CN202305946U - Foaming and filling rope - Google Patents
Foaming and filling rope Download PDFInfo
- Publication number
- CN202305946U CN202305946U CN2011204077220U CN201120407722U CN202305946U CN 202305946 U CN202305946 U CN 202305946U CN 2011204077220 U CN2011204077220 U CN 2011204077220U CN 201120407722 U CN201120407722 U CN 201120407722U CN 202305946 U CN202305946 U CN 202305946U
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- Prior art keywords
- foaming
- polypropylene
- skin
- filling rope
- thickness
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Abstract
The utility model relates to the technical field of cables, and in particular relates to a foaming and filling rope used for an optical cable. The foaming and filling rope comprises foamed filler and a skin, wherein the skin wraps the foamed filler, the foamed filler is a polyethylene foaming body, the skin is a polypropylene layer, and range of thickness dimension of the polypropylene layer is 0.05-0.08mm. The foaming and filling rope used for the optical cable provided by the utility model has the advantages that the thickness of the polypropylene skin can be increased, so as to cause no skin breaking phenomenon, thus the filling rope is not adhered with a moisture resistant layer and cable opening is not influenced; and meanwhile, no water penetration or water penetration of a cross section of the optical cable can be caused. Thickness of polypropylene can be increased, intermiscibility of two materials, polypropylene and PE (polyethylene), is better, no gap is formed between the two materials, and no water penetration can be caused; and however, for PBT (polybutylece terephthalate), a gap can be formed between the PBT and the PE if the thickness is increased, and water penetration is caused on the filling rope.
Description
Technical field
The utility model relates to technical field of cables, relates to a kind of foaming packing gasket that optical cable is used specifically.
Background technology
Optical cable filling rope adopts PP material (polypropylene) to make mostly in the technology now, has part producer to adopt PBT (the PBT plastics are meant that polybutylene terephthalate is one type of plastics that main body constituted) to make skin, and PE (tygon) makes the foaming packing gasket of core.The shortcoming of this kind foaming packing gasket is to cross when thin when the PBT skin, and broken easily skin causes gasket for packing and moisture-proof layer to stick together, and influences and opens cable.When the PBT skin is blocked up, the infiltration situation takes place easily, cause the infiltration of optical cable section.
Like application number is 200920043015.0; The applying date is 2009-06-30; Name is called the utility model patent of " optical cable is used foaming packing gasket "; Its technical scheme is: a kind of optical cable is used foaming packing gasket, and the rope body of gasket for packing is that foam polyethylene perhaps is made up of the sheath of foam polyethylene and outsourcing.Above-mentioned patent document discloses the direct scheme as gasket for packing with PE (tygon); And the scheme that constitutes gasket for packing by the sheath of foam polyethylene and outsourcing; In second kind of scheme, the concrete material and the thickness of sheath is not described yet; All still exist sheath to cross when approaching, and broken easily skin causes gasket for packing and moisture-proof layer to stick together, and cable is opened in influence.When sheath is blocked up, the infiltration situation takes place easily, cause the situation of optical cable section infiltration.
Summary of the invention
The purpose of the utility model then is the above-mentioned deficiency that has overcome prior art, provides a kind of new departure to apply to foaming packing gasket and makes skin, can satisfy under the existing index prerequisite to gasket for packing, overcomes above-mentioned defective.
In order to solve the problems of the technologies described above, the utility model is realized through following technical scheme:
A kind of foaming packing gasket, comprising foams fills out core and crust, and core is filled out in the foaming of crust parcel, and it is characterized in that: it is foam polyethylene that core is filled out in said foaming, and crust is a polypropylene layer.
The gauge scope of said polypropylene layer is 0.05-0.08mm.
The advantage of the utility model is:
1, the thickness of polypropylene crust can increase, and to guarantee the skin phenomenon to occur brokenly, can not cause gasket for packing and moisture-proof layer to stick together, and cable is opened in influence; Guarantee simultaneously the infiltration situation not to take place, cause the situation of optical cable section infiltration.It is because polypropylene and these two kinds of material intermiscibilities of PE are better that polypropylene thickness can increase, very close to each other between two kinds of materials, can guarantee the infiltration situation not to take place, and PBT then can form the gap as increasing thickness between PBT and PE, cause the gasket for packing infiltration.
2, adopt polypropylene the most crust aspect cost, reduce by 50% than the PBT material cost.Polypropylene at the extrusion molding aspect of performance than the easy control of PBT; Polypropylene is than the PBT material softness.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Describe in further detail in conjunction with 1 pair of the utility model of accompanying drawing: foaming packing gasket comprises that crust 2 wraps up foaming and fills out core 1, and said foaming is filled out core 1 and is foam polyethylene, and crust 2 is a polypropylene layer.The gauge scope of said polypropylene layer is 0.05-0.08mm.
Extrude polyethylene foam respectively through two shared heads of extruding machine and fill out core 1 and polypropylene crust 2, reach skin depth and foam degrees homogeneous and controllable.Further, in the optical cable manufacture process, the material of use gasket for packing can also adopt the polypropylene of adding lime carbonate, tygon etc.The undeclared part that relates in the utility model is identical with prior art or adopt prior art to realize.
Claims (2)
1. foaming packing gasket comprising that foaming fills out core (1) and crust (2), and crust (2) parcel foams and fills out core (1), and it is characterized in that: it is foam polyethylene that core (1) is filled out in said foaming, and crust (2) is a polypropylene layer.
2. a kind of foaming packing gasket according to claim 1 is characterized in that: the gauge scope of said polypropylene layer is 0.05-0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204077220U CN202305946U (en) | 2011-10-24 | 2011-10-24 | Foaming and filling rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204077220U CN202305946U (en) | 2011-10-24 | 2011-10-24 | Foaming and filling rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305946U true CN202305946U (en) | 2012-07-04 |
Family
ID=46374814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204077220U Expired - Fee Related CN202305946U (en) | 2011-10-24 | 2011-10-24 | Foaming and filling rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305946U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048756A (en) * | 2013-01-06 | 2013-04-17 | 江苏南方天宏通信科技有限公司 | Double-layer compound filling rope and preparation method thereof |
| CN111554436A (en) * | 2020-06-08 | 2020-08-18 | 芜湖启航电缆材料有限公司 | Light filling rope for cable |
| CN111834040A (en) * | 2020-08-12 | 2020-10-27 | 无锡市恒龙电缆材料有限公司 | Filling strip for cable and preparation method thereof |
-
2011
- 2011-10-24 CN CN2011204077220U patent/CN202305946U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048756A (en) * | 2013-01-06 | 2013-04-17 | 江苏南方天宏通信科技有限公司 | Double-layer compound filling rope and preparation method thereof |
| CN111554436A (en) * | 2020-06-08 | 2020-08-18 | 芜湖启航电缆材料有限公司 | Light filling rope for cable |
| CN111834040A (en) * | 2020-08-12 | 2020-10-27 | 无锡市恒龙电缆材料有限公司 | Filling strip for cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |