CN110039679A - A kind of infiltration apparatus for compound sleeper preparation - Google Patents
A kind of infiltration apparatus for compound sleeper preparation Download PDFInfo
- Publication number
- CN110039679A CN110039679A CN201910261888.7A CN201910261888A CN110039679A CN 110039679 A CN110039679 A CN 110039679A CN 201910261888 A CN201910261888 A CN 201910261888A CN 110039679 A CN110039679 A CN 110039679A
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- CN
- China
- Prior art keywords
- fiber
- roller
- vibration
- resin
- frequency
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/46—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from different materials
Abstract
A kind of compound sleeper is with vibration auxiliary pre-invasion device, the fiber after resin sprays, and the sluice gate being made up of the fixing roller that primary high-frequency vibration roller and outer layer are rubber carries out extruding pre-preg to the fiber after spray resin；Pre-impregnated fiber continues to infiltrate fiber by secondary high frequency vibrating roller；Fiber after the infiltration of secondary high frequency vibrating roller forms the equally distributed fiber combinations material presoaked of fiber or more after being the tapering preformed board in oblong, both ends by one group of section；The diameter of primary vibrating roller be 40-150mm, 5000-25000 beats/min of vibration frequency, amplitude 0.3-2mm；Secondary 8000-30000 beats/min of vibrating roller vibration frequency, amplitude 0.2-1.5mm.It by vibration-extrusion, infiltrates resin and fiber sufficiently, solves the problems, such as auxiliary infiltration apparatus foamed material residue occluding device；Sufficiently infiltration can be completed to resin and fiber, and be uniformly distributed the fiber after infiltration in 150 seconds, improve production efficiency.
Description
Technical field
The present invention relates to a kind of resin compounded sleeper infiltration apparatus, belong to railroad track material equipment field.
Background technique
The sleeper of early stage is that have the shortcomings that easily decayed, maintenance cost is high, then gradually by water made of choice wood
Mud sleeper substitutes on a large scale, but concrete sleeper is rigidly big, and when train operation is vibrated larger.Elastic polyurethane sleeper is that hard is poly-
Urethane Foamex, with a kind of structural material made of pultrusion processes, has corrosion-resistant, resistance to reinforcing fiber yarn Shu Zengqiang
Long property, insulating properties, high intensity and lightweight with similar wood and the performance that can be reprocessed.Earliest polyurethane sleeper is
By Japanese Sekisui Chemical Co., Ltd in research and development in 1975, this FFU synthesis wooden sleeper is long glass fiber enhancing hard
Polyurethane foam preparation.Currently, the companies such as Bayer, BASF all successfully develop elastic polyurethane sleeper.
Glass fiber reinforced polyester urethane foam sleeper, also referred to as FFU sleeper.FFU sleeper corrosion resistance is weather-proof compared with wooden rail pillow height
Property it is good, fatigue behaviour equally has workability, high electrical insulating properties up to 1,000,000 times compared with wooden sleeper, and can carry out industry
Change the sleeper for producing different size out in enormous quantities.External result of study shows: FFU sleeper long service life, is being laid with 15 years
Afterwards, surface does not have cracked, and whole not to be bent, integral color, size are substantially unchanged；Aspect of performance, after 15 years,
Bending strength only reduces by 17%, pull strength and is not much different, and parameters are above and require index.
For compound sleeper using continuous glass fibre as reinforcing material, polyurethane is basis material, be aided with foaming agent, catalyst,
The additives such as surfactant, fire retardant, antiager, anti ultraviolet agent, by foaming firmly, pultrusion molding process produces compound bridge tie.
It is limited by the process characteristic of compound sleeper, fiber infiltration must be completed in 150 seconds, due to the big (1800-5400 of amount containing yarn
Stock), resin content is low (< 40%), infiltration operation is carried out by the way of routinely rubbing at present, but effect of impregnation is unstable, far
It far can not meet production needs, be easy to generate defect and cause waste product.
Vibrator is most common to be used in concreting, the gas that its purpose is to be mingled with by vibration discharge the inside
Bubble is not applied to the impregnation process of fiber and resin, and its control means is single, is not able to satisfy the requirement of sleeper.
CN101759898A discloses a kind of preparation method of glass fiber composite sleeper, and thermoplasticity numerical value is mixed and led to
Extruser granulation is crossed, fiber glass reinforcement is arranged in grinding tool, granule materials are squeezed into mold through extruder
Molding, long sleeper after molding is cut and is surface-treated as needed, obtain composite sleeper.
CN108504085A discloses a kind of fiber reinforcement polyurethane foaming composite sleeper, and wherein sleeper includes by polyurethane
Resin primary ontology laminated into type has been horizontally arranged with the several layers composite felt of transverse direction humidification in ontology, adjacent compound
The fiber yarn layer of longitudinal humidification has been equipped in polyurethane resin between felt；The sleeper is using double steel band laminating machine knots
The one-time formed method preparation of Multi-layer synchronous injecting glue is closed, the transverse strength of sleeper is improved.
Summary of the invention
In the production process of compound sleeper, usually using being added to the resin material of foaming agent, inventor's discovery due to
The presence of foaming agent, especially solid foaming agents, using conventional extruding wetting method, the foaming agent can be usually distributed not
, foaming agent can not only precipitate, and can be more during extreme pressure be adsorbed on fiber, heated subsequent
During bubble, the foaming agent on fiber forms stomata, not only results in fiber reinforcing texture and separates with resin body, reduces compound
The product mechanical strength of resin sleeper, also will cause sleeper body, gas cell distribution is uneven up and down, causes unstable quality.To understand
Certainly compound sleeper manufacturing process fiber and the bad technical problem of resin infiltration, the present inventor draw in compound sleeper preparation process
Enter high-frequency vibration pretreatment, and optimizes the frequency and amplitude of high-frequency vibration, by the vibrating roller of different frequency and amplitude, with
Fixing roller common activation fiber and resin compound produce to achieve the purpose that resin and foaming agent migration, be distributed again
Infiltrate good sleeper product.Its detailed process is vibrated using multistage vibration processing in primary in infiltration preprocessing process
In the process using relatively low vibration frequency and first to higher amplitudes, the first effective infiltration of resin and fiber can be made in this way,
Then relatively high vibration frequency and relatively low amplitude are used in secondary vibration processes, can make to be adsorbed on fibre in this way
Foaming agent in dimension falls off from fiber, guarantees that fiber peripheral forms less blistering in later period high temperature blistering process,
Be conducive to improve the mechanical strength of product.
A kind of compound sleeper vibration auxiliary pre-invasion device, it is characterised in that: the fiber after resin sprays, by first
Grade high-frequency vibration roller and outer layer are the sluice gate that the fixing roller of rubber forms, and carry out extruding pre-preg to the fiber after spray resin；
Pre-impregnated fiber continues to infiltrate fiber by secondary high frequency vibrating roller；Fiber after the infiltration of secondary high frequency vibrating roller,
After being the tapering preformed board in oblong, both ends by one group of section, the equally distributed fibre presoaked of fiber or more is formed
Dimension combination material；The diameter of primary vibrating roller be 40-150mm, 5000-25000 beats/min of vibration frequency, amplitude 0.3-2mm；It is secondary
8000-30000 beats/min of vibration frequency of vibrating roller of grade, amplitude 0.2-1.5mm.
The vibration frequency of the primary vibrating roller is 30-90%, the preferably 50-80% of secondary vibration frequency, primary vibration
The amplitude of dynamic roller is 1.5-3 times, preferably 2-2.5 times of secondary vibrating roller amplitude.
In a preferred embodiment, fiber is pre-processed, reduces fiber for the adsorption capacity of foaming agent, increases
Strong fiber is to resin adsorption ability, so that reinforcing fiber and resin-bonded are closer, to improve the machinery of compound sleeper product
Intensity.The pretreatment of the fiber the following steps are included: 1) by fiber impregnation in the lye that pH value is 12-14 1-6h；2) clear
It is dry after washing, it is impregnated in 1-5h in the chitosan aqueous solution of 0.5-15wt%, modified fiber is drying to obtain after cleaning.
The diameter of primary vibrating roller is 40-100mm, and vibration frequency is 8000-15000 beats/min, amplitude 0.5-1mm.
Fixing roller is made of interior roller and outer layer buffer layer；The material of outer layer buffer layer is rubber or polyurethane, hardness shore
For 50-99；The main material of roller and vibrating roller is steel, aluminium or carbon fibre materials in fixing roller.
Secondary vibration roller diameter is diameter 50-150mm, and vibration frequency is 15000-20000 beats/min, amplitude 0.3-
0.8mm。
High-frequency vibration unit is both provided in primary high-frequency vibration roller and secondary high frequency vibrating roller, vibration mode is bias
Formula is planetary；Barrier coat is sprayed on the outside of primary high-frequency vibration roller and secondary high frequency vibrating roller and fixing roller, prevent resin and
Foaming agent sticks in roller surface.
The quantity of secondary high frequency vibrating roller is 1-5, preferably 3-4.
The quantity of preformed board is 1-10, and preferably 3-6, thickness 5-10mm, width 2-40mm, material is stainless
Steel.
The reinforcing fiber is one of glass fibre, carbon fiber, basalt fibre, aramid fiber or a variety of mixing.
It include foaming agent in the resin, the foaming agent is chemical blowing agent, such as sodium carbonate, sodium bicarbonate, bicarbonate
One of ammonium is a variety of.
The infiltration apparatus answering in compound sleeper preparation process is also claimed in the other side of invention, the present invention
With, and the compound sleeper prepared using the infiltration apparatus.
Beneficial effects of the present invention:
The present invention infiltrates resin and fiber sufficiently by vibration-extrusion, solves auxiliary infiltration apparatus foamed material
The problem of residue occluding device；Sufficiently infiltration can be completed to resin and fiber, and keep the fiber after infiltration equal in 150 seconds
Even distribution, improves production efficiency.
Detailed description of the invention
Fig. 1 vibration auxiliary pre-impregnation device schematic diagram；
Specific embodiment
The present invention is further qualified with embodiment with reference to the accompanying drawings of the specification.
Embodiment 1
The pretreatment of fiber: 1) by the glass fiber impregnated 3h in the lye that pH value is 14；2) dry after cleaning, it is impregnated in
1h in the chitosan aqueous solution of 2wt% is drying to obtain modified fiber after cleaning.
Fiber after spraying, the sluice gate being made up of the fixing roller that primary high-frequency vibration roller and outer layer are rubber, to spray
Fiber after leaching resin carries out extruding pre-preg；Pre-impregnated fiber continues to infiltrate fiber by secondary high frequency vibrating roller；
Fiber after the infiltration of secondary high frequency vibrating roller is formed after being the tapering preformed board in oblong, both ends by one group of section
The equally distributed fiber combinations material presoaked above and below fiber.
The diameter of primary vibrating roller be 100mm, 10000 beats/min of vibration frequency, amplitude 1mm；The diameter of secondary vibrating roller
For 100mm, using three-level secondary vibrating roller, 18000 beats/min of vibration frequency, amplitude 0.5mm.
Embodiment 2
Fiber after spraying, the sluice gate being made up of the fixing roller that primary high-frequency vibration roller and outer layer are rubber, to spray
Fiber after leaching resin carries out extruding pre-preg；Pre-impregnated fiber continues to infiltrate fiber by secondary high frequency vibrating roller；
Fiber after the infiltration of secondary high frequency vibrating roller is formed after being the tapering preformed board in oblong, both ends by one group of section
The equally distributed fiber combinations material presoaked above and below fiber.
The diameter of primary vibrating roller be 100mm, 12000 beats/min of vibration frequency, amplitude 0.5mm；Secondary vibrating roller it is straight
Diameter is 100mm, using three-level secondary vibrating roller, 15000 beats/min of vibration frequency, and amplitude 0.3mm.
The preparation process is same as Example 1.
Comparative example 1
Not using the compound sleeper of vibration processing preparation in preparation process.
Comparative example 2
Three-level vibrating roller is used in preparation process, 10000 beats/min of vibration frequency, amplitude 1mm, prepared by pre-invasion device
Compound sleeper.
The product of embodiment 1-2 and comparative example 1-2 are tested for the property, as a result as follows:
| Embodiment 1 | Embodiment 2 | Comparative example 1 | Comparative example 2 | |
| Transverse bending strength (MPa) | 121 | 116 | 95 | 101 |
| Vertical bending strength (MPa) | 326 | 308 | 261 | 276 |
| Bending modulus (GPa) | 9.12 | 8.73 | 7.23 | 8.01 |
| Compressive strength (MPa) | 86 | 81 | 78 | 69 |
| Shear strength (MPa) | 13 | 13 | 12 | 12 |
| Bending load (kN) | 265 | 255 | 177 | 209 |
| Roller surface residual | Nothing | Nothing | On a small quantity | It is micro |
The sleeper that the comparison of embodiment of the present invention and comparative example can be seen that device preparation of the present invention has higher
Mechanical strength.
Above embodiments only possess the technical effect and implementation process for illustratively illustrating that the present invention obtains, still, this
Professional those of ordinary skill should be understood that any form for being made on this basis without departing from claims and
The variation of details, belongs to invention which is intended to be protected.
Claims (10)
1. a kind of compound sleeper vibration auxiliary pre-invasion device, it is characterised in that: the fiber after resin sprays passes through primary
High-frequency vibration roller and outer layer are the sluice gate that the fixing roller of rubber forms, and carry out extruding pre-preg to the fiber after spray resin；In advance
Dipping fiber continues to infiltrate fiber by secondary high frequency vibrating roller；Fiber after the infiltration of secondary high frequency vibrating roller, leads to
After one group of section is crossed as the tapering preformed board in oblong, both ends, the equally distributed fiber presoaked of fiber or more is formed
Combination material；The diameter of primary vibrating roller be 40-150mm, 5000-25000 beats/min of vibration frequency, amplitude 0.3-2mm；It is secondary
8000-30000 beats/min of vibrating roller vibration frequency, amplitude 0.2-1.5mm.
2. device as described in claim 1, it is characterised in that can also be pre-processed to fiber, reduce fiber for blistering
The adsorption capacity of agent, reinforcing fiber is to resin adsorption ability, so that reinforcing fiber and resin-bonded are closer, to improve compound
The mechanical strength of sleeper product；The pretreatment of the fiber is the following steps are included: 1) by fiber impregnation in the alkali that pH value is 12-14
1-6h in liquid；2) dry after cleaning, it is impregnated in 1-5h in the chitosan aqueous solution of 0.5-15wt%, is drying to obtain modification after cleaning
Fiber.
3. device as described in claim 1, it is characterised in that the diameter of primary vibrating roller is 40-100mm, and vibration frequency is
8000-15000 beats/min, amplitude 0.5-1mm.
4. device as described in claim 1, it is characterised in that fixing roller is made of interior roller and outer layer buffer layer；Outer layer buffer layer
Material be rubber or polyurethane, hardness shore be 50-99；In fixing roller the main material of roller and vibrating roller be steel, aluminium or
Carbon fibre materials.
5. device as described in claim 1, it is characterised in that secondary vibration roller diameter is diameter 50-150mm, and vibration frequency is
15000-20000 beats/min, amplitude 0.3-0.8mm.
6. device as described in claim 1, it is characterised in that be all arranged in primary high-frequency vibration roller and secondary high frequency vibrating roller
There is high-frequency vibration unit, vibration mode is centering type or planetary；Primary high-frequency vibration roller and secondary high frequency vibrating roller and solid
Barrier coat is sprayed on the outside of fixed roll, prevents resin and foaming agent from sticking in roller surface.
7. device as described in claim 1, it is characterised in that the quantity of secondary high frequency vibrating roller is 1-5, preferably 3-4
It is a；The quantity of preformed board is 1-10, and preferably 3-6, thickness 5-10mm, width 2-40mm, material is stainless steel.
8. device as described in claim 1, it is characterised in that the reinforcing fiber is glass fibre, carbon fiber, basalt fibre
One of dimension, aramid fiber or a variety of mixing.
9. device as described in claim 1, it is characterised in that include foaming agent in the resin, the foaming agent is that chemistry rises
Infusion, such as one of sodium carbonate, sodium bicarbonate, ammonium hydrogen carbonate or a variety of.
10. such as any one of claim 1-9 application of the described device in compound sleeper preparation process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261888.7A CN110039679A (en) | 2019-04-02 | 2019-04-02 | A kind of infiltration apparatus for compound sleeper preparation |
| PCT/CN2019/091571 WO2020199364A1 (en) | 2019-04-02 | 2019-06-17 | Impregnation apparatus used for preparing composite railway sleepers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261888.7A CN110039679A (en) | 2019-04-02 | 2019-04-02 | A kind of infiltration apparatus for compound sleeper preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110039679A true CN110039679A (en) | 2019-07-23 |
Family
ID=67275916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910261888.7A Pending CN110039679A (en) | 2019-04-02 | 2019-04-02 | A kind of infiltration apparatus for compound sleeper preparation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110039679A (en) |
| WO (1) | WO2020199364A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334627A (en) * | 2021-06-23 | 2021-09-03 | 四川兴宇航科技有限公司 | Continuous carbon fiber reinforced PEKK prepreg production process and equipment |
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| JPH06293038A (en) * | 1993-04-09 | 1994-10-21 | Sekisui Chem Co Ltd | Manufacture of fibrous composite sheet |
| US6094791A (en) * | 1997-04-10 | 2000-08-01 | Toray Industries, Inc. | Method and apparatus for opening reinforcing fiber bundle and method of manufacturing prepreg |
| JP2002363855A (en) * | 2001-06-07 | 2002-12-18 | Toray Ind Inc | Opening device and opening method for fiber bundle and method for producing prepreg |
| JP2005262572A (en) * | 2004-03-17 | 2005-09-29 | Sekisui Chem Co Ltd | Method for producing fiber-reinforced resin molding, fiber-reinforced resin molding obtained by the method, and synthetic resin railroad tie |
| CN201588091U (en) * | 2009-12-24 | 2010-09-22 | 广东生益科技股份有限公司 | Production line for improving combining capacity of composition fiber fabric and organic matter |
| CN105908483A (en) * | 2016-06-02 | 2016-08-31 | 江苏顺远新材料科技股份有限公司 | Surface grafting modification method of aramid fiber |
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| CN106633737A (en) * | 2016-12-01 | 2017-05-10 | 安徽星元环保科技有限公司 | Glass reinforced plastic material for constructing low temperature resistant septic-tank |
| CN108330686A (en) * | 2018-01-02 | 2018-07-27 | 江苏大学 | The preparation method of the chitin modified basalt fibre carrier of hydrophily |
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| JP2002172705A (en) * | 2000-12-07 | 2002-06-18 | Toray Ind Inc | Vibrating roller and method for hand lay-up molding using the same |
| CN103802230B (en) * | 2014-02-25 | 2016-03-30 | 西安交通大学 | Improve prepreg tape resin impregnated and uniformity and reduce method and the device of hole |
| CN205148946U (en) * | 2015-12-02 | 2016-04-13 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Fiber reinforced thermoplastic resin base combined material plywood mould pressing device |
| CN108504085B (en) * | 2018-06-19 | 2023-12-05 | 铁科腾跃科技有限公司 | Fiber reinforced polyurethane foaming synthetic sleeper and preparation method thereof |
-
2019
- 2019-04-02 CN CN201910261888.7A patent/CN110039679A/en active Pending
- 2019-06-17 WO PCT/CN2019/091571 patent/WO2020199364A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06293038A (en) * | 1993-04-09 | 1994-10-21 | Sekisui Chem Co Ltd | Manufacture of fibrous composite sheet |
| US6094791A (en) * | 1997-04-10 | 2000-08-01 | Toray Industries, Inc. | Method and apparatus for opening reinforcing fiber bundle and method of manufacturing prepreg |
| JP2002363855A (en) * | 2001-06-07 | 2002-12-18 | Toray Ind Inc | Opening device and opening method for fiber bundle and method for producing prepreg |
| JP2005262572A (en) * | 2004-03-17 | 2005-09-29 | Sekisui Chem Co Ltd | Method for producing fiber-reinforced resin molding, fiber-reinforced resin molding obtained by the method, and synthetic resin railroad tie |
| CN201588091U (en) * | 2009-12-24 | 2010-09-22 | 广东生益科技股份有限公司 | Production line for improving combining capacity of composition fiber fabric and organic matter |
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| CN105908483A (en) * | 2016-06-02 | 2016-08-31 | 江苏顺远新材料科技股份有限公司 | Surface grafting modification method of aramid fiber |
| CN106633737A (en) * | 2016-12-01 | 2017-05-10 | 安徽星元环保科技有限公司 | Glass reinforced plastic material for constructing low temperature resistant septic-tank |
| CN108330686A (en) * | 2018-01-02 | 2018-07-27 | 江苏大学 | The preparation method of the chitin modified basalt fibre carrier of hydrophily |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334627A (en) * | 2021-06-23 | 2021-09-03 | 四川兴宇航科技有限公司 | Continuous carbon fiber reinforced PEKK prepreg production process and equipment |
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| Publication number | Publication date |
|---|---|
| WO2020199364A1 (en) | 2020-10-08 |
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