CN205453000U - Modified polypropylene M -PP adds muscle double -walled bellows - Google Patents
Modified polypropylene M -PP adds muscle double -walled bellows Download PDFInfo
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- CN205453000U CN205453000U CN201620000704.3U CN201620000704U CN205453000U CN 205453000 U CN205453000 U CN 205453000U CN 201620000704 U CN201620000704 U CN 201620000704U CN 205453000 U CN205453000 U CN 205453000U
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- crest
- bellows
- low
- modified polypropylene
- trough
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 37
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 24
- -1 polypropylene Polymers 0.000 title claims abstract description 13
- 210000003205 Muscles Anatomy 0.000 title abstract 6
- 239000007787 solid Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000003063 flame retardant Substances 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 claims description 31
- 238000010276 construction Methods 0.000 claims description 6
- 230000000875 corresponding Effects 0.000 claims description 3
- 230000003014 reinforcing Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 210000003491 Skin Anatomy 0.000 abstract 1
- 230000002349 favourable Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 15
- 230000035939 shock Effects 0.000 description 5
- 230000001066 destructive Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to a modified polypropylene M PP adds muscle double -walled bellows. Add the muscle bellows and be the skin, place in and use the planomural pipe outside as the inlayer. It includes high crest, low crest and trough to add the muscle bellows. High crest and low crest arrange in alternate form the trough between adjacent high crest and the low crest. High crest plays the effect that improves tubular product compressive strength, and low crest plays the wave trough position's between two adjacent high crests of improvement compressive strength's effect. A modified polypropylene M PP adds muscle double -walled bellows and adds the muscle structure because of the crest is solid, has used the reinforcing in addition, has increased modified polypropylene material tough, fire -retardant type to make tubular product have good ring rigidity, the destructiveness of shocking resistance and fire resistance, the inner wall is levelly and smoothly smooth simultaneously, makes it coefficient of friction and reduces by a wide margin, is favorable to the cable to pass through.
Description
Technical field
This utility model relates to a kind of tubing, especially a kind ofModified polypropene M-PP reinforcement double-wall corrugated pipe。
Background technology
, there is following shortcoming: one, pipe material inner wall is corrugated, wears cable resistance big, and construction convenience is poor in existing single-wall corrugated pipe；Its two, tubing buckling strength is low, easily occurs snakelike curved, high to geology fundamental importance, otherwise cannot normally wear cable.Its three, shock resistance destructiveness is poor, because of single wall single layer structure, slightly damaged be all likely to cause the protectiveness to cable and decline.
Summary of the invention
Existing double-wall corrugated pipe, as: Patent No. ZL201320416491.9, utility model entitled " double-wall corrugated pipe of band reinforcing prop ", its construction features is to connect to have or integrally formed with the corrugated tube with reinforcing prop circle in double-wall corrugated pipe, reinforcing prop circle on the periphery wall of described corrugated tube is the reinforcing prop circle being intervally distributed with reinforcing prop, having the disadvantage in that one, ring stiffness is low: crest is hollow shape, and critical external compressive resistance ability is poor.Its two, shock resistance destructiveness is poor: outer wall itself is relatively thin and be hollow, when by external force, easily causes outer wall and destroys, and then destroy inwall, thus reduces the protective effect to cable.Its three, production cost is higher: because crest is hollow shape, wall thickness is relatively thin, high to the performance requirement of material, and slightly impurity i.e. may produce waste product or affect quality.
This utility model purpose is to provide a kind of modified polypropene M-PP reinforcement double-wall corrugated pipe, to overcome that corrugated pipe ring rigidity in prior art is low, destructive poor, the problem that buckling strength is low of shock resistance.
This utility model adopts the following technical scheme that a kind of modified polypropene M-PP reinforcement double-wall corrugated pipe, including reinforcement bellows, it is characterized in that: described reinforcement bellows is outer layer, outside being placed in walled tube as internal layer, at the corresponding contact between described reinforcement bellows and walled tube by hot-melt welds together.Described reinforcement bellows includes high crest, low crest and trough, described high crest and low crest are alternately, high crest and low crest are solid construction, the longitudinal profile of high crest and low crest is all in solid inverted " u "-shaped, forming trough between adjacent high crest and low crest, trough longitudinal profile is solid " u "-shaped.High crest plays the effect improving tubing comprcssive strength, and low crest plays the effect of the comprcssive strength of the wave trough position improved between two adjacent high crests.Described reinforcement bellows uses enhancement mode and flame-retardant modified polypropylene material to make, the comprcssive strength of the tubing that can improve and anti-flammability；Described walled tube uses toughening type and flame-retardant modified polypropylene material to make, in order to improve toughness and the anti-flammability of tubing.
A kind of modified polypropene M-PP reinforcement double-wall corrugated pipe described in the utility model is compared to the prior art; have the following advantages: one; because the crest of the reinforcement bellows of outer layer is solid reinforcing rib structure; and use enhancement mode modified polypropylene material to make; reinforcement bellows ring stiffness is high; it is not easily susceptible to destroy, it is possible to protect internal layer well, and then guarantee the effective protection to cable；Its two, because internal layer uses toughening type modified polypropene to make, the shock resistance of the walled tube of internal layer is destructive good；Its three, because internal layer is planomural structure, wear cable resistance little, coefficient of friction is low, is conducive to wearing cable, and construction convenience is high；Its four, internal layer and outer layer all use flame-retardant modified polypropylene to make, good flame resistance, can from fire self-extinguishment, it is ensured that under there is fire condition in cable, it is possible to reduce destructiveness to greatest extent.
Accompanying drawing explanation
Fig. 1 is the longitudinal profile structural representation of this utility model a kind of modified polypropene M-PP reinforcement double-wall corrugated pipe.Wherein (1) is reinforcement bellows, and (2) are walled tube, and (3) are high crest, and (3-1) is low crest, and (4) are trough.
Detailed description of the invention
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of modified polypropene M-PP reinforcement double-wall corrugated pipe described in the utility model, including reinforcement bellows (1), described reinforcement bellows (1) is outer layer, be placed in walled tube (2) as internal layer outside, at the corresponding contact between described reinforcement bellows (1) and walled tube (2) by hot-melt welds together.
It is that described reinforcement bellows (1) includes high crest (3), low crest (3-1 and trough (4) unlike the prior art, described high crest (3) and low crest (3-1) are alternately, high crest (3) and low crest (3-1) are solid construction, the longitudinal profile of high crest (3) and low crest (3-1) is all in solid inverted " u "-shaped, forming trough (4) between adjacent high crest (3) and low crest (3-1), trough (4) longitudinal profile is solid " u "-shaped.Described high crest (3) plays the effect improving tubing comprcssive strength, and described low crest (3-1) plays the effect of the comprcssive strength of the wave trough position improved between two adjacent high crests.
Described reinforcement bellows (1) is outer layer, uses enhancement mode and flame-retardant modified polypropylene material to make, the comprcssive strength of the tubing that can improve and anti-flammability；Described walled tube (2) is internal layer, uses toughening type and flame-retardant modified polypropylene material to make, can improve toughness and the anti-flammability of tubing.
A kind of modified polypropene M-PP reinforcement double-wall corrugated pipe described in the utility model is solid reinforced structure because of crest, in addition enhancing, toughness reinforcing, the modified polypropylene material of flame retardant type are employed, so that tubing has good ring stiffness, shock resistance destructiveness and anti-flammability, inwall flat smooth simultaneously, it is allowed to coefficient of friction be greatly reduced, beneficially cable penetration.
Manufacture method of the present utility model:
A. with A extruder extrusion reinforcement bellows (1) (temperature range: 170～250 DEG C)；
B. with B extruder extrusion walled tube (2) (temperature range: 170～250 DEG C)
C. reinforcement bellows (1) and the walled tube (2) extruded flow out into forming machine through double-walled mould, by the module cooling and shaping that forming machine is suitable with tubing external form, finally obtain a kind of modified polypropene M-PP reinforcement double-wall corrugated pipe of the walled tube (2) that outer layer is solid reinforcement bellows (1) and internal layer is flat smooth.
Claims (1)
1. a modified polypropene M-PP reinforcement double-wall corrugated pipe, including reinforcement bellows, it is characterized in that: described reinforcement bellows is outer layer, outside being placed in walled tube as internal layer, at the corresponding contact between described reinforcement bellows and walled tube by hot-melt welds together；Described reinforcement bellows includes high crest, low crest and trough, described high crest and low crest are alternately, high crest and low crest are solid construction, the longitudinal profile of high crest and low crest is all in solid inverted " u "-shaped, forming trough between adjacent high crest and low crest, trough longitudinal profile is solid " u "-shaped；Described reinforcement bellows uses enhancement mode and flame-retardant modified polypropylene material to make, and walled tube uses toughening type and flame-retardant modified polypropylene material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620000704.3U CN205453000U (en) | 2016-01-04 | 2016-01-04 | Modified polypropylene M -PP adds muscle double -walled bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620000704.3U CN205453000U (en) | 2016-01-04 | 2016-01-04 | Modified polypropylene M -PP adds muscle double -walled bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205453000U true CN205453000U (en) | 2016-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620000704.3U Active CN205453000U (en) | 2016-01-04 | 2016-01-04 | Modified polypropylene M -PP adds muscle double -walled bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205453000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462123A (en) * | 2018-01-16 | 2018-08-28 | 杭州恒信电气有限公司 | A kind of no-dig technique electric power pipeline |
-
2016
- 2016-01-04 CN CN201620000704.3U patent/CN205453000U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462123A (en) * | 2018-01-16 | 2018-08-28 | 杭州恒信电气有限公司 | A kind of no-dig technique electric power pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |