CN103866653B - A kind of novel sandwich structure synthesis wooden sleeper and continuously pultrusion molding process - Google Patents
A kind of novel sandwich structure synthesis wooden sleeper and continuously pultrusion molding process Download PDFInfo
- Publication number
- CN103866653B CN103866653B CN201410070729.6A CN201410070729A CN103866653B CN 103866653 B CN103866653 B CN 103866653B CN 201410070729 A CN201410070729 A CN 201410070729A CN 103866653 B CN103866653 B CN 103866653B
- Authority
- CN
- China
- Prior art keywords
- wooden sleeper
- synthesis wooden
- sandwich structure
- core material
- foam core
- 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.)
- Expired - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
For a kind of novel sandwich structure synthesis wooden sleeper and the moulding process thereof of the deficiency that synthesis wooden sleeper density is comparatively large and cavity dimension is less, for solving the problems of the technologies described above, the present invention is achieved by the following technical solutions.A kind of novel sandwich structure synthesis wooden sleeper, it is characterized in that: this synthesis wooden sleeper is sandwich structure, synthesis wooden sleeper skin is continuous fibre enhancement polyurethane froth bed, its thickness is 10mm ~ 50mm, synthesis wooden sleeper inside is foam core material, its shape of cross section is the square or rectangular that corner is rounded down, and the material of foam core material is the one in polyurethane foam, polyvinyl chloride foam, phenol formaldehyde foam, and density is 100kg/m
3~ 500kg/m
3.Synthesis wooden sleeper continuous forming process comprises guide, foam core material conveying, foaming machine injecting glue, evenly soaks pool, shaping, cutting six operations.This technology has that density is little, bearing strength is large, operation is easy, cost performance advantages of higher.
Description
Technical field
The present invention relates to technical field of composite materials, be specifically related to a kind of novel sandwich structure synthesis wooden sleeper structure and manufacture method thereof.
Background technology
Railway is one of China's main traffic transportation means, railroad sleeper adopts sleeper and reinforced concrete sleeper usually, as traditional sleeper, its have be easy to processing and transport, insulating properties are high, damping property is excellent, but because its material is biomaterial, although through process such as anticorrosion waterproof, its application life is still shorter, generally be no more than 15 years, its maintenance cost is also higher.Reinforced concrete sleeper, as the alternate material of sleeper, because weight is large, fragility is large, elasticity is low, easily occur the shortcomings such as crack, is also more and more difficult to the growth requirement meeting railway construction.For meeting the growth requirement of railway construction, developed country's development high molecular synthetic materials such as Japan, the U.S. replace original sleeper and reinforced concrete sleeper, wherein developing is the most successfully the one-way glass fiber reinforcement polyurethane foam that Japanese ponding chemical industry Co., Ltd develops, i.e. synthesis wooden sleeper.This material has that excellent intensity is large, density is low, durability, flame retardancy, and higher mechanical property, lower density, corrosion-resistant and screw pull strength high.
Current domestic synthesis wooden sleeper patent is long fiber reinforcement homogeneous polyurethane foamed material, its manufacturing process generally include guide, foaming machine injecting glue, evenly soak pool, shaping, cutting, processing, bonding, process and the operation such as to spray paint.The tall winter equality people of patent CN101314931A discloses a kind of long fiber reinforcement polyurethane foam homogeneous synthesis wooden sleeper formula and moulding process; Patent CN101328311A opens formula and the continuous forming process that the people such as to use military forces discloses a kind of synthesis wooden sleeper, and this synthesis wooden sleeper is long fiber reinforcement homogeneous polyurethane foamed material; The people such as patent CN101550225A Sun Shou roc disclose the formula system of the self-skining flame retardation type polyurethane composite sleeper of a kind of available injection or pultrusion; CN101046077A stone island is bravely controlled and is disclosed one and have good durability, flame retardancy and shock resistance synthesis wooden sleeper and preparation method thereof.Above patent is long fiber reinforcement homogeneous polyurethane foamed material, partial monopoly is in synthesis wooden sleeper forming process, flame-retardant layer is formed at surface skining, its main moulding process all have employed continuous pultrusion molding process, but above synthesis wooden sleeper all have employed homogeneous material, extrudate density is larger, usual density is greater than 750kg/m3, simultaneously for ease of the arrangement of yarn bundle and infiltration, and prevent inner thermal discharge large and cause burning core, shaping maximum cavity dimension controls as 210mm × 80mm usually, the bonding of block and block is needed to carry out when making sleeper, virtually add the cost of manufacture of synthesis wooden sleeper.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned synthesis wooden sleeper density is comparatively large and cavity dimension is less, propose a kind of novel sandwich structure synthesis wooden sleeper and moulding process thereof.The object of the invention is to introduce a kind of novel sandwich structure synthesis wooden sleeper structure and continuous pultrusion molding process thereof.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions.
A kind of novel sandwich structure synthesis wooden sleeper, it is characterized in that: this synthesis wooden sleeper is sandwich structure, synthesis wooden sleeper skin is continuous fibre enhancement polyurethane froth bed, its thickness is 10mm ~ 50mm, synthesis wooden sleeper inside is foam core material, its shape of cross section is the square or rectangular that corner is rounded down, and the material of foam core material is the one in polyurethane foam, polyvinyl chloride foam, phenol formaldehyde foam, and density is 100kg/m3 ~ 500kg/m3.
According to described novel sandwich structure synthesis wooden sleeper, it is characterized by: described synthesis wooden sleeper outer layer thickness is 20mm, described foam core material shape of cross section is rectangle, and foam core material material preferred density is the polyurethane foam of 250kg/m3.
According to described novel sandwich structure synthesis wooden sleeper, it is characterized in that: skin and the foam core material increase of described synthesis wooden sleeper have transitional interlayer, and its material is layer of polyurethane or novolac resin layer.
According to described novel sandwich structure synthesis wooden sleeper, it is characterized in that: described transitional interlayer preferred material is layer of polyurethane.
A continuous pultrusion molding process for novel sandwich structure synthesis wooden sleeper, is characterized in that: sandwich structure synthesis wooden sleeper continuous forming process comprises guide, foam core material conveying, foaming machine injecting glue, evenly soaks pool, shaping, cutting six operations altogether,
(1) guide, be that any one or several woven glass roving fabrics of 1200Tex-19200Tex guide to required cross section by yarn guide, collection yarn plate by specification, the speed of service is 0.1 ~ 1m/min, reduces the wearing and tearing to yarn in guide process as far as possible;
(2) foam core material conveying, prefabricated polyurethane foam, polyvinyl chloride foam or phenol formaldehyde foam core are transported in synthesis wooden sleeper former by the speed that continuous rolling former is identical, speeds control is at 0.1 ~ 1m/min;
(3) foaming machine injecting glue, PPG, catalyzer, blowing agent, foaming stabiliser, fire retardant, age resistor, isocyanates recipe ingredient are mixed in proportion in foaming machine, is sprayed on the single layering of fiber or the upper surface of multiple layering with the uniform flow of 0.5-15kg/min;
(4) evenly soak pool, after the glue spraying of yarn bundle surface, enter rapidly the damp equipment of leaching and evenly soak pool, by the Altitude control of stripper plate, and stripper plate makes polyurethane evenly soak damp yarn bundle at vertical yarn bundle direct of travel by certain frequency reciprocating motion;
(5) shaping, fiber bundle and the foam core material of leaching pool being crossed resin are introduced in the die cavity of rolling former by the tractive force of continuous rolling former, the speed of service and the foam core material transporting velocity of fiber bundle match, control at 0.1 ~ 1m/min, can be temperature automatically controlled between 50 ~ 120 DEG C, goods are transported to subsequent processing complete foaming, sizing and solidification in rolling former die cavity after;
(6) cut, after goods export from rolling former, by chill station, adopt automatic cutting equipment length on request to cut, namely complete the shaping of synthesis wooden sleeper.
According to the continuous pultrusion molding process of described novel sandwich structure synthesis wooden sleeper, it is characterized in that: the leaching pool equipment of described operation (4) is made up of lower panel, top panel, lower panel is one flat plate, top panel is made up of one or more stripper plate, and stripper plate is dull and stereotyped or structural type stripper plate.
According to the continuous pultrusion molding process of described novel sandwich structure synthesis wooden sleeper, it is characterized by: the rolling former of described operation (5) is made up of the laminating machine of upper and lower two rollings capable of circulation and two, left and right side chain circulating rolling device, four sides synchronous circulating rotates, the height of die cavity and width can adjust within the scope of certain size according to the needs of goods, and die length is 15m ~ 40m.
Described die length is 25m.
Owing to have employed technique scheme, the present invention has following superiority:
1, this synthesis wooden sleeper has that production efficiency is high, cost is low, density is little, bearing strength is large, operation is easy, cost performance advantages of higher.This moulding process can meet the continuously shaped requirement of integral of all size sleeper, and this sandwich structure synthesis wooden sleeper has that density is little, bearing strength is large, operation is easy, cost performance advantages of higher simultaneously.
2, the present invention utilizes continuously shaped equipment to prepare light sandwich structure synthesis wooden sleeper, achieve serialization and automated production, substantially increase production efficiency, decrease following process link simultaneously, reduce cost of production, and the synthesis wooden sleeper excellent combination property of preparation, quality is light, stable performance, good mechanical performance, corrosion resistance is good, in certain field, can be used as sleeper and other bearing structure material.
Accompanying drawing explanation
Fig. 1 is sandwich structure synthesis wooden sleeper sectional drawing.
Fig. 2 is sandwich structure synthesis wooden sleeper schematic cross-section.
Fig. 3 is for being transitional interlayer synthesis wooden sleeper schematic cross-section.
Fig. 4 is the damp equipment schematic diagram of leaching.
Fig. 5 is continuous forming process schematic diagram.
In figure: 1, continuous fibre enhancement polyurethane froth bed; 2, foam core material; 3, transitional interlayer;
4, roving; 5, foaming machine; 6, damp equipment lower panel is soaked; 7, the plate stripper plate of damp equipment is soaked; 8, damp device structure type stripper plate is soaked; 9, continuous rolling former.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.
Embodiment
Sandwich structure synthesis wooden sleeper continuous forming process comprises guide, foam core material conveying, foaming machine injecting glue, evenly soaks pool, shaping, cutting six operations, and each operation is described below:
(1) guide.
680 bundle 9600Tex woven glass roving fabrics 4 are guided to required cross section by yarn guide, 2 layers of collection yarn plate, and the speed of service is 0.4m/min.
(2) foam core material conveying.
The polyurethane foam of prefabricated density 250kg/m3 is prefabricated into foam core material 2 that cross section is 150mm × 100mm, foam core material 2 is transported in the continuously shaped equipment 9 of synthesis wooden sleeper with the speed of 0.4m/min equally.
(3) foaming machine injecting glue.
PPG, PPG, catalyzer, blowing agent, fire retardant, age resistor, isocyanates are mixed in the ratio of 70:30:0.15:0.8:20:0.5:110 in foaming machine 5, is sprayed on the upper surface of fibrage 4 with the uniform flow of 4.4kg/min.
(4) evenly pool is soaked.
As Fig. 4, enter rapidly the damp equipment of leaching after the glue spraying of yarn bundle surface and evenly soak pool.By soaking the Altitude control of the plate stripper plate 7 of damp equipment, and soak the plate stripper plate of damp equipment 7 and to move back and forth by 40 beats/min of frequencies at vertical yarn bundle direct of travel and make polyurethane evenly soak damp yarn bundle.
(5) shaping.
Fiber bundle and the foam core material 2 of leaching pool being crossed the roving 4 of resin are introduced in the die cavity of continuous rolling former 9 by the tractive force of continuous rolling former 9, rolling former four sides synchronous circulating rotates, die cavity overall length is 25m, die cavity is of a size of 210mm × 140mm, die cavity temperature control is 85 DEG C, and gait of march is 0.4m/min.
(6) cut.
After goods export from continuous rolling former 9, by the chill station of certain length 15m, adopt automatic cutting equipment to cut by the siding-to-siding block length of 3m ~ 2.7m, namely complete the shaping of synthesis wooden sleeper.
The present invention relates to a kind of novel sandwich structure synthesis wooden sleeper and continuous pultrusion molding process thereof.This respect report is had no in current document at home and patent.This patented technology is mainly used in the continuously shaped of sandwich structure synthesis wooden sleeper, has that density is little, bearing strength is large, operation is easy, cost performance advantages of higher, and this sandwich structure synthesis wooden sleeper can be used for sleeper and other bearing structure material.Be with a wide range of applications and significant economic benefit.
Claims (4)
1. a continuous pultrusion molding process for novel sandwich structure synthesis wooden sleeper, is characterized in that: sandwich structure synthesis wooden sleeper continuous forming process comprises guide, foam core material conveying, foaming machine injecting glue, evenly soaks pool, shaping, cutting six operations altogether,
(1) guide, be that any one or several woven glass roving fabrics of 1200Tex-19200Tex guide to required cross section by yarn guide, collection yarn plate by specification, the speed of service is 0.1 ~ 1m/min, reduces the wearing and tearing to yarn in guide process as far as possible;
(2) foam core material conveying, prefabricated polyurethane foam, polyvinyl chloride foam or phenol formaldehyde foam core are transported in synthesis wooden sleeper former by the speed that continuous rolling former is identical, speeds control is at 0.1 ~ 1m/min;
(3) foaming machine injecting glue, PPG, catalyzer, blowing agent, foaming stabiliser, fire retardant, age resistor, isocyanates recipe ingredient are mixed in proportion in foaming machine, is sprayed on the single layering of fiber or the upper surface of multiple layering with the uniform flow of 0.5-15kg/min;
(4) evenly soak pool, after the glue spraying of yarn bundle surface, enter rapidly the damp equipment of leaching and evenly soak pool, by the Altitude control of stripper plate, and stripper plate makes polyurethane evenly soak damp yarn bundle at vertical yarn bundle direct of travel by certain frequency reciprocating motion;
(5) shaping, fiber bundle and the foam core material of leaching pool being crossed resin are introduced in the die cavity of rolling former by the tractive force of continuous rolling former, the speed of service and the foam core material transporting velocity of fiber bundle match, control at 0.1 ~ 1m/min, can be temperature automatically controlled between 50 ~ 120 DEG C, goods are transported to subsequent processing complete foaming, sizing and solidification in rolling former die cavity after;
(6) cut, after goods export from rolling former, by chill station, adopt automatic cutting equipment length on request to cut, namely complete the shaping of synthesis wooden sleeper.
2. the continuous pultrusion molding process of novel sandwich structure synthesis wooden sleeper according to claim 1, it is characterized in that: the leaching pool equipment of described operation (4) is made up of lower panel, top panel, lower panel is one flat plate, top panel is made up of one or more stripper plate, and stripper plate is dull and stereotyped or structural type stripper plate.
3. the continuous pultrusion molding process of novel sandwich structure synthesis wooden sleeper according to claim 1, it is characterized in that: the rolling former of described operation (5) is made up of the laminating machine of upper and lower two rollings capable of circulation and two, left and right side chain circulating rolling device, four sides synchronous circulating rotates, the height of die cavity and width can adjust within the scope of certain size according to the needs of goods, and die length is 15m ~ 40m.
4. the continuous pultrusion molding process of novel sandwich structure synthesis wooden sleeper according to claim 3, is characterized in that: described die length is 25m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070729.6A CN103866653B (en) | 2014-02-28 | 2014-02-28 | A kind of novel sandwich structure synthesis wooden sleeper and continuously pultrusion molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070729.6A CN103866653B (en) | 2014-02-28 | 2014-02-28 | A kind of novel sandwich structure synthesis wooden sleeper and continuously pultrusion molding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103866653A CN103866653A (en) | 2014-06-18 |
| CN103866653B true CN103866653B (en) | 2016-01-20 |
Family
ID=50905635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410070729.6A Expired - Fee Related CN103866653B (en) | 2014-02-28 | 2014-02-28 | A kind of novel sandwich structure synthesis wooden sleeper and continuously pultrusion molding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103866653B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452485A (en) * | 2014-12-19 | 2015-03-25 | 中格复合材料（南通）有限公司 | Railway sleeper made of composite materials and manufacturing method thereof |
| CN104652182B (en) * | 2015-03-11 | 2016-08-24 | 中格复合材料（南通）有限公司 | A kind of sleeper and the method installing nut sleeve thereof |
| CN105332324B (en) * | 2015-11-25 | 2018-01-12 | 中格复合材料（南通）有限公司 | A kind of composite material sleeper |
| EP3456525A4 (en) | 2016-06-17 | 2019-06-19 | Mitsubishi Heavy Industries, Ltd. | Production device and production method for pultrusion molded article |
| CN106013602A (en) * | 2016-06-17 | 2016-10-12 | 南京工业大学 | Pultruded wood core composite material profile |
| CN109228410B (en) * | 2018-10-19 | 2024-02-09 | 洛阳科博思新材料科技有限公司 | Fiber reinforced composite material impregnation system, resin fiber mixing die and application thereof |
| CN110939470A (en) * | 2019-12-05 | 2020-03-31 | 青岛海力威新材料科技股份有限公司 | Sealing water stop for tunnel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2507894Y (en) * | 2001-10-29 | 2002-08-28 | 张传业 | Plastic sleeper |
| CN101050130A (en) * | 2007-03-24 | 2007-10-10 | 杨卫平 | N & F fiber gas filled wall bricks |
| CN101050614A (en) * | 2006-04-04 | 2007-10-10 | 积水化学工业株式会社 | Synthetic resin forming body, preparing method and preparing system for the same |
| CN101851879A (en) * | 2010-01-28 | 2010-10-06 | 北京盘天新技术有限公司 | Composite sleeper |
| CN201686903U (en) * | 2010-01-28 | 2010-12-29 | 北京盘天新技术有限公司 | Composite sleeper with wood inner core |
| CN201756664U (en) * | 2010-01-28 | 2011-03-09 | 北京盘天新技术有限公司 | Composite sleeper |
| WO2011060105A3 (en) * | 2009-11-10 | 2011-09-22 | Pike James A | Tire tread rail crosstie and associated methods therefor |
| CN202482711U (en) * | 2012-01-20 | 2012-10-10 | 北京盘天新技术有限公司 | Sleeper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7931210B1 (en) * | 2005-12-22 | 2011-04-26 | Pike James A | Tire tread railroad tie |
-
2014
- 2014-02-28 CN CN201410070729.6A patent/CN103866653B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2507894Y (en) * | 2001-10-29 | 2002-08-28 | 张传业 | Plastic sleeper |
| CN101050614A (en) * | 2006-04-04 | 2007-10-10 | 积水化学工业株式会社 | Synthetic resin forming body, preparing method and preparing system for the same |
| CN101050130A (en) * | 2007-03-24 | 2007-10-10 | 杨卫平 | N & F fiber gas filled wall bricks |
| WO2011060105A3 (en) * | 2009-11-10 | 2011-09-22 | Pike James A | Tire tread rail crosstie and associated methods therefor |
| CN101851879A (en) * | 2010-01-28 | 2010-10-06 | 北京盘天新技术有限公司 | Composite sleeper |
| CN201686903U (en) * | 2010-01-28 | 2010-12-29 | 北京盘天新技术有限公司 | Composite sleeper with wood inner core |
| CN201756664U (en) * | 2010-01-28 | 2011-03-09 | 北京盘天新技术有限公司 | Composite sleeper |
| CN202482711U (en) * | 2012-01-20 | 2012-10-10 | 北京盘天新技术有限公司 | Sleeper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103866653A (en) | 2014-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103866653B (en) | A kind of novel sandwich structure synthesis wooden sleeper and continuously pultrusion molding process | |
| WO2018033041A1 (en) | High-fiber-content fiber-reinforced rigid polyurethane foam composite railway sleeper and method for manufacturing same | |
| CN106349446B (en) | A kind of high microsteping fibres in amounts enhancing hard polyurethane foam synthetic plate and preparation method thereof | |
| CN101328311B (en) | Formula for synthesizing crosstie and continuous forming process | |
| CN109501322B (en) | Fiber-reinforced synthetic sleeper and preparation method thereof | |
| CN101769421A (en) | Wood fiber composite engineering material and production method of product thereof | |
| CN203361377U (en) | Prefabrication hard foam polyurethane rock wool composite insulation board | |
| CN102991046A (en) | Light-weight and high-strength plastic steel sandwich board and its making method | |
| CN111421926B (en) | Continuous fiber cloth three-dimensional reinforced wood-plastic composite material and production method and equipment thereof | |
| WO2016095788A1 (en) | Composite material railway sleeper and manufacturing method therefor | |
| CN103172327A (en) | Reinforced cement foaming board and preparation method thereof | |
| CN107877970A (en) | A kind of heat-insulated three-dimensional hollow composite plate and its application | |
| CN110126302B (en) | Foaming device, continuous production line and production method of fiber reinforced foam composite material | |
| CN114075857A (en) | Heat-insulation-structure-integrated composite non-dismantling template and preparation method thereof | |
| CN104563315A (en) | Three-dimensional knitted hollow fabric reinforced foaming cement heat preserving plate and preparation method thereof | |
| CN104045987A (en) | Formula and production process of glass fiber-reinforced plastic composite material | |
| CN105619843A (en) | Preparation method of composite material sleeper | |
| CN203821171U (en) | Novel sandwich structure synthetic sleeper | |
| CN101871556A (en) | Pultruded bamboo fiber reinforce plastic wrapped inorganic core composite plate and molding method thereof | |
| CN104214979B (en) | A kind of vacuum thermal insulation plate composite heat insulation block and manufacture method thereof | |
| CN103865144A (en) | Mesh type three-dimensional woven grid fabric reinforced lightweight plate and preparation method thereof | |
| CN102615886B (en) | Basalt fiber reinforced polypropylene composite material moulding process | |
| CN202556822U (en) | Glass fiber reinforcing polyurethane product with core | |
| CN103422607A (en) | Surface protection light concrete board and preparation method thereof | |
| CN111559153A (en) | Polyurethane fiber reinforced structural plate and manufacturing process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20170228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |