CN102162888A - Reinforced core of aramid fiber-reinforced optical cable and manufacture method thereof - Google Patents
Reinforced core of aramid fiber-reinforced optical cable and manufacture method thereof Download PDFInfo
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- CN102162888A CN102162888A CN 201110117422 CN201110117422A CN102162888A CN 102162888 A CN102162888 A CN 102162888A CN 201110117422 CN201110117422 CN 201110117422 CN 201110117422 A CN201110117422 A CN 201110117422A CN 102162888 A CN102162888 A CN 102162888A
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Abstract
The invention discloses a reinforced core of an aramid fiber-reinforced optical cable and a manufacture method thereof. The reinforced core of the aramid fiber-reinforced optical cable comprises a rod-shaped base and a high-temperature resistant layer plastic-covering the surface of the rod-shaped base, wherein the rod-shaped base includes aramid fiber bundles and an adhesive applied on the surface of the aramid fiber bundles; and the adhesive contains a 102 plastic adhesive and a moderate-temperature-curing high-temperature resistant adhesive with the weight ratio of 10:0.3. The manufacture method comprises the following steps: preheating the aramid fiber bundles; uniformly applying the adhesive on the surface of the preheated aramid fiber bundles; extruding and stretching the aramid fiber bundles through a die hole of a forming die; curing the extruded aramid fiber bundles by drying through a heating tank to obtain the rod-shaped base; thermally plastic-covering the high-temperature resistant layer on the surface of the rod-shaped base; cooling in a hot water tank and a cold water tank; blow-drying the rod-shaped base by a high-pressure fan; and coiling the product on a coiling machine. The reinforced core of the optical cable manufactured by the method has the advantages of high strength, high resistance to stretching and high temperature, and is easy to operate.
Description
[technical field]
The present invention relates to communications optical cable, relate in particular to the manufacture method that aramid fiber strengthens optical cable strengthening core.
[background technology]
1. at present along with social high speed development; people are more and more higher to the requirement of network speed; Fiber to the home; very urgent; moreover country just pushes forward the development of " unification of three nets " comprehensively; therefore inside cable is being popularized and is being used, and so just need take certain measure that inside cable is protected and strengthens quick improvement to inside cable, unimpeded fast with the assurance network.
2. the inside cable product generally includes three parts at present; A. optical fiber; B. optical fiber both sides strengthening core; C. cable body protective cover material.Strengthening core is selected two kinds of a. glass fibre strengthening cores usually for use in addition; B. aramid fiber strengthening core.The glass fibre strengthening core is because bending radius is big, frangibility, so be not expected.The aramid fiber strengthening core has two kinds of manufacture methods at present: a kind of is to adopt epoxy resin thermosetting technology; Another is CN201010209609.1 as application number; name is called the patented claim of " a kind of optical cable strengthening core and manufacture method thereof "; this strengthening core is reinforcing material with the aramid fiber; at the curing glue that is coated with one deck KG580 on the aramid fiber bundle plastic again PBT after infrared ray cured; because of the aramid fiber silk is a kind of very special material; it is not affine with a lot of curing glue; therefore this strengthening core is behind stranding; because system cable secondary is heated 170 ℃; after being heated, the curing glue of aramid fiber bundle external application and coating PBT all adsorbed by stranding material low smoke and zero halogen; cause the aramid fiber bundle to separate with the cable body; thereby the aramid fiber bundle is easy to extract out from the cable body, and such strengthening core does not have the effect of protection to optical cable.In view of the foregoing, need the structure and the manufacturing installation of aramid fiber strengthening core be improved at present.
[summary of the invention]
One of technical matters to be solved by this invention is to provide a kind of and is widely used in the inside cable structure, and tension is heat-resisting, and in fiber optic cable production high temperature resistance, easy-operating optical cable strengthening core.
Two of technical matters to be solved by this invention is to provide a kind of manufacture method of above-mentioned optical cable strengthening core.
The present invention is what one of to solve the problems of the technologies described above by the following technical programs: a kind of aramid fiber strengthens optical cable strengthening core, comprise shaft-like matrix and plastic high-temperature-resistant layer at this shaft-like matrix surface, and described shaft-like matrix comprises the aramid fiber tow and is coated in the tackifier on this aramid fiber tow surface that the proportioning of described tackifier is: the 102 plastic cement sticks of every 10g add the high temperature resistant hardening agent of intermediate temperature setting of 0.3g.
The diameter range of described shaft-like matrix is 0.28mm----0.8mm.
The diameter of described shaft-like matrix is 0.4mm.
The material of described high-temperature-resistant layer is PBT, and the thickness range of this high-temperature-resistant layer is 0.1mm----1.2mm.
The present invention be solve the problems of the technologies described above by the following technical programs two: a kind of above-mentioned aramid fiber strengthens the manufacture method of optical cable strengthening core, comprises the steps:
A. with the aramid fiber tow through the heating tank preheating;
B. in air pressure glue box, the aramid fiber tow surface that preheating is good is adhesive coating evenly;
C. will be coated with the die hole extrusion stretching of the aramid fiber tow of tackifier among the described step b, and be shaft-like matrix through the heating tank baking and curing through mould;
D. in the high temperature plastic wrapping machine, with the plastic high-temperature-resistant layer of above-mentioned shaft-like matrix surface heat;
E. after the above-mentioned shaft-like matrix that is coated with high-temperature-resistant layer being passed through the cooling of hot water storgae and cold rinse bank successively, after drying up, high pressure positive blower on admission machine, carries out the finished product rolling again.
Among the described step a, the temperature in the heating tank is 70 ℃.
Among the described step b, the air pressure in the air pressure glue box is 2 atmospheric pressure.
Among the described step c, the temperature in the described heating tank is 270 ℃, described heating tank length be 6m, the aramid fiber tow is cured as shaft-like matrix after three heating tanks oven dry behind the die hole extrusion stretching of mould.
Among the described step e, water temperature is 50 ℃ in the described hot water storgae, and water temperature is 25 ℃ in the described cold rinse bank
The diameter range of described shaft-like matrix is 0.28mm----0.8mm, and the material of described high-temperature-resistant layer is PBT, and the thickness range of this high-temperature-resistant layer is 0.1mm----1.2mm.
Advantage of the present invention is: the optical cable strengthening core by this production technology manufacturing has high strength, anti-pull, high temperature resistant, easy-operating characteristics.The every performance index of proof all are better than the aramid fiber strengthening core of other kinds after system cable producer uses, thereby it is the optimal selection of making optical cable.
[description of drawings]
Fig. 1 strengthens the manufacturing equipment structural drawing of optical cable strengthening core for aramid fiber.
[embodiment]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings, so that those skilled in the art can better understand the present invention and can be implemented.
The invention provides a kind of aramid fiber and strengthen optical cable strengthening core, it comprises shaft-like matrix and plastic high-temperature-resistant layer at this shaft-like matrix surface, and described shaft-like matrix comprises aramid fiber tow and the tackifier that is coated in this aramid fiber tow surface.The applicant is through tens inferior experiments up to a hundred, the curing rate of the tackifier of the following prescription of discovery employing is fast, solidification effect is best, the proportioning of described tackifier is: the 102 plastic cement sticks of every 10g add the high temperature resistant hardening agent of intermediate temperature setting of 0.3g, and described 102 plastic cement sticks and the high temperature resistant hardening agent of intermediate temperature setting are all bought on the market from existing.
In above-mentioned optical cable strengthening core, the diameter range of described shaft-like matrix is 0.28mm----0.8mm, and when the diameter that experimental results show that described shaft-like matrix was 0.4mm, the anti-pull ability of optical cable strengthening core was the strongest.
In above-mentioned optical cable strengthening core, described resistant to elevated temperatures material is PBT (polybutylene terephthalate), and this high-temperature-resistant layer thickness range is 0.1mm----1.2mm.
See also Fig. 1, the manufacturing equipment that described aramid fiber strengthens optical cable strengthening core comprises 1,70 ℃ of heating tanks 2 of tension stringing machine, air pressure glue box 3,4,270 ℃ of heating tanks 5 of mould, 7,25 ℃ of cold rinse banks 8 of 6,50 ℃ of hot water storgaes of high temperature plastic wrapping machine, high pressure positive blower 9, and admission machine 10.1,70 ℃ of heating tanks 2 of described tension stringing machine, 3,270 ℃ of heating tanks 5 of air pressure glue box, 7,25 ℃ of cold rinse banks 8 of 6,50 ℃ of hot water storgaes of high temperature plastic wrapping machine, high pressure positive blower 9, and admission machine 10 is placed successively.Mould 4 is fixed on the endpiece of air pressure glue box 3.
The manufacture method that described aramid fiber strengthens optical cable strengthening core comprises the following steps:
A. with the aramid fiber tow through 70 ℃ of heating tank 2 preheatings, existing optical cable manufacturing process does not all have this step of preheating, increased preheating step after, the curing glue-line of follow-up coating is easier fits with the aramid fiber tow, improves solidification effect greatly;
B. in air pressure glue box 3, the aramid fiber tow surface that preheating is good is adhesive coating evenly, the proportioning of described tackifier is: the 102 plastic cement sticks of every 10g add the high temperature resistant hardening agent of intermediate temperature setting of 0.3g, described 102 plastic cement sticks and the high temperature resistant hardening agent of intermediate temperature setting are all bought on the market from existing, and the air pressure in the air pressure glue box 3 is 2 atmospheric pressure;
C. the die hole extrusion stretching of the aramid fiber tow of 102 plastic cement sticks through mould 4 will be coated with among the described step b, and three times is shaft-like matrix through 270 ℃ of long heating tank 5 baking and curing of 6m;
D. in high temperature plastic wrapping machine 6, with the plastic high-temperature-resistant layer of above-mentioned shaft-like matrix surface heat;
E. with the above-mentioned shaft-like matrix that is coated with high-temperature-resistant layer successively through after 50 ℃ of hot water storgaes 7 and 25 ℃ of cold rinse banks 8 coolings, after high pressure positive blower 9 dries up, can on admission machine 10, carry out the finished product rolling again.
Though more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than be used for qualification to scope of the present invention; those of ordinary skill in the art are in the modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (10)
1. an aramid fiber strengthens optical cable strengthening core, it is characterized in that: comprise shaft-like matrix and plastic high-temperature-resistant layer at this shaft-like matrix surface, and described shaft-like matrix comprises the aramid fiber tow and is coated in the tackifier on this aramid fiber tow surface that the proportioning of described tackifier is: the 102 plastic cement sticks of every 10g add the high temperature resistant hardening agent of intermediate temperature setting of 0.3g.
2. aramid fiber as claimed in claim 1 strengthens optical cable strengthening core, and it is characterized in that: the diameter range of described shaft-like matrix is 0.28mm----0.8mm.
3. aramid fiber as claimed in claim 2 strengthens optical cable strengthening core, and it is characterized in that: the diameter of described shaft-like matrix is 0.4mm.
4. strengthen optical cable strengthening core as each described aramid fiber of claim 1 to 3, it is characterized in that: the material of described high-temperature-resistant layer is PBT, and the thickness range of this high-temperature-resistant layer is 0.1mm----1.2mm.
5. the manufacture method of an aramid fiber enhancing optical cable strengthening core as claimed in claim 1 is characterized in that: comprise the steps:
A. with the aramid fiber tow through the heating tank preheating;
B. in air pressure glue box, the aramid fiber tow surface that preheating is good is adhesive coating evenly;
C. will be coated with the die hole extrusion stretching of the aramid fiber tow of tackifier among the described step b, and be shaft-like matrix through the heating tank baking and curing through mould;
D. in the high temperature plastic wrapping machine, with the plastic high-temperature-resistant layer of above-mentioned shaft-like matrix surface heat;
E. after the above-mentioned shaft-like matrix that is coated with high-temperature-resistant layer being passed through the cooling of hot water storgae and cold rinse bank successively, after drying up, high pressure positive blower on admission machine, carries out the finished product rolling again.
6. an aramid fiber as claimed in claim 5 strengthens the manufacture method of optical cable strengthening core, and it is characterized in that: among the described step a, the temperature in the heating tank is 70 ℃.
7. one kind strengthens the manufacture method of optical cable strengthening cores as claim 5 or 6 described aramid fibers, and it is characterized in that: among the described step b, the air pressure in the air pressure glue box is 2 atmospheric pressure.
8. an aramid fiber as claimed in claim 5 strengthens the manufacture method of optical cable strengthening core, it is characterized in that: among the described step c, temperature in the described heating tank is 270 ℃, described heating tank length be 6m, the aramid fiber tow is cured as shaft-like matrix after three heating tank oven dry behind the die hole extrusion stretching of mould.
9. an aramid fiber as claimed in claim 8 strengthens the manufacture method of optical cable strengthening core, and it is characterized in that: among the described step e, water temperature is 50 ℃ in the described hot water storgae, and water temperature is 25 ℃ in the described cold rinse bank
10. an aramid fiber as claimed in claim 5 strengthens the manufacture method of optical cable strengthening core, it is characterized in that: the diameter range of described shaft-like matrix is 0.28mm----0.8mm, the material of described high-temperature-resistant layer is PBT, and the thickness range of this high-temperature-resistant layer is 0.1mm----1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110117422 CN102162888A (en) | 2011-05-06 | 2011-05-06 | Reinforced core of aramid fiber-reinforced optical cable and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110117422 CN102162888A (en) | 2011-05-06 | 2011-05-06 | Reinforced core of aramid fiber-reinforced optical cable and manufacture method thereof |
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| CN102162888A true CN102162888A (en) | 2011-08-24 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749685A (en) * | 2012-04-20 | 2012-10-24 | 苏州洲通光电科技有限公司 | Equipment for manufacturing superstrength reinforced core |
| CN102839480A (en) * | 2012-10-02 | 2012-12-26 | 上海会博新材料科技有限公司 | Method for improving strength utilization rate of para-aramid fiber in reinforcing optic cable |
| CN103869434A (en) * | 2014-02-27 | 2014-06-18 | 河北四方通信设备有限公司 | Plastic coating technology of sheath for plastic optical fiber |
| CN104325661A (en) * | 2014-08-30 | 2015-02-04 | 海安南京大学高新技术研究院 | Continuous production method of aramid fiber enhanced cable core |
| CN104944802A (en) * | 2015-05-29 | 2015-09-30 | 成都亨通光通信有限公司 | Tight buffered fiber production system |
| WO2018113359A1 (en) * | 2016-12-22 | 2018-06-28 | 苏州振瑞昌材料科技有限公司 | Reinforcing core preparation apparatus |
| CN108335793A (en) * | 2018-04-09 | 2018-07-27 | 中天科技海缆有限公司 | Umbilical cables |
| CN108597652A (en) * | 2018-04-09 | 2018-09-28 | 中天科技海缆有限公司 | Umbilical cables |
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| JP2000199840A (en) * | 1999-01-04 | 2000-07-18 | Ube Nitto Kasei Co Ltd | Aramid fiber reinforced curable resin wire-shaped material, its production and spacer for optical fiber cable consisting of this wire-shaped body as tension member |
| CN1677149A (en) * | 2004-03-29 | 2005-10-05 | 日立电线株式会社 | Optical fiber cable |
| CN101726812A (en) * | 2008-10-10 | 2010-06-09 | 北京慧明讯科技发展有限责任公司 | Coated fiberglass tape for cables and method for preparing same |
| CN101876736A (en) * | 2010-06-24 | 2010-11-03 | 上海国斌化工有限公司 | Reinforced core of optical cable and manufacturing method thereof |
| CN101915970A (en) * | 2010-06-30 | 2010-12-15 | 上海晓宝增强塑料有限公司 | Optical cable, fiber reinforced plastics used thereby and preparation method thereof |
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Patent Citations (5)
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| JP2000199840A (en) * | 1999-01-04 | 2000-07-18 | Ube Nitto Kasei Co Ltd | Aramid fiber reinforced curable resin wire-shaped material, its production and spacer for optical fiber cable consisting of this wire-shaped body as tension member |
| CN1677149A (en) * | 2004-03-29 | 2005-10-05 | 日立电线株式会社 | Optical fiber cable |
| CN101726812A (en) * | 2008-10-10 | 2010-06-09 | 北京慧明讯科技发展有限责任公司 | Coated fiberglass tape for cables and method for preparing same |
| CN101876736A (en) * | 2010-06-24 | 2010-11-03 | 上海国斌化工有限公司 | Reinforced core of optical cable and manufacturing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749685A (en) * | 2012-04-20 | 2012-10-24 | 苏州洲通光电科技有限公司 | Equipment for manufacturing superstrength reinforced core |
| CN102839480A (en) * | 2012-10-02 | 2012-12-26 | 上海会博新材料科技有限公司 | Method for improving strength utilization rate of para-aramid fiber in reinforcing optic cable |
| CN103869434A (en) * | 2014-02-27 | 2014-06-18 | 河北四方通信设备有限公司 | Plastic coating technology of sheath for plastic optical fiber |
| CN104325661A (en) * | 2014-08-30 | 2015-02-04 | 海安南京大学高新技术研究院 | Continuous production method of aramid fiber enhanced cable core |
| CN104944802A (en) * | 2015-05-29 | 2015-09-30 | 成都亨通光通信有限公司 | Tight buffered fiber production system |
| WO2018113359A1 (en) * | 2016-12-22 | 2018-06-28 | 苏州振瑞昌材料科技有限公司 | Reinforcing core preparation apparatus |
| CN108335793A (en) * | 2018-04-09 | 2018-07-27 | 中天科技海缆有限公司 | Umbilical cables |
| CN108597652A (en) * | 2018-04-09 | 2018-09-28 | 中天科技海缆有限公司 | Umbilical cables |
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Application publication date: 20110824 |