CN104385647B - Low elongation multi-layer flexible pipe and its manufacture method - Google Patents
Low elongation multi-layer flexible pipe and its manufacture method Download PDFInfo
- Publication number
- CN104385647B CN104385647B CN201410416798.8A CN201410416798A CN104385647B CN 104385647 B CN104385647 B CN 104385647B CN 201410416798 A CN201410416798 A CN 201410416798A CN 104385647 B CN104385647 B CN 104385647B
- Authority
- CN
- China
- Prior art keywords
- layer
- flexible pipe
- pvc
- adhesive
- tpu
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 239000010410 layer Substances 0.000 claims description 164
- 239000012790 adhesive layer Substances 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 239000008188 pellet Substances 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 229920000459 Nitrile rubber Polymers 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 230000007306 turnover Effects 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 238000004781 supercooling Methods 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920004933 Terylene® Polymers 0.000 claims description 3
- 239000006227 byproduct Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 22
- 229920000915 polyvinyl chloride Polymers 0.000 description 22
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 16
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 16
- 238000004073 vulcanization Methods 0.000 description 10
- 239000000835 fiber Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000003079 shale oil Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/005—Hoses, i.e. flexible
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a kind of low elongation multi-layer flexible pipe and its manufacture method.This method comprises the following steps：Manufacture first layer, the second layer and the third layer of flexible pipe；First layer is introduced in third layer；First layer and third layer are vulcanized, first layer and third layer stretched along the direction for being roughly parallel to its length；The second layer is introduced in cured first layer and third layer, vulcanized.The present invention can be effectively reduced the elongation percentage of multi-layer flexible pipe, while keep its rebound performance, so as to lift the performance of multi-layer flexible pipe.
Description
Technical field：
The present invention relates to a kind of low elongation multi-layer flexible pipe and its manufacture method, in particular to a kind of low elongation fluid
Multi-layer flexible pipe and its manufacture method are conveyed, multilayer is conveyed with fracturing fluid more particularly to a kind of low elongation shale oil-gas mining
Flexible pipe and its manufacture method, belong to fluid transmission equipment technology field.
Background technology：
What exploitation shale oil gas was usually used at present is hydraulic fracturing technology, and this technology is to utilize fracturing fluid pressure break rock
Layer, to discharge shale oil gas.The conveyance conduit that fracturing fluid needs to use middle and long distance is transported, currently used conveyance conduit is main
It is flexible pipe.
Flexible pipe has pressure-bearing high, and feed flow is big, easy to connect, and weatherability chemical resistance is good, with adapting to different terrain
Looks, it is in flat in non-working condition, easily winding, stores the advantages that transportation volume is small.Existing fluid-conveying hose is usual
It is made up of multilayer, outermost layer contacts with ground, shields；Intermediate layer, enhancement layer is also, is generally formed by fibrage,
Play a part of to strengthen pipeline strength；Innermost layer contacts with the liquid conveyed, generally as manufactured by corrosion-resistant material.
The content of the invention：
Existing flexible pipe manufacture method can select coextruding method or turn over band method.Turn over band method make it is relatively easy, during unit
Between yield it is high, equipment investment is less, and the hose size stability produced is good, after use with good rebound performance.
In use, the pressure of fluid would generally make to turn over the length increase with the flexible pipe manufactured by method.
It is an object of the invention to provide a kind of low elongation multi-layer flexible pipe and its manufacture method, production can be effectively reduced
Flexible pipe elongation percentage, while its rebound performance is kept, so as to lift the performance of multi-layer flexible pipe.
Using be not affected by tube fluid pressure effect when hose length as initial length, the elongation percentage of flexible pipe refers to, by
During the effect of power, the ratio of the difference and initial length of hose length and initial length.
Such as this specification and as used in following claims, " one ", "one" and " one kind " and
"the" is also intended to including plural form, unless context is explicitly indicated other situations.It is used here term " comprising " and " bag
Containing " be intended to include identified method the step of or element, but such step or element do not form exclusive list, side
Method or equipment can include extra step or element.
Hereinafter, for without loss of generality, when describing multi-layer flexible pipe structure, use " first layer ", " second layer ", " third layer " this
A little nouns, these nouns only represent the order that referred to part occurs in the text, and its non-limiting position in flexible pipe, together
When, the similar noun of " first layer ", " second layer ", " third layer " is not expressed or implies that the described layer is single knot in itself
Structure, the layer can also be composite construction.
The manufacture method of low elongation multi-layer flexible pipe, this method comprise the following steps：
（1）Manufacture the first layer of flexible pipe：The raw material of first layer can use high molecule plastic, natural rubber, synthetic rubber
Deng.The manufacture of first layer can use method well-known to those skilled in the art, including but not limited to extrusion molding.Optionally,
The layer can attach adhesive；
（2）Manufacture the second layer of flexible pipe：The raw material of the second layer can use high molecule plastic, natural rubber, synthetic rubber
Can be as first layer Deng, its specific chemical constituent, can also be different.The manufacture of the second layer can use people in the art
Method known to member, including but not limited to extrusion molding.Optionally, the layer can attach adhesive；
（3）Respectively by step（1）And step（2）In obtained first layer be surface-treated with the second layer：First layer with
The surface treatment method of the second layer can be the same or different；
（4）Manufacture third layer：Third layer can be manufactured by fiber by the method including braiding, hot sticky, chemical adhesion etc.,
Wherein the natural fibers or nylon fiber, polyester fiber, aramid fiber etc. such as cotton fiber, flaxen fiber, wool fiber can be selected in fiber
Synthetic fibers etc.；
（5）Bonding between first layer and third layer：By step（3）It is middle be surface-treated after first layer by using
Hauling machine or other mode of traction, introduce inside third layer, the outer surface of first layer is contacted with the inner surface of third layer, and it is right
First layer is vulcanized with third layer, and the mode of vulcanization can be room temperature vulcanization or heat cure or cold cure etc., its
Mode of operation changes with the chemical constituent of first layer and third layer and change of properties, here high-temperature gas can be hot-air,
High-pressure water vapor or other gases.In this step, can select to stretch flexible pipe；
（6）Turn over band：As needed, can select to step（5）Product carry out it is inside and outside overturn, first layer is become by internal layer
Into outer layer, the mode of upset can be by the pressure of fluid, mechanical traction or other modes., can be according to need after band is turned over
Will, select product carrying out surface roller aperture.
（7）Bonding between the second layer and third layer：By step（3）It is middle be surface-treated after the second layer by using
Hauling machine or other mode of traction, introduce step（6）In obtained product, and vulcanize.The mode of vulcanization can be with step（5）In
Vulcanization it is identical or different.Vulcanization can be room temperature vulcanization or heat cure or cold cure etc., and its is specific
Mode of operation changes with the chemical constituent of the second layer and third layer and change of properties, here high-temperature gas can be hot-air,
High-pressure water vapor or other gases.The step in, can be as needed, flexible pipe is stretched.
The operation stretched to body can be in step（5）With step（7）In any one step in carry out, also may be used
In step（5）With step（7）In all carry out.Can be with identical with mode in the two steps, the step of stretching, can also not
Together.
The specific steps of stretching can have a variety of, including but not limited to the example below：Preset body after the stretch
Elongation, disposable stretching reach the length value until body, may be selected to maintain a period of time after stopping stretching；Preset pipe
Each elongation and total elongation of the body in multi-drawing, then stopped by multi-drawing until body arrival total elongation
It may be selected to maintain a period of time after only stretching；Body one end is connected with an object, one is preset and acts on body
Pulling force numerical value, keep the pulling force size constant, body stretched by the object, until body is no longer elongated, stop drawing
The length can be maintained after stretching for a period of time.
The mode of stretching can be mechanical traction, extruding or other method.Mechanical traction can be realized by hauling machine,
Also can be by other means.When using hauling machine, one end of body can be fixed, connects the other end of hauling machine and body,
Tractive force is applied to body by hauling machine；Tractive force can also be applied to body by hauling machine simultaneously at both ends；Can also
Multiple positions on body apply tractive force simultaneously；Can also be whole or almost on whole body in a manner of approaches uniformity
Apply tractive force.The mode of extruding can utilize rigid object, and pressure is produced to pipeline, cause the increase of its length, such as
Realized by following methods：One or more objects are installed outside body, the object defines a size and is less than body bore
Hole, by making body pass through the hole, the stretching of body is realized using the frictional force between object and body.Other method
Including applying the power beyond tractive force, frictional force form to body, the result is that causing the length of body to increase.
The description to stretched operation is only specific example above, the embodiment for being not considered as unique feasible.
, may be without departing substantially from this principle after the general principle of stretched operation is understood for one of skill in the art
In the case of, carry out the various modifications and variations in form and details to specific steps and the mode for implementing stretching, but these
Modifications and variations are still within the scope of above description.
Beneficial effect：
1. the technical program can be effectively reduced the elongation percentage of multi-layer flexible pipe at work.For example, stretching side is not used
The multi-layer flexible pipe of method manufacture, elongation percentage possibility >=4% under operating pressure, and the multi-layer flexible pipe manufactured according to the technical program,
Elongation percentage under operating pressure can≤1%.
2. good bore rebound performance, multi-layer flexible pipe in use are had according to the multi-layer flexible pipe that the technical program manufactures
Bore has stability, after fluid pressure is removed, can substantially return to original bore.
Embodiment：
Embodiment 1：
The manufacture method of the low elongation multi-layer flexible pipe of the present embodiment comprises the following steps：
（1）First layer of the extrusion manufacture with adhesive layer：First layer pellet and adhesive pellet are via two extruderses
It is expressed into a co-extruding mould, is coextruded the composite bed come through supercooling, it is to carry adhesive that traction, which is flattened into flat tube,
The first layer of layer, wherein adhesive layer thickness is 0.10-0.35mm, and first layer thickness is 0.5-4.0mm, and first layer uses TPU
（Thermoplastic polyurethane）Pellet or TPU/PVC（Polyvinyl chloride）Alloy, part by weight TPU in described TPU/PVC alloys：
PVC=100：0-70；
（2）The second layer of the extrusion manufacture with adhesive layer：Second layer pellet and adhesive pellet are via two extruderses
It is expressed into a co-extruding mould, is coextruded the composite bed come through supercooling, it is to carry adhesive that traction, which is flattened into flat tube,
The second layer of layer, wherein adhesive layer thickness is 0.10-0.35mm, and second layer thickness is 0.5-4.0mm, and the second layer uses TPU
Pellet either TPU/PVC alloys or PVC or PVC/ nitrile rubbers, TPU by weight in described TPU/PVC alloys：PVC
=100：0-70；PVC by weight in described PVC/ nitrile rubbers：Nitrile rubber=100：0-70；
（3）Respectively by step（1）And step（2）In obtained semi-finished product be surface-treated：It is dipped in diphenylmethyl
Alkane diisocyanate（Abbreviation MDI, BASF M20S is used in the present embodiment）Pressed as curing agent and ethyl acetate as solvent
10-30：It is standby after progress Physical penetration in the solution that 70-90 part by weight is made into；
（4）Manufacture third layer：By product design specification (PDS), warp and weft are woven to the third layer of tubulose, third layer is thick
1.5-5.0mm is spent, wherein warp and weft are using one or two kinds of combination in terylene, nylon, aramid fiber；
（5）Bonding between first layer and third layer：By step（3）It is middle be surface-treated after with adhesive layer
First layer is drawn into tubulose third layer, and the steam for being passed through that pressure is 0.10-0.35MPa is fixed at both ends, is reached in hose surface temperature
To after 120 °C, flexible pipe is stretched by hauling machine, the elongation percentage of stretching is row's steam blowing air guarantor after 5%, 4-10 minutes
Pressure is cooled to the temperature of requirement；
（6）Turn over band：Make step（5）Product internal layer become outer layer；
（7）Bonding between the second layer and third layer：By step（3）It is middle be surface-treated after with adhesive layer
The second layer leads introduction step（6）In obtained product, the steam for being passed through that pressure is 0.10-0.35MPa, 4-10 minutes are fixed in both ends
Afterwards, row's steam, blowing air pressurize, it is cooled to the temperature of requirement.
Embodiment 2：
The manufacture method of the low elongation multi-layer flexible pipe of the present embodiment comprises the following steps：
（1）First layer of the extrusion manufacture with adhesive layer：First layer pellet and adhesive pellet are via two extruderses
It is expressed into a co-extruding mould, is coextruded the composite bed come through supercooling, it is to carry adhesive that traction, which is flattened into flat tube,
The first layer of layer, wherein adhesive layer thickness is 0.10-0.35mm, and first layer thickness is 0.5-4.0mm, and first layer uses TPU
（Thermoplastic polyurethane）Pellet or TPU/PVC（Polyvinyl chloride）Alloy, part by weight TPU in described TPU/PVC alloys：
PVC=100：0-70；
（2）The second layer of the extrusion manufacture with adhesive layer：Second layer pellet and adhesive pellet are via two extruderses
It is expressed into a co-extruding mould, is coextruded the composite bed come through supercooling, it is to carry adhesive that traction, which is flattened into flat tube,
The second layer of layer, wherein adhesive layer thickness is 0.10-0.35mm, and second layer thickness is 0.5-4.0mm, and the second layer uses TPU
Pellet either TPU/PVC alloys or PVC or PVC/ nitrile rubbers, TPU by weight in described TPU/PVC alloys：PVC
=100：0-70；PVC by weight in described PVC/ nitrile rubbers：Nitrile rubber=100：0-70；
（3）Respectively by step（1）And step（2）In obtained semi-finished product be surface-treated：It is dipped in diphenylmethyl
Alkane diisocyanate（Abbreviation MDI, BASF M20S is used in the present embodiment）Pressed as curing agent and ethyl acetate as solvent
10-30：It is standby after progress Physical penetration in the solution that 70-90 part by weight is made into；
（4）Manufacture third layer：By product design specification (PDS), warp and weft are woven to the third layer of tubulose, third layer is thick
1.5-5.0mm is spent, wherein warp and weft are using one or two kinds of combination in terylene, nylon, aramid fiber；
（5）Bonding between first layer and third layer：By step（3）It is middle be surface-treated after with adhesive layer
First layer is drawn into tubulose third layer, and the steam for being passed through that pressure is 0.10-0.35MPa is fixed at both ends, after 4-10 minutes, arranges steam
Blowing air pressurize is cooled to the temperature of requirement；
（6）Turn over band：Make step（5）Product internal layer become outer layer；
（7）Bonding between the second layer and third layer：By step（3）It is middle be surface-treated after with adhesive layer
The second layer leads introduction step（6）In obtained product, the steam for being passed through that pressure is 0.10-0.35MPa is fixed at both ends, in flexible pipe table
After face temperature reaches 120 °C, flexible pipe is stretched by hauling machine, the elongation percentage of stretching is row's steaming after 5%, 4-10 minutes
Vapour, blowing air pressurize, it is cooled to the temperature of requirement.
Embodiment 3：
The present embodiment and the difference of embodiment 1 are：The present embodiment is additionally included in step（6）Surface roll is carried out afterwards
The step of hole.
Embodiment 4：
The present embodiment and the difference of embodiment 1 are：Third layer in the present embodiment is fine using cotton fiber, fiber crops
The manufacture of the natural fibers such as dimension, wool fiber.
Embodiment 5：
The present embodiment and the difference of embodiment 1 are：The manufacture method of the low elongation multi-layer flexible pipe of the present embodiment
For：When leading to steam vulcanization (cure) between first layer and third layer, after hose surface temperature reaches 125 °C, flexible pipe is stretched,
The elongation percentage of stretching is 3%.
Embodiment 6：
The present embodiment and the difference of embodiment 1 are：The manufacture method of the low elongation multi-layer flexible pipe of the present embodiment
For：When leading to steam vulcanization (cure) between first layer and third layer, after hose surface temperature reaches 126 °C, flexible pipe is stretched,
The elongation percentage of stretching is 1%.
Embodiment 7：
The present embodiment and the difference of embodiment 1 are：The manufacture method of the low elongation multi-layer flexible pipe of the present embodiment
For：When leading to steam vulcanization (cure) between first layer and third layer, after hose surface temperature reaches 125 °C, flexible pipe is stretched,
The elongation percentage of stretching is 5%.
Embodiment 8：
The present embodiment and the difference of embodiment 1 are：The manufacture method of the low elongation multi-layer flexible pipe of the present embodiment
For：When leading to steam vulcanization (cure) between first layer and third layer, after hose surface temperature reaches 122 °C, flexible pipe is stretched,
The elongation percentage of stretching is 2%.
It is appreciated that the advantages of described above, can be related to one embodiment or can be related to multiple embodiments.Each reality
Apply example and be not limited to solve the embodiment of any or all in described problem or with any one in the benefit and advantage
Or whole embodiment.
The step of method described herein, in appropriate circumstances in any suitable order, or can be realized simultaneously.
In addition, without departing from here in the case of the spirit and scope of described theme, can be deleted from any one method each
Independent step.The each side of any example as described above can be each with any example in other described examples
Aspect is combined, to form further example, without losing the effect sought.
Description above is only the specific embodiment of the present invention, is not considered as unique embodiment.Clearly for
, all may be without departing substantially from the principle of the invention, structure after understand present invention and principle for one of skill in the art
In the case of, the various modifications and variations in form and details are carried out, but these modifications and variations still will in the right of the present invention
Ask within protection domain.
Claims (4)
1. a kind of manufacture method of low elongation multi-layer flexible pipe, it is characterized in that：This method comprises the following steps：
Step（1）First layer of the extrusion manufacture with adhesive layer：First layer pellet and adhesive pellet are via two extruderses
It is expressed into a co-extruding mould, is coextruded the composite bed come through supercooling, it is to carry adhesive that traction, which is flattened into flat tube,
The first layer of layer, wherein adhesive layer thickness is 0.10-0.35mm, and first layer thickness is 0.5-4.0mm, and first layer uses TPU
Pellet or TPU/PVC alloys, part by weight TPU in described TPU/PVC alloys：PVC=100：0-70；
Step（2）The second layer of the extrusion manufacture with adhesive layer：Second layer pellet and adhesive pellet are via two extruderses
It is expressed into a co-extruding mould, is coextruded the composite bed come through supercooling, it is to carry adhesive that traction, which is flattened into flat tube,
The second layer of layer, wherein adhesive layer thickness is 0.10-0.35mm, and second layer thickness is 0.5-4.0mm, and the second layer uses TPU
Pellet either TPU/PVC alloys or PVC or PVC/ nitrile rubbers, TPU by weight in described TPU/PVC alloys：PVC
=100：0-70；PVC by weight in described PVC/ nitrile rubbers：Nitrile rubber=100：0-70；
Step（3）Respectively by step（1）And step（2）In obtained semi-finished product be surface-treated：It is dipped in diphenylmethyl
Alkane diisocyanate presses 10-30 as curing agent and ethyl acetate as solvent：Enter in the solution that 70-90 part by weight is made into
It is standby after row Physical penetration；
Step（4）Manufacture third layer：By product design specification (PDS), warp and weft are woven to the third layer of tubulose, third layer is thick
1.5-5.0mm is spent, wherein warp and weft are using one or two kinds of combination in terylene, nylon, aramid fiber；
Step（5）Bonding between first layer and third layer：By step（3）It is middle be surface-treated after with adhesive layer
First layer is drawn into tubulose third layer, and the steam for being passed through that pressure is 0.10-0.35MPa is fixed at both ends, is reached in hose surface temperature
To after 120 °C, flexible pipe is stretched by hauling machine, the elongation percentage of stretching is row's steam blowing air guarantor after 5%, 4-10 minutes
Pressure is cooled to the temperature of requirement；
Step（6）Turn over band：Make step（5）Product internal layer become outer layer；
Step（7）Bonding between the second layer and third layer：By step（3）It is middle be surface-treated after with adhesive layer
The second layer leads introduction step（6）In obtained product, the steam for being passed through that pressure is 0.10-0.35MPa, 4-10 minutes are fixed in both ends
Afterwards, row's steam, blowing air pressurize, it is cooled to the temperature of requirement.
2. the low elongation multi-layer flexible pipe obtained by a kind of method using claim 1, it is characterized in that：Described multi-layer flexible pipe
Elongation percentage be not more than 1%.
3. a kind of manufacture method of low elongation multi-layer flexible pipe, it is characterized in that：This method comprises the following steps：
Manufacture first layer, the second layer and the third layer of flexible pipe；
First layer is introduced in third layer, first layer and third layer are vulcanized；
The second layer is introduced in cured first layer and third layer；
The second layer, first layer and third layer are vulcanized, stretched along the direction for being roughly parallel to its length.
4. the manufacture method of low elongation multi-layer flexible pipe according to claim 3, it is characterized in that：Multi-layer flexible pipe institute after stretching
Increased length is 1% to 5% relative to the ratio of having an unstretched length.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416798.8A CN104385647B (en) | 2014-08-22 | 2014-08-22 | Low elongation multi-layer flexible pipe and its manufacture method |
| PCT/CN2014/086910 WO2016026192A1 (en) | 2014-08-22 | 2014-09-19 | Reduced-streatchability multilayer tube and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416798.8A CN104385647B (en) | 2014-08-22 | 2014-08-22 | Low elongation multi-layer flexible pipe and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104385647A CN104385647A (en) | 2015-03-04 |
| CN104385647B true CN104385647B (en) | 2017-12-15 |
Family
ID=52603645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410416798.8A Active CN104385647B (en) | 2014-08-22 | 2014-08-22 | Low elongation multi-layer flexible pipe and its manufacture method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104385647B (en) |
| WO (1) | WO2016026192A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287917A (en) * | 2000-10-23 | 2001-03-21 | 甘国工 | Tensile orientation high-strength composite plastic tube |
| EP1684967B1 (en) * | 2003-11-07 | 2010-12-29 | Insituform Holdings (UK) Limited | Longitudinally reinforced cured in place liner |
| CN102729501A (en) * | 2012-06-28 | 2012-10-17 | 安徽都邦电器有限公司 | Production method for silicon rubber reinforced hose |
| CN103612376A (en) * | 2013-10-18 | 2014-03-05 | 五行材料科技（江苏）有限公司 | Fracturing liquid conveying flexible pipe for exploiting shale oil gas, manufacturing method thereof and co-extrusion mold |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08187796A (en) * | 1995-01-11 | 1996-07-23 | Yokohama Rubber Co Ltd:The | Rubber hose and production thereof |
| CN1249369C (en) * | 2000-06-12 | 2006-04-05 | Bhp比尔利顿石油私人有限公司 | Improvements relating to hose |
| DE10160060A1 (en) * | 2001-12-06 | 2003-06-18 | Festo Ag & Co | Plastic hose, especially pneumatic hose |
| JP5079241B2 (en) * | 2006-02-17 | 2012-11-21 | 三井化学株式会社 | Manufacturing method of hollow molded body, manufacturing method of laminated hollow molded body, manufacturing method of reinforced hollow molded body, and manufacturing method of reinforced laminated hollow molded body |
| CN100498033C (en) * | 2006-03-28 | 2009-06-10 | 东海橡胶工业株式会社 | Resin composite fuel hose |
| US8383220B2 (en) * | 2008-02-05 | 2013-02-26 | Denki Kagaku Kogyo Kabushiki Kaisha | Acrylic rubber |
| WO2014070040A1 (en) * | 2012-11-01 | 2014-05-08 | Alyavdin Dmitry Vyacheslavovich | The multilayered intellectual heat expand sleeve of thermoplastic polymer |
| CN203600577U (en) * | 2013-12-10 | 2014-05-21 | 五行材料科技（江苏）有限公司 | Co-extrusion device for fracturing fluid conveying hose production |
| CN103612377B (en) * | 2013-12-10 | 2015-03-04 | 五行材料科技（江苏）有限公司 | Fracturing fluid conveying hose and manufacturing method thereof as well as co-extrusion mould |
-
2014
- 2014-08-22 CN CN201410416798.8A patent/CN104385647B/en active Active
- 2014-09-19 WO PCT/CN2014/086910 patent/WO2016026192A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1287917A (en) * | 2000-10-23 | 2001-03-21 | 甘国工 | Tensile orientation high-strength composite plastic tube |
| EP1684967B1 (en) * | 2003-11-07 | 2010-12-29 | Insituform Holdings (UK) Limited | Longitudinally reinforced cured in place liner |
| CN102729501A (en) * | 2012-06-28 | 2012-10-17 | 安徽都邦电器有限公司 | Production method for silicon rubber reinforced hose |
| CN103612376A (en) * | 2013-10-18 | 2014-03-05 | 五行材料科技（江苏）有限公司 | Fracturing liquid conveying flexible pipe for exploiting shale oil gas, manufacturing method thereof and co-extrusion mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104385647A (en) | 2015-03-04 |
| WO2016026192A1 (en) | 2016-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10240697B2 (en) | Fracturing liquid delivery hose for recovery of shale oil and gas, and manufacturing method thereof | |
| US10808463B2 (en) | Fracturing liquid delivery hose for recovery of shale oil and gas, and manufacturing method and co-extrusion mold thereof | |
| CN103998908B (en) | Method for measuring stable-state tension of power transmission belt | |
| WO2017020432A1 (en) | Flexible pipe and manufacturing method therefor | |
| CN106113810B (en) | A kind of preparation technology of flexible butyronitrile two-sided adhesive fire-fighting | |
| CN101954172A (en) | Inflatable sports ball structure and preparation method thereof | |
| CN101008461A (en) | Water tape and manufacturing method thereof | |
| CN203948810U (en) | Flexible compound insulation pipe | |
| US20090114497A1 (en) | Inflatable Tube For Coupling Component And Method For Making An Inflatable Tube | |
| CN104385647B (en) | Low elongation multi-layer flexible pipe and its manufacture method | |
| CN101780720B (en) | Method for producing EPDM fire hose | |
| RU2650139C1 (en) | Pipe made of synthetic material and method for manufacture thereof | |
| CN106313644A (en) | Co-extrusion double-layer composite hose and processing method thereof | |
| CN109721020A (en) | A kind of fiber reinforcement hose and its manufacturing method | |
| WO2016026193A1 (en) | Manufacturing method for multilayer tube | |
| CN105736855A (en) | CNG conveying hose for gas filling/gas discharge pillar of gas station | |
| JP2012131218A (en) | Lining material | |
| JP4976017B2 (en) | High pressure hose | |
| KR101205870B1 (en) | Highpresser Gas Hose | |
| KR101410609B1 (en) | High pressur Gas Hose | |
| CN204300540U (en) | Gas station aerating/lose heart post CNG delivery hose | |
| CN202158288U (en) | High pressure large length flatly coiled liquid conveying hose pipe | |
| DE202013104869U1 (en) | Multilayered, intelligent, thermally expandable thermoplastic polymer hose | |
| CN109058613A (en) | A kind of high adhesion force lightweight co-extrusion robber cement band and manufacturing method | |
| CN204299839U (en) | Long-life mortar ectrusion press trunnion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 225500 No. 986 Factory Road, Jiangyan Economic Development Zone, Taizhou, Jiangsu Applicant after: 5ELEM HI-TECH Corp. Address before: 225500 No. 986 Factory Road, Jiangyan Economic Development Zone, Taizhou, Jiangsu Applicant before: 5ELEM MATERIAL SCIENTIFIC (JIANGSU) Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Low elongation multilayer hose and its manufacturing method Effective date of registration: 20210401 Granted publication date: 20171215 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: 5ELEM HI-TECH Corp. Registration number: Y2021980002332 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20171215 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: 5ELEM HI-TECH Corp. Registration number: Y2021980002332 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Low elongation multi-layer hose and its manufacturing method Granted publication date: 20171215 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: 5ELEM HI-TECH Corp. Registration number: Y2024320000056 |