CN101649589A - Polymer modified new-material railway track sleeper - Google Patents
Polymer modified new-material railway track sleeper Download PDFInfo
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- CN101649589A CN101649589A CN200810188485A CN200810188485A CN101649589A CN 101649589 A CN101649589 A CN 101649589A CN 200810188485 A CN200810188485 A CN 200810188485A CN 200810188485 A CN200810188485 A CN 200810188485A CN 101649589 A CN101649589 A CN 101649589A
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Abstract
The invention adopts a self-developed automatic production line molding method to prepare a polymer track sleeper, wherein after a polymer modified new material is modulated to be qualified, fiber-rope reinforcing ribs or interspersed reinforcing ribs are prearranged in a die through an automatic production line; qualified fastening-connection wedge-shaped bolt holes for a sleeper body are prearranged through preformed wedge-shaped bolts in the die; a raw material modulated to be qualified is plasticized at high temperature under high pressure, extruded and injected into a sleeper die throughthe automatic production line to form the sleeper body; and polymer sleepers are connected as a whole by connecting and fastening the wedge-shaped bolt with track clips. The invention is based on the'National Railway Construction Standard Design Pattern' to technically transform the track sleeper therein. A method comprises the step of using a concrete sleeper in the same size as a basic figure and preparing the concrete sleeper into the polymer railway track sleeper. The sleeper has the following advantages of: 1, energy conservation and environmental protection; 2, appropriate toughness beneficial to the high-speed driving of trains and the shortening of emergency braking distance; and 3, simple process and low cost. The sleeper is suitable for main tracks, auxiliary tracks and turnoutsof railways.
Description
Technical field:
Present technique relates to a kind of synthetic making of railway rail timber sleeper of polymer modified new-material making.
Background technology:
What for a long time, railway rail timber sleeper used is the timber sleeper.The taboo that is accompanied by forest reserves policy is cut down in short supply with timber, forces railway construction to have to seek new substitute material.Concrete sleeper has played saving timber, has played the update effect in railway construction, this product is exactly to arise at the historic moment in this case.According to textual criticism, though concrete sleeper intensity height, bearing capacity are big, it has many unsatisfactory parts: (1) shows car body when driving and the very stiff and demanding vibration force that produces of pillow is very strong, makes people's fatigue of noise and uncomfortable of feeling to drive a vehicle; (2) its character is located this product and can not be adapted to deformation condition, when track sleeper unbalance stress, when local stress is excessive, its character will cause local stress to surpass the concrete sleeper design stress upper limit and produce destruction, and then make track sleeper destruction can not continue to use.The high polymer sleeper belongs to flexible pillow, when taking place the unbalance stress local stress can produce corresponding deformation when excessive stress is disperseed, and is unlikely to destroy railways train operation.
Summary of the invention:
The railway rail timber sleeper that provides a kind of polymer modified new-material to make for society is provided, the platform of a secondary comprehensive utilization of waste materials is provided for qualified waste or used plastics, fiber, junked tire.
Wait the problem of existence according to (1) (2) of background technology textual criticism, we have developed and have adopted polymer modified new-material to make the imagination of railway rail timber sleeper as cutting point, discover, the polymer modified new-material sleeper is by unique prescription, its physics, chemistry, mechanical property are better than the timber sleeper, be similar to concrete sleeper, indivedual indexs also are better than concrete sleeper.Such as: the tensile strength of polymer modified new-material is 21-24MPa; And concrete tensile strength can only reach 1.1MPa; The polymer modified new-material shear strength can reach 60MPa; And concrete shear strength can only reach 11MPa; The softening temperature of high polymer is 170 ℃-250 ℃; Brittle temperature is-70 ℃; Poisson's ratio is 0.45; Elongation at break 〉=350%; These indexs all are suitable for building railway rail timber sleeper very much.
Above-mentioned purpose content realizes by following technical scheme:
The railway rail timber sleeper that polymer modified new-material is made, its composition comprises: by the synthetic passing material pillow (1) of high polymer proportioning, the built-in wedge shape standard bolt of described pillow mould, in pillow, reserve qualified bolt cavity position (2), described pillow is built-in with one group of cordage reinforcing rib or the fiber reinforced material that intersperses (3), and described pillow is connected to form an integral body (4) by wedge shape fastening bolt and railroad track and by track rail clip and pillow.
This technical scheme has following beneficial effect:
1. saving resource: existing human annual hundred million tons of waste or used plastics of 4-5, several ten million tons of junked tires, several ten million tons waste and old high strength canopy film and the fiber of producing approximately.These waste materials are burnt contaminated air, throw away to contaminate society environment and take the human usable floor area of the earth.Show that according to present interrelated data the use of these waste materials accounts for the 7-9% of its total amount, as adopt this technology to succeed, these waste materials all can very be utilized.
2. raising comprehensive effectiveness: the polymer modified new-material sleeper has the feature of flexible body, according to textual criticism, certain elastic reaction helps running at high speed of locomotive, the expectation speed of a motor vehicle can be brought up to 500-700 kilometer/hour, the snub distance can shorten 50-60%, and the comparable concrete sleeper of the comprehensive social benefit of train improves 5-6 doubly.
3. properties of product are reliable: the chemical property of polymer modified new-material is very stable, characteristics such as the chemistry of polymer modified new-material sleeper, physical and mechanical property, the irradiation of acidproof, alkaline-resisting, wear-resisting, anticorrosive, anti-normal temperature, anti-normal pressure all are better than timber sleeper and concrete sleeper, be specially adapted to phreatic engineering, polymer modified new-material sleeper itself ± 60 ℃ does not produce physical change.This long product lifecycle can reach 50-70 and the recyclable utilization again of pillow, and comprehensive social benefit than the high 5-6 of concrete doubly.
4. adopt high polymer scope inner macromolecule material: high density polyethylene (HDPE) is raw material 20% more than 80 grades, qualified waste or used plastics 50%, qualified waste and old high-intensity film and fiber 10%, waste rubber powder 10%, calcium carbonate 10%, the mixing formula that the embrittlement modification is developed, through high temperature plasticizing, high pressure pouring moulding and refining, final molding and a kind of novel high-strength high polymer railway rail timber sleeper that has the fibrous polymer structure produced.
5. short construction period, technology are simple: the concrete track sleeper adds technologies such as will carrying out template support, concrete stirring, reinforcement fabrication, concreting, form removal, health man-hour, long, complex process of cycle.But the track sleeper that has adopted high polymer material to make now only needs production, simple several the technologies of installation just can finish, shortened the duration greatly, save great amount of manpower and material resources and social resources.
The specific embodiment of the present invention:
Embodiment 1:
The railway rail timber sleeper that polymer modified new-material is made, its composition comprises: by the synthetic passing material pillow (1) of high polymer proportioning, the built-in wedge shape standard bolt of described pillow mould, in pillow, reserve qualified bolt cavity position (2), described pillow is built-in with one group of cordage reinforcing rib or the fiber reinforced material that intersperses (3), and described pillow is connected to form an integral body (4) by wedge shape fastening bolt and railroad track and by track rail clip and pillow.
Embodiment 2:
The railway rail timber sleeper that above-mentioned polymer modified new-material is made, built-in bolt in the described mould makes it to be wrapped in the polymer modified new-material of pillow the tie point as sleeper and track.
Embodiment 3:
The railway rail timber sleeper that above-mentioned polymer modified new-material is made, the described cordage reinforcing rib or the fiber reinforced material that intersperses play the laterally vertical girth member effect of pillow among being embedded in pillow in advance, treat that high polymer raw material plasticizing perfusion forms whole reinforcement pillow.
The present invention is a foundation with " state-owned railroads building standard layout ", and wherein track sleeper is undergone technological transformation.Method is: adopt with it that the concrete sleeper of same size is a fundamental figure, be prepared into the high polymer railway rail timber sleeper.
High polymer is a high molecular polymer, and chemical property is very stable.And the intensity and the tough performance that have with it are widely used in human life, industry, agricultural, manufacturing industry.
Description of drawings:
Accompanying drawing 1 is the structural representation of this product.
Accompanying drawing 2 is A-A sectional views of accompanying drawing 1.
Accompanying drawing 3 is side structure schematic diagrames of accompanying drawing 1.
Claims (4)
1. railway rail timber sleeper that adopts polymer modified new-material to make, its composition comprises: the pillow of high polymer (1) fiber reinforced material or the fiber reinforced material that intersperses (2) preset bolt (3) modulation synthetic high polymer material (4).
2, railway rail timber sleeper according to claim 1 is characterized in that the pillow (1) that the synthetic qualified high polymer material of described modulation forms is that main raw material(s) is extruded the railway rail timber sleeper that injection moulding is made through HTHP formation hot melt through (4) with waste and old qualified plastics, using rubber powder of waste tire, fiber powder or cordage, calcium carbonate etc.
3, railway rail timber sleeper according to claim 1 is characterized in that described sleeper is: reserve qualified wedge bolt cavity by the built-in set bolt of mould (3) in pillow (1).
4, railway rail timber sleeper according to claim 1 is characterized in that described sleeper is that fiber reinforced material or the fiber reinforced material that intersperses (2) are connected to form integral body by presetting bolt (3) with the railroad track rail clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188485A CN101649589A (en) | 2008-06-18 | 2008-06-18 | Polymer modified new-material railway track sleeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188485A CN101649589A (en) | 2008-06-18 | 2008-06-18 | Polymer modified new-material railway track sleeper |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810064752.9 Division | 2008-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101649589A true CN101649589A (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810188485A Pending CN101649589A (en) | 2008-06-18 | 2008-06-18 | Polymer modified new-material railway track sleeper |
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| CN (1) | CN101649589A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251443A (en) * | 2011-04-22 | 2011-11-23 | 北京交通大学 | High molecular composite sleeper and manufacturing method thereof |
| CN105556044A (en) * | 2013-03-13 | 2016-05-04 | 索里迪亚科技公司 | Composite railroad ties and methods of production and uses thereof |
| WO2016074056A1 (en) * | 2014-11-11 | 2016-05-19 | Braskem S.A. | Railway sleeper and railway-sleeper manufacturing method |
| CN108641153A (en) * | 2018-05-07 | 2018-10-12 | 佛山市万善环保科技有限公司 | A kind of high-strength weather-proof antistatic gives up rubber-plastic composition railroad sleeper and preparation method thereof |
| CN112112000A (en) * | 2020-08-21 | 2020-12-22 | 山东高速交通装备有限公司 | Reinforced composite sleeper and preparation method thereof |
-
2008
- 2008-06-18 CN CN200810188485A patent/CN101649589A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251443A (en) * | 2011-04-22 | 2011-11-23 | 北京交通大学 | High molecular composite sleeper and manufacturing method thereof |
| CN105556044A (en) * | 2013-03-13 | 2016-05-04 | 索里迪亚科技公司 | Composite railroad ties and methods of production and uses thereof |
| CN105556044B (en) * | 2013-03-13 | 2021-05-18 | 索里迪亚科技公司 | Composite railroad tie and methods of making and using same |
| WO2016074056A1 (en) * | 2014-11-11 | 2016-05-19 | Braskem S.A. | Railway sleeper and railway-sleeper manufacturing method |
| EP3219851A4 (en) * | 2014-11-11 | 2018-08-01 | Braskem S.A. | Railway sleeper and railway-sleeper manufacturing method |
| CN108641153A (en) * | 2018-05-07 | 2018-10-12 | 佛山市万善环保科技有限公司 | A kind of high-strength weather-proof antistatic gives up rubber-plastic composition railroad sleeper and preparation method thereof |
| CN112112000A (en) * | 2020-08-21 | 2020-12-22 | 山东高速交通装备有限公司 | Reinforced composite sleeper and preparation method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100217 |