CN111662767B - Sizing machine lubricating grease and preparation method thereof - Google Patents

Sizing machine lubricating grease and preparation method thereof Download PDF

Info

Publication number
CN111662767B
CN111662767B CN202010536583.5A CN202010536583A CN111662767B CN 111662767 B CN111662767 B CN 111662767B CN 202010536583 A CN202010536583 A CN 202010536583A CN 111662767 B CN111662767 B CN 111662767B
Authority
CN
China
Prior art keywords
grease
base oil
sizing
mixing
calcium
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.)
Active
Application number
CN202010536583.5A
Other languages
Chinese (zh)
Other versions
CN111662767A (en
Inventor
王佳
刘鹏
王明伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Haihua Technology Co ltd
Original Assignee
Liaoning Haihua Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liaoning Haihua Technology Co ltd filed Critical Liaoning Haihua Technology Co ltd
Priority to CN202010536583.5A priority Critical patent/CN111662767B/en
Publication of CN111662767A publication Critical patent/CN111662767A/en
Application granted granted Critical
Publication of CN111662767B publication Critical patent/CN111662767B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • 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
    • C10M2203/106—Naphthenic fractions
    • C10M2203/1065—Naphthenic 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
    • C10M2205/026—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
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/223—Five-membered rings containing nitrogen and carbon only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/046—Overbasedsulfonic acid salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/106—Thiadiazoles
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • 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
    • C10M2223/043—Ammonium or amine salts thereof
    • 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

Landscapes

  • 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 provides a sizing machine lubricating grease and a preparation method thereof. The width sizing machine lubricating grease comprises the following raw materials in percentage by mass: 18-56.45% of base oil, 30-40% of ultrahigh base number calcium sulfonate, 10-20% of tackifier, 0.5-5% of transforming agent, 1-3.5% of organic acid, 0.5-3% of antioxidant, 0.05-0.5% of passivator, 0.5-5% of extreme pressure antiwear additive and 1-5% of antirust; the base oil includes naphthenic base oil and bright stock. The lubricating grease has better performance in the aspects of water resistance, adhesiveness, rust resistance, filterability and the like, particularly has good adhesive property and extreme pressure property after being soaked in water, and is particularly suitable for lubrication under the working conditions of wateriness, heavy load, impact and high temperature.

Description

Sizing machine lubricating grease and preparation method thereof
Technical Field
The invention belongs to the technical field of lubricating grease, and particularly relates to sizing machine lubricating grease and a preparation method thereof.
Background
The width control of the hot-rolled plate blank is subjected to the lateral pressure of a large vertical roll and the combined lateral pressure of the large vertical roll and four rolls, and a brand-new plate blank fixed-width press is developed. The fixed-width press applies pressure on the side surface of the plate blank so as to achieve the purpose of controlling the width of the plate blank. Compared with the vertical roller width adjustment, the width adjustment of the press machine has obvious advantages that the control is accurate, the width adjustment efficiency can be well obtained, and the hot charging rate and the hot charging temperature of the plate blank are improved, so that the yield is improved. The sizing press is positioned in front of a roughing mill behind a descaler and is continuously under the working conditions of heavy load, impact load, sliding friction, moisture and high temperature for a long time, so that the sizing press has strict requirements on lubricating grease products and has good water resistance, adhesion, rust resistance and excellent filtering performance.
CN109401819A discloses a low-temperature lubricating grease and a preparation method thereof, wherein the low-temperature lubricating grease comprises the following components in percentage by weight: 26-66.1% of base oil, 30-50% of ultrahigh-base-number calcium alkylbenzene sulfonate, 0.5-5% of transforming agent, 0.35-2.5% of calcium hydroxide, 1-5% of organic acid, 0.5-3% of antioxidant, 0.05-0.5% of passivating agent, 0.5-3% of extreme pressure antiwear agent and 0.5-2% of antiwear agent. The invention uses poly-alpha-olefin (PAO) synthetic oil of group IV base oil, which can be applied to the lubrication of rolling bearings and sliding bearings in low temperature environment, but can not ensure that the good consistency can be maintained in high temperature environment.
CN106497641A discloses a modified lubricating grease composition and a preparation method thereof. The composition comprises the following components by the total weight of 100 percent: 20-50% of high-base-number synthetic calcium sulfonate, 45-75% of base oil, 0.1-2% of transforming agent, 0.1-3% of glacial acetic acid, 1-3% of calcium hydroxide, 0.1-5% of composite acid and 1-4% of additive. The invention improves the compound calcium sulfonate base grease by improving the types and contents of the transforming agent and the complexing agent required in the preparation process and the preparation process thereof, thereby increasing the mechanical stability of the lubricating grease, but the effective transformation rate of the petroleum calcium sulfonate raw material is lower, and the extreme pressure property, the water resistance, the shear stability, the protective performance and the like of the product are influenced.
Therefore, it is necessary to develop a grease having excellent water resistance, adhesion, extreme pressure wear resistance and filterability at the same time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a sizing machine lubricating grease and a preparation method thereof. The lubricating grease has better performances in the aspects of water resistance, adhesiveness, rust resistance, filterability (good filterability, less impurities, correspondingly improved lubricity) and the like, and particularly has good adhesive performance and extreme pressure performance after being soaked in water. The lubricating device is particularly suitable for lubricating equipment under the working conditions of much water, heavy load, impact and high temperature.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the preparation raw materials of the sizing machine grease comprise, by mass: 18-56.45% of base oil, 30-40% of ultrahigh base number calcium sulfonate, 10-20% of tackifier, 0.5-5% of transforming agent, 1-3.5% of organic acid, 0.5-3% of antioxidant, 0.05-0.5% of passivating agent, 0.5-5% of extreme pressure antiwear agent and 1-5% of antirust agent;
the base oil includes naphthenic base oil and bright stock.
The lubricating grease is prepared by reasonably proportioning the base oil, the ultrahigh-base-number calcium sulfonate, the tackifier, the converting agent and the organic acid and refining by a specific process, has good high-temperature resistance, adhesiveness, extreme-pressure abrasion resistance, water resistance and filterability, has good adhesiveness after being soaked in water, and is particularly suitable for lubricating low-speed, heavy-load or impact load bearings; meanwhile, the lubricating grease can also effectively solve the problem that the common calcium sulfonate-based lubricating grease is dried seriously when meeting water, so that the lubricating grease enters a friction surface in time, and the effective lubrication is ensured; the problem of loss of the lubricating grease under high-pressure water direct injection is solved, and the oil supplementing period is prolonged; the rust resistance of the lubricating grease in a humid environment is improved.
The content of the base oil is 18 to 56.45%, for example, 18%, 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 56.45% or the like, based on 100% by mass of the total raw materials for preparing the sizing machine grease.
The content of the ultrahigh-base-number calcium sulfonate is 30 to 40%, for example, 30%, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, or the like, based on 100% by mass of the total raw materials for preparing the sizing machine grease.
The content of the thickener is 10 to 20%, for example, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, etc., based on 100% by mass of the total raw materials for preparing the sizing machine grease,
the content of the conversion agent is 0.5 to 5%, for example, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, etc., based on 100% by mass of the total raw materials for preparing the sizing machine grease.
The organic acid content may be 1 to 3.5%, for example, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, or the like, based on 100% by mass of the total raw material for preparing the sizing machine grease.
The antioxidant content is 0.5 to 3%, for example, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, etc., based on 100% by mass of the total raw material for preparing the sizing machine grease.
The content of the deactivator may be 0.05 to 0.5%, for example, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, or the like, based on 100% by mass of the total raw materials for preparing the sizing machine grease.
The content of the extreme pressure anti-wear agent is 0.5-5% by mass of the total mass of the preparation raw materials of the sizing machine grease lubricant, and can be, for example, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% and the like.
The content of the rust inhibitor is 1 to 5%, for example, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, etc., based on 100% by mass of the total raw materials for preparing the sizing machine grease.
Preferably, the kinematic viscosity of the base oil at 40 ℃ is 580-700mm 2 S, for example 580mm 2 /s、600mm 2 /s、620mm 2 /s、640mm 2 /s、660mm 2 /s、680mm 2 /s、700mm 2 And/s, etc.
Preferably, the base oil has a naphthenic base oil to bright stock ratio of (1-9: 1) by mass, and may be, for example, 1:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, etc.
Preferably, the kinematic viscosity of the naphthenic base oil at 40 ℃ is 680-720mm 2 S (which may be 680mm for example) 2 /s、690mm 2 /s、700mm 2 /s、710mm 2 /s、720mm 2 S, etc.), a viscosity index of 20-30 (e.g., can be 20, 22, 24, 26, 28, 30, etc.), a flash point of 190-.
Under the above conditions, the color of the product of the naphthenic base oil does not turn white after meeting water, and the oil film is thicker. The reason is that the high viscosity naphthenic base oil has a large viscosity-pressure coefficient and has a higher viscosity at the same pressure, thereby providing a thicker oil film.
Preferably, the naphthenic base oil is naphthenic base oil BBT 28.
Preferably, the kinematic viscosity of the bright stock at 40 ℃ is 460-520mm 2 S (which may be 460mm for example) 2 /s、470mm 2 /s、480mm 2 /s、490mm 2 /s、500mm 2 /s、510mm 2 /s、520mm 2 And/s), a viscosity index of 80 to 110 (e.g., 80, 90, 100, 110, etc.), a flash point of 290 ℃ to 300 ℃ (e.g., 290 ℃, 292 ℃, 294 ℃, 296 ℃, 298 ℃, 300 ℃, etc.), and a pour point of-6 ℃.
Preferably, the bright stock is bright stock 150 BS.
Preferably, the ultra-high base number calcium sulfonate includes calcium carbonate, calcium alkylbenzene sulfonate, and base oil.
Preferably, the ultra-high base number calcium sulfonate includes calcium carbonate, calcium alkylbenzene sulfonate, and base oil. The ultrahigh-base-number calcium sulfonate is ultrahigh-base-number calcium alkylbenzene sulfonate and comprises three components: calcium carbonate, calcium alkyl benzene sulfonate and base oil. The ultrahigh base number calcium sulfonate is a stable and transparent micelle structure, wherein amorphous calcium carbonate (alkaline) is wrapped by calcium sulfonate (neutral) to form micelles, and the micelles are dispersed in base oil. Because of the existence of the conversion agent, the polarity of active hydrogen (acidity) is strong, calcium sulfonate can gradually dissociate from the micelle to adsorb the conversion agent, so that the micelle is opened, calcium carbonate is dissociated from the micelle and is adsorbed together by contacting with water to form crystals with a specific shape and the crystals are dispersed in oil. After the calcium carbonate crystals are formed, other various high-low molecular calcium salts take the calcium carbonate crystals as centers and are adsorbed on the calcium carbonate crystals in a directional manner. The fluidity of the whole soap-oil system is reduced, and the base oil is thickened into lubricating grease.
Preferably, the mass ratio of the calcium carbonate to the calcium alkyl benzene sulfonate to the base oil is 27:45: 28.
Preferably, the kinematic viscosity of the calcium sulfonate with the ultrahigh base number at 100 ℃ is 150- 2 S, for example, may be 150mm 2 /s、160mm 2 /s、170mm 2 /s、180mm 2 /s、190mm 2 /s、200mm 2 /s、210mm 2 /s、220mm 2 /s、230mm 2 /s、240mm 2 /s、250mm 2 And/s, etc.
Preferably, the Total Base Number (TBN) of the ultrahigh-base-number calcium sulfonate is 380-420mgKOH/g, and may be 380mgKOH/g, 390mgKOH/g, 400mgKOH/g, 410mgKOH/g, 420mgKOH/g, etc.
Preferably, the ultrahigh base number calcium sulfonate has a Direct Base Number (DBN) of 30 to 100 mgKOH/g; for example, it may be 30mgKOH/g, 40mgKOH/g, 50mgKOH/g, 60mgKOH/g, 70mgKOH/g, 80mgKOH/g, 90mgKOH/g, 100mgKOH/g, etc.
Preferably, the alkyl carbon number of the calcium alkylbenzene sulfonate is C12-C24;
preferably, the calcium alkylbenzene sulfonate consists of calcium C12 alkylbenzene sulfonate, calcium C14-18 alkylbenzene sulfonate and calcium C24 alkylbenzene sulfonate;
preferably, the mass ratio of the C12 calcium alkyl benzene sulfonate, the C14-18 calcium alkyl benzene sulfonate and the C24 calcium alkyl benzene sulfonate is (1-2): (6.5-7.5): (1-2), wherein the first "1-2" can be 1, 1.5, 2, etc., the "6.5-7.5" can be 6.5, 7, 7.5, etc., and the third "1-2" can be 1, 1.5, 2, etc.
Preferably, the calcium content in the ultra-high base number calcium sulfonate is 15 wt% or more, and may be, for example, 15 wt%, 16 wt%, 17 wt%, 18 wt%, 19 wt%, 20 wt%, or the like.
Preferably, the content of sulfur in the ultra-high base number calcium sulfonate is 1.6 wt% or more, and may be, for example, 1.6 wt%, 1.7 wt%, 1.8 wt%, 1.9 wt%, 2 wt%, 2.1 wt%, 2.2 wt%, 2.3 wt%, 2.4 wt%, 2.5 wt%, or the like.
Preferably, the paraffinic base oil comprises any one of 400SN, 350SN or 150N or at least refined combinations. The reason for selecting SN oil is that the solubility is good, so that the rubber column structure is more stable.
Preferably, the tackifier is highly reactive polyisobutylene.
Preferably, the high-activity polyisobutylene has a weight average molecular weight of 1300-2300, which may be 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000, 2100, 2200, 2300, for example.
Preferably, the conversion agent comprises a low molecular alcohol and/or a low molecular acid.
Preferably, the low molecular alcohols include methanol and/or ethanol.
Preferably, the low molecular acid comprises acetic acid.
Preferably, the organic acid is an organic acid having a carbon number of C8 or more, for example, the carbon number may be C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20.
Preferably, the organic acid comprises dodecahydroxystearic acid and/or azelaic acid.
Preferably, the antioxidant comprises nonyl diphenylamine and/or an ashless thiocarbamate, preferably a combination of nonyl diphenylamine and an ashless thiocarbamate (synergistic cooperation, improving the grease oxidation resistance).
Preferably, the passivating agent comprises a benzotriazole derivative and/or a thiadiazole derivative, preferably a combination of a benzotriazole derivative and a thiadiazole derivative.
Preferably, the extreme pressure antiwear agent comprises molybdenum dialkyl dithiophosphate and/or zinc dialkyl dithiophosphate, and preferably a combination of molybdenum dialkyl dithiophosphate and zinc dialkyl dithiophosphate (synergistic combination, small grinding spot and good extreme pressure antiwear effect).
Preferably, the antirust agent is 1,2, 3-benzotriazole. (generally dissolved with 6-40 times of sorbitan fatty acid ester).
In a second aspect, the present invention provides a preparation method of the sizing machine grease according to the first aspect, the preparation method comprising the following steps:
(1) mixing materials: mixing the ultrahigh-base-number calcium sulfonate with part of base oil to obtain a mixed material;
(2) and (3) transformation: mixing the mixed material obtained in the step (1) with a transforming agent, and heating and transforming to obtain a transforming substance;
(3) compounding: mixing the converted substance obtained in the step (2) with organic acid, and heating for reaction to obtain a composite converted substance;
(4) heating for reaction: dehydrating the composite converted substance obtained in the step (3), mixing with the residual base oil, heating and refining to obtain a high-temperature product of the lubricating grease;
(5) adding agent and homogenizing: and (4) mixing the high-temperature product of the lubricating grease obtained in the step (4) with the rest of other components, and homogenizing to obtain the lubricating grease of the sizing machine.
Preferably, the mass ratio of the part of the base oil in step (1) to the rest of the base oil in step (4) is (0.5-2: 1, and may be, for example, 0.5:1, 0.6:1, 0.8:1, 1:1, 1.2:1, 1.4:1, 1.6:1, 1.8:1, 2:1, etc., preferably 1: 1.
Preferably, the mixing temperature in step (1) is 20-50 deg.C, such as 20 deg.C, 25 deg.C, 30 deg.C, 35 deg.C, 40 deg.C, 45 deg.C, 50 deg.C, etc., and the mixing time is 15-30min, such as 15min, 16min, 18min, 20min, 22min, 24min, 26min, 28min, 30min, etc.
Preferably, the mixing temperature in step (2) is 20-50 deg.C, such as 20 deg.C, 25 deg.C, 30 deg.C, 35 deg.C, 40 deg.C, 45 deg.C, 50 deg.C etc.
Preferably, the transforming agent in the step (2) needs to be diluted by water and then mixed, and the mass ratio of the water to the diluent is (1-3) to 1, and can be 1:1, 1.5:1, 2:1, 2.5:1, 3:1 and the like.
Preferably, the temperature of the heat conversion in step (2) is 80-95 ℃, such as 80 ℃, 82 ℃, 84 ℃, 86 ℃, 88 ℃, 90 ℃, 92 ℃, 95 ℃ and the like, and the time of the heat conversion is 120-240min, such as 120min, 140min, 160min, 180min, 2000min, 220min, 240min and the like.
Preferably, the temperature of the heating reaction in step (3) is 90-100 ℃, such as 90 ℃, 92 ℃, 94 ℃, 96 ℃, 98 ℃,100 ℃ and the like, and the time of the heating reaction is 30-60min, such as 30min, 35min, 40min, 45min, 50min, 55min, 60min and the like.
Preferably, the dehydration temperature in step (4) is 130-140 ℃, such as 130 ℃, 132 ℃, 134 ℃, 136 ℃, 138 ℃, 140 ℃ and the like.
Preferably, the temperature for the heating refining in step (4) is 150-.
Preferably, the mixing temperature in step (5) is 90-110 deg.C, such as 90 deg.C, 92 deg.C, 94 deg.C, 96 deg.C, 98 deg.C, 100 deg.C, 102 deg.C, 104 deg.C, 106 deg.C, 108 deg.C, 110 deg.C etc.
Preferably, the homogenization treatment of step (5) is performed by a homogenizer and a filter.
Preferably, the homogenization treatment in step (5) has a filtration mesh number of 100-200 meshes, such as 100 meshes, 120 meshes, 140 meshes, 160 meshes, 180 meshes, 200 meshes.
Preferably, the step (5) of adding the agent for homogenization further comprises the step (6) of degassing and packaging: transferring the lubricating grease obtained in the step (5) to a degassing kettle for degassing, filtering and packaging.
Preferably, the preparation method comprises the following steps:
(1) mixing materials: mixing the ultrahigh-base-number calcium sulfonate and part of base oil at 20-50 ℃ for 15-30min to obtain a mixed material;
(2) and (3) transformation: mixing the mixed material obtained in the step (1) with a transforming agent at 20-50 ℃, heating to 80-95 ℃, and preserving heat for 120-240min to obtain a transforming substance;
(3) compounding: mixing the converted substance obtained in the step (2) with organic acid, heating to 90-100 ℃ and reacting for 30-60min to obtain a composite converted substance;
(4) heating for reaction: heating the composite conversion substance obtained in the step (3) to 130-140 ℃ for dehydration, mixing the dehydrated composite conversion substance with the residual base oil, heating the mixture to 150-180 ℃ for reaction for 10-30min to obtain a lubricating grease high-temperature product;
(5) adding agent and homogenizing: cooling the lubricating grease high-temperature product obtained in the step (4) to 90-110 ℃, mixing the lubricating grease high-temperature product with a tackifier, an antioxidant, a passivator, an extreme pressure antiwear agent and an antirust agent, and homogenizing by a homogenizer and a filter for 60-120min to obtain lubricating grease with the particle size of 100 plus 200 meshes;
(6) degassing and packaging: transferring the lubricating grease obtained in the step (5) to a degassing kettle for degassing, filtering and packaging.
Compared with the prior art, the invention has the following beneficial effects:
(1) the lubricating grease disclosed by the invention has better performances in the aspects of high temperature resistance, adhesion, extreme pressure abrasion resistance, water resistance, filterability and the like. The lubricating grease has good adhesion particularly after being soaked in water, and is particularly suitable for lubricating bearings with low speed, heavy load or impact load. The product is sticky, and can be used for lubricating an open type manual greasing part.
(2) The kinematic viscosity of the lubricating grease base oil of the sizing machine is 122.5-1966.84mm at 40 DEG C 2 The kinematic viscosity at 100 ℃ is 13.62-67.70mm 2 The viscosity index is 22-107, the working cone penetration is 300-380 ℃, the dropping point is 215-330 ℃, the oil distribution is 2.8-7.1%, the corrosion resistance is qualified, the copper sheet has no black or green change in corrosion, the difference between the working cone penetration and the working cone penetration is 4-16, the water leaching loss is 1-4%, the sintering load is 3089-4900N, and the abrasion spot diameter is 0.43-0.53 mm.
Drawings
FIG. 1 is a Fourier transform infrared spectrogram of the constant-width machine grease prepared by the invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
The sources of the components in the following examples are as follows: naphthenic base oil (brand: BBT28), bright stock (brand: 150BS), polyisobutylene (brand: PIB1300, PIB2400), benzotriazole derivative (brand: P7001), thiadiazole derivative (brand: T561);
the ultra-high base number calcium sulfonate provided in examples 1-8 below: the ultrahigh-base-number calcium sulfonate comprises the following components in percentage by mass, based on 100% of the mass of the ultrahigh-base-number calcium sulfonate: 27% of calcium carbonate, 45% of calcium alkyl benzene sulfonate and paraffin base oil 400SN 28%; with the alkylbenzene sulfonic acid calcium sulfonateIn an amount of 100%, the calcium alkyl benzene sulfonate is 15% of C12 calcium alkyl benzene sulfonate, 70% of C15 calcium alkyl benzene sulfonate and 15% of C24 calcium alkyl benzene sulfonate; the ultrahigh base number calcium sulfonate has a kinematic viscosity of 200mm at 100 DEG C 2 (s), the total base number is 400mgKOH/g, the content of calcium is 15 wt%, and the content of sulfur is more than 1.6 wt%.
FIG. 1 Fourier transform infrared spectrum of constant width lubricating grease prepared in example 1. From the figure, the infrared characteristic peak of the fixed-width lubricating grease is 880-885cm -1 。
Example 1
The embodiment provides sizing machine lubricating grease, which comprises the following preparation raw materials in percentage by mass: 31.9% of base oil (naphthenic base oil BBT 2827% and bright stock oil 150BS 4.9%), 35% of ultrahigh base number calcium sulfonate, 17.5% of polyisobutene, 5% of methanol, 4% of dodecahydroxystearic acid, 0.5% of ashless thiocarbamate, 0.1% of benzotriazole derivative, 1.5% of molybdenum dialkyl dithiophosphate, 1.5% of zinc dialkyl dithiophosphate and 3% of 1,2, 3-benzotriazole.
The preparation method of the sizing machine lubricating grease comprises the following steps:
(1) mixing materials: mixing the ultrahigh-base-number calcium sulfonate and 16% of base oil at 30 ℃ for 20min to obtain a mixed material;
(2) and (3) transformation: mixing the mixed material obtained in the step (1) with methanol at 30 ℃, heating to 90 ℃, and keeping the temperature for 180min to obtain a converted substance;
(3) compounding: mixing the converted substance obtained in the step (2) with dodecahydroxystearic acid, heating to 95 ℃ and reacting for 60min to obtain a composite converted substance;
(4) and (3) heating reaction: mixing the composite converted substance obtained in the step (3) with the rest 15.9% of base oil, heating to 135 ℃ for dehydration, heating to 175 ℃ for reaction for 30min to obtain a high-temperature product of lubricating grease;
(5) adding an agent for homogenization: cooling the high-temperature product of the lubricating grease obtained in the step (4) to 100 ℃, mixing the high-temperature product of the lubricating grease with polyisobutylene, ashless thiocarbamate, benzotriazole derivatives, molybdenum dialkyl dithiophosphate, zinc dialkyl dithiophosphate and 1,2, 3-benzotriazole, and homogenizing the mixture by a homogenizer and a filter for 120min to obtain the lubricating grease with the granularity of 400 meshes;
(6) degassing and packaging: transferring the lubricating grease obtained in the step (5) to a degassing kettle for degassing, filtering and packaging.
Example 2
The embodiment provides sizing machine lubricating grease, which comprises the following preparation raw materials in percentage by mass: 35.6% of base oil (naphthenic base oil BBT 2830% and bright stock oil 150BS 5.6%), 35% of ultrahigh base number calcium sulfonate, 14.1% of polyisobutylene, 2% of methanol, 2.5% of acetic acid, 3.5% of azelaic acid, 2% of diphenylamine, 0.3% of thiadiazole derivative, 1% of molybdenum dialkyl dithiophosphate, 2% of phosphate ammonium salt, 1% of zinc dialkyl dithiophosphate and 1% of 1,2, 3-benzotriazole.
The preparation method of the sizing machine lubricating grease comprises the following steps:
(1) mixing materials: mixing the ultrahigh-base-number calcium sulfonate and 17.8% base oil at 30 ℃ for 20min to obtain a mixed material;
(2) and (3) transformation: mixing the mixed material obtained in the step (1) with methanol and acetic acid at 30 ℃, heating to 90 ℃, and keeping the temperature for 200min to obtain a converted substance;
(3) compounding: mixing the converted substance obtained in the step (2) with azelaic acid, heating to 95 ℃ and reacting for 55min to obtain a composite converted substance;
(4) heating for reaction: mixing the composite converted substance obtained in the step (3) with the residual 17.8% of base oil, heating to 135 ℃ for dehydration, heating to 180 ℃ for reaction for 25min, and obtaining a high-temperature product of lubricating grease;
(5) adding an agent for homogenization: cooling the high-temperature product of the lubricating grease obtained in the step (4) to 100 ℃, mixing the high-temperature product of the lubricating grease with polyisobutylene, diphenylamine, thiadiazole derivatives, molybdenum dialkyl dithiophosphate, phosphate ammonium salt, zinc dialkyl dithiophosphate and 1,2, 3-benzotriazole, and homogenizing the mixture for 90min by a homogenizer and a filter to obtain 200-mesh constant-width machine lubricating grease;
(6) degassing and filling: transferring the lubricating grease of the sizing machine obtained in the step (5) to a degassing kettle for degassing, filtering and filling.
Example 3
The embodiment provides sizing machine lubricating grease, which comprises the following preparation raw materials in percentage by mass: 34.6 percent of base oil (naphthenic base oil BBT 2828 percent and bright stock oil 150BS 6.6 percent), 38 percent of calcium sulfonate with ultrahigh base number, 13.5 percent of polyisobutylene, 3 percent of ethanol, 1.5 percent of dodecahydroxy stearic acid, 0.5 percent of diphenylamine, 0.5 percent of nonyldiphenylamine, 0.4 percent of benzotriazole derivative, 0.5 percent of molybdenum dialkyl dithiophosphate, 3 percent of phosphate ammonium salt, 0.5 percent of zinc dialkyl dithiophosphate and 4 percent of 1,2, 3-benzotriazole.
The preparation method of the sizing machine lubricating grease comprises the following steps:
(1) mixing materials: mixing the ultrahigh-base-number calcium sulfonate and 17.3% of base oil at 30 ℃ for 20min to obtain a mixed material;
(2) and (3) transformation: mixing the mixed material obtained in the step (1) with ethanol at 30 ℃, heating to 90 ℃, and keeping the temperature for 65min to obtain a converted substance;
(3) compounding: mixing the converted substance obtained in the step (2) with calcium hydroxide and dodecahydroxystearic acid, heating to 95 ℃ and reacting for 45min to obtain a composite converted substance;
(4) heating for reaction: mixing the composite converted substance obtained in the step (3) with the residual 17.3% of base oil, heating to 135 ℃ for dehydration, heating to 180 ℃ for reaction for 20min, and obtaining a high-temperature product of lubricating grease;
(5) adding agent and homogenizing: cooling the high-temperature product of the lubricating grease obtained in the step (4) to 100 ℃, mixing the high-temperature product of the lubricating grease with polyisobutylene, diphenylamine, nonyldiphenylamine, benzotriazole derivatives, molybdenum dialkyl dithiophosphate, ammonium phosphate, zinc dialkyl dithiophosphate and 1,2, 3-benzotriazole, and homogenizing by a homogenizer and a filter for 60min to obtain 100-mesh constant-width machine lubricating grease;
(6) degassing and filling: transferring the lubricating grease of the width fixing machine obtained in the step (5) to a degassing kettle for degassing, filtering and filling.
Example 4
The embodiment provides sizing machine lubricating grease, which comprises the following preparation raw materials in percentage by mass: 39.6% of base oil (naphthenic base oil BBT 2835% and bright stock oil 150BS 4.6%), 35% of ultrahigh base number calcium sulfonate, 11.2% of polyisobutylene, 2% of ethanol, 2% of acetic acid, 2% of azelaic acid, 1.5% of diphenylamine, 1.5% of ashless thiocarbamate, 0.2% of thiadiazole derivative, 1% of dialkyl molybdenum dithiophosphate, 2% of phosphate ammonium salt and 2% of 1,2, 3-benzotriazole.
The preparation method of the sizing machine lubricating grease comprises the following steps:
(1) mixing materials: mixing the ultrahigh-base-number calcium sulfonate and 19.8% of base oil at 30 ℃ for 20min to obtain a mixed material;
(2) and (3) transformation: mixing the mixed material obtained in the step (1) with ethanol at 30 ℃, heating to 90 ℃, and keeping the temperature for 40min to obtain a converted substance;
(3) compounding: mixing the converted substance obtained in the step (2) with dodecahydroxystearic acid, heating to 95 ℃ and reacting for 35min to obtain a composite converted substance;
(4) heating for reaction: mixing the composite converted substance obtained in the step (3) with the residual 19.8% of base oil, heating to 135 ℃ for dehydration, heating to 180 ℃ for reaction for 13min to obtain saponified oil;
(5) adding agent and homogenizing: cooling the saponified oil obtained in the step (4) to 100 ℃, mixing the cooled saponified oil with polyisobutylene, diphenylamine, nonyldiphenylamine, benzotriazole derivatives, molybdenum dialkyl dithiophosphate, ammonium phosphate, zinc dialkyl dithiophosphate and 1,2, 3-benzotriazole, and homogenizing the mixture for 30min by a homogenizer and a filter to obtain 200-mesh constant-width machine lubricating grease;
(6) degassing and filling: transferring the lubricating grease of the width fixing machine obtained in the step (5) to a degassing kettle for degassing, filtering and filling.
Example 5
This example provides a sizing mill grease, which is different from example 1 only in that the content of the naphthenic base oil BBT28 is 10%, the content of the bright stock 150BS is 21.9%, and the contents of other components and the preparation method are the same as example 1.
Example 6
This example provides a grease for sizing machine, which is different from example 1 only in that the content of bright stock 150BS is 30%, the content of naphthenic base oil BBT28 is 1.9%, and the contents of other components and the preparation method are the same as example 1.
Example 7
This example provides a sizing grease, which is different from example 1 only in that the naphthenic base oil BBT28 is replaced by naphthenic base oil KN4010, and the contents of other components and the preparation method are the same as example 1.
Example 8
This example provides a constant-width grease, which is different from example 1 only in that the naphthenic base oil BBT28 is replaced by naphthenic base oil 150SN, and the contents of other components and the preparation method are the same as example 1.
Example 9
This example provides a sizing grease, which differs from example 1 only in that the kinematic viscosity of the calcium sulfonate with an ultrahigh base number at 100 ℃ is 350mm 2 The contents of other components and the preparation method are the same as in example 1.
Example 10
This example provides a sizing mill grease, which is different from example 1 only in that the total base number of the ultrahigh-base-number calcium sulfonate is 300mgKOH/g, and the contents of other components and the preparation method are the same as those of example 1.
Example 11
This example provides a sizing mill grease, which is different from example 1 only in that the total base number of the ultrahigh-base-number calcium sulfonate is 500mgKOH/g, and the contents of other components and the preparation method are the same as those of example 1.
Example 12
This example provides a sizing grease, which is different from example 1 only in that the time for heat conversion in step (2) is 90min, the content of grease components and other preparation methods are the same as example 1.
Example 13
This example provides a sizing grease, which is different from example 1 only in that the time for heat conversion in step (2) is 250min, the content of grease components and other preparation methods are the same as example 1.
Example 14
This example provides a grease for sizing machine, which is different from example 1 only in that the homogenization treatment in step (5) yields grease of 50 mesh, the content of grease components and other preparation methods are the same as those of example 1.
Example 15
This example provides a grease for sizing machine, which is different from example 1 only in that the grease of 250 mesh is obtained by the homogenization treatment in step (5), the content of the grease components and other preparation methods are the same as those of example 1.
Comparative example 1
This comparative example provides a sizing grease which differs from example 1 only in that 31.9% of the base oil is replaced with 31.9% of the polyalphaolefin PAO4, and the contents of other components and the preparation method are the same as in example 1.
Comparative example 2
This comparative example provides a sizing grease which differs from example 1 only in that 4.9% bright stock 150BS is replaced by 4.9% polyalphaolefin PAO4, and the other component contents and preparation method are the same as example 1.
Comparative example 3
This comparative example provides a sizing grease which differs from example 1 only in that 27% of the naphthenic base oil BBT28 is replaced by 27% of the polyalphaolefin PAO4, and the contents of other components and the preparation method are the same as in example 1.
Comparative example 4
This comparative example provides a sizing mill grease which differs from example 1 only in that the base oil is added in an amount of 10% (bright stock 150BS 1% and naphthenic base oil BBT 289%), the calcium sulfonate with ultrahigh base number is added in an amount of 56.9%, and the contents of other components and the preparation method are the same as example 1. The sizing machine grease provided by the embodiment cannot meet the requirements of thickening and hardening equipment after conversion thickening due to too large amount of thickening agent, and the equipment is forced to damage.
Comparative example 5
This comparative example provides a sizing mill grease which differs from example 1 only in that the base oil is added in an amount of 56.9% (bright stock 150BS 5% and naphthenic base oil BBT 2851.9%), the calcium sulfonate with an ultra-high base number is added in an amount of 10%, and the contents of other components and the preparation method are the same as example 1.
Performance testing
The properties of the sizing machine greases provided in examples 1 to 15 and the sizing machine greases provided in comparative examples 1 to 5 were tested, and the specific test items included the viscosity (kinematic viscosity at 40 ℃ V) 40 Kinematic viscosity V at 100 deg.C 100 Viscosity index VI), working cone penetration/0.1 mm, dropping point/DEG C, steel mesh oil (100 ℃,24h) (mass fraction)/%, corrosion (T) 2 Copper sheet, 100 ℃,24h), corrosion resistance (52 ℃,48h, distilled water), extension of working cone penetration (100000 times) and working cone penetration difference/(0.1 mm), water leaching loss (38 ℃,1h) (mass fraction)/%, sintering load (four-ball method) P D Abrasive grain diameter/mm,/N, abrasion resistance (four-ball method) (75 ℃,1200r/min,392N,60 min). The test methods and test results are shown in tables 1 and 2 ("-" indicates that the values were not detected):
TABLE 1
Figure BDA0002537263250000171
Figure BDA0002537263250000181
TABLE 2
Figure BDA0002537263250000182
As can be seen from the test data in tables 1 and 2, the kinematic viscosity of the sizing mill grease base oil of the present invention is 122.5 to 1966.84mm at 40 ℃ 2 The kinematic viscosity at 100 ℃ is 13.62-67.70mm 2 The viscosity index is 22-107, the working cone penetration is 300-The degree difference is 4-16, the water leaching loss is 1-4%, the sintering load is 3089-4900N, and the diameter of the grinding spot is 0.43-0.53 mm. The high-temperature-resistant lubricating oil has better performances in the aspects of high-temperature performance, shear stability, extreme pressure abrasion resistance, water resistance, filterability (good filterability, less impurities, corresponding improvement of lubricity) and the like. The lubricating grease has good shearing resistance particularly after being soaked in water, and is particularly suitable for lubricating bearings with low speed, heavy load or impact load. The product is sticky, and can be used for lubricating an open type manual greasing part.
It can be known from the comparison between example 1 and comparative example 1 that the lubricating grease prepared by using the IV base oil has a low viscosity of PAO4, so that the overall viscosity of the material system is reduced, the conversion effect of the ultrahigh-base-number calcium sulfonate is affected, an ideal calcium carbonate crystal form cannot be obtained, and the hydrophilicity of the lubricating grease is enhanced. And the poly-alpha-olefin molecular structure is regular, so that the thickening capability of the calcium sulfonate with the ultrahigh base number is reduced, and the consistency of the prepared lubricating grease is thinner, so that the working cone penetration change value, the water spray loss and the water-resistant spray value of a roller test 1/4 are larger, namely the water resistance is poor, and the consistency change is larger under a large amount of process water environments.
As can be seen from the comparison between the example 1 and the comparative examples 2 and 3, after any component of the base oil 1 or 2 is replaced by the IV base oil, the overall viscosity of the material system becomes low, the conversion effect of the calcium sulfonate with the ultrahigh base number is still influenced, and an ideal calcium carbonate crystal form cannot be obtained, so that the working cone penetration change value, the water spray loss and the water spray resistance value of the roller test 1/4 are large, namely the water resistance is poor, and the consistency change is large under a large amount of process water environments.
From the comparison between example 1 and comparative example 4, it is understood that when the amount of base oil is too small and the amount of calcium sulfonate having an ultrahigh base number is too large, the amount of thickening agent in the grease becomes too large, and the grease becomes thick and becomes hard after conversion, and the equipment is forcibly damaged.
As can be seen from the comparison between example 1 and comparative example 5, the addition amount of the base oil is too large, and the addition amount of the calcium sulfonate with an ultrahigh base number is too small, so that thickening is insufficient, and the prepared grease has a thin consistency, so that the water spray loss and the water spray resistance are large, and the extreme pressure wear resistance is reduced.
The applicant states that the present invention is illustrated by the above examples to the sizing machine grease and the preparation method thereof, but the present invention is not limited to the above examples, that is, the present invention is not meant to be implemented by relying on the above examples. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.

Claims (44)

1. The sizing machine lubricating grease is characterized in that the sizing machine lubricating grease comprises the following preparation raw materials in percentage by mass: 18-56.45% of base oil, 30-40% of ultrahigh base number calcium sulfonate, 10-20% of tackifier, 0.5-5% of transforming agent, 1-3.5% of organic acid, 0.5-3% of antioxidant, 0.05-0.5% of passivating agent, 0.5-5% of extreme pressure antiwear agent and 1-5% of antirust agent; the base oil consists of naphthenic base oil and bright stock;
the mass ratio of naphthenic base oil to bright stock in the base oil is (1-9) to 1;
the naphthenic base oil is naphthenic base oil BBT 28;
the bright stock is bright stock 150 BS;
the ultrahigh-base-number calcium sulfonate comprises calcium carbonate, calcium alkylbenzene sulfonate and paraffin-based base oil;
the preparation method of the sizing machine lubricating grease comprises the following steps:
(1) mixing materials: mixing the ultrahigh-base-number calcium sulfonate with part of base oil to obtain a mixed material;
(2) and (3) transformation: mixing the mixed material obtained in the step (1) with a transforming agent, and heating and transforming to obtain a transforming substance;
(3) compounding: mixing the converted substance obtained in the step (2) with organic acid, and heating for reaction to obtain a composite converted substance;
(4) heating for reaction: dehydrating the composite converted substance obtained in the step (3), mixing with the residual base oil, heating and refining to obtain a high-temperature product of the lubricating grease;
(5) adding agent and homogenizing: and (4) mixing the high-temperature product of the lubricating grease obtained in the step (4) with the rest of other components, and homogenizing to obtain the lubricating grease of the sizing machine.
2. The sizing machine grease as claimed in claim 1, wherein the kinematic viscosity of the base oil at 40 ℃ is 580-700mm 2 /s。
3. The sizing grease as recited in claim 1, wherein the naphthenic base oil has a kinematic viscosity of 680-720mm at 40 ℃ 2 The viscosity index is 20-30, the flash point is 190-230 ℃, and the pour point is-15 ℃.
4. The sizing machine grease as claimed in claim 1, wherein the kinematic viscosity of bright stock at 40 ℃ is 460-520mm 2 The viscosity index is 80-110, the flash point is 290-300 ℃, and the pour point is-6 ℃.
5. The sizing grease of claim 1, wherein the mass ratio of the calcium carbonate, the calcium alkylbenzene sulfonate and the paraffin-based base oil is 27:45: 28.
6. The sizing machine grease as claimed in claim 1, wherein the ultrahigh base number calcium sulfonate has a kinematic viscosity of 150-250mm at 100 ℃ 2 /s。
7. The sizing machine grease as claimed in claim 1, wherein the total base number of the ultrahigh-base-number calcium sulfonate is 380-420 mgKOH/g.
8. The sizing machine grease of claim 1, wherein the ultrahigh base number calcium sulfonate has a direct base number of 30 to 100 mgKOH/g.
9. The sizing grease as claimed in claim 1, wherein the alkyl carbon number of the calcium alkylbenzene sulfonate is from C12 to C24.
10. The fixed-width machine grease of claim 9, wherein the calcium alkylbenzene sulfonate consists of calcium C12 alkylbenzene sulfonate, calcium C14-18 alkylbenzene sulfonate and calcium C24 alkylbenzene sulfonate.
11. The sizing grease as claimed in claim 10, wherein the mass ratio of the C12 calcium alkylbenzene sulfonate, the C14-18 calcium alkylbenzene sulfonate and the C24 calcium alkylbenzene sulfonate is (1-2): (6.5-7.5): 1-2.
12. The sizing machine grease according to claim 1, wherein the calcium content in the ultrahigh-base-number calcium sulfonate is 15.0 wt% or more.
13. The sizing machine grease according to claim 1, wherein the content of sulfur in the ultra-high base number calcium sulfonate is 1.6 wt% or more.
14. The sizing grease of claim 1, wherein the paraffinic base oil comprises any one of 400SN, 350SN, or 150N, or a combination of at least two.
15. The sizing machine grease of claim 1 wherein the tackifier is a highly reactive polyisobutylene.
16. The sizing grease as recited in claim 15, wherein the number average molecular weight of the high-activity polyisobutylene is 1300-2300.
17. The sizing machine grease according to claim 1, wherein the conversion agent comprises a low molecular alcohol and/or a low molecular acid.
18. The sizing grease of claim 17, wherein the low molecular alcohol comprises methanol and/or ethanol.
19. The sizing mill grease of claim 17, wherein the low molecular acid is acetic acid.
20. The sizing mill grease as claimed in claim 1, wherein the organic acid is an organic acid having at least C8 carbon atoms.
21. Sizing grease according to claim 1, characterised in that the organic acid comprises dodecahydroxystearic acid and/or azelaic acid.
22. The sizing grease of claim 1 wherein the antioxidant comprises nonyldiphenylamine and/or ashless thiocarbamate.
23. The sizing grease of claim 22 wherein the antioxidant is a combination of nonyl diphenylamine and an ashless thiocarbamate.
24. Sizing mill grease according to claim 1, wherein the passivating agent comprises a benzotriazole derivative and/or a thiadiazole derivative.
25. The sizing mill grease of claim 24, wherein the passivating agent is a combination of a benzotriazole derivative and a thiadiazole derivative;
26. the sizing grease of claim 1 wherein the extreme pressure antiwear agent comprises molybdenum dialkyl dithiophosphate and/or zinc dialkyl dithiophosphate.
27. The sizing grease of claim 26, wherein the extreme pressure anti-wear agent is a combination of molybdenum dialkyl dithiophosphate and zinc dialkyl dithiophosphate.
28. The sizing machine grease as claimed in claim 1, wherein the rust inhibitor is 1,2, 3-benzotriazole.
29. Method for preparing a sizing machine grease according to any of claims 1-28, characterized in that it comprises the following steps:
(1) mixing materials: mixing the ultrahigh-base-number calcium sulfonate with part of base oil to obtain a mixed material;
(2) and (3) transformation: mixing the mixed material obtained in the step (1) with a transforming agent, and heating and transforming to obtain a transforming substance;
(3) compounding: mixing the converted substance obtained in the step (2) with organic acid, and heating for reaction to obtain a composite converted substance;
(4) heating for reaction: dehydrating the composite converted substance obtained in the step (3), mixing with the residual base oil, heating and refining to obtain a high-temperature product of the lubricating grease;
(5) adding agent and homogenizing: and (5) mixing the high-temperature lubricating grease product obtained in the step (4) with the rest of other components, and homogenizing to obtain the sizing machine lubricating grease.
30. The method according to claim 29, wherein the mass ratio of the part of the base oil of step (1) to the remaining base oil of step (4) is (0.5-2): 1.
31. The method according to claim 30, wherein the mass ratio of the part of the base oil of step (1) to the remaining base oil of step (4) is 1: 1.
32. The method of claim 29, wherein the mixing in step (1) is carried out at a temperature of 20 to 50 ℃ for a time of 15 to 30 min.
33. The method of claim 29, wherein the temperature of the mixing in step (2) is 20-50 ℃.
34. The preparation method according to claim 29, wherein the transforming agent in the step (2) is diluted by water and then mixed, and the mass ratio of the water to the transforming agent is (1-3): 1.
35. The method as claimed in claim 29, wherein the temperature of the heat-transferring in step (2) is 80-95 ℃, and the time of the heat-transferring is 120-240 min.
36. The method according to claim 29, wherein the temperature of the heating reaction in the step (3) is 90 to 100 ℃, and the time of the heating reaction is 30 to 60 min.
37. The method as claimed in claim 29, wherein the dehydration temperature in step (4) is 130-140 ℃.
38. The method as claimed in claim 29, wherein the temperature of the heating refining in step (4) is 150-175 ℃, and the time of the heating refining is 10-30 min.
39. The method of claim 29, wherein the temperature of the mixing in step (5) is 90-110 ℃.
40. The method of claim 29, wherein the homogenizing in step (5) is performed by a homogenizer and a filter.
41. The method as claimed in claim 29, wherein the homogenization treatment in step (5) has a filtration mesh size of 100-200 meshes.
42. The method of claim 29, wherein the time for the homogenization treatment in step (5) is 60-120 min.
43. The method of claim 29, wherein the step (5) of adding the agent for homogenization further comprises the step (6) of degassing and packaging: transferring the lubricating grease obtained in the step (5) to a degassing kettle for degassing, filtering and packaging.
44. The method of claim 29, comprising the steps of:
(1) mixing materials: mixing the ultrahigh-base-number calcium sulfonate and part of base oil at 20-50 ℃ for 15-30min to obtain a mixed material;
(2) and (3) transformation: mixing the mixed material obtained in the step (1) with a transforming agent at 20-50 ℃, heating to 80-95 ℃, and preserving heat for 120-240min to obtain a transforming substance;
(3) compounding: mixing the converted substance obtained in the step (2) with organic acid, heating to 90-100 ℃ and reacting for 30-60min to obtain a composite converted substance;
(4) heating for reaction: heating the composite converted substance obtained in the step (3) to 130-;
(5) adding agent and homogenizing: cooling the lubricating grease high-temperature product obtained in the step (4) to 90-110 ℃, mixing the lubricating grease high-temperature product with a tackifier, an antioxidant, a passivator, an extreme pressure anti-wear agent and a rust inhibitor, and performing homogenization treatment for 60-120min by using a homogenizer and a filter to obtain 100-mesh 200-mesh lubricating grease;
(6) degassing and packaging: transferring the lubricating grease obtained in the step (5) to a degassing kettle for degassing, filtering and packaging.
CN202010536583.5A 2020-06-12 2020-06-12 Sizing machine lubricating grease and preparation method thereof Active CN111662767B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010536583.5A CN111662767B (en) 2020-06-12 2020-06-12 Sizing machine lubricating grease and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010536583.5A CN111662767B (en) 2020-06-12 2020-06-12 Sizing machine lubricating grease and preparation method thereof

Publications (2)

Publication Number Publication Date
CN111662767A CN111662767A (en) 2020-09-15
CN111662767B true CN111662767B (en) 2022-09-13

Family

ID=72387466

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010536583.5A Active CN111662767B (en) 2020-06-12 2020-06-12 Sizing machine lubricating grease and preparation method thereof

Country Status (1)

Country Link
CN (1) CN111662767B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113214885B (en) * 2021-03-31 2022-07-26 中国铁道科学研究院集团有限公司金属及化学研究所 Lubricant for railway turnout and preparation method and application thereof
CN115820324B (en) * 2022-12-20 2024-01-26 辽宁海华科技股份有限公司 Special lubricating grease for ball mill and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101824357A (en) * 2010-05-27 2010-09-08 李墨菊 High-performance complex calcium sulfonate grease and preparation method thereof
CN102453599A (en) * 2010-10-22 2012-05-16 中国石油化工股份有限公司 Composite calcium-sulfonate-based tetrapolyurea lubricating grease and preparation method thereof
CN102453600A (en) * 2010-10-22 2012-05-16 中国石油化工股份有限公司 Composite calcium sulfonate-based hexaurea grease and preparation method thereof
CN109233947A (en) * 2018-09-05 2019-01-18 郑州市欧普士科技有限公司 A kind of novel papermaking machine special-purpose high temperature lubricating grease and preparation method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560489A (en) * 1983-09-14 1985-12-24 Witco Chemical Corporation High performance calcium borate modified overbased calcium sulfonate complex greases
CN100358984C (en) * 2005-08-05 2008-01-02 鞍山海华油脂化学有限公司 Composite calcium sulphonate lubricating grease
CN101153239B (en) * 2007-08-27 2010-12-01 无锡市高润杰化学有限公司 Method for producing compound sulphonic acid albany grease
CN101705143B (en) * 2009-11-09 2012-12-19 鞍山海华油脂化学有限公司 High-extreme pressure water-resistant antirust lubricating grease and preparation method thereof
CN102690716A (en) * 2011-03-25 2012-09-26 超美科技(深圳)有限公司 Multifunctional superstrong extreme pressure antiwear lubricating grease and preparation method thereof
SG11201401742YA (en) * 2011-10-31 2014-05-29 Nch Corp Calcium hydroxyapatite based calcium sulfonate grease compositions and method of manufacture
CN109401819A (en) * 2018-10-24 2019-03-01 辽宁海华科技股份有限公司 A kind of low form complex calcium sulfonate grease and preparation method thereof
CN109810760A (en) * 2019-01-30 2019-05-28 辽宁海华科技股份有限公司 A kind of round-the-clock complex calcium sulfonate grease and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101824357A (en) * 2010-05-27 2010-09-08 李墨菊 High-performance complex calcium sulfonate grease and preparation method thereof
CN102453599A (en) * 2010-10-22 2012-05-16 中国石油化工股份有限公司 Composite calcium-sulfonate-based tetrapolyurea lubricating grease and preparation method thereof
CN102453600A (en) * 2010-10-22 2012-05-16 中国石油化工股份有限公司 Composite calcium sulfonate-based hexaurea grease and preparation method thereof
CN109233947A (en) * 2018-09-05 2019-01-18 郑州市欧普士科技有限公司 A kind of novel papermaking machine special-purpose high temperature lubricating grease and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
150BS在锂基润滑脂中的研发与应用;李欣;《润滑油》;20170430;全文 *

Also Published As

Publication number Publication date
CN111662767A (en) 2020-09-15

Similar Documents

Publication Publication Date Title
CN111662767B (en) Sizing machine lubricating grease and preparation method thereof
CN102757842B (en) Ashless low-temperature hydraulic oil
DE112015002841B4 (en) Gearbox lubricating oil composition
CN102757841B (en) Ashless ultralow-temperature hydraulic oil
WO2006007934A1 (en) Use of graft polymers
CN115181599B (en) Low-temperature composite calcium sulfonate lubricating grease composition and preparation method thereof
CN103436329B (en) Elevator steel wire rope lubricating grease and preparation method thereof
JP2009533496A (en) Gear lubricant with base oil having low traction coefficient
WO2011102037A1 (en) Lubricant composition for continuously variable transmission
CN102690716A (en) Multifunctional superstrong extreme pressure antiwear lubricating grease and preparation method thereof
CN111892984B (en) Heavy-duty bearing lubricating grease composition and preparation method thereof
FR3013056A1 (en) PROCESS FOR THE PREPARATION OF A COMPLEX CALCIUM SULFONATE GREASE
CN105255568A (en) Roller press bearing grease compound
CN114752426B (en) Composite calcium sulfonate-based lubricating grease and preparation method thereof
CN106590814A (en) Preparation method of composite calcium sulfonate grease
CN102757843B (en) Ashless antiwear hydraulic oil
CN101892114B (en) Lubricating grease composition specially for centralized lubrication of vehicle chassis
CN113637515B (en) Low-noise composite calcium sulfonate-based lubricating grease composition and preparation method thereof
CN111607455B (en) Water-resistant calcium sulfonate-based lubricating grease and preparation method thereof
CN111944590B (en) Synthetic high-sintering load lubricating grease and preparation method and application thereof
CN114456870A (en) Environment-friendly lubricating oil and preparation method thereof
CN115710525B (en) Medium-base number composite calcium sulfonate lubricating grease composition and preparation method thereof
CN101235331A (en) Preparation of high-performance composite grease sulphonate lubricating grease
CN115806853B (en) High-quality environment-friendly aluminum rolling oil and preparation method thereof
CN112795422B (en) Lubricating grease 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
GR01 Patent grant
GR01 Patent grant