CN106499877B - Multiple tube and manufacturing method - Google Patents
Multiple tube and manufacturing method Download PDFInfo
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- CN106499877B CN106499877B CN201611120643.5A CN201611120643A CN106499877B CN 106499877 B CN106499877 B CN 106499877B CN 201611120643 A CN201611120643 A CN 201611120643A CN 106499877 B CN106499877 B CN 106499877B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 34
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 33
- 239000004698 Polyethylene Substances 0.000 claims abstract description 29
- 150000001875 compounds Chemical class 0.000 claims abstract description 21
- 229920000573 polyethylene Polymers 0.000 claims abstract description 17
- -1 polyethylene Polymers 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 10
- 239000012943 hotmelt Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 210000002615 epidermis Anatomy 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000012760 heat stabilizer Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000012372 quality testing Methods 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims 1
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 150000001805 chlorine compounds Chemical class 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000034 Plastomer Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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
- F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
-
- 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
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to plastic pipe technical fields, more particularly, to a kind of multiple tube and manufacturing method.Including：Tube body；The tube body is made of internal layer, outer layer and middle layer；The internal layer and the outer layer are compound by the middle layer；The internal layer is polyethylene, and the outer layer is polyvinyl chloride layer.To alleviate the technical issues of polyethylene and polyvinyl chloride compound use fall off in the prior art.
Description
Technical field
The present invention relates to plastic pipe technical fields, more particularly, to a kind of multiple tube and manufacturing method.
Background technique
In modern industry, extensive use is had been obtained in pipeline.In the industries such as electric power, cement, mine and steel, especially
It needs wearability pipeline.The lime-ash and flyash of such as power plant are conveyed by the abrasion-proof pipe on production line.But by
In the complexity of application environment, increasingly higher demands also proposed to the performance of pipeline material.All kinds of pipelines is commonly used now
It is generally existing have a single function, limited capacity or it is at high cost the problems such as, therefore developing novel high-performance compound pipeline complex pipeline seems especially heavy
It wants.
Currently, PVC (polyvinyl chloride) resin is one of most popular plastic material in plastic pipe, PVC is a kind of
The polymeric material of vinyl, material are a kind of amorphism materials.It is a kind of nontoxic, odorless white powder, stretch-proof is strong
Degree is high, and matter is hard and creep resistance is higher, during PVC thermoplastic shaping, needs to add some additives in PVC, is used to
Increase the various performances of PVC；Also it is typical thermoplastic material there are also polyvinyl resin, can not adds during processing
Chemical addition agent, and itself be the nontoxic inflammability plastics of odorless, tasteless, tensile strength is lower, and anti-creep is denaturalized not
It is good, but toughness is strong, shock resistance is excellent, stable chemical performance.
But since the fusing point of polyethylene is at 100-130 ° or so, and the processing temperature general control of polyvinyl chloride exists
Between 170-190 °, be in the prior art it is directly that polyvinyl chloride and polyethylene is compound, so very hold so as to fall off therebetween.
Summary of the invention
The purpose of the present invention is to provide a kind of multiple tubes, are in the prior art answered polyethylene and polyvinyl chloride with alleviating
Close the technical issues of use falls off.
A kind of multiple tube provided by the invention, including：Tube body；
The tube body is made of internal layer, outer layer and middle layer；The internal layer and the outer layer are compound by the middle layer；
The internal layer is polyethylene, and the outer layer is polyvinyl chloride layer.
Further, the middle layer is adhering resin layer, and the internal layer and the outer layer are bonded.
Further, the middle layer is hot-setting adhesive.
Further, the middle layer is elastic layer；
The elastic layer is compound with the internal layer and the outer layer respectively.
Further, the elastic layer is spring；
It is fixedly connected on the inside of multiple spring one ends and the outer layer；
Multiple spring other ends are connected with the outside of the internal layer；
Protrusion is arranged in the outside of the internal layer, and the protrusion with the other end of the spring for connecting.
Further, both ends are respectively arranged with annular groove and annular protrusion in the middle layer, for making the pipe
It is connected between body.
Further, internal layer described in one end of multiple tube and the flush setting of the outer layer, the inside of internal layer is set at opening's edge
It is equipped with internal screw thread；The other end of multiple tube, the internal layer stretch out the outer layer setting, and internal layer is set on the excircle of extension
It is equipped with external screw thread；Internal screw thread and external screw thread cooperate for the connection between adjacent tubes.
Further, adsorption layer is additionally provided on the internal layer, the both ends of the adsorption layer are connected to the two of the tube body
End.
Further, the manufacturing method of multiple tube, specific manufacturing method are as follows：
Step 1：Polyethylene former material material is managed by mold hot melt extruded extrusion core tube layer PE, is carried out to core pipe layer PE pipe
Water-cooled vacuum sizing；
Step 2：After the heating of core pipe exocuticle baking oven, on adhering resin hot-melt extruded to core pipe；
Step 3：Core pipe enter in vacuum mold after epidermis is air-cooled, vacuum mold is continued；
Step 4：Polyvinyl chloride plus various additives hot-melt extruded are compounded on core pipe exocuticle adhering resin layer, shape
At outer layer PVC pipe layer, the compound success of product after carrying out water cooling and Vacuum shaping；
Step 5：Quality testing, qualified products outbound are carried out to compound successful product, substandard product carries out at crushing
Reason.
Further, the additive be heat stabilizer, organic tin stabilizer, it is strong with the outside for increasing multiple tube
Degree.
A kind of multiple tube provided by the invention, including：Tube body；The tube body is made of internal layer, outer layer and middle layer；It is described
Internal layer and the outer layer are compound by the middle layer；The internal layer is polyethylene, and the outer layer is polyvinyl chloride layer.In
Interbed is compound by polyethylene and polyvinyl chloride, to overcome polyethylene in the prior art and polyvinyl chloride that the technology to fall off is used in combination
Problem.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the perspective view of multiple tube provided in an embodiment of the present invention；
Fig. 2 is the main view of multiple tube provided in an embodiment of the present invention；
Fig. 3 is the cross-sectional view of multiple tube provided in an embodiment of the present invention；
Fig. 4 is the flow chart of composite pipe production method provided in an embodiment of the present invention.
Icon：100- internal layer；200- middle layer；300- outer layer.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment 1
Fig. 1 is the perspective view of multiple tube provided in an embodiment of the present invention；Fig. 2 is multiple tube provided in an embodiment of the present invention
Main view；Fig. 3 is the cross-sectional view of multiple tube provided in an embodiment of the present invention.As shown in Figure 1,2 and 3, one kind provided by the invention
Multiple tube, including：Tube body；
The tube body is made of internal layer 100, outer layer 300 and middle layer 200；The internal layer 100 and the outer layer 300 pass through
The middle layer 200 is compound；
The internal layer 100 is polyethylene, and the outer layer 300 is polyvinyl chloride layer.
Wherein, internal layer 100 or polypropylene.
Wherein, outer layer 300 or steel.
A kind of multiple tube provided by the invention, including：Tube body；The tube body is by internal layer 100, outer layer 300 and middle layer 200
It constitutes；The internal layer 100 and the outer layer 300 are compound by the middle layer 200；The internal layer 100 is polyethylene, described outer
Layer 300 is polyvinyl chloride layer.It is by middle layer 200 that polyethylene and polyvinyl chloride is compound, to overcome polyethylene in the prior art
The technical issues of falling off with polyvinyl chloride compound use.
The defect between two kinds of plastic pipes can also be made up, PVC, which is arranged, by outer layer 300 can reduce PE layers old
Change；And PE layers of quality are softer, additionally it is possible to PE layers of reduction be protected to be scratched by sharp object；There are also can all add in exactly general layer of PVC
Some additives, in this way, layer of PVC, which may decomposite, carrys out some harmful substances, it, can by being arranged PE layers inside PVC
The harmful substance come is decomposited to completely cut off PVC, avoids pollution the medium of tubing conveying；Due to outer layer 300PVC pressure resistance anti-creep
By force, anti-pressure ability is three times of PE tubing, thus multiple tube on the basis of pure PE tube wall thickness can with reduced thickness ratio, from
And the weight of tubing is reduced, it is easy to carry.
On the basis of the above embodiments, further, the middle layer 200 is adhering resin layer, by the internal layer
100 and the outer layer 300 be bonded.
Wherein, adhering resin refers to that the functional gene group graft of thermoplastic resin or hot plastomer are main component,
And mixed with modified resin, tackifier, the ingredients such as filling and manufactured mold have a higher melt, excellent mechanical property and anti-
Answer active resin material.
Adhering resin has the advantages that a variety of：1. heat resistance is good；
2. having mechanical property similar with conventional synthetic resin；
3. having good compatibility with conventional synthetic resin；
4. having processing performance similar with conventional synthetic resin；
5. having excellent adhesive property.
In the present embodiment, the middle layer 200 is adhering resin layer, will be described by the excellent performance of adhering resin
Internal layer 100 and the outer layer 300 are bonded, so that the stability between each level of multiple tube increases.
On the basis of the above embodiments, further, the middle layer 200 is hot-setting adhesive.
In the present embodiment, hot-setting adhesive combines the speciality of hot melt adhesive and structure glue, and quick solidifying, intensity is high, without organic molten
Agent, 100% solid content；And the viscous of different surfaces can be applicable to according to the difference of viscosity, curing time and additive
It connects, it can be preferably compound by internal layer 100 and outer layer 300.
On the basis of the above embodiments, further, the middle layer 200 is elastic layer；
The elastic layer is compound with the internal layer 100 and the outer layer 300 respectively.
In the present embodiment, middle layer 200 is elastic layer；By elastic layer respectively with the internal layer 100 and the outer layer 300
It is compound, in this way, just having one layer of buffer layer between internal layer 100 and outer layer 300, during multiple tube transport, in multiple tube
Outer surface by external impact force when, elastic layer can buffer external power, be damaged with reducing multiple tube
Probability；Also, during multiple tube use, the pipeline that is deep into may also can be smaller than the diameter of multiple tube, in this way, multiple
Closing pipe can be also deep into pipeline by the contraction of elasticity, and the range for being applicable in multiple tube is more extensive.
On the basis of the above embodiments, further, the elastic layer is spring；
Multiple spring one ends are fixedly connected with the inside of the outer layer 300；
Multiple spring other ends are connected with the outside of the internal layer 100；
Protrusion is arranged in the outside of the internal layer 100, and the protrusion with the other end of the spring for connecting.
Wherein, intermediate to be existed by multiple annular grooves and annular protrusion group layer, the fixed setting of multiple annular grooves
The outside of internal layer 100, multiple annular protrusion one end are fixedly connected with the inside of outer layer 300, and multiple annular grooves and the ring
The corresponding setting of shape raised position, so that internal layer 100 and outer layer 300 connect.
In the present embodiment, multiple spring one ends are fixedly connected with the inside of the outer layer 300；Multiple springs are another
One end is connected with the outside of the internal layer 100；In this way, the both ends of spring are connect with internal layer 100 and outer layer 300 respectively, so that
Internal layer 100 and outer layer 300 connect；Protrusion is set in the outside of internal layer 100, one end of spring is connect with protrusion, can avoid bullet
After spring is connect with the wall of internal layer 100, internal layer 100 is caused to leak with spring junction, so that outer layer 300 is by internal layer
The medium pollution of 100 water conservancy diversion, and internal layer 100 can also be increased by setting protrusion on the outside of internal layer 100 and outer layer 300 connects
Convenience can also improve the installation speed between tube body.
On the basis of the above embodiments, further, in the middle layer 200 both ends be respectively arranged with annular groove and
Annular protrusion, for making to connect between the tube body.
Wherein, there are many connection types between tube body and tube body, such as：One end of tube body can be provided with fixation
It covering, is provided with card slot on fixing sleeve, one end of tube body is provided with shackle member, shackle member can be shunk by pressing,
When being connected with each other between tube body, pressing clamping enters tube body in fixing sleeve, when pipe body movement is to groove position, shackle member
Engage with card slot, makes to connect between tube body.
In addition, the both ends of middle layer 200 are provided with magnet, it can attracting each other by magnet between tube body and tube body
It is attached.
In the present embodiment, both ends are respectively arranged with annular groove and annular protrusion in the middle layer 200, between tube body
When interconnection, it can will be connected between tube body, directly by the mating connection between annular slot and annular protrusion later right
Junction is sealed processing, to reduce the outflow of medium in internal layer 100.
On the basis of the above embodiments, further, internal layer 100 described in one end of multiple tube and the outer layer 300 are neat
Head setting, the inside of internal layer 100 is provided with internal screw thread at opening's edge；The other end of multiple tube, the internal layer 100 stretch out described outer
Layer 300 is arranged, and internal layer 100 is provided with external screw thread on the excircle of extension；Internal screw thread and external screw thread mutual cooperation are used for
Connection between adjacent tubes.
In the present embodiment, internal layer 100 described in one end of multiple tube and the flush setting of the outer layer 300, the inside of internal layer 100
It is provided with internal screw thread at opening's edge, is stretched out by internal layer 100 on the excircle of 300 part of outer layer and is provided with external screw thread, external screw thread
Mating connection between internal screw thread will connect between adjacent tubes, and this connection type can to connect between adjacent tubes
The airtightness connect is high, can be not provided with sealant in outside, the circulation medium in internal layer 100 will not flow out.
On the basis of the above embodiments, further, adsorption layer, the adsorption layer are additionally provided on the internal layer 100
Both ends be connected to the both ends of the tube body.
In the present embodiment, adsorption layer is additionally provided on internal layer 100, adsorption layer can adsorb one entered in internal layer 100
A little impurity reduce the contaminated situation of liquid in tube body internal layer 100 so as to keep clean state in the internal layer 100 of tube body；
The both ends of adsorption layer are connected to the both ends of the tube body, in this way when adsorption layer is replaced or is overhauled, are easy
It is replaced.
Embodiment 2
Fig. 4 is the flow chart of composite pipe production method provided in an embodiment of the present invention.As shown in figure 4, the manufacture of multiple tube
Method；
Specific manufacturing method is as follows：
Step 1：Polyethylene former material material is managed by mold hot melt extruded extrusion core tube layer PE, is carried out to core pipe layer PE pipe
Water-cooled vacuum sizing；
Step 2：After the heating of core pipe exocuticle baking oven, on adhering resin hot-melt extruded to core pipe；
Step 3：Core pipe enter in vacuum mold after epidermis is air-cooled, vacuum mold is continued；
Step 4：Polyvinyl chloride plus various additives hot-melt extruded are compounded on core pipe exocuticle adhering resin layer, shape
At outer layer 300PVC tubing layer, the compound success of product after carrying out water cooling and Vacuum shaping；
Step 5：Quality testing, qualified products outbound are carried out to compound successful product, substandard product carries out at crushing
Reason.
On the basis of the above embodiments, further, the additive be heat stabilizer, organic tin stabilizer, with
In the external intensity for increasing multiple tube.
Wherein, additive can also be other types, such as：Organic phosphite and hindered phenol, processing aid, profit
Lubrication prescription, plasticizer, benzoic ether, hydrogen chloride and fatty alcohol acid ester etc..
In the present embodiment, add which kind of additive can make polyvinyl chloride obtain more performances in polyvinyl chloride,
Polyvinyl chloride can be made to adapt to increase its applicability in a variety of different environment.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (4)
1. a kind of multiple tube, which is characterized in that including：Tube body；
The tube body is made of internal layer (100), outer layer (300) and middle layer (200)；
The internal layer (100) and the outer layer (300) are compound by the middle layer (200)；
The internal layer (100) is polyethylene, and the outer layer (300) is polyvinyl chloride layer；
The middle layer (200) is adhering resin layer, and the internal layer (100) and the outer layer (300) are bonded；
Or the middle layer (200) is hot-setting adhesive；
Or the middle layer (200) is elastic layer；
The elastic layer is compound with the internal layer (100) and the outer layer (300) respectively；
The elastic layer is spring；
It is fixedly connected on the inside of multiple spring one ends and the outer layer (300)；
Multiple spring other ends are connected with the outside of the internal layer (100)；
Protrusion is arranged in the outside of the internal layer (100), and the protrusion with the other end of the spring for connecting；
Internal layer described in one end of multiple tube (100) and the outer layer (300) flush setting, the inside of internal layer (100) is at opening's edge
It is provided with internal screw thread；The other end of multiple tube, the internal layer (100) stretch out outer layer (300) setting, and internal layer (100) is being stretched
External screw thread is provided on the excircle of part out；Internal screw thread and external screw thread cooperate for the connection between adjacent tubes；
It is additionally provided with adsorption layer on the internal layer (100), the both ends of the adsorption layer are connected to the both ends of the tube body.
2. multiple tube according to claim 1, which is characterized in that both ends are respectively arranged with ring on the middle layer (200)
Connected in star and annular protrusion, for making to connect between the tube body.
3. having the manufacturing method such as the described in any item multiple tubes of claim 1-2, which is characterized in that specific manufacturing method
It is as follows：
Step 1：Polyethylene former material material is managed by mold hot melt extruded extrusion core tube layer PE, carries out water cooling to core pipe layer PE pipe
Vacuum shaping；
Step 2：After the heating of core pipe exocuticle baking oven, on adhering resin hot-melt extruded to core pipe；
Step 3：Core pipe enter in vacuum mold after epidermis is air-cooled, vacuum mold is continued；
Step 4：Polyvinyl chloride plus various additives hot-melt extruded are compounded on core pipe exocuticle adhering resin layer, formed outer
Layer (300) PVC pipe layer, the compound success of product after carrying out water cooling and Vacuum shaping；
Step 5：Quality testing, qualified products outbound are carried out to compound successful product, substandard product carries out pulverization process.
4. the manufacturing method of multiple tube according to claim 3, which is characterized in that the additive is heat stabilizer, has
Machine tin stabilizer, with the external intensity for increasing multiple tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611120643.5A CN106499877B (en) | 2016-12-08 | 2016-12-08 | Multiple tube and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611120643.5A CN106499877B (en) | 2016-12-08 | 2016-12-08 | Multiple tube and manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN106499877A CN106499877A (en) | 2017-03-15 |
| CN106499877B true CN106499877B (en) | 2018-11-27 |
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| CN201611120643.5A Active CN106499877B (en) | 2016-12-08 | 2016-12-08 | Multiple tube and manufacturing method |
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|---|---|---|---|---|
| CN109084095A (en) * | 2018-09-10 | 2018-12-25 | 甘志超 | PE or PP enhancing composite polrvinyl chloride winding pipe and preparation method thereof |
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