CN112430492A - Special hydraulic oil composition for high-efficiency energy-saving injection molding machine - Google Patents
Special hydraulic oil composition for high-efficiency energy-saving injection molding machine Download PDFInfo
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- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 40
- 238000001746 injection moulding Methods 0.000 title claims abstract description 37
- 239000000203 mixture Substances 0.000 title claims abstract description 33
- 239000000654 additive Substances 0.000 claims abstract description 11
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 10
- 239000002199 base oil Substances 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 8
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- PDEDQSAFHNADLV-UHFFFAOYSA-M potassium;disodium;dinitrate;nitrite Chemical compound [Na+].[Na+].[K+].[O-]N=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PDEDQSAFHNADLV-UHFFFAOYSA-M 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 238000010998 test method Methods 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920000193 polymethacrylate Polymers 0.000 claims description 3
- VMZVBRIIHDRYGK-UHFFFAOYSA-N 2,6-ditert-butyl-4-[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VMZVBRIIHDRYGK-UHFFFAOYSA-N 0.000 claims description 2
- IUHZYJKQGIPVFR-UHFFFAOYSA-N C=CC(C)(C)C1=CC(=CC(=C1O)C(C)(C)C)SC1=CC(=C(C(=C1)C(C)(C)C)O)C(C)(C)C Chemical compound C=CC(C)(C)C1=CC(=CC(=C1O)C(C)(C)C)SC1=CC(=C(C(=C1)C(C)(C)C)O)C(C)(C)C IUHZYJKQGIPVFR-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000002530 phenolic antioxidant Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 230000003647 oxidation Effects 0.000 abstract description 7
- 238000007254 oxidation reaction Methods 0.000 abstract description 7
- 239000010687 lubricating oil Substances 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013556 antirust agent Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
-
- 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
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/062—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups bound to the aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
-
- 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
- C10M2229/00—Organic 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
- C10M2229/04—Siloxanes with specific structure
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Lubricants (AREA)
Abstract
The invention relates to the field of lubricating oil, in particular to a high-efficiency energy-saving hydraulic oil composition special for an injection molding machine, which comprises the following components in percentage by weight: 0.1-5% of antioxidant, 0.1-2.5% of multifunctional additive of wear-resistant hydraulic oil, 1.0-25% of viscosity index improver, 0-0.05% of anti-foaming agent and the balance of base oil; the base oil is hydrogenated mineral base oil. The high-efficiency energy-saving hydraulic oil composition special for the injection molding machine solves the problems of reducing the pipeline resistance of a hydraulic system and preventing leakage, has good low-temperature fluidity, extremely high viscosity index and excellent oxidation resistance, and has an energy-saving effect of more than 6 percent compared with the common oil special for the injection molding machine (the viscosity index is 100). The product of the invention has reasonable raw material compatibility, simple preparation method, wide application range and easily obtained raw materials.
Description
Technical Field
The invention relates to the field of lubricating oil, in particular to high-efficiency energy-saving hydraulic oil special for an injection molding machine, which is suitable for hydraulic systems of various middle-end and high-end injection molding machines.
Background
The development trend of current mechanical equipment is developing towards small volume, light weight, high benefit and long service life, the lubricating oil products are updated, and polar substances such as efficient additives and the like are added into the oil. The injection molding machine can mold plastic products with complex shapes and precise sizes or with metal inserts in one step, and is widely applied to various fields of national defense, electromechanics, automobiles, transportation, building materials, packaging, agriculture, cultural and educational sanitation and daily life of people, and the quantity of the plastic products accounts for about half of the plastic mechanical industry. Compared with the foreign injection molding machine, the current domestic injection molding machine has the defects of larger volume, low molding precision, large energy consumption and the like, saves energy and is one of the key points of national requirements. Therefore, the energy consumption is reduced, and the added value and the competitiveness of the domestic injection molding machine are improved.
For injection molding machine equipment, the most obvious energy-saving effect is embodied on a hydraulic system and a control system. The hydraulic transmission uses liquid as working medium and uses the pressure of the liquid to realize the transmission and control functions of mechanical movement or energy. In a hydraulic system, hydraulic oil is required to not only complete energy transfer, but also ensure the efficiency of the hydraulic system. And the hydraulic oil with high viscosity index is used, so that the working efficiency of a hydraulic system is higher, and an excellent energy-saving effect is achieved.
The hydraulic oil is used as a working and lubricating medium of a hydraulic system of the injection molding machine, the market demand is large, and the high-efficiency energy-saving hydraulic oil special for the injection molding machine with prominent energy-saving performance is not sold and used in China. In the face of the increasingly serious energy shortage situation in China, the popularization and the use of the high-efficiency energy-saving hydraulic oil special for the injection molding machine have very important significance.
Disclosure of Invention
The invention aims to provide the special hydraulic oil for the injection molding machine, which has an obvious energy-saving effect (more than 6% of the energy-saving effect compared with the common hydraulic oil with the viscosity index of 100), has good low-temperature fluidity, extremely high viscosity index and excellent oxidation resistance, and meets the requirements of users on energy conservation and emission reduction on the premise of not changing the operation parameters of equipment.
In order to realize the purpose of the invention, the invention provides a special hydraulic oil composition for an efficient energy-saving injection molding machine, which comprises the following components in percentage by weight:
preferably, the special hydraulic oil composition for the high-efficiency energy-saving injection molding machine comprises the following components in percentage by weight:
preferably, the composition further comprises an anti-foaming agent with the mass percentage of 0.001-0.05%.
Further preferably, the composition comprises the following components in percentage by weight:
preferably, the high-efficiency energy-saving hydraulic oil composition special for injection molding machines, disclosed by the invention, is one or any combination of a phenol antioxidant and an amine antioxidant, and is mainly characterized by having excellent oxidation resistance and good compatibility, and playing roles in resisting oxidation and preventing gelation in oil products. Such as: liquid phenol, dialkyl diphenylamine, alkylated diphenylamine, methylene 4, 4' -thiobis- (2, 6-di-tert-butylphenol), 2, 6-di-tert-butyl alpha-dimethylamino-p-cresol, wherein the effect of Irganox L118 is better.
Preferably, the high-efficiency energy-saving hydraulic oil composition special for injection molding machines is prepared by adding an antiwear agent, an antirust agent and an antioxidant into the multifunctional additive, and adding a metal deactivator, an anti-emulsifier and an anti-foaming agent into the multifunctional additive. The kinematic viscosity (40 ℃) is 70-90 mm2And/s, 6-8 percent of sulfur (mass fraction), 3-4 percent of phosphorus (mass fraction) and 2-5 percent of zinc (mass fraction), and the appearance is amber transparent liquid. The hydraulic oil prepared by the multifunctional additive not only hasGood rust resistance and oxidation resistance, and outstanding abrasion resistance, can greatly reduce the abrasion of the hydraulic pump and other elements, and prolong the service life of the machine. Such as: hitec 521 from Afton Chemical, LZ 5703 from Lubrizol Corporation, and the like. Typical specifications are given in the following table.
Typical physicochemical data of Hitec 521
| Item | Typical data | Test method |
| Kinematic viscosity (40 ℃), mm2/s | 75 | GB/T 265 |
| Density, kg/m3 | 1030 | GB/T 1884 |
| Flash point (closed mouth), deg.C | 125 | GB/T 3536 |
| Sulfur content,% (mass fraction) | 8.4 | GB/T 388 |
| Phosphorus content,% (mass fraction) | 3.96 | SH/T 0296 |
| Zinc content,% (mass fraction) | 5.04 | SH/T 0226 |
Typical physicochemical data of LZ 5703
| Item | Typical value | Test method |
| Kinematic viscosity (40 ℃), mm2/s | 86 | GB/T 265 |
| Density, kg/m3 | 1023 | GB/T 1884 |
| Flash point (closed mouth), deg.C | 110 | GB/T 3536 |
| Sulfur content,% (mass fraction) | 7.70 | GB/T 388 |
| Phosphorus content,% (mass fraction) | 3.90 | SH/T 0296 |
| Zinc content,% (mass fraction) | 4.87 | SH/T 0226 |
Preferably, according to the special hydraulic oil composition for the high-efficiency energy-saving injection molding machine, the viscosity index improver is polymethacrylate, is one of viscosity index improvers which are widely applied, and has the characteristics of good shear resistance, excellent low-temperature performance and high-efficiency improvement of the viscosity index of an oil product. If the addition amount of the viscosity index improver is too small, the viscosity-temperature characteristics of the product are affected, and if the addition amount is too large, the shear resistance of the product is reduced, and the service life of the product is shortened. The invention adopts the test method of (CEC L-45-A-99) KRL20h, and the PSSI is not more than 20(10 percent is dissolved in 100N mineral oil). Most preferred is Viscoplex8-219 manufactured by Evonik Additives GmbH.
Preferably, the hydraulic oil composition special for the high-efficiency energy-saving injection molding machine is one or a mixture of two of silicon type and non-silicon type antifoaming agents. Such as: polymethyl silicone oil (T901) and polyacrylate (T912). If the addition ratio of the antifoaming agent is too small, the foaming properties of the hydraulic oil are affected, and if the addition ratio is too large, the air release properties of the hydraulic oil are affected.
The base oil adopts hydrogenated mineral base oil, and the viscosity index is not less than 120.
The special hydraulic oil composition for the high-efficiency energy-saving injection molding machine can be prepared by adopting a conventional lubricating oil blending method, and specifically, the special hydraulic oil composition is prepared by adding the components into a blending container according to the proportion and stirring for 2-3 hours at 50-65 ℃.
The invention adopts the technical scheme that functional additives such as an antioxidant, a viscosity index improver, an antifoaming agent and the like are added into base oil, the viscosity index of a product reaches more than 185, a Parker-Denison T6C vane pump is adopted for energy-saving test, reference oil is No. 46 hydraulic oil special for an injection molding machine with the viscosity index of 100, and the total energy-saving amount is not less than 6%.
Compared with the prior art, the special hydraulic oil for the high-efficiency energy-saving injection molding machine has the following advantages and effects:
the high-efficiency energy-saving hydraulic oil composition special for the injection molding machine has extremely high viscosity index, has excellent oxidation resistance, and has an energy-saving effect of more than 6 percent compared with the hydraulic oil (the viscosity index is 100) special for the common injection molding machine. The product of the invention has reasonable raw material compatibility, simple preparation method, wide application range and easily obtained raw materials.
The performance of the special hydraulic oil composition for the high-efficiency energy-saving injection molding machine is obviously superior to that of similar products at home and abroad, and the special hydraulic oil composition is suitable for various middle-end and high-end injection molding machine hydraulic systems.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Examples 1 to 4
The components of the special hydraulic oil composition for the high-efficiency energy-saving injection molding machine in the embodiment are shown in the table 1, and the preparation process is as follows: the preparation method comprises the steps of heating hydrogenated base oil to 60 ℃ in a blending container, adding a viscosity index improver, an anti-wear hydraulic oil multifunctional additive and an antioxidant, stirring until the mixture is uniform and transparent, adding an anti-foaming agent according to a ratio, and stirring for 2-3 hours.
Table 1 examples 1-4 contents of each component
Wherein the hydrogenated base oils II +2, II +4 and II +6 of the above examples are produced from the medium petrochemical industry and have typical kinematic viscosities of 8.919mm at 40 deg.C2/s、22.57mm2/s、32.5mm2Typical kinematic viscosities at 40 ℃ of 19.46mm for/S, YU 4 (from SK in Korea) and Ultra-S4 (from Duolone in Korea), respectively2/s、20.58mm2/s。
Irganox L118 is available from BASF, LZ 5703 from Lubrizol Corporation, Hitec 521 from Afton Chemical, Viscoplex8-219 from Evonik Additives GmbH, and T901 from Tianyu Petroleum Additives, Dengyang.
Each performance evaluation was performed on examples 1-4, and the relevant performance of the subjects was tested according to the national standard method. The results are shown in Table 2.
The results are shown in table 2 below:
TABLE 2 analytical data for examples 1-4
The viscosity grades of the existing hydraulic oil products special for injection molding machines are mainly 46 grades and 68 grades. Because the working pressure of the hydraulic system of the injection molding machine mainly used in China at present is lower and usually does not exceed 10MPa), and the hydraulic system is in a discontinuous and intermittent working state, the working condition is mild; in addition, the injection molding machine is usually positioned in a factory building, the oil temperature of hydraulic oil is stable during working, and the requirement on the viscosity-temperature performance of the hydraulic oil is not strict. Therefore, the viscosity index of the hydraulic oil special for the existing injection molding machine is not high and is generally about 100. And the higher viscosity index (the viscosity index is not less than 185), so that the hydraulic oil product has good low-temperature starting performance, the working efficiency loss of the hydraulic oil can be reduced, and a certain energy-saving effect is achieved.
The data show that the special hydraulic oil composition for the high-efficiency energy-saving injection molding machine has good viscosity-temperature performance, oxidation resistance, anti-shearing property and obvious energy-saving effect, improves the volumetric efficiency of a system, reduces internal leakage, and emphasizes the energy-saving property of a hydraulic pump of the injection molding machine during normal operation.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A high-efficiency energy-saving hydraulic oil composition special for an injection molding machine comprises the following components in percentage by weight:
2. the composition according to claim 1, characterized by comprising the following components in percentage by weight:
3. the composition according to claim 1 or 2, characterized in that the composition further comprises an antifoaming agent in an amount of 0.001-0.05% by weight.
4. The composition according to any one of claims 1 to 3, which comprises the following components in percentage by weight:
5. the composition as claimed in any one of claims 1 to 4, wherein the antioxidant is one or a combination of any of phenolic antioxidant and amine antioxidant; preferably one or a combination of more of liquid phenol, dialkyl diphenylamine, alkylated diphenylamine, methylene 4, 4' -thiobis- (2, 6-di-tert-butylphenol) or 2, 6-di-tert-butyl alpha-dimethylamino-p-cresol; more preferably Irganox L118.
6. According toThe composition as claimed in any one of claims 1 to 4, wherein the antiwear hydraulic fluid multifunctional additive has a kinematic viscosity at 40 ℃ of 70 to 90mm2(s) 6-9% of sulfur, 3-4% of phosphorus and 4-6% of zinc; hitec 521 manufactured by Afton Chemical company or LZ 5703 manufactured by Lubrizol corporation is preferable.
7. The composition of any of claims 1-4, wherein the viscosity index improver is a polymethacrylate, preferably a polymethacrylate having a test method of (CEC L-45-A-99) KRL20h, and a PSSI of no greater than 20; more preferably, Viscoplex8-219 manufactured by Evonik Additives GmbH.
8. The composition according to any one of claims 1 to 4, wherein the anti-foaming agent is a silicon-based or/and non-silicon-based anti-foaming agent; one or more of polymethylsilicone oil or polyacrylate is preferred.
9. The composition of any one of claims 1 to 4, wherein the viscosity index of the base oil is not less than 120.
10. The composition according to any one of claims 1 to 4, which is prepared from the following components in percentage by weight:
preferably, the composition is prepared from the following components in percentage by weight:
or the like, or, alternatively,
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114958462A (en) * | 2021-07-31 | 2022-08-30 | 福斯润滑油(中国)有限公司 | Synthetic hydraulic oil for wind power generation hydraulic system and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232252A (en) * | 2013-06-06 | 2014-12-24 | 中国石油化工股份有限公司 | High efficiency hydraulic oil composition |
| CN107937099A (en) * | 2017-11-29 | 2018-04-20 | 浙江实美润滑科技有限公司 | A kind of dedicated antiwear hydraulic oil of injection molding machine and preparation method |
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- 2019-08-26 CN CN201910790586.9A patent/CN112430492A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232252A (en) * | 2013-06-06 | 2014-12-24 | 中国石油化工股份有限公司 | High efficiency hydraulic oil composition |
| CN107937099A (en) * | 2017-11-29 | 2018-04-20 | 浙江实美润滑科技有限公司 | A kind of dedicated antiwear hydraulic oil of injection molding machine and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114958462A (en) * | 2021-07-31 | 2022-08-30 | 福斯润滑油(中国)有限公司 | Synthetic hydraulic oil for wind power generation hydraulic system and preparation method thereof |
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Application publication date: 20210302 |