CN201354891Y - Plastic wound structural wall pipe - Google Patents

Plastic wound structural wall pipe Download PDF

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Publication number
CN201354891Y
CN201354891Y CNU2008201581079U CN200820158107U CN201354891Y CN 201354891 Y CN201354891 Y CN 201354891Y CN U2008201581079 U CNU2008201581079 U CN U2008201581079U CN 200820158107 U CN200820158107 U CN 200820158107U CN 201354891 Y CN201354891 Y CN 201354891Y
Authority
CN
China
Prior art keywords
pipe
tube
plastic
square tube
molecular weight
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
Application number
CNU2008201581079U
Other languages
Chinese (zh)
Inventor
苏长裕
李华维
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI QINGYUAN PIPE TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI QINGYUAN PIPE TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI QINGYUAN PIPE TECHNOLOGY Co Ltd filed Critical SHANGHAI QINGYUAN PIPE TECHNOLOGY Co Ltd
Priority to CNU2008201581079U priority Critical patent/CN201354891Y/en
Application granted granted Critical
Publication of CN201354891Y publication Critical patent/CN201354891Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a plastic wound structural wall pipe, which is obtained by spirally winding plastic square pipe and by welding through hot-melt adhesive, wherein the plastic square pipe is manufactured by using ultra-high molecular weight polyethylene as an external layer and by using common polyethylene as an internal layer. As the utility model adopts the ultra-high molecular weight polyethylene as the external layer of the square pipe, the pipe not only has excellent scratch resistance and corrosion resistance, but also improves the ring stiffness of the pipe workpiece.

Description

Plastic winding structure tube
Technical field
The utility model relates to a kind of plastic tube, relates in particular to a kind of plastic winding structure tube.
Background technique
At present, the tubing that domestic underground water supply and drainage pipe-line system is used mainly contains concrete pipe, concrete reinforced pipe and cast iron tube, because it is bigger than length and vehicle flowrate that it builds the time limit, the buried concrete waste pipe in some highway section and cast iron water pipe are damaged in succession aging, cause municipal drainage to stop up, the water pipe explosion, not only bring inconvenience to citizen's life, and because of working procedure complicated, the pipe joint number is more, leakage proof is difficult in time handling, accumulate over a long period and not only can cause road foundation to sink, effluent seepage, also can pollute soil property, the water source becomes public hazards.For this reason, adopt have good withstand voltage, light weight, corrosion-resistant, environment protection type tubing become the task of top priority.
Recent years, all types of plastic tubing rises gradually at home, and progressively replaces concrete pipe, concrete reinforced pipe and cast iron tube.With respect to concrete pipe, concrete reinforced pipe and cast iron tube, plastic tube have light weight, corrosion-resistant, the low pollution or free of contamination remarkable advantage, and plastic tube is also longer working life under identical withstand voltage condition.What plastic tube was relatively more commonly used at present is the pvc pipe material, though price is lower, it is heavier to exist quality, and withstand voltage deficiency has shortcomings such as a small amount of pollution.And the HDPE solid wall pipe, though function admirable, cost is higher, waste material.So a kind of novel plastic winding structural wall tube arises at the historic moment, it has kept the advantage of common plastics tubing, has overcome their some shortcomings simultaneously again.
The polythene winding structure wall pipeline purposes is boundless, and its main advantage can use mini-plant to produce the tubing of bore greater than 2000mm aspect bore.But because the raw material that polythene winding structure wall pipeline uses mainly is a polyethylene, though and polyethylene self has toughness preferably, but Young's modulus is less, the tubing of making is if satisfy the ring stiffness of tubing, must increase the product substance, even like this, in a lot of practical engineering application, because limitation of field condition, often make outer pipe wall be easy to be subjected to scratch or impact and produce broken hole, thereby influence the product engineering application quality, can't satisfy the requirement of mal-condition, so the application and the development of polythene winding structure wall pipeline have been limited.
The model utility content
The purpose of this utility model in order to overcome the problems referred to above that prior art exists, provides a kind of plastic winding structure tube with new structure exactly.
The purpose of this utility model is achieved in that a kind of plastic winding structure tube, twine and be made of welded connection by plastics square tube spiral with hot melt adhesive, described plastics square tube with ultra-high molecular weight polyethylene as outer, be made as internal layer with common polythene.
The outer field thickness of described plastics square tube is the 2%-50% of pipe thickness, and the thickness of internal layer is the 50%-98% of pipe thickness.
The utility model plastic winding structure tube is owing to adopted the skin of ultra-high molecular weight polyethylene as square tube, make pipeline not only have good scratch resistance wound, decay resistance, and because the high elastic modulus of ultra-high molecular weight polyethylene, can improve the ring stiffness of tubing, reduce the use amount of polythene material.
Description of drawings
The sectional structure schematic representation of Fig. 1 the utility model plastic winding structure tube;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
Referring to Fig. 1, Fig. 2, plastic winding structure tube of the present utility model, be made of welded connection by the winding of plastics square tube 1 spiral and with hot melt adhesive 2, its axial section comprises the rectangle square tube 1 that a plurality of structures are identical, be welded to connect by hot melt adhesive 2 between square tube and the square tube, form a plurality of continuous I-shaped die structures.Plastics square tube 1 with ultra-high molecular weight polyethylene as outer 11, be made as internal layer 12 with common polythene.Outer field thickness is the 2%-50% of pipe thickness, and the thickness of internal layer is the 50%-98% of pipe thickness.
The making method of plastic winding structure tube of the present utility model is, at first use an extruder, with High molecular weight polyethylene as raw material, the control processing temperature is 190~230 ℃, melt extrude the outer layered material embryo of ultra-high molecular weight polyethylene, use another extruder as square tube, with common polythene as raw material, the control processing temperature is 160~200 ℃, extrudes the interior layered material embryo of common polythene as square tube.Then outer layered material embryo and interior layered material embryo are combined by the extruder core together, the through port mould is extruded again, behind the cooling unit cooling and shaping, promptly obtains the inside and outside two-layer square tube that is made of different materials.Square tube is sent into wind carry out that spiral twines and be welded to connect,, promptly become plastic winding structure tube of the present utility model through cooling, typing, fixed length cutting with hot melt adhesive.

Claims (2)

1, a kind of plastic winding structure tube is characterized in that: twine and be made of welded connection by plastics square tube spiral with hot melt adhesive, described plastics square tube with ultra-high molecular weight polyethylene as outer, be made as internal layer with common polythene.
2, plastic winding structure tube as claimed in claim 1 is characterized in that: the outer field thickness of described plastics square tube is the 2%-50% of pipe thickness, and the thickness of internal layer is the 50%-98% of pipe thickness.
CNU2008201581079U 2008-12-29 2008-12-29 Plastic wound structural wall pipe Expired - Fee Related CN201354891Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201581079U CN201354891Y (en) 2008-12-29 2008-12-29 Plastic wound structural wall pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201581079U CN201354891Y (en) 2008-12-29 2008-12-29 Plastic wound structural wall pipe

Publications (1)

Publication Number Publication Date
CN201354891Y true CN201354891Y (en) 2009-12-02

Family

ID=41411232

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201581079U Expired - Fee Related CN201354891Y (en) 2008-12-29 2008-12-29 Plastic wound structural wall pipe

Country Status (1)

Country Link
CN (1) CN201354891Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121545A (en) * 2011-02-28 2011-07-13 姚家红 Double-wall winding pipe made of high density polyethylene steel strips
CN102734569A (en) * 2012-06-11 2012-10-17 上海清远管业科技有限公司 High density polyethylene/cross-linked polyethylene compound double-wall coil pipe
CN111424481A (en) * 2020-03-10 2020-07-17 西南交通大学 Expansive soil cutting structure and construction method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121545A (en) * 2011-02-28 2011-07-13 姚家红 Double-wall winding pipe made of high density polyethylene steel strips
CN102734569A (en) * 2012-06-11 2012-10-17 上海清远管业科技有限公司 High density polyethylene/cross-linked polyethylene compound double-wall coil pipe
CN111424481A (en) * 2020-03-10 2020-07-17 西南交通大学 Expansive soil cutting structure and construction method thereof

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091202

Termination date: 20131229

C17 Cessation of patent right