CN105623797A - Weak-smell low-corrosion gear lubricant additive composition and preparation method thereof - Google Patents

Weak-smell low-corrosion gear lubricant additive composition and preparation method thereof Download PDF

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CN105623797A
CN105623797A CN201610071493.7A CN201610071493A CN105623797A CN 105623797 A CN105623797 A CN 105623797A CN 201610071493 A CN201610071493 A CN 201610071493A CN 105623797 A CN105623797 A CN 105623797A
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component
compositions
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additive composition
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魏奇
代丽
徐超
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JINZHOU HUIFA TIANHE CHEMICAL CO Ltd
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JINZHOU HUIFA TIANHE CHEMICAL CO Ltd
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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
    • C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
    • 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
    • C10M2205/003—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions 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
    • C10M2207/10—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
    • C10M2207/127—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 polycarboxylic
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    • 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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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/288—Partial esters containing free carboxyl groups
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    • 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
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/08—Amides
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    • 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
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    • 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
    • C10M2215/224—Imidazoles
    • C—CHEMISTRY; METALLURGY
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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
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
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    • 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
    • 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
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/106—Thiadiazoles
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • 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
    • 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
    • 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
    • C10M2223/047—Thioderivatives not containing metallic elements
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • 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
    • C10M2223/049—Phosphite
    • 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
    • C10M2227/061—Esters derived from boron
    • 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
    • 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
    • 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
    • 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
    • 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
    • C10N2030/40—Low content or no content compositions
    • C10N2030/41—Chlorine free or low chlorine content compositions

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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

A weak-smell low-corrosion gear lubricant additive composition and a preparation method thereof comprise the following materials: an extreme pressure agent, an anti-wear agent, a friction modifier, an antirust agent, a metal deactivator, an antioxidant, and mineral base oil. During preparation, in a blending kettle, the materials are mixed well to transparency to form a gear lubricant additive. The invention has the advantages that this composition has weak smell, is free of stimulus and fluorine, has low environmental damage, and has good extreme pressure and anti-wear performances, emulsion resistance, anti-rust and anti-corrosion performance, oxidation resistance, and anti-foam performance.

Description

A kind of low taste, low corrosion additive composition for gear lubricating oil and preparation method thereof
Technical field
The invention belongs to lube oil additive technical field, relate to a kind of additive composition for gear lubricating oil and preparation method thereof, particularly to a kind of low taste, low corrosion additive composition for gear lubricating oil and preparation method thereof.
Background technology
In traditional additive composition for gear lubricating oil, extreme pressure agent component adopts T321 sulfide isobutene to be host, chloride sulfide isobutene and not chloride high-pressure process sulfide isobutene it is divided into according to its mode of production difference, its product has strong impulse abnormal smells from the patient, suck a certain amount of after can produce dyspnea, respiratory tract there is stimulation, it is easy to cause that people's is uncomfortable.
US2013149191A1 discloses " a kind of gear oil additive composition of resistance to copper corrosion performance ", and said composition is at dialkyl polysulfide, or thing dialkyl polysulfide and thiadiazoles mixture; Dialkyl polysulfide owing to selecting has the defect of copper corrosion poor performance, therefore, adds ashless phosphorous abrasion composite corrosion inhibitor, improves copper corrosion performance in axletree and variator. But this compositions of additives is also undesirable in rust resistance and corrosion resistance and non-oxidizability and anti-foaming property so that it is application is limited to.
Summary of the invention
The technical problem to be solved in the present invention there is provided a kind of low taste, low corrosion additive composition for gear lubricating oil and preparation method thereof, this additive composition for gear lubricating oil abnormal smells from the patient is little, non-stimulated, not chloride, environmental hazard is little, and there is good extreme pressure and antiwear behavior, resistance to emulsion, rust resistance and corrosion resistance, non-oxidizability and anti-foaming property.
The technical solution of the present invention is:
A kind of low taste, low corrosion additive composition for gear lubricating oil, percentage composition consists of the following composition by weight:
Component A extreme pressure agent, for olefin polysulfide, in compositions, the content of component A is 40%��90%;
Component B at least one antiwear additive, at least one in alkyl phosphate and derivant, di-n-butyl phosphite, dialkyl dithiophosphate, amine sulfuric-phosphoric diester and derivant thereof, in compositions, the content of component B is 7%��20%;
Component C at least one friction improver, at least one in organic-molybdenum salt, fatty acid ester, triethyl borate, in compositions, the content of component C is 0.5%��10%;
Component D at least one antirust agent, at least one in alkenyl succinic acid ester, succimide, fatty acid amide, in compositions, the content of component D is 0.5%��15%;
Component E at least one metal deactivator, for high base number nitrogen-containing heterocycle compound and thiadiazoles derivative, or benzotriazole derivant, or their any mixture, in compositions, the content of component E is 0.5%��10%;
Component F at least one antioxidant, at least one in phenolic ester type antioxidant, dinonyldiphenylamine, sulfenyl phenolate, in compositions, the content of component F is 1%��10%;
A certain amount of mineral base oil of component G, in compositions, the content of component G is 1%��40%.
Further, low taste, low corrosion gear lubricating oil composition, percentage composition consists of the following composition by weight:
In compositions, the content of component A is 40%��70%;
In compositions, the content of component B is 8%��15%;
In compositions, the content of component component C is 1%��7%;
In compositions, the content of component D is 1%��10%;
In compositions, the content of component E is 1%��9%;
In compositions, the content of component F is 2%��8%;
In compositions, the content of component G is 5%��33%.
Described component A olefin polysulfide is dialkyl group olefin polysulfide, and its structure is R1-Sn-R2, wherein n is the integer of 2��10, R1And R2For C4��C18Straight chain or branched alkyl group, its active sulfur components accounts for more than the 90m% of total sulfur.
The mass ratio of described thiadiazoles derivative and high base number nitrogen-containing heterocycle compound is 1:1��7:3.
A kind of low taste, low corrosion additive composition for gear lubricating oil preparation method, it specifically comprises the following steps that
In blending kettle, add component A extreme pressure agent, component B antiwear additive, component C friction improver, component D antirust agent, component E metal deactivator, component F antioxidant, component G mineral base oil, stir 0.5h, then heat to 50 DEG C��60 DEG C, stirring 4h��5h, to mixture homogeneous transparent.
Beneficial effects of the present invention:
Additive component in additive composition for lubricant oil and the mutual relation between each component have been carried out strict screening, and the dosage that each component added has carried out strict control, with olefin polysulfide for host, without penetrating odor, its active sulfur components is high, account for total sulfur 90m% and more than, have more excellent extreme pressure and antiwear behavior, oil-soluble is better and compatibility good, and without penetrating odor, not chloride, there is the feature of low taste, environmental protection; By adding high base number nitrogen-containing heterocycle compound metal deactivator and composite with antiwear additive, friction improver, antirust agent and antioxidant lube oil additive, not only solve copper corrosion problem, improve rust-preventing characteristic and the non-oxidizability of oil product simultaneously, make this product have broad application prospects.
This lube oil additive is easy to allotment, and production cost is low; Suitable with external similar grade product as its resistance to emulsion of gear lubricating oil composition, rust resistance and corrosion resistance, non-oxidizability and anti-foaming property, and it is relatively low to add dosage.
Specific embodiments
The additive composition for gear lubricating oil formula of the present invention is in Table 1:
Table 1 additive composition for gear lubricating oil formula
Product of the present invention all adds dosage with 4.0m% and joins in SAE80W/90 base oil, and its physical and chemical performance analysis result representative value is in Table 2:
Table 2 physical and chemical performance analysis result
Project Test result
Kinematic viscosity (100 DEG C), mm2/s 14.06
Apparent viscosity (-26 DEG C), mPa s 120610
Flash-point (opening), DEG C 210
Pour point, DEG C -32
Moisture, % Trace
Mechanical admixture, % 0.003
Embodiment 1
Additive composition for lubricant oil (I), percentage composition consists of the following composition by weight:
50.0% dialkyl group olefin polysulfide (component A), its structure is R1-Sn-R2, wherein n is the integer of 2��10, R1And R2For C4��C18Straight chain or branched alkyl group, its active sulfur components accounts for more than the 90m% of total sulfur;
12.0% dialkyl dithiophosphate (component B);
0.5% organic-molybdenum anti-friction composition (component C);
1.0% dodecenylsuccinic acid (component D);
5.0% thiadiazoles derivative (component E);
2.0% dinonyldiphenylamine and 2.0m% sulfenyl phenolate antioxidant (component F);
27.5%150SN neutral oil (component G).
Lubricant oil composite (II) is except component E is by 3.5m% thiadiazoles derivative, outside 1.5m% alkyl imidazoline derivatives substitutes, and all the other all same compositionss (I). The main performance of compositions (I) and compositions (II) is in Table 3.
The main performance of table 3 compositions (I) and compositions (II)
Embodiment 2
Additive composition for lubricant oil (III), percentage composition consists of the following composition by weight:
55% dialkyl group olefin polysulfide (component A), its structure is R1-Sn-R2, and wherein n is the integer of 2��10, and R1 and R2 is the straight chain of C4��C18 or branched alkyl group, and its active sulfur components accounts for more than the 90m% of total sulfur;
9% di-n-butyl phosphite (component B);
1.0% triethyl borate (component C);
1.5% alkenyl succinic acid half ester (component D);
7% methyl benzotriazazole (component E);
2.5% phenolic ester type antioxidant and 2.5% pungent butyl diphenylamines (component F);
21.5%150SN neutral oil (component G).
Except additive composition for lubricant oil (IV) is substituted by the commercially available T551 metal deactivator of 3.5%LZ5955A and 3.5% except component E, all the other all same compositionss (III). The main performance of compositions (III) and compositions (IV) is in Table 4.
The main performance of table 4 compositions (III) and compositions (IV)
Embodiment 3
Additive composition for lubricant oil (V), percentage composition consists of the following composition by weight:
60% dialkyl group olefin polysulfide (component A), its structure is R1-Sn-R2, and wherein n is the integer of 2��10, and R1 and R2 is the straight chain of C4��C18 or branched alkyl group, and its active sulfur components accounts for more than the 90m% of total sulfur;
5% alkyl phosphate derivative antiwear additive and 8% amine sulfuric-phosphoric diester (component B);
1.5% fatty acid methyl ester (component C);
1.0% alkenyl succinic acid ester and 1.0% fatty acid amide (component D);
8% commercially available Hitec4313 thiadiazole compound and 0.5% benzotriazole derivant (component E);
2% phenolic ester type antioxidant and 2% dinonyldiphenylamine (component F);
11%150SN neutral oil (component G).
Lubricating oil component (VI) except in component E, 8% commercially available Hitec4313 thiadiazole compound is substituted by the commercially available T581 metal deactivator of 4.0%Hitec4313 and 4.0%, all the other all same compositionss (V). The main performance of compositions (V) and compositions (VI) is in Table 5.
The main performance of table 5 compositions (V) and compositions (VI)
Test result indicate that: the additive composition for lubricant oil (I), (III) and (V) of the present invention, adopting the dialkyl group olefin polysulfide having no irritating odor is host, by replacing the part copper corrosion inhibitor in component E, add the composite of the nitrogenous multi-functional copper corrosion inhibitor of a kind of high base number and above-mentioned lube oil additive, from contrast test result, compositions of additives (II), (IV) and (VI) not only reduces the rank of copper corrosion, also improves rust-preventing characteristic and the non-oxidizability of oil product simultaneously.

Claims (5)

1. low taste, a low corrosion additive composition for gear lubricating oil, it is characterized in that:
Percentage composition consists of the following composition by weight:
Component A extreme pressure agent, for olefin polysulfide, in compositions, the content of component A is 40%��90%;
Component B at least one antiwear additive, at least one in alkyl phosphate and derivant, di-n-butyl phosphite, dialkyl dithiophosphate, amine sulfuric-phosphoric diester and derivant thereof, in compositions, the content of component B is 7%��20%;
Component C at least one friction improver, at least one in organic-molybdenum salt, fatty acid ester, triethyl borate, in compositions, the content of component C is 0.5%��10%;
Component D at least one antirust agent, at least one in alkenyl succinic acid ester, succimide, fatty acid amide, in compositions, the content of component D is 0.5%��15%;
Component E at least one metal deactivator, for high base number nitrogen-containing heterocycle compound and thiadiazoles derivative, or benzotriazole derivant, or their any mixture, in compositions, the content of component E is 0.5%��10%;
Component F at least one antioxidant, at least one in phenolic ester type antioxidant, dinonyldiphenylamine, sulfenyl phenolate, in compositions, the content of component F is 1%��10%;
Component G is mineral base oil, and in compositions, the content of component G is 1%��40%.
2. low taste according to claim 1, low corrosion additive composition for gear lubricating oil, it is characterized in that:
Percentage composition consists of the following composition by weight:
In compositions, the content of component A is 40%��70%;
In compositions, the content of component B is 8%��15%;
In compositions, the content of component component C is 1%��7%;
In compositions, the content of component D is 1%��10%;
In compositions, the content of component E is 1%��9%;
In compositions, the content of component F is 2%��8%;
In compositions, the content of component G is 5%��33%.
3. low taste according to claim 1, low corrosion additive composition for gear lubricating oil, it is characterized in that: described component A olefin polysulfide is dialkyl group olefin polysulfide, its structure is R1-Sn-R2, wherein n is the integer of 2��10, R1And R2For C4��C18Straight chain or branched alkyl group, its active sulfur components accounts for more than the 90m% of total sulfur.
4. low taste according to claim 1, low corrosion additive composition for gear lubricating oil, it is characterized in that: the mass ratio of described thiadiazoles derivative and high base number nitrogen-containing heterocycle compound is 1:1��7:3.
5. the preparation method of a kind of low taste as claimed in claim 1, low corrosion additive composition for gear lubricating oil, is characterized in that: specifically comprise the following steps that
In blending kettle, add component A extreme pressure agent, component B antiwear additive, component C friction improver, component D antirust agent, component E metal deactivator, component F antioxidant and component G mineral base oil, 0.5h is stirred under room temperature, condition of normal pressure, then heat to 50 DEG C��60 DEG C, stirring 4h��5h, to mixture homogeneous transparent.
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CN110225962A (en) * 2017-01-25 2019-09-10 出光兴产株式会社 Lubricating oil composition for transmission, method for lubricating transmission, and transmission
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