CN107743464A - Rail top coat applicator and its application method - Google Patents

Abstract

There is rail top (TOR) applicator bar (102) in positioning housing (104) and the bizet for being used to delivering friction control composition to rail head on the upper section (102A) of the bar to exit aperture (114).The upper section of the bar is inclined away from the friction control composition and exits aperture.The bar can be made up of the elastomer of such as polyurethane.Path (110) exits aperture described in being extended to from inlet port (112).The friction reduce composition be pumped to it is described enter the mouth, exit aperture and then on the bizet of the rail head through the path to described.It can be thixotroping that the friction, which reduces composition,.

Description

Rail top coat applicator and its application method

This application claims the rights and interests of the following：The U.S. Patent Application Serial Number 62/ that on December 12nd, 2014 submits 124,240, and be the part continuation Shen for the U.S. Patent Application Serial Number 14/655,903 submitted on June 26th, 2015 in addition Please, the United States Patent (USP) is PCT/US14/10188 into thenational phase, and it requires that U.S. for submitting on December 4th, 2013 is special again The rights and interests of sharp patent application serial numbers 61/963,448；The U.S. Patent Application Serial Number 61/962,265 that on November 4th, 2013 submits； The U.S. Patent Application Serial Number 61/958,789 that August in 2013 is submitted on the 6th；On 2 26th, the 2013 United States Patent (USP) Shens submitted Please sequence number 61/850,923；2 months 2013 U.S. Patent Application Serial Numbers 61/850,690 submitted for 21st；With 2013 1 The U.S. Patent Application Serial Number 61/848,596 that the moon is submitted on the 7th, all patents are incorporated herein by reference.

Technical field

This disclosure relates to for delivering friction control composition to the applicator of rail head and using applicator control rail The method of friction between head and train wheel.

Background technology

Sending with the abrasion of the large area of steel wheel and rail for high noise levels is to include shipping, passenger and mass transit train Rail system in common problem.Such issues that be directly be attributed to during the operation of system between wheel and rail head it is raw Into frictional force.In addition to noise problem and the large area of wheel and track are worn, two negative frictions slided between steel surface Slip-stick is caused to vibrate.This then causes poorly efficient and suboptimal performance.

Rubbed for control, putting into practice always apply grease or friction control composition in orbit for a long time, including On side coated in rail head and track.Most it is noted that this based composition has been applied to curved surface, inclined plane, turnout (turnout), track switch (switch) etc..It is optokinetic to improve that friction control composition can decrease or increase friction when necessary Can, and reduce the abrasion on both rail head and train wheel.

For the friction between increase train wheel and track, friction control composition is typically placed on rail head.With It is referred to as rail top (TOR) applicator in the applicator that friction control composition is placed on rail head.In normal practice, TOR coatings Length cycles of the device along slide rail it is spaced.The interval of TOR applicators typically depends on friction control composition and flows down track Ability.Lamentedly, as the TOR compared with the applicator on the side for being placed on track, directly contacted with train wheel Applicator is likely to destruction or damage by train wheel.

TOR applicators, which have been developed for many years, solves this problem.However, this kind of applicator is had been demonstrated due to many reasons It is insufficient.For example, in some prior art applicators, friction control composition typically and is not up to the center of rail head. Therefore, friction control composition can not effectively flow down track.In other cases, because friction control composition finally leaks down Rail head is simultaneously left in the side of track, so substantial amounts of friction control composition is wasted.In other cases, although prior art TOR applicators friction control composition is placed on rail head, but applicator from when being collided by train wheel because punching Hit and destroy or damage.Therefore, this kind of TOR applicators of prior art become inoperable because of impact failure.

Need friction control composition being effectively placed on rail head with so that friction control composition effectively flows down The TOR applicators of rail.In addition, this kind of TOR applicators are needed to be comparatively safe in order to avoid destroyed because of the impact of train wheel Or damage.

It should be understood that being merely to illustrate property purpose discussed above is provided and is not intended to limit appended claims or any The scope or theme of claims of related application or patent.Therefore, appended claims or any related application Or claims of patent should not all be limited by being discussed above, or merely due to herein to each of features described above or shortcoming or Any feature or referring to for shortcoming and be construed to be directed to, include or exclude the feature or shortcoming.

The content of the invention

In the embodiment of the disclosure, there is provided for delivering friction control composition to the applicator of rail head.The painting Applicator is made up of the following：Housing, the bar being positioned in the housing and on the upper section of the bar be used for deliver institute The bizet for stating friction control composition to the rail head exits aperture.

In the another embodiment of the disclosure, there is provided for delivering friction control composition to the applicator of rail head.Institute Applicator is stated to be made up of the following：Housing, the elastic body rod being positioned in the housing, for pumping the friction control group Inlet port in compound to path and exit mouth to the rail head for pumping the friction control composition.

In the another embodiment of the disclosure, there is provided for delivering friction control composition to the applicator of rail head.Institute Applicator is stated to be made up of the following：Housing, the bar being positioned in the housing, it is used to feed on the low portion on slope The friction control composition is used for from the access delivery institute to the inlet port in path and on the upper section of the bar The bizet for stating friction control composition to the rail head exits aperture.The upper section of the bar is inclined away from described rub Wipe control composition and exit aperture.In embodiments, the upper section of the bar is between about 5 degree to about 15 degree Angle tilt exports away from the friction control composition.The coating device assembly also contains the basal surface for the housing Platform, fixture and leveller for being attached to the applicator by the platform on the rail head.

In the another embodiment of the disclosure, there is provided for delivering friction control composition to the applicator group of rail head Part.The coating device assembly includes applicator, and the applicator is made up of the following：Housing, it is positioned in the housing Bar and it is used to deliver the bizet of the friction control composition to the rail head on the upper section of the bar and exits aperture. The coating device assembly also contain the basal surface for the housing platform, for by the platform by the applicator The fixture and leveller being attached on the rail head.

In the another embodiment of the disclosure, there is provided for delivering friction control composition to the applicator group of rail head Part；The coating device assembly includes：Housing, the elastic body rod being positioned in the housing, for pumping the friction control group Inlet port in compound to path and exit mouth to the rail head for pumping the friction control composition.The painting Applicator component further contains：Platform, the basal surface placement of the housing is on the platform；Leveller, the leveller are attached It is connected to the platform；And fixture, the fixture are attached to the platform and are used to the coating device assembly being attached to the rail head On.

In the another embodiment of the disclosure, there is provided for delivering friction control composition to the applicator group of rail head Part.The coating device assembly includes applicator, and the applicator is made up of the following：Housing, it is positioned in the housing Bar, on the low portion on slope be used for feed the friction control composition to the inlet port in path and in the bar Be used for the bizet from friction control composition described in the access delivery to the rail head on upper section exits aperture.It is described Apply device assembly and also contain the platform for the basal surface for being used for the housing, for coupling the applicator by the platform Fixture and leveller on to the rail head.

In another embodiment, there is provided using on coating device assembly delivering friction control composition to the bizet of rail head Method.The coating device assembly is made up of applicator and fixture.The applicator is made up of the following：Housing, it is positioned at institute State the bar in housing and the friction control composition on the upper section of the bar exits aperture.The upper portion of the bar Point being inclined away from the friction control composition exits aperture.In embodiments, the upper section of the bar is with about 5 The angle tilt spent between about 15 degree exports away from the friction control composition.The platform is attached to rail by the fixture On the rail head in road.In the process, the friction control composition is pumped through the aperture of exiting to the rail head On the bizet.

In the another embodiment of the disclosure, there is provided deliver friction control composition to rail head using coating device assembly Method on bizet.The coating device assembly is made up of applicator and fixture.The applicator is made up of the following：Housing, The bar being positioned in the housing and the friction control composition on the upper section of the bar exit aperture.The applicator The bar have for the friction control composition inlet port.In addition, the applicator has from the friction control Composition inlet port to the friction control composition exits the path for being used to convey the friction control composition in aperture.Institute The upper section for stating bar is inclined away from the friction control composition and exits aperture.In embodiments, the institute of the bar Upper section is stated to export away from the friction control composition with the angle tilt between about 5 degree to about 15 degree.The fixture The platform is attached on the rail head of track.In the process, the friction control composition is pumped and moved back through described Go out aperture to the bizet of the rail head.In the process, the friction control composition is pumped and moved back through described Go out aperture to the bizet of the rail head.

Therefore, the disclosure includes being considered as allowing it that friction control composition is most effectively placed to feature in orbit And advantage.

Brief description of the drawings

Figures below is the part of this specification, and the schema is included to certain for the various embodiments for illustrating the disclosure Referred in a little aspects and detailed description herein：

Fig. 1 is attached to the front perspective view of rail top (TOR) the coating device assembly of the side of track.

Fig. 2 is the side view of TOR coating device assemblies and illustrates the interaction of TOR applicators and train wheel.

Fig. 3 is the top perspective of TOP coating device assemblies.

Fig. 4 is the cross-sectional front view of TOP coating device assemblies.

Fig. 5 is the cross sectional side view of TOP applicators, illustrates the bizet for friction control composition to be fed to rail head On path.

Embodiment

The characteristic and advantage and other features and benefit of the disclosure will consider the exemplary of the disclosure It is apparent to those skilled in the art during described below and refer to the attached drawing.It should be understood that the sheet with exemplary Description and accompanying drawing in text are not limiting as this patent or require any patents or patent applications of the priority of this patent Claim.On the contrary, it is intended to cover fall within all modifications, equivalent and the replacement in the spirit and scope of claims Thing.Particular disclosed herein and details can be made a change without departing from such spirit and scope.

In the preferred embodiment in showing and describing accompanying drawing, common or similar component is with similar or same reference numbers Come quote and according to schema and/or it is herein be described as it is obvious.Schema is not necessarily drawn to scale, and schema is some Feature and some views can be exaggerated in ratio to be shown or schematically illustrates, with up to clear and concise purpose.

Each several part (and title) as used herein and through present patent application, term " disclosure ", " disclosure " and Its version is not intended to refer to each possible embodiment covered by the disclosure or any specific rights requirement.Therefore, often The theme of one such bibliography be not construed as merely due to such bibliography and to each reality of the bibliography It is required to apply scheme or any specific rights requirement or part thereof.

Between term " connection " as used herein and in the dependent claims etc. and its version refer to Connect or be directly connected to or engage.Therefore, if first device is attached to second device, then connection can by be directly connected to or by Other devices and connect through and be indirectly connected with realizing.

Some terms are herein and in appended claims using referring to particular elements.Such as those skilled in the art Member it will be appreciated that, title that different people can be different refers to part.Such record is not intended to non-functional not in title Made a distinction between same part.

In addition, term " including (including) " and " including (comprising) " are herein and appended claims With open use in book, and it therefore should be interpreted that and mean " including but is not limited to ... ".In addition, herein and appended right The disclosure or appended claims need not be limited to by only one with reference of the odd number meaning to each part and aspect in claim Such part or aspect, but should usually be construed to mean one or more, as that can be being adapted in each particular instance With it is desirable.

Therefore the preferred embodiment of the disclosure provides the advantages of exceeding prior art and is well adapted for carrying out the disclosure One or more targets.However, the disclosure does not need each part described above and acts and be never limited to above-mentioned reality Apply scheme or operating method.Any one or more of part, feature and process above can be used in any suitable configuration, and It is not required to include other such part, feature and processes.Not yet clearly stated but according to this in addition, the disclosure is included herein Text description, drawings and claims and other features, ability, function, method, purposes and should obvious or will be apparent With.

Rail top coat applicator (TOR) disclosed herein can be used for delivering friction control composition (or lubricant) to rail head, most It is the bizet for being delivered to rail head to be worth noting.When TOR applicators are attached to rail head, TOR applicators are less likely by train car Wheel destroys.Thus, friction control composition more effectively flows down the top of rail head.

Fig. 1 is front perspective view, illustrates the TOR coating device assemblies for the side for being attached to track.TOR coatings device assembly contains TOR applicators.TOR applicators include bar, housing and optional platform and/or seal, as described herein.Fig. 2 is side view Illustrate the interaction of TOR coating device assemblies and train wheel.Fig. 3 is the top perspective of TOP coating device assemblies.Fig. 4 is TOP Apply the cross-sectional front view of device assembly.

As illustrated, TOR, which applies device assembly 100, includes TOR applicators.TOR applicators contain bar 102.Bar 102 can pacify Put in rod shell 104.Rod shell 104 may be characterized as having antetheca 104A (when being attached to track towards the outfield of track Side), side wall 104B, rear wall 104C and base wall 104D.As exemplified in figure 1, bar 102 can be placed on housing to cause bar Docked with base wall 104D inner surface end.Bar 102 can be used as snap-fit, bolt, screw, nail, sticker, This kind of conventional fastener such as Velcro come be releasably attached to base wall 104D inner surface and from the inner surface releasedly Attachment.

Because bar 102 is placed in the inside of housing 104 and can be releasedly attached, it can easily be replaced.Cause This, when bar 102 is due to wear and tearing and destroying, damaging or otherwise becoming poorly efficient, can remove it and using newly Bar change.Bar 102 can utilize mechanical fastener or self-tapping screw to be releasably attached to rod shell 104.

As shown in figure 1, in embodiments, rod shell 104 can not have top wall so that bar can simply be still in shell In body, the upper surface of bar is exposed to environment.It is this to be disposed with beneficial to the bar changed abrasion with new bar or destroyed.

In an alternate embodiment, bar can be integrally formed with housing.

In some cases, the antetheca 104A and side wall 104B (as illustrated in fig. 2) of rod shell 104 can be less than bar 102 Upper surface and housing 104 rear wall 104C.When being attached to rail head 108, this is arranged such that the wheel 107 of train compared with can not It can impact and destroy housing and bar.Strategically bar is positioned to allow rod shell 104 and bar 102 to be resistant to and come from less than rail head 108 The impact such as since the false flange of the train wheel of serious wear of train wheel.

In Fig. 4 in shown preferred embodiment, the upper surface 102A of bar 102, which is inclined such that to work as, is attached to rail head 108, the upper surface of bar is inclined away from rail head 108.Such tilt down for the TOR applicators of prior art is improper 's.In the TOR applications of prior art, when TOR applicators are attached to track, bar tilts towards rail head.In such cases, TOR applicators are designed to form reservoir to keep lubricant or friction modifiers to be on the top of track, be particularly in rail On first 108 bizet 106.This series lubricant agent or friction control composition are than those disclosed herein lubricant or friction control group Compound viscosity is much smaller.This inclination of bar towards rail head causes the bar of the TOR applicators of prior art more likely by train car Wheel destroys.

In preferred embodiments, antetheca 104A and side wall 104B tiltables are to cause the top surface of antetheca and side wall to tilt Away from aperture 114 is exited, typically lower than exit between 0.5 inch and 1.25 inches of aperture.

Therefore, in embodiments, as depicted in figs. 1 and 2, when TOR coatings device assembly 100 is attached on rail head 108, The upper surface of bar 102 is inclined away from rail head 108.The top surface of the bar for the TOR applicators being defined herein show from rail head 108 to Bar 102 closest to the side in outfield from exit aperture 114 to downslope.When being attached to rail head 108, TOR applicators Configuration causes TOR applicators to be less likely to be negatively affected by train wheel.When being attached to rail head 108, the slope of bar 102 It can be about 5 degree to about 15 degree, more preferably from about 8 degree to about 10 degree from the horizontal plane limited by rail head 108.

As illustrated in fig. 3, friction control composition is pumped in path 110 by inlet port 112.The composition with Exited afterwards on rail head 108 by exiting aperture 114 from path 110.

Fig. 2 shows threaded screw 113, wherein inlet port 112 at one end.The other end of threaded screw is fixed to platform In 120, then by the antetheca 104A feed-ins bar 102 of housing.In an alternate embodiment, for receiving friction control combination The port of thing can be the part of housing to cause inlet port and housing is a unified element.

As shown in figure 5, path 110 is provided for friction control composition from the path that pump is flowed on rail head 108.Path 110 diameter is preferably between about 0.50 inch to about 0.75 inch., can when the diameter of path 110 is less than 0.50 inch It can be blocked.When the diameter of path 110 is more than 0.75 inch, it may be necessary to which larger pump forces friction control composition It is passed into mouth 112 and entering path.In certain embodiments, inlet port 112 and/or exit aperture 114 can be by pressing The small slit that power is opened from pump.

Conventional pump, valve and flexible pipe be used to supply friction control composition to port 112, through path 110 and pass through Aperture 114 is exited to reach on rail head.

In Figure 5, the inlet port 112 on threaded screw 113, which is shown as being connected to, exits aperture leading in bar 102 Path 110.Pump can by it is well known in the art it is various in a manner of enable, including electronics wheel sensor.

In an alternate embodiment, TOR applicators can not have housing to cause the feed-in of inlet port 111 has to exit aperture Single element in.

Bar 102 can further comprise seal 116, as illustrated in fig. 4.The auxiliary of seal 116 prevents friction control group Compound is from the bar 102 that the bizet 106 of rail head 108 flows to TOR applicators.In the case of not utilizing seal 116, once friction Control composition is coated on rail head 108, and friction control composition can be flowed on any surface of TOR applicators, including bar 102 Or any side of housing 104.Therefore seal 116 can provide the impermeable membrane between the side of rail head 108 and housing 104. Friction control composition is not inclined to flowing wherein, the situation as example when friction control composition is thixotropy Under, seal 116 can be unnecessary.

In embodiments, seal 116 can be packing ring.Suitable packing ring is restricted including Teflon, such as can be from McMaster Carr bought with product department's piece number 8824K11Flange Mount PTFE rope seals those.In addition, seal 116 can be by Elastomer or rubber are formed.

Sometimes, it may be necessary to during maintenance, such as TOR applicators are moved away from rail head 108 during track is ground, During the track grinding, rail head 108 restores back its original contour.Track grinds the object in the path for requiring moving grinding machine (including TOR applicators).

Movement of the TOR applicators away from rail head 108 and towards outfield can be completed by using pivotal point 118.In Fig. 3 Illustrated, the basal surface of housing 104 can be directly or indirectly still in solid platform 120.Shown to bottom bracket 122A and 122B Go out to extend from the bottom of platform 120.This kind of bracket is attached to platform 120 or can be integrally formed with platform.To bottom bracket 122A and 122B further has the slit 124 for being used for receiving pivotal point 135A and 135B respectively.To bottom bracket 122A and 122B Opposite end be track fixture 128A and 128B for being fixed on the remainder of TOR applicators on rail head 108.Track Fixture 128 and 128B to bottom bracket 122A and 122B by being pivotally coupled to platform.It is illustrated to bottom bracket 122A and 122B To form integral unit with track fixture 128A and 128B, but they can be used as and individually exist with element visibly distinguished from one another. Although pivotal point 118A and 118B are illustrated as nuts and bolt, other retaining elements can be used.Use pivoting bolt 118A and 118B and slit 124, TOR applicators can move up and down.In addition, pivoting bolt 118A and 118B can be used for the platform that relaxes Attachment between 120 and track fixture 128, make it that platform 120 (and TOR applicators) can be with counterclockwise away from rail head 108 rotation, as can it is observed from fig. 1 that.

The surface of platform 120 can further have the slit 134 for being used for receiving leveling bolt 136.Leveling bolt in Fig. 5 136 are shown as being threaded io in reception base 115, and the reception base 115 is attached to track using J-shaped bolt 137 Track pier base 109.Leveling bolt 136 can be used for ensuring that the aperture 114 of exiting from path 110 is positioned at the lower section of rail head 108 1/8 inch or bigger.In some cases, if bar is made up of toughness material and/or if the bar for being inclined away from rail head causes The impact failure of rail wheel is smaller, then bar can be placed on the lower section of rail head 108 and be higher than 1/8 inch.

Correctly positioned to ensure bar 102 with respect to rail head 108, the leveling bolt 120 on rotatable rail legs 20 and TOR applicators and therefore bar 102 are moved up and down.

TOR applicators can further have one or more shock absorbers 130 to aid in minimizing to the broken of bar 102 It is bad.As exemplified in figure 1, shock absorber 130 can be placed between the basal surface of platform 120 and housing 104.Suitable shake Dynamic absorber 130 includes a series of pads being used together with bolt 132 and spring and pneumatic absorber.In the side of being preferable to carry out In case, if impacted by train wheel, then bar 102 is bent.It is important, however, that bar has for exiting aperture 114 Necessary resistance to be retained in relative to rail head 108 at optimum height.Further it is desirable that：Bar be anti-UV and/ Or water resistant.

In at least one embodiment, bar 102 is elastomer.In preferred embodiments, elastic body rod is presented in Hardness between 50Shore A and 75Shore A.Elastic body rod 102 is preferably made up of polyurethane, and the polyurethane such as can be from The polyurethane that H＆H Urethane are bought, and can by method well known in the art (such as injection molding, machinery plus Work etc.) mould or shape.

In some embodiments of the disclosure, (that is, bar 102 and vibrations is inhaled for the part for being not intended to flexure of applicator 50 Receive device 130 be intended to flexure) by being intended to the rigidity longer than the endurance of bar 102, strong material is made.Some examples include some gold Category, such as 1060 carbon steels and 4130 molybdenum steels.These parts can be formed by the well-known process obtained in the prior art, such as machinery Processing, impressing and molding.

In at least one embodiment of the disclosure, the friction between steel surface or friction are by friction control composition Number is changed into just from negative, and so as to reduce or eliminate laterally, longitudinally and/or rotate creep, and correspondingly reduce or eliminate lateral Power and wheel-path wear increase the stability of train simultaneously.

Friction control composition can be placed on the bizet 106 of rail head 108 by exiting aperture 114.

Friction control composition is pumped to be pushed into rail on aperture from exiting on applicator bar to be viscous enough to obtain The top in road.In some cases, friction control composition can have measured on 35 type fann viscosimeters at 25 DEG C extremely Few 2,000cP viscosity, the 35 type fann viscosimeter have the R1B1 rotors and plummet component rotated at 300 rpm.Utilize Viscosity be at least 2,000CP friction modifiers the problem of be：May need larger tubular conduit through applicator bar with And more powerful pump promotes more viscous friction modifiers.

Because it is intended to make to exit aperture 110 at least 1/8 inch below rail head 108 in some embodiments, weight What is wanted is that friction modifiers are thixotropings so that it can be by oblique upper " pushing away " to the top of rail head 10.Which ensure that substantial amounts of friction Modifying agent terminates on the top surface of track and then flows down track.

In an embodiment of the disclosure, friction modifiers include thixotropic materials, and the thixotropic materials are due to shearing Cause dilute and easily flow through the aperture in applicator bar.However, as thixotropic materials, when it is stationary in the top of track or side When on face, the material just becomes more viscous.Although thixotroping friction modifiers are pumped by pump, flexible pipe and applicator bar, It is that shear thinning reduces viscosity and allows friction modifiers to flow more easily through tubular conduit and flow out applicator.

In at least one other embodiment, the rail top coat applicator of the disclosure is intended to the friction modified combination only with thixotroping Thing is used together and therefore can be pushed into upward on rail head, even if the horizontal plane for exiting aperture less than rail head reaches at least 1/8 English Very little amount is also such.The thixotropic nature of friction modifiers is ensured when composition leaves from the position below the top of raceway surface At the top surface of applicator bar when exiting aperture, the composition " will climb " and (push to) rail head with so that largely rubbing Modifying agent terminates on the top surface of track and then flows down track.

It is this compared with the low viscosity less pump of permission and/or less tubular conduit during pumping.When thixotroping friction changes When applicator bar is exited in property agent, it immediately begins to retrogradation (becoming more viscous).This increased viscosity allows three kinds in accordance with need The effect wanted.First, the friction modifiers of a drop viscosity are thick enough to be brought to the side of rail head and due to from pump Back pressure and towards the top center of rail head.Secondly, the friction modifiers in this more viscous state are less likely to flow out rail The side in road is on ground.Again, because friction modified agent material is by train wheel " shearing ", so it becomes less to glue again It is thick and be easier to flow down track to allow the farther interval of applicator.This kind of material allows rail of the friction modifiers along track The downward more consistent distribution in road.

In at least one embodiment, friction modifier combination thing has following in terms of percentage by weight (w/w%) Composition：

(a) about 4w/w% to about 40w/w% water；

(b) about 2w/w% to about 20w/w% rheologic additive；

(c) about 10w/w% to about 40w/w% water-insoluble hydrocarbon；

(d) about 10w/w% to about 40w/w% water-soluble polyalcohols antifreezing agent；

(e) about 1w/w% to about 7w/w% liquid or solid friction modifiers；With

(f) about 1w/w% to about 40w/w% liquid or solid lubricant.

Optionally, composition also one or more containing the following：

(g) 1w/w% to 3w/w% surfactant or wetting agent

(h) 0.1w/w% to 0.5w/w% corrosion inhibitor, and/or

(i) 0.05w/w% to 0.2w/w% biocide/fungicide.

Water-insoluble hydrocarbon can be isoparaffin, vegetable oil, triglycerides, fat oil or its mixture based on biology.

In another embodiment, the friction control composition of friction control composition includes：

(a) 15w/w% to 29w/w% water

(b) 4w/w% to 13w/w% rheologic additive

(c) 11w/w% to 28w/w% water-insoluble hydrocarbon (such as isoparaffin, vegetable oil, based on biology glycerine three Ester or fat oil).

(d) 22w/w% to 40w/w% antifreezing agent

(e) 9w/w% to 24w/w% liquid or solid friction modifiers

(f) 1w/w% to 6w/w% liquid or solid lubricant.

As described above, composition also optionally one or more containing the following：

(g) 1w/w% to 3w/w% surfactant or wetting agent

(h) 0.1w/w% to 0.5w/w% corrosion inhibitor, and/or

(i) 0.05w/w% to 0.2w/w% biocide/fungicide

It has been found that water-insoluble hydrocarbon is added into composition (for example, isoparaffin, such as SOTROL 220) contributes to reduction solidifying Solid point and additionally aid rheology that is stable or even improving preparation.By water-insoluble hydrocarbon with as glycerine other antifreezing agents When comparing, this is particularly true.Other water-insoluble hydrocarbon of environmental advantage with more than isoparaffin are vegetable oil, are based on The triglycerides of biology and the fat oil such as rapeseed oil.It is described oil do not have with isoparaffin identical freezing point advantage, still They are environment-friendly.

It is to violate intuition that water-insoluble hydrocarbon (isoparaffin or oil) is added in the friction control composition for be based partially on water , because it will be appreciated that the water-insoluble hydrocarbon will not be sufficiently mixed with water and will be likely to separate.But, it is believed that it is viscous Soil, which has, allows water-insoluble hydrocarbon to be bonded on clay and keep the receptor site of final products homogeneous.Obtain be can contain compared with The water of low amounts and in the case of isoparaffin the soluble polyalcohol antifreezing agent (such as glycerine) of relatively low amount composition.Such as institute above Point out, the friction control composition based on water has the problem of maintenance aspect, and typical antifreezing agent can cause to combination The negative rheology of thing influences.

The example of the friction modified agent material of currently available thixotroping is the Whitmores from Texas Rock Wall " TOR Armor ".Thixotropic materials allow the pump, flexible pipe and applicator with optimal size.In at least one embodiment, Replaceable applicator bar is made up of polyurethane insert.Which ensure that in the case where bar is collided by train wheel bar flexure with Help prevents to destroy.However, bar also it is sufficiently ductile with even its general profile is kept after this impact.

Claims (47)

1. a kind of applicator for being used to for friction control composition to be delivered to rail head, the applicator include：

(a) housing；

(b) bar being positioned in the housing；

(c) the friction control composition on the upper section of the bar exits aperture, wherein the upper section of the bar It is inclined away from the friction control composition and exits aperture.

2. applicator as claimed in claim 1, wherein the upper section of the bar is between about 5 degree to about 15 degree Angle tilt exits aperture away from the friction control composition.

3. applicator as claimed in claim 2, wherein the bar with the angle tilt between about 8 degree to about 10 degree away from institute State friction control composition and exit aperture.

4. applicator as claimed in claim 1, it further comprises platform, and the bottom of the housing is still in the platform On.

5. applicator as claimed in claim 1, wherein the bar can remove from the housing.

6. applicator as claimed in claim 5, wherein the bar is releasably attached to the housing.

7. applicator as claimed in claim 4, it further comprises between the platform and the bottom of the housing One or more shock absorbers.

8. applicator as claimed in claim 1, it further comprises the friction control on the low portion on the slope Composition inlet port.

9. applicator as claimed in claim 8, it further comprises rubbing to described from the friction control composition inlet port Wipe the path for being used to convey the friction control composition that control composition exits aperture.

10. applicator as claimed in claim 9, wherein the path is tubulose.

11. applicator as claimed in claim 10, wherein the diameter of the path about 0.5 inch to about 0.75 inch it Between.

12. applicator as claimed in claim 1, wherein the bar includes elastomer.

13. applicator as claimed in claim 12, wherein the elastomer is polyurethane.

14. applicator as claimed in claim 13, wherein the polyurethane has between 50Shore A and 75Shore A Hardness.

15. applicator as claimed in claim 1, wherein the housing has side wall, antetheca and rear wall and further comprised Adjacent to the seal of the antetheca.

16. a kind of be used to deliver friction control composition to the coating device assembly of rail head, the coating device assembly is including such as right It is required that the applicator described in 4 and the fixture for being attached to the platform on the rail head of track.

17. coating device assembly as claimed in claim 16, it further comprises leveller.

18. coating device assembly as claimed in claim 16, controlled wherein the bar of the applicator has for the friction The inlet port of composition processed, and further comprise from the friction control composition inlet port to the friction control composition Exit the path for being used to convey the friction control composition in aperture.

It is 19. a kind of using on coating device assembly delivering friction control composition to the bizet of rail head as claimed in claim 16 Method, methods described include the pumping friction control composition and exit aperture to the bizet of the rail head through described On.

It is 20. a kind of using on coating device assembly delivering friction control composition to the bizet of rail head as claimed in claim 18 Method, methods described include：

(a) the friction control composition is pumped into the path and exits aperture through described；With

(b) the friction control composition is applied on the bizet of the rail head from the aperture of exiting.

21. method as claimed in claim 19, wherein the exit aperture mouth is positioned at below the top surface of the rail head 1/8 inch or bigger.

22. method as claimed in claim 19, wherein the viscosity of the friction control composition is at least 2,000cP.

23. method as claimed in claim 19, wherein the friction control composition is thixotroping.

24. method as claimed in claim 23, wherein the thixotroping friction control composition includes

(a) about 4wt.% to about 40wt.% water；

(b) about 2wt.% to about 20wt.% rheologic additive；

(c) about 10wt.% to about 40wt.% water-insoluble hydrocarbon；

(d) about 10wt.% to about 40wt.% water-soluble polyalcohols antifreezing agent；

(e) about 1wt.% to about 7wt.% liquid or solid friction modifiers；With

(f) about 1wt.% to about 40wt.% liquid or solid lubricant.

25. method as claimed in claim 24, wherein the thixotroping friction control composition further includes：

(g) 1wt.% to 3wt.% surfactant or wetting agent

(h) 0.1wt.% to 0.5wt.% corrosion inhibitor, and/or

(i) 0.05wt.% to 0.2wt.% biocide/fungicide.

26. method as claimed in claim 24, wherein the water-insoluble hydrocarbon is selected from by isoparaffin, vegetable oil, based on life The group of triglycerides and the fat oil composition of thing.

27. method as claimed in claim 25, wherein the thixotroping friction control composition includes：

(a) 15wt.% to 29wt.% water

(b) 4wt.% to 13wt.% rheologic additive

(c) 11wt.% to 28wt.% water-insoluble hydrocarbon；

(d) 22wt.% to 40wt.% antifreezing agent

(e) 9wt.% to 24wt.% liquid or solid friction modifiers

(f) 1wt.% to 6wt.% liquid or solid lubricant.

28. a kind of coating device assembly for being used to deliver top surface of the friction control composition to rail head, the coating device assembly bag Include：

(a) applicator, it includes (i) housing；(ii) the elastic body rod being positioned in the housing；(iii) it is described for pumping Inlet port in friction control composition to path；(iv) is used to pump the friction control composition to the rail head Exit mouth；

(b) platform, the basal surface placement of the housing is on the platform；

(c) it is attached to the leveller of the platform；With

(d) be attached to the fixture that the platform is used to the coating device assembly is attached on the rail head.

29. coating device assembly as claimed in claim 28, wherein the path in the elastomer bar is tubulose.

30. coating device assembly as claimed in claim 29, wherein the diameter of the tubular passageway is at about 0.5 inch to about 0.75 Between inch.

31. coating device assembly as claimed in claim 28, it further comprises the shake between the housing and the platform Dynamic absorber.

32. coating device assembly as claimed in claim 28, wherein the fixture is pivotably coupled to the platform.

33. coating device assembly as claimed in claim 28, wherein the elastomer bar is made up of polyurethane.

34. applicator as claimed in claim 33, wherein the polyurethane has between 50Shore A and 75Shore A Hardness.

35. applicator as claimed in claim 28, wherein the housing has side wall, antetheca and rear wall and further comprised Adjacent to the seal of the antetheca.

36. applicator as claimed in claim 28, wherein the housing has side wall, antetheca and rear wall and further, The top at the top of wherein described side wall, the top of the antetheca and the rear wall below the height for exiting aperture about Between 0.5 inch to about 1.25 inches.

It is 37. a kind of using on coating device assembly delivering friction control composition to the bizet of rail head as claimed in claim 28 Method, methods described include：

(a) the friction control composition is pumped in the path；

(b) the friction control composition is exited into aperture described in be applied on the bizet of the rail head.

38. method as claimed in claim 37, wherein the exit aperture mouth is positioned at below the top surface of the rail head 1/8 inch or bigger.

39. method as claimed in claim 37, wherein the bar is inclined away from the top surface of the rail head；

40. method as claimed in claim 37, wherein being tilted in about 5 described in the top surface of the bar from the rail head Spend between about 15 degree.

41. method as claimed in claim 37, wherein the exit aperture mouth is positioned at below the top surface of the rail head 1/8 inch.

42. method as claimed in claim 37, wherein the viscosity of the friction control composition is at least 2,000cP.

43. method as claimed in claim 37, wherein the friction control composition is thixotroping.

44. method as claimed in claim 43, wherein the thixotroping friction control composition includes

(a) about 4wt.% to about 40wt.% water；

(b) about 2wt.% to about 20wt.% rheologic additive；

(c) about 10wt.% to about 40wt.% water-insoluble hydrocarbon；

(d) about 10wt.% to about 40wt.% water-soluble polyalcohols antifreezing agent；

(e) about 1wt.% to about 7wt.% liquid or solid friction modifiers；With

(f) about 1wt.% to about 40wt.% liquid or solid lubricant.

45. method as claimed in claim 44, wherein the thixotroping friction control composition further includes：

(g) 1wt.% to 3wt.% surfactant or wetting agent

(h) 0.1wt.% to 0.5wt.% corrosion inhibitor, and/or

(i) 0.05wt.% to 0.2wt.% biocide/fungicide.

46. method as claimed in claim 44, wherein the water-insoluble hydrocarbon is selected from by isoparaffin, vegetable oil, based on life The group of triglycerides and the fat oil composition of thing.

47. method as claimed in claim 43, wherein the thixotroping friction control composition includes：

(a) 15wt.% to 29wt.% water

(b) 4wt.% to 13wt.% rheologic additive

(c) 11wt.% to 28wt.% water-insoluble hydrocarbon；

(d) 22wt.% to 40wt.% antifreezing agent

(e) 9wt.% to 24wt.% liquid or solid friction modifiers

(f) 1wt.% to 6wt.% liquid or solid lubricant.