CN103351913B - Special lubricating grease for shock absorber as well as preparation method and application thereof - Google Patents
Special lubricating grease for shock absorber as well as preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses special lubricating grease for a shock absorber as well as a preparation method and an application thereof. The invention adopts the following technical scheme: the special lubricating grease is prepared by the following raw materials in parts by weight: 65-85 parts of base oil, 10-15 parts of C12-C22 hydroxy fatty acid, 2-5 parts of lithium hydroxide, 1-5 parts of boric acid, 1-3 parts of an antioxidant, and 1-3 part s of sulfosalicylic acid. The invention further discloses the preparation method for the special lubricating grease and the application of the special lubricating grease to the shock absorber. The special lubricating grease is novel lubricating grease which is more resistant to a high temperature, more resistant to water spraying, more resistant to an extreme pressure and more lubricating in comparison with a conventional lubricating agent for the shock absorber; the raw materials in the preparation method are reasonable in proportion, the production process is advanced, and the cost is low; a pollution problem basically cannot be caused in a production process of the special lubricating grease; the sale price can be effectively reduced; and the environmental pollution is alleviated at the same time.
Description
Technical field
The present invention relates to vibroshock technical field of lubricating grease, be specifically related to a kind of vibroshock special grease and its preparation method and application.
Background technology
Vibroshock is one of key position of vehicle, carries many key propertys of vehicle, makes elastic support and decide the supporting capacity of vehicle to vehicle body and quality of loads.Vibroshock can reduce the mass force that vehicle body bears, and improves the braking in a turn ability of vehicle, ensures the comfortableness that vehicle travels and stationarity, improves reliability and the life-span of various vehicle components, thus improves security, improve the control stability of vehicle simultaneously.Because the structure of vibroshock is increasingly sophisticated, complete processing improves constantly, and working conditions is also harsher, not only requires that work-ing life is longer, also will consider to work under different envrionment conditionss simultaneously, requires that automobile-used vibroshock lubricant has good capability and performance.
The lubricant of current vehicular shock absorber is shock absorber fluid classification, shock absorber fluid be exactly utilize fluid itself to flow resistance to consume the energy of vibration, when the oil cylinder piston in vibroshock is subject to External Force Acting, fluid high speed flow is through damping duct, kinetic energy is consumed by friction, be converted to heat, thus weaken until disappear in the face of the shock action of automobile with making.It belongs to special lubricant applications occasion, and in the classification had, be listed in hydraulic pressure oils, but there is no special classification at present, domestic and international shock absorber fluid is without unified specification and standard.
Affect vibroshock performance, except depending on the structure of vibroshock, outside the factor such as manufacturing process and assembling, vibroshock lubricant is the key factor of impact about performance.The velocity characteristic of vibroshock require that vibroshock lubricant has excellent air release property energy; The foam characteristic of vibroshock requires that vibroshock lubricant has outstanding froth stability; The temperature profile of vibroshock requires that vibroshock lubricant has higher viscosity index and good low-temperature performance; The thermal equilibrium performance requriements vibroshock lubricant of vibroshock has good thermostability, the work-ing life of vibroshock lubricant extends, correspondingly can extend the work-ing life of vibroshock, therefore abrasion resistance is another major influence factors of vibroshock lubricant, also should possess excellent rubber compatibility and good corrosion resistance and antioxidant property simultaneously.
Because domestic and international vibroshock shock absorber fluid used, without unified specification and standard, causes current China vehicular shock absorber lubricant to there is following problem: poor heat stability at present; Most shock absorber fluid has rubber corrosiveness; Oil product seepage and leakage is caused with easily aging reason because rubber seal and oil property do not mate; Corrosion resistance and antioxidant property poor, the metal contacted with vibroshock has steel, copper, chromium, powder metallurgy and zinc, aluminium alloy etc., shock absorber fluid contacts these materials and easily produces impurity and rust corrosion, and the acidic substance etc. secondly in use produced may cause it to be oxidized.
Therefore, be necessary to develop a kind of vibroshock special grease, can not only solve the problem well, and can production cost be reduced, environmentally friendly and can meet the need of market further.
Summary of the invention
The technical problem that the present invention solves there is provided a kind of vibroshock special grease, not only reduce the usage quantity of lubricant in current vibroshock use procedure, improve lubricant effect, and the result of use of the pollution that can effectively reduce environment and lifting vibroshock.
Another technical problem that the present invention solves there is provided a kind of preparation method of vibroshock special grease, each reasonable raw material proportioning in this preparation method, and production technique is advanced and with low cost.
The technical problem that the present invention also solves is this vibroshock special grease application in vibroshock.
Technical scheme of the present invention is: a kind of vibroshock special grease, it is characterized in that being prepared from by the raw material of following weight part: base oil 65-85 part, C
12-C
22hydroxy fatty acid 10-15 part, lithium hydroxide 2-5 part, boric acid 1-5 part, antioxidant 1-3 part and sulphosalicylic acid 1-3 part, described base oil is one or more the mixture in mineral oil, synthetic oil and silicone oil, described antioxidant is one or more the mixture in pentanoic, phenyl-a-naphthylamine, Phenyl beta naphthylamine and 2,6-toluene di-tert-butyl phenol.
C of the present invention
12-C
22hydroxy fatty acid is ten dihydroxystearic acids.
Vibroshock special grease of the present invention is prepared from by the raw material of following weight part: 70 parts, mineral oil, ten dihydroxystearic acid 12 parts, lithium hydroxide 5 parts, boric acid 3 parts, sulphosalicylic acid 2 parts and pentanoic 2 parts.
The preparation method of vibroshock special grease of the present invention, is characterized in that comprising following synthesis step:
(1) by the C of 10-15 weight part
12-C
22the base oil of hydroxy fatty acid and 20-35 weight part joins in saponification still, heats up after lipid acid dissolves gradually, starts and stirs;
(2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 2-5 weight part, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still;
(3) water of the boric acid of 1-5 weight part by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature;
(4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds base oil constant temperature 30 min of 45-50 weight part when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 1-3 weight part, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state;
(5), after constant temperature terminates, stir the antioxidant adding 1-3 weight part when being cooled to 180 DEG C, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
The preparation method of vibroshock special grease of the present invention, is characterized in that comprising following synthesis step:
(1) ten dihydroxystearic acids of 12 weight parts and the mineral oil of 25 weight parts are joined in saponification still, heat up after lipid acid dissolves gradually, start and stir;
(2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 5 weight parts, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still;
(3) water of the boric acid of 3 weight parts by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature;
(4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds mineral oil constant temperature 30 min of 45 weight parts when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 2 weight parts, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state;
(5), after constant temperature terminates, stir the pentanoic adding 2 weight parts when being cooled to 180 DEG C, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
The application of vibroshock special grease of the present invention in vibroshock.
Vibroshock special grease of the present invention than with lubricator more high temperature resistant, the more water resistant pouring of traditional shock absorber in the market, more anti-extreme pressure, have more the novel lubricating grease of oilness, the reasonable ratio of each raw material in preparation method, production technique is advanced, with low cost, produce substantially pollution-free problem in the process of vibroshock special grease, and effectively can reduce selling price, reduce the pollution to environment simultaneously.
Embodiment
Vibroshock special grease of the present invention and preparation method thereof will further describe by following examples.
Embodiment 1
(1) ten dihydroxystearic acids of 12 weight parts and the mineral oil of 25 weight parts are joined in saponification still, heat up after lipid acid dissolves gradually, start and stir;
(2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 5 weight parts, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still;
(3) water of the boric acid of 3 weight parts by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature;
(4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds mineral oil constant temperature 30 min of 45 weight parts when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 2 weight parts, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state;
(5), after constant temperature terminates, stir the pentanoic adding 2 weight parts when being cooled to 180 DEG C, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
Embodiment 2
(1) 18 hydroxy fatty acids of 15 weight parts and the synthetic oil of 20 weight parts are joined in saponification still, heat up after lipid acid dissolves gradually, start and stir;
(2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 2 weight parts, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still;
(3) water of the boric acid of 5 weight parts by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature;
(4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds synthetic oil constant temperature 30 min of 45 weight parts when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 3 weight parts, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state;
(5), after constant temperature terminates, stir the phenyl-a-naphthylamine adding 1 weight part when being cooled to 180 DEG C, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
Embodiment 3
(1) 20 dihydroxyl lipid acid of 10 weight parts and the silicone oil of 35 weight parts are joined in saponification still, heat up after lipid acid dissolves gradually, start and stir;
(2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 5 weight parts, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still;
(3) water of the boric acid of 1 weight part by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature;
(4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds silicone oil constant temperature 30 min of 50 weight parts when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 1 weight part, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state;
(5), after constant temperature terminates, stir 2, the 6-toluene di-tert-butyl phenols adding 3 weight parts when being cooled to 180 DEG C, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
Embodiment 4
(1) ten dihydroxystearic acids of 10 weight parts and the mineral oil of 25 weight parts are joined in saponification still, heat up after lipid acid dissolves gradually, start and stir;
(2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 5 weight parts, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still;
(3) water of the boric acid of 3 weight parts by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature;
(4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds mineral oil constant temperature 30 min of 57 weight parts when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 2 weight parts, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state;
(5), after constant temperature terminates, stir the Phenyl beta naphthylamine adding 2 weight parts when being cooled to 180 DEG C, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
Embodiment 5
(1) ten dihydroxystearic acids of 12 weight parts and the mineral oil of 25 weight parts and the mixture of synthetic oil are joined in saponification still, heat up after lipid acid dissolves gradually, start and stir;
(2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 5 weight parts, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still;
(3) water of the boric acid of 3 weight parts by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature;
(4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds the mineral oil of 45 weight parts and mixture constant temperature 30 min of synthetic oil when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 2 weight parts, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state;
(5), after constant temperature terminates, stir the pentanoic adding 2 weight parts when being cooled to 180 DEG C, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
Embodiment 6
(1) ten dihydroxystearic acids of 12 weight parts and the mineral oil of 25 weight parts are joined in saponification still, heat up after lipid acid dissolves gradually, start and stir;
(2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 5 weight parts, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still;
(3) water of the boric acid of 3 weight parts by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature;
(4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds mineral oil constant temperature 30 min of 45 weight parts when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 2 weight parts, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state;
(5), after constant temperature terminates, stir when being cooled to 180 DEG C and add the pentanoic of 2 weight parts and the mixture of Phenyl beta naphthylamine, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
Embodiment above describes ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; under the scope not departing from the principle of the invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the scope of protection of the invention.
Claims (5)
1. a vibroshock special grease, it is characterized in that being prepared from by the raw material of following weight part: base oil 65-85 part, C
12-C
22hydroxy fatty acid 10-15 part, lithium hydroxide 2-5 part, boric acid 1-5 part, antioxidant 1-3 part and sulphosalicylic acid 1-3 part, described base oil is one or more the mixture in mineral oil, synthetic oil and silicone oil, described antioxidant is pentanoic, phenyl-a-naphthylamine, Phenyl beta naphthylamine and 2, one or more mixture in 6-toluene di-tert-butyl phenol, is prepared by following methods and obtains: (1) is by the C of 10-15 weight part
12-C
22the base oil of hydroxy fatty acid and 20-35 weight part joins in saponification still, heats up after lipid acid dissolves gradually, starts and stirs; (2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 2-5 weight part, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still; (3) water of the boric acid of 1-5 weight part by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature; (4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds base oil constant temperature 30 min of 45-50 weight part when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 1-3 weight part, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state; (5), after constant temperature terminates, stir the antioxidant adding 1-3 weight part when being cooled to 180 DEG C, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
2. vibroshock special grease according to claim 1, is characterized in that: described C
12-C
22hydroxy fatty acid is ten dihydroxystearic acids.
3. vibroshock special grease according to claim 1, is characterized in that: described vibroshock special grease is prepared from by the raw material of following weight part: 70 parts, mineral oil, ten dihydroxystearic acid 12 parts, lithium hydroxide 5 parts, boric acid 3 parts, sulphosalicylic acid 2 parts and pentanoic 2 parts.
4. a preparation method for vibroshock special grease, is characterized in that comprising following synthesis step:
(1) ten dihydroxystearic acids of 12 weight parts and the mineral oil of 25 weight parts are joined in saponification still, heat up after lipid acid dissolves gradually, start and stir;
(2) by the aqueous solution of formation lithium hydroxide soluble in water for the lithium hydroxide of 5 weight parts, when the temperature of the mixing solutions in step (1) rises to 50-60 DEG C, the aqueous solution of lithium hydroxide is joined in saponification still;
(3) water of the boric acid of 3 weight parts by 4 times of boric acid quality is diluted, and be heated to the hydrothermal solution that 95 DEG C form boric acid, add the hydrothermal solution of boric acid after the mixing solutions of step (2) is stirred 20 min, continue to calorify saponification reaction 2-4 h at 90-92 DEG C of temperature;
(4) after saponification reaction completes, continue to stir the dehydration that heats up, temperature adds mineral oil constant temperature 30 min of 45 weight parts when reaching 150-160 DEG C, temperature rises to sulphosalicylic acid constant temperature 10 min that 190 DEG C add 2 weight parts, continue to be warming up to 215-220 DEG C of constant temperature 15 min, make contents in still be true solution state;
(5), after constant temperature terminates, stir the pentanoic adding 2 weight parts when being cooled to 180 DEG C, after stirring, product is all transferred to compounding kettle, cools, grind, filter, refine into vibroshock special grease.
5. the application of vibroshock special grease according to claim 1 in vibroshock.
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| CN201310292962.4A CN103351913B (en) | 2013-07-12 | 2013-07-12 | Special lubricating grease for shock absorber as well as preparation method and application thereof |
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| CN201310292962.4A CN103351913B (en) | 2013-07-12 | 2013-07-12 | Special lubricating grease for shock absorber as well as preparation method and application thereof |
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| CN103351913B true CN103351913B (en) | 2015-04-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104312661A (en) * | 2014-10-16 | 2015-01-28 | 新乡市恒星化工有限责任公司 | Copper-based anti-occlusion high-temperature threaded sealing lubricating grease and preparation method thereof |
| CN104629870A (en) * | 2015-02-16 | 2015-05-20 | 新乡市恒星化工有限责任公司 | Lithium complex lubricating grease and preparation method thereof |
| CN105087126A (en) * | 2015-09-06 | 2015-11-25 | 新乡市恒星化工有限责任公司 | Preparation method of special lubricating grease for train brake cylinder |
| CN106675706A (en) * | 2016-12-12 | 2017-05-17 | 新乡市恒星科技有限责任公司 | Heavy-duty exposed gear lubricating grease for steel ball coal mill and preparation method of heavy-duty exposed gear lubricating grease |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1518332A (en) * | 1974-05-24 | 1978-07-19 | Texaco Ag | Lithium soap lubricating grease |
| EP0096919A2 (en) * | 1982-06-14 | 1983-12-28 | Shell Internationale Researchmaatschappij B.V. | High dropping-point lithium-complex grease composition having improved extreme pressure properties |
| CN102167991A (en) * | 2010-02-26 | 2011-08-31 | 中国石油化工股份有限公司 | Lubricating grease composition applicable to high-temperature, high-speed and heavy-load conditions and preparation method thereof |
-
2013
- 2013-07-12 CN CN201310292962.4A patent/CN103351913B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1518332A (en) * | 1974-05-24 | 1978-07-19 | Texaco Ag | Lithium soap lubricating grease |
| EP0096919A2 (en) * | 1982-06-14 | 1983-12-28 | Shell Internationale Researchmaatschappij B.V. | High dropping-point lithium-complex grease composition having improved extreme pressure properties |
| CN102167991A (en) * | 2010-02-26 | 2011-08-31 | 中国石油化工股份有限公司 | Lubricating grease composition applicable to high-temperature, high-speed and heavy-load conditions and preparation method thereof |
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Address after: 453000, Xinxiang Industrial Park, Henan province by the eight road Patentee after: XINXIANG HENGXING TECHNOLOGY CO., LTD. Address before: 453000, Xinxiang Industrial Park, Henan province by the eight road Patentee before: Xinxiangshi Hengxing Huagong Co., Ltd. |