CN115521818A - Valve actuator lubricating grease and preparation method thereof - Google Patents

Valve actuator lubricating grease and preparation method thereof Download PDF

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Publication number
CN115521818A
CN115521818A CN202211197610.6A CN202211197610A CN115521818A CN 115521818 A CN115521818 A CN 115521818A CN 202211197610 A CN202211197610 A CN 202211197610A CN 115521818 A CN115521818 A CN 115521818A
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China
Prior art keywords
parts
valve actuator
lubricating grease
grease
antioxidant
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CN202211197610.6A
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Chinese (zh)
Inventor
张群敏
许华平
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Wuxi Feitian Lubricant Technology Co ltd
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Wuxi Feitian Lubricant Technology Co ltd
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Priority to CN202211197610.6A priority Critical patent/CN115521818A/en
Publication of CN115521818A publication Critical patent/CN115521818A/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
    • 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
    • C10M2203/10—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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
    • 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
    • C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
    • 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
    • C10M2207/126—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
    • C10M2207/127—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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
    • C10M2209/126—Polysaccharides, e.g. cellulose, biopolymers 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
    • C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2213/06—Perfluoro polymers
    • C10M2213/062—Polytetrafluoroethylene [PTFE]
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/026—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrile group
    • 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
    • C10N2030/36—Seal compatibility, e.g. with rubber
    • 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

The invention discloses a valve actuator lubricating grease and a preparation method thereof, wherein the lubricating grease is prepared from the following raw materials: 300# paraffin oil, poly-alpha-olefin synthetic base oil, XY-200 oily thickener, T361A antiwear extreme pressure additive, L57 antioxidant, ABS8434 resin, polytetrafluoroethylene, dodecahydroxystearic acid, stearic acid, lithium hydroxide, diphenylamine, sebacic acid, antioxidant and corrosion inhibitor T202 and antirust agent T706. The valve actuator lubricating grease provided by the invention has lubricating and wear-resisting functions, and also has good compatibility with rubber/plastic parts, so that a sealing ring at a contact part is not easy to deform, and the service life of a valve actuator can be prolonged.

Description

Valve actuator lubricating grease and preparation method thereof
Technical Field
The invention relates to the field of lubricating grease, in particular to valve actuator lubricating grease and a preparation method thereof.
Background
The valve actuator is a device used for operating the valve and connected with the valve, and the movement process of the device can be controlled by the stroke, the torque or the axial thrust. The valve actuator can be divided into a straight stroke and an angular stroke according to the motion mode; the straight stroke driving device is a multi-rotary valve driving device and is mainly suitable for various gate valves, stop valves, throttle valves and the like; the angular travel driving device is a partial rotation driving device which only rotates 90 degrees, and is mainly suitable for various ball valves, butterfly valves and the like.
The valve actuator can be divided into various forms such as manual (handle hand wheel type, spring lever type), electric (electromagnetic type, motor type), pneumatic (diaphragm type, cylinder type, blade type, air engine type, film and ratchet wheel combined type), hydraulic (hydraulic cylinder type, hydraulic motor type), linkage (electro-hydraulic linkage, gas-liquid linkage) and the like according to the energy form. Among the various types of valve actuators, electric actuators are dominant, which are mainly used in closed-circuit valves. Pneumatic devices are widely used in explosion-proof applications in the day ahead, wherein diaphragm pneumatic devices are mainly used on regulating valves. The hydraulic device is widely used on a natural emergency shut-off valve and a wellhead blowout valve on a long-distance pipeline. The hand wheel of the manual device is mostly arranged on the low and medium pressure stop valve and the gate valve; the handle is used for valves such as high-pressure and ultrahigh-pressure stop valves, ball valves, cocks and the like. The gas-liquid linkage device is mostly used for gas transmission pipelines, and in field occasions without power supplies, the power supply of the gas-liquid linkage device is gas in the pipelines.
The valve actuator does not leave lubricant during normal operation. In the pneumatic actuator of the valve, rubber sealing elements are arranged among a solenoid valve of a pneumatic assembly, a shaft core of a cylinder and a valve body, and an improper lubricant is used on the sealing elements, so that the sealing elements can rapidly lose efficacy, and the pneumatic assembly of the valve can immediately lose efficacy once the sealing elements lose efficacy.
Unlike the friction of metal parts, the friction of rubber/plastic under pressure has significant adhesive deformation, so that the lubricating products special for metal parts are not suitable for lubricating rubber/plastic materials.
The particularity of the valve pneumatic assembly determines that the required lubricating grease not only has a lubricating and wear-resisting effect, but also ensures good compatibility with rubber/plastic parts, so that a sealing ring at a contact part is not easy to deform.
The existing market lacks a lubricating grease product specially used for a valve actuator, and the compatibility of general lubricating grease and a rubber sealing ring is poor, so that the sealing ring is easy to deform, and the service life of the valve actuator is shortened.
Disclosure of Invention
In order to solve the problems, the invention provides the valve actuator lubricating grease which has a good lubricating and anti-wear effect, has good compatibility with a rubber sealing ring, enables the sealing ring at a contact part not to be easily deformed, and prolongs the service life of the valve actuator.
In order to realize the purpose, the invention adopts the technical scheme that:
the valve actuator lubricating grease is prepared from the following raw materials in parts by weight:
28-42 parts of 300# paraffin oil
58-72 parts of poly-alpha olefin synthetic base oil
15-23 parts of XY-200 oily thickener
3-7 parts of T361A antiwear extreme pressure additive
3-6 parts of L57 antioxidant
3-5 parts of ABS8434 resin
2-4 parts of polytetrafluoroethylene
2-5 parts of dodecahydroxystearic acid
2-4 parts of stearic acid
1-3 parts of lithium hydroxide
1-3 parts of diphenylamine
1-2 parts of sebacic acid
1-2 parts of antioxidant corrosion inhibitor T202
1-2 parts of antirust agent T706.
The types of the polyalphaolefin synthetic base oil are PAO8 and PAO150, wherein the PAO8 accounts for 26-48 parts, and the balance is PAO150.
The valve actuator lubricating grease is prepared from the following raw materials in parts by weight:
32-38 parts of 300# paraffin oil
34-42 parts of PAO8 poly-alpha olefin synthetic base oil
22-32 parts of PAO150 poly-alpha olefin synthetic base oil
18-20 parts of XY-200 oily thickener
4-5 parts of T361A antiwear extreme pressure additive
4-5 parts of L57 antioxidant
3.5-4.5 parts of ABS8434 resin
2.5 to 3.5 portions of polytetrafluoroethylene
3-4 parts of dodecahydroxystearic acid
Stearic acid 2.5-3.5 parts
1.5-2.5 parts of lithium hydroxide
1.5-2.5 parts of diphenylamine
1.2-1.6 parts of sebacic acid
1-1.5 portions of oxidation and corrosion inhibitor T202
1.2-1.5 parts of antirust agent T706.
The penetration of the valve actuator lubricating grease is 265-295, the evaporation capacity of the lubricating grease for 22 hours at 99 ℃ is less than 2%, the oil distribution of a steel mesh for 24 hours at 100 ℃ is less than 5%, and the volume and mass change of the lubricating grease in a fluororubber and nitrile rubber compatibility test for 70 hours at 100 ℃ is not more than 10%.
The preparation method of the valve actuator lubricating grease comprises the following steps:
1) Adding XY-200 oily thickener into 1/2 of poly-alpha-olefin synthetic base oil according to the proportion, uniformly mixing in a blending kettle, stirring, slowly heating to 150-180 ℃, and then preserving heat for 1.5-2h;
2) Adding 300# paraffin oil, dodecahydroxystearic acid, stearic acid and sebacic acid, stirring uniformly, heating to 200-230 ℃, then preserving heat for 1-1.5h, and stopping heating after the heat preservation time;
3) Adding 1/2 of poly-alpha-olefin synthetic base oil again, stirring uniformly, quenching the mixture, and homogenizing the mixture by a homogenizer to obtain base ester;
4) Adding a T361A anti-wear extreme pressure additive, an L57 antioxidant, ABS8434 resin, polytetrafluoroethylene, lithium hydroxide, diphenylamine, an antioxidant and corrosion inhibitor T202 and an antirust agent T706 into the obtained base grease, homogenizing by a homogenizer, and filtering by a high-pressure filter to obtain the valve actuator lubricating grease.
Compared with the prior art, the invention has the following beneficial effects:
according to the valve actuator lubricating grease provided by the invention, the No. 300 paraffin oil is added into the polyalphaolefin synthetic base oil, the paraffin oil has the basic characteristics of less volatile matter, high flash point and low aromatic hydrocarbon content, the high flash point and low volatile matter of the paraffin oil provide better weather resistance and the characteristic of less volatile matter at high temperature for the processing of rubber products, the low aromatic hydrocarbon content and the low volatile matter of the paraffin oil are matched to play a very important role in the application of the rubber products, the low aromatic hydrocarbon content improves the anti-oxidative degradation performance of rubber, the low volatile matter is favorable for preventing aging shrinkage, the bad appearance of the products is favorable for improving, and the two characteristics are favorable for prolonging the service life of the rubber products. The added XY-200 oily thickener can be dissolved in base oil, has good thickening property, and has good compatibility and compatibility with resin, thickener and the like. The added T361A anti-wear extreme pressure additive has good anti-wear extreme pressure effect and long service life. The lubricating grease has wide adaptability to metal materials and good high-temperature resistance, does not damage the colloid structure of the lubricating grease, does not influence other physical and chemical properties of the lubricating grease, and has good compatibility with other active additives. The added L57 antioxidant is a liquid octyl butyl diphenylamine antioxidant, has high nitrogen content, shows a higher total base number, has good sealing compatibility, can stabilize the lubricating grease, prolongs the service life of the lubricating grease, and effectively controls the viscosity increase of the lubricating grease caused by oxidation. The added ABS8434 resin has excellent mechanical property, super-good impact strength, excellent wear resistance, good dimensional stability and oil resistance, and can be used at extremely low temperature. The added polytetrafluoroethylene is used as a solid lubricant, and the performances of corrosion resistance, chemical reagent resistance, wear resistance, toughness and high strength of the polytetrafluoroethylene are fully exerted. Therefore, the valve actuator lubricating grease provided by the invention has the lubricating and anti-wear functions, and also has good compatibility with rubber/plastic parts, so that a sealing ring at a contact part is not easy to deform, and the service life of a valve actuator can be prolonged.
Detailed Description
The invention provides the valve actuator lubricating grease which is better in combination with low-temperature performance, can reduce the cost as much as possible, can lubricate well and has good compatibility with rubber/plastic parts aiming at the lubricating characteristic required by the valve actuator.
Several embodiments of the invention are given below
Example 1
The valve actuator lubricating grease is prepared from the following raw materials in parts by weight:
32 portions of 300# paraffin oil
40 portions of PAO8 poly-alpha olefin synthetic base oil
32 portions of PAO150 poly-alpha olefin synthetic base oil
XY-200 oily thickener 15 parts
4.5 portions of T361A antiwear extreme pressure additive
3 portions of L57 antioxidant
4.5 parts of ABS8434 resin (Shanghai high bridge)
2.5 parts of polytetrafluoroethylene
3.2 parts of dodecahydroxystearic acid
Stearic acid 2 parts
1.5 parts of lithium hydroxide
1 part of diphenylamine
Sebacic acid 2 parts
1.2 portions of antioxidant corrosion inhibitor T202
And 1.3 parts of antirust agent T706.
The preparation method of the valve actuator lubricating grease comprises the following steps:
1) Adding XY-200 oily thickener into 1/2 polyalphaolefin synthetic base oil according to the proportion, uniformly mixing in a blending kettle (1T), stirring, slowly heating to 160 ℃, and then preserving heat for 105min;
2) Adding 300# paraffin oil, dodecahydroxystearic acid, stearic acid and sebacic acid, stirring uniformly, heating to 210 ℃, then preserving heat for 85min, and stopping heating after the heat preservation time;
3) Adding 1/2 of poly-alpha-olefin synthetic base oil again, stirring uniformly, quenching the mixture, and homogenizing the mixture by a homogenizer (GYB 3000-3S) to obtain base ester;
4) Adding a T361A anti-wear extreme pressure additive, an L57 antioxidant, ABS8434 resin, polytetrafluoroethylene, lithium hydroxide, diphenylamine, an antioxidant and corrosion inhibitor T202 and an antirust agent T706 into the obtained base grease, homogenizing the mixture by a homogenizer (GYB 3000-3S), and filtering the mixture by a high-pressure filter to obtain the valve actuator lubricating grease.
Example 2
The valve actuator lubricating grease is prepared from the following raw materials in parts by weight:
38 portions of 300# paraffin oil
34 parts of PAO8 poly-alpha olefin synthetic base oil
30 portions of PAO150 poly-alpha olefin synthetic base oil
18 portions of XY-200 oily thickener
3 portions of T361A antiwear extreme pressure additive
L57 antioxidant 6 parts
3.5 parts of ABS8434 resin
2 portions of polytetrafluoroethylene
3.5 parts of dodecahydroxystearic acid
Stearic acid 3 parts
1.8 parts of lithium hydroxide
3 parts of diphenylamine
Sebacic acid 1.2 parts
1.5 portions of antioxidant corrosion inhibitor T202
And 1.2 parts of antirust agent T706.
The preparation method of the valve actuator lubricating grease comprises the following steps:
1) Adding XY-200 oily thickener into 1/2 polyalphaolefin synthetic base oil according to the proportion, uniformly mixing in a blending kettle (1T), stirring, slowly heating to 170 ℃, and then preserving heat for 100min;
2) Adding 300# paraffin oil, dodecahydroxystearic acid, stearic acid and sebacic acid, stirring uniformly, heating to 220 ℃, then preserving heat for 70min, and stopping heating after the heat preservation time;
3) Adding 1/2 of poly-alpha-olefin synthetic base oil again, stirring uniformly, quenching the mixture, and homogenizing the mixture by a homogenizer (GYB 3000-3S) to obtain base ester;
4) Adding a T361A anti-wear extreme pressure additive, an L57 antioxidant, ABS8434 resin, polytetrafluoroethylene, lithium hydroxide, diphenylamine, an antioxidant and corrosion inhibitor T202 and an antirust agent T706 into the obtained base grease, homogenizing the mixture by a homogenizer (GYB 3000-3S), and filtering the mixture by a high-pressure filter to obtain the valve actuator lubricating grease.
Example 3
The valve actuator lubricating grease is prepared from the following raw materials in parts by weight:
28 parts of 300# paraffin oil
42 parts of PAO8 poly-alpha olefin synthetic base oil
26 portions of PAO150 poly-alpha olefin synthetic base oil
20 parts of XY-200 oily thickener
7 portions of T361A antiwear extreme pressure additive
L57 antioxidant 4.5 parts
ABS8434 resin 4 parts
3.5 parts of polytetrafluoroethylene
5 parts of dodecahydroxystearic acid
Stearic acid 2.5 parts
2 parts of lithium hydroxide
Diphenylamine 1.5 parts
Sebacic acid 1.5 parts
1 portion of oxidation and corrosion inhibitor T202
And 2 parts of antirust agent T706.
The preparation method of the valve actuator lubricating grease comprises the following steps:
1) Adding XY-200 oily thickener into 1/2 polyalphaolefin synthetic base oil according to the proportion, uniformly mixing in a blending kettle (1T), stirring, slowly heating to 150 ℃, and then preserving heat for 120min;
2) Adding 300# paraffin oil, dodecahydroxystearic acid, stearic acid and sebacic acid, stirring uniformly, heating to 200 ℃, then preserving heat for 90min, and stopping heating after the heat preservation time;
3) Adding 1/2 of poly-alpha-olefin synthetic base oil again, stirring uniformly, quenching the mixture, and homogenizing the mixture by a homogenizer (GYB 3000-3S) to obtain base ester;
4) Adding T361A anti-wear extreme pressure additive, L57 antioxidant, ABS8434 resin, polytetrafluoroethylene, lithium hydroxide, diphenylamine, antioxidant and corrosion inhibitor T202 and antirust agent T706 into the obtained base grease, homogenizing by a homogenizer, and filtering by a high-pressure filter to obtain the valve actuator lubricating grease.
Example 4
The valve actuator lubricating grease is prepared from the following raw materials in parts by mass:
42 parts of 300# paraffin oil
36 portions of PAO8 poly-alpha olefin synthetic base oil
22 portions of PAO150 poly-alpha olefin synthetic base oil
23 parts of XY-200 oily thickener
5 portions of T361A antiwear extreme pressure additive
L57 antioxidant 4 parts
3 parts of ABS8434 resin
4 portions of polytetrafluoroethylene
2 parts of dodecahydroxystearic acid
Stearic acid 4 parts
1 part of lithium hydroxide
2.5 parts of diphenylamine
Sebacic acid 1.6 parts
Antioxidant anticorrosive agent T202 parts
And 1 part of antirust agent T706.
The preparation method of the valve actuator lubricating grease comprises the following steps:
1) Adding XY-200 oily thickener into 1/2 polyalphaolefin synthetic base oil according to the proportion, uniformly mixing in a blending kettle (1T), stirring, slowly heating to 180 ℃, and then preserving heat for 90min;
2) Adding 300# paraffin oil, dodecahydroxystearic acid, stearic acid and sebacic acid, stirring uniformly, heating to 230 ℃, then preserving heat for 60min, and stopping heating after the heat preservation time;
3) Adding 1/2 of poly-alpha-olefin synthetic base oil again, stirring uniformly, quenching the mixture, and homogenizing the mixture by a homogenizer (GYB 3000-3S) to obtain base ester;
4) Adding a T361A anti-wear extreme pressure additive, an L57 antioxidant, ABS8434 resin, polytetrafluoroethylene, lithium hydroxide, diphenylamine, an antioxidant and corrosion inhibitor T202 and an antirust agent T706 into the obtained base grease, homogenizing by a homogenizer, and filtering by a high-pressure filter to obtain the valve actuator lubricating grease.
Example 5
The valve actuator lubricating grease is prepared from the following raw materials in parts by weight:
34 portions of 300# paraffin oil
38 portions of PAO8 poly-alpha olefin synthetic base oil
24 portions of PAO150 poly-alpha olefin synthetic base oil
19 parts of XY-200 oily thickener
6 portions of T361A antiwear extreme pressure additive
5 portions of L57 antioxidant
ABS8434 resin 4.2 parts
3 portions of polytetrafluoroethylene
4 parts of dodecahydroxystearic acid
Stearic acid 3.5 parts
2.5 parts of lithium hydroxide
2.2 parts of diphenylamine
Sebacic acid 1 part
1.3 portions of antioxidant corrosion inhibitor T202
And 1.6 parts of antirust agent T706.
The preparation method of the valve actuator lubricating grease comprises the following steps:
1) Adding XY-200 oily thickener into 1/2 polyalphaolefin synthetic base oil according to the proportion, uniformly mixing in a blending kettle (1T), stirring, slowly heating to 165 ℃, and then preserving heat for 110min;
2) Adding 300# paraffin oil, dodecahydroxystearic acid, stearic acid and sebacic acid, stirring uniformly, heating to 215 ℃, then preserving heat for 75min, and stopping heating after the heat preservation time;
3) Adding 1/2 of poly-alpha-olefin synthetic base oil again, stirring uniformly, quenching the mixture, and homogenizing the mixture by a homogenizer (GYB 3000-3S) to obtain base ester;
4) Adding T361A anti-wear extreme pressure additive, L57 antioxidant, ABS8434 resin, polytetrafluoroethylene, lithium hydroxide, diphenylamine, antioxidant and corrosion inhibitor T202 and antirust agent T706 into the obtained base grease, homogenizing by a homogenizer, and filtering by a high-pressure filter to obtain the valve actuator lubricating grease.
Example 6
The valve actuator lubricating grease is prepared from the following raw materials in parts by mass:
300# Paraffin oil 36 parts
35 portions of PAO8 poly-alpha olefin synthetic base oil
28 portions of PAO150 poly-alpha olefin synthetic base oil
XY-200 oily thickener 17 parts
4 portions of T361A antiwear extreme pressure additive
L57 antioxidant 4.8 parts
ABS8434 resin 5 parts
2.8 parts of polytetrafluoroethylene
3 parts of dodecahydroxystearic acid
Stearic acid 2.8 parts
3 portions of lithium hydroxide
2 parts of diphenylamine
Sebacic acid 1.3 parts
1.1 portions of antioxidant corrosion inhibitor T202
1.4 parts of antirust agent T706.
The preparation method of the valve actuator lubricating grease comprises the following steps:
1) Adding XY-200 oily thickener into 1/2 polyalphaolefin synthetic base oil according to the proportion, uniformly mixing in a blending kettle (1T), stirring, slowly heating to 175 ℃, and then keeping the temperature for 95min;
2) Adding 300# paraffin oil, dodecahydroxystearic acid, stearic acid and sebacic acid, stirring uniformly, heating to 225 ℃, then preserving heat for 65min, and stopping heating after the heat preservation time;
3) Adding 1/2 of poly-alpha-olefin synthetic base oil again, stirring uniformly, quenching the mixture, and homogenizing the mixture by a homogenizer (GYB 3000-3S) to obtain base ester;
4) Adding a T361A anti-wear extreme pressure additive, an L57 antioxidant, ABS8434 resin, polytetrafluoroethylene, lithium hydroxide, diphenylamine, an antioxidant and corrosion inhibitor T202 and an antirust agent T706 into the obtained base grease, homogenizing by a homogenizer, and filtering by a high-pressure filter to obtain the valve actuator lubricating grease.
The valve actuator lubricating grease disclosed by the invention is subjected to performance detection according to corresponding national standards by adopting the following equipment, and the main technical indexes are as follows:
the detection device comprises: a grease oxidation stability tester (SYP 4112-II), a grease extreme pressure performance tester (four-ball machine), a grease penetration tester (SYP 4100-I), a grease shear tester (SYP 4106-I), a grease seal performance tester, a grease dropping point tester (SYP-4110-I), a grease corrosion resistance tester (SYP 4109-I), a grease and lubricating oil evaporation loss tester (BF-60), a grease similar viscosity tester (SYP 4101-I) and the like.
The main technical indexes are as follows:
1. cone penetration of grease: 265-295, unit 0.1 mm.
2. Evaporation amount of grease (99 ℃,22 h)%: is less than 2 percent.
3. Steel mesh oil separation (100 ℃,24 h), percent: is less than 5 percent.
4. Compatibility test with fluororubber and nitrile rubber (100 ℃,70 h),%: the volume and mass change is not more than 10%.
The present invention has been described in further detail with reference to the specific embodiments, which should not be construed as limiting the invention; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.

Claims (5)

1. The valve actuator lubricating grease is characterized by being prepared from the following raw materials in parts by mass:
28-42 parts of 300# paraffin oil
58-72 parts of poly-alpha olefin synthetic base oil
15-23 parts of XY-200 oily thickener
3-7 parts of T361A antiwear extreme pressure additive
3-6 parts of L57 antioxidant
3-5 parts of ABS8434 resin
2-4 parts of polytetrafluoroethylene
2-5 parts of dodecahydroxystearic acid
2-4 parts of stearic acid
1-3 parts of lithium hydroxide
1-3 parts of diphenylamine
1-2 parts of sebacic acid
1-2 parts of oxidation and corrosion inhibitor T202
1-2 parts of antirust agent T706.
2. The valve actuator grease of claim 1 wherein: the types of the polyalphaolefin synthetic base oil are PAO8 and PAO150, wherein the PAO8 accounts for 26-48 parts, and the balance is PAO150.
3. The valve actuator grease of claim 2, prepared from raw materials comprising, in parts by mass:
32-38 parts of 300# paraffin oil
34-42 parts of PAO8 poly-alpha olefin synthetic base oil
22-32 parts of PAO150 poly-alpha olefin synthetic base oil
18-20 parts of XY-200 oily thickener
4-5 parts of T361A antiwear extreme pressure additive
4-5 parts of L57 antioxidant
3.5-4.5 parts of ABS8434 resin
2.5 to 3.5 portions of polytetrafluoroethylene
3-4 parts of dodecahydroxystearic acid
Stearic acid 2.5-3.5 parts
1.5-2.5 parts of lithium hydroxide
1.5-2.5 parts of diphenylamine
1.2 to 1.6 portions of sebacic acid
1 to 1.5 portions of oxidation and corrosion inhibitor T202
1.2-1.5 parts of antirust agent T706.
4. A valve actuator grease according to claim 3 wherein: the penetration of the valve actuator lubricating grease is 265-295, the evaporation capacity of the lubricating grease at 99 ℃ for 22h is less than 2%, the oil distribution of a steel mesh at 100 ℃ for 24h is less than 5%, and the volume and mass change of the lubricating grease at 100 ℃ for 70h in a fluororubber and nitrile rubber compatibility test is not more than 10%.
5. A method of preparing a valve actuator grease according to any one of claims 1 to 3 comprising the steps of:
1) Adding XY-200 oily thickener into 1/2 polyalphaolefin synthetic base oil according to the proportion, uniformly mixing in a blending kettle, stirring, slowly heating to 150-180 ℃, and then preserving heat for 1.5-2h;
2) Adding 300# paraffin oil, dodecahydroxystearic acid, stearic acid and sebacic acid, stirring uniformly, heating to 200-230 ℃, then preserving heat for 1-1.5h, and stopping heating after the heat preservation time;
3) Adding 1/2 of poly-alpha-olefin synthetic base oil again, stirring uniformly, quenching the mixture, and homogenizing the mixture by a homogenizer to obtain base ester;
4) Adding a T361A anti-wear extreme pressure additive, an L57 antioxidant, ABS8434 resin, polytetrafluoroethylene, lithium hydroxide, diphenylamine, an antioxidant and corrosion inhibitor T202 and an antirust agent T706 into the obtained base grease, homogenizing by a homogenizer, and filtering by a high-pressure filter to obtain the valve actuator lubricating grease.
CN202211197610.6A 2022-09-29 2022-09-29 Valve actuator lubricating grease and preparation method thereof Pending CN115521818A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN109563429A (en) * 2016-08-08 2019-04-02 Nok克鲁勃株式会社 Lubricant composition
CN110669577A (en) * 2019-10-17 2020-01-10 西安玛珂特新材料科技股份有限公司 Special grease for petroleum equipment and synthetic method thereof

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Publication number Priority date Publication date Assignee Title
JP2001089778A (en) * 1999-09-24 2001-04-03 Kyodo Yushi Co Ltd Grease composition for resin
CN1771316A (en) * 2003-03-11 2006-05-10 日本精工株式会社 Grease composition for resin lubrication and electrically operated power steering unit
CN102112590A (en) * 2008-07-07 2011-06-29 国际壳牌研究有限公司 Grease composition
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115960659A (en) * 2022-12-30 2023-04-14 无锡飞天润滑油科技股份有限公司 Biodegradable lubricating grease and preparation method thereof

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