CN113528221B - Corrugated board line bearing lubricating grease and preparation method thereof - Google Patents
Corrugated board line bearing lubricating grease and preparation method thereof Download PDFInfo
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- CN113528221B CN113528221B CN202110656850.7A CN202110656850A CN113528221B CN 113528221 B CN113528221 B CN 113528221B CN 202110656850 A CN202110656850 A CN 202110656850A CN 113528221 B CN113528221 B CN 113528221B
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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
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- 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
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- 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
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
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- 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
- C10M2201/08—Inorganic acids or salts thereof
- C10M2201/082—Inorganic acids or salts thereof containing nitrogen
- C10M2201/083—Inorganic acids or salts thereof containing nitrogen nitrites
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- 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
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- 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
- C10M2201/10—Compounds containing silicon
- C10M2201/105—Silica
- C10M2201/1056—Silica used as thickening agents
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- 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
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
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- 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
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/285—Esters of aromatic polycarboxylic acids
- C10M2207/2855—Esters of aromatic polycarboxylic acids used as base material
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/102—Polyesters
- C10M2209/1023—Polyesters used as base material
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- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
- C10M2213/062—Polytetrafluoroethylene [PTFE]
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- 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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- 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
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C10N2030/08—Resistance to extreme temperature
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Abstract
The invention discloses corrugated board line bearing lubricating grease which comprises the following components in parts by weight: poly-alpha-olefins: 60-85 parts; synthesis of ester: 2-5 parts; a thickening agent: 10-20 parts; high-temperature antioxidant: 0.1-1 part; extreme pressure additive: 0.1-1 part; antirust additive: 1-3 parts; solid lubricant: 1-3 parts. The lubricating grease for the corrugated board line bearing has the advantages of strong high temperature resistance, difficult coking and loss, capability of meeting the working condition requirements of the existing corrugated board line and guarantee of the production efficiency.
Description
Technical Field
The invention belongs to the technical field of fine chemical product lubrication application, and particularly relates to corrugated board line bearing lubricating grease and a preparation method thereof.
Background
With the development of science and technology, the market has higher requirements on corrugated board lines, the width of the corrugating machine is increased to 2.2-2.8m from the original 1.6-2.2m, the speed is increased to 180-280m/min from the original 130-180m/min, and the steam heating speed is increased. The loads, the running speeds and the working temperatures of the corrugated roller, the preheating cylinder and the pressure roller bearing are greatly increased, so that higher requirements are provided for the lubricating grease for lubricating the bearing, the lubricating grease, the water vapor performance, the loading performance, the noise reduction performance and the like.
When present traditional lubricating grease is used for corrugated container board line bearing, there are the problem that high temperature resistance is poor, easy coking, easily run off, lead to the currying cycle short, the cost of labor is high, and is great to the pollution of operating environment simultaneously, causes the bearing card to die when serious, is forced to shut down, influences production efficiency.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the corrugated board line bearing lubricating grease and the preparation method thereof provided by the invention have the advantages that the corrugated board line bearing lubricating grease has stronger high temperature resistance, is not easy to coke and run off, can meet the working condition requirements of the existing corrugated board line, and ensures the production efficiency.
The technical purpose of the invention is realized by the following technical scheme:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 60-85 parts; synthesis of ester: 2-5 parts; thickening agent: 10-20 parts; high-temperature antioxidant: 0.1-1 part; extreme pressure additive: 0.1-1 part; antirust additive: 1-3 parts; solid lubricant: 1-3 parts.
Preferably, the polyalphaolefin has a viscosity of from 300 to 420cSt at 40 ℃.
Further preferably, the polyalphaolefin has a viscosity of 396cSt at 40 ℃.
Preferably, the synthetic ester is prepared from polyester and trimellitate according to the mass ratio of (1-2): (1-3).
More preferably, the synthetic ester is prepared from polyester and trimellitate according to a mass ratio of 1.2: 1.3.
Preferably, the thickening agent is prepared from 12-hydroxy lithium stearate and white carbon black according to the mass ratio of (3-9): (7-11).
More preferably, the thickening agent is prepared from 12-hydroxy lithium stearate and white carbon black according to a mass ratio of 5: 8.
Preferably, the high-temperature antioxidant is prepared from octyl-butyldiphenylamine and dialkyl diphenylamine in a mass ratio of (1-3): (1-5).
More preferably, the high-temperature antioxidant is prepared from octyl-butyl diphenylamine and dialkyl diphenylamine in a mass ratio of 4:6, the components are mixed.
Preferably, the extreme pressure additive is at least one of potassium borate and boron nitride.
Preferably, the antirust additive is sodium nitrite.
Preferably, the solid lubricant is at least one of polytetrafluoroethylene, graphite and molybdenum disulfide.
Another object of the present invention is to provide a method for preparing the above grease for corrugated cardboard wire bearings:
a method for preparing the corrugated board line bearing grease as described above, comprising the steps of:
(1) Mixing poly-alpha-olefin, synthetic ester, a thickening agent, a high-temperature antioxidant, an extreme pressure additive and an antirust additive, heating and stirring to obtain a mixture;
(2) Adding a solid lubricant into the mixture obtained in the step (1), heating, stirring and cooling to normal temperature;
(3) And (3) homogenizing the mixture obtained in the step (2) and then grinding to obtain the corrugated board line bearing lubricating grease.
Preferably, the temperature after heating in step (1) is 100-130 ℃ and the temperature after heating in step (2) is 170-220 ℃.
Further preferably, the temperature after heating in step (1) is 120 ℃ and the temperature after heating in step (2) is 200 ℃.
The beneficial effects of the invention are: the lubricating grease for the corrugated board line bearing has strong high temperature resistance, is not easy to coke and run off, can meet the working condition requirements of high temperature, high load and steam pollution of the existing corrugated board line, can lubricate the corrugated board line bearing with long service life, and ensures the production efficiency of the corrugated board line.
(1) The corrugated board line bearing lubricating grease disclosed by the invention adopts the polyalphaolefin as the base oil, so that the lubricating grease has excellent high-temperature and low-temperature performances, and particularly, when the polyalphaolefin with the viscosity of 300-420cSt at 40 ℃ is used as the base oil, the lubricating grease can ensure that the lubricating grease has a higher dropping point, and can meet the high-temperature working condition requirement of the existing corrugated board line.
(2) The synthetic ester in the corrugated board line bearing lubricating grease has the function of skeleton support, and can improve the overall compactness and the adhesiveness of the lubricating grease in a high-temperature environment.
(3) The thickening agent in the corrugated board linear bearing lubricating grease can further strengthen the structural support of the lubricating grease, and the thickening agent and the synthetic ester in the lubricating grease have a synergistic support effect on the structure of the lubricating grease, so that the lubricating grease has proper viscosity, and the corrugated board linear bearing is prevented from generating secondary temperature rise on the premise of normal high-speed operation. The thickening agent is composed of 12-hydroxy lithium stearate and white carbon black according to a specific proportion, so that the lubricating grease has a higher dropping point, and the oil distribution amount and the evaporation loss of the lubricating grease are reduced, thereby effectively reducing the loss of the lubricating grease in the using process and prolonging the service life of the lubricating grease.
(4) The high-temperature antioxidant in the corrugated board linear bearing lubricating grease can effectively improve the high-temperature antioxidant performance of the lubricating grease, and the high-temperature antioxidant is composed of octyl-butyldiphenylamine and dialkyl diphenylamine according to a specific proportion, so that the oxidation stability of the lubricating grease can be effectively improved, and coking and carbon deposition generated in the using process of the lubricating grease can be reduced.
(5) The extreme pressure additive in the corrugated board linear bearing lubricating grease can ensure that the corrugated board linear bearing can normally run under high load.
(6) The antirust additive in the corrugated board linear bearing lubricating grease can prevent the corrugated board linear bearing from rusting in a high-temperature high-humidity environment, and the solid lubricant in the lubricating grease can ensure that the bearing has good lubricity in a boundary lubrication state, so that the bearing is not blocked and the normal operation of the bearing is ensured.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 60 parts; polyester: 2 parts of (1); trimellitate ester: 1 part; lithium 12-hydroxystearate: 3 parts of a mixture; white carbon black: 7 parts; octyl-butyldiphenylamine: 0.05 part; dialkyl diphenylamine: 0.05 part; potassium borate: 0.1 part; sodium nitrite: 3 parts of a mixture; polytetrafluoroethylene: 1 part, wherein the polyalphaolefin has a viscosity of 300cSt at 40 ℃.
The preparation method of the corrugated board linear bearing lubricating grease comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, potassium borate and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 100 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding polytetrafluoroethylene into the mixture obtained in the step (1), continuously heating the reaction kettle to 170 ℃, stirring and mixing at the rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roll grinder to obtain the corrugated board linear bearing lubricating grease.
Example 2:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 85 parts of a mixture; polyester: 1 part; trimellitate ester: 3 parts of a mixture; lithium 12-hydroxystearate: 9 parts of (1); white carbon black: 11 parts; octyl-butyldiphenylamine: 0.2 part; dialkyl diphenylamine: 0.8 part; boron nitride: 1 part; sodium nitrite: 1 part; molybdenum disulfide: 3 parts, wherein the polyalphaolefin has a viscosity of 420cSt at 40 ℃.
The preparation method of the lubricating grease for the corrugated board linear bearing comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, boron nitride and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 130 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding molybdenum disulfide into the mixture obtained in the step (1), continuously heating the reaction kettle to 220 ℃, stirring and mixing at the rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roll grinder to obtain the corrugated board linear bearing lubricating grease.
Example 3:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 80 parts of a mixture; polyester: 1.2 parts; trimellitate ester: 1.3 parts; lithium 12-hydroxystearate: 5 parts of a mixture; white carbon black: 8 parts of a mixture; octyl-butyldiphenylamine: 0.1 part; dialkyl diphenylamine: 0.15 part; potassium borate: 0.1 part; boron nitride: 0.2 part; sodium nitrite: 2.65 parts; polytetrafluoroethylene: 0.3 part; graphite: 0.5 part; molybdenum disulfide: 0.5 part, wherein the polyalphaolefin has a viscosity of 396cSt at 40 ℃.
The preparation method of the corrugated board linear bearing lubricating grease comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, potassium borate, boron nitride and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 120 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding polytetrafluoroethylene, graphite and molybdenum disulfide into the mixture obtained in the step (1), continuously heating the reaction kettle to 200 ℃, stirring and mixing at a rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roll grinder to obtain the corrugated board linear bearing lubricating grease.
Example 4:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 80 parts of a binder; polyester: 0.5 part; trimellitate ester: 2 parts of a mixture; lithium 12-hydroxystearate: 5 parts of a mixture; white carbon black: 8 parts of a mixture; octyl-butyldiphenylamine: 0.1 part; dialkyl diphenylamine: 0.15 part; potassium borate: 0.1 part; boron nitride: 0.2 part; sodium nitrite: 2.65 parts; polytetrafluoroethylene: 0.3 part; graphite: 0.5 part; molybdenum disulfide: 0.5 part, wherein the polyalphaolefin has a viscosity of 396cSt at 40 ℃.
The preparation method of the corrugated board linear bearing lubricating grease comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, potassium borate, boron nitride and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 120 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding polytetrafluoroethylene, graphite and molybdenum disulfide into the mixture obtained in the step (1), continuously heating the reaction kettle to 200 ℃, stirring and mixing at a rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roller grinder to obtain the corrugated board line bearing lubricating grease.
Example 5:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 80 parts of a mixture; polyester: 2 parts of (1); trimellitate ester: 0.5 part; lithium 12-hydroxystearate: 5 parts of a mixture; white carbon black: 8 parts; octyl-butyldiphenylamine: 0.1 part; dialkyl diphenylamine: 0.15 part; potassium borate: 0.1 part; boron nitride: 0.2 part; sodium nitrite: 2.65 parts; polytetrafluoroethylene: 0.3 part; graphite: 0.5 part; molybdenum disulfide: 0.5 part, wherein the polyalphaolefin has a viscosity of 396cSt at 40 ℃.
The preparation method of the corrugated board linear bearing lubricating grease comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, potassium borate, boron nitride and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 120 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding polytetrafluoroethylene, graphite and molybdenum disulfide into the mixture obtained in the step (1), continuously heating the reaction kettle to 200 ℃, stirring and mixing at a rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roll grinder to obtain the corrugated board linear bearing lubricating grease.
Example 6:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 80 parts of a mixture; polyester: 1.2 parts of; trimellitate ester: 1.3 parts; lithium 12-hydroxystearate: 2 parts of (1); white carbon black: 11 parts; octyl-butyldiphenylamine: 0.1 part; dialkyl diphenylamine: 0.15 part; potassium borate: 0.1 part; boron nitride: 0.2 part; sodium nitrite: 2.65 parts; polytetrafluoroethylene: 0.3 part; graphite: 0.5 part; molybdenum disulfide: 0.5 part, wherein the polyalphaolefin has a viscosity of 396cSt at 40 ℃.
The preparation method of the corrugated board linear bearing lubricating grease comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, potassium borate, boron nitride and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 120 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding polytetrafluoroethylene, graphite and molybdenum disulfide into the mixture obtained in the step (1), continuously heating the reaction kettle to 200 ℃, stirring and mixing at a rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roller grinder to obtain the corrugated board line bearing lubricating grease.
Example 7:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 80 parts of a mixture; polyester: 1.2 parts; trimellitate ester: 1.3 parts; lithium 12-hydroxystearate: 9 parts of (1); white carbon black: 4 parts; octyl-butyldiphenylamine: 0.1 part; dialkyl diphenylamine: 0.15 part; potassium borate: 0.1 part; boron nitride: 0.2 part; sodium nitrite: 2.65 parts; polytetrafluoroethylene: 0.3 part; graphite: 0.5 part; molybdenum disulfide: 0.5 part, wherein the polyalphaolefin has a viscosity of 396cSt at 40 ℃.
The preparation method of the corrugated board linear bearing lubricating grease comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, potassium borate, boron nitride and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 120 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding polytetrafluoroethylene, graphite and molybdenum disulfide into the mixture obtained in the step (1), continuously heating the reaction kettle to 200 ℃, stirring and mixing at a rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roller grinder to obtain the corrugated board line bearing lubricating grease.
Example 8:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 80 parts of a binder; polyester: 1.2 parts; trimellitate ester: 1.3 parts; lithium 12-hydroxystearate: 5 parts of a mixture; white carbon black: 8 parts of a mixture; octyl-butyldiphenylamine: 0.2 part; dialkyl diphenylamine: 0.05 part; potassium borate: 0.1 part; boron nitride: 0.2 part; sodium nitrite: 2.65 parts; polytetrafluoroethylene: 0.3 part; graphite: 0.5 part; molybdenum disulfide: 0.5 part, wherein the polyalphaolefin has a viscosity of 396cSt at 40 ℃.
The preparation method of the lubricating grease for the corrugated board linear bearing comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, potassium borate, boron nitride and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 120 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding polytetrafluoroethylene, graphite and molybdenum disulfide into the mixture obtained in the step (1), continuously heating the reaction kettle to 200 ℃, stirring and mixing at a rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roll grinder to obtain the corrugated board linear bearing lubricating grease.
Example 9:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 80 parts of a binder; polyester: 1.2 parts of; trimellitate ester: 1.3 parts; lithium 12-hydroxystearate: 5 parts of a mixture; white carbon black: 8 parts of a mixture; octyl-butyldiphenylamine: 0.04 parts; dialkyl diphenylamine: 0.21 part; potassium borate: 0.1 part; boron nitride: 0.2 part; sodium nitrite: 2.65 parts; polytetrafluoroethylene: 0.3 part; graphite: 0.5 part; molybdenum disulfide: 0.5 part, wherein the polyalphaolefin has a viscosity of 396cSt at 40 ℃.
The preparation method of the lubricating grease for the corrugated board linear bearing comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, potassium borate, boron nitride and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 120 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding polytetrafluoroethylene, graphite and molybdenum disulfide into the mixture obtained in the step (1), continuously heating the reaction kettle to 200 ℃, stirring and mixing at a rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roll grinder to obtain the corrugated board linear bearing lubricating grease.
Example 10:
the corrugated board line bearing lubricating grease comprises the following components in parts by mass: poly-alpha-olefins: 80 parts of a binder; polyester: 1.2 parts of; trimellitate ester: 1.3 parts; lithium 12-hydroxystearate: 5 parts of a mixture; white carbon black: 8 parts of a mixture; octyl-butyldiphenylamine: 0.1 part; dialkyl diphenylamine: 0.15 part; potassium borate: 0.1 part; boron nitride: 0.2 part; sodium nitrite: 2.65 parts; polytetrafluoroethylene: 0.3 part; graphite: 0.5 part; molybdenum disulfide: 0.5 part, wherein the polyalphaolefin has a viscosity of 390cSt at 40 ℃.
The preparation method of the corrugated board linear bearing lubricating grease comprises the following steps:
(1) Adding poly-alpha-olefin, polyester, trimellitate, 12-lithium hydroxystearate, white carbon black, octyl-butyl diphenylamine, dialkyl diphenylamine, potassium borate, boron nitride and sodium nitrite into a reaction kettle for mixing, heating the reaction kettle to 120 ℃, stirring at the rotating speed of 1000r/min, and stirring for 30 minutes to obtain a mixture;
(2) Adding polytetrafluoroethylene, graphite and molybdenum disulfide into the mixture obtained in the step (1), continuously heating the reaction kettle to 200 ℃, stirring and mixing at a rotating speed of 1500r/min, and slowly cooling to normal temperature after 24 hours;
(3) And (3) sending the mixture obtained in the step (2) into a centrifugal homogenizer for dispersion treatment, and then grinding on a three-roll grinder to obtain the corrugated board linear bearing lubricating grease.
Test examples
The performance of the grease for corrugated board wire bearings of examples 1 to 10 was measured, and the results are shown in table 1.
Table 1: corrugated board line bearing grease performance detection result
As can be seen from table 1, the dropping point of the grease for corrugated board linear bearings of the present invention is not lower than 332 ℃, the highest dropping point can reach 395 ℃, the steel mesh oil of the grease for corrugated board linear bearings of the present invention is not more than 0.46%, and the minimum dropping point can reach 0.27%, the evaporation loss of the grease for corrugated board linear bearings of the present invention is not more than 0.39%, and the minimum dropping point can reach 0.19%, the water spray loss of the grease for corrugated board linear bearings of the present invention is not more than 0.65%, and the minimum dropping point can reach 0.32%.
The analysis proves that the lubricating grease for the corrugated board line bearing has stronger high temperature resistance, is not easy to coke and run off, can meet the working condition requirements of high temperature, high load and steam pollution of the existing corrugated board line, can play a role in lubricating the corrugated board line bearing with long service life, and ensures the production efficiency of the corrugated board line.
Meanwhile, as can be seen from the comparison between example 3 and examples 4 to 5, the polyester and trimellitate in the grease for corrugated board linear bearings were adjusted so that the mass ratio of the polyester to the trimellitate was not (1-2): when the lubricating grease is in the range of (1-3), the abrasion resistance of the lubricating grease is obviously reduced, and the water spray loss of the lubricating grease is also obviously increased, which shows that the polyester and the trimellitate in a specific proportion in the lubricating grease for the corrugated board line bearing of the invention play a synergistic effect on the abrasion resistance of the lubricating grease and the reduction of the water spray loss.
In comparative example 3 and examples 6 to 7, it is known that, under the condition that other components, proportions and preparation methods are not changed, the mass ratio of the 12-hydroxy lithium stearate to the white carbon black in the corrugated board line bearing grease is adjusted to be not (3-9): and (7) in the range of (11), the dropping point of the lubricating grease is obviously reduced, and the oil distribution amount of the steel mesh oil distribution and the loss amount of evaporation loss of the lubricating grease are also obviously increased, which shows that the lithium 12-hydroxystearate and the white carbon black in a specific proportion in the lubricating grease for corrugated board linear bearing can synergistically reduce the loss of the lubricating grease in the using process and prolong the service life of the lubricating grease.
As can be seen from comparative example 3 and examples 8 to 9, octyl-butyldiphenylamine and dialkyldiphenylamine in the bearing grease for corrugated board lines were adjusted so that the mass ratio was not (1-3) without changing the other components, ratios, and preparation methods: in the range of (1-5), the oxidation stability of the grease is obviously deteriorated, which shows that octyl-butyldiphenylamine and dialkyldiphenylamine in a specific proportion in the corrugated board line bearing grease of the present invention have a synergistic effect on the high-temperature oxidation resistance of the grease.
It can be seen from comparison between example 3 and example 10 that, when the polyalphaolefin having a viscosity of 396cSt at 40 ℃ is replaced with the polyalphaolefin having a viscosity of 390cSt at 40 ℃ without changing other components, ratios and preparation methods, the dropping point of the grease is significantly reduced, which indicates that when the polyalphaolefin having a viscosity of 396cSt at 40 ℃ is used as the base oil in the grease, the finally prepared grease has a higher dropping point and better lubrication performance.
In addition, in the actual operation, when the operator uses the grease of the corrugated board wire bearing of example 3 of the present invention on the corrugated board wire bearing having a width of 2.2 to 2.8m and a speed of 180 to 280m/min (the average running time per day of the corrugated board wire is 16 hours), the grease-adding period can reach 30 days, while the grease of the other conventional greases that are commercially available and whose base oil is polyalphaolefin is only 7 days when used on the corrugated board wire bearing of the same condition.
Meanwhile, operators find that when the corrugated board line bearing lubricating grease disclosed by the embodiment 3 of the invention is used on a bearing under the working condition of 200 ℃, the inside of the bearing is not coked and carbon deposition is not generated.
In conclusion, the corrugated board line bearing lubricating grease disclosed by the invention has the advantages of better comprehensive performance, strong bearing capacity, high oil film strength, good high-temperature lubricating performance, oxidation stability, extremely long high-temperature service life, excellent extrusion performance, mechanical stability, water resistance and abrasion resistance, and can provide excellent lubricating effect for corrugated roller, preheating cylinder and pressure roller bearings of corrugated board lines.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (5)
1. The corrugated board line bearing lubricating grease is characterized by comprising the following components in parts by mass:
poly-alpha-olefins: 60-85 parts;
synthesis of ester: 2-5 parts;
thickening agent: 10-20 parts;
high-temperature antioxidant: 0.1-1 part;
extreme pressure additive: 0.1-1 part;
antirust additive: 1-3 parts;
solid lubricant: 1-3 parts;
the polyalphaolefin has a viscosity of from 300 to 420cSt at 40 ℃;
the synthetic ester is prepared from polyester and trimellitic acid ester according to the mass ratio (1-2): (1-3);
the thickening agent is prepared from 12-hydroxy lithium stearate and white carbon black according to the mass ratio of (3-9): (7-11);
the high-temperature antioxidant is prepared from octyl-butyl diphenylamine and dialkyl diphenylamine in a mass ratio of (1-3): (1-5);
the solid lubricant is at least one of polytetrafluoroethylene, graphite and molybdenum disulfide.
2. A corrugated board wire bearing grease according to claim 1, characterized in that: the extreme pressure additive is at least one of potassium borate and boron nitride.
3. A corrugated board wire bearing grease according to claim 1, characterized in that: the antirust additive is sodium nitrite.
4. A method for producing a grease for a corrugated board wire bearing according to any one of claims 1 to 3, characterized in that: the method comprises the following steps:
(1) Mixing poly-alpha-olefin, synthetic ester, a thickening agent, a high-temperature antioxidant, an extreme pressure additive and an antirust additive, heating and stirring to obtain a mixture;
(2) Adding a solid lubricant into the mixture obtained in the step (1), heating, stirring and cooling to normal temperature;
(3) And (3) homogenizing the mixture obtained in the step (2) and then grinding to obtain the corrugated board line bearing lubricating grease.
5. The method for preparing a corrugated board wire bearing grease according to claim 4, characterized in that: the temperature after heating in the step (1) is 100-130 ℃, and the temperature after heating in the step (2) is 170-220 ℃.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219489A (en) * | 2015-10-29 | 2016-01-06 | 山东万友工业油脂有限公司 | A kind of lithium soap grease and preparation method thereof |
| CN107164026A (en) * | 2017-05-22 | 2017-09-15 | 新乡市恒星科技有限责任公司 | Semifluid automatically cleaning wirerope lubricating grease and preparation method thereof |
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| US6010986A (en) * | 1998-07-31 | 2000-01-04 | The Lubrizol Corporation | Alcohol borate esters to improve bearing corrosion in engine oils |
| CN102140382B (en) * | 2011-01-28 | 2013-10-30 | 华南理工大学 | Hub bearing lubricating grease and preparation method thereof |
| JP5930343B2 (en) * | 2011-09-15 | 2016-06-08 | クリューバー リュブリケーション ミュンヘン ソシエタス ヨーロピア ウント コンパニー コマンディートゲゼルシャフトＫｌｕｅｂｅｒ Ｌｕｂｒｉｃａｔｉｏｎ Ｍｕｅｎｃｈｅｎ ＳＥ ＆ Ｃｏ．ＫＧ | Heat resistant grease |
| CN102977978B (en) * | 2012-11-27 | 2015-06-24 | 无锡意格尔润滑科技股份有限公司 | Bearing lubricating grease and preparation method thereof |
| JP5988376B2 (en) * | 2012-12-03 | 2016-09-07 | 協同油脂株式会社 | Grease composition and bearing for main motor bearings of railway vehicles |
| CN104804842A (en) * | 2014-01-27 | 2015-07-29 | 中国石油化工股份有限公司 | Environmentally friendly lubricating grease composition and preparation method thereof |
| CN105950267B (en) * | 2016-05-23 | 2019-01-22 | 中国铁道科学研究院金属及化学研究所 | A kind of environment-friendly type wheel-rail lubricating rouge and preparation method thereof |
| US20190127656A1 (en) * | 2017-10-31 | 2019-05-02 | Exxonmobil Research And Engineering Company | Lubricant compositions comprising polymeric diphenylamine antioxidants |
| CN109337737A (en) * | 2018-11-12 | 2019-02-15 | 安徽中天石化股份有限公司 | A kind of high temperature resistant bearing grease and preparation method thereof |
| CN110951521A (en) * | 2019-11-14 | 2020-04-03 | 北京市军鹰星润滑油加工厂 | Lubricating grease special for corrugating machine bearing and preparation method thereof |
| CN111704951B (en) * | 2020-06-29 | 2022-06-03 | 金鹰润滑材料(金湖)有限公司 | Ultralow-temperature silent bearing lubricating grease and preparation process thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219489A (en) * | 2015-10-29 | 2016-01-06 | 山东万友工业油脂有限公司 | A kind of lithium soap grease and preparation method thereof |
| CN107164026A (en) * | 2017-05-22 | 2017-09-15 | 新乡市恒星科技有限责任公司 | Semifluid automatically cleaning wirerope lubricating grease and preparation method thereof |
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