CN114753250A - Sliding pair structure between steel structure contact surfaces - Google Patents
Sliding pair structure between steel structure contact surfaces Download PDFInfo
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- CN114753250A CN114753250A CN202210529654.8A CN202210529654A CN114753250A CN 114753250 A CN114753250 A CN 114753250A CN 202210529654 A CN202210529654 A CN 202210529654A CN 114753250 A CN114753250 A CN 114753250A
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- sliding pair
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- fluorocarbon paint
- sliding
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 58
- 239000010959 steel Substances 0.000 title claims abstract description 58
- 239000003973 paint Substances 0.000 claims abstract description 51
- -1 graphene modified fluorocarbon Chemical class 0.000 claims abstract description 49
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 46
- 238000000576 coating method Methods 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 33
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 22
- 239000010935 stainless steel Substances 0.000 claims abstract description 22
- 239000000314 lubricant Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 15
- 239000002518 antifoaming agent Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 230000007797 corrosion Effects 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 7
- 239000003999 initiator Substances 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical group [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000011268 mixed slurry Substances 0.000 claims description 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 6
- 239000008234 soft water Substances 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 6
- 238000010288 cold spraying Methods 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 4
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical group CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 3
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 239000003974 emollient agent Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical group COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 235000010413 sodium alginate Nutrition 0.000 claims description 3
- 239000000661 sodium alginate Substances 0.000 claims description 3
- 229940005550 sodium alginate Drugs 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 235000010288 sodium nitrite Nutrition 0.000 claims description 3
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 2
- 230000006835 compression Effects 0.000 abstract description 9
- 238000007906 compression Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 5
- 239000002861 polymer material Substances 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 description 10
- 230000035882 stress Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 description 8
- 238000011068 loading method Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241000282836 Camelus dromedarius Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention belongs to the technical field of high polymer materials, and particularly relates to a sliding pair structure between steel structure contact surfaces. The invention comprises an upper sliding pair and a lower sliding pair, wherein the upper sliding pair comprises a first steel structure, a mirror-surface-grade stainless steel plate is fixedly connected onto the first steel structure, a lubricant is coated on the mirror-surface-grade stainless steel plate, the lower sliding pair comprises a second steel structure, a two-component graphene modified fluorocarbon paint coating is arranged on the second steel structure, and one side of the upper sliding pair, which is provided with the mirror-surface-grade stainless steel plate, is in contact with one side of the lower sliding pair, which is provided with the two-component graphene modified fluorocarbon paint coating. According to the invention, under the cooperation of the mirror-surface-grade stainless steel plate, the two-component graphene modified fluorocarbon paint coating and the lubricant, excessive compression deformation caused by excessive surface pressure among sliding pairs is avoided, and when the surface pressure is not more than 5MPa, the friction coefficient can be controlled below 0.1, so that the problem that the actual stress state and the design stress state of the structure are inconsistent due to excessive compressive deformation of the sliding pairs and insufficient durability of the sliding pairs in the prior art is solved.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a sliding pair structure between steel structure contact surfaces.
Background
The traditional sliding pair in the bridge structure is mostly formed by stainless steel and a polytetrafluoroethylene plate, but because the elastic modulus of the polytetrafluoroethylene plate is low, certain compression deformation occurs at the sliding pair part when the surface pressure is large. The sliding pair is used between adjacent sections of the slidable steel anchor box of the cable-stayed bridge, and if the traditional sliding pair, namely a stainless steel and polytetrafluoroethylene plate form is adopted between the sections of the steel anchor box, the compressive deformation accumulated value of each sliding pair is larger, so that the anchor point coordinate of the stay cable is greatly influenced; in addition, polytetrafluoroethylene has ageing problem, and along with ageing emergence, the compressive deformation of vice department of sliding will further increase, leads to the suspension cable anchor point further to change, influences the atress of structure, and along with the ageing emergence of polytetrafluoroethylene, the vice inefficacy of sliding will be followed the change of support boundary condition between the steel anchor case to influence the atress of structure.
Disclosure of Invention
The invention provides a sliding pair structure between steel structure contact surfaces, aiming at the problem that the actual stress state and the design stress state of the structure are inconsistent due to overlarge compression deformation of a sliding pair and insufficient durability of the sliding pair in the prior art.
The technical scheme adopted by the invention is as follows:
the utility model provides a vice structure of sliding between steel construction contact surface, is vice under vice and the slip including sliding, slide and go up vice including first steel construction, fixedly connected with mirror surface level corrosion resistant plate on the first steel construction, the coating has emollient on the mirror surface level corrosion resistant plate, slide down vice including the second steel construction, be provided with two ingredient graphite alkene modified fluorocarbon paint coatings on the second steel construction, mirror surface level corrosion resistant plate contacts with two ingredient graphite alkene modified fluorocarbon paint coatings.
After the technical scheme is adopted, the mirror surface-level stainless steel plate is arranged on the upper sliding pair, the lubricant is arranged on the mirror surface-level stainless steel plate, the two-component graphene modified fluorocarbon paint coating is arranged on the lower sliding pair, when the upper sliding pair and the lower sliding pair slide relatively, the friction coefficient of the sliding pair can be reduced as much as possible by the combination of the two-component graphene modified fluorocarbon paint coating and the mirror surface-level stainless steel plate, the excessive compression deformation caused by the excessive surface pressure among the sliding pairs can not be generated under the matching action of the mirror surface-level stainless steel plate, the two-component graphene modified fluorocarbon paint coating and the lubricant, when the surface pressure is not more than 5MPa, the friction coefficient can be controlled below 0.1, and the problem that the actual stress state of the structure is inconsistent with the design stress state due to the excessive compression deformation of the sliding pair and insufficient durability of the sliding pair in the prior art is solved.
Preferably, a plurality of cylindrical grooves are arranged on the lower sliding pair in an staggered mode, a lubricant is arranged in the cylindrical grooves, the diameter of each cylindrical groove is equal to the clear distance between adjacent cylindrical grooves, and the depth of each cylindrical groove is 3 mm.
After the technical scheme is adopted, the solid lubricant is stored in the cylindrical groove, the lubricant in the cylindrical groove can be extruded out of the cylindrical groove along with the increase of the surface pressure of the sliding pair and is brought into the sliding pair, and then the sliding pair is lubricated.
Preferably, the lubricant is silicone grease.
After the technical scheme is adopted, the silicone grease is used as a lubricant, so that the lubricating effect is achieved.
Preferably, the two-component graphene modified fluorocarbon paint coating is arranged on the second steel structure in a cold spraying mode, and the thickness of the two-component graphene modified fluorocarbon paint coating is 100 microns.
After the technical scheme is adopted, the double-component graphene modified fluorocarbon paint coating is formed on the surface of the second steel structure by adopting a cold spraying technology, heating is not needed, and the damage to the anticorrosive coating of the surface of the steel structure can be avoided.
Preferably, the surface roughness Ra of the mirror-surface-grade stainless steel plate is 0.1-0.2 μm, the surface treatment of the second steel structure adopts a Sa2.5 surface treatment grade, and Rz is less than or equal to 40 μm.
After the technical scheme is adopted, in order to ensure that the cold spraying double-component graphene modified fluorocarbon paint has enough bonding strength with the metal surface, the treatment grade of the steel structure surface needs to reach Sa2.5 grade, and the surface of a workpiece needs not to be seen greasy, dirt, oxide skin, rusty scale, paint, chloride, corrosive substances and other foreign substances (except defects), but the defects are limited to be not more than 5 percent of the surface per square meter and can include slight shadows; a small amount of slight camel caused by defects and corrosion, oxide skin and paint defects.
A method for preparing the two-component graphene modified fluorocarbon paint coating of claim 1 or claim 4, comprising the steps of:
step 1: the initiator, the epoxy resin and the fluorocarbon resin are mixed according to the proportion of 1: (4-5): (5-6) mixing and uniformly stirring the components in a mass ratio to obtain fluorocarbon modified resin;
step 2: mixing graphene and a dispersing agent according to the proportion of 1: (14-15) mixing and uniformly stirring the components in a weight ratio to obtain a graphene solution;
and step 3: mixing water-soluble color paste and an auxiliary agent in soft water according to a certain proportion, and uniformly stirring to form mixed slurry, wherein the mass ratio of the soft water to the water-soluble color paste to the auxiliary agents is 1: (0.05-0.08): (0.03-0.04);
and 4, step 4: mixing the fluorocarbon modified resin, the graphene solution and the mixed slurry obtained in the steps 1, 2 and 3, grinding the mixture to be less than 30 micrometers, pressurizing and filtering the feed liquid after grinding is finished, and then ultrasonically defoaming the feed liquid to obtain the double-component graphene modified fluorocarbon paint main paint;
and 5: and (3) mixing the two-component graphene modified fluorocarbon paint main paint prepared in the step (4) with a curing agent according to the mass ratio of 1 (0.05-0.1), uniformly stirring, and spraying on a second steel structure to form a two-component graphene modified fluorocarbon paint coating.
After the technical scheme is adopted, the two-component graphene modified fluorocarbon paint prepared by the method has the characteristics of pressure resistance, wear resistance and low friction coefficient, the friction coefficient of a sliding pair can be reduced to the greatest extent by combining the two-component graphene modified fluorocarbon paint coating and a mirror surface-grade stainless steel plate, and the friction coefficient can be controlled below 0.1 under the condition of silicone grease lubrication when the surface pressure is not more than 5 MPa.
Preferably, the initiators described in step 1 are sodium persulfate and sodium nitrite.
After the technical scheme is adopted, the epoxy resin and the fluorocarbon resin are subjected to chemical reaction under the action of the initiator to obtain the fluorocarbon modified resin.
Preferably, the dispersant in step 2 is silicone oil.
After the technical scheme is adopted, the graphene is well dispersed in the silicone oil, and a graphene solution is obtained.
Preferably, the various auxiliary agents in step 3 include, but are not limited to, an antifoaming agent, a film-forming auxiliary agent, a compatilizer and a stabilizer, wherein the antifoaming agent is a polyether antifoaming agent or a silicon antifoaming agent, the film-forming auxiliary agent is propylene glycol methyl ether acetate, the stabilizer is sodium alginate, and the compatilizer is sodium bicarbonate.
After the technical scheme is adopted, the stability and the using effect of the two-component graphene modified fluorocarbon paint main paint are improved through the auxiliary agents.
Preferably, the curing agent in step 5 is ammonium chloride.
After the technical scheme is adopted, the double-component graphene modified fluorocarbon paint main paint and the curing agent are mixed to generate a cross-linking reaction to combine a compact three-dimensional network structure, and a curing effect is achieved.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. under the cooperation of the mirror-surface-grade stainless steel plate, the two-component graphene modified fluorocarbon paint coating and the lubricant, excessive compression deformation caused by excessive surface pressure among sliding pairs can not occur, when the surface pressure is not more than 5MPa, the friction coefficient can be controlled below 0.1, and the problem that the actual stress state and the design stress state of the structure are inconsistent due to excessive compression deformation of the sliding pairs and insufficient durability of the sliding pairs in the prior art is solved.
2. The cylindrical groove stores solid lubricant, and the lubricant in the cylindrical groove can be extruded out of the cylindrical groove along with the increase of the surface pressure of the sliding pair and is brought into the sliding pair, so that the sliding pair is lubricated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the cylindrical groove arrangement of FIG. 1;
FIG. 3 is a graph of the coefficient of friction results for the present invention;
the method comprises the following steps of 1-a second steel structure, 2-a two-component graphene modified fluorocarbon paint coating, 3-a first steel structure, 4-a mirror surface level stainless steel plate and 5-a cylindrical groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present invention is used to place as usual, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1, a vice structure of sliding between steel construction contact surface, it is vice under vice and the slip including sliding, the vice first steel construction 3 that includes is gone up in the slip, fixedly connected with mirror surface level corrosion resistant plate 4 on the first steel construction 3, the coating has the emollient on mirror surface level corrosion resistant plate 4, the vice second steel construction 1 that includes is slided down, be provided with two ingredient graphite alkene modified fluorocarbon paint coatings 2 on the second steel construction 1, mirror surface level corrosion resistant plate 4 contacts with two ingredient graphite alkene modified fluorocarbon paint coatings 2.
In this embodiment, a plurality of cylindrical grooves 5 are alternately arranged on the lower sliding pair, a lubricant is arranged in the cylindrical grooves 5, the diameter of each cylindrical groove 5 is equal to the clear distance between adjacent cylindrical grooves 5, and the depth of each cylindrical groove 5 is 3mm (as shown in fig. 2).
In this embodiment, the lubricant is silicone grease.
In this embodiment, the two-component graphene modified fluorocarbon paint coating 2 is disposed on the second steel structure 1 by cold spraying, and the thickness of the two-component graphene modified fluorocarbon paint coating 2 is 100 μm.
In the embodiment, the surface roughness Ra of the mirror surface-grade stainless steel plate 4 is 0.16 μm, the surface treatment of the second steel structure 1 adopts Sa2.5 surface treatment grade, and Rz is less than or equal to 40 μm.
A preparation method of a two-component graphene modified fluorocarbon paint coating comprises the following steps:
step 1: the initiator, the epoxy resin and the fluorocarbon resin are mixed according to the proportion of 1: 4: 5, mixing and uniformly stirring to obtain fluorocarbon modified resin;
step 2: mixing graphene and a dispersing agent according to the proportion of 1: 14, mixing and uniformly stirring to obtain a graphene solution;
and step 3: mixing water-soluble color paste and various additives in soft water according to a certain proportion, and uniformly stirring to form mixed slurry, wherein the mass ratio of the soft water to the water-soluble color paste to the various additives is 1: 0.05: 0.03;
and 4, step 4: mixing the fluorocarbon modified resin obtained in the step 1, the step 2 and the step 3, graphene solution and mixed slurry, grinding the mixture to be less than 30 microns, pressurizing and filtering the feed liquid after grinding, and then ultrasonically defoaming the feed liquid to obtain the two-component graphene modified fluorocarbon paint main paint;
and 5: and 5: and (3) mixing the two-component graphene modified fluorocarbon paint main paint prepared in the step (4) with a curing agent according to a mass ratio of 1:0.05, uniformly stirring, and spraying the mixture on a second steel structure 1 to form a two-component graphene modified fluorocarbon paint coating 2.
In this example, the initiators described in step 1 were sodium persulfate and sodium nitrite.
In this embodiment, the dispersant in step 2 is silicone oil.
In this embodiment, the various auxiliaries in step 3 include, but are not limited to, an antifoaming agent, a film-forming aid, a compatibilizer, and a stabilizer, where the antifoaming agent is a polyether antifoaming agent or a silicon antifoaming agent, the film-forming aid is propylene glycol methyl ether acetate, the stabilizer is sodium alginate, and the compatibilizer is sodium bicarbonate.
In this embodiment, the curing agent in step 5 is ammonium chloride.
Example 2
In this embodiment, a friction coefficient test was performed on the sliding pair structure described in embodiment 1, and the specific method is as follows:
at present, no test rule or technical standard specially aiming at the friction coefficient of the sliding pair exists, and the following loading test method is formulated in the study with reference to a friction coefficient test method in bridge spherical bearing (GB/T17955-2009):
(1) welding the mirror surface stainless steel sliding upper pair on the bottom surface of the horizontal shearing steel plate of the testing machine;
(2) installing the sliding lower part provided with the two-component graphene modified fluorocarbon paint coating in a test piece fixing groove of a lower pressing plate of a testing machine, pushing a sample feeding trolley back to a loading position of the testing machine and fixing, and ensuring that the deviation between the center of the sliding lower part test piece and the center of the lower pressing plate is less than 5 mm;
(3) placing a cushion block at the center of the mirror surface stainless steel plate on the upper surface of the horizontal shearing steel plate of the testing machine, wherein the cushion block is in contact with the lower surface of the upper pressure plate through the rough upper surface, the lower surface of the cushion block is provided with a polytetrafluoroethylene plate, and silicone grease is smeared between the polytetrafluoroethylene plate and the mirror surface stainless steel for lubrication;
(4) extending the horizontal shearing steel plate into the middle of the upper and lower pressing plates, and adjusting the height of the horizontal shearing steel plate to enable the mirror surface stainless steel sliding upper pair on the lower surface of the horizontal shearing steel plate to be in contact with the sliding lower pair;
(5) slowly lowering the upper pressure plate of the testing machine to enable the upper pressure plate to be in contact with the cushion block on the horizontal shearing plate;
(6) vertical pressure is slowly exerted at a constant speed through a jack below the lower pressing plate, and meanwhile, a vertical servo floating cylinder of the horizontal shearing plate can vertically move so as to keep the horizontal shearing steel plate in a horizontal state all the time. When the preset compressive stress is reached, keeping the vertical load unchanged, slowly and uniformly applying a horizontal load to the horizontal shearing steel plate, and after the upper sliding pair and the lower sliding pair horizontally slide relatively, continuously and stably loading in a displacement loading mode in the horizontal direction to enable the upper sliding pair and the lower sliding pair to slide relatively by 25mm, so that the gap between the loading equipment and the upper sliding pair and the lower sliding pair is eliminated, and the upper sliding pair and the lower sliding pair are completely attached;
(7) continuously applying horizontal load in a displacement loading mode to ensure that the upper sliding pair and the lower sliding pair generate 2mm relative slippage, suspending the loading for 5 seconds, and recording the maximum horizontal force F when the relative slippage just occurs1；
(8) Repeating the step (7) twice, and recording the maximum horizontal force F when relative slippage just occurs2，F3；
(9) Take FhIs F1，F2，F3Of (d), the total coefficient of static friction μ is calculated according to equation 1t。
FvIs the vertical force applied.
The friction coefficient of the stainless steel on the surface of the upper surface of the horizontal shearing steel plate and the polytetrafluoroethylene plate on the bottom surface of the cushion block under the condition of silicone grease lubrication is 0.01, so that the friction coefficient mu of the tested sliding pairhIt should be calculated as equation 2.
μh＝μt-0.01 (2)
The results of the friction coefficient of the sliding pair structure under a surface pressure of 5MPa are shown in FIG. 3. When the common steel plate adopts Sa2.5-level surface processing technology, the friction coefficient of the sliding pair fluctuates within the range of 0.12-0.16 under the condition that the thickness of the coating is 50 microns; and when the thickness of the coating is increased by 100 micrometers, the friction coefficient of the sliding pair fluctuates within the range of 0.03-0.06, so that when other conditions are consistent, the thicker the two-component graphene modified fluorocarbon paint coating is, the smaller the friction coefficient is.
The embodiment shows that under the coordination action of the mirror-surface-grade stainless steel plate, the two-component graphene modified fluorocarbon paint coating and the lubricant, the sliding pair does not generate compression deformation due to overlarge surface pressure, when the surface pressure is not more than 5MPa, the friction coefficient can be controlled below 0.1, and the problem that the actual stress state and the design stress state of the structure are inconsistent due to overlarge compression deformation of the sliding pair and insufficient durability of the sliding pair in the prior art is solved.
The above embodiments only express specific embodiments of the present application, and the description is specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (10)
1. The utility model provides a sliding pair structure between steel construction contact surface which characterized in that: it is vice under vice and the slip including sliding, it is vice including first steel construction (3) to slide, fixedly connected with mirror surface level corrosion resistant plate (4) are gone up in first steel construction (3), the coating has emollient on mirror surface level corrosion resistant plate (4), it is vice including second steel construction (1) to slide down, be provided with two ingredient graphite alkene modified fluorocarbon paint coating (2) on second steel construction (1), mirror surface level corrosion resistant plate (4) and two ingredient graphite alkene modified fluorocarbon paint coating (2) contact.
2. The sliding pair structure between the contact surfaces of the steel structures as claimed in claim 1, wherein: a plurality of cylindrical grooves (5) are arranged on the sliding lower pair in an interlaced mode, lubricating agents are arranged in the cylindrical grooves (5), the diameter of each cylindrical groove (5) is equal to the clear distance between adjacent cylindrical grooves (5), and the depth of each cylindrical groove (5) is 2-4 mm.
3. The sliding pair structure between the contact surfaces of the steel structures as claimed in claim 2, wherein: the lubricant is silicone grease.
4. The sliding pair structure between the contact surfaces of the steel structures as claimed in claim 1, wherein: the two-component graphene modified fluorocarbon paint coating (2) is arranged on the second steel structure (1) in a cold spraying mode, and the thickness of the two-component graphene modified fluorocarbon paint coating (2) is 100-150 micrometers.
5. The sliding pair structure between the contact surfaces of the steel structures as claimed in claim 1, wherein: the surface roughness Ra of the mirror surface-level stainless steel plate (4) is 0.1-0.2 mu m, the surface treatment of the second steel structure (1) adopts Sa2.5 surface treatment grade, and the height Rz of the microscopic unevenness ten points is less than or equal to 40 mu m.
6. The method for preparing the two-component graphene modified fluorocarbon paint coating according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:
step 1: the initiator, the epoxy resin and the fluorocarbon resin are mixed according to the proportion of 1: (4-5): (5-6) and uniformly stirring to obtain fluorocarbon modified resin;
step 2: mixing graphene and a dispersing agent according to the proportion of 1: (14-15) mixing and uniformly stirring the components in a weight ratio to obtain a graphene solution;
and step 3: mixing water-soluble color paste and various additives in soft water according to a certain proportion, and uniformly stirring to form mixed slurry, wherein the mass ratio of the soft water to the water-soluble color paste to the additives is 1: (0.05-0.08): (0.03-0.04);
and 4, step 4: mixing the fluorocarbon modified resin, the graphene solution and the mixed slurry obtained in the steps 1, 2 and 3, grinding the mixture to be less than 30 micrometers, pressurizing and filtering the material liquid after grinding is finished, and then ultrasonically defoaming the material liquid to obtain the double-component graphene modified fluorocarbon paint main paint;
and 5: and (3) mixing the two-component graphene modified fluorocarbon paint main paint prepared in the step (4) with a curing agent according to the mass ratio of 1 (0.05-0.1), uniformly stirring, and spraying on a second steel structure (1) to form a two-component graphene modified fluorocarbon paint coating (2).
7. The sliding pair structure between the contact surfaces of the steel structures as claimed in claim 6, wherein: the initiator in the step 1 is sodium persulfate and sodium nitrite.
8. The sliding pair structure between the contact surfaces of the steel structures as claimed in claim 6, wherein: in the step 2, the dispersing agent is silicone oil.
9. The sliding pair structure between the contact surfaces of the steel structures as claimed in claim 6, wherein: the various auxiliary agents in the step 3 include, but are not limited to, a defoaming agent, a film forming auxiliary agent, a compatilizer and a stabilizer, wherein the defoaming agent is a polyether defoaming agent or a silicon defoaming agent, the film forming auxiliary agent is propylene glycol methyl ether acetate, the stabilizer is sodium alginate, and the compatilizer is sodium bicarbonate.
10. The sliding pair structure between the contact surfaces of the steel structures as claimed in claim 6, wherein: in the step 5, the curing agent is ammonium chloride.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892944Y (en) * | 2006-03-23 | 2007-04-25 | 上海市政工程设计研究院 | Combined friction pairs for track beam bearing |
| CN102635068A (en) * | 2012-04-26 | 2012-08-15 | 上海亿霖润滑材料有限公司 | Lubricating structure between saddle and base body of bridge and lubricating method |
| CN202705888U (en) * | 2012-06-21 | 2013-01-30 | 成都市新筑路桥机械股份有限公司 | Supporting seat |
| CN104194585A (en) * | 2014-09-18 | 2014-12-10 | 周诚 | Graphene-modified resin powder coating and production process thereof |
| CN104631321A (en) * | 2015-01-30 | 2015-05-20 | 武汉船用机械有限责任公司 | Suspension bridge main rope saddle sliding pair and machining method thereof |
| CN105400314A (en) * | 2015-11-14 | 2016-03-16 | 合肥标兵凯基新型材料有限公司 | Corrosion-resistance fluorocarbon resin coating |
| CN108003751A (en) * | 2017-12-22 | 2018-05-08 | 江苏波迩德特种材料科技有限公司 | A kind of nanoscale wear-resisting weather-proof modified coating and preparation method thereof |
| WO2018108015A1 (en) * | 2016-12-15 | 2018-06-21 | 深圳大学 | Graphene modified inorganic coating and preparation method therefor |
| CN109852194A (en) * | 2019-01-08 | 2019-06-07 | 山西大同大学 | A kind of graphene oxide modified water-soluble fluororesin and aqueous epoxy resins composite coating |
| CN110183938A (en) * | 2019-06-14 | 2019-08-30 | 山东中卓环保能源科技有限公司 | Graphene anticorrosive paint and its production technology and the heat collector for being coated with the coating |
| CN217419315U (en) * | 2022-05-16 | 2022-09-13 | 佛山市建盈发展有限公司 | Sliding pair structure between steel structure contact surfaces |
-
2022
- 2022-05-16 CN CN202210529654.8A patent/CN114753250A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892944Y (en) * | 2006-03-23 | 2007-04-25 | 上海市政工程设计研究院 | Combined friction pairs for track beam bearing |
| CN102635068A (en) * | 2012-04-26 | 2012-08-15 | 上海亿霖润滑材料有限公司 | Lubricating structure between saddle and base body of bridge and lubricating method |
| CN202705888U (en) * | 2012-06-21 | 2013-01-30 | 成都市新筑路桥机械股份有限公司 | Supporting seat |
| CN104194585A (en) * | 2014-09-18 | 2014-12-10 | 周诚 | Graphene-modified resin powder coating and production process thereof |
| CN104631321A (en) * | 2015-01-30 | 2015-05-20 | 武汉船用机械有限责任公司 | Suspension bridge main rope saddle sliding pair and machining method thereof |
| CN105400314A (en) * | 2015-11-14 | 2016-03-16 | 合肥标兵凯基新型材料有限公司 | Corrosion-resistance fluorocarbon resin coating |
| WO2018108015A1 (en) * | 2016-12-15 | 2018-06-21 | 深圳大学 | Graphene modified inorganic coating and preparation method therefor |
| CN108003751A (en) * | 2017-12-22 | 2018-05-08 | 江苏波迩德特种材料科技有限公司 | A kind of nanoscale wear-resisting weather-proof modified coating and preparation method thereof |
| CN109852194A (en) * | 2019-01-08 | 2019-06-07 | 山西大同大学 | A kind of graphene oxide modified water-soluble fluororesin and aqueous epoxy resins composite coating |
| CN110183938A (en) * | 2019-06-14 | 2019-08-30 | 山东中卓环保能源科技有限公司 | Graphene anticorrosive paint and its production technology and the heat collector for being coated with the coating |
| CN217419315U (en) * | 2022-05-16 | 2022-09-13 | 佛山市建盈发展有限公司 | Sliding pair structure between steel structure contact surfaces |
Non-Patent Citations (1)
| Title |
|---|
| 庄军生: "《桥梁支座（第四版）》", 30 November 2015, 中国铁道出版社 * |
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