CN105567388A - Wheel-rail lubricating composite material - Google Patents
Wheel-rail lubricating composite material Download PDFInfo
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- CN105567388A CN105567388A CN201410558443.2A CN201410558443A CN105567388A CN 105567388 A CN105567388 A CN 105567388A CN 201410558443 A CN201410558443 A CN 201410558443A CN 105567388 A CN105567388 A CN 105567388A
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- wheel
- rail
- lubricating composite
- composite material
- rail lubricating
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Abstract
The invention discloses a wheel-rail lubricating composite material. The material takes solid paraffin as a carrier and comprises graphite, molybdenum disulfide and other solid lubricants as well as a strength improving agent, extreme pressure anti-friction agent sulfide, an organophosphorus compound, an organothiophosphorus compound, polyolefin and the like. The wheel-rail lubricating composite material which is good in comprehensive performance, particularly high in carrying capacity and simple and convenient to coat is prepared by utilizing simple mixed heating and forming.
Description
The invention belongs to a kind of wheel-rail lubricating composite, it is the wheel-rail lubrication between liquid lubrication and solid lubricant film.
Implement railway track and wheel hub lubrication and not only can save the energy, be also beneficial to the work-ing life extending rail and wheel, more and more cause the attention of various countries.
This is very complicated to the working conditions of fastness for wheel and rail: require on the one hand the sliding friction of wheel rim and rail side little as much as possible namely require good lubrication be beneficial to energy-conservation with extend wheel track work-ing life; Require that again namely the rolling resistance of wheel tread and rail level does not allow to lubricate as much as possible greatly simultaneously, otherwise the serious consequences such as traction inefficacy, brake failure can be caused.Therefore, wheel-rail lubricating except custom requirements, also specially requires its coated weight accurate to lubricant, and coating position is accurate.
At present, the wheel-rail lubrication generally adopted is lubricating oil, lubricating grease mainly.This series lubricant agent is actually a kind of liquid oil film lubrication.They are usually in fluid and semi-fluid condition, and require during use that coating unit must have accurate oiling position and be coated with oil mass function accurately, guarantee does not have unnecessary grease and enters Wheel/rail face.For this reason, various countries have done much work, and a series of new and high technologies such as hydrostatic control, computer, sun power have all been used on oiling station.Although said apparatus more complicated, price are high, operation uses inconvenience, can only be used for vehicle-mounted wheel flange lubricating and ground rail lubrication, want to improve wheel-rail lubricating effect further, oiling station must be made easy and vehicular rail lubrication can be implemented.
Occurred a kind of solid lubricant in recent years, it is equipped with various property-modifying additive with the tetrafluoroethylene that self lubricity is excellent especially and filler is made, and when it uses, coating is convenient, is easy to control.But one of maximum characteristic of tetrafluoroethylene is difficult to together with other material adhesive, therefore, be difficult to be attached to and wheel-rail lubricating face form stable lubricant film and the function playing wheel-rail lubrication.
The object of this invention is to provide a kind of wheel-rail lubricating material between liquid film and solid lubricant film, this material, to the strong adhesion of wheel track, can form stable lubricant film, and applies easy, coated weight and position are easy to control, and particularly can implement vehicular rail lubrication.
The object of the present invention is achieved like this: preparation is a kind of makes carrier with paraffin, adds the composite lubricated material of intensity improvement agent, extreme pressure antifriction additive.In solid-state under this material normal temperature, there is stronger sticking power to metal, make the rod of similar wax crayon, lines can be drawn at trackside.When wheel presses through on rail, wheel-rail friction point moment heat-dissipating can reach more than 80 DEG C high temperature, and this is attached to equably on the corresponding position of trackside after making this matrix material melt, and plays wheel-rail lubricating effect.Like this, coating procedure is very simple: rail and lubricant relative movement can realize, and this lubricant can not change due to the speed of a motor vehicle, Vehicular vibration and supply too much or sputtering.Like this, vehicle-mounted rail is applied and becomes simple, do not need to design complex appts especially, traditional vehicle-mounted wheel flange lubricating and ground rail lubrication are become vehicular rail lubrication, and lubricant effect improves greatly.
Concrete Recipe of the present invention is as follows: (weight percentage)
Solid paraffin: (fusing point 5-80 DEG C): 60-90%
Polyolefine: (intermediate molecular weight) 1-10%
Anti-friction composition: 5-30%
Content is important component part of the present invention at the low friction compound of 5-30%, it is the main body of antifriction lubrication, mainly comprises following material: graphite, molybdenumdisulphide, dialkyl dithio Carbamate series (DTC salt), olefine sulfide (T405) or sulfurized fatty, organophosphate, alkyl-thio-phosphate, lead naphthenate etc.Such as, zinc dialkyl dithiophosphate (T20) sulphur phosphorus is for stearylamine salt (T305).
Solid paraffin is the general name of refined white wax, white paraffin (industrial paraffin), yellow wax (common paraffin), ceresine (Microcrystalline Wax), and belong to natural oil series product, normal temperature is solid-state, and when 50-80 DEG C, fusing is in a liquid state.Because chemical stability is good, non-corrosiveness, good with gas chromatography intermiscibility, strong to metal adhesion, be lubricant and good dispersion agent and carrier.The polyolefine adding 1-10% is to improve its structural strength.Graphite is a kind of typical solid lubricant, its molecule stratiform structures shape its have good lubrication, there is not chemical reaction with metallic surface in itself, but forms one deck barrier film in metallic surface.It and metallic surface bonding force are poor, must rely on paraffin and just can give full play to antifriction function as carrier.
Molybdenumdisulphide, sulfurized fatty or olefine sulfide (T405) dialkyl dithio Carbamate series, (DTC salt), this kind of sulfidic material can by rapid adsorption in metallic surface, then by series of physical chemical transformation, form the dystectic iron sulphide sealing coat of one deck in metallic surface, greatly improve the carry load ability of lubricant.
Organophosphate can rapidly and metallic surface act on and generate iron phosphide chemical films, this kind of material is softer, and the pit filling up the microcosmic of metallic surface makes surface smoothing and reaches antifriction function.The advantage that organosulfur phosphorus compound has aforementioned phosphorus compound and sulphur compound concurrently is the composite isolated film that skeleton (hard fulcrum) phosphide fills and leads up pit at metallic surface formation sulfide, reaches more effective friction reducing effect.This kind of material mainly contains zinc dialkyl dithiophosphate (T20), and sulphur phosphorus is for stearylamine salt (T305).
Organometallics, as lead naphthenate and aforementioned DTC salt, in this kind of material, metallic element is in tribo-chemistry process, to produce metallic residue (being generally the soft metals such as lead, antimony, zinc, molybdenum) to be attached to fastness surface and to play barrier film effect, object point still can be had an effect when friction point temperature is very high.
Select the lubricant made by above-mentioned additive to replace lipid lubricant, with very little consumption, identical wheel-rail lubricating effect can be obtained.
In sum, the present invention has excellent tack, under various conditions in rail side film forming, can select wear preventive additive, can improve the anti-friction characteristics of lubricant.Owing to being solid state under this lubricant normal temperature, thus become simple in all many-sides such as storage transport and coatings.
Preparation technology: weigh 60-90 parts of solid paraffins, weigh that 1-10 parts of polyolefins compounds and 5-30 portions of wear preventive additives → join can heat up, in the reactor that stirs or plastic injection equipment → raw material is mixed and heated to 90 DEG C → pour into a mould or be injected into required shape, cooling forming.Namely lubricant of the present invention is obtained.
Embodiment: connect following proportioning and take following raw materials according respectively
1.2.3 tri-kinds of proportioning materials are heated to respectively 90 DEG C of → cooling formings that to stir → pour in Cylinder mould.Namely the composite lubricated material of wheel track bar-shaped of the present invention of three kinds of different ingredients is obtained.Use the e Foerderanlage of similar propelling pencil formula to carry out ring-type friction test, test-results is as follows:
Result proves, compound wheel-rail lubrication of the present invention, has higher carry load ability.
In sum, the invention provides a kind of antifriction quality, tack, load, film good stability free from corrosion wheel-rail lubricating material again, and apply easy, coated weight and position are easy to the excellent wheel-rail lubrication controlled, traditional vehicle-mounted wheel flange lubricating and ground rail lubrication are become vehicular rail lubrication by it, and lubricant effect is improved greatly.
Claims (1)
1. a wheel-rail lubricating composite, is characterized in that: by following substances by weight percentage ratio be made into:
Solid paraffin: (fusing point 50-80 DEG C) 60-90%
Polyolefine: (intermediate molecular weight) 1-10%
Anti-friction composition: 5-30%
Wherein: solid paraffin mainly refers to refined white wax, white paraffin, yellow wax, ceresine etc.;
Anti-friction composition mainly refers to: graphite, molybdenumdisulphide, dialkyl dithio Carbamate (DTC), olefine sulfide (T405) or sulfurized fatty, organophosphate, alkyl-thio-phosphate, lead naphthenate etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410558443.2A CN105567388A (en) | 2014-10-20 | 2014-10-20 | Wheel-rail lubricating composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410558443.2A CN105567388A (en) | 2014-10-20 | 2014-10-20 | Wheel-rail lubricating composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105567388A true CN105567388A (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410558443.2A Pending CN105567388A (en) | 2014-10-20 | 2014-10-20 | Wheel-rail lubricating composite material |
Country Status (1)
| Country | Link |
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| CN (1) | CN105567388A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108410436A (en) * | 2018-03-27 | 2018-08-17 | 中石化江汉石油工程有限公司 | The casing wear prevention agent of pit shaft working solution |
| CN114634837A (en) * | 2022-04-26 | 2022-06-17 | 泰奥星（天津）有限公司 | Track friction reducing agent, preparation method and application thereof |
-
2014
- 2014-10-20 CN CN201410558443.2A patent/CN105567388A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108410436A (en) * | 2018-03-27 | 2018-08-17 | 中石化江汉石油工程有限公司 | The casing wear prevention agent of pit shaft working solution |
| CN114634837A (en) * | 2022-04-26 | 2022-06-17 | 泰奥星（天津）有限公司 | Track friction reducing agent, preparation method and application thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160511 |
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| WD01 | Invention patent application deemed withdrawn after publication |