CN103672193A - Novel reinforced corrugated pipe - Google Patents
Novel reinforced corrugated pipe Download PDFInfo
- Publication number
- CN103672193A CN103672193A CN201310530360.8A CN201310530360A CN103672193A CN 103672193 A CN103672193 A CN 103672193A CN 201310530360 A CN201310530360 A CN 201310530360A CN 103672193 A CN103672193 A CN 103672193A
- Authority
- CN
- China
- Prior art keywords
- layer
- corrugated pipe
- novel reinforced
- fiber reinforced
- thermoplastic material
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D16/00—Producing articles with corrugations
Abstract
The invention relates to a novel reinforced corrugated pipe. The pipe wall of the novel reinforced corrugated pipe is composed of three layers which are the inner layer, the reinforcing corrugated structure layer and the outer layer in sequence from inside to outside, wherein polyethylene resin or polypropylene resin is used as the raw material of the inner layer and the outer layer, and the reinforcing corrugated structure layer is made of a reinforcing thermoplastic material. The novel reinforced corrugated pipe can well overcome the defects that a steel strip corrugated pipe is weak in interface bonding, prone to corrosion, difficult to reuse and the like; due to the fact that the thermoplastic material is better compatible with the polyethylene resin or the polypropylene resin compared with a steel product, bonding between the reinforcing corrugated structure layer, the inner layer and the outer layer is tighter, cracking and layering caused by temperature difference do not happen easily, and the service life is greatly prolonged; due to the fact that a plastic composite structure is adopted for replacing a steel-plastic composite structure, the weight is reduced, and the novel reinforced corrugated pipe is quite convenient to recycle and can be directly broken for reuse.
Description
Technical field
The present invention relates to engineering plastics application, be specifically related to a kind of novel enhanced bellows.
Background technique
With composite structure, improving plastic pipe intensity is the important directions that plastic pipe develops in the world at present.On market, existing steel band bellows is owing to having adopted steel strip reinforced, increased substantially the ring stiffness of pipeline, can solve the series of problems such as heavy duty, heavy caliber pipe advantage is more obvious, lighter, higher than other plastic tube intensity than cement pipe weight, be widely used in the fields such as expressway, urban construction, airdrome, mine, be especially applicable to large foundation construction project.
But because plastics and steel band thermal shrinkage differ greatly, peeling strength bonding between interface layer is not high, cause steel strip reinforced duct products very easily to produce steel and mould stratification, in addition due to the corrosivity of steel, cause steel-plastic composite pipe not long working life, after long-term use, have larger hidden danger of quality; Owing to having used steel and plastic composite structure, composite metal plastic pipe is also difficult for reclaiming simultaneously.
Summary of the invention
The shortcomings such as the object of the invention is, in order to overcome the deficiencies in the prior art, provides a kind of novel enhanced bellows, and it can solve steel band bellows interface well in conjunction with not strong, perishable and not easy to be recycled.
The present invention is achieved through the following technical solutions:
The tube wall of described a kind of novel enhanced bellows forms by three layers, be followed successively by from the inside to surface internal layer, enhancement mode ripple struction layer and skin, its internal layer and outer employing polyethylene or acrylic resin are raw material, and its enhancement mode ripple struction layer adopts and strengthens thermoplastic material.
Above-mentioned internal layer, enhancement mode ripple struction layer and outer field three-decker and can realize by following two kinds of process programs:
Scheme one: the polyethylene that 1# extruder is extruded or crystalline p p sheet are wound around as tubing internal layer on mould, adopt enhancing thermoplastic material to produce strip material, while producing pipeline by adding hot calender or plastic uptake mode is made ripple struction, as enhancement layer, the polyethylene that 2# extruder is extruded or crystalline p p sheet parcel enhancement layer, by being wrapped on internal layer around pipe machine.
Scheme two: the polyethylene that 1# extruder is extruded or crystalline p p sheet are wound around as tubing internal layer on mould, 2# extruder adopts and strengthens thermoplastic material, by thering is the mould of ripple struction, extrude enhancement mode ripple struction layer, the polyethylene that 3# extruder is extruded or crystalline p p sheet parcel enhancement mode ripple struction layer, by being wrapped on internal layer around pipe machine.
Further, the melt index of described polyethylene, acrylic resin is 0.1-3.0g/10min, and density is 0.94-1.0g/cm3.
Further, described enhancing thermoplastic material employing glass fiber reinforced polypropylene or carbon fiber Reinforced Polypropylene or nylon material are main raw material.
Further, the melt index of described glass fiber reinforced polypropylene, carbon fiber Reinforced Polypropylene and nylon material is 0.5-3.0g/10min, and tensile strength is 50-100MPa, and flexural strength is 120-260MPa.
Compared with prior art, the invention has the beneficial effects as follows:
1,, because thermoplastic material has better compatibility with respect to the same polyethylene of steel, acrylic resin, make bonding tightr between enhancement mode ripple struction layer and inside and outside layer;
2, due to thermoplastic material compared with the percent thermal shrinkage of steel band closer to polyethylene, acrylic resin, make to be difficult for producing cracking, layering because of the temperature difference between this novel plastic pipeline enhancement mode ripple struction layer and inside and outside layer;
3, due to the significant corrosion resistance of thermoplastic material, thereby greatly increase the service life;
4, owing to adopting plasticity composite structure to substitute steel plastic composite structure, make its recovery very convenient, can direct broken reuse;
5, the density of thermoplastic material is only 1/4 to 1/5 of steel, makes novel enhanced corrugated pipe products weight provided by the invention significantly lower than existing steel band bellows, constructs more convenient, and cost is more economical, more meets national industrial policies.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only instrument in order to explain the present invention, be not intended to limit the present invention.
Embodiment one:
The tube wall of described a kind of novel enhanced bellows forms by three layers, is followed successively by from the inside to surface internal layer, enhancement mode ripple struction layer and skin.
(1) described internal layer adopts acrylic resin, and its melt index requires at 2.0g/10min, density 0.98g/cm
3;
(2) the described outer high-density polyethylene resin that adopts, its melt index requires at 0.3g/10min, density 0.96g/cm
3;
(3) described enhancement mode ripple struction layer adopts glass fiber reinforced polypropylene, and melt index requires at 0.5g/10min, tensile strength 65MPa, flexural strength 154MPa.
Embodiment two:
The tube wall of described a kind of novel enhanced bellows forms by three layers, is followed successively by from the inside to surface internal layer, enhancement mode ripple struction layer and skin.
(1) described internal layer adopts high density polyethylene (HDPE), and melt index requires at 1.2g/10min, density 0.94g/cm
3;
(2) the described outer high density polyethylene (HDPE) that adopts, melt index requires at 0.8g/10min, density 0.94g/cm
3;
(3) described enhancement mode ripple struction layer adopts glass fiber reinforced nylon 66, and melt index requires at 1.2g/10min, tensile strength 98MPa, flexural strength 240MPa.
Embodiment three:
The tube wall of described a kind of novel enhanced bellows forms by three layers, is followed successively by from the inside to surface internal layer, enhancement mode ripple struction layer and skin.
(1) described internal layer adopts high density polyethylene (HDPE), and melt index requires at 0.5g/10min, density 0.93g/cm
3;
(2) the described outer polypropylene alkene that adopts, melt index requires at 2.0g/10min, density 0.98g/cm
3;
(3) described reinforced layer adopts carbon fiber reinforced nylon 6, and melt index requires at 2.5g/10min, tensile strength 83MPa, flexural strength 208MPa.
Use novel novel enhanced bellows provided by the invention, adopt thermoplastic material to substitute steel band as enhancement layer, so can not there is the risk of corrosion, when reaching steel band bellows intensity, greatly extend working life.Meanwhile, use novel novel enhanced bellows provided by the invention, directly broken recycling.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiments, and General Principle described herein is applied in other embodiments and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (4)
1. a novel enhanced bellows, it is characterized in that: the tube wall of described novel enhanced bellows forms by three layers, be followed successively by from the inside to surface internal layer, enhancement mode ripple struction layer and skin, its internal layer and outer employing polyethylene or acrylic resin are raw material, and its enhancement mode ripple struction layer adopts and strengthens thermoplastic material.
2. a kind of novel enhanced bellows according to claim 1, is characterized in that: the melt index of described polyethylene, acrylic resin is 0.1-3.0g/10min, and density is 0.94-1.0g/cm
3.
3. a kind of novel enhanced bellows according to claim 1, is characterized in that: it is main raw material that described enhancing thermoplastic material adopts glass fiber reinforced polypropylene or carbon fiber Reinforced Polypropylene or nylon material.
4. a kind of novel enhanced bellows according to claim 3, it is characterized in that: the melt index of described glass fiber reinforced polypropylene, carbon fiber Reinforced Polypropylene and nylon material is 0.5-3.0g/10min, tensile strength is 50-100MPa, and flexural strength is 120-260MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530360.8A CN103672193A (en) | 2013-11-01 | 2013-11-01 | Novel reinforced corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310530360.8A CN103672193A (en) | 2013-11-01 | 2013-11-01 | Novel reinforced corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103672193A true CN103672193A (en) | 2014-03-26 |
Family
ID=50310584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310530360.8A Pending CN103672193A (en) | 2013-11-01 | 2013-11-01 | Novel reinforced corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103672193A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000297883A (en) * | 1999-04-14 | 2000-10-24 | Sekisui Chem Co Ltd | Composite pipe |
| CN2630605Y (en) * | 2003-07-23 | 2004-08-04 | 刘堪金 | Hollow pipe material of glass-fiber reinforced plastic |
| CN201513636U (en) * | 2009-10-20 | 2010-06-23 | 航天晨光股份有限公司 | Temperature-resistant thermoplastic plastic composite pipeline |
| CN102478130A (en) * | 2010-11-27 | 2012-05-30 | 泰州申视塑料有限公司 | High-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure |
| CN102691832A (en) * | 2012-06-12 | 2012-09-26 | 上海清远管业科技有限公司 | Glass fiber enhanced high-density polyethylene (HDPE) double-walled winding pipe and manufacture method thereof |
| CN103289375A (en) * | 2013-05-22 | 2013-09-11 | 江苏金发科技新材料有限公司 | Continuous glass fiber reinforced polypropylene-nylon composite material and preparation method thereof |
-
2013
- 2013-11-01 CN CN201310530360.8A patent/CN103672193A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000297883A (en) * | 1999-04-14 | 2000-10-24 | Sekisui Chem Co Ltd | Composite pipe |
| CN2630605Y (en) * | 2003-07-23 | 2004-08-04 | 刘堪金 | Hollow pipe material of glass-fiber reinforced plastic |
| CN201513636U (en) * | 2009-10-20 | 2010-06-23 | 航天晨光股份有限公司 | Temperature-resistant thermoplastic plastic composite pipeline |
| CN102478130A (en) * | 2010-11-27 | 2012-05-30 | 泰州申视塑料有限公司 | High-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure |
| CN102691832A (en) * | 2012-06-12 | 2012-09-26 | 上海清远管业科技有限公司 | Glass fiber enhanced high-density polyethylene (HDPE) double-walled winding pipe and manufacture method thereof |
| CN103289375A (en) * | 2013-05-22 | 2013-09-11 | 江苏金发科技新材料有限公司 | Continuous glass fiber reinforced polypropylene-nylon composite material and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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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: 20140326 |