CN109895420A - A kind of integral composite material sleeper and its manufacturing method - Google Patents
A kind of integral composite material sleeper and its manufacturing method Download PDFInfo
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- CN109895420A CN109895420A CN201910218894.4A CN201910218894A CN109895420A CN 109895420 A CN109895420 A CN 109895420A CN 201910218894 A CN201910218894 A CN 201910218894A CN 109895420 A CN109895420 A CN 109895420A
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- Prior art keywords
- fiber
- composite material
- sleeper
- material sleeper
- density
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- 241001669679 Eleotris Species 0.000 title claims abstract description 189
- 239000002131 composite material Substances 0.000 title claims abstract description 145
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000000835 fiber Substances 0.000 claims abstract description 265
- 230000001965 increasing effect Effects 0.000 claims abstract description 24
- 230000007704 transition Effects 0.000 claims description 85
- 239000000463 material Substances 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 abstract description 5
- 206010061245 Internal injury Diseases 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 107
- 239000002585 base Substances 0.000 description 15
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 13
- 238000000465 moulding Methods 0.000 description 10
- 229920000570 polyether Polymers 0.000 description 9
- 239000004721 Polyphenylene oxide Substances 0.000 description 8
- 239000003063 flame retardant Substances 0.000 description 8
- 229920005862 polyol Polymers 0.000 description 8
- 150000003077 polyols Chemical class 0.000 description 8
- 239000006087 Silane Coupling Agent Substances 0.000 description 7
- -1 γ-aminopropyl Chemical group 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 239000004088 foaming agent Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 239000012948 isocyanate Substances 0.000 description 4
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
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- 239000003795 chemical substances by application Substances 0.000 description 3
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- JTYRXXKXOULVAP-UHFFFAOYSA-N 1,2-dibromo-3-phenoxybenzene Chemical compound BrC1=CC=CC(OC=2C=CC=CC=2)=C1Br JTYRXXKXOULVAP-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- FANGQVKSFHFPBY-UHFFFAOYSA-N 2-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound OC(=O)C(C)C1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 FANGQVKSFHFPBY-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- HXRAIVCWVIJIKB-UHFFFAOYSA-N 2-butyl-n-octyl-n-phenylaniline Chemical class C=1C=CC=C(CCCC)C=1N(CCCCCCCC)C1=CC=CC=C1 HXRAIVCWVIJIKB-UHFFFAOYSA-N 0.000 description 2
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 2
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- 239000004604 Blowing Agent Substances 0.000 description 2
- DKANUPMAXRTHGE-UHFFFAOYSA-N C(CC)O[SiH3].[O] Chemical compound C(CC)O[SiH3].[O] DKANUPMAXRTHGE-UHFFFAOYSA-N 0.000 description 2
- BDKKLAMRIATMPA-UHFFFAOYSA-N C[SiH3].[O] Chemical compound C[SiH3].[O] BDKKLAMRIATMPA-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
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- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- VONWDASPFIQPDY-UHFFFAOYSA-N dimethyl methylphosphonate Chemical compound COP(C)(=O)OC VONWDASPFIQPDY-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 150000008282 halocarbons Chemical class 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
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- 150000002513 isocyanates Chemical class 0.000 description 2
- 239000003863 metallic catalyst Substances 0.000 description 2
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 2
- 125000002524 organometallic group Chemical group 0.000 description 2
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- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000000047 product Substances 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
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- 238000012360 testing method Methods 0.000 description 2
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- WZLFPVPRZGTCKP-UHFFFAOYSA-N 1,1,1,3,3-pentafluorobutane Chemical compound CC(F)(F)CC(F)(F)F WZLFPVPRZGTCKP-UHFFFAOYSA-N 0.000 description 1
- BZQKBFHEWDPQHD-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-[2-(2,3,4,5,6-pentabromophenyl)ethyl]benzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1CCC1=C(Br)C(Br)=C(Br)C(Br)=C1Br BZQKBFHEWDPQHD-UHFFFAOYSA-N 0.000 description 1
- BMVXCPBXGZKUPN-UHFFFAOYSA-N 1-hexanamine Chemical compound CCCCCCN BMVXCPBXGZKUPN-UHFFFAOYSA-N 0.000 description 1
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- ANHAEBWRQNIPEV-UHFFFAOYSA-N 2-chloroethyl dihydrogen phosphate Chemical class OP(O)(=O)OCCCl ANHAEBWRQNIPEV-UHFFFAOYSA-N 0.000 description 1
- LLUIQISTLAXOHC-UHFFFAOYSA-N 2-chloropropyl dihydrogen phosphate Chemical compound CC(Cl)COP(O)(O)=O LLUIQISTLAXOHC-UHFFFAOYSA-N 0.000 description 1
- SEILKFZTLVMHRR-UHFFFAOYSA-N 2-phosphonooxyethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOP(O)(O)=O SEILKFZTLVMHRR-UHFFFAOYSA-N 0.000 description 1
- HHDUMDVQUCBCEY-UHFFFAOYSA-N 4-[10,15,20-tris(4-carboxyphenyl)-21,23-dihydroporphyrin-5-yl]benzoic acid Chemical compound OC(=O)c1ccc(cc1)-c1c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc([nH]2)c(-c2ccc(cc2)C(O)=O)c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc1[nH]2 HHDUMDVQUCBCEY-UHFFFAOYSA-N 0.000 description 1
- 229920002748 Basalt fiber Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RHUYHJGZWVXEHW-UHFFFAOYSA-N Dimazine Natural products CN(C)N RHUYHJGZWVXEHW-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- DJOWTWWHMWQATC-KYHIUUMWSA-N Karpoxanthin Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1(O)C(C)(C)CC(O)CC1(C)O)C=CC=C(/C)C=CC2=C(C)CC(O)CC2(C)C DJOWTWWHMWQATC-KYHIUUMWSA-N 0.000 description 1
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
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- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
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- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
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- QKYQJGWRJWJDII-UHFFFAOYSA-N benzene-1,2-diol;2h-benzotriazole Chemical compound OC1=CC=CC=C1O.C1=CC=CC2=NNN=C21 QKYQJGWRJWJDII-UHFFFAOYSA-N 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- 229940043237 diethanolamine Drugs 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229940031098 ethanolamine Drugs 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
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- 230000001771 impaired effect Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- 238000006116 polymerization reaction Methods 0.000 description 1
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- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
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- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
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Landscapes
- Laminated Bodies (AREA)
Abstract
A kind of integral composite material sleeper and its manufacturing method.Contain fiber in the composite material sleeper, the density of the composite material sleeper increases from inside to outside in the radial direction the composite material sleeper, and the increase of the density of the composite material sleeper is by realizing the fiber content of the fiber in the composite material sleeper in increasing from inside to outside in the radial direction for the composite material sleeper.The surface strength of the integral composite material sleeper of the application is high, and the concentrfated load on sleeper surface can effectively be dispersed, to avoid the problem that surface layer is intact, internal injury, extends the service life of sleeper.
Description
Technical field
This application involves but be not limited to Transit Equipment technical field, it is compound to be particularly, but not limited to a kind of integral type
Material sleeper and its manufacturing method.
Background technique
In the railway system, sleeper is to transmit one of load, important component of firm track.The technical level and quality of sleeper
Superiority and inferiority directly affects the design and operational safety of railroad track.
Currently, the common sleeper of Railway Design is wooden sleeper and concrete sleeper.These two types of sleepers there are many deficiencies,
Such as wooden sleeper is perishable, the service life is short, raw material resources are in short supply；Concrete sleeper weight is big, easy fragmentation, damping difference etc..
In face of traditional material there are the problem of, novel composite material composite sleeper is by development and application, wherein being using one kind outstanding
Fibre-reinforced high molecular foamed composite composite sleeper.Composite sleeper made of the type composite material has density low, strong
Many advantages, such as degree is high, do not absorb water, ageing-resistant corrosion, it is important that there is the processing performance for being equal to timber, set convenient for engineering
Meter, site operation and applicating maintenance.
Application No. is the Chinese patents of CN200810140888.3 to disclose the formula of a kind of synthesis wooden sleeper and continuously shaped
Technique.In the application, often there is the phenomenon that being crushed by fastener to this type composite sleeper in upper surface, lower surface also often have by railway ballast or
The impaired problem of other hard object extrusions, leads to the sleeper lost of life.The reason of problems occur is that sleeper density is lower, is kept
Light-weight advantage, but when bearing uniformly distributed concentrfated load, easily damaged destruction.If improving sleeper density, sleeper weight meeting
Increase, is unfavorable for products application.It is reported that protective layer, but such protective layer multi-pass mistake can be increased on composite sleeper surface
Sleeper surface is arranged in the mode of secondary bonding, there are the problems in stress collection, there is the risk to fall off.In addition, increased protection
Layer is obvious with sleeper body density variation, when concentrfated load is transmitted to sleeper body, still has the phenomenon that stress concentration, leads to table
Sleeper long-time service cannot be completely secured in the problem of layer intact, internal injury.Therefore, there is the composite sleeper of protective layer also not
Seeing has practical application.
Summary of the invention
This application provides a kind of integral composite material sleeper and its manufacturing methods, solve composite sleeper surface strength
The problem of difference, easy damaged.
Specifically, this application provides a kind of integral composite material sleeper, contain fiber in the composite material sleeper,
The density of the composite material sleeper increases from inside to outside in the radial direction the composite material sleeper, and described compound
The increase of the density of material sleeper is by making the fiber content of the fiber in the composite material sleeper in the composite material rail
Pillow increases from inside to outside to realize in the radial direction.
In the embodiment of the present application, the composite material sleeper may include transition zone, and the fiber in the transition zone exists
The composite material sleeper can increase to the second fiber content by by the first fiber content from inside to outside in the radial direction
Formal distribution.
In the embodiment of the present application, the fiber in the transition zone is in the composite material sleeper in the radial direction from interior
To it is outer can be by the formal distribution for being linearly increasing to the second fiber content by the first fiber content.
In the embodiment of the present application, first fiber content can be linearly increasing to second fiber according to formula I
Content, formula I are as follows:
y1=k1x+b1
In formula, y1For the fiber content of tested point, unit %；
X is the distance between tested point and the inward flange of transition zone, unit m；
k1It is nonnegative number, unit 1/m for fiber content growth rate；
b1Within the scope of 2%-25%.
In the embodiment of the present application, the density of the transition zone can be linearly increasing according to formula II, formula II are as follows:
y2=k2x+b2
In formula, y2For the density of tested point, unit kg/m3；
X is the distance between tested point and the inward flange of transition zone, unit m；
k2It is nonnegative number, unit kg/m for the density increase rate of transition zone4；
b2Within the scope of 100-1200, unit kg/m3。
In the embodiment of the present application, the composite material sleeper can also include the first density layer and/or the second density layer,
The side close to the composite material sleeper center of the transition zone, second density layer is arranged in first density layer
The side far from the composite material sleeper center of the transition zone is set, and the fiber in first density layer is pressed
First fiber content is evenly distributed, and the fiber in second density layer is evenly distributed by the second fiber content.
In the embodiment of the present application, the composite material sleeper can successively include from inside to outside in radial directions described
First density layer and the transition zone.The thickness of first density layer can be the 1/ of the height of the composite material sleeper
, remaining as the transition zone.
In the embodiment of the present application, the composite material sleeper can successively include from inside to outside in radial directions described
Transition zone and second density layer.The thickness of the transition zone can be the 6/50-49/ of the height of the composite material sleeper
50, remaining as second density layer.
In the embodiment of the present application, the composite material sleeper can successively include institute on radial direction from inside to outside
State the first density layer, the transition zone and second density layer.The thickness of first density layer can be the composite wood
Expect the 1/10-9/10 of the height of sleeper, the thickness of the transition zone can be the 1/100- of the height of the composite material sleeper
22/50, remaining as second density layer.
In the embodiment of the present application, the composite material sleeper can successively include first from inside to outside in radial directions
Density layer, transition zone and the second density layer, the fiber in first density layer is evenly distributed by the first fiber content, described
Fiber in second density layer is evenly distributed by the second fiber content, and the fiber in the transition zone is equal by third fiber content
It is distributed evenly, the second fiber content described in third fiber content < described in the first fiber content <.
In the embodiment of the present application, first fiber content can be 2%-25%, and second fiber content can be with
For 17%-60%.
In the embodiment of the present application, the density of first density layer can be 100kg/m3-1200kg/m3, described second
The density of density layer can be 500kg/m3-1900kg/m3。
Present invention also provides the manufacturing methods of integral composite material sleeper as described above, which comprises
According to the density of desired composite material sleeper, fibre of the fiber in the composite material sleeper is calculated
Dimension hplc, and convert and obtain fiber content of the fiber on fiber architecture frame；
Fiber is passed through by fiber architecture on fiber architecture frame according to fiber content of the fiber on fiber architecture frame
It arranges yarn plate and carries out pre- distribution row yarn；
The fiber for passing through row's yarn plate is drawn to impregnating equipment, and reisn base material is made to impregnate the fiber；And
The fiber for being impregnated with reisn base material is formed, the integral composite material sleeper is obtained.
In the embodiment of the present application, described to may include: on fiber architecture frame by fiber architecture
Optionally, the fiber for forming the first density layer is equably arranged on the fiber architecture frame；
In the periphery for the fiber for forming first density layer, the fiber architecture of transition zone will be formed in the fiber architecture
On frame；
Optionally, in the periphery for the fiber for forming the transition zone, the fiber for forming the second density layer is equably arranged
On the fiber architecture frame.
The composite material sleeper of the application uses specific fiber architecture mode --- makes fine in the composite material sleeper
The fiber content of dimension increases from inside to outside in the radial direction the composite material sleeper, so that the composite material sleeper
Density is gradually increased to the high density on surface layer by internal low-density, is not only increased the intensity on surface layer, is also made the concentration on surface
Load has obtained effective dispersion, to avoid the problem that surface layer is intact, internal injury, extends the service life of sleeper.
The composite material sleeper of the application manufactures to obtain using integrally formed mode, belongs to the sleeper of integral type, avoids
Fall off risk existing for sleeper secondary bonding.
Other features and advantage will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood and implementing the application.The purpose of the application and other advantages can be by specifications, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical scheme, and constitutes part of specification, with this
The embodiment of application is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.
Fig. 1 is the cross-sectional view of the composite material sleeper of the embodiment of the present application.
Fig. 2 is the schematic diagram of the manufacturing process of the composite material sleeper of the embodiment of the present application.
Fig. 3 is the structural schematic diagram for applying for primary fiber row's yarn plate of embodiment.
Fig. 4 is the structural schematic diagram for applying for secondary stock row's yarn plate of embodiment.
Appended drawing reference in figure are as follows:
10- composite material sleeper the first density layer of 11-
12- transition zone the second density layer of 13-
14- fiber 15- resin
21- fiber architecture frame 22- fabric frame
23- fiber arranges yarn plate 231- primary fiber and arranges yarn plate
2311- once arranges yarn plate row yarn hole 2312- and once arranges yarn board mount
232- secondary stock arranges bis- row's yarn plates of yarn plate 2321- and arranges yarn hole
Bis- row's yarn board mount 24- impregnating equipments of 2322-
25- molding equipment 26- sawing device
Specific embodiment
For the purposes, technical schemes and advantages of the application are more clearly understood, below in conjunction with attached drawing to the application
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
This application provides a kind of integral composite material sleeper, fiber is contained in the composite material sleeper, it is described multiple
The density of condensation material sleeper increases from inside to outside in the radial direction the composite material sleeper, and the composite material rail
The increase of the density of pillow is by making the fiber content of the fiber in the composite material sleeper in the diameter of the composite material sleeper
Increase from inside to outside to realize on direction.
In this application, term " composite material sleeper " is defined as synthesizing rail by what fiber and reisn base material were formed
Pillow.
In this application, term " radial direction of sleeper " is defined as in the cross section of the length direction perpendicular to sleeper
On, from the center of cross section, (i.e. cornerwise intersection point) of square cross section is directed toward the direction at the edge of cross section.
It should be appreciated that in this application, " density of sleeper " refers to the density of local sleeper, can pass through local sleeper
Quality/part sleeper volume be calculated, therefore " density of sleeper " can be in the radial direction side of the composite material sleeper
Increase from inside to outside upwards.
In this application, the volume for the fiber that term " fiber content " is defined as in sleeper unit volume accounts for sleeper unit bodies
Long-pending percentage.
In this application, the density and fiber content of the sleeper changed are all based on 1mm3-1cm3Unit volume and
Speech.
In the embodiment of the present application, the composite material sleeper may include transition zone, and the fiber in the transition zone exists
The composite material sleeper can increase to the second fiber content by by the first fiber content from inside to outside in the radial direction
Formal distribution.
In the embodiment of the present application, the fiber in the transition zone is in the composite material sleeper in the radial direction from interior
To it is outer can be by the formal distribution for being linearly increasing to the second fiber content by the first fiber content.
It can be with it should be appreciated that in addition to linearly increasing mode, when increasing to the second fiber content from the first fiber content
Other modes are used, for example, index increases, logarithm increases, increases according to the part being gradually increasing in parabola or according to hyperbolic
Part increasing being gradually increasing in line etc..
In the embodiment of the present application, first fiber content can be linearly increasing to second fiber according to formula I
Content, formula I are as follows:
y1=k1x+b1
In formula, y1For the fiber content of tested point, unit %；
X is the distance between tested point and the inward flange of transition zone, unit m；
k1It is nonnegative number, unit 1/m for fiber content growth rate；
b1Within the scope of 2%-25%.
When composite material sleeper includes the first density layer, the inward flange of the transition zone is located at transition zone and the first density
The intersection of layer；When composite material sleeper does not include the first density layer, the inward flange of the transition zone is composite material sleeper
Center.
In the embodiment of the present application, the density of the transition zone can be linearly increasing according to formula II, formula II are as follows:
y2=k2x+b2
In formula, y2For the density of tested point, unit kg/m3；
X is the distance between tested point and the inward flange of transition zone, unit m；
k2It is nonnegative number, unit kg/m for the density increase rate of transition zone4；
b2Within the scope of 100-1200, unit kg/m3。
In the embodiment of the present application, the composite material sleeper can also include the first density layer and/or the second density layer,
The side close to the composite material sleeper center of the transition zone, second density layer is arranged in first density layer
The side far from the composite material sleeper center of the transition zone is set, and the fiber in first density layer is pressed
First fiber content is evenly distributed, and the fiber in second density layer is evenly distributed by the second fiber content.
In the embodiment of the present application, the composite material sleeper can successively include from inside to outside in radial directions described
First density layer and the transition zone.The thickness of first density layer can be the 1/ of the height of the composite material sleeper
, remaining as the transition zone.
In the embodiment of the present application, the composite material sleeper can successively include from inside to outside in radial directions described
Transition zone and second density layer.The thickness of the transition zone can be the 6/50-49/ of the height of the composite material sleeper
50, remaining as second density layer.
In the embodiment of the present application, as shown in Figure 1, the composite material sleeper 10 in radial directions from inside to outside can be with
It successively include first density layer 11, the transition zone 12 and second density layer 13.The thickness of first density layer 11
Degree can be the 1/10-9/10 of the height of the composite material sleeper 10, and the thickness of the transition zone 12 can be described compound
The 1/100-22/50 of the height of material sleeper 10, remaining as second density layer 13.In the present embodiment, the transition zone
12 and second density layer 13 be successively centered around 11 surrounding of the first density layer, at this point, the transition zone 12 and described
In a ring, the thickness of the transition zone 12 refers to being centered around 11 side of the first density layer for the cross section of two density layers 13
The thickness of transition zone 12.In other embodiments, the thickness of cross section transition zone in a ring and the second density layer with herein
It defines identical.
In the Shi Lizhong of the application, the composite material sleeper can successively include first from inside to outside in radial directions
Density layer, transition zone and the second density layer, the fiber in first density layer is evenly distributed by the first fiber content, described
Fiber in second density layer is evenly distributed by the second fiber content, and the fiber in the transition zone is equal by third fiber content
It is distributed evenly, the second fiber content described in third fiber content < described in the first fiber content <.First density layer
Thickness can for the composite material sleeper height 1/10-9/10, the thickness of the transition zone can be described compound
The thickness of the 1/50-44/50 of the height of material sleeper, second density layer can be the height of the composite material sleeper
1/50-40/50。
In the embodiment of the present application, the density of first density layer can be 100kg/m3-1200kg/m3(it can pass through
The quality of first density layer/first density layer volume is calculated), the density of second density layer can be
500kg/m3-1900kg/m3(can be calculated by quality/second density layer volume of second density layer).
The embodiment of the present application also provides the manufacturing methods of composite material sleeper as described above, which comprises
According to the density of desired composite material sleeper, fibre of the fiber in the composite material sleeper is calculated
Dimension hplc, and convert and obtain fiber content of the fiber on fiber architecture frame；
Fiber is passed through by fiber architecture on fiber architecture frame according to fiber content of the fiber on fiber architecture frame
It arranges yarn plate and carries out pre- distribution row yarn；
The fiber for passing through row's yarn plate is drawn to impregnating equipment, and reisn base material is made to impregnate the fiber；And
The fiber for being impregnated with reisn base material is formed, the composite material sleeper is obtained.
The composite material sleeper manufacturing method of the embodiment of the present application uses integrally formed mode, and it is secondary viscous to avoid sleeper
Connect the existing risk that falls off.
In the embodiment of the present application, as shown in Fig. 2, the method may include:
According to the density of desired composite material sleeper, fiber 14 is calculated in the composite material sleeper
Fiber content, and convert and obtain fiber content of the fiber on fiber architecture frame；
The fiber 14 for forming transition zone is arranged on fiber architecture frame 21, so that fiber 14 is passed through row's yarn plate 23 and is divided in advance
Arrange yarn；
The fiber 14 for passing through row's yarn plate 23 is drawn to impregnating equipment 24, and reisn base material 15 is made to impregnate the fibre
Dimension 14；With
The fiber 14 for being impregnated with reisn base material 15 feeding molding equipment 25 is foamed and solidified, molding is completed；
Sleeper semi-finished product after molding are cut by desired size using sawing device 26, obtain composite material sleeper
10。
In the embodiment of the present application, the method can also include: to be arranged in by the fiber 14 for forming the transition zone
Before on fiber architecture frame 21, the fiber 14 for forming the first density layer is equably arranged on the fiber architecture frame 21, so
Afterwards in the periphery for the fiber 14 for forming first density layer, the fiber 14 for forming the transition zone is arranged in the fiber and is arranged
On cloth holder 21.
In the embodiment of the present application, the method can also include: to be arranged in by the fiber 14 for forming the transition zone
After on fiber architecture frame 21, before making fiber 14 carry out pre- distribution row yarn across row's yarn plate 23, in the fibre of the transition zone
The periphery of dimension 14, the fiber 14 for forming second density layer is equably arranged on the fiber architecture frame 21.
On row's yarn plate 23, fibre bundle can carry out pre- distribution row yarn according to the Density Distribution situation of sleeper.Arrange 23 phase of yarn plate
When in the sleeper cross section that a size is amplified, the pore size distribution for arranging yarn plate 23 is identical as the distribution of fiber in sleeper.Unlike,
Yarn is arranged for the ease of fibre bundle in manufacturing process, arranges reality of the distance between the fiber holes than fibre bundle in sleeper on yarn plate 23
Border distance is big.According to the difference of production line, the distance between fiber holes about fibre bundle is in sleeper on general row's yarn plate 23
5-20 times of actual range.If the distance between adjacent two fibre bundle is 3mm in sleeper, the corresponding fiber on row's yarn plate
The distance between hole is 15mm-60mm (being obtained by 3mm × (5-20 times)).When production, when the first fiber content, the second fiber contain
It, can be according to the distance between fiber holes and fibre bundle on row's yarn plate 23 in sleeper after amount (and third fiber content) determines
Fiber content of the fiber on row's yarn plate 23 and fiber architecture frame 21 is calculated, then according to calculating in the multiple of actual range
As a result by fiber architecture on fiber architecture frame 21.
As shown in Figures 3 and 4, row yarn plate 23 include primary fiber row yarn plate 231 (including once arrange yarn plate row 2311 He of yarn hole
Primary row's yarn board mount 2312) and secondary stock row yarn plate 232 (including secondary row's yarn plate row yarn hole 2321 and secondary row's yarn plate branch
Frame 2322).The distance between the size of secondary stock row's yarn plate 232 and fiber holes thereon are respectively less than primary fiber and arrange yarn plate
231, for example, the distance between the fiber holes on secondary stock row's yarn plate 232 can be actual range of the fibre bundle in sleeper
2-10 times.But the secondary stock arrange on yarn plate 232 actual range of the distance between fiber holes and fibre bundle in sleeper it
Between multiple be it is certain, primary fiber arrange the distance between fiber holes and fibre bundle on yarn plate 231 in sleeper it is practical away from
Multiple between be also it is certain, so can just obtain designed sleeper density.
In other embodiments, row's yarn plate 23 can not include secondary stock row's yarn plate 232, or arrange including secondary stock
Yarn plate 232 and three times fiber row yarn plate, four fiber row's yarn plates etc..Secondary stock arranges yarn plate 232, three times fiber row yarn plate and four
Secondary fiber row yarn plate etc. can be set to be arranged between yarn plate 231 and impregnating equipment 24 in primary fiber.
In the embodiment of the present application, the reisn base material may include polyether polyol A, polyether polyol B, polyethers
Polyalcohol C, coupling agent, catalyst, foam stabiliser, foaming agent, fire retardant, antioxidant, light stabilizer and isocyanates, it is described
The weight ratio of each component of reisn base material and the fiber can be with are as follows:
In the embodiment of the present application, the degree of functionality of the polyether polyol A can be 4-6, and its hydroxyl value can be 200-
800；
The degree of functionality of the polyether polyol B can be 2-4, and its hydroxyl value can be 50-800；
The degree of functionality of the polyether polyol C can be 2-3, and its hydroxyl value can be 50-500.
In the embodiment of the present application, the degree of functionality of the coupling agent can be 1-4.
In the embodiment of the present application, the polyether polyol A, polyether polyol B and polyether polyol C, each independently
Can by using sorbierite, sucrose, xylitol, 1,2-PD, ethylene glycol, diethylene glycol (DEG), 1,4-butanediol, neopentyl glycol,
Glycerine, trimethylolpropane, ethanol amine, diethanol amine, triethanolamine, ethylenediamine, toluenediamine, methylene dianiline (MDA) and season
One of penta tetrol or a variety of combinations are obtained as initiator, and with Polymerization of Propylene Oxide, or with propylene oxide and epoxy
Ethane is copolymerized to obtain (wherein, the content that the content of propylene oxide is greater than ethylene oxide).
In the embodiment of the present application, the coupling agent can be amino-containing silane coupling agent, the silane idol containing epoxy group
Join one of agent, the silane coupling agent containing thin base and silane coupling agent containing isocyanate group or a variety of；It is described amino-containing
Silane coupling agent can be gamma-aminopropyl-triethoxy-silane (KH-550), three oxygen methyl-monosilane (KH-540) of γ-aminopropyl,
N- (β-aminoethyl)-γ-aminopropyltrimethoxysilane (KH-792) or N- (β-aminoethyl)-gamma-aminopropyl-triethoxy silicon
Alkane (KH-552) etc.；The silane coupling agent containing epoxy group can be γ-glycidyl ether oxygen propyl trimethoxy silicane
(KH560), β-(3,4- epoxycyclohexyl) ethyl trimethoxy silane (KH-566) or three second of γ-glycidyl ether oxygen propyl
Oxysilane (KH-561) etc.；The silane coupling agent containing thin base can be γ-and dredge base propyl trimethoxy silicane (KH-
590) or γ-dredges base propyl-triethoxysilicane (KH-580) etc.；The silane coupling agent containing isocyanate group can be
γ-isocyanate propyl trimethoxysilane (Siquest A-Link 35) or γ-isocyanate propyl triethoxysilane
(Siquest A-Link 25) etc..
In the embodiment of the present application, the catalyst can be one of tertiary amine catalyst and organo-metallic catalyst etc.
Or it is a variety of；The tertiary amine catalyst can be triethylenediamine, the closed triethylenediamine of acid, trimethyl-N-2- hydroxypropyl
Base caproic acid (TMR), the closed TMR (such as TMR-2, TMR-3, TMR-4) of acid, N, N- dimethyl cyclohexyl amine or N- methyl bicyclic
Hexylamine etc.；The organo-metallic catalyst can be dibutyl tin dilaurate or isooctyl acid potassium etc..
In the embodiment of the present application, the foam stabiliser can be organo-silicon compound, and the organo-silicon compound can
Think one of B8404, B8407, B8409, B8423 and B8433 or a variety of.
In the embodiment of the present application, the foaming agent can be physical blowing agent or chemical foaming agent, the physical blowing
Agent can be 141b, pentamethylene, pentane, pentafluoropropane (245fa) or 1,1,1,3,3-pentafluorobutane (365mfc) etc.；It is described
Chemical foaming agent is that water makees foaming agent.
In the embodiment of the present application, the fire retardant can add for halogenated phosphate additive flame retardant, phosphoric acid ester
One of type fire retardant and halogenated hydrocarbons and other halogen plain additive flame retardants are a variety of；The halogenated phosphate addition type
Fire retardant can be three (2- chloroethyl) phosphates (TCEP), three (2- chloropropyl) phosphate TCPP or three (two chloropropyls) phosphorus
Acid esters TDCP etc.；The phosphoric acid ester additive flame retardant can be dimethyl methyl phosphonate (DMMP), diethyl ethylphosphate
(DEEP) or dimethyl propyl phosphonate ester (DMPP) etc.；The halogenated hydrocarbons and other halogen plain additive flame retardants can be ten
Dibromodiphenyl ether (DE-83R) or decabromodiphenylethane etc..
In the embodiment of the present application, the antioxidant can be hindered phenol antioxygen, aromatic amine kind antioxidant and Asia
One of phosphoric acid ester antioxidant etc. is a variety of；The hindered phenol antioxygen can-[3-3 (tert-butyl -4 hydroxyl double for triethylene glycol
Base -5- aminomethyl phenyl) propionic ester] (245), four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] (1010), thio two Asia
Ethyl bis- [3- (- 4 hydroxy benzenes of 3,5- di-t-butyl) propionic ester] (1035), the different monooctyl esters of 3,5- di-t-butyl -4- hydroxy phenylpropionic acid
(1135) or butyl octyl diphenylamines (5057) etc..
In the embodiment of the present application, the light stabilizer can be ultraviolet absorbing agent, hindered amine light stabilizer and ammonia
One of anti-yellow agent of synthetic fibre is a variety of；The ultraviolet absorber can be N- (carboethoxyphenyl)-N'- methyl-N'- phenyl
Carbonamidine (UV-1), 2- (2'- hydroxyl -3'- dodecyl -5'- aminomethyl phenyl) benzotriazole (UV-571) or hydroxyl phenol benzo
Triazole type ultraviolet absorber (UV-1130) etc.；The hindered amine light stabilizer can be 292 etc.；The Spandex anti-yellowing agent can
Think bis- (N, N- dimethyl-hydrazine amino 4- phenyl) methane (HN-150) or 4,4'- hexamethylene bis (1,1- dimethylamino
Urea) (HN-130) etc..
In the embodiment of the present application, the isocyanates can be PAPI (polyaryl polymethylene isocyanates) or modified
PAPI can be selected from one of PM-200 and PM-100 etc. or a variety of.
In the embodiment of the present application, the fiber can be selected from glass fibre, aramid fiber, basalt fibre and carbon fiber
In any one or more.Also, the fiber can be continuous fiber, and can use long fibre, staple fiber or fiber
Powder etc. carries out auxiliary enhancing.Arragement direction of the fiber in sleeper can be along length of sleeper direction, perpendicular to length of sleeper direction
Or multidirectional random arrangement.
In the embodiment of the present application, the molding equipment 25 can be continuous mould pressing molding equipment.
The density and fiber content of the sleeper changed involved in following embodiment are all based on 1mm3Unit bodies
For product.
Embodiment 1
The composite material sleeper of the present embodiment is in radial directions from inside to outside (i.e. along from the side of sleeper center-to-face dimension layer
To) it successively include the first density layer 11, transition zone 12 and the second density layer 13.Fiber 14 in first density layer 11 is by the
One fiber content is evenly distributed, and the fiber 14 in second density layer 13 is evenly distributed by the second fiber content, described
Fiber 14 in transition zone 12 is in the composite material sleeper 10 in the radial direction from inside to outside by by the first fiber content line
Property increases to the formal distribution of the second fiber content, and first fiber content linearly increases according to formula y=0.02x+0.1
Second fiber content is added to, so that the density of the transition zone 12 is in the composite material sleeper in the radial direction from interior
To the density for increasing to second density layer by the density linear of first density layer according to formula y=100x+500 outside.
The length of the composite material sleeper of the present embodiment is 4.5m, width 230mm, is highly 140mm, wherein described
The width of first density layer 11 is 100mm, with a thickness of 60mm；Second density layer 13 it is close with a thickness of 20mm, described first
Spending between layer 11 and second density layer 13 is the transition zone 12.
First fiber content is 10%, and second fiber content is 22%.The density of first density layer is
500kg/m3, the density of second density layer is 1100kg/m3。
The raw material for manufacturing the composite material sleeper of the present embodiment is as shown in the table:
Temperature when molding is 40 DEG C.
Embodiment 2
The composite material sleeper of the present embodiment is in radial directions from inside to outside (i.e. along from the side of sleeper center-to-face dimension layer
To) it successively include the first density layer 11, transition zone 12 and the second density layer 13.Fiber 14 in first density layer 11 is by the
One fiber content is evenly distributed, and the fiber 14 in second density layer 13 is evenly distributed by the second fiber content, described
Fiber 14 in transition zone 12 is in the composite material sleeper 10 in the radial direction from inside to outside by by the first fiber content line
Property increases to the formal distribution of the second fiber content, and first fiber content is linear according to formula y=0.017x+0.12
Increase to second fiber content so that the transition zone 12 density the composite material sleeper in the radial direction
The close of second density layer is increased to by the density linear of first density layer according to formula y=75x+600 from inside to outside
Degree.
The length of the composite material sleeper of the present embodiment is 3m, width 260mm, is highly 260mm, wherein described the
The width of one density layer 11 is 150mm, with a thickness of 150mm；Second density layer 13 with a thickness of 30mm, first density
It is the transition zone 12 between layer 11 and second density layer 13.
First fiber content is 12%, and second fiber content is 25%.The density of first density layer is
600kg/m3, the density of second density layer is 1200kg/m3。
The raw material for manufacturing the composite material sleeper of the present embodiment is as shown in the table:
Temperature when molding is 40 DEG C.
Embodiment 3
The composite material sleeper of the present embodiment is in radial directions from inside to outside (i.e. along from the side of sleeper center-to-face dimension layer
To) it successively include transition zone 12 and the second density layer 13.Fiber 14 in second density layer 13 is equal by the second fiber content
It is distributed evenly, the fiber 14 in the transition zone 12 is in the composite material sleeper 10 in the radial direction from inside to outside by by the
One fiber content is linearly increasing to the formal distribution of the second fiber content, and first fiber content is according to formula y=
0.043x+0.1 is linearly increasing to second fiber content, so that the density of the transition zone 12 is in the composite material sleeper
According to formula y=140x+500 by the minimum density of transition zone to be linearly increasing to described second from inside to outside in the radial direction close
Spend the density of layer.
The length of the composite material sleeper of the present embodiment is 3m, width 240mm, is highly 240mm, wherein the mistake
Cross layer 12 with a thickness of 200mm, second density layer 13 with a thickness of 20mm.
First fiber content is 10%, and second fiber content is 53%.The minimum density of the transition zone is
500kg/m3, the density of second density layer is 1900kg/m3。
The raw material for manufacturing the composite material sleeper of the present embodiment is same as Example 1.
Temperature when molding is 45 DEG C.
Embodiment 4
The composite material sleeper of the present embodiment successively includes the first density layer 11, transition zone along the direction from center to surface layer
12 and second density layer 13.Fiber 14 in first density layer 11 is evenly distributed by the first fiber content, and described second
Fiber 14 in density layer 13 is evenly distributed by the second fiber content, and the fiber 14 in the transition zone 12 is contained by third fiber
Amount is evenly distributed.
The length of the composite material sleeper of the present embodiment is 6m, width 230mm, is highly 160mm, wherein described the
The width of one density layer 11 is 130mm, with a thickness of 60mm；Second density layer 13 with a thickness of 10mm, first density
It is the transition zone 12 between layer 11 and second density layer 13.
First fiber content is 12%, and second fiber content is 25%, and the third fiber content is 18%.
The density of first density layer is 600kg/m3, the density of second density layer is 1200kg/m3, the transition zone it is close
Degree is 800kg/m3。
The raw material for manufacturing the composite material sleeper of the present embodiment is same as Example 1.
Temperature when molding is 50 DEG C.
Performance test
According to the performance of the sleeper of CJ/T 399-2012 (polyurethane foam composite sleeper) test above-described embodiment manufacture.
Test result is see following table.
As can be seen that the anti-fatigue performance of the composite material sleeper of the embodiment of the present application is substantially better than existing composite sleeper,
Illustrate that the surface strength of the composite material sleeper of the embodiment of the present application is significantly higher, and the concentrfated load on sleeper surface obtains
Effectively dispersion；In addition, the composite material sleeper of the embodiment of the present application also has the railway spike resistance to plucking for being substantially better than existing composite sleeper
Power.
Although embodiment disclosed by the application is as above, the content only for ease of understanding the application and use
Embodiment is not limited to the application.Technical staff in any the application fields, is taken off not departing from the application
Under the premise of the spirit and scope of dew, any modification and variation, but the application can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (12)
1. a kind of integral composite material sleeper, contain fiber in the composite material sleeper, which is characterized in that the composite wood
Density the increasing from inside to outside in the radial direction in the composite material sleeper of material sleeper, and the composite material sleeper
The increase of density is by making the fiber content of the fiber in the composite material sleeper in the radial direction side of the composite material sleeper
Increase from inside to outside to realize upwards.
2. integral composite material sleeper according to claim 1, wherein the composite material sleeper includes transition zone,
Fiber increasing from inside to outside by by the first fiber content in the radial direction in the composite material sleeper in the transition zone
To the formal distribution of the second fiber content.
3. integral composite material sleeper according to claim 2, wherein the fiber in the transition zone is described compound
Material sleeper in the radial direction from inside to outside by the formal distribution for being linearly increasing to the second fiber content by the first fiber content.
4. integral composite material sleeper according to claim 3, wherein first fiber content is according to formula I line
Property increases to second fiber content, formula I are as follows:
y1=k1x+b1
In formula, y1For the fiber content of tested point, unit %；
X is the distance between tested point and the inward flange of transition zone, unit m；
k1It is nonnegative number, unit 1/m for fiber content growth rate；
b1Within the scope of 2%-25%.
5. integral composite material sleeper according to claim 4, wherein the density of the transition zone is according to formula II line
Property increase, formula II are as follows:
y2=k2x+b2
In formula, y2For the density of tested point, unit kg/m3；
X is the distance between tested point and the inward flange of transition zone, unit m；
k2It is nonnegative number, unit kg/m for the density increase rate of transition zone4；
b2Within the scope of 100-1200, unit kg/m3。
6. integral composite material sleeper according to claim 2, the composite material sleeper further includes the first density layer
And/or second density layer, first density layer be arranged in the transition zone close to the one of the composite material sleeper center
The side far from the composite material sleeper center of the transition zone, and described the is arranged in side, second density layer
Fiber in one density layer is evenly distributed by the first fiber content, and the fiber in second density layer presses the second fiber content
It is evenly distributed.
7. integral composite material sleeper according to claim 6, wherein
The composite material sleeper successively includes first density layer and the transition zone, institute from inside to outside in radial directions
State the 1/10-9/10 of the height with a thickness of the composite material sleeper of the first density layer；Or
The composite material sleeper successively includes the transition zone and second density layer, institute from inside to outside in radial directions
State the 6/50-49/50 of the height with a thickness of the composite material sleeper of transition zone；Alternatively,
The composite material sleeper successively include from inside to outside on radial direction first density layer, the transition zone and
Second density layer, the 1/10-9/10 of the height with a thickness of the composite material sleeper of first density layer, the mistake
Cross the 1/100-22/50 of the height with a thickness of the composite material sleeper of layer.
8. integral composite material sleeper according to claim 1, wherein the composite material sleeper is in radial directions
It from inside to outside successively include the first density layer, transition zone and the second density layer, the fiber in first density layer is fine by first
Dimension hplc is evenly distributed, and the fiber in second density layer is evenly distributed by the second fiber content, in the transition zone
Fiber be evenly distributed by third fiber content, second is fine described in third fiber content < described in the first fiber content <
Dimension hplc.
9. the integral composite material sleeper according to any one of claim 2-8, wherein first fiber content is
2%-25%, second fiber content are 17%-60%.
10. integral composite material sleeper a method according to any one of claims 6-8, wherein first density layer
Density is 100kg/m3-1200kg/m3, the density of second density layer is 500kg/m3-1900kg/m3。
11. the manufacturing method of integral composite material sleeper according to claim 1 to 10, which is characterized in that
The described method includes:
According to the density of desired composite material sleeper, fiber of the fiber in the composite material sleeper is calculated and contains
Amount, and convert and obtain fiber content of the fiber on fiber architecture frame；
According to fiber content of the fiber on fiber architecture frame, by fiber architecture on fiber architecture frame, fiber is made to pass through row's yarn
Plate carries out pre- distribution row yarn；
The fiber for passing through row's yarn plate is drawn to impregnating equipment, and reisn base material is made to impregnate the fiber；And
The fiber for being impregnated with reisn base material is formed, the integral composite material sleeper is obtained.
12. the manufacturing method of composite material sleeper according to claim 11, wherein described to arrange fiber architecture in fiber
Include: on cloth holder
Optionally, the fiber for forming the first density layer is equably arranged on the fiber architecture frame；
In the periphery for the fiber for forming first density layer, the fiber architecture of transition zone will be formed in the fiber architecture frame
On；
Optionally, in the periphery for the fiber for forming the transition zone, the fiber for forming the second density layer is equably arranged in institute
It states on fiber architecture frame.
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| CN201910218894.4A CN109895420A (en) | 2019-03-21 | 2019-03-21 | A kind of integral composite material sleeper and its manufacturing method |
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| CN201910218894.4A CN109895420A (en) | 2019-03-21 | 2019-03-21 | A kind of integral composite material sleeper and its manufacturing method |
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