CN1109212C - High-strength composite plastic pipe of stretched and oriented polymer and with hollow reinforced structure in wall - Google Patents
High-strength composite plastic pipe of stretched and oriented polymer and with hollow reinforced structure in wall Download PDFInfo
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- CN1109212C CN1109212C CN00129815A CN00129815A CN1109212C CN 1109212 C CN1109212 C CN 1109212C CN 00129815 A CN00129815 A CN 00129815A CN 00129815 A CN00129815 A CN 00129815A CN 1109212 C CN1109212 C CN 1109212C
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- tube wall
- enhancing structure
- pipe
- composite plastic
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Abstract
The present invention provides a high intensity composite plastic pipe with a hollow reinforcing structure on a wall, wherein the intensity of the present invention is enhanced by stretching and orienting the high polymer of polymer. The composite plastic pipe is characterized in that the inner layer of the pipe wall of the pipe is at least provided with a plastic layer stretched and oriented in the radial and the axial way or a plastic layer which is stretched and oriented in the radial way or a plastic layer of which the radial tensile strength is higher than the axial tensile strength; the external surface of the inner layer is provided with an external plastic layer with the hollow reinforcing structure. Compared with plastic pipes, the composite pipes and the stretched and oriented plastic pipes which are produced by the common extrusion process, the present invention has better internal pressure bearing ability and external pressure bearing ability.
Description
Technical field:
What the present invention relates to is the macromolecule stretch orientation high-strength composite plastic pipe that a kind of tube wall of gaining in strength by the macromolecule stretch orientation of polymer has hollow enhancing structure.
Background technique:
The plastic tube of various materials is quite general in engineering is used, and people further develop again and formed with coextruding method on the basis of extrusion molding production plastics and produce the compound composite pipe of various plastic materialss in order to adapt to different requirement of engineering; In order to increase the inside and outside bearing capacity of large-diameter pipe, utilize two layers of coetrusion also to develop and produced the enhanced plastic pipe of the plastic layer of compound hollow-core construction with corrugation type on the tube wall internal layer, generally be referred to as double-walled corrugation type or ripple type plastic tube.These pipes provide more broad selection for various requirement of engineering.But if will improve the fluid conveying pressure of pipe or encircle the thickness that firm stress just has to improve the tube wall of the pipe thickness of pipe and double-walled corrugation type or ripple type plastic tube, otherwise the kind of the material that just only changes, compound as metal and plastics, or resin and winding fiber is compound.But do not see that so far plastic tube utilizes the report of the high-strength composite plastic pipe that polymer macromolecule stretch orientation gains in strength, and does not more see compound report with high-strength composite plastic pipe of hollow enhancing structure on the stretch orientation plastic layer.
Summary of the invention:
In view of above reason, the objective of the invention is for a kind of inside and outside bearing capacity, tensile strength height are provided, the tube wall that can save lot of materials has the macromolecule stretch orientation high-strength composite plastic pipe of hollow enhancing structure.
The object of the present invention is achieved like this:
The tube wall internal layer of composite plastic pipe of the present invention have one deck at least through in the footpath and axial biaxial tension orientation or through radially monoway stretch-oriented or radially tensile strength be higher than the plastic layer of axial tensile strength, be compounded with the outer plastic layer of hollow enhancing structure at inner layer outer surface.
The hollow enhancing structure of above-mentioned outer plastic layer is corrugation type or concave-convex type or circular arc type or cast or rectangle at the section shape along the pipe axial direction, also can be other shape.
Above-mentioned outer plastic layer is to be composited by metal and plastics.
Above-mentioned outer plastic layer is compound with internal layer in the form of a ring.
Above-mentioned outer plastic layer shape and internal layer in the shape of a spiral is compound.
Above-mentioned internal layer by the radial and axial biaxial tension orientation of one deck at least or radially monoway stretch-oriented or radially tensile strength be higher than the plastic layer of axial tensile strength and one deck at least axially monoway stretch-oriented or axial tensile strength be higher than radially that the plastic layer of unidirectional tensile strength is composited.
Above-mentioned outer plastic layer and interior interlayer have adhesive layer.
Above-mentioned outer plastic layer and internal layer fusion are compound.
Above-mentioned tube wall internal layer, outer plastic layer adopts different types of plastics to make.
The internal layer of above-mentioned tube wall, outer plastic layer are filled with sodium meter level or micron-sized mineral filler respectively.
At least one end mouth of pipe of above-mentioned plastic tube footpath diameter direction enlarges and is formed with the joint socket that the pipeline socket joint connects.
The internal layer of high-strength composite plastic pipe tube wall of the present invention have at least one deck through radial and axial biaxial tension orientation or through radially monoway stretch-oriented or radially tensile strength is higher than the plastic layer of axial tensile strength.Because the big molecule of high molecular polymer aligns and produces than the most anti-ring stress doubly of the plastic tube of same wall thickness along draw direction, make the interior bearing capacity of pipeline improve several times, improve the combination property of plastic tube, also can save the raw materials for plastics production of several times wall thickness accordingly.Internal layer outer side surface at tube wall is compounded with the plastic layer with hollow enhancing structure, not only improved the interior bearing capacity of pipe more, the more important thing is the weight of not only having saved a large amount of wall thickness materials after utilizing hollow enhancing structure of ring-type this corrugation type or concave-convex type or circular arc type or cast or the square type or spiral helicine hollow enhancing structure and internal layer outer side surface compound, having reduced pipe, also strengthen the ring rigidity energy of this pipe greatly, large-diameter pipe can be used by engineering.
The internal layer of tube wall and be compounded in the plastic layer that the internal layer outer side surface has hollow enhancing structure can be a same material, also can be different materials, and is compound with pipeline and be connected field and the mode that provides wider for the application of pipeline.
Which floor can be is one through compound to the tube wall internal layer, can be radial and axial biaxial tension oriented layer at nexine, the axial tension oriented layer its outer compound be one, also can the two compound on the contrary be one; Can be any three layers compound for one, compound tense can be sticking compound by Bond, also can be that fusion is compound.Such endothecium structure can improve the interior bearing capacity of pipeline, axial tensile strength that particularly improves this pipe and axial tensile strength after pipeline is connected.
At least one end caliber of this pipeline is extended and have and be used for the joint socket that the pipeline socket joint connects, make the connection construction of pipeline more convenient, can utilize rubber ring to carry out the socket joint flexible sealing connects, also can utilize Bond to carry out socket joint and be rigidly connected, also can utilize two ends to have joint socket will not have the straight tube of joint socket to couple together as the bipass spare of connecting tube.
High molecular polymer, particularly crystalline polymer polymer product such as film or pipe are below the viscous state temperature, the above orientation stretching through several times length of glassy state temperature makes big molecule produce directing effect and arrangement, generation is several times as much as the not tensile strength of elongated article on the stretch orientation direction.The composite plastic pipe that the present invention utilizes the invention of this principle all has higher stretch-proof ability than the plastic tube and the composite pipe of general extrusion molding production, inside and outside bearing capacity combination property height, economical with materials in a large number simultaneously.
Description of drawings:
Fig. 1 is the embodiment of the invention 1 figure.
Fig. 2 is the outline drawing of Fig. 1.
Fig. 3 is the embodiment of the invention 2 figure.
Fig. 4 is the outline drawing of Fig. 3.
Fig. 5 is the embodiment of the invention 3 figure.
Fig. 6 is the outline drawing of Fig. 4.
Fig. 6 is the outline drawing of Fig. 4.
Fig. 7 is the embodiment of the invention 4 figure.
Fig. 8 is the outline drawing of Fig. 7.
Fig. 9 is the embodiment of the invention 5 figure.
Embodiment:
Embodiment 1:
Fig. 1, Fig. 2 have provided composite plastic pipe embodiment 1 figure of the present invention.Internal layer 2 in the tube wall 1 by the radial and axial biaxial tension orientation of one deck (but also radially monoway stretch-oriented or radially tensile strength be higher than axial tensile strength) polyvinyl plastics layer 3 and one deck axially monoway stretch-oriented polyvinyl plastics layer 4 fusion be composited.Having by the compound in the form of a ring section shape along the pipe axial direction of adhesive layer 5 and internal layer 2 at the outer surface of internal layer 2 is the polyethylene outer plastic layer 6 of the hollow enhancing structure of corrugation type (also concave-convex type or circular arc).Be filled with the nano grade inorganic filler-calcium carbonate in the plastic layer 3,4 in the internal layer 2.Be filled with micron order mineral filler calcium carbonate in the outer plastic layer 6.The present embodiment composite plastic pipe also has the performance of higher anti-interior ring stress and the firm stress of ring except that saving a large amount of raw material.
Embodiment 2:
Fig. 3, Fig. 4 have provided the embodiment of the invention 2 figure.Internal layer 8 in the present embodiment 2 composite plastic tube walls 7 is to be composited by axially monoway stretch-oriented polyvinyl plastics layer 9 and (also can be radially monoway stretch-oriented) polyvinyl plastics layer 10 fusion of radial and axial biaxial tension orientation.The outer plastic layer made from the vinyl tube that is added with mineral filler 11 that the hollow enhancing structure of cast is arranged in the shape of a spiral shape fusion is compound with it around the outer surface of internal layer 8.Outer plastic layer also can adopt the compound composite plastic pipe of metal and plastics to make.Present embodiment 2 composite plastic pipes can bear higher interior ring stress and the firm stress of outer shroud, have certain flexibility can become to coil around.Be convenient to construction, reduce link.
Embodiment 3:
Fig. 5. Fig. 6 has provided the embodiment of the invention 3 figure.Internal layer 13 in the present embodiment 3 composite plastic tube walls 12 is radial and axial biaxial tension (or radially simple tension) polyvinyl plastics layers 14 and axially monoway stretch-oriented polyvinyl plastics layer 15 fusion are composited.The polyethylene outer plastic layer 16 that rectangle hollow strengthens structure in the shape of a spiral shape fusion is compound with it around the outer surface of internal layer 13.Be filled with the micron order mineral filler calcium carbonate of 20～30% weight ratios in the polyethylene outer plastic layer 16.
Embodiment 4:
Fig. 7, Fig. 8 have provided the embodiment of the invention 4 figure.Be filled with the nano grade inorganic filler of 2～3% weight ratios in (but also radially simple tension) polypropylene (PP) inner plastic 18 of axially and radially biaxial tension in the present embodiment 4 composite plastic tube walls 17, as calcium carbonate, has the micron order mineral filler calcium carbonate that is filled with 20～30% weight ratios in high density polyethylene (HDPE) (HDPE) outer plastic layer 19 of (also concave-convex type or circular arc type) of the hollow enhancing structure of corrugation.Outer plastic layer 19 is positioned at inner layer outer surface in the form of a ring and the internal layer fusion is compound.
Embodiment 5:
Fig. 9 has provided inventive embodiments 5 figure.Present embodiment 5 composite plastic tube walls 20 by axially and (but also radially monoway stretch-oriented) high density polyethylene (HDPE) (HDPE) inner plastic 21 of radially biaxial tension and high density polyethylene (HDPE) (HDPE) outer plastic layer 22 that is arranged in the fusion with it of internal layer outer surface compound corrugation type (or concave-convex type circular arc type) hollow-core construction in the form of a ring form.
One end caliber of composite plastic pipe 23 enlarges the joint socket 24 that has the pipeline socket joint to connect.One end of composite plastic pipe 25 inserts in the joint socket 24, and rubber seal 26 is arranged between the two.
Claims (11)
1, a kind of tube wall has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, the tube wall internal layer that it is characterized in that composite plastic pipe have one deck at least through in the footpath and axial biaxial tension orientation or through radially monoway stretch-oriented or radially tensile strength be higher than the plastic layer of axial tensile strength, be compounded with the outer plastic layer of hollow enhancing structure at inner layer outer surface.
2, tube wall according to claim 1 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, it is characterized in that the hollow enhancing structure of outer plastic layer is corrugation type or concave-convex type or circular arc type or cast or rectangle at the section shape along the pipe axial direction.
3, tube wall according to claim 1 and 2 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, it is characterized in that outer plastic layer is to be composited by metal and plastics.
4, tube wall according to claim 1 and 2 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, it is characterized in that outer plastic layer is compound with internal layer in the form of a ring.
5, tube wall according to claim 1 and 2 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, and shape and internal layer are compound in the shape of a spiral to it is characterized in that outer plastic layer.
6, tube wall according to claim 1 and 2 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, it is characterized in that internal layer by the radial and axial biaxial tension orientation of one deck at least or radially monoway stretch-oriented or radially tensile strength be higher than the plastic layer of axial tensile strength and one deck at least axially monoway stretch-oriented or axial tensile strength be higher than radially that the plastic layer of tensile strength is composited.
7, tube wall according to claim 1 and 2 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, it is characterized in that outer plastic layer and interior interlayer have adhesive layer.
8, tube wall according to claim 1 and 2 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, it is characterized in that outer plastic layer and internal layer fusion are compound.
9, tube wall according to claim 1 and 2 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, it is characterized in that tube wall internal layer, outer plastic layer adopt different types of plastics to make.
10, tube wall according to claim 1 and 2 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, it is characterized in that internal layer, the outer plastic layer of tube wall is filled with sodium meter level or micron-sized mineral filler respectively.
11, tube wall according to claim 1 and 2 has the macromolecule stretch orientation composite plastic pipe of hollow enhancing structure, it is characterized in that at least one end mouth of pipe of plastic tube is formed with the joint socket that the pipeline socket joint connects through diametric(al) expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129815A CN1109212C (en) | 2000-10-30 | 2000-10-30 | High-strength composite plastic pipe of stretched and oriented polymer and with hollow reinforced structure in wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129815A CN1109212C (en) | 2000-10-30 | 2000-10-30 | High-strength composite plastic pipe of stretched and oriented polymer and with hollow reinforced structure in wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1287238A CN1287238A (en) | 2001-03-14 |
| CN1109212C true CN1109212C (en) | 2003-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00129815A Expired - Fee Related CN1109212C (en) | 2000-10-30 | 2000-10-30 | High-strength composite plastic pipe of stretched and oriented polymer and with hollow reinforced structure in wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1109212C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7679087B2 (en) | 1996-01-19 | 2010-03-16 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor active region of TFTs having radial crystal grains through the whole area of the region |
| US7709837B2 (en) | 1996-01-19 | 2010-05-04 | Semiconductor Energy Laboratory Co., Ltd | Semiconductor device and its manufacturing method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594411B (en) * | 2017-01-03 | 2020-02-07 | 上海瑞皇管业科技股份有限公司 | Polyethylene polypropylene reinforced composite double-wall corrugated pipe |
| CN114633525A (en) * | 2020-12-15 | 2022-06-17 | 全能管业科技(衢州)有限公司 | Degradable environment-friendly double-wall corrugated pipe and processing device thereof |
| CN113217305B (en) * | 2021-05-17 | 2022-05-13 | 广州赛特新能源科技发展有限公司 | Composite shaft of wind driven generator and wind driven generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5127442A (en) * | 1988-08-17 | 1992-07-07 | Oy Kwh Pipe Ab | Plastic tube formed by spiral winding of hollow section |
| DE19512525C1 (en) * | 1995-04-06 | 1996-04-11 | Dornier Gmbh | Lightweight tubular component or hollow section with outer or inner sleeve |
| CN2323226Y (en) * | 1997-05-29 | 1999-06-09 | 周吉祥 | Ribbed pipe |
| CN2364302Y (en) * | 1998-11-19 | 2000-02-16 | 李康宁 | Plastic coated integrated thermal insulating metal pipe |
| CN2575108Y (en) * | 2002-09-23 | 2003-09-24 | 中国冶金建设集团包头钢铁设计研究总院 | Heat treatment technological apparatus for vehicle crankshaft normalization |
-
2000
- 2000-10-30 CN CN00129815A patent/CN1109212C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5127442A (en) * | 1988-08-17 | 1992-07-07 | Oy Kwh Pipe Ab | Plastic tube formed by spiral winding of hollow section |
| DE19512525C1 (en) * | 1995-04-06 | 1996-04-11 | Dornier Gmbh | Lightweight tubular component or hollow section with outer or inner sleeve |
| CN2323226Y (en) * | 1997-05-29 | 1999-06-09 | 周吉祥 | Ribbed pipe |
| CN2364302Y (en) * | 1998-11-19 | 2000-02-16 | 李康宁 | Plastic coated integrated thermal insulating metal pipe |
| CN2575108Y (en) * | 2002-09-23 | 2003-09-24 | 中国冶金建设集团包头钢铁设计研究总院 | Heat treatment technological apparatus for vehicle crankshaft normalization |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7679087B2 (en) | 1996-01-19 | 2010-03-16 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor active region of TFTs having radial crystal grains through the whole area of the region |
| US7709837B2 (en) | 1996-01-19 | 2010-05-04 | Semiconductor Energy Laboratory Co., Ltd | Semiconductor device and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1287238A (en) | 2001-03-14 |
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Legal Events
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 129815.1 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 257510.8 utility model patent to be given up, and in the 19 volume of the 21 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030521 Termination date: 20121030 |