CN115058271A - Heavy-duty bearing lubricating grease and preparation method thereof - Google Patents
Heavy-duty bearing lubricating grease and preparation method thereof Download PDFInfo
- Publication number
- CN115058271A CN115058271A CN202210711057.7A CN202210711057A CN115058271A CN 115058271 A CN115058271 A CN 115058271A CN 202210711057 A CN202210711057 A CN 202210711057A CN 115058271 A CN115058271 A CN 115058271A
- Authority
- CN
- China
- Prior art keywords
- percent
- grease
- calcium
- accounts
- composite lithium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
-
- 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
- C10M2205/026—Butene
-
- 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
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M2207/1276—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 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
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- 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
- 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
-
- 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
- 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
- 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
- C10N2030/02—Pour-point; Viscosity index
-
- 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
- C10N2030/26—Waterproofing or water resistance
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/72—Extended drain
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
Abstract
The invention relates to heavy-duty bearing lubricating grease and a preparation method thereof, wherein the heavy-duty bearing lubricating grease comprises the following components in parts by weight: 70.5 percent of composite lithium calcium base grease, 13 percent of tackifier, 3 percent of oiliness agent, 3 percent of extreme pressure antiwear agent, 0.5 percent of antioxidant and 10 percent of graphite additive, wherein the composite lithium calcium base grease is prepared by mixing 86.5 percent of base oil, 8 percent of dodecahydroxystearic acid, 3 percent of azelaic acid, 2 percent of lithium hydroxide and 0.5 percent of calcium hydroxide; by adopting the composite lithium-calcium-based lubricating grease as the thickening agent, the lubricating grease can be endowed with excellent wear resistance, extreme pressure performance and water resistance, has good oiliness and low friction coefficient, has the functions of saving energy and reducing consumption, and can enhance the vibration resistance, and the addition of the tackifier not only can enable the product to have better adhesiveness, but also is beneficial to increasing the water spray resistance of the product, can well protect a bearing, and prolongs the service life of the bearing.
Description
Technical Field
The invention relates to the technical field of bearing lubricating grease preparation, in particular to heavy-duty bearing lubricating grease and a preparation method thereof.
Background
The bearing is an important part in the modern mechanical equipment, the main function of the bearing is to support the mechanical rotator, reduce the friction coefficient in the movement process and ensure the rotation precision of the mechanical rotator, and the friction can be effectively reduced through lubricating grease, so that the heat generated by the rotation of the bearing is controlled to the minimum, the bearing is comprehensively protected, and the service life of the bearing is greatly prolonged.
The traditional lubrication for large heavy-duty bearings in China is usually prepared by taking mineral oil as base oil, and the performance of the additive is limited, so that the bearings are abraded too fast and have short service life; the heavy-duty bearing lubricating grease has the advantages that the water spraying resistance is poor, the lubricating grease can be seriously polluted when the lubricating grease meets water, the performance of the lubricating grease is greatly influenced, and with the upsizing of domestic bearings and the requirement for energy conservation, a novel energy-saving product with stronger adhesion, better extreme pressure performance, good water spraying resistance is needed to be developed, so the heavy-duty bearing lubricating grease is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the heavy-duty bearing lubricating grease which has the advantages of excellent wear resistance and extreme pressure performance and improved water spray resistance, and solves the problems that the existing lubricating grease additive has limited performance, so that the bearing is worn too fast and has short service life; and the water-spraying resistance is poor, the lubricating grease can be seriously polluted when meeting water, and the performance of the lubricating grease is greatly influenced.
In order to achieve the purposes of excellent anti-wear and extreme pressure performance and improving the water-spraying resistance, the invention provides the following technical scheme: the heavy-duty bearing lubricating grease comprises the following components in parts by weight:
composite lithium calcium grease: 62.2% -78.8%;
tackifier: 11% -15%;
an oiliness agent: 1% -5%;
extreme pressure antiwear agent: 1% -5%;
antioxidant: 0.2% -0.8%;
graphite additive: 8% -12%;
the composite lithium calcium base grease comprises:
base oil: 81.2% -91.8%;
dodecahydroxystearic acid: 6 to 10 percent;
azelaic acid: 1% -5%;
lithium hydroxide: 1% -3%;
calcium hydroxide: 0.2 to 0.8 percent.
Further, the lithium calcium complex base grease accounts for 78.8%, the tackifier accounts for 11%, the oiliness agent accounts for 1%, the extreme pressure antiwear agent accounts for 1%, the antioxidant accounts for 0.2%, and the graphite additive accounts for 8%, wherein the lithium calcium complex base grease is prepared by mixing 91.8% of base oil, 6% of dodecahydroxystearic acid, 1% of azelaic acid, 1% of lithium hydroxide, and 0.2% of calcium hydroxide, and the formula is the formula with the minimum proportion of the lubricating grease.
Further, the lithium calcium complex base grease accounts for 70.5%, the tackifier accounts for 13%, the oiliness agent accounts for 3%, the extreme pressure antiwear agent accounts for 3%, the antioxidant accounts for 0.5%, and the graphite additive accounts for 10%, wherein the lithium calcium complex base grease is prepared by mixing 86.5% of base oil, 8% of dodecahydroxystearic acid, 3% of azelaic acid, 2% of lithium hydroxide and 0.5% of calcium hydroxide, and the formula is a formula with a moderate proportion of the lubricating grease.
Further, the lithium calcium complex base grease accounts for 62.2%, the tackifier accounts for 15%, the oiliness agent accounts for 5%, the extreme pressure antiwear agent accounts for 5%, the antioxidant accounts for 0.8%, and the graphite additive accounts for 12%, wherein the lithium calcium complex base grease is prepared by mixing 81.2% of base oil, 10% of dodecahydroxystearic acid, 5% of azelaic acid, 3% of lithium hydroxide and 0.8% of calcium hydroxide, and the formula is the maximum formula of the lubricating grease.
Furthermore, the composite lithium-calcium-based lubricating grease is used as a thickening agent, and various additives and the proportion thereof are selected, so that the prepared product has excellent extreme pressure wear resistance, lubricating property and water resistance.
Furthermore, the tackifier is a mixture formed by mixing polyisobutylene and polymethacrylate, wherein the proportion of polyisobutylene and polymethacrylate accounts for 50%, and the addition of the tackifier not only can enable the product to have better adhesiveness, but also is beneficial to increasing the water spray resistance of the product, and can greatly improve the comprehensive performance of the lubricating grease
Furthermore, the oiliness agent is a mixture formed by mixing 50% of sulfurized cottonseed oil, 20% of dodecanol, 15% of ethylene glycol oleate and 15% of butyl oleate, and the oiliness agent can endow the lubricating grease with better oiliness and low friction performance.
Further, the extreme pressure antiwear additive is zinc dialkyl dithiocarbamate, the antioxidant is a mixture of 60% octyl butyl diphenylamine and 40% bis (3, 5-di-tert-butyl-4-hydroxybenzyl) sulfide, and the graphite additive is colloidal graphite.
Further, the extreme pressure antiwear additive is zinc dialkyl dithiocarbamate, the antioxidant is a mixture of 60% octyl butyl diphenylamine and 40% bis (3, 5-di-tert-butyl-4-hydroxybenzyl) sulfide, and the graphite additive is flake graphite.
Based on the heavy-duty bearing lubricating grease, the preparation method of the heavy-duty bearing lubricating grease is provided, and comprises the following steps:
s1, preparation of composite lithium-calcium base: firstly, sequentially adding 65% of base oil, 6% -10% of dodecahydroxystearic acid and 1% -5% of azelaic acid, uniformly stirring and heating, then adding 1% -3% of lithium hydroxide and 0.2% -0.8% of calcium hydroxide, stirring and heating to 100 ℃, dehydrating, heating to 210 ℃, adding the rest base oil, cooling, homogenizing and degassing to obtain the composite lithium-calcium base grease;
s2, adding 11-15% of tackifier, 1-5% of oiliness agent, 1-5% of extreme pressure antiwear agent, 0.2-0.8% of antioxidant and 8-12% of graphite additive into the prepared composite lithium calcium base grease in sequence, and fully mixing and stirring;
and S3, heating to 80 ℃, stirring at constant temperature, and cooling to normal temperature to obtain the product.
Has the advantages that:
compared with the prior art, the invention provides heavy-duty bearing lubricating grease which has the following beneficial effects:
the heavy-duty bearing lubricating grease has the advantages that the composite lithium-calcium-based lubricating grease is used as a thickening agent, various additives and the proportion thereof are selected, the lubricating grease can be endowed with excellent wear resistance, extreme pressure performance and water resistance, the lubricating grease has good oiliness and low friction coefficient, meanwhile, the lubricating grease also has the effects of saving energy and reducing consumption, the anti-vibration capability can be enhanced, the addition of the tackifier can enable the product to have good adhesiveness, the anti-water-spraying performance of the product can be increased, the bearing can be well protected, the service life of the bearing is prolonged, and the market prospect is good.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
The first embodiment is as follows:
the heavy-duty bearing lubricating grease comprises the following components in parts by weight:
composite lithium calcium grease: 78.8 percent;
tackifier: 11 percent;
an oiliness agent: 1 percent;
extreme pressure antiwear agent: 1 percent;
antioxidant: 0.2 percent;
graphite additive: 8 percent;
the composite lithium calcium base grease comprises:
base oil: 91.8 percent;
dodecahydroxystearic acid: 6 percent;
azelaic acid: 1 percent;
lithium hydroxide: 1 percent;
calcium hydroxide: 0.2 percent.
Based on the heavy-duty bearing lubricating grease, the preparation method of the heavy-duty bearing lubricating grease is provided, and comprises the following steps:
1) preparing a composite lithium-calcium base:
firstly, 65% of base oil, 6% of dodecahydroxystearic acid and 1% of azelaic acid are sequentially added, then the mixture is uniformly stirred and heated, 1% of lithium hydroxide and 0.2% of calcium hydroxide are added, the mixture is stirred and heated to 100 ℃ and then dehydrated, the rest base oil is added after the mixture is heated to 210 ℃, and the composite lithium-calcium base grease can be prepared after cooling, homogenizing and degassing.
2) Then, 11% of tackifier, 1% of oiliness agent, 1% of extreme pressure antiwear agent, 0.2% of antioxidant and 8% of graphite additive are added into the prepared composite lithium-calcium-based grease in sequence, and the mixture is fully mixed and stirred.
3) When the temperature is raised to 80 ℃, stirring at constant temperature, and cooling to normal temperature to obtain the product.
The second embodiment:
the heavy-duty bearing lubricating grease comprises the following components in parts by weight:
composite lithium calcium grease: 70.5 percent;
tackifier: 13 percent;
an oiliness agent: 3 percent;
extreme pressure antiwear agent: 3 percent;
antioxidant: 0.5 percent;
graphite additive: 10 percent;
the composite lithium calcium base grease comprises:
base oil: 86.5 percent;
dodecahydroxystearic acid: 8 percent;
azelaic acid: 3 percent;
lithium hydroxide: 2 percent;
calcium hydroxide: 0.5 percent.
Based on the heavy-duty bearing lubricating grease, the preparation method of the heavy-duty bearing lubricating grease is provided, and comprises the following steps:
1) preparing a composite lithium-calcium base:
firstly, 65% of base oil, 8% of dodecahydroxystearic acid and 3% of azelaic acid are sequentially added, then the mixture is uniformly stirred and heated, then 2% of lithium hydroxide and 0.5% of calcium hydroxide are added, the mixture is stirred and heated to 100 ℃ and then dehydrated, after the mixture is heated to 210 ℃, the rest base oil is added, and the composite lithium-calcium base grease can be prepared after cooling, homogenizing and degassing.
2) Then 13% of tackifier, 3% of oiliness agent, 3% of extreme pressure antiwear agent, 0.5% of antioxidant and 10% of graphite additive are added into the prepared composite lithium-calcium-based grease in sequence, and the mixture is fully mixed and stirred.
3) When the temperature is raised to 80 ℃, stirring at constant temperature, and cooling to normal temperature to obtain the product.
Example three:
the heavy-duty bearing lubricating grease comprises the following components in parts by weight:
composite lithium calcium grease: 62.2 percent;
tackifier: 15 percent;
an oiliness agent: 5 percent;
extreme pressure antiwear agent: 5 percent;
antioxidant: 0.8 percent;
graphite additive: 12 percent;
the composite lithium calcium base grease comprises:
base oil: 81.2 percent;
dodecahydroxystearic acid: 10 percent;
azelaic acid: 5 percent;
lithium hydroxide: 3 percent;
calcium hydroxide: 0.8 percent.
Based on the heavy-duty bearing lubricating grease, the preparation method of the heavy-duty bearing lubricating grease is provided: the method comprises the following steps:
1) preparing a composite lithium-calcium base:
firstly, 65% of base oil, 10% of dodecahydroxy stearic acid and 5% of azelaic acid are sequentially added, then the mixture is uniformly stirred and heated, then 3% of lithium hydroxide and 0.8% of calcium hydroxide are added, the mixture is stirred and heated to 100 ℃ and then dehydrated, after the mixture is heated to 210 ℃, the rest base oil is added, and the composite lithium-calcium base grease can be prepared after cooling, homogenizing and degassing.
2) Then, 15% of tackifier, 5% of oiliness agent, 5% of extreme pressure antiwear agent, 0.8% of antioxidant and 12% of graphite additive are added into the prepared composite lithium-calcium-based grease in sequence, and the mixture is fully mixed and stirred.
3) When the temperature is raised to 80 ℃, stirring at constant temperature, and cooling to normal temperature to obtain the product.
In this embodiment, the principle of the heavy-duty bearing grease is as follows: by adopting the composite lithium-calcium-based lubricating grease as the thickening agent and selecting various additives and proportions thereof, the lubricating grease can be endowed with excellent wear resistance, extreme pressure performance and water resistance, has good oiliness and low friction coefficient, has the functions of saving energy and reducing consumption, and can enhance the vibration resistance, and the addition of the thickening agent not only can enable the product to have better adhesiveness, but also is beneficial to increasing the water spray resistance, can well protect a bearing, prolongs the service life of the bearing, and has good market prospect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The heavy-duty bearing lubricating grease is characterized by comprising the following components in parts by weight:
composite lithium calcium grease: 62.2% -78.8%;
tackifier: 11 to 15 percent;
an oiliness agent: 1% -5%;
extreme pressure antiwear agent: 1% -5%;
antioxidant: 0.2% -0.8%;
graphite additive: 8% -12%;
the composite lithium calcium base grease comprises:
base oil: 81.2% -91.8%;
dodecahydroxystearic acid: 6 to 10 percent;
azelaic acid: 1% -5%;
lithium hydroxide: 1% -3%;
calcium hydroxide: 0.2 to 0.8 percent.
2. The heavy duty bearing grease of claim 1 wherein: the composite lithium calcium base grease is prepared by mixing 91.8% of base oil, 6% of dodecahydroxystearic acid, 1% of azelaic acid, 1% of lithium hydroxide and 0.2% of calcium hydroxide, wherein the tackifier accounts for 11%, the oiliness agent accounts for 1%, the extreme pressure antiwear agent accounts for 1%, the antioxidant accounts for 0.2%, and the graphite additive accounts for 8%.
3. The heavy duty bearing grease of claim 1 wherein: the composite lithium calcium base grease is prepared by mixing 86.5% of base oil, 8% of dodecahydroxystearic acid, 3% of azelaic acid, 2% of lithium hydroxide and 0.5% of calcium hydroxide, 13% of a tackifier, 3% of an oiliness agent, 3% of an extreme pressure antiwear agent, 0.5% of an antioxidant and 10% of a graphite additive.
4. The heavy duty bearing grease of claim 1 wherein: the composite lithium calcium base grease accounts for 62.2 percent, the tackifier accounts for 15 percent, the oiliness agent accounts for 5 percent, the extreme pressure antiwear agent accounts for 5 percent, the antioxidant accounts for 0.8 percent, and the graphite additive accounts for 12 percent, wherein the composite lithium calcium base grease is prepared by mixing 81.2 percent of base oil, 10 percent of dodecahydroxystearic acid, 5 percent of azelaic acid, 3 percent of lithium hydroxide and 0.8 percent of calcium hydroxide.
5. The heavy duty bearing grease of claim 1 wherein: the tackifier is a mixture formed by mixing polyisobutylene and polymethacrylate, wherein the proportion of the polyisobutylene and the polymethacrylate accounts for 50%.
6. The heavy duty bearing grease of claim 1 wherein: the oiliness agent is a mixture formed by mixing 50% of sulfurized cottonseed oil, 20% of dodecanol, 15% of ethylene glycol oleate and 15% of butyl oleate.
7. The heavy duty bearing grease of claim 1 wherein: the extreme pressure antiwear additive is zinc dialkyl dithiocarbamate, and the antioxidant is a mixture of 60% octyl butyl diphenylamine and 40% bis (3, 5-di-tert-butyl-4-hydroxybenzyl) thioether.
8. The heavy duty bearing grease of claim 7 wherein: the graphite additive is crystalline flake graphite.
9. The heavy duty bearing grease of claim 7 wherein: the graphite additive is colloidal graphite.
10. The preparation method of the heavy-duty bearing lubricating grease is characterized by comprising the following steps:
s1, preparation of composite lithium-calcium base: firstly, sequentially adding 65% of base oil, 6% -10% of dodecahydroxystearic acid and 1% -5% of azelaic acid, uniformly stirring and heating, then adding 1% -3% of lithium hydroxide and 0.2% -0.8% of calcium hydroxide, stirring and heating to 100 ℃, dehydrating, heating to 210 ℃, adding the rest base oil, cooling, homogenizing and degassing to obtain the composite lithium-calcium base grease;
s2, adding 11-15% of tackifier, 1-5% of oiliness agent, 1-5% of extreme pressure antiwear agent, 0.2-0.8% of antioxidant and 8-12% of graphite additive into the prepared composite lithium calcium base grease in sequence, and fully mixing and stirring;
and S3, heating to 80 ℃, stirring at constant temperature, and cooling to normal temperature to obtain the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210711057.7A CN115058271A (en) | 2022-06-22 | 2022-06-22 | Heavy-duty bearing lubricating grease and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210711057.7A CN115058271A (en) | 2022-06-22 | 2022-06-22 | Heavy-duty bearing lubricating grease and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115058271A true CN115058271A (en) | 2022-09-16 |
Family
ID=83203093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210711057.7A Pending CN115058271A (en) | 2022-06-22 | 2022-06-22 | Heavy-duty bearing lubricating grease and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115058271A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275798A (en) * | 2013-06-19 | 2013-09-04 | 上海禾泰特种润滑技术有限公司 | Lubricating grease composition for heavy-loading roller press bearing and preparation method thereof |
| CN105838485A (en) * | 2016-04-13 | 2016-08-10 | 禾泰特种新材料（苏州）有限公司 | Grease composition and preparation method thereof |
| CN111876221A (en) * | 2020-09-01 | 2020-11-03 | 上海果石实业(集团)有限公司 | Lubricating grease for roller press and preparation method and application thereof |
-
2022
- 2022-06-22 CN CN202210711057.7A patent/CN115058271A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275798A (en) * | 2013-06-19 | 2013-09-04 | 上海禾泰特种润滑技术有限公司 | Lubricating grease composition for heavy-loading roller press bearing and preparation method thereof |
| CN105838485A (en) * | 2016-04-13 | 2016-08-10 | 禾泰特种新材料（苏州）有限公司 | Grease composition and preparation method thereof |
| CN111876221A (en) * | 2020-09-01 | 2020-11-03 | 上海果石实业(集团)有限公司 | Lubricating grease for roller press and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112195057B (en) | Robot harmonic reducer lubricating grease | |
| CN109233959B (en) | Automobile hub bearing lubricating grease composition and preparation method thereof | |
| CN111019743A (en) | Coal-based total-synthesis low-temperature hydraulic oil and preparation method thereof | |
| CN108165356B (en) | Cotton picker spindle lubricating grease and preparation method thereof | |
| CN104498135A (en) | Anti-freezing lubrication oil | |
| CN103409208A (en) | Blower main shaft bearing lubricating grease and preparation method thereof | |
| CN110616103B (en) | Commercial vehicle wheel hub bearing lubricating grease and preparation method thereof | |
| CN104130832A (en) | Antifriction synergist of rotary-kiln support-wheel shaft bushing lubricating oil and preparation method thereof | |
| CN115011397A (en) | Emission-reduction low-carbon CK-4 diesel engine oil composition | |
| CN115058271A (en) | Heavy-duty bearing lubricating grease and preparation method thereof | |
| CN111073744B (en) | Electric vehicle leakage-resistant and heat-dissipation high-temperature transmission gear oil and preparation method thereof | |
| CN111574560A (en) | Phosphorus-containing ionic liquid and preparation method and application thereof | |
| CN105199817A (en) | Low-temperature lithium-calcium bearing lubricating grease and preparation method | |
| CN115305129B (en) | Barium-based lubricating grease composition and preparation method and application thereof | |
| CN111892972B (en) | Petrochemical first-grade extreme pressure composite lithium-based lubricating grease and preparation method thereof | |
| CN105255561A (en) | Lubricating grease dedicated to blender mixer and preparation method of lubricating grease | |
| CN115595194A (en) | Long-life antioxidant wear-resistant wind power gear oil and preparation method thereof | |
| CN113444563A (en) | Internal combustion engine oil for crawler-type tank and preparation method thereof | |
| CN114196461A (en) | Cleaning oil composition for heavy-duty axle and preparation method and application thereof | |
| CN104164291A (en) | Lubricating grease for blast-furnace gun and preparation method thereof | |
| CN105154195A (en) | Extreme pressure complex grease composition | |
| CN109837133A (en) | A kind of high base number calcium alkylbenzenesulfonate being exclusively used in lubricating grease | |
| CN111117729B (en) | Sintering machine slideway sealing lubricating grease and preparation method thereof | |
| CN110872536A (en) | Rotating shaft silencing lubricating grease and preparation method thereof | |
| CN111849590B (en) | Low-noise mixed soap-based lubricating grease composition and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |