CN203797175U - Halogen-free low smoke weather-proof corrugated pipe - Google Patents
Halogen-free low smoke weather-proof corrugated pipe Download PDFInfo
- Publication number
- CN203797175U CN203797175U CN201420115060.3U CN201420115060U CN203797175U CN 203797175 U CN203797175 U CN 203797175U CN 201420115060 U CN201420115060 U CN 201420115060U CN 203797175 U CN203797175 U CN 203797175U
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- Prior art keywords
- halogen
- low smoke
- free low
- corrugated pipe
- steel belt
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Abstract
The utility model relates to a halogen-free low smoke weather-proof corrugated pipe which comprises a steel belt which is black, high in strength and good in corrosion resistance. The ports of the steel belt are wavy, sections of the steel belt are mutually meshed so that connection strength of the corrugated pipe can be increased, the steel belt is coated with halogen-free low smoke inflaming retarding irradiation polyolefin in a packaged mode, the halogen-free low smoke inflaming retarding irradiation polyolefin has the characteristics of low smoke, non-halogen, nontoxicity, inflaming retarding, high temperature resistance and the like, and therefore the steel belt and materials in the steel belt are further isolated and protected. The halogen-free low smoke weather-proof corrugated pipe has the advantages of being simple in structure, low in manufacturing difficulty, good in corrosion resistance, high in mechanical strength and connection strength and the like; the halogen-free low smoke inflaming retarding irradiation polyolefin is adopted, so that it is guaranteed that the corrugated pipe has the advantages of inflaming retarding, low smoke, non-halogen, nontoxicity, good weather resistance and the like; materials inside and outside the corrugated pipe can be well protected and isolated under the combined action of the black steel belt and the halogen-free low smoke inflaming retarding irradiation polyolefin.
Description
Technical field
The utility model relates to corrugated pipe technical field, specifically the weather-proof bellows of a kind of low smoke, zero halogen.
Background technique
Quickening day by day along with urban infrastructure construction step, bellows is used by increasingly extensive as important infrastructure equipment, meanwhile, people also more and more pay attention to the requirement of the quality of bellows and characteristic, people's living environment is day by day complicated at present, domestic sewages etc. are increasing, composition is day by day complicated, the Environmental Conditions of bellows is more severe, so people require also more and more higher to the combination property of bellows, general bellows only has corrosion-resistant, the characteristic of the minority aspects such as environmental protection or intensity height, can not meet the requirement that modern people are higher to bellows combination property.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of low smoke, zero halogen weather-proof bellows.
The utility model solves its technical problem and realizes by the following technical solutions:
The weather-proof bellows of low smoke, zero halogen, comprises steel band, and described steel band is that intensity is high, the black steel band of good corrosion resistance, the port undulate of steel band, and interlock mutually between steel band section and section, to increase the join strength of bellows; Described steel band periphery is extruded with halogen-free low-smoke irradiation polyolefin, and halogen-free low-smoke irradiation polyolefin has the characteristics such as low cigarette, Halogen be nontoxic, fire-retardant, high temperature resistant, and steel band and steel band materials inside are played to further insulation blocking effect.
Thickness 0.3～the 0.5mm of described steel band, the steel band that 0.3～0.5mm is thick has guaranteed the routine use requirement of bellows, has reduced cost of production, has saved resource, the unnecessary waste of having avoided blocked up steel band to cause.
The beneficial effects of the utility model are: the utlity model has simple in structure, manufacture difficulty is low, good corrosion resistance, mechanical strength are high, join strength advantages of higher; and adopted halogen-free low-smoke irradiation polyolefine material; guaranteed that bellows has fire-retardant, the advantage such as low smoke and zero halogen is nontoxic, good weatherability, the comprehensive function of steel band and halogen-free low-smoke irradiation polyolefine material can have been played to the material inside and outside bellows very strong protection, buffer action.
The characteristic that the utility model also has is:
(1) halogen-free low-smoke irradiation polyolefine material has the characteristics such as remarkable heat-resisting, low smoke, zero halogen environmental protection, UV-b radiation, there is best weather resistance, UV resistant and ozone erodibility simultaneously, and can bear wider temperature variation, can reach 25 years the service life under general condition; Halogen-free low-smoke irradiation polyolefine material has special surface property: have agent of low hygroscopicity, fungicidal properties is good, not sticky to many materials;
(2) halogen-free low-smoke irradiation polyolefine material has splendid low smoke, zero halogen and flame retardant property, PH >=4.3; Specific conductance≤10 μ S/mm; Flame retarding can reach FV-0 level, do not prolong combustion after lighting, and burning basic point is not;
(3) can pass through ozone resistance test: specimen length 20cm, places 16h in dry vessel.(2 ± 0.1) that flexuraltest coupon diameter used is the outside diameter of cable doubly, test chamber: temperature (40 ± 2) ℃, relative moisture (55 ± 5) %, ozone concentration (200 ± 50) * 10-6%, air mass flow: 0.2～0.5 times of volume of the chamber/min.Sample is placed test chamber 72h, and after test, jacket surface is without eyesight visible crack.
(4) can pass through weathering resistance/UV test: each cycle: watering 18min, xenon lamp is dried 102min, temperature (65 ± 3) ℃, relative moisture 65%, the minimum power under wavelength 300～400nm condition: (60 ± 2) W/m2.Continue to carry out flexuraltest under room temperature after 720h.Coupon diameter is 4～5 times of external diameter, and after test, jacket surface is without eyesight visible crack.
(5) can test (25 years): Cl and Br content by the thermal endurance of carrying out according to EN60216-1, EN60216-2 Arrhenius curve: HCL≤0.5%; HBr≤0.5%; F content≤0.1%;
(6) can pass through impermeability test: in bellows, pour water or cement slurry that the ratio of mud is 0.5 30 minutes without leaking, spillage.
(7) can test by tension: axial tension 5KN, corrugated pipe wall is without damage.
(8) can test by bending resistance: during 30d that bending bellows is radius of curvature by bellows tortuosity folding, bellows without leaking, spillage.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is sectional view of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with accompanying drawing, further set forth the utility model.
As shown in Figure 1, the weather-proof bellows of a kind of low smoke, zero halogen, comprises steel band 1, and described steel band 1 is that intensity is high, the black steel band of good corrosion resistance, the port undulate of steel band 1, and interlock mutually between 1 section of steel band and section, to increase the join strength of bellows; Described steel band 1 periphery is extruded with halogen-free low-smoke irradiation polyolefin 2, and halogen-free low-smoke irradiation polyolefin 2 has the characteristics such as low cigarette, Halogen be nontoxic, fire-retardant, high temperature resistant, and steel band 1 and steel band 1 materials inside are played to further insulation blocking effect.
Thickness 0.3～the 0.5mm of described steel band 1, the steel band 1 that 0.3～0.5mm is thick has guaranteed the routine use requirement of bellows, has reduced cost of production, has saved resource, the unnecessary waste of having avoided blocked up steel band 1 to cause.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. the weather-proof bellows of low smoke, zero halogen, comprises steel band, it is characterized in that: described steel band is black steel band, the port undulate of steel band, interlock mutually between steel band section and section; Described steel band periphery is extruded with halogen-free low-smoke irradiation polyolefin.
2. the weather-proof bellows of a kind of low smoke, zero halogen according to claim 1, is characterized in that: the thickness 0.3～0.5mm of described steel band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115060.3U CN203797175U (en) | 2014-03-13 | 2014-03-13 | Halogen-free low smoke weather-proof corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115060.3U CN203797175U (en) | 2014-03-13 | 2014-03-13 | Halogen-free low smoke weather-proof corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797175U true CN203797175U (en) | 2014-08-27 |
Family
ID=51379385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420115060.3U Expired - Fee Related CN203797175U (en) | 2014-03-13 | 2014-03-13 | Halogen-free low smoke weather-proof corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912739A (en) * | 2014-03-13 | 2014-07-09 | 安徽猎塔电缆集团有限公司 | Halogen-free low-smoke weather-proof corrugated pipe |
-
2014
- 2014-03-13 CN CN201420115060.3U patent/CN203797175U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912739A (en) * | 2014-03-13 | 2014-07-09 | 安徽猎塔电缆集团有限公司 | Halogen-free low-smoke weather-proof corrugated pipe |
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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: 20140827 Termination date: 20190313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |