CN103540922A - Self-lubricating treating fluid for surface treatment of automobile clutch and preparation method thereof - Google Patents
Self-lubricating treating fluid for surface treatment of automobile clutch and preparation method thereof Download PDFInfo
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- CN103540922A CN103540922A CN201310454531.3A CN201310454531A CN103540922A CN 103540922 A CN103540922 A CN 103540922A CN 201310454531 A CN201310454531 A CN 201310454531A CN 103540922 A CN103540922 A CN 103540922A
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Abstract
The invention discloses a self-lubricating treating fluid for surface treatment of an automobile clutch. The self-lubricating treating fluid for the surface treatment of the automobile clutch is formed by mixing a fluid A and a fluid B, and the mixed self-lubricating treating fluid comprises the following components by weight percent: 2-5% of phosphating ingredients, 2-5% of modified molybdenum disulfide and the balance of deionized water, wherein the fluid A is water-based molybdenum disulfide obtained by modifying molybdenum disulfide by adopting silicane; the fluid B is a phosphating solution prepared by adopting the phosphating ingredients, and the phosphating ingredients comprise sodium molybdate, manganese nitrate, zinc oxide, phosphoric acid, tartaric acid, nickel nitrate and ferrous nitrate. The prepared self-lubricating treating fluid can improve basic antifriction performance, especially tribology performance of a friction plate, while the coating requirement is met, and water is taken as a solvent in a molybdenum disulfide modification process, so that environmental pollution and potential safety hazard which are caused by use of an organic solvent are reduced; meanwhile, nitrate content in the phosphating ingredients is low, environmental harm is less, and determination of free acid and total acid does not need to be carried out on the treating fluid regularly.
Description
Technical field
The present invention relates to a kind of surface treatment liquid with self-lubricating function, relate in particular to a kind of for automobile clutch surface-treated surface treatment liquid.
Background technology
Clutch coupling is mounted in
enginewith
variatorbetween directly and total member of contacting of engine, with engine
bent axleflywheel group be installed together, be between engine and automotive transmission, to cut off and the parts of transferring power.
Self-lubricating coat in use be take metal, pottery or nonmetal be basic constituent element, by adding solid lubricant and some additional constituent elements to be prepared from and to there is certain intensity and the coating of self-lubricating property under certain processing condition.It has the mechanical property of matrix constituent element and the tribological property of solid lubricant concurrently, and excellent combination property is suitablely worked under the special operating mode such as different atmospheric environments, chemical environment, meets the needs of modern science and technology.
Solid self-lubricating composite material is broadly divided into metal matrix, non-metal base and ceramic base three major types by body material type, and wherein metal base class is an important development direction of research field.The tribological property of metal matrix depends primarily on metallic surface solid lubricant film in the mechanical property of metallic substance and friction process and constantly forms and supplementary ability.At present, solid lubrication particulate used mainly contains molybdenumdisulphide, graphite, fluorographite, tetrafluoroethylene etc., and wherein molybdenumdisulphide is important
solid lubricant.Molybdenumdisulphide is a class lamellar structure compound, and molecular linkage very easily separates a little less than between layers, so molybdenumdisulphide has good lubricity.Molybdenumdisulphide is after chemical purification, to be changed molecular structure and made solid powder by natural concentrated molybdenum ore powder, has diamagnetism, high temperature high voltage resistant, the characteristic such as non-conductive, anti-oxidation, and its pH value shows slightly alkalescence for 7-8.Antifriction when molybdenumdisulphide is low temperature as the major function of friction materials, increases and rubs during high temperature, and loss on ignition is little, volatile in friction materials.
Chinese patent CN201210322612.3 discloses a kind of self-lubricating surface coating composition for low friction or soft substrate application, and wherein said self-lubricating surface coating composition comprises curable acrylates composition.Chinese patent CN201110326884.6 discloses a kind of solid self-lubricating composite material, in the temperature range of room temperature to 600 ℃, all has good lubricity.Chinese patent CN201010241989.7 discloses a kind of high-performance high temperature solid self-lubricating coating and preparation method thereof, the preparation of employing atmospheric plasma spraying technology, can avoid or reduce the wearing and tearing of component in high temperature and high speed running machinery, but above-mentioned patent does not relate to about the relevant self-lubricating property of automobile clutch.And the Phosphating Solution for clutch surface does not all have self-lubricating property at present, makes clutch coupling be subject to certain inhibition in maintenance cost, work-ing life.
Summary of the invention
The present invention wishes, by improving the self-lubricating property of Phosphating Solution, to improve the particularly tribological property of friction plate of clutch coupling, with this, reduces maintenance cost, increases work-ing life.
Therefore, object of the present invention is exactly for prior art above shortcomings, and provides a kind of for automobile clutch surface-treated self-lubrication treatment liquid, in the situation that meeting coating specification, and improve the antifriction performance of matrix, particularly improve the tribological property of friction plate.
Another object of the present invention is to provide the above-mentioned preparation method for automobile clutch surface-treated self-lubrication treatment liquid.
For realizing above-mentioned purpose of the present invention, the present invention by the following technical solutions:
The present invention is a kind of for automobile clutch surface-treated self-lubrication treatment liquid, is to be mixed and formed by A liquid, B liquid, and the weight proportion of mixed self-lubrication treatment liquid is: phosphatization composition 2 ~ 5%, and modification molybdenumdisulphide 2 ~ 5%, all the other are deionized water.
Described A liquid is the water-based molybdenumdisulphide of molybdenumdisulphide after silane modified, and the silane that modification is used is 3-(2,3-epoxy the third oxygen) propyl trimethoxy silicane or 3-(2,3 epoxy the third oxygen) propyl group methyldiethoxysilane.
Described B liquid is Phosphating Solution prepared by phosphatization composition, and composition comprises:
Sodium orthomolybdate 10 ~ 15g/L,
Manganous nitrate 0.1 ~ 0.4g/L,
Zinc oxide 0.8 ~ 1.2g/L,
Phosphatase 11 5 ~ 20g/L,
Tartrate 1 ~ 1.5g/L,
Nickelous nitrate 0.8 ~ 1g./L,
Iron nitrate 2 ~ 2.2g/L.
In described A liquid, silane is 3-(2,3-epoxy the third oxygen) propyl trimethoxy silicane or 3-(2,3 epoxy the third oxygen) proportioning of propyl group methyldiethoxysilane and molybdenumdisulphide is (4 ~ 11): 1, desirable proportioning is (5 ~ 10): 1.
The ideal weight proportioning of mixed self-lubrication treatment liquid is: phosphatization composition 3 ~ 4%, and modification molybdenumdisulphide 2 ~ 3%, all the other are deionized water.
In phosphatization composition of the present invention, nitrate content is low, and environmental hazard is little, without regularly treatment solution being carried out the mensuration of free acid and total acid.
Described molybdenumdisulphide is through 3-(2,3-epoxy the third oxygen) propyl trimethoxy silicane (KH-560) or 3-(2,3-epoxy the third oxygen) the water-based molybdenumdisulphide after propyl group methyldiethoxysilane (KH-563) modification, can fully be dissolved in deionized water.Can not only there is chemical reaction with inorganic mineral surface in silane coupling agent, can also stronger physical entanglement occur with polymkeric substance, effectively improves interfacial property.Silane coupling agent generates silanol groups after hydrolysis, the hydroxyl condensation formation-SiO-M(metal on silanol base and molybdenumdisulphide surface), remaining silanol base reacts each other again generation Si-O-Si and is coated on around molybdenumdisulphide.The described molybdenumdisulphide aqueous solution fully dissolves at suspended particle shape molybdenumdisulphide after abundant stirring, has self lubricity.Described molybdenumdisulphide is sold by market, at the bottom of can playing antifriction and protecting group and the not oxidized effect of other materials.
A kind of preparation method for automobile clutch surface-treated self-lubrication treatment liquid of the present invention adopts following processing step:
The preparation of A liquid: at 25 ~ 40 ℃ of temperature, molybdenumdisulphide is added in reactor, add deionized water to stir, add silane-water solution under whipped state, molybdenumdisulphide is fully contacted with silane, stir and make A liquid.Churning time is 3.5 ~ 5 hours, within after stirring standing 1 day, uses.
The preparation of B liquid: at 25 ~ 40 ℃ of temperature, add deionized water for stirring even phosphoric acid, add successively manganous nitrate, zinc oxide, Iron nitrate, nickelous nitrate, tartrate, Sodium orthomolybdate, stir and make B liquid.Churning time is 25 ~ 40 minutes.
A liquid is slowly added uniformly in the reactor that B liquid is housed and at the uniform velocity stirred, after stirring, obtain preparing the treatment solution of self-lubrication treatment liquid.Churning time is 3 ~ 4 hours, within after stirring standing 1 day, uses.
Evaluating the conversion film performance that self-lubrication treatment liquid of the present invention forms for automobile clutch surface, is mainly that the quality of conversion film after application is evaluated.Evaluation result obtains by following experiment content:
(1) stability for the treatment of solution
Treatment solution is placed under room temperature condition to airtight preservation three months, the state of observation treatment solution.
(2) neutral salt spray test
With reference to GB10125-1997 standard, paint film is carried out to neutral salt spray test.This tests etchant solution used is 5% sodium chloride solution, pH value of solution=7 (± 0.5), spray the temperature inside the box is 35 (± 2) ℃, sinkability is 2mL/ (80cm
2h), sample becomes 30 ° of placements with salt fog frame vertical direction, sprays continuously after 100 hours, observes the width that workpiece surface is drawn the corrosion of fork place.
(3) frictional behaviour test
Adopt HDM-20 type friction and wear tester to test.Test conditions: metal to-metal contact, load 50N, the timed interval is 1 second, speed is 0.136m/s, 23 ℃ of experimental temperatures.The frictional coefficient that record experiment is surveyed.Have certain self-lubricating property, frictional coefficient is generally less than 0.15.
Compared with prior art a kind of advantage for automobile clutch surface-treated self-lubrication treatment liquid and preparation method of the present invention is:
(1) under the acting in conjunction of molybdenumdisulphide and phosphatization composition, clutch surface forms the phosphatize phosphate coat that one deck has self-lubricating property, and this layer of phosphatize phosphate coat can improve the tribological property that clutch coupling, particularly friction plate etc. form member;
(2) silane component can not only make molybdenumdisulphide stably be suspended in Phosphating Solution, simultaneously as the filmogen of clutch surface, can improve the medium corrosion-resistant erosional competency of clutch surface;
(3) silane component does not pollute, can not produce sediment, waste gas environment, has effectively reduced the pollution of Phosphating Solution to environment;
(4) modifying process of molybdenumdisulphide makes water as solvent completely, has reduced environmental pollution and the potential safety hazard with an organic solvent brought.
Embodiment
For describing the present invention, below in conjunction with embodiment, to the present invention is a kind of, for automobile clutch surface-treated self-lubrication treatment liquid and preparation method, be described in further details:
embodiment 1
Self-lubrication treatment liquid is calculated according to 1000g.At 30 ℃ of temperature, in reactor 1, add 80g water, after starting to stir, with the speed of 1g/min, add 18gKH560, uniform stirring is after 30 minutes, with the speed of 0.1g/min, adds 2g molybdenumdisulphide, and uniform stirring 1h makes A liquid.
At 30 ℃ of temperature, in reactor 2, add 870g water, start after stirring, with the speed of 1g./min, add 15g phosphoric acid, then add 1g zinc oxide, uniform stirring 10 minutes, add 10g Sodium orthomolybdate, then add successively 0.8g nickelous nitrate with the speed of 0.1g/min, 0. 2g manganous nitrate, 1g tartrate, 2g Iron nitrate.Stir and within 30 minutes, make B liquid.
A liquid is slowly added uniformly in the reactor that B liquid is housed and at the uniform velocity stirred, stir the treatment solution that obtains preparation after 1 hour.When treatment solution is used, temperature is controlled at 45 ~ 55 ℃, and the reaction times is 3 ~ 5 minutes.
embodiment 2
Self-lubrication treatment liquid is calculated according to 1000g.At 30 ℃ of temperature, in reactor 1, add 78g water, after starting to stir, with the speed of 1g/min, add 20gKH563, uniform stirring is after 30 minutes, with the speed of 0.1g/min, adds 2g molybdenumdisulphide, and uniform stirring is made A liquid for 1 hour.
At 30 ℃ of temperature, in reactor 2, add 860g water, start after stirring, with the speed of 1g./min, add 17g phosphoric acid, then add 2g zinc oxide, uniform stirring 10 minutes, add 12g Sodium orthomolybdate, then add successively 1.8g nickelous nitrate with the speed of 0.1g/min, 1. 2g manganous nitrate, 2.5g tartrate, 3.5g Iron nitrate.Stir and within 30 minutes, make B liquid.
A liquid is slowly added uniformly in the reactor that B liquid is housed and at the uniform velocity stirred, stir the treatment solution that obtains preparation after 1 hour.When treatment solution is used, temperature is controlled at 45 ~ 55 ℃, and the reaction times is 3 ~ 5 minutes.
embodiment 3
Self-lubrication treatment liquid is calculated according to 1000g.At 30 ℃ of temperature, in reactor 1, add 80g water, after starting to stir, with the speed of 1g/min, add 17gKH560, uniform stirring is after 30 minutes, with the speed of 0.1g/min, adds 3g molybdenumdisulphide, and uniform stirring 1h makes A liquid.
At 30 ℃ of temperature, in reactor 2, add 870g water, start after stirring, with the speed of 1g./min, add 15g phosphoric acid, then add 1g zinc oxide, uniform stirring 10 minutes, add 10g Sodium orthomolybdate, then with the speed of 0.1g/min, add successively 0.8g nickelous nitrate, 0.2g manganous nitrate, 1g tartrate, 2g Iron nitrate.Stir and within 30 minutes, make B liquid.
A liquid is slowly added uniformly in the reactor that B liquid is housed and at the uniform velocity stirred, stir the treatment solution that obtains preparation after 30 minutes.When treatment solution is used, temperature is controlled at 45 ~ 55 ℃, and the reaction times is 3 ~ 5min.
embodiment 4
Self-lubrication treatment liquid is calculated according to 1000g.At 30 ℃ of temperature, in reactor 1, add 70g water, after starting to stir, with the speed of 1g/min, add 25gKH563, uniform stirring is after 30 minutes, with the speed of 0.1g/min, adds 5g molybdenumdisulphide, and uniform stirring is made A liquid for 30 minutes.
At 30 ℃ of temperature, in reactor 2, add 860g water, start after stirring, with the speed of 1g./min, add 17g phosphoric acid, then add 2g zinc oxide, uniform stirring 10 minutes, add 12g Sodium orthomolybdate, then with the speed of 0.1g/min, add successively 1.8g nickelous nitrate, 1.2g manganous nitrate, 2.5g tartrate, 3.5g Iron nitrate.Stir and within 30 minutes, make B liquid.
A liquid is slowly added uniformly in the reactor that B liquid is housed and at the uniform velocity stirred, stir the treatment solution that obtains preparation after 30 minutes.When treatment solution is used, temperature is controlled at 45 ~ 55 ℃, and the reaction times is 3 ~ 5 minutes.
Table 1 self-lubrication treatment liquid the performance test results
| ? | Treatment solution stability | Salt mist experiment | Frictional coefficient |
| Embodiment 1 | Place 3 months without precipitation | Within 100 hours, salt fog corrosion width is 2mm | 0.15~0.2 |
| Embodiment 2 | Place 3 months without precipitation | Within 100 hours, salt fog corrosion width is 2mm | 0.15~0.2 |
| Embodiment 3 | Place 3 months without precipitation | Within 100 hours, salt fog corrosion width is 1.5mm | 0.15~0.2 |
| Embodiment 4 | Place 3 months without precipitation | Within 100 hours, salt fog corrosion width is 2mm | 0.15~0.2 |
Claims (5)
1. one kind for automobile clutch surface-treated self-lubrication treatment liquid, it is characterized in that: it is to be mixed and formed by A liquid, B liquid, the weight proportion of mixed self-lubrication treatment liquid is: phosphatization composition 2 ~ 5%, and modification molybdenumdisulphide 2 ~ 5%, all the other are deionized water;
Described A liquid is the water-based molybdenumdisulphide of molybdenumdisulphide after silane modified, and the silane that modification is used is 3-(2,3-epoxy the third oxygen) propyl trimethoxy silicane or 3-(2,3 epoxy the third oxygen) propyl group methyldiethoxysilane;
Described B liquid is Phosphating Solution prepared by phosphatization composition, and composition comprises:
Sodium orthomolybdate 10 ~ 15g/L,
Manganous nitrate 0.1 ~ 0.4g/L,
Zinc oxide 0.8 ~ 1.2g/L,
Phosphatase 11 5 ~ 20g/L,
Tartrate 1 ~ 1.5g/L,
Nickelous nitrate 0.8 ~ 1g./L,
Iron nitrate 2 ~ 2.2g/L.
2. as claimed in claim 1 a kind of for automobile clutch surface-treated self-lubrication treatment liquid, it is characterized in that: in described A liquid, silane is 3-(2,3-epoxy the third oxygen) propyl trimethoxy silicane or 3-(2,3 epoxy the third oxygen) proportioning of propyl group methyldiethoxysilane and molybdenumdisulphide is (4 ~ 11): 1.
3. as claimed in claim 2 a kind of for automobile clutch surface-treated self-lubrication treatment liquid, it is characterized in that: in described A liquid, silane is 3-(2,3-epoxy the third oxygen) propyl trimethoxy silicane or 3-(2,3 epoxy the third oxygen) proportioning of propyl group methyldiethoxysilane and molybdenumdisulphide is (5 ~ 10): 1.
4. a kind of for automobile clutch surface-treated self-lubrication treatment liquid as described in claim 1,2 or 3, it is characterized in that: the weight proportion of mixed self-lubrication treatment liquid is: phosphatization composition 3 ~ 4%, modification molybdenumdisulphide 2 ~ 3%, all the other are deionized water.
5. a kind of preparation method for automobile clutch surface-treated self-lubrication treatment liquid as described in claim 1,2,3, is characterized in that adopting following processing step:
The preparation of A liquid: at 25 ~ 40 ℃ of temperature, molybdenumdisulphide is added in reactor, add deionized water to stir, add silane-water solution under whipped state, molybdenumdisulphide is fully contacted with silane, stir and make A liquid;
The preparation of B liquid: at 25 ~ 40 ℃ of temperature, add deionized water for stirring even phosphoric acid, add successively manganous nitrate, zinc oxide, Iron nitrate, nickelous nitrate, tartrate, Sodium orthomolybdate, stir and make B liquid;
A liquid is slowly added uniformly in the reactor that B liquid is housed and at the uniform velocity stirred, after stirring, obtain preparing the treatment solution of self-lubrication treatment liquid.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114499A (en) * | 2015-09-01 | 2015-12-02 | 中南大学 | Preparation method of molybdenum disulfide coating of brake pad for high-speed train |
| CN107699880A (en) * | 2017-09-28 | 2018-02-16 | 荆门市拓达科技有限公司 | Die casting aluminium chrome-free phosphating agent and preparation method thereof |
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| CN103289569A (en) * | 2013-05-09 | 2013-09-11 | 安徽工业大学 | Self-lubricating passivation solution and hot galvanizing self-lubricating coating steel sheet coated thereby |
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2013
- 2013-09-29 CN CN201310454531.3A patent/CN103540922B/en not_active Expired - Fee Related
Patent Citations (7)
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|---|---|---|---|---|
| JPS60124433A (en) * | 1983-12-07 | 1985-07-03 | Mitsubishi Heavy Ind Ltd | Oil lubrication treating method of forging stock |
| JPH01219170A (en) * | 1988-02-26 | 1989-09-01 | Nippon Parkerizing Co Ltd | Reactive lubricating liquid |
| US20050176592A1 (en) * | 2004-02-11 | 2005-08-11 | Tenaris Ag | Method of using intrinsically conductive polymers with inherent lubricating properties, and a composition having an intrinsically conductive polymer, for protecting metal surfaces from galling and corrosion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114499A (en) * | 2015-09-01 | 2015-12-02 | 中南大学 | Preparation method of molybdenum disulfide coating of brake pad for high-speed train |
| CN107699880A (en) * | 2017-09-28 | 2018-02-16 | 荆门市拓达科技有限公司 | Die casting aluminium chrome-free phosphating agent and preparation method thereof |
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