CN107474904A - A kind of antiwear hydraulic oil and preparation method thereof - Google Patents

A kind of antiwear hydraulic oil and preparation method thereof Download PDF

Info

Publication number
CN107474904A
CN107474904A CN201710747450.0A CN201710747450A CN107474904A CN 107474904 A CN107474904 A CN 107474904A CN 201710747450 A CN201710747450 A CN 201710747450A CN 107474904 A CN107474904 A CN 107474904A
Authority
CN
China
Prior art keywords
parts
hydraulic oil
oil
added
intermixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710747450.0A
Other languages
Chinese (zh)
Inventor
黄海宁
唐宏泉
徐文兵
汪建军
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.)
Cofco Biochemical Anhui Co Ltd
Original Assignee
Cofco Biochemical Anhui 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 Cofco Biochemical Anhui Co Ltd filed Critical Cofco Biochemical Anhui Co Ltd
Priority to CN201710747450.0A priority Critical patent/CN107474904A/en
Publication of CN107474904A publication Critical patent/CN107474904A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M167/00Lubricating compositions characterised by the additive being a mixture of a macromolecular compound, a non-macromolecular compound and a compound of unknown or incompletely defined constitution, each of these compounds being essential
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M177/00Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087Boron oxides, acids or salts
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/086Imides
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04Siloxanes with specific structure
    • C10M2229/041Siloxanes with specific structure containing aliphatic substituents
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08Resistance to extreme temperature
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/08Hydraulic fluids, e.g. brake-fluids

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 discloses a kind of antiwear hydraulic oil and preparation method thereof, hydraulic oil component includes 60 90 parts of base oil, 5 10 parts of pour-point depressant, 5 12 parts of sulphur nitrogen type composite antioxidant, 4 12 parts of barium mahogany sulfonate, 10 20 parts of sulphosuccinates, 4 16 parts of methyl-silicone oil, 28 parts of demulsifier, 8 12 parts of succinimide, 2 10 parts of nano boric acid salt in parts by weight, preparation method of the present invention is simple, obtained hydraulic oil has excellent resistance to compression, wear-resistant and resistance to elevated temperatures, small to oil pump and hydraulic valve infringement.

Description

A kind of antiwear hydraulic oil and preparation method thereof
Technical field
The present invention relates to hydraulic oil preparing technical field, specially a kind of antiwear hydraulic oil and preparation method thereof.
Background technology
Hydraulic oil is the hydraulic medium used using the hydraulic system of liquid pressure energy, and energy biography is played in hydraulic system Pass, be wear-resistant, system lubrication, anti-corrosion, antirust, the effect such as cooling.For hydraulic oil, it should meet that hydraulic means is working first At a temperature of with the requirement under start-up temperature to liquid viscosity, due to hydraulic oil viscosity B coefficent directly with hydraulic operation, transmit imitate Rate is relevant with transmitting accuracy, also requires that the viscosity temperature characteristic of hydraulic oil and shear stability should meet that different purposes are proposed various Demand.The species of hydraulic oil is various, and sorting technique is different, is accustomed to being classified with purposes, also with good grounds oil product type, chemical group Point or flammable classified.Antiwear hydraulic oil is applied in excavator, plays transmission capacity, lubricating utensil is antiseptic and rustproof With the effect of cooling, its normal operation to excavator plays vital effect.
The content of the invention
It is an object of the invention to provide a kind of antiwear hydraulic oil and preparation method thereof, to solve to carry in above-mentioned background technology The problem of going out.
To achieve the above object, the present invention provides following technical scheme:A kind of antiwear hydraulic oil, hydraulic oil component is by weight Number includes base oil 60-90 parts, pour-point depressant 5-10 parts, sulphur nitrogen type composite antioxidant 5-12 parts, barium mahogany sulfonate 4-12 parts, amber Amber acid ester sulfonates 10-20 parts, methyl-silicone oil 4-16 parts, demulsifier 2-8 parts, succinimide 8-12 parts, nano boric acid salt 2- 10 parts.
Preferably, it is compound anti-to include 75 parts of base oil, 8 parts of pour-point depressant, sulphur nitrogen type for the preferable composition proportion of hydraulic oil component 9 parts of oxygen agent, 8 parts of barium mahogany sulfonate, 15 parts of sulphosuccinates, 10 parts of methyl-silicone oil, 5 parts of demulsifier, succinimide 10 Part, 6 parts of nano boric acid salt.
Preferably, its preparation method comprises the following steps:
A, added after mixing pour-point depressant, sulphur nitrogen type composite antioxidant, barium mahogany sulfonate, sulphosuccinates, methyl-silicone oil High-speed stirred is carried out in stirred tank, speed is 4000 revs/min, time 20min, obtains intermixture A;
B, added after mixing demulsifier, succinimide, nano boric acid salt in reactor and carry out heating response, temperature 70 DEG C, time 10min, it is slowly cooled to room temperature afterwards, obtains intermixture B;
C, intermixture B is added in base oil and carries out stirring at low speed, intermixture A is added in whipping process, continue to stir 20min, 2h is stood, that is, obtains hydraulic oil.
Compared with prior art, the beneficial effects of the invention are as follows:Preparation method of the present invention is simple, and obtained hydraulic oil has Excellent resistance to compression, wear-resistant and resistance to elevated temperatures are small to oil pump and hydraulic valve infringement;Wherein, the succinyl added in the present invention is sub- Amine, nano boric acid salt can further improve the abrasion resistance of hydraulic oil;Barium mahogany sulfonate, the succinate added in the present invention Sulfonate can improve the resistance to elevated temperatures of hydraulic oil;Traditional hydraulic oil resultant wear index is 180, and produced by the present invention Hydraulic oil resultant wear index reaches 290, in addition, the preparation method that the present invention uses is mixed using high low speed, Neng Gouti The mixing uniformity of high each component, it can further improve the combination property of hydraulic oil.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment Only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects Enclose.
The present invention provides following technical scheme:A kind of antiwear hydraulic oil, hydraulic oil component include base oil in parts by weight 60-90 parts, pour-point depressant 5-10 parts, sulphur nitrogen type composite antioxidant 5-12 parts, barium mahogany sulfonate 4-12 parts, sulphosuccinates 10-20 parts, methyl-silicone oil 4-16 parts, demulsifier 2-8 parts, succinimide 8-12 parts, nano boric acid salt 2-10 parts.
Embodiment one:
Hydraulic oil component includes 60 parts of base oil, 5 parts of pour-point depressant, 5 parts of sulphur nitrogen type composite antioxidant, mahogany acid in parts by weight 4 parts of barium, 10 parts of sulphosuccinates, 4 parts of methyl-silicone oil, 2 parts of demulsifier, 8 parts of succinimide, 2 parts of nano boric acid salt.
The preparation method of the present embodiment comprises the following steps:
A, added after mixing pour-point depressant, sulphur nitrogen type composite antioxidant, barium mahogany sulfonate, sulphosuccinates, methyl-silicone oil High-speed stirred is carried out in stirred tank, speed is 4000 revs/min, time 20min, obtains intermixture A;
B, added after mixing demulsifier, succinimide, nano boric acid salt in reactor and carry out heating response, temperature 70 DEG C, time 10min, it is slowly cooled to room temperature afterwards, obtains intermixture B;
C, intermixture B is added in base oil and carries out stirring at low speed, intermixture A is added in whipping process, continue to stir 20min, 2h is stood, that is, obtains hydraulic oil.
Embodiment two:
Hydraulic oil component includes 90 parts of base oil, 10 parts of pour-point depressant, 12 parts of sulphur nitrogen type composite antioxidant, oil sulphur in parts by weight Sour 12 parts of barium, 20 parts of sulphosuccinates, 16 parts of methyl-silicone oil, 8 parts of demulsifier, 12 parts of succinimide, nano boric acid salt 10 parts.
The preparation method of the present embodiment comprises the following steps:
A, added after mixing pour-point depressant, sulphur nitrogen type composite antioxidant, barium mahogany sulfonate, sulphosuccinates, methyl-silicone oil High-speed stirred is carried out in stirred tank, speed is 4000 revs/min, time 20min, obtains intermixture A;
B, added after mixing demulsifier, succinimide, nano boric acid salt in reactor and carry out heating response, temperature 70 DEG C, time 10min, it is slowly cooled to room temperature afterwards, obtains intermixture B;
C, intermixture B is added in base oil and carries out stirring at low speed, intermixture A is added in whipping process, continue to stir 20min, 2h is stood, that is, obtains hydraulic oil.
Embodiment three:
Hydraulic oil component includes 65 parts of base oil, 6 parts of pour-point depressant, 6 parts of sulphur nitrogen type composite antioxidant, mahogany acid in parts by weight 7 parts of barium, 12 parts of sulphosuccinates, 6 parts of methyl-silicone oil, 3 parts of demulsifier, 9 parts of succinimide, 4 parts of nano boric acid salt.
The preparation method of the present embodiment comprises the following steps:
A, added after mixing pour-point depressant, sulphur nitrogen type composite antioxidant, barium mahogany sulfonate, sulphosuccinates, methyl-silicone oil High-speed stirred is carried out in stirred tank, speed is 4000 revs/min, time 20min, obtains intermixture A;
B, added after mixing demulsifier, succinimide, nano boric acid salt in reactor and carry out heating response, temperature 70 DEG C, time 10min, it is slowly cooled to room temperature afterwards, obtains intermixture B;
C, intermixture B is added in base oil and carries out stirring at low speed, intermixture A is added in whipping process, continue to stir 20min, 2h is stood, that is, obtains hydraulic oil.
Example IV:
Hydraulic oil component includes 85 parts of base oil, 9 parts of pour-point depressant, 10 parts of sulphur nitrogen type composite antioxidant, oil sulphur in parts by weight Sour 10 parts of barium, 18 parts of sulphosuccinates, 14 parts of methyl-silicone oil, 7 parts of demulsifier, 11 parts of succinimide, nano boric acid salt 9 Part.
The preparation method of the present embodiment comprises the following steps:
A, added after mixing pour-point depressant, sulphur nitrogen type composite antioxidant, barium mahogany sulfonate, sulphosuccinates, methyl-silicone oil High-speed stirred is carried out in stirred tank, speed is 4000 revs/min, time 20min, obtains intermixture A;
B, added after mixing demulsifier, succinimide, nano boric acid salt in reactor and carry out heating response, temperature 70 DEG C, time 10min, it is slowly cooled to room temperature afterwards, obtains intermixture B;
C, intermixture B is added in base oil and carries out stirring at low speed, intermixture A is added in whipping process, continue to stir 20min, 2h is stood, that is, obtains hydraulic oil.
Embodiment five:
Hydraulic oil component includes 70 parts of base oil, 8 parts of pour-point depressant, 7 parts of sulphur nitrogen type composite antioxidant, mahogany acid in parts by weight 9 parts of barium, 16 parts of sulphosuccinates, 8 parts of methyl-silicone oil, 6 parts of demulsifier, 9 parts of succinimide, 8 parts of nano boric acid salt.
The preparation method of the present embodiment comprises the following steps:
A, added after mixing pour-point depressant, sulphur nitrogen type composite antioxidant, barium mahogany sulfonate, sulphosuccinates, methyl-silicone oil High-speed stirred is carried out in stirred tank, speed is 4000 revs/min, time 20min, obtains intermixture A;
B, added after mixing demulsifier, succinimide, nano boric acid salt in reactor and carry out heating response, temperature 70 DEG C, time 10min, it is slowly cooled to room temperature afterwards, obtains intermixture B;
C, intermixture B is added in base oil and carries out stirring at low speed, intermixture A is added in whipping process, continue to stir 20min, 2h is stood, that is, obtains hydraulic oil.
Embodiment six:
Hydraulic oil component includes 75 parts of base oil, 8 parts of pour-point depressant, 9 parts of sulphur nitrogen type composite antioxidant, mahogany acid in parts by weight 8 parts of barium, 15 parts of sulphosuccinates, 10 parts of methyl-silicone oil, 5 parts of demulsifier, 10 parts of succinimide, 6 parts of nano boric acid salt.
The preparation method of the present embodiment comprises the following steps:
A, added after mixing pour-point depressant, sulphur nitrogen type composite antioxidant, barium mahogany sulfonate, sulphosuccinates, methyl-silicone oil High-speed stirred is carried out in stirred tank, speed is 4000 revs/min, time 20min, obtains intermixture A;
B, added after mixing demulsifier, succinimide, nano boric acid salt in reactor and carry out heating response, temperature 70 DEG C, time 10min, it is slowly cooled to room temperature afterwards, obtains intermixture B;
C, intermixture B is added in base oil and carries out stirring at low speed, intermixture A is added in whipping process, continue to stir 20min, 2h is stood, that is, obtains hydraulic oil.
Preparation method of the present invention is simple, and obtained hydraulic oil has excellent resistance to compression, wear-resistant and resistance to elevated temperatures, to oil pump And hydraulic valve infringement is small;Wherein, the succinimide that adds, nano boric acid salt can further improve hydraulic oil in the present invention Abrasion resistance;The barium mahogany sulfonate, the sulphosuccinates that are added in the present invention can improve the resistance to elevated temperatures of hydraulic oil;Pass The hydraulic oil resultant wear index of system is 180, and hydraulic oil resultant wear index produced by the present invention reaches 290, in addition, this hair The preparation method of bright use is mixed using high low speed, it is possible to increase the mixing uniformity of each component, can further be improved The combination property of hydraulic oil.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (3)

  1. A kind of 1. antiwear hydraulic oil, it is characterised in that:Hydraulic oil component includes base oil 60-90 parts, pour-point depressant in parts by weight 5-10 parts, sulphur nitrogen type composite antioxidant 5-12 parts, barium mahogany sulfonate 4-12 parts, sulphosuccinates 10-20 parts, methyl-silicone oil 4-16 parts, demulsifier 2-8 parts, succinimide 8-12 parts, nano boric acid salt 2-10 parts.
  2. A kind of 2. antiwear hydraulic oil according to claim 1, it is characterised in that:The preferable composition proportion bag of hydraulic oil component Include 75 parts of base oil, 8 parts of pour-point depressant, 9 parts of sulphur nitrogen type composite antioxidant, 8 parts of barium mahogany sulfonate, 15 parts of sulphosuccinates, 10 parts of methyl-silicone oil, 5 parts of demulsifier, 10 parts of succinimide, 6 parts of nano boric acid salt.
  3. 3. realize a kind of preparation method of antiwear hydraulic oil described in claim 1, it is characterised in that:Its preparation method include with Lower step:
    A, added after mixing pour-point depressant, sulphur nitrogen type composite antioxidant, barium mahogany sulfonate, sulphosuccinates, methyl-silicone oil High-speed stirred is carried out in stirred tank, speed is 4000 revs/min, time 20min, obtains intermixture A;
    B, added after mixing demulsifier, succinimide, nano boric acid salt in reactor and carry out heating response, temperature 70 DEG C, time 10min, it is slowly cooled to room temperature afterwards, obtains intermixture B;
    C, intermixture B is added in base oil and carries out stirring at low speed, intermixture A is added in whipping process, continue to stir 20min, 2h is stood, that is, obtains hydraulic oil.
CN201710747450.0A 2017-08-28 2017-08-28 A kind of antiwear hydraulic oil and preparation method thereof Pending CN107474904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710747450.0A CN107474904A (en) 2017-08-28 2017-08-28 A kind of antiwear hydraulic oil and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710747450.0A CN107474904A (en) 2017-08-28 2017-08-28 A kind of antiwear hydraulic oil and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107474904A true CN107474904A (en) 2017-12-15

Family

ID=60602815

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710747450.0A Pending CN107474904A (en) 2017-08-28 2017-08-28 A kind of antiwear hydraulic oil and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107474904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108865378A (en) * 2018-08-14 2018-11-23 苏州功业肆点零智能科技有限公司 A kind of preparation method of fire protection flame retarding anti-wear hydraulic oil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103484224A (en) * 2013-10-15 2014-01-01 中国石油化工股份有限公司 Gear oil composition and preparation method thereof
CN104312696A (en) * 2014-10-08 2015-01-28 无锡阳工机械制造有限公司 Hydraulic oil and preparation method thereof
CN105462661A (en) * 2015-11-26 2016-04-06 烟台狮王石化工业有限公司 Nano borate machine oil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103484224A (en) * 2013-10-15 2014-01-01 中国石油化工股份有限公司 Gear oil composition and preparation method thereof
CN104312696A (en) * 2014-10-08 2015-01-28 无锡阳工机械制造有限公司 Hydraulic oil and preparation method thereof
CN105462661A (en) * 2015-11-26 2016-04-06 烟台狮王石化工业有限公司 Nano borate machine oil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108865378A (en) * 2018-08-14 2018-11-23 苏州功业肆点零智能科技有限公司 A kind of preparation method of fire protection flame retarding anti-wear hydraulic oil

Similar Documents

Publication Publication Date Title
CN104987942B (en) A kind of hydraulic oil
CN102250670B (en) Special lubricating grease composition for steel wire rope
CN102618371A (en) Steel rope grease with high dropping point and preparation method of steel rope grease
CN107828473A (en) A kind of high-low temperature resistant long-life extreme pressure grease and preparation method thereof
CN104403727B (en) Low temperature fire resistant hydraulic oil
CN103031181B (en) A kind of complex calcium lubricating grease and preparation method thereof
CN104250575A (en) Steel wire rope grease composition with excellent performance and preparation method thereof
CN105602653A (en) Lubricant additive with antioxidant, antiwear and rustproof functions as well as preparation method and application thereof
CN102757842A (en) Ashless low-temperature hydraulic oil
CN108085097A (en) A kind of high-temperature service lubricating oil
CN107474928A (en) A kind of heavy load hydrodynamic drive lubricating oil composite
CN103642562B (en) Synthetic high-temperature chain oil and its preparation method
CN103710082B (en) Hydraulic fluid compositions and uses thereof
CN107474904A (en) A kind of antiwear hydraulic oil and preparation method thereof
CN104927984A (en) Rust-proof oil composition
CN105316092A (en) Plastic gear lubricating oil and preparation method thereof
CN105293254A (en) Steel rope for elevator device and elevator using the same
CN107603705A (en) A kind of lubricating oil and preparation method thereof
CN108865373B (en) Composite calcium sulfonate polyurea mixed lubricating grease and preparation method thereof
CN102757843B (en) Ashless antiwear hydraulic oil
CN108998176A (en) A kind of aluminum alloy cutting fluid and preparation method thereof
CN103614199B (en) Preparation method of maintenance agent for lubricating and protecting wire rope
CN104357182A (en) Hydraulic oil combination and preparing method thereof
CN105199817A (en) Low-temperature lithium-calcium bearing lubricating grease and preparation method
CN106675727A (en) Low-temperature mechanical lubricating oil 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
RJ01 Rejection of invention patent application after publication

Application publication date: 20171215

RJ01 Rejection of invention patent application after publication