CN207091838U - A kind of nano ceramic coat insulation rail - Google Patents
A kind of nano ceramic coat insulation rail Download PDFInfo
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- CN207091838U CN207091838U CN201720099490.4U CN201720099490U CN207091838U CN 207091838 U CN207091838 U CN 207091838U CN 201720099490 U CN201720099490 U CN 201720099490U CN 207091838 U CN207091838 U CN 207091838U
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Abstract
It the utility model is related to a kind of nano ceramic coat insulation rail, the surface of the rail (1) includes rail surface (3) and other rail outer surfaces (4), described rail surface (3) refers to be in rolling contact face and adjoining upper surface portion with wheel, other described rail outer surfaces (4) are to include above and below foot and side, web of the rail two sides and rail head top and bottom and side along track longitudinal direction, in the uniform coating nano ceramic insulating coating (2) in other described rail outer surfaces (4).Compared with prior art, the utility model nano ceramic coat insulation rail, which removes, possesses the functions such as high insulaion resistance, anticorrosion, water-fast, ageing-resistant, rub resistance, humidity resistance, resistance to weathering and strong adhesive force；The generation of rail system stray electrical current is inherently eliminated, it is low to avoid electrochemical corrosion, cost.
Description
Technical field
The utility model belongs to technical field of rail traffic, and in particular to a kind of superelevation insulating properties rail system insulation steel
Rail.
Background technology
Track traffic is such as subway, light rail, tramcar, Novel rail transit system, more using direct-current propulsion
System and using rail as reflux line.The electric current overwhelming majority can flow back into power cathode by rail, but also have
Sub-fraction is leaked in railway roadbed and the soil of surrounding from the position of track and ground defective insulation, forms stray electrical current.It is spuious
To communal facility pipeline of the rail and around track in itself and building etc. electrochemical corrosion can occur for the presence of electric current, reduce rail
The service life of road, buried pipeline and building etc..Especially for tramcar track for subway, light rail, rail
Road is fully embedded underground, and the harmfulness of its stray electrical current is even more serious.
Fastener system generally use insulating Design to trapped orbit rail and the rail outside setting to flush type track
The protecting block that insulate and sheath, increase the insulaion resistance between rail and periphery structures；Though the method can effectively increase track
Insulaion resistance, but insulate and can be formed during installation and use between protecting block and sheath and fastener, insulation protecting block and sheath
Gap, this gap are not only answered along rail direction of traffic caused by the discontinuous structure of insulate parts joint and fastener etc.
General labourer's condition causes, and on rail section due to rail car load effect under can be deformed, no matter vertical direction,
Dynamic clearance etc. is produced between the torsional deflection meeting of horizontal direction and rail and insulation protecting block and sheath, in actual motion environment bar
The insulating properties of rail system can not be still kept under part and under moist environment, can not fundamentally solve the miscellaneous of rail system
Dissipate current problems.
After human use's electricity, insulating materials just turns into research topic.In the 1980s, start new F, H level occur
Insulating materials system, polyester-imide, polyamidoimide, polyimides, poly maleimide, polydiphenyl ether etc. are developed in succession
Heat resistance insulated paint, adhesive and film, and modified epoxy, unsaturated polyester (UP), aromatic polyamide paper and its composite
Deng flanker.Electric product temperature classification is promoted to B levels mostly, is opened in the special machines such as metallurgy, crane, locomotive engine
Begin to use new F, H class F insulating material F.The nineties, large-scale independent development F, H class F insulating material F of associated mechanisms, make its performance
It is improved, such as modified diphenyl ether, modified bismaleimide, modified poly ester imide wire coating enamel, polyamidoimide enamel-cover
Line paint, polyimide wire coating enamel, F, H level fiberglass product, high-performance polyimide film, F level epoxy mica tapes etc..
Solvent-free impregnating resin and quick-drying impregnating varnish are developed rapidly, dry mica paper tape, VPI (vacuum pressure impregnation) dipping trees
Fat starts to apply.Heat resistant and wear resistant ceramic insulation coating of new generation, can form one layer in coated article body surface face has higher volumes
Resistivity, at room temperature more than 1012Ω m and high dielectric strength (breakdown strength) are more than 104kV/m.Coating can be born compared with forceful electric power
Without breakdown ceramic coating, the coating has higher mechanical strength and good chemical stability for field, can be ageing-resistant, resistance to
Water, resistant to chemical etching, long-time fire resisting barbecue property, while also there is mechanical resistant impact and thermal shock resistance properties, nano material is most
New opplication, substantially increase engineering insulating properties.
The content of the invention
The purpose of this utility model is exactly can be from basic in order to provide one kind the defects of overcoming above-mentioned prior art to exist
The upper nano ceramic coat insulation rail for solving the problems, such as that rail system stray electrical current, cost are low, performance is good.
The purpose of this utility model can be achieved through the following technical solutions：A kind of nano ceramic coat insulation rail,
The surface of the rail (1) includes rail surface (3) and other rail outer surfaces (4), and described rail surface (3) refers to and wheel
Be in rolling contact face and adjoining upper surface portion, other described rail outer surfaces (4) are to include rail along track longitudinal direction
Above and below pin and side, web of the rail two sides and rail head top and bottom and side, it is characterised in that in other described rail outer surfaces (4)
Uniform coating nano ceramic insulating coating (2), the material of described nano ceramics insulating coating (2) include adhesives, enhancing
Material and activated cured dose.Nano ceramics insulating coating is nano ceramics insulating coating and Rail Surface permanent bond.
The thickness (5) of described nano ceramics insulating coating (2) is between 100-1000 μm.
Described nano ceramics insulating coating (2) is the high insulaion resistance material that resistivity is not less than 10 megohms.
Described nano ceramics insulating coating (2) is commercially available nano ceramics insulating materials, has good mechanical performance, tool
Body includes：Adhesive force is not less than 30cm material not less than 3MPa, abrasion loss no more than 10mg, impact resistance.
Described nano ceramics insulating coating (2) includes adhesives, reinforcing material, the composition such as activated cured dose；It is described
Adhesives be acetal, polyester, modified poly ester, polyurethane, the one or more in polyimides；Described reinforcing material is
One or more in aluminum oxide, carborundum, silicon nitride, silica, magnesia, mica；Described activated cured dose is ten
One or more in dialkyl sulfonates, cetyl trimethylammonium bromide, polyethylene glycol, tween.
Further, the material of nano ceramics insulating coating uses two-component alcohol system ceramic coating model XS-725A/
B (also take in the fresh material Science and Technology Ltd. in Guangzhou), its main component be nano-glass dispersion liquid, silicon nanoscale dispersion base liquid,
Carbon composite, compound alcohol auxiliary agent；Two-component XS-725A and XS-725B in proportion 7:Used after 5 well mixed stirrings.
Described nano ceramics insulating coating (2) is made up of adhesion layer (21) and insulating barrier (22)；Described adhesion layer
(21) Rail Surface is coated in using coating processes, described insulating barrier (22) is at least provided with one layer, and coating processes are coated in viscous
Attached layer (21) surface.
After described adhesion layer (21) is coated in Rail Surface hardening, insulating layer coating (22) is applied on its surface, is applied after hardening
Cover next layer insulating (22)；
The thickness of described adhesion layer (21) is not more than 200 μm, and the thickness of each layer insulating (22) is not more than 200 μm.
Above-mentioned coating processes process includes：
The first step：Rail Surface cleaning process；
Second step：Adhesion layer " coating-hardening " process；
3rd step：Insulating barrier " coating-hardening " process；Or
4th step：Repeat the multiple coating processing of insulating barrier " coating-hardening " process；
Above-mentioned each operation is conventional construction process.
Above-mentioned adhesion layer (21) material is the nano ceramics insulating materials for being at least not less than 3MPa containing bonding adhesive force；Should
Adhesion layer can bond with rail securely, while also can make nano ceramics insulating coating and rail with insulating barrier secure bond
Surface permanent bond.
Above-mentioned insulating barrier (22) material is at least to be not less than 30cm and electricity no more than 10mg, impact resistance containing abrasion loss
Reinforcing material of the resistance rate not less than 10 megohms and the activated cured dose of nano ceramics insulating materials for waiting composition, the material have high
Insulaion resistance and good mechanical performance.
The nano ceramics insulation for meeting adhesion layer (21) and insulating barrier (22) function simultaneously can also be used in practical application
Material realizes adhesion layer (21) and insulating barrier (22) to coat.
Described nano ceramics insulating coating (2) is coated in steel using mechanization or artificial painting method and coating process
On track surface；Described painting method is that spraying or brushing or roller coat or atomization are impregnated with or liquefied and be impregnated with；The process of the coating
It is directly to be handled after last procedure of rail manufacture, or in track laying in-situ processing.
During coating, rail surface (3) is supported or hung by frock (16) and is positioned, using automatic coating machine or artificial brushing
Tool is relatively moved along rail (1), and nano ceramics insulating coating (2) is coated uniformly on to other described rail outer surfaces (4)；Institute
Coating surface is needed once to be coated along rail direction, or segmentation multiple stacking is completed；The frock (16) is mechanical clamp or magnetic
Power rail.
The last surface smoothness of described nano ceramics insulating coating (2) is more than national standard GB/T3505 three-levels, nanometer
Insulating ceramic coating (2) is not more than 100 μm in the thickness difference of Rail Surface.
Compared with prior art, the utility model proposes a kind of nano ceramic coat insulate rail, in rails
High resistivity material of the surface coating resistivity not less than 10 megohms is as insulating coating, the insulation of described nano ceramic coat
Rail is in addition to possessing high insulaion resistance, while its nano ceramic coat possesses anticorrosion, water-fast, ageing-resistant, rub resistance, moisture-proof
The function such as hot, resistance to weathering and strong adhesive force；The generation of rail system stray electrical current is inherently eliminated, avoids electricity
The unfavorable factors such as chemical attack are to harm caused by the communal facility pipeline around track and track and building etc., and nanometer is made pottery
The application of porcelain coating insulation rail can not use the equipment such as rail insulation protecting block and sheath or be no longer required for its high insulating property,
The track insulation resistance ratio of nano ceramic coat of the present utility model insulation rail traditional rail insulation protecting block and sheath scheme
More than 5 times are improved under the conditions of actual application environment, the use of nano ceramic coat insulation rail can greatly simplify track laying work
Skill and reduction track insulation cost, improve track laying efficiency, also simplify and reduce operation maintenance load etc., it is ensured that track is exhausted
Edge performance and efficiency of operation and safety.
Brief description of the drawings
Fig. 1 a are general steel-rail structure schematic diagrames of the present utility model；
Fig. 1 b are groove-shape rail structural representations of the present utility model；
Fig. 2 a are coating layer thickness schematic diagrames of the present utility model；
Fig. 2 b are that Fig. 2 a A-A sectional views are the composition (three layers) of coating of the present utility model；
Fig. 2 c are that Fig. 2 a A-A sectional views are the composition (two layers) of coating of the present utility model；
Fig. 3 is the utility model coating processes flow process of the present utility model；
Fig. 4 a are general rail suspension frock schematic diagrames of the present utility model；
Fig. 4 b are Fig. 4 a side views；
Fig. 4 c are groove-shape rail suspension frock schematic diagrames of the present utility model；
Fig. 4 d are Fig. 4 c side views；
Fig. 5 a are general rail supporting tooling schematic diagrames of the present utility model；
Fig. 5 b are Fig. 5 a side views；
Fig. 5 c are groove-shape rail supporting tooling schematic diagrames of the present utility model；
Fig. 5 d are Fig. 5 c side views；
Fig. 6 a are the general steel-rail structure schematic diagrames of embodiment 4 of the present utility model；
Fig. 6 b are the groove-shape rail structural representations of embodiment 4 of the present utility model；
In figure：
1st, rail；2nd, nano ceramics insulating coating；3rd, rail surface；4th, rail outer surface；5th, thickness；12nd, Rail Surface
Cleaning process；13rd, adhesion layer " coating-hardening " process；14th, insulating barrier " coating-hardening " process；15a, adhesive layer thickness；
15b, thickness of insulating layer；16th, frock；21st, adhesion layer；22nd, insulating barrier.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Figure 1a, a kind of nano ceramics insulation rail, in the surface coating nano ceramic insulation of general rails 1
Coating 2；Nano ceramics insulating coating 2 is equably covered on the surface of rail 1；The surface of rail 1 includes rail surface 3 and its
His rail outer surface 4, rail outer surface 4 are comprising above and below the flange of rail and above and below side, web of the rail two sides and rail head along track longitudinal direction
Face and side；Rail surface 3 is that wheel is in rolling contact face and the wide regions of adjoining upper surface portion 50mm, rail surface
3 not as must coating zone be non-coated, the non-coated of rail 1 is used in coating mounting tool to support or to hang
Rail；(Guangzhou is also using two-component alcohol system ceramic coating model XS-725A/B for the material of nano ceramics insulating coating 2
Take in the fresh material Science and Technology Ltd.), its ceramic coating include adhesives, reinforcing material, activated cured dose etc., its is main
Composition is nano-glass dispersion liquid, silicon nanoscale dispersion base liquid, carbon composite, compound alcohol auxiliary agent；Two-component XS-725A and
XS-725B in proportion 7:Used after 5 well mixed stirrings, 500 revs/min of mixer speed is Celsius in environment temperature 10-40
Degree coating, mixed ceramic coating must use in 8 hours.The nano ceramics insulating coating 2 has high insulated electro
Resistance meets that track eliminates the insulating properties requirement of stray electrical current more than more than 10 megaohms, while has high mechanical performance index：
Adhesive force is not less than 3MPa；Abrasion loss is not more than 10mg；Impact resistance is not less than 30cm.Nano ceramics insulating coating 2 and rail 1
Surface permanent bond.
As shown in Figure 2 a, the gross thickness 5 of the nano ceramics insulating coating 2 of nano ceramics insulation rail 1 is at 400-500 μm
Between, using mechanization or artificial painting method and coating process coated on Rail Surface；Painting method is spraying；Coating
Process be to be carried out in special nano ceramics insulation rail coating workshop.As shown in Fig. 4 a-4b, rail 1 is passed through into frock 16
Absorption suspension, the position for adsorbing suspension does not need the place of coating nano ceramic insulating coating 2 for rail surface 3, without prejudice to receiving
The coating of rice insulating ceramic coating, this suspension are positioned by magnetic force rail by non-coated face rail surface.It is fixed by frock 16
It is coated behind position using mechanization or artificial painting method and coating process.
As shown in Figure 2 b, nano ceramics insulating coating 2 is made up of adhesion layer 21 and dielectric layers 22, is glued in the embodiment
The attached material of layer 21 is identical with the material of insulating barrier 22, is above-mentioned use two-component alcohol system ceramic coating model XS-725A/
B, the material meet adhesion layer 21 and the function of insulating barrier 22 simultaneously.By three times coating processes, its technical process is wrapped as shown in Figure 3
Contain：
The first step：Rail Surface cleaning process 12；
Second step：Adhesion layer " coating-hardening " process 13,100 μm of adhesion layer thickness；
3rd step：Intermediate insulating layer " coating-hardening " process 14,150 μm of intermediate insulating layer thickness；
4th step：Surface insulation layer " coating-hardening " process 14,200 μm of surface insulation layer thickness；
Above-mentioned each operation is process commonly used in the art.
Coating in the coating processes of nano ceramics insulating coating can be moved using automatic coating machine along rail is relatively uniform
Coating, described coating be it is all need coating surface once along rail direction coat, every layer coating after taken the photograph with temperature 100-180
After the baker baking 30-60 minutes of family name's degree or normal temperature carries out lower step coating again after 12 hours.
The last surface smoothness requirements of nano ceramics insulating coating are level Four (national standard GB/T3505), are applied in Rail Surface
Layer thickness difference is not more than 50 μm.
Embodiment 2：
As shown in Figure 1 b, a kind of groove profile nano ceramics insulation rail, in the surface coating nano ceramic of grooved track rail 1
Insulating coating 2；The surface of rail 1 includes rail surface 3 and other rail outer surfaces 4, and nano ceramics insulating coating 2 is equably
It is covered on rail outer surface 4；Rail outer surface 4 is comprising above and below the flange of rail and side, web of the rail two sides and rail along track longitudinal direction
Head top and bottom and side；But rail surface 3 is that wheel is in rolling contact face and the wide regions of adjoining upper surface portion 50mm
Not as must coating zone be non-coated, the non-coated of rail 1 is used in coating mounting tool to support or hang steel
Rail；The material of nano ceramics insulating coating includes adhesives, reinforcing material, the composition such as activated cured dose；Nano ceramics insulate
There is coating 2 high insulaion resistance to meet that track eliminates the insulating properties requirement of stray electrical current more than more than 10 megaohms, have simultaneously
High mechanical performance index：Adhesive force is not less than 3MPa；Abrasion loss is not more than 10mg；Impact resistance is not less than 30cm, nanometer pottery
Porcelain insulating coating and Rail Surface permanent bond.
The gross thickness of the nano ceramics insulating coating of nano ceramics insulation rail 2 is between 200-400 μm, using mechanization
Or artificial painting method and coating process are coated on Rail Surface；Painting method is to brush；The process of coating is in track
Lay in-situ processing.
As shown in Figure 2 c, nano ceramics insulating coating 2 is made up of one layer of layer insulating 22 of adhesion layer 21 and one, is passed through twice
Coating processes coating is completed, and its technical process includes：1) Rail Surface is cleared up；2) adhesion layer " coating-hardening ", adhesion layer thickness
100μm；3) insulating barrier " coating-hardening ", 200 μm of thickness of insulating layer.
The material of adhesion layer 21 and the material of insulating barrier 22 are different commercially available material in the embodiment, each meet following property
Energy：The material of adhesion layer 21 is the commercially available nano ceramics insulating materials for being at least not less than 3MPa containing bonding adhesive force；Insulating barrier 22
Material is not less than the enhancing of 30cm and resistivity not less than 10 megohms at least containing abrasion loss no more than 10mg, impact resistance
The commercially available nano ceramics insulating materials of the compositions such as material and activated cured dose.
The coating processes of nano ceramics insulating coating, as shown in Fig. 4 c- Fig. 4 d, rail 1 is adsorbed into suspension by frock 16,
The position of absorption suspension does not need the place of coating nano ceramic insulating coating 2 for rail surface 3, is insulated without prejudice to nano ceramics
The coating of coating, this suspension are positioned by magnetic force rail by non-coated face rail surface.Machine is used after being positioned by frock 16
Tool or artificial painting method and coating process are coated.
Coating in the coating processes of nano ceramics insulating coating can use the artificial brushing tool that applies to be moved along rail is relatively uniform
Coating, described coating can be that all section point band multiple stackings that need to coat are completed.
Lower step coating is carried out again after 24 hours in normal temperature after every layer of coating.
The last surface smoothness requirements of nano ceramics insulating coating are level Four (national standard GB/T3505), are applied in Rail Surface
Layer thickness difference is not more than 50 μm.
Embodiment 3：
The coating processes of nano ceramics insulating coating, rail is supported using special tooling as shown in Fig. 5 a- Fig. 5 d, it is special
The contact surface of frock 16 and rail 1 without prejudice to nano ceramics insulating coating coating.Remaining is the same as embodiment 1.
Embodiment 4：
As shown in Fig. 6 a-6b, the agent structure of the embodiment is with embodiment 1, in the embodiment, nano ceramics insulating coating
2 can fill whole outer surfaces of whole rail 1, including rail surface and wheel are in rolling contact face.
Above-described is only preferred embodiment of the present utility model.It should be pointed out that the ordinary skill for this area
For personnel, on the premise of the utility model principle is not departed from, the technology that creative work can just be associated is needed not move through
Feature, some variations and modifications can also be made, these changes are obviously regarded as equivalent feature, still fall within of the present utility model
Within protection domain.
Claims (3)
- The rail 1. a kind of nano ceramic coat insulate, the surface of the rail (1) includes rail surface (3) and other rail outer surfaces (4), described rail surface (3) refers to be in rolling contact face and adjoining upper surface portion, other described steel with wheel Rail outer surface (4) is comprising above and below foot and side, web of the rail two sides and rail head top and bottom and side, its feature along track longitudinal direction It is, in the uniform coating nano ceramic insulating coating (2) in other described rail outer surfaces (4)；Described nano ceramics insulating coating (2) is made up of adhesion layer (21) and insulating barrier (22)；Described adhesion layer (21) applies Rail Surface is overlayed on, described insulating barrier (22) is at least provided with one layer, coated in adhesion layer (21) surface；The thickness of described adhesion layer (21) is not more than 200 μm, and the thickness of each layer insulating (22) is not more than 200 μm.
- 2. a kind of nano ceramic coat insulation rail according to claim 1, it is characterised in that described nano ceramics is exhausted The thickness (5) of edge coating (2) is between 100-1000 μm.
- 3. a kind of nano ceramic coat insulation rail according to claim 1, it is characterised in that described nano ceramics is exhausted The last surface smoothness of edge coating (2) is more than national standard GB/T3505 three-levels, and nano ceramics insulating coating (2) is in Rail Surface Thickness difference be not more than 100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720099490.4U CN207091838U (en) | 2017-01-23 | 2017-01-23 | A kind of nano ceramic coat insulation rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720099490.4U CN207091838U (en) | 2017-01-23 | 2017-01-23 | A kind of nano ceramic coat insulation rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207091838U true CN207091838U (en) | 2018-03-13 |
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ID=61547110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720099490.4U Active CN207091838U (en) | 2017-01-23 | 2017-01-23 | A kind of nano ceramic coat insulation rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207091838U (en) |
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2017
- 2017-01-23 CN CN201720099490.4U patent/CN207091838U/en active Active
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