selfreparing gear grease of the present embodiment, containing gear grease body and additive of self-rehabilitation.Wherein the percentage by weight of gear grease body is 94%, and the percentage by weight of additive of self-rehabilitation is 6%.Its NLGI consistency grade is 00#.
The gear grease body of the present embodiment is containing, for example the component of lower parts by weight:
Wherein, base oil is the mixture of 1-150BS and PB-2400, and with the gross mass of base oil for 100%, the mass fraction of 1-150BS is 66.1%, and the mass fraction of PB-2400 is 33.9%；Thickening agent is lithium soap；Extreme pressure agent is sulfide isobutene T321；Antirust agent is dinonylnaphthalene sulfonic acid calcium.
The additive of self-rehabilitation of the present embodiment, is made up of the component of following percentage by weight:
Wherein, antioxidant is the mixture of three kinds of antioxidant, with the gross mass of additive of self-rehabilitation for 100%, specifically containing, for example three kinds: β-(the 3 of lower mass fraction, 5-di-tert-butyl-hydroxy phenyl) propanoic acid isooctanol 52.96%, 2,6-ditertbutylparacresol 7.67%, β-positive octadecanol ester 2.86% of (3,5-di-tert-butyl-hydroxy phenyl) propanoic acid.
Antiwear additive A is the mixture of two kinds of antiwear additives, with the gross mass of additive of self-rehabilitation for 100%, specifically includes two kinds of antiwear additives of following percentage by weight: triphenyl phosphate 6.22% and aryl phosphoric acids amine 3.89%.
Extreme pressure agent is specially sulfide aliphatic acid ester；Organic zinc is specially two (2-ethylhexyl) zinc dithiophosphate；Organic-molybdenum is specially two (2-ethylhexyl) molybdenum dithiophosphate.
The preparation process of the additive of self-rehabilitation of the present embodiment is: antioxidant, antiwear additive, extreme pressure agent and organic-molybdenum are mixed by proportioning, heat and control temperature in 50～70 DEG C, such as 55 DEG C, 60 DEG C, 65 DEG C, stirring 30～60min, mixing time only need to meet each component mix homogeneously, it is thus achieved that additive of self-rehabilitation.
The additive of self-rehabilitation of the present embodiment is added in above-mentioned gear grease body, obtains anti-spot corrosion selfreparing gear grease.
Embodiment 2
The anti-spot corrosion selfreparing gear grease of the present embodiment, containing gear grease body and additive of self-rehabilitation.Wherein gear grease body and the mass fraction of additive of self-rehabilitation are with embodiment 1.Its NLGI consistency grade is 0#.
Wherein, gear grease body is containing, for example the component of lower parts by weight:
The wherein similar embodiment 1 of kind of the kind of base oil and ratio, thickening agent, extreme pressure agent and antirust agent.
The additive of self-rehabilitation of the present embodiment, is made up of the component of following mass fraction:
Wherein, the concrete material of antioxidant, antiwear additive A, extreme pressure agent, organic zinc and organic-molybdenum is with embodiment 1；It addition, the preparation method reference example 1 of the present embodiment additive of self-rehabilitation.
The additive of self-rehabilitation of the present embodiment is added in above-mentioned gear grease body, obtains anti-spot corrosion selfreparing gear grease.
Embodiment 3
The anti-spot corrosion selfreparing gear grease of the present embodiment, containing gear grease body and additive of self-rehabilitation.Wherein gear grease body and the mass fraction of additive of self-rehabilitation are with embodiment 1.Its NLGI consistency grade is 1#.
Wherein, gear oil body is containing, for example the component of lower parts by weight:
The wherein similar embodiment 1 of kind of the kind of base oil and ratio, thickening agent, extreme pressure agent and antirust agent.
The additive of self-rehabilitation of the present embodiment, is made up of the component of following percentage by weight:
Wherein, organic-molybdenum is sulfuration dialkyldithiocarbamacompositions oxygen molybdenum；The concrete material of antioxidant, antiwear additive A, extreme pressure agent and organic zinc is such as embodiment 1.
The preparation method reference example 1 of the present embodiment additive of self-rehabilitation.
The additive of self-rehabilitation of the present embodiment is added in above-mentioned gear grease body, obtains anti-spot corrosion selfreparing gear grease.
Embodiment 4
The anti-spot corrosion selfreparing gear grease of the present embodiment, containing gear grease body and additive of self-rehabilitation.Wherein gear grease body and the mass fraction of additive of self-rehabilitation are with embodiment 1.Its NLGI consistency grade is 2#.
Wherein, gear oil body is containing, for example the component of lower parts by weight:
The wherein similar embodiment 1 of kind of the kind of base oil and ratio, thickening agent, extreme pressure agent and antirust agent.
The additive of self-rehabilitation of the present embodiment, is made up of the component of following percentage by weight:
Wherein, organic-molybdenum is sulfuration dialkyldithiocarbamacompositions oxygen molybdenum；The concrete material of antioxidant, antiwear additive A, extreme pressure agent and organic zinc is such as embodiment 1.
The additive of self-rehabilitation of the present embodiment is added in above-mentioned gear oil body, obtains abrasion selfreparing gear oil.
Embodiment 5
The present embodiment difference from Example 1 is in that: be added in the gear grease body of embodiment 1 by the additive of self-rehabilitation of embodiment 1, obtains anti-spot corrosion selfreparing gear grease.Wherein, the mass fraction of gear grease body is 97%, and the mass fraction of additive of self-rehabilitation is 3%.Its NLGI grade is 00#.
The formula of the additive of self-rehabilitation of the present embodiment and preparation are such as embodiment 1.
Embodiment 6
The present embodiment difference from Example 1 is in that: be added in the gear grease body of embodiment 1 by the additive of self-rehabilitation of embodiment 1, obtains anti-spot corrosion selfreparing gear grease.Wherein, the mass fraction of gear grease body is 92%, and the mass fraction of additive of self-rehabilitation is 8%.Its NLGI grade is 00#.
The formula of the additive of self-rehabilitation of the present embodiment and preparation are such as embodiment 1.
Embodiment 7
The present embodiment difference from Example 3 is in that: be added in the gear grease body of embodiment 3 by the additive of self-rehabilitation of embodiment 3, obtains anti-spot corrosion selfreparing gear grease.Wherein, the mass fraction of gear grease body is 97%, and the mass fraction of additive of self-rehabilitation is 3%.Its NLGI grade is 1#.
The formula of the additive of self-rehabilitation of the present embodiment and preparation are such as embodiment 3.
Embodiment 8
The present embodiment difference from Example 3 is in that: be added in the gear grease body of embodiment 3 by the additive of self-rehabilitation of embodiment 3, obtains anti-spot corrosion selfreparing gear grease.Wherein, the mass fraction of gear grease body is 92%, and the mass fraction of additive of self-rehabilitation is 8%.Its NLGI grade is 1#.
The formula of the additive of self-rehabilitation of the present embodiment and preparation are such as embodiment 3.
Comparative example 1
The gear grease of the present embodiment is containing only there being gear grease body, it does not have add additive of self-rehabilitation.
Gear grease body is containing, for example the component of lower parts by weight:
The wherein similar embodiment 1 of kind of the kind of base oil and ratio, thickening agent, extreme pressure agent and antirust agent.Its NLGI grade is 00#.
Respectively the gear grease of embodiment 1 and comparative example 1 is applied to gear, and respectively the abrasion condition of gear surface is verified.Fig. 1 is the scanning electron microscope (SEM) photograph (SEM) that the gear wear surface after 3h (load is 57kg) tested by gear in the gear grease of comparative example 1；Fig. 2 is the scanning electron microscope (SEM) photograph (SEM) that the gear wear surface after 3h (load is for 57kg) tested by worn-out gear (namely with the gear after the load test 3h of 57kg in the gear grease of comparative example 1) in the gear grease of embodiment 1.
By using the self-healing properties of gear lubrication engine bench test gear grease, as shown in Figure 1,3h (load is 57kg) tested by gear under gear grease body lubricating condition, and significantly block peeling occurs in gear surface, and surface roughness is bigger；As shown in Figure 2, after adding additive of self-rehabilitation, additive of self-rehabilitation under localized hyperthermia, high pressure with wear surface effect, block position of peeling off produces plastic deformation, filled and led up the pit of block peeling by micro-theomorphism, coarse block exfoliation surface is again formed more regular wire by break-in and abrades, and surface roughness diminishes, namely friction perished surface is made to obtain a degree of reparation by micro-theomorphism of additive of self-rehabilitation, thus playing the effect reducing abrasion with preventing spot corrosion.
Four-ball tester is adopted to test the extreme pressure and antiwear behavior of each embodiment gear grease respectively, after tested, compared with comparative example 1, the P of the anti-spot corrosion selfreparing gear grease of embodiment 1～8B-maximum nonseizure load, PD-sintering load is all effectively improved, and grinds (60kgf, 80min) wear scar diameter with duration and is greatly lowered.Wherein, relative to comparative example 1, improvement result such as table 1 of each anti-spot corrosion selfreparing gear grease performance of embodiment 1～8:
The performance improvement effect of table 1. embodiment 1～8 anti-spot corrosion selfreparing gear grease relative contrast's example 1
As known from Table 1, after with the addition of additive of self-rehabilitation in gear grease, maximum nonseizure load (PB) and sintering load (PD) be all significantly improved, can substantially reduce mill speckle simultaneously；Illustrate that additive of self-rehabilitation can be effectively improved the extreme pressure and antiwear behavior of gear grease.
Above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the thought of the present invention, all will change in specific embodiments and applications, and this specification content should not be construed as limitation of the present invention.
Claims (10)
1. an anti-spot corrosion selfreparing gear grease, it is characterised in that: by weight percentage, its contain 92～97% gear grease body and 3～8% additive of self-rehabilitation；
With the gross mass of described additive of self-rehabilitation for 100%, described additive of self-rehabilitation is containing, for example the component of lower percentage by weight:
2. anti-spot corrosion selfreparing gear grease as claimed in claim 1, it is characterised in that: described gear grease body is containing, for example the component of lower parts by weight:
3. anti-spot corrosion selfreparing gear grease as claimed in claim 2, it is characterised in that: 40 DEG C of kinematic viscositys of described base oil are 1000～3500mm2/s；
Preferably, described base oil be in paraffin base mineral oil, intermediate base mineral oil, poly alpha olefin, polybutene, polyisobutylene, Esters oil two or more；
Preferably, described thickening agent is one or more in lithium soap, compound lithium soap, calcium complex soap, compound aluminium soap, composite sulfoacid calcium soap, bentonite, polyureas；
Preferably, described extreme pressure agent is one or more in sulfide aliphatic acid ester, sulfuration triglyceride, sulfurized hydrocarbons, sulfide aliphatic acid, borate；
Preferably, described antirust agent is one or more in organic carboxyl acid, organic sulfonate, organic amine.
4. the anti-spot corrosion selfreparing gear grease as described in any one of claims 1 to 3, it is characterized in that: described antioxidant is 2, 4, 6-tri-butyl-phenol, 2, 6-di-t-butyl-4-nonyl phenol, 2, 6-ditertbutylparacresol, iso-octyl-3-(3, 5 di-t-butyls-hydroxy phenyl) propionic ester, β-(3, 5-di-tert-butyl-hydroxy phenyl) propanoic acid isooctanol ester, β-(3, 5-di-tert-butyl-hydroxy phenyl) one or more mixture in the positive octadecanol ester of propanoic acid, the preferably mixture of more than three kinds, it is preferred that containing 2, 6-ditertbutylparacresol, β-(3, 5-di-tert-butyl-hydroxy phenyl) propanoic acid isooctanol ester and β-(3, 5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propanoic acid；
Preferably, described antioxidant is the mixture of 2,6 ditertiary butyl p cresol, β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid isooctanol ester and β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propanoic acid.
5. the anti-spot corrosion selfreparing gear grease as described in any one of claims 1 to 3, it is characterised in that: described organic-molybdenum is two (2-ethylhexyl) molybdenum dithiophosphates or sulfuration dialkyldithiocarbamacompositions oxygen molybdenum；
Preferably, described organic-molybdenum is two (2-ethylhexyl) molybdenum dithiophosphate.
6. the anti-spot corrosion selfreparing gear grease as described in any one of claims 1 to 3, it is characterized in that: it is one or more in triphenyl phosphate, alkyl phosphate, polyphosphoric acid, fatty acid methyl ester, phosphamide, aryl phosphoric acids amine, organic sulfur phosphorus compound, phosphorodithioate, organic boric acid ester that described antiwear additive contains antiwear additive A, described antiwear additive A；
Preferably, described antiwear additive is possibly together with organic zinc；
Preferably, in described antiwear additive, organic zinc: the weight ratio of antiwear additive A is 1～2:1, it is preferred to 1.15～1.8:1, more preferably 1.15～1.5:1, further it is preferably 1.19:1；
Preferably, described organic zinc is one or more in zinc diamyldithiocarbamate, two (2-ethylhexyl) zinc dithiophosphate, two (2-butyl octyl) zinc dithiophosphate.
7. the anti-spot corrosion selfreparing gear grease as described in any one of claims 1 to 3, it is characterised in that: described extreme pressure agent is one or more in sulfide aliphatic acid ester, sulfuration triglyceride, sulfurized hydrocarbons, sulfide aliphatic acid.
8. anti-spot corrosion selfreparing gear grease as claimed in claim 1, it is characterised in that: the percentage by weight of described additive of self-rehabilitation is 4～7%, it is preferred to 6%.
9. anti-spot corrosion selfreparing gear grease as claimed in claim 1, it is characterised in that: the mass fraction of described antioxidant is 60～70%, it is preferred to 60～68%, more preferably 60～65%；
Preferably, the mass fraction of described antiwear additive is 12～23%, it is preferred to 15～20%；
Preferably, the mass fraction of described extreme pressure agent is 6～8%, it is preferred to 7%；
Preferably, the mass fraction of described organic-molybdenum is 5～18%, it is preferred to 10～15%.
10. anti-spot corrosion selfreparing gear grease as claimed in claim 1, it is characterised in that: the NLGI grade of described anti-spot corrosion selfreparing gear grease is 00#～2#.
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| CN107164023A (en) * | 2017-06-15 | 2017-09-15 | 合肥市闵葵电力工程有限公司 | It is a kind of for lube oil additive of electromechanical equipment and preparation method thereof |
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| CN107779246A (en) * | 2017-09-30 | 2018-03-09 | 镇江中焱数控设备有限公司 | A kind of preparation method of Digit Control Machine Tool special lube |
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| CN107815337A (en) * | 2017-09-30 | 2018-03-20 | 镇江中焱数控设备有限公司 | A kind of preparation method of Digit Control Machine Tool special lube |
| CN111057608A (en) * | 2018-10-16 | 2020-04-24 | 上海赛思特新能源科技有限公司 | Metal anti-wear repair lubricant and preparation method thereof |
| CN109679733A (en) * | 2018-12-19 | 2019-04-26 | 无锡飞天润滑油科技股份有限公司 | A kind of optical instrument lubricating grease and preparation method thereof |
| CN115023484A (en) * | 2019-12-20 | 2022-09-06 | 道达尔能源一技术公司 | Lubricating composition for gears |
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