CN202790990U - Random copolymer polypropylene aluminum plastic composite tube - Google Patents
Random copolymer polypropylene aluminum plastic composite tube Download PDFInfo
- Publication number
- CN202790990U CN202790990U CN 201220391047 CN201220391047U CN202790990U CN 202790990 U CN202790990 U CN 202790990U CN 201220391047 CN201220391047 CN 201220391047 CN 201220391047 U CN201220391047 U CN 201220391047U CN 202790990 U CN202790990 U CN 202790990U
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- random copolymer
- plastic composite
- copolymer polypropylene
- composite tube
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Abstract
The utility model discloses a random copolymer polypropylene aluminum plastic composite tube and relates to the field of water conveying tubes. The random copolymer polypropylene aluminum plastic composite tube solves the problem that at present, the connection place of a water conveying pipeline can not simultaneously guarantee seepage prevention and convenient installation. The random copolymer polypropylene aluminum plastic composite tube is composed of an inner layer, a middle layer and an outer layer, wherein the inner layer is a polyethylene layer, the middle layer is an aluminum tape layer, and the outer layer is a random copolymer polypropylene layer. The inner layer and the middle layer are connected through a first bonding layer, the middle layer and the outer layer are connected through a second bonding layer, and the first bonding layer and the second bonding layer are modified ethylene-vinyl acetate copolymer hot melting layers. The random copolymer polypropylene aluminum plastic composite tube has the advantages of being simple in structure, easy to install and beautiful, and having no-leakage in connection.
Description
Technical field
The utility model relates to a kind of conduit pipe, is specifically related to a kind of atactic copolymerized polypropylene aluminium composite pipe.
Background technique
Aluminium-plastic composite pipe and copper pipe fitting carry out mechanical connection and the pipe-line system seepage often occurs because of the creep properties difference that has metal pipe element and plastics, and this kind seepage is very formidable in pipeline; The coefficient of linear expansion of al-plastics composite pipe is 0.0250mm/m.K, and intensity is large, and the tubing extending amount is little during the delivering hot water, and the installation cost is low and attractive in appearance.The random copolymerization polypropylene pipe coefficient of linear expansion is 0.16mm/m.K, and the tubing extending amount is larger during for delivery of hot water, increases the pipeline construction cost thereby must do expansion compensation during the pipeline construction process, and affects attractive in appearance; The polypropylene random copolymer pipeline connecting means is that hot melt connects, and joint intensity is greater than the intensity of tubing own, and there is not Seepage basically in pipeline after connecting.Therefore, existing market is in the urgent need to providing a kind of water delivery tubing that had not only had the advantage of aluminium-plastic composite pipe and polypropylene random copolymer pipe but also can overcome their shortcomings separately simultaneously.
The model utility content
The purpose of this utility model is in order to overcome deficiency of the prior art, provide a kind of simple in structure, connect ne-leakage, atactic copolymerized polypropylene aluminium composite pipe easy and attractive in appearance be installed.
For achieving the above object, the utility model provides a kind of atactic copolymerized polypropylene aluminium composite pipe to be provided with internal layer, middle level and skin, and described internal layer is polyethylene layer, and the middle level is the aluminium strip layer, and skin is the atactic copolymerized polypropene layer; Described internal layer is connected by bonding layer one with the middle level, and the middle level is connected by bonding layer two with outer; Described bonding layer one and bonding layer two are ethene improved-acetate ethylene copolymer heat-fusing glue layer.
The thickness of described internal layer, middle level and outer field polyethylene layer, aluminium strip layer and atactic copolymerized polypropene layer is 3: 2: 5, and the thickness of described bonding layer one and bonding layer two is 1/5th of aluminium strip layer.
The beneficial effects of the utility model: atactic copolymerized polypropylene aluminium composite pipe of the present utility model is simple in structure, and cost of production is low; But hot melt connects, and is easy for installation and attractive in appearance; Atactic copolymerized polypropylene aluminium composite pipe not only has aluminium-plastic composite pipe and polypropylene random copolymer pipe advantage separately, stopped Seepage, but also it is little to have a coefficient of linear expansion, can adopt identical material pipe fitting to carry out hot melt simultaneously and connect, and construction cost is low.
Below in conjunction with accompanying drawing atactic copolymerized polypropylene aluminium composite pipe of the present utility model is described further.
Description of drawings
Fig. 1 is perspective view of the present utility model;
Fig. 2 is that the A-A among the utility model Fig. 1 cuts open and shows.
Among the figure: 1, polyethylene layer, 2, the aluminium strip layer, 3, the atactic copolymerized polypropene layer, 4, bonding layer one, 5, bonding layer two.
Specific embodiment
As shown in Figure 1 and Figure 2, the atactic copolymerized polypropylene aluminium composite pipe of present embodiment is provided with internal layer, middle level and skin, and internal layer is polyethylene layer 1, and the middle level is aluminium strip layer 2, and skin is atactic copolymerized polypropene layer 3.Internal layer is connected by bonding layer 1 with the middle level, and the middle level is connected by bonding layer 25 with outer.Bonding layer 1 and bonding layer 25 are ethene improved-acetate ethylene copolymer heat-fusing glue layer.The thickness of internal layer, middle level and outer field polyethylene layer 1, aluminium strip layer 2 and atactic copolymerized polypropene layer 3 is 3: 2: 5, and the thickness of bonding layer 1 and bonding layer 25 is 1/5th of aluminium strip layer 2.
Atactic copolymerized polypropylene aluminium composite pipe of the present utility model can carry out hot melt with other water delivery pipe fitting and be connected, also can carry out hot melt with the pipe fitting of identical material connects, since this atactic copolymerized polypropylene aluminium composite pipe by bonding layer 25 at the peripheral atactic copolymerized polypropene layers 3 that coat of aluminium strip layer 2, thereby so that atactic copolymerized polypropylene aluminium composite pipe not only have the advantage of aluminium-plastic composite pipe and polypropylene random copolymer pipe but also can overcome aluminium-plastic composite pipe and polypropylene random copolymer pipe shortcoming separately simultaneously.
Claims (2)
1. an atactic copolymerized polypropylene aluminium composite pipe is characterized in that, described atactic copolymerized polypropylene aluminium composite pipe is provided with internal layer, middle level and skin, and described internal layer is polyethylene layer, and the middle level is the aluminium strip layer, and skin is the atactic copolymerized polypropene layer; Described internal layer is connected by bonding layer one with the middle level, and the middle level is connected by bonding layer two with outer; Described bonding layer one and bonding layer two are ethene improved-acetate ethylene copolymer heat-fusing glue layer.
2. atactic copolymerized polypropylene aluminium composite pipe according to claim 1, it is characterized in that, the thickness of described internal layer, middle level and outer field polyethylene layer, aluminium strip layer and atactic copolymerized polypropene layer is 3: 2: 5, and the thickness of described bonding layer one and bonding layer two is 1/5th of aluminium strip layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391047 CN202790990U (en) | 2012-08-01 | 2012-08-01 | Random copolymer polypropylene aluminum plastic composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391047 CN202790990U (en) | 2012-08-01 | 2012-08-01 | Random copolymer polypropylene aluminum plastic composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790990U true CN202790990U (en) | 2013-03-13 |
Family
ID=47818253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220391047 Expired - Fee Related CN202790990U (en) | 2012-08-01 | 2012-08-01 | Random copolymer polypropylene aluminum plastic composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197115A (en) * | 2014-09-26 | 2014-12-10 | 安徽正石新型建材有限公司 | Drainage composite pipe |
-
2012
- 2012-08-01 CN CN 201220391047 patent/CN202790990U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197115A (en) * | 2014-09-26 | 2014-12-10 | 安徽正石新型建材有限公司 | Drainage composite pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130801 |