CN105866914A - Method for improving binding power of submarine cable insulating layer and copper tube - Google Patents
Method for improving binding power of submarine cable insulating layer and copper tube Download PDFInfo
- Publication number
- CN105866914A CN105866914A CN201610378839.8A CN201610378839A CN105866914A CN 105866914 A CN105866914 A CN 105866914A CN 201610378839 A CN201610378839 A CN 201610378839A CN 105866914 A CN105866914 A CN 105866914A
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- insulating barrier
- copper tube
- cohesive force
- layer
- 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.)
- Granted
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 63
- 239000010949 copper Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 43
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 claims abstract description 26
- 238000001125 extrusion Methods 0.000 claims abstract description 20
- 229920000573 polyethylene Polymers 0.000 claims abstract description 18
- 239000004698 Polyethylene Substances 0.000 claims abstract description 16
- -1 polyethylene Polymers 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 3
- 230000004888 barrier function Effects 0.000 claims description 32
- 230000001737 promoting effect Effects 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 3
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract 1
- 235000019441 ethanol Nutrition 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000013307 optical fiber Substances 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/506—Underwater installation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/508—Fixation devices in ducts for drawing cables
Abstract
The invention discloses a method for improving binding power of a submarine cable insulating layer and a copper tube. The method includes the steps that ethylene acrylic acid copolymer and polyethylene are mixed to be uniform, and a binding material is obtained; a polyethylene material serves as an insulating layer material; a drying machine is utilized to dry the binding material and the insulating material, and then a single screw extruder is preheated to 160-290 DEG C; the copper tube is subjected to paying off, the copper tube is cleaned with ethyl alcohol in the first place before entering an extruder die head and preheated with a preheater, and the surface temperature of the preheated copper tube is 60-200 DEG C; a double-layer co-extrusion mode is adopted for the single screw extruder, and a binding layer and an insulating layer are arranged on the surface of the copper tube in an extrusion molding mode; gradually cooling is conducted with a cold water groove. The method is simple, operation is convenient to conduct, the binding power between the copper tube and the insulating layer is greatly improved, and the problem that the insulating layer falls off the copper tube in the laying process of a submarine cable is solved.
Description
Technical field
The present invention relates to seabed cable field, be specifically related to a kind of lifting sea cable insulating barrier and copper pipe cohesive force
Method.
Background technology
Submarine optical fiber cable is with advantages such as the transmission quality of its Large Copacity, high reliability and excellence, in the communications field,
Especially international communication plays an important role.
Because submarine optical fiber cable is in laid processes, sea cable deadweight and pulling force effect can make submarine optical fiber cable inner. layers
Produce Relative sliding, when internal PE restrictive coating is excessive with copper pipe layer sliding, then can cause its PE restrictive coating
Pulled, thus cause sea cable to damage.Therefore when submarine optical fiber cable produces, to its PE restrictive coating and copper pipe
Between cohesive force have higher requirement.
In order to solve the problems referred to above, it is now desired to the method promoting sea cable insulating barrier and copper pipe cohesive force.
Summary of the invention
It is an object of the invention to the problem above overcoming prior art to exist, it is provided that a kind of lifting sea cable
Insulating barrier and the method for copper pipe cohesive force, the technique that present invention improves over original copper pipe direct plastic extruding insulated layer
Method, greatly improves the cohesive force between sea cable insulating barrier and copper pipe, it is ensured that sea cable was laying
Cheng Zhong, copper pipe with insulating barrier bonding closely, enhances the performance of sea cable.
The ethylene acrylic acid co polymer (EAA) that the present invention uses is that one has thermoplasticity and high caking property
Polymer, when MI is identical, along with the increase of AA content, the adhesive property of EAA material can more preferably,
It can be with the material such as metal, glass, cellulose bonding.
By the method for the present invention, after preheating, there is the most active electronics, vivaciously electricity in metal surface
Son can the most mutually adsorb with the electrophilic group (AA composition) in EAA material, thus forms ratio
Stronger cohesive force.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, the present invention is real by the following technical programs
Existing:
A kind of method promoting sea cable insulating barrier and copper pipe cohesive force, comprises the following steps:
Step one, ethylene acrylic acid co polymer is mixed homogeneously with polyethylene, obtain binding material, wherein,
It is 10-100% that described ethylene acrylic acid co polymer accounts for binding material mass percent, and described polyethylene accounts for bonding
Quality of materials percentage ratio is 0-90%；
Step 2, preparation polythene material are as insulating layer material；
Insulant prepared by step 3, binding material step one prepared with materal drier and step 2 dries
Dry, then single screw extrusion machine is previously heated to 160-290 DEG C；
Step 4, copper pipe unwrapping wire, before copper pipe enters extruder die, be first carried out with ethanol,
And using preheater to preheat copper pipe, after preheating, copper pipe surface temperature is 60-200 DEG C；
Step 5, single screw extrusion machine use double-layer coextrusion pattern, glue copper pipe surface extrusion molding one layer respectively
Knot layer and insulating barrier；
Step 6, progressively cooled down by cold rinse bank.
Further, in step one, melt index MI≤16 of described ethylene acrylic acid co polymer, AA's
Content >=6%.
Further, in step one, described polyethylene is linear low density polyethylene.
Further, in step 3, in materal drier, the time drying binding material and insulant is
2-4h。
Further, in step 5, the thickness of extrusion molding tack coat is 0.05-0.5mm.
Further, in step 5, the thickness of plastic extruding insulated layer is 0.5-8mm.
The invention has the beneficial effects as follows:
The method promoting sea cable insulating barrier and copper pipe cohesive force of the present invention, with simple copper pipe surface extrusion molding
Insulation is compared, and extrudes one layer of tack coat between copper pipe and insulating barrier, and this tack coat plays bonding bridge and makees
With, all can highly bond between tack coat and ambroin and copper pipe, thus enhance copper pipe and insulating barrier
Between cohesive force, it is ensured that sea cable is in laid processes, and copper pipe and insulating barrier bonding closely, enhances
The performance of sea cable.
The ethylene acrylic acid co polymer (EAA) that the present invention uses is that one has thermoplasticity and high caking property
Polymer, when MI is identical, along with the increase of AA content, the adhesive property of EAA material can more preferably,
It can be with the material such as metal, glass, cellulose bonding.
By the method for the present invention, after preheating, there is the most active electronics, vivaciously electricity in metal surface
Son can the most mutually adsorb with the electrophilic group (AA composition) in EAA material, thus forms ratio
Stronger cohesive force.
The method of the present invention is simple, easy to operate, the cohesive force being greatly improved between copper pipe and insulating barrier,
Avoid sea cable during laying, the problem that insulating barrier and copper pipe come off occurs.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the skill of the present invention
Art means, and can being practiced according to the content of description, below with presently preferred embodiments of the present invention and join
Conjunction accompanying drawing describes in detail.The detailed description of the invention of the present invention is shown in detail in by following example and accompanying drawing thereof.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in embodiment of the present invention technology, below will be to embodiment skill
In art description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below
It is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying creation
Property work on the premise of, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1
With reference to shown in Fig. 1, embodiment 1 discloses and a kind of promotes sea cable insulating barrier and copper pipe cohesive force
Method, the method has following steps:
Step one, ethylene acrylic acid co polymer is mixed homogeneously with polyethylene, obtain binding material, wherein,
It is 10% that above-mentioned ethylene acrylic acid co polymer accounts for binding material mass percent, and above-mentioned polyethylene accounts for binding material
Mass percent is 90%；
Step 2, preparation polythene material are as insulating layer material；
Insulant prepared by step 3, binding material step one prepared with materal drier and step 2 dries
Dry, dry 2h, then single screw extrusion machine is previously heated to 160 DEG C；
Step 4, copper pipe unwrapping wire, before copper pipe enters extruder die, be first carried out with ethanol,
And using preheater to preheat copper pipe, after preheating, copper pipe surface temperature is 60 DEG C；
Step 5, single screw extrusion machine use double-layer coextrusion pattern, glue copper pipe surface extrusion molding one layer respectively
Knot layer and insulating barrier, the thickness of tack coat is 0.05mm, and the thickness of insulating barrier is 0.5mm；
Step 6, progressively cooled down by cold rinse bank.
Embodiment 2
Embodiment 2 discloses a kind of method promoting sea cable insulating barrier and copper pipe cohesive force, mainly includes
Following steps:
Step one, ethylene acrylic acid co polymer is mixed homogeneously with polyethylene, obtain binding material, wherein,
It is 55% that above-mentioned ethylene acrylic acid co polymer accounts for binding material mass percent, and above-mentioned polyethylene accounts for binding material
Mass percent is 45%；
Step 2, preparation polythene material are as insulating layer material；
Insulant prepared by step 3, binding material step one prepared with materal drier and step 2 dries
Dry, dry 3h, then single screw extrusion machine is previously heated to 225 DEG C；
Step 4, copper pipe unwrapping wire, before copper pipe enters extruder die, be first carried out with ethanol,
And using preheater to preheat copper pipe, after preheating, copper pipe surface temperature is 130 DEG C；
Step 5, single screw extrusion machine use double-layer coextrusion pattern, glue copper pipe surface extrusion molding one layer respectively
Knot layer and insulating barrier, the thickness of tack coat is 0.25mm, and the thickness of insulating barrier is 3.5mm；
Step 6, progressively cooled down by cold rinse bank.
Embodiment 3
Embodiment 3 discloses a kind of method promoting sea cable insulating barrier and copper pipe cohesive force, mainly includes
Following steps:
Step one, using ethylene acrylic acid co polymer (EAA) that mass percent is 100% as binding material；
Step 2, preparation polythene material are as insulating layer material；
Insulant prepared by step 3, binding material step one prepared with materal drier and step 2 dries
Dry, dry 4h, then single screw extrusion machine is previously heated to 290 DEG C；
Step 4, copper pipe unwrapping wire, before copper pipe enters extruder die, be first carried out with ethanol,
And using preheater to preheat copper pipe, after preheating, copper pipe surface temperature is 200 DEG C；
Step 5, single screw extrusion machine use double-layer coextrusion pattern, glue copper pipe surface extrusion molding one layer respectively
Knot layer and insulating barrier, the thickness of tack coat is 0.5mm, and the thickness of insulating barrier is 8mm；
Step 6, progressively cooled down by cold rinse bank.
In above-described embodiment 1-3, in step one, melt index MI of above-mentioned ethylene acrylic acid co polymer≤
Content >=6% of 16, AA；Above-mentioned polyethylene is linear low density polyethylene.
In above-described embodiment 1-3 use ethylene acrylic acid co polymer (EAA) be one have thermoplasticity and
The polymer of high caking property, when MI is identical, along with the increase of AA content, the caking property of EAA material
Can more preferably, it can be with the material bonding such as metal, glass, cellulose.
In above-mentioned steps four preheating copper pipe, after preheating, there is the most active electricity in metal surface
Son, active electron can the most mutually adsorb with the electrophilic group (AA composition) in EAA material,
Thus form stronger cohesive force.
Above-mentioned method is simple, easy to operate, the cohesive force being greatly improved between copper pipe and insulating barrier,
Avoid sea cable during laying, the problem that insulating barrier and copper pipe come off occurs.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (6)
1. the method promoting sea cable insulating barrier and copper pipe cohesive force, it is characterised in that include following step
Rapid:
Step one, ethylene acrylic acid co polymer is mixed homogeneously with polyethylene, obtain binding material, wherein,
It is 10-100% that described ethylene acrylic acid co polymer accounts for binding material mass percent, and described polyethylene accounts for bonding
Quality of materials percentage ratio is 0-90%；
Step 2, preparation polythene material are as insulating layer material；
Insulant prepared by step 3, binding material step one prepared with materal drier and step 2 dries
Dry, then single screw extrusion machine is previously heated to 160-290 DEG C；
Step 4, copper pipe unwrapping wire, before copper pipe enters extruder die, be first carried out with ethanol,
And using preheater to preheat copper pipe, after preheating, copper pipe surface temperature is 60-200 DEG C；
Step 5, single screw extrusion machine use double-layer coextrusion pattern, glue copper pipe surface extrusion molding one layer respectively
Knot layer and insulating barrier；
Step 6, progressively cooled down by cold rinse bank.
The method promoting sea cable insulating barrier and copper pipe cohesive force the most according to claim 1, its feature
It is, in step one, melt index MI≤16 of described ethylene acrylic acid co polymer, content >=6% of AA.
The method promoting sea cable insulating barrier and copper pipe cohesive force the most according to claim 1 and 2, its
Being characterised by, in step one, described polyethylene is linear low density polyethylene.
The method promoting sea cable insulating barrier and copper pipe cohesive force the most according to claim 1, its feature
Being, in step 3, in materal drier, the time drying binding material and insulant is 2-4h.
The method promoting sea cable insulating barrier and copper pipe cohesive force the most according to claim 1, its feature
Being, in step 5, the thickness of extrusion molding tack coat is 0.05-0.5mm.
The method promoting sea cable insulating barrier and copper pipe cohesive force the most according to claim 1 or 5, its
Being characterised by, in step 5, the thickness of plastic extruding insulated layer is 0.5-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610378839.8A CN105866914B (en) | 2016-05-31 | 2016-05-31 | The method for promoting sea cable insulating layer and copper pipe cohesive force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610378839.8A CN105866914B (en) | 2016-05-31 | 2016-05-31 | The method for promoting sea cable insulating layer and copper pipe cohesive force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105866914A true CN105866914A (en) | 2016-08-17 |
| CN105866914B CN105866914B (en) | 2018-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610378839.8A Active CN105866914B (en) | 2016-05-31 | 2016-05-31 | The method for promoting sea cable insulating layer and copper pipe cohesive force |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525763A (en) * | 2017-08-22 | 2017-12-29 | 中国人民解放军海军工程大学 | Extra large cable bonding force detection method |
| CN111443443A (en) * | 2020-03-18 | 2020-07-24 | 江苏亨通海洋光网系统有限公司 | Multi-dimensional water-resistant and hydrogen-resistant submarine optical cable and forming process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0488819A (en) * | 1990-07-31 | 1992-03-23 | Hitachi Cable Ltd | Laying method of submarine cable |
| CN101241213A (en) * | 2008-02-13 | 2008-08-13 | 中天科技海缆有限公司 | Deep sea optic cable and its manufacture method |
| CN201156097Y (en) * | 2008-02-13 | 2008-11-26 | 中天科技海缆有限公司 | Deep sea optical fiber |
| CN105469852A (en) * | 2016-01-13 | 2016-04-06 | 王干 | Composite graphene optical fiber cable and preparation method thereof |
-
2016
- 2016-05-31 CN CN201610378839.8A patent/CN105866914B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0488819A (en) * | 1990-07-31 | 1992-03-23 | Hitachi Cable Ltd | Laying method of submarine cable |
| CN101241213A (en) * | 2008-02-13 | 2008-08-13 | 中天科技海缆有限公司 | Deep sea optic cable and its manufacture method |
| CN201156097Y (en) * | 2008-02-13 | 2008-11-26 | 中天科技海缆有限公司 | Deep sea optical fiber |
| CN105469852A (en) * | 2016-01-13 | 2016-04-06 | 王干 | Composite graphene optical fiber cable and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525763A (en) * | 2017-08-22 | 2017-12-29 | 中国人民解放军海军工程大学 | Extra large cable bonding force detection method |
| CN111443443A (en) * | 2020-03-18 | 2020-07-24 | 江苏亨通海洋光网系统有限公司 | Multi-dimensional water-resistant and hydrogen-resistant submarine optical cable and forming process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105866914B (en) | 2018-11-20 |
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Address after: 215500 Building 2, No.8, Tongda Road, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Jiangsu Hengtong Huahai Technology Co.,Ltd. Country or region after: China Address before: 215500 Building 2, No.8, Tongda Road, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: JIANGSU HENGTONG MARINE CABLE SYSTEMS Co.,Ltd. Country or region before: China |