CN105666980A - Modified UHMWPE (ultra-high molecular weight polyethylene) isobaric sintering method for spherical bearing of railway bridge and structure of spherical bearing of railway bridge - Google Patents
Modified UHMWPE (ultra-high molecular weight polyethylene) isobaric sintering method for spherical bearing of railway bridge and structure of spherical bearing of railway bridge Download PDFInfo
- Publication number
- CN105666980A CN105666980A CN201610071515.XA CN201610071515A CN105666980A CN 105666980 A CN105666980 A CN 105666980A CN 201610071515 A CN201610071515 A CN 201610071515A CN 105666980 A CN105666980 A CN 105666980A
- Authority
- CN
- China
- Prior art keywords
- molecular weight
- agglutinant
- high molecular
- weight polyethylene
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/07—Parts immersed or impregnated in a matrix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/712—Weather resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/10—Trains
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/40—Plastics
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Architecture (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a modified UHMWPE (ultra-high molecular weight polyethylene) isobaric sintering method for a spherical bearing of a railway bridge and a structure. The method comprises steps as follows: an agglutinant is heated to be molten; the surface of carbon fiber reinforced ultra-high molecular weight polyethylene (CFWPE) is heated to be molten or is passively heated to be molten by means of the agglutinant in a heat state, and two molten masses are mutually attached; the surface of a substrate is heated or is heated by the agglutinant in a molten state, and then the substrate is bonded with the agglutinant; a composite layer structure is formed after cooling and curing. The invention further provides the structure of a spherical bearing friction pair of the railway bridge. The structure comprises the substrate, the agglutinant and a sliding plate in sequence. The sintering method is creatively applied to the bearing industry of the high-speed railway, the CFWPE is connected with the friction pair mechanism of the substrate very firmly, and the bonding strength is high; the climate change resistance is high, and the phenomenon of degumming can be avoided after long-term use.
Description
Technical field
The invention belongs to railroad bridge spherical bearing technical field, relate to the carbon fibre in the sintering support plate of railroad bridge spherical bearing and strengthen the isobaric sintering technology of ultra-high molecular weight polyethylene (CFWPE), specifically a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process and structure.
Background technology
In existing railroad bridge spherical bearing, friction pair is made up of with modified Teflon or High molecular weight polyethylene corrosion resistant plate. Modified Teflon or modified high-molecular weight northylen are connected with the base in railroad bridge spherical bearing, and modified Teflon or modified high-molecular weight northylen have with the undersetting connected mode in railroad bridge spherical bearing: bolt fastens; Bond with binding agent under room temperature. Owing to the bearing capacity of railroad bridge spherical bearing is relatively big, act on the pressure on bridge movable bearing support friction pair also relatively big, between 20-45 MPa. Bigger pressure makes binding agent or screw be easily deformed.
Long service life due to railroad bridge spherical bearing, it is common that 10 years to 60 years. The easy degeneration of longer time chien shih binding agent was lost efficacy. The reciprocating impact being subject to due to railroad bridge spherical bearing is relatively big, and impact acceleration reaches 0.1G, causes the connection bonding failure of the modified Teflon in bridge movable bearing support or modified high-molecular weight northylen and base, and bolt often loosens. Modified Teflon or modified high-molecular weight northylen come off from base and happen occasionally. These defects can have a strong impact on the operation safety of high ferro, has to be solved.
Summary of the invention
The present invention solves existing issue, it is desirable to provide a kind of railroad bridge spherical bearing modified high-molecular weight northylen equipressure sintering method, agglutinant and structure.
Technical scheme includes a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process, comprises the steps of:
Step one, adds heat fusing by agglutinant; Carbon fibre strengthens ultra-high molecular weight polyethylene (CFWPE) surface add heat fusing or use hot agglutinant to make it passively heat and melt, then above two molten mass is fitted mutually;
Step 2, heats substrate surface or makes it be melted the heating of the agglutinant of state, then bonding with agglutinant;
Step 3, cooling, solidification also form the lamination layer structure being followed successively by substrate, agglutinant, CFWPE layer.
As preferably, in step 2, substrate being first processed into required shape, substrate surface is carried out coarse process, the substrate surface that cleaning treatment is crossed forms it into fresh matrix face; Then it is coated with CFWPE the surface of agglutinant paving.
Wherein, being spread the agglutinant being coated with is overheated molten condition, and CFWPE is pressurizeed, solid shape, and cooling simultaneously makes agglutinant cooling curing, finally gives the finished product of bonding compound.
Wherein, being spread the agglutinant being coated with is room temperature state, and the substrate surface that substrate to be coated with is heated, and waits that CFWPE is pressurizeed after dissolving by agglutinant again, and solid shape, cooling simultaneously makes agglutinant solidify, and finally gives sintered combined finished product.
Wherein, the mode that the substrate surface that substrate to be coated with is heated is heat radiation or electromagnetic induction, and the surface temperature of substrate heats to 80-250 DEG C, heats thickness 0.5-20mm.
As preferably, in step 3, the block at CFWPE adds the pressure of 0.01-3MPa, keeps pressure constant, solidifies agglutinant; After the surface temperature of substrate is lower than 60 DEG C, removes the pressure being added on CFWPE, namely complete the compound of whole different materials.
As preferably, CFWPE used includes: the molecular weight polyethylene molecule content 50-98% more than 6,000,000; Polymerized ethylene content 5-30% less than 6,000,000 molecular weight; Additive: Graphene and/or graphite and/or metal powder and/or ceramics and/or carbon fiber and/or ceramic fibre and/or organic fiber, content 2-30%.
As preferably, agglutinant includes: ethylene-maleic acid content 30-60%, ethylenediamine 5-15%, dibutyl carboxylic acid 5-15%, and surplus is Colophonium and other additives.
Wherein, modified ultra-high molecular weight polyethylene (CFWPE) or ultra-high molecular weight polyethylene or polyethylene are tabular or graininess or Powdered.
The present invention also provides for the structure of a kind of railroad bridge spherical bearing friction pair, is followed successively by substrate, agglutinant, slide plate.
Wherein, the one side of substrate and agglutinant laminating is plane or concave spherical surface or convex spherical or compromise face.
Wherein, substrate is provided with groove and/or ridge ridge.
Wherein, the material of substrate is the one in ferrum, rustless steel, ferroalloy, aluminium alloy, magnesium alloy, composite.
Wherein, slide plate material is the one in modified ultra-high molecular weight polyethylene (CFWPE), ultra-high molecular weight polyethylene, polyethylene.
Relative to prior art, sintering method is creatively applied to the bearing industry of high ferro by the present invention, method under this invention and make the connection of the friction pair mechanism of CFWPE and substrate very firmly, adhesion strength big; Weatherability changing capability is strong, and long-time use does not have degumming phenomenon, serves beyond thought advantageous effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of invention;
Fig. 2 is the structural representation of one embodiment of invention.
Wherein, 1 is slide plate, and 2 is agglutinant, and 3 is substrate.
Detailed description of the invention
Embodiment (one)
Referring to Fig. 1, the present embodiment is the friction pair structure producing railroad bridge spherical bearing, and the structure of product includes being followed successively by substrate, agglutinant, carbon fibre enhancing ultra-high molecular weight polyethylene (CFWPE). Wherein, substrate is circular arc, and material is rustless steel.
Wherein as preferably, the one side of the agglutinant laminating of substrate sum is set to plane or concave spherical surface or convex spherical or compromise face, it is also possible to set groove and/or ridge ridge on substrate.Such the bonded area that can increase bi-material is set, concurrently forms mosaic texture, increase the binding ability of bi-material
Process this kind of structure, first use the agglutinant containing, for example lower formula:
Ethylene-maleic acid content 35%, ethylenediamine 23%, dibutyl carboxylic acid 12%, polyethylene 20%, surplus is Colophonium and acetylacetone,2,4-pentanedione has 10% altogether.
CFWPE used by the present embodiment includes: the molecular weight polyethylene molecule content 72% more than 6,000,000; Polymerized ethylene content 23% less than 6,000,000 molecular weight; Additive: Graphene and/or graphite and/or metal powder and/or ceramics and/or carbon fiber and/or ceramic fibre and/or organic fiber, content 5%.
After configuration agglutinant completes, the processing method implementing to comprise the steps of:
Step one, adds heat fusing by agglutinant; Carbon fibre strengthens ultra-high molecular weight polyethylene (CFWPE) surface add heat fusing or use hot agglutinant to make it passively heat and melt, then above two molten mass is fitted mutually;
Step 2, is first processed into substrate required shape, substrate surface is carried out coarse process, and the substrate surface that cleaning treatment is crossed forms it into fresh matrix face; Then it is coated with agglutinant the surface of CFWPE paving.
Substrate surface heated or makes it be melted the heating of the agglutinant of state, then bonding with agglutinant;
Being spread the agglutinant being coated with is pulverulence, the substrate surface that substrate to be coated with is heated 180 DEG C, continues 15S, waits that CFWPE is pressurizeed after dissolving by agglutinant again, pressure 0.3MPa, continue 50S, with solid shape, cool down simultaneously, it is cooled to less than 60 degrees Celsius, pressure recovery, to 0, makes agglutinant solidify, and finally gives sintered combined finished product.
Step 3, cooling, solidification also form the lamination layer structure being followed successively by substrate, agglutinant, CFWPE.
Block at CFWPE adds the pressure of 0.3MPa, keeps pressure constant, solidifies agglutinant; After the surface temperature of substrate is lower than 60 DEG C, removes the pressure being added on CFWPE, namely complete the compound of whole different materials.
Finally give the product of the present embodiment, through related experiment, bonding strength is improved more than three times, with the obvious advantage.
Embodiment (two)
Referring to Fig. 2, the present embodiment is the friction pair structure producing railroad bridge spherical bearing, and the structure of product includes being followed successively by substrate, agglutinant, carbon fibre enhancing ultra-high molecular weight polyethylene (CFWPE). Wherein, the upper surface of substrate is plane, and material is aluminium.
Wherein as preferably, the one side of the agglutinant laminating of substrate sum is set to plane or concave spherical surface or convex spherical or compromise face, it is also possible to set groove and/or ridge ridge on substrate. Such the bonded area that can increase bi-material is set, concurrently forms mosaic texture, increase the binding ability of bi-material
Process this kind of structure, first use the agglutinant containing, for example lower formula:
Ethylene-maleic acid content 40%, ethylenediamine 20%, dibutyl carboxylic acid 12%, polyethylene 18%, surplus is Colophonium and acetylacetone,2,4-pentanedione has 10% altogether
CFWPE used by the present embodiment includes: the molecular weight polyethylene molecule content 50% more than 6,000,000; Polymerized ethylene content 30% less than 6,000,000 molecular weight; Additive: Graphene and/or graphite and/or metal powder and/or ceramics and/or carbon fiber and/or ceramic fibre and/or organic fiber, content 20%.
After configuration agglutinant completes, the processing method implementing to comprise the steps of:
Step one, adds heat fusing by agglutinant;Carbon fibre strengthens ultra-high molecular weight polyethylene (CFWPE) surface add heat fusing or use hot agglutinant to make it passively heat and melt, then above two molten mass is fitted mutually;
Step 2, is first processed into substrate required shape, substrate surface is carried out coarse process, and the substrate surface that cleaning treatment is crossed forms it into fresh matrix face; Then it is coated with agglutinant the surface of CFWPE paving.
Substrate surface heated or makes it be melted the heating of the agglutinant of state, then bonding with agglutinant;
Being spread the agglutinant being coated with is graininess, the substrate surface that substrate to be coated with is heated 220 DEG C, continues 10S, waits that CFWPE is pressurizeed after dissolving by agglutinant again, pressure 0.3MPa, continue 35S, with solid shape, cool down simultaneously, it is cooled to less than 60 degrees Celsius, pressure recovery, to 0, makes agglutinant solidify, and finally gives sintered combined finished product.
Step 3, cooling, solidification also form the lamination layer structure being followed successively by substrate, agglutinant, CFWPE.
Block at CFWPE adds the pressure of 0.3MPa, keeps pressure constant, solidifies agglutinant; After the surface temperature of substrate is lower than 60 DEG C, removes the pressure being added on CFWPE, namely complete the compound of whole different materials.
Finally give the product of the present embodiment, through related experiment, bonding strength is improved more than three times, with the obvious advantage.
Embodiment (three)
The present embodiment is the friction pair structure producing railroad bridge spherical bearing, and the structure of product includes being followed successively by substrate, agglutinant, carbon fibre enhancing ultra-high molecular weight polyethylene (CFWPE). Wherein, the upper surface of substrate is plane, and material is ferrum.
Wherein as preferably, the one side of the agglutinant laminating of substrate sum is set to plane or concave spherical surface or convex spherical or compromise face, it is also possible to set groove and/or ridge ridge on substrate. Such the bonded area that can increase bi-material is set, concurrently forms mosaic texture, increase the binding ability of bi-material
Process this kind of structure, first use the agglutinant containing, for example lower formula:
Ethylene-maleic acid content 38%, ethylenediamine 20%, dibutyl carboxylic acid 12%, polyethylene 22%, surplus is Colophonium 8%
CFWPE used by the present embodiment includes: the molecular weight polyethylene molecule content 85% more than 6,000,000; Polymerized ethylene content 5% less than 6,000,000 molecular weight; Additive: Graphene and/or graphite and/or metal powder and/or ceramics and/or carbon fiber and/or ceramic fibre and/or organic fiber, content 10%.
After configuration agglutinant completes, the processing method implementing to comprise the steps of:
Step one, adds heat fusing by agglutinant; Carbon fibre strengthens ultra-high molecular weight polyethylene (CFWPE) surface add heat fusing or use hot agglutinant to make it passively heat and melt, then above two molten mass is fitted mutually;
Step 2, is first processed into substrate required shape, substrate surface is carried out coarse process, and the substrate surface that cleaning treatment is crossed forms it into fresh matrix face; Then it is coated with agglutinant the surface of CFWPE paving.
Substrate surface heated or makes it be melted the heating of the agglutinant of state, then bonding with agglutinant;
Being spread the agglutinant being coated with is sheet-like state, the substrate surface that substrate to be coated with is heated 150 DEG C, continues 30S, waits that CFWPE is pressurizeed after dissolving by agglutinant again, pressure 0.5MPa, continue 80S, with solid shape, cool down simultaneously, it is cooled to less than 60 degrees Celsius, pressure recovery, to 0, makes agglutinant solidify, and finally gives sintered combined finished product.
Step 3, cooling, solidification also form the lamination layer structure being followed successively by substrate, agglutinant, CFWPE.
Block at CFWPE adds the pressure of 0.3MPa, keeps pressure constant, solidifies agglutinant; After the surface temperature of substrate is lower than 60 DEG C, pressure recovery keeps 20S to return back to 0 to 0.2MPa, namely completes the compound of whole different materials.
Finally give the product of the present embodiment, through related experiment, bonding strength is improved more than three times, with the obvious advantage.
Need special feature, can be formed with polyethylene under the maleic anhydride melt state in agglutinant and connect by-reaction, form the link of molecular structure. Complex reaction can be formed with the ferrum of substrate surface or aluminum under maleic anhydride melt state simultaneously, form linking of molecular structure with substrate surface.
Polyethylene in agglutinant when molten condition can with ultra-high molecular weight polyethylene formed molten and. The ferrum or the aluminum that form substrate surface after cooling link with maleic anhydride complexation, and maleic anhydride and polyethylene form grafting and link, polyethylene and ultra-high molecular weight polyethylene or modified ultra-high molecular weight polyethylene formed molten and molecule link structure. Completing substrate surface is linked by the high intensity of various chemical bonds with ultra-high molecular weight polyethylene or modified ultra-high molecular weight polyethylene plate.
The material (such as modified ultra-high molecular weight polyethylene CFWPE, polyethylene) of the polyethylene kind adopted in the present invention. It is polyethylene material, the length of difference only strand, have no impact so substituting, for row, these are easy to expect for those skilled in the art.
The present invention utilizes specific formula, and specific agglutinant, specific technique obtain the said goods, and this architecture invention is creatively applied in this industry of bridge pad by we. Changing one's profession in the industry, do not having relevant application and practice before.
The formula of the present invention, agglutinant formula and technique three, complement each other, mutually support, obtains the technique effect with substantial advance after enforcement. We make the new construction obtained disclosure satisfy that requirements in " TB/T3320-2013 " standard by the technological innovation fusion of this 3 aspect, thus obtaining brand-new product structure.
The connection of the friction pair mechanism become according to the above embodiment of the present invention very firmly, adhesion strength big; Weatherability changing capability is strong, and use does not have degumming phenomenon for a long time.
Above are only the preferred embodiment of the present invention, it is noted that for the ordinary skill technical staff in the industry, can be improved by some and replace under principles of the invention, this improvement and replacement also should be regarded as protection scope of the present invention.
Claims (14)
1. a railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process, it is characterised in that comprise the steps of:
Step one, adds heat fusing by agglutinant; The surface of modified ultra-high molecular weight polyethylene (CFWPE) or ultra-high molecular weight polyethylene or polyethylene added heat fusing or uses hot agglutinant to make it passively heat and melt, then above two molten mass being fitted mutually;
Step 2, heats substrate surface or makes it be melted the heating of the agglutinant of state, then bonding with agglutinant;
Persistent pressure 0.01-1 MPa, keep pressure constant; Cool down simultaneously;
Step 3, cooling, solidification also form the lamination layer structure being followed successively by substrate, agglutinant, slide plate.
2. a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process according to claim 1, it is characterized in that: in step 2, first substrate is processed into required shape, substrate surface is carried out coarse process, and the substrate surface that cleaning treatment is crossed forms it into fresh matrix face;Then it is coated with CFWPE or ultra-high molecular weight polyethylene or polyethylene the surface of agglutinant paving.
3. a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process according to claim 2, it is characterized in that: being spread the agglutinant being coated with is overheated molten condition, CFWPE or ultra-high molecular weight polyethylene or polyethylene are pressurizeed, solid shape, cooling simultaneously makes agglutinant cooling curing, finally gives the finished product of bonding compound.
4. a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process according to claim 2, it is characterized in that: being spread the agglutinant being coated with is room temperature state, the substrate surface that substrate to be coated with is heated, wait that CFWPE or ultra-high molecular weight polyethylene or polyethylene are pressurizeed after dissolving by agglutinant again, solid shape, cooling simultaneously makes agglutinant solidify, and finally gives sintered combined finished product.
5. a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process according to claim 4, it is characterized in that: the mode that the substrate surface that substrate to be coated with is heated is heat radiation or electromagnetic induction, the surface temperature of substrate heats to 80-250 DEG C, heats thickness 0.5-20mm.
6. a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process according to claim 1, it is characterized in that: in step 3, block at CFWPE or ultra-high molecular weight polyethylene or polyethylene adds the pressure of 0.01-3MPa, keeps pressure constant, solidifies agglutinant; After the surface temperature of substrate is lower than 60 DEG C, remove be added in CFWPE or or ultra-high molecular weight polyethylene or polyethylene on pressure, namely complete the compound of whole different materials.
7. a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process according to claim 1, it is characterised in that: CFWPE used includes:
The molecular weight polyethylene molecule content 50-98% more than 6,000,000;
Polymerized ethylene content 5-30% less than 6,000,000 molecular weight;
Additive: Graphene and/or graphite and/or metal powder and/or ceramics and/or carbon fiber and/or ceramic fibre and/or organic fiber, content 2-30%.
8. a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process according to claim 1, it is characterized in that: described agglutinant includes: ethylene-maleic acid content 30-60%, ethylenediamine 5-15%, dibutyl carboxylic acid 5-15%, polyethylene 5-15%, surplus is Colophonium and other additives.
9. a kind of railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process according to claim 1, it is characterised in that: modified ultra-high molecular weight polyethylene (CFWPE) or ultra-high molecular weight polyethylene or polyethylene are tabular or graininess or Powdered.
10. the structure of a railroad bridge spherical bearing friction pair, it is characterised in that: it is followed successively by substrate, agglutinant, slide plate.
11. the structure of a kind of railroad bridge spherical bearing friction pair according to claim 10, it is characterised in that: the one side of substrate and agglutinant laminating is plane or concave spherical surface or convex spherical or compromise face.
12. the structure of a kind of railroad bridge spherical bearing friction pair according to claim 11 or 10, it is characterised in that: substrate is provided with groove and/or ridge ridge.
13. the structure of a kind of railroad bridge spherical bearing friction pair according to claim 10, it is characterised in that: the material of substrate is the one in ferrum, ferroalloy, aluminium alloy.
14. the structure of a kind of railroad bridge spherical bearing friction pair according to claim 10, it is characterised in that: slide plate material is the one in modified ultra-high molecular weight polyethylene (CFWPE), ultra-high molecular weight polyethylene, polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071515.XA CN105666980B (en) | 2016-02-01 | 2016-02-01 | Railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process and its structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071515.XA CN105666980B (en) | 2016-02-01 | 2016-02-01 | Railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process and its structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105666980A true CN105666980A (en) | 2016-06-15 |
| CN105666980B CN105666980B (en) | 2018-03-30 |
Family
ID=56303282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610071515.XA Active CN105666980B (en) | 2016-02-01 | 2016-02-01 | Railroad bridge spherical bearing modified ultra-high molecular weight polyethylene equipressure sintering process and its structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105666980B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111748141A (en) * | 2020-08-08 | 2020-10-09 | 深州市工程塑料有限公司 | Sliding plate for seismic isolation and reduction support and preparation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396256Y (en) * | 1999-10-15 | 2000-09-13 | 南京晨光东螺波纹管有限公司 | Low friction coefficient sliding supporting seat using polytetrafluorethylene sintered plate as friction pairs |
| EP1577444A1 (en) * | 2004-03-19 | 2005-09-21 | Robert Chartier Application (RCA) | Process for forming a flexible seal for civil engineering works |
| WO2006042566A1 (en) * | 2004-10-19 | 2006-04-27 | Maurer Söhne Gmbh & Co. Kg | Bearing and use of uhmwpe in bearings in civil engineering |
| CN1884362A (en) * | 2006-05-30 | 2006-12-27 | 嘉兴中达自润轴承工业有限公司 | Bridge bearing gliding material and method for preparing the same |
| CN201517196U (en) * | 2009-07-09 | 2010-06-30 | 洛阳双瑞特种装备有限公司 | Spherical support for railway simply-supported bridge |
| CN104816516A (en) * | 2014-10-24 | 2015-08-05 | 中申（上海）管道工程股份有限公司 | Technology for bonding modified composite polytetrafluoroethylene and steel plate by sintering method and application |
-
2016
- 2016-02-01 CN CN201610071515.XA patent/CN105666980B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396256Y (en) * | 1999-10-15 | 2000-09-13 | 南京晨光东螺波纹管有限公司 | Low friction coefficient sliding supporting seat using polytetrafluorethylene sintered plate as friction pairs |
| EP1577444A1 (en) * | 2004-03-19 | 2005-09-21 | Robert Chartier Application (RCA) | Process for forming a flexible seal for civil engineering works |
| WO2006042566A1 (en) * | 2004-10-19 | 2006-04-27 | Maurer Söhne Gmbh & Co. Kg | Bearing and use of uhmwpe in bearings in civil engineering |
| CN1884362A (en) * | 2006-05-30 | 2006-12-27 | 嘉兴中达自润轴承工业有限公司 | Bridge bearing gliding material and method for preparing the same |
| CN201517196U (en) * | 2009-07-09 | 2010-06-30 | 洛阳双瑞特种装备有限公司 | Spherical support for railway simply-supported bridge |
| CN104816516A (en) * | 2014-10-24 | 2015-08-05 | 中申（上海）管道工程股份有限公司 | Technology for bonding modified composite polytetrafluoroethylene and steel plate by sintering method and application |
Non-Patent Citations (1)
| Title |
|---|
| 丁浩: "《塑料工业实用手册（第二版）》", 31 August 2000, 北京工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111748141A (en) * | 2020-08-08 | 2020-10-09 | 深州市工程塑料有限公司 | Sliding plate for seismic isolation and reduction support and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105666980B (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Microstructure and brazing mechanism of porous Si3N4/Invar joint brazed with Ag-Cu-Ti/Cu/Ag-Cu multi-layered filler | |
| KR100917851B1 (en) | Welding techniques for polymer or polymer composite product | |
| US6689470B1 (en) | Thermal protection system | |
| Butt et al. | Microstructure and mechanical properties of dissimilar pure copper foil/1050 aluminium composites made with composite metal foil manufacturing | |
| KR101054462B1 (en) | High strength dissimilar metal joining method between a steel-based alloy using an intermediate layer and a titanium or titanium-based alloy having a joint strength exceeding the strength of the base metal | |
| US8557383B2 (en) | Method of producing a material composite | |
| JP6875294B2 (en) | Infiltration iron material | |
| CN102407408A (en) | Welding joint suitable for welding dissimilar metal materials and preparation method thereof | |
| CN105585326B (en) | A kind of technique of nanometer of foil diffusion connection carbon/silicon carbide ceramic matrix composite | |
| CN105585328B (en) | A kind of technique of nanometer of foil connection carbon/silicon carbide ceramic matrix composite and metal | |
| CN103894719A (en) | Method for connecting high-volume-fraction silicon carbide particle reinforcement aluminum matrix composite and titanium alloy | |
| CN105149717A (en) | Silicon-based ceramic surface metallization method | |
| CN104259466A (en) | Method for connecting copper-based power metallurgy composite materials and steel | |
| Appendino et al. | Direct joining of CFC to copper | |
| Yi et al. | Differences in microstructure and properties of C/C composites brazed with Ag-Cu-Ti and Ni-Cr-P-Ti pasty brazing filler | |
| US20200231769A1 (en) | Metallic polymer bonding and articles of manufacture | |
| US20060021728A1 (en) | Method and device for producing a reinforced component by thixoforming | |
| CN105666980A (en) | Modified UHMWPE (ultra-high molecular weight polyethylene) isobaric sintering method for spherical bearing of railway bridge and structure of spherical bearing of railway bridge | |
| CN101545087B (en) | Micro-composite Fe-Al/Al2O3 ceramic coating and preparation method thereof | |
| CN105237791B (en) | A kind of method for preparing cladding coating on fibre reinforced thermoplastic composite surface using laser assisted SHS techniques | |
| JP2007291432A (en) | Metal matrix composite material, and metal matrix composite structure | |
| US7588179B2 (en) | Bonding of carbon fibers to metal inserts for use in composites | |
| Liu et al. | Effect of Ti content on microstructure and strength of Si3N4/Si3N4 joints brazed with Cu–Pd–Ti filler metals | |
| CN102371842A (en) | Carbon fiber wheel frame with ceramic braking parts and manufacturing method thereof | |
| CN104475702B (en) | The ZrO connected based on infiltration2the preparation method of/hot die steel composite die material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190122 Address after: 116011 He Tun Village, Changxing Island Economic Zone, Dalian, Liaoning Province (formerly He Tun Primary School) Patentee after: Dot (Dalian) Industrial Co., Ltd. Address before: Room 902-171, 323 Guoding Road, Yangpu District, Shanghai, 2003 Patentee before: West Shen (Shanghai) new Mstar Technology Ltd |
|
| TR01 | Transfer of patent right |