CN108822931B - Low-temperature lifting oil for vehicles and preparation method thereof - Google Patents
Low-temperature lifting oil for vehicles and preparation method thereof Download PDFInfo
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- CN108822931B CN108822931B CN201810331066.7A CN201810331066A CN108822931B CN 108822931 B CN108822931 B CN 108822931B CN 201810331066 A CN201810331066 A CN 201810331066A CN 108822931 B CN108822931 B CN 108822931B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The low-temperature lifting oil for the vehicle comprises the following raw materials in percentage by mass: 0.4-1.5% of pour point depressant, 1.22001-3.00002% of auxiliary agent and the balance of blended base oil which is blended by 10# low-freezing white oil and 32# synthetic oil according to the mass ratio of 1: 1-3: 2, wherein in the preparation process, the 10# low-freezing white oil is heated to 60-80 ℃, then the 32# synthetic oil is added, the temperature is raised to 90-110 ℃, the mixture is mixed for 10-20 min, then the heat preservation dehydration treatment is carried out for 10-20 min, the temperature is reduced to 80-90 ℃, then the pour point depressant and the auxiliary agent are added, and the mixture is mixed for 60-90 min at 80-100 ℃. The design significantly improves the pour point, flash point, seal adaptability and demulsification performance of the lift oil.
Description
Technical Field
The invention belongs to the field of hydraulic oil, and particularly relates to hydraulic oil for a cab lifting system of a commercial vehicle and a preparation method thereof, which are suitable for improving the condensation point, the flash point, the sealing element adaptability and the anti-emulsification performance of the lifting oil.
Background
The supporting and floating of the cab and the transmission of the lifting force of the cab are carried out by oil products in a hydraulic system during the running process of the vehicle. The working environment of the vehicle is complex, and the oil product is required to have good weather resistance, namely the oil product can adapt to work in various temperature environments, especially the oil product for lifting the cab, and the normal lifting speed of the cab in a low-temperature environment is further ensured. At present, no special oil product for lifting a cab exists in China, no standard can be referred to, and most main engine plants use low-viscosity oil products with good low-temperature performance as working media, such as shock absorber oil, 10# aviation hydraulic oil and the like, particularly the 10# aviation hydraulic oil is most widely applied.
The shock absorber oil is mainly used on the automobile shock absorber in the early stage, and is extended to a cab lifting system later because no oil is suitable, and the kinematic viscosity limit at-30 ℃ specified in the standard Q/DFCVCM 4352-2The low-temperature fluidity requirement of the hydraulic oil is not strict compared with that of No. 10 aviation hydraulic oil, so that the force for lifting the cab is not good in extreme cold weather, and the hydraulic oil cannot be adapted to commercial productsThe requirement of vehicle development in extremely cold areas.
10# aviation hydraulic oil is used as a working liquid of a hydraulic transmission mechanism of a high-altitude aircraft, is applied to the aviation field, and is not the optimal choice of vehicle oil products. Because the surface temperature and the engine working temperature of the vehicle in summer are very high, the surface temperature of an engine exhaust pipe can reach 400 ℃, the temperature of heat radiated to each oil pipe of the vehicle exceeds 100 ℃, and the flash point limit value specified in the standard SH 0358 and 1995 is not less than 92 ℃, namely, if No. 10 aviation hydraulic oil leaks in the summer use process, spontaneous combustion can be caused, and the vehicle is extremely unsafe. Secondly, the No. 10 aviation hydraulic oil standard does not require the anti-emulsification performance after the water is mixed in the oil product and the adaptability to swelling of a sealing element and the like, and has low corrosion requirements on metal parts in a hydraulic system, and the requirements are key physicochemical indexes which the oil for the hydraulic system should have.
Disclosure of Invention
In order to solve the problem that the conventional hydraulic oil cannot meet the requirements of commercial vehicles on properties such as condensation point, flash point, sealing element adaptability and demulsification resistance, the invention provides the vehicle low-temperature lifting oil capable of remarkably improving the condensation point, flash point, sealing element adaptability and demulsification resistance of the lifting oil and the preparation method thereof.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the low-temperature lifting oil for the vehicle comprises the following raw materials in percentage by mass: 0.4-1.5% of pour point depressant, 1.22001-3.00002% of auxiliary agent and the balance of blended base oil, wherein the blended base oil is prepared by blending 10# low-freezing white oil and 32# synthetic oil according to the mass ratio of 1: 1-3: 2.
The auxiliary agent comprises an antioxidant, an anti-emulsifying agent, an extreme pressure anti-wear agent and an anti-foaming agent, wherein the mass percentage content of the antioxidant, the anti-emulsifying agent, the extreme pressure anti-wear agent and the anti-foaming agent is respectively 0.6-2%, 0.02-0.1%, 0.6-0.9%, and 0.00001-0.00002%.
The pour point depressant is poly alpha-olefin, the pour point depression degree is not lower than 15 ℃, and the kinematic viscosity at 100 ℃ is not more than 800mm2/s。
The antioxidant is a thioether-group-containing high-molecular-weight phenol antioxidant, the anti-emulsifying agent is an ethylene glycol modified polyether high-molecular compound, the extreme pressure anti-wear agent is a sulfur-phosphorus extreme pressure anti-wear agent, and the anti-foaming agent is a composite anti-foaming agent consisting of a silicon-containing anti-foaming agent and a non-silicon anti-foaming agent.
A preparation method of low-temperature lifting oil for vehicles sequentially comprises the following steps:
preparing blended base oil: heating 10# low-freezing white oil to 60-80 ℃, adding 32# synthetic oil, heating to 90-110 ℃, mixing for 10-20 min, then carrying out heat preservation dehydration for 10-20 min, and cooling to 80-90 ℃ to obtain blended base oil;
preparation of the lift oil: the pour point depressant and the auxiliary agent are added into the blended base oil according to the required proportion, and then the mixture is mixed for 60-90 min at the temperature of 80-100 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the blended base oil in the low-temperature lifting oil for the vehicle is prepared by blending 10# low-freezing white oil and 32# synthetic oil according to the mass ratio of 1: 1-3: 2, and the lifting oil obtained by taking the combination as the base oil has the characteristics of low freezing point (-60-70 ℃), high flash point (150-180 ℃), high viscosity index (130-140), good adaptability of a sealing element and excellent emulsification resistance, can meet the use environment of-60 ℃, so that the lifting speed of a cab at a low temperature is obviously improved, the stability of a hydraulic system at different environmental temperatures can be maintained, and meanwhile, the spontaneous combustion of oil products at a high temperature can be effectively prevented. Therefore, the invention obviously improves the condensation point, the flash point, the sealing element adaptability and the anti-emulsifying performance of the lifting oil, and effectively maintains the stability of the hydraulic system under different environmental temperatures.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
The low-temperature lifting oil for the vehicle comprises the following raw materials in percentage by mass: 0.4-1.5% of pour point depressant, 1.22001-3.00002% of auxiliary agent and the balance of blended base oil, wherein the blended base oil is prepared by blending 10# low-freezing white oil and 32# synthetic oil according to the mass ratio of 1: 1-3: 2.
The auxiliary agent comprises an antioxidant, an anti-emulsifying agent, an extreme pressure anti-wear agent and an anti-foaming agent, wherein the mass percentage content of the antioxidant, the anti-emulsifying agent, the extreme pressure anti-wear agent and the anti-foaming agent is respectively 0.6-2%, 0.02-0.1%, 0.6-0.9%, and 0.00001-0.00002%.
The pour point depressant is poly alpha-olefin, the pour point depression degree is not lower than 15 ℃, and the kinematic viscosity at 100 ℃ is not more than 800mm2/s。
The antioxidant is a thioether-group-containing high-molecular-weight phenol antioxidant, the anti-emulsifying agent is an ethylene glycol modified polyether high-molecular compound, the extreme pressure anti-wear agent is a sulfur-phosphorus extreme pressure anti-wear agent, and the anti-foaming agent is a composite anti-foaming agent consisting of a silicon-containing anti-foaming agent and a non-silicon anti-foaming agent.
A preparation method of low-temperature lifting oil for vehicles sequentially comprises the following steps:
preparing blended base oil: heating 10# low-freezing white oil to 60-80 ℃, adding 32# synthetic oil, heating to 90-110 ℃, mixing for 10-20 min, then carrying out heat preservation dehydration for 10-20 min, and cooling to 80-90 ℃ to obtain blended base oil;
preparation of the lift oil: the pour point depressant and the auxiliary agent are added into the blended base oil according to the required proportion, and then the mixture is mixed for 60-90 min at the temperature of 80-100 ℃.
The principle of the invention is illustrated as follows:
blending base oil: compared with the single use of 10# low-freezing white oil or 32# synthetic oil, the blending formula of the 10# low-freezing white oil and the 32# synthetic oil according to the mass ratio of 1: 1-3: 2 can provide better low-temperature performance, high viscosity index and oxidation resistance.
The preparation method of the blended base oil comprises the following steps: in the step, 10# low-freezing white oil is heated to 60-80 ℃ to fully fuse the base oil and the additives, 32# synthetic oil is added and heated to 90-110 ℃, so that the light crude oil is volatilized, bubbles stirred at low temperature are removed, and trace water in the oil is evaporated, thereby effectively improving the freezing point and flash point performances of the lifting oil, and enabling the sealing element adaptability and the anti-emulsification performance to be more stable.
The components of the invention are illustrated as follows:
example 1:
the low-temperature lifting oil for the vehicle comprises the following raw materials in percentage by mass: 1.0 percent of pour point depressant, 0.8 percent of antioxidant, 0.04 percent of anti-emulsifier, 0.7 percent of extreme pressure anti-wear agent, 0.000015 percent of anti-foaming agent and the balance of blended base oil, wherein the blended base oil is prepared by blending 10# low-freezing white oil and 32# synthetic oil according to the mass ratio of 3:2, the pour point depressant is poly-alpha-olefin, the pour point depression degree of the poly-alpha-olefin is not lower than 15 ℃, and the kinematic viscosity of the poly-alpha-olefin at 100 ℃ is not more than 800mm2The lubricant is characterized in that the antioxidant is a thioether-group-containing high-molecular-weight phenol antioxidant, the anti-emulsifying agent is an ethylene glycol modified polyether high-molecular compound, the extreme pressure antiwear agent is a sulfur-phosphorus extreme pressure antiwear agent, and the anti-foaming agent is a composite anti-foaming agent consisting of a silicon-containing anti-foaming agent and a non-silicon anti-foaming agent.
A preparation method of low-temperature lifting oil for vehicles sequentially comprises the following steps:
preparing blended base oil: heating 10# low-freezing white oil to 80 ℃, adding 32# synthetic oil, heating to 110 ℃, mixing for 10min, then carrying out heat preservation and dehydration treatment for 10min, and cooling to 90 ℃ to obtain blended base oil;
preparation of the lift oil: the pour point depressant and the auxiliary agent are added into the blended base oil according to the required proportion and then mixed for 80min at 90 ℃.
Example 2:
the difference from example 1 is that:
the lifting oil comprises the following raw materials in percentage by mass: 1.5% of pour point depressant, 2% of antioxidant, 0.1% of anti-emulsifier, 0.9% of extreme pressure anti-wear agent, 0.00002% of anti-foaming agent and the balance of blended base oil, wherein the blended base oil is prepared by blending 10# low-freezing white oil and 32# synthetic oil according to the mass ratio of 4: 3.
The preparation method sequentially comprises the following steps:
preparing blended base oil: heating 10# low-freezing white oil to 72 ℃, adding 32# synthetic oil, heating to 100 ℃, mixing for 12min, then carrying out heat preservation and dehydration treatment for 20min, and cooling to 80 ℃ to obtain blended base oil;
preparation of the lift oil: the pour point depressant and the auxiliary agent are added into the blended base oil according to the required proportion and then mixed for 60min at 100 ℃.
Example 3:
the difference from example 1 is that:
the lifting oil comprises the following raw materials in percentage by mass: 0.4% of pour point depressant, 0.6% of antioxidant, 0.02% of anti-emulsifier, 0.6% of extreme pressure anti-wear agent, 0.00001% of anti-foaming agent and the balance of blended base oil, wherein the blended base oil is prepared by blending 10# low-freezing white oil and 32# synthetic oil according to the mass ratio of 1: 1.
The preparation method sequentially comprises the following steps:
preparing blended base oil: heating 10# low-condensation white oil to 60 ℃, adding 32# synthetic oil, heating to 90 ℃, mixing for 20min, then carrying out heat preservation and dehydration treatment for 20min, and cooling to 90 ℃ to obtain blended base oil;
preparation of the lift oil: the pour point depressant and the auxiliary agent are added into the blended base oil according to the required proportion, and then the mixture is mixed for 90min at the temperature of 90 ℃.
To examine the properties of the invention, the properties of the lift oil prepared in the above examples were tested as follows, and the results are shown in Table 1:
the above results clearly show that the blending formula adopted by the invention has the following advantages in the use performances such as the condensation point, the flash point, the sealing element adaptability and the anti-emulsification performance of the oil product:
1. the condensation point of the blended lifting oil is reduced by 10-15 ℃, and the low-temperature performance is obviously improved.
2. The flash point of the blended lift oil is improved by more than 30 ℃, and the safety and the reliability are improved.
3. The viscosity of the 10# low-condensation white oil is low, the swelling of a sealing element is easy to cause, the viscosity of the 32# synthetic oil is relatively high, the pressure of an oil cylinder is too high, the lifting efficiency is influenced, the sealing adaptability index of hydraulic oil is reduced by 2-3 units through the blending of the 10# low-condensation white oil and the 32# synthetic oil, and the blended lifting oil is good in sealing adaptability.
4. The lifting oil adopted by the invention keeps the better demulsification performance of the 10# low-freezing white oil, and the demulsification performance of the lifting oil is better than that of the 32# oil.
5. The viscosity index of the lifting oil adopted by the invention is higher than that of hydraulic oil which takes 10# low-freezing white oil alone and 32# synthetic oil alone as base oil, the viscosity of the lifting oil is slightly influenced by the temperature of the external environment due to the high viscosity index, and the stability of a hydraulic system can be well kept in both high-temperature and low-temperature environments.
Claims (4)
1. The low-temperature lifting oil for the vehicle is characterized in that:
the lifting oil comprises the following raw materials in percentage by mass: the lubricant comprises 0.4-1.5% of pour point depressant, 1.22001-3.00002% of assistant and the balance of blending base oil, wherein the assistant consists of an antioxidant, an anti-emulsifier, an extreme pressure antiwear agent and an antifoaming agent, the mass percentage contents of the antioxidant, the anti-emulsifier, the extreme pressure antiwear agent and the antifoaming agent are respectively 0.6-2%, 0.02-0.1%, 0.6-0.9% and 0.00001-0.00002%, and the blending base oil is prepared by blending 10# low-freezing white oil and 32# synthetic oil according to the mass ratio of 1: 1-3: 2.
2. The low-temperature lifting oil for the vehicle as claimed in claim 1, wherein: the pour point depressant is poly alpha-olefin, the pour point depression degree is not lower than 15 ℃, and the kinematic viscosity at 100 ℃ is not more than 800mm2/s。
3. The low-temperature lifting oil for the vehicle as claimed in claim 1, wherein: the antioxidant is a thioether-group-containing high-molecular-weight phenol antioxidant, the anti-emulsifying agent is an ethylene glycol modified polyether high-molecular compound, the extreme pressure anti-wear agent is a sulfur-phosphorus extreme pressure anti-wear agent, and the anti-foaming agent is a composite anti-foaming agent consisting of a silicon-containing anti-foaming agent and a non-silicon anti-foaming agent.
4. The preparation method of the low-temperature lift oil for the vehicle as claimed in claim 1, is characterized in that:
the preparation method sequentially comprises the following steps:
preparing blended base oil: heating 10# low-freezing white oil to 60-80 ℃, adding 32# synthetic oil, heating to 90-110 ℃, mixing for 10-20 min, then carrying out heat preservation dehydration for 10-20 min, and cooling to 80-90 ℃ to obtain blended base oil;
preparation of the lift oil: the pour point depressant and the auxiliary agent are added into the blended base oil according to the required proportion, and then the mixture is mixed for 60-90 min at the temperature of 80-100 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810331066.7A CN108822931B (en) | 2018-04-13 | 2018-04-13 | Low-temperature lifting oil for vehicles and preparation method thereof |
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| CN201810331066.7A CN108822931B (en) | 2018-04-13 | 2018-04-13 | Low-temperature lifting oil for vehicles and preparation method thereof |
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| CN108822931B true CN108822931B (en) | 2021-05-11 |
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| US6278006B1 (en) * | 1999-01-19 | 2001-08-21 | Cargill, Incorporated | Transesterified oils |
| SE9902681D0 (en) * | 1999-07-13 | 1999-07-13 | Canadian Oil Co Sweden Ab | Lubricant |
| CN104651026B (en) * | 2015-02-02 | 2017-10-20 | 鞍山海华油脂化学有限公司 | A kind of anti-coking type turbine oil and preparation method thereof |
| CN105219492A (en) * | 2015-09-16 | 2016-01-06 | 安徽贝利机械制造有限公司 | A kind of rig lubricating oil and preparation method thereof |
| CN106479648A (en) * | 2016-10-17 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of high viscosity synthetic hydraulic fluid compositionss and its application |
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