CN108559586A - A kind of automobile steering device gear rack special grease and preparation method thereof - Google Patents

A kind of automobile steering device gear rack special grease and preparation method thereof Download PDF

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Publication number
CN108559586A
CN108559586A CN201810495976.9A CN201810495976A CN108559586A CN 108559586 A CN108559586 A CN 108559586A CN 201810495976 A CN201810495976 A CN 201810495976A CN 108559586 A CN108559586 A CN 108559586A
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CN
China
Prior art keywords
steering device
gear rack
automobile steering
device gear
base oil
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Pending
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CN201810495976.9A
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Chinese (zh)
Inventor
谭忠飞
柳正明
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Jill Renco (hunan) Petrochemical Co Ltd
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Jill Renco (hunan) Petrochemical Co Ltd
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Priority to CN201810495976.9A priority Critical patent/CN108559586A/en
Publication of CN108559586A publication Critical patent/CN108559586A/en
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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
    • 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
    • C10M169/02—Mixtures of base-materials and thickeners
    • 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
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron oxides, acids or salts
    • 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
    • C10M2203/06—Well-defined aromatic compounds
    • C10M2203/065—Well-defined aromatic compounds 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
    • 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
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic 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
    • C10M2207/02—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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    • 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
    • C10M2207/126—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
    • C10M2207/1265—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 used as thickening agent
    • 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
    • C10M2207/128—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 containing hydroxy groups; Ethers thereof
    • C10M2207/1285—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 containing hydroxy groups; Ethers thereof used as thickening agents
    • 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
    • C10M2207/285—Esters of aromatic polycarboxylic acids
    • C10M2207/2855—Esters of aromatic polycarboxylic acids 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
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • 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
    • C10M2215/02—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
    • 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
    • C10M2219/04—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
    • 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
    • C10M2219/068—Thiocarbamate metal salts
    • 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
    • C10M2223/045—Metal containing thio derivatives
    • 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
    • C10N2030/08—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
    • 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
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

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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 kind of automobile steering device gear rack special grease and preparation method thereof of the present invention is made of the raw material of following mass percent：Account for the base oil of lubricating grease gross weight 60~85%；Thickening agent is the unitary organic acid for the C12 C22 for accounting for lubricating grease gross weight 7 15%, 0.2 1.0% boric acid, 1.3 2.5% monohydrate lithium hydroxide powder；Additive is the antioxidant for accounting for lubricating grease gross weight 0.5 1.0%, 0.3 1.0% antirust agent, 0.5 2.0% dialkyl dithiophosphate and 1.5 3.0% the dialkylthiocarbamate present invention compared with the existing technology, has the following advantages compared with the prior art：Using contactor pressure reaction still saponification, lithium hydroxide powder and boric acid powder are directly used, and does not have to corresponding aqueous solution, excessive kettle tendency is eliminated in production process, is saved a large amount of dehydrations, is substantially increased saponification efficiency, shorten the production time, and technique is more controllable, product quality is stablized.

Description

A kind of automobile steering device gear rack special grease and preparation method thereof
Technical field
The present invention relates to technical field of lubricating grease, specially a kind of automobile steering device gear rack special grease and its system Preparation Method.
Background technology
Rack and pinion steering gear is of low cost since its is simple in structure, and steering is sensitive, and small feature is on automobile It is used widely.The lubricating grease of lubrication steering gear gear rack is typically chosen in lithium saponify general in the market or general Molybdenum disulfide lithium saponify.This kind of lubricating grease has lubricating life short, and antifriction effect is poor, the narrow disadvantage of use temperature range.But With the development of automobile industry, the requirement to automobile steering device maneuvering performance also increasingly improves.In order to ensure vehicle in any work There is ideal control stability under condition, can be free and relaxed when steering wheel rotation under Parking situation, again when running at high speed It will not feel that light shakiness, steering gear are turned by the electric boosted rack-and-pinion of initial purely mechanic pinion and-rack till now To system stages.Requirement of the more intelligent electric boosted rack and pinion steering gear to lubricating grease is higher and higher, more sets Meter personnel wish that electric booster steering device torque in operation process is lower, operation is more stable, noise is lower, cryogenic property is excellent It is different, the service life is longer etc..For this purpose, it is broad to invent a kind of use temperature range, high lubricating effect, lifelong special of service life It is particularly important with lubricating grease.
Invention content
The present invention in order to overcome the deficiencies of the prior art, designs Special lubricating between a kind of automotive sunshade panel torsion shaft and clamp spring Fat.Good with greasy property, smell is small, and point oil is few, and anti abrasive advantage, preparation method is simple, is readily produced.
A kind of automobile steering device gear rack special grease of the present invention, is made of the raw material of following mass percent： Account for the base oil of lubricating grease gross weight 60~85%；Thickening agent is the unitary organic acid for the C12-C22 for accounting for lubricating grease gross weight 7-15%, The boric acid of 0.2-1.0%, the monohydrate lithium hydroxide powder of 1.3-2.5%；Additive is to account for resisting for lubricating grease gross weight 0.5-1.0% Oxygen agent, the antirust agent of 0.3-1.0%, the dialkyl dithiophosphate of 0.5-2.0% and the dialkyl ammonia of 1.5-3.0% Base formates.
The base oil is Group III hydrogenated base oil, poly-a-olefin oil, the alkane that 40 DEG C of kinematic viscosity are 46~100mm2/s At least one of base naphthalene and trimellitic acid esters oil, pour point are not more than -25 DEG C.
The unitary organic acid is at least one of 12- hydroxy stearic acids, stearic acid.
The antioxidant is at least one of amine antioxidants, phenolic antioxidant.
The amine antioxidants are at least one of di-iso-octyldiphenylamine, octyl/butyl diphenylamines.Phenols antioxygen Agent is at least one in 2,6- di-tert-butyl methyl phenols, 3,5- di-tert-butyl-hydroxy phenyl propionic acid n-octadecyl alcohol esters Kind.
The antirust agent is at least one of benzotriazole, dinonyl naphthalene sulfonate barium.
The dialkyl dithiophosphate is molybdenum dialkyl-dithiophosphate, in zinc dialkyl dithiophosphate extremely Few one kind.
The dialkylthiocarbamate is dialkylthiocarbamate molybdenum, dialkyl thiocarbamic acid At least one of salt zinc, dialkylthiocarbamate antimony.
A kind of preparation method of automobile steering device gear rack special grease, using following processing step：
(1) base oil of base oil total amount 1/3 will be accounted for, 12- hydroxy stearic acids are added in reaction kettle, stirring is warming up to 75~ 85 DEG C, after 12- hydroxy stearic acids all melt, monohydrate lithium hydroxide powder and boric acid, closed reactor is added；
(2) control relief valve keeps pressure in kettle to be warming up to 215 DEG C, and keep in this temperature in 0.45-0.55MPa Lower holding 20min；
(3) after pressure release, suitable base oil is put into reaction kettle, temperature in the kettle is made to be down to 180 DEG C or so, then by object Material is transferred to reconciliation kettle；
(4) remaining base oil cooling is added, is homogenized under conditions of 80-90 DEG C, 15-25MPa；
(5) 80 DEG C are cooled to hereinafter, various additives are added, circulating filtration, degassing obtain finished product.
The present invention compared with the existing technology, has the following advantages compared with the prior art：
(1) contactor pressure reaction still saponification is used, lithium hydroxide powder and boric acid powder are directly used, and without corresponding to Aqueous solution, excessive kettle tendency is eliminated in production process, a large amount of dehydrations is saved, substantially increases saponification efficiency, contract The short production time, and technique is more controllable, product quality is stablized；
(2) it selects deep refining to add the mineral oil and synthetic oil of hydrogen, had not only met automobile wide temperature range requirement, but also tool There are longer oxidation stability, service life long.
(3) cheap low molecular acid-boric acid is introduced in being formulated, a kind of Compound-acid is both used as, to improve lubricating grease High-temperature behavior, and react to form lithium borate extreme pressure anti-wear additives with lithium hydroxide, greatly improve the extreme pressure anti-attrition of lubricating grease And high temperature resistance, preferably lubrication protection is provided for automobile steering device gear rack.
Specific implementation mode
A kind of automobile steering device gear rack special grease of the present invention, is made of the raw material of following mass percent： Account for the base oil of lubricating grease gross weight 60~85%；Thickening agent is the unitary organic acid for the C12-C22 for accounting for lubricating grease gross weight 7-15%, The boric acid of 0.2-1.0%, the monohydrate lithium hydroxide powder of 1.3-2.5%；Additive is to account for resisting for lubricating grease gross weight 0.5-1.0% Oxygen agent, the antirust agent of 0.3-1.0%, the dialkyl dithiophosphate of 0.5-2.0% and the dialkyl ammonia of 1.5-3.0% Base formates.
The base oil is Group III hydrogenated base oil, poly-a-olefin oil, the alkane that 40 DEG C of kinematic viscosity are 46~100mm2/s At least one of base naphthalene and trimellitic acid esters oil, pour point are not more than -25 DEG C.
The unitary organic acid is at least one of 12- hydroxy stearic acids, stearic acid.
The antioxidant is at least one of amine antioxidants, phenolic antioxidant.
The amine antioxidants are at least one of di-iso-octyldiphenylamine, octyl/butyl diphenylamines.Phenols antioxygen Agent is at least one in 2,6- di-tert-butyl methyl phenols, 3,5- di-tert-butyl-hydroxy phenyl propionic acid n-octadecyl alcohol esters Kind.
The antirust agent is at least one of benzotriazole, dinonyl naphthalene sulfonate barium.
The dialkyl dithiophosphate is molybdenum dialkyl-dithiophosphate, in zinc dialkyl dithiophosphate extremely Few one kind.
The dialkylthiocarbamate is dialkylthiocarbamate molybdenum, dialkyl thiocarbamic acid At least one of salt zinc, dialkylthiocarbamate antimony.
A kind of preparation method of automobile steering device gear rack special grease, using following processing step：
(1) base oil of base oil total amount 1/3 will be accounted for, 12- hydroxy stearic acids are added in reaction kettle, stirring is warming up to 75~ 85 DEG C, after 12- hydroxy stearic acids all melt, monohydrate lithium hydroxide powder and boric acid, closed reactor is added；
(2) control relief valve keeps pressure in kettle to be warming up to 215 DEG C, and keep in this temperature in 0.45-0.55MPa Lower holding 20min；
(3) after pressure release, suitable base oil is put into reaction kettle, temperature in the kettle is made to be down to 180 DEG C or so, then by object Material is transferred to reconciliation kettle；
(4) remaining base oil cooling is added, is homogenized under conditions of 80-90 DEG C, 15-25MPa；
(5) 80 DEG C are cooled to hereinafter, various additives are added, circulating filtration, degassing obtain finished product.
In order to further appreciate that the present invention, the preferred embodiment of the invention is described with reference to embodiment, still It should be appreciated that these descriptions are only the feature and advantage further illustrated the present invention, rather than to the claims in the present invention Limitation.
Embodiment one：
Ten dihydroxystearic acids that the base oil PAO9,270kg of 1000kg are put into reaction kettle, reaction kettle is heated to 85 DEG C, after ten dihydroxystearic acids dissolving after, then into reaction kettle be added 50kg lithium hydroxide powder and 15kg boric acid.Control Pressure is rapidly heated in 0.45-0.55MPa to 213-217 DEG C in kettle processed, and keeps 20min.Then pressure in venting kettle, adds The base oil PAO9 for entering 600kg is cooled to 180 DEG C hereinafter, being transferred to reconciliation kettle.The base oil PAO9 coolings of 905kg are added, 90 DEG C when, homogeneous 2h sequentially adds 15kg octyls/butyl diphenylamines when temperature of charge is down to 80 DEG C under the pressure of 20MPa, 15kg2,6- di-tert-butyl methyl phenol, 20kg dinonyl naphthalene sulfonate bariums, 30kg zinc dialkyl dithiophosphates and 80kg bis- Alkylthio carbaminate molybdenum, circulating filtration, degassing obtain finished product.
Embodiment two：
Put into the III class base oils of 8cst of 1000kg into reaction kettle, ten dihydroxystearic acids of 270kg, by reaction kettle plus Heat after the dissolving of ten dihydroxystearic acids, then 50kg lithium hydroxides powder and 15kg boric acid is added into reaction kettle to 85 DEG C.Control Pressure is rapidly heated in 0.45-0.55MPa to 213-217 DEG C in kettle processed, and keeps 20min.Then pressure in venting kettle, adds The III class base oils of 8cst for entering 600kg, are cooled to 180 DEG C hereinafter, being transferred to reconciliation kettle.The PAO9 coolings of 900kg base oils are added, At 90 DEG C, homogeneous 2h under the pressure of 20MPa sequentially adds 15kg octyls/butyl diphenylamines when temperature of charge is down to 80 DEG C, 15kg 3,5- di-tert-butyl-hydroxy phenyl propionic acid n-octadecyl alcohol ester, 10kg dinonyl naphthalene sulfonate bariums, three nitrogen of 5kg benzos Azoles, 30kg molybdenum dialkyl-dithiophosphates and 90kg dialkylthiocarbamate antimony, circulating filtration, degassing obtain finished product.
Embodiment three：
Put into the III class base oils of 8cst of 1000kg into reaction kettle, ten dihydroxystearic acids of 270kg, by reaction kettle plus Heat to 85 DEG C, after ten dihydroxystearic acids dissolving after, then into reaction kettle be added 50kg lithium hydroxide powder and 15kg boric acid. Pressure in kettle is controlled to be rapidly heated to 213-217 DEG C, and keep 20min in 0.45-0.55MPa.Then pressure in venting kettle, The III class base oils of 8cst of 600kg are added, are cooled to 180 DEG C hereinafter, being transferred to reconciliation kettle.905kg trimellitates (V40 is added For 70-75mm2/s) cooling, at 90 DEG C, homogeneous 2h under the pressure of 20MPa is sequentially added when temperature of charge is down to 80 DEG C 15kg di-iso-octyldiphenylamines, 15kg 3,5- di-tert-butyl-hydroxy phenyl propionic acid n-octadecyl alcohol esters, three nitrogen of 10kg benzos Azoles, 30kg molybdenum dialkyl-dithiophosphates and 90kg dialkylthiocarbamate zinc, circulating filtration, degassing obtain finished product.
Comparative example
The III class base oils of 8cst of 1500kg are put into reaction kettle, ten dihydroxystearic acids of 270kg heat reaction kettle To 85 DEG C, after ten dihydroxystearic acids dissolving after, then into reaction kettle be added 50kg lithium hydroxides 5 times of aqueous solutions, in 95 DEG C Lower saponification 120min.It is warming up to 115 DEG C after saponification, the 15kg boric acid of three times hot water dissolving is added, constant temperature stirs Mix reaction 60min.It is warming up to 213-217 DEG C, and keeps 3min, is then transferred to reconciliation kettle.1015kg base oils PAO9 drops are added Temperature, at 90 DEG C, homogeneous 2h under the pressure of 20MPa sequentially adds 15kg diisooctyl hexichol when temperature of charge is down to 80 DEG C Amine, 3, the 5- di-tert-butyl-hydroxy phenyl propionic acid n-octadecyl alcohol esters of 15kg, 10kg benzotriazole, 30kg dialkyl group two D2EHDTPA zinc and 80kg dialkylthiocarbamate molybdenums, circulating filtration, degassing obtain finished product.Table 1：The embodiment of the present invention And comparative example tables of data
The present invention is can be seen that from the data of table 1 to produce using contactor, does not have to dissolved hydrogen water lithia and boric acid, directly It connects one-step method saponification and automobile steering device gear rack lubricating grease is made in compound boric acid, it is de- without resting on saponification in certain temperature Water is directly rapidly heated to maximum temperature, simple for process, not only saponification and recombination time shorten, material reaction kettle it is total when Between greatly reduce, be conducive to improve production efficiency.The product of preparation has wide temperature use scope, and anti-attrition is good, service life Long advantage can better meet the lubricating requirement of rack of steering.
The present invention is described in detail above.Specific case used herein is to the principle of the present invention and embodiment party Formula is expounded, and the explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention.It should refer to Go out, it for those skilled in the art, without departing from the principle of the present invention, can also be to the present invention Some improvement and modification can also be carried out, these improvement and modification are also fallen within the protection scope of the claims of the present invention.

Claims (9)

1. a kind of automobile steering device gear rack special grease, which is characterized in that be made of the raw material of following mass percent：
Account for the base oil of lubricating grease gross weight 60~85%；
Thickening agent is the unitary organic acid for the C12-C22 for accounting for lubricating grease gross weight 7-15%, the boric acid of 0.2-1.0%, 1.3-2.5% Monohydrate lithium hydroxide powder；
Additive is the antioxidant for accounting for lubricating grease gross weight 0.5-1.0%, the antirust agent of 0.3-1.0%, the dialkyl group of 0.5-2.0% The dialkylthiocarbamate of dithiophosphates and 1.5-3.0%.
2. a kind of automobile steering device gear rack special grease as described in claim 1, it is characterized in that：The base oil is Group III hydrogenated base oil, poly-a-olefin oil, alkylnaphthalene and the trimellitic acid esters oil that 40 DEG C of kinematic viscosity are 46~100mm2/s At least one of, pour point is not more than -25 DEG C.
3. a kind of automobile steering device gear rack special grease as described in claim 1, it is characterized in that：The unitary has Machine acid is at least one of 12- hydroxy stearic acids, stearic acid.
4. a kind of automobile steering device gear rack special grease as described in claim 1, it is characterized in that：The antioxidant For at least one of amine antioxidants, phenolic antioxidant.
5. a kind of automobile steering device gear rack special grease as claimed in claim 4, it is characterized in that：The amine is anti- Oxygen agent is at least one of di-iso-octyldiphenylamine, octyl/butyl diphenylamines.Phenolic antioxidant is 2,6- di-t-butyls to first At least one of base phenol, 3,5- di-tert-butyl-hydroxy phenyl propionic acid n-octadecyl alcohol esters.
6. a kind of automobile steering device gear rack special grease as described in claim 1, it is characterized in that：The antirust agent For at least one of benzotriazole, dinonyl naphthalene sulfonate barium.
7. a kind of automobile steering device gear rack special grease as described in claim 1, it is characterized in that：The dialkyl group Dithiophosphates is at least one of molybdenum dialkyl-dithiophosphate, zinc dialkyl dithiophosphate.
8. a kind of automobile steering device gear rack special grease as described in claim 1, it is characterized in that：The dialkyl group Thiocarbamate is dialkylthiocarbamate molybdenum, dialkylthiocarbamate zinc, dialkyl amino At least one of formates antimony.
9. a kind of preparation method of automobile steering device gear rack special grease as described in one of claim 1~8, special Sign is：Using following processing step：
(1) base oil of base oil total amount 1/3 will be accounted for, 12- hydroxy stearic acids are added in reaction kettle, stirring is warming up to 75~85 DEG C, after 12- hydroxy stearic acids all melt, monohydrate lithium hydroxide powder and boric acid, closed reactor is added；
(2) control relief valve keeps pressure in kettle to be warming up to 215 DEG C in 0.45-0.55MPa, and keeps protecting at this temperature Hold 20min；
(3) after pressure release, suitable base oil is put into reaction kettle, so that temperature in the kettle is down to 180 DEG C or so, is then moved material It send to reconciliation kettle；
(4) remaining base oil cooling is added, is homogenized under conditions of 80-90 DEG C, 15-25MPa；
(5) 80 DEG C are cooled to hereinafter, various additives are added, circulating filtration, degassing obtain finished product.
CN201810495976.9A 2018-05-22 2018-05-22 A kind of automobile steering device gear rack special grease and preparation method thereof Pending CN108559586A (en)

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CN112195057A (en) * 2020-07-28 2021-01-08 重庆安美新材料有限公司 Robot harmonic reducer lubricating grease
CN112608780A (en) * 2020-12-07 2021-04-06 武汉博达特种润滑技术有限公司 Low-odor automobile lubricating grease composition and preparation method thereof
CN115353925A (en) * 2022-08-08 2022-11-18 广州诺拜因化工有限公司 Composite lithium-based grease and preparation method thereof
CN115786018A (en) * 2022-12-28 2023-03-14 洛阳精一新材料科技有限公司 Lubricating grease for harmonic reducer and preparation method thereof

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN112195057A (en) * 2020-07-28 2021-01-08 重庆安美新材料有限公司 Robot harmonic reducer lubricating grease
WO2022021921A1 (en) * 2020-07-28 2022-02-03 安美科技股份有限公司 Lubricating grease for robot harmonic reducer
CN112608780A (en) * 2020-12-07 2021-04-06 武汉博达特种润滑技术有限公司 Low-odor automobile lubricating grease composition and preparation method thereof
CN112608780B (en) * 2020-12-07 2022-07-19 武汉博达特种润滑技术有限公司 Low-odor automobile lubricating grease composition and preparation method thereof
CN115353925A (en) * 2022-08-08 2022-11-18 广州诺拜因化工有限公司 Composite lithium-based grease and preparation method thereof
CN115786018A (en) * 2022-12-28 2023-03-14 洛阳精一新材料科技有限公司 Lubricating grease for harmonic reducer and preparation method thereof
CN115786018B (en) * 2022-12-28 2024-01-26 洛阳精一新材料科技有限公司 Lubricating grease for harmonic reducer and preparation method thereof

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