CN2446359Y - Sandwiched net compound plastic lining aluminium alloy tube - Google Patents
Sandwiched net compound plastic lining aluminium alloy tube Download PDFInfo
- Publication number
- CN2446359Y CN2446359Y CN 00222755 CN00222755U CN2446359Y CN 2446359 Y CN2446359 Y CN 2446359Y CN 00222755 CN00222755 CN 00222755 CN 00222755 U CN00222755 U CN 00222755U CN 2446359 Y CN2446359 Y CN 2446359Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- aluminum alloy
- plastic
- plastic lining
- aluminium alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a composite pipe, particularly a sandwiched net compound plastic lining aluminum alloy pipe, which is composed of an outer aluminum alloy pipe, a metal wire net and an inner plastic pipe. The metal wire net (2) surrounds the axial direction of the pipe to be clamped between the outer aluminum alloy pipe (1) and the inner plastic pipe (3). The utility model has reasonable structure and adopts the sandwiched net compound plastic lining aluminum alloy pipe to avoid the phenomenon of the separation of aluminum and plastic caused by the cold and hot change of a plastic lining aluminum alloy pipe. Thus the plastic lining aluminum alloy pipe can work in the environment with the change of large temperature difference and the applying ranges of the plastic lining aluminum alloy pipe are widened. The utility model is suitable for various aluminum alloy pipes.
Description
The utility model relates to composite pipe, and particularly a kind of folder is netted compound plastics-lined aluminium alloy pipe.
Therefore plastics-lined aluminium alloy pipe in the prior art has the overall merit of aluminum metal and plastics owing to be lined with plastic layer in aluminum pipe, and aluminium alloy pipe mechanical strength height, inside liner plastics have guaranteed the cleaning of institute's conveyance fluid.But because the thermal expansion coefficient of aluminum metal and two kinds of materials of plastics is inconsistent, and plastics are because of the softer easy generation plastic deformation of quality, in use run into cold and hot difference variation when big, the variation bigger than aluminum pipe can take place greatly than aluminum metal because of its thermal expansion coefficient in plastic lining, occur moulding in the pipe indentation aluminum pipe, or the phenomenon of the aluminum pipe port of emerging, cause aluminum pipe with mould the pipe separate, therefore limited the operating temperature range of plastics-lined aluminium alloy pipe, only change little zone, thereby limited its application a temperature difference.
The purpose of this utility model is: provide a kind of folder to net compound plastics-lined aluminium alloy pipe, it can be worked in higher temperature environment, does not separate the phenomenon that gets loose and plastic-aluminum do not occur, can move in water heating system safely.
Formation of the present utility model: be made of aluminum alloy outer tube, wire gaze and plastic inner pipe, wire gaze (2) is sandwiched between aluminum alloy outer tube (1) and the plastic inner pipe (2) around tube axis direction.Aluminum alloy outer tube (1), wire gaze (2) and plastic inner pipe (3) are combined into one, and the wire gaze (2) that constitutes with wire is coated on plastic inner pipe (3) outer wall, penetrate internal diameter than in the bigger aluminum alloy outer tube (1) of plastic inner pipe (3) external diameter.
Compared with the prior art, the utility model is rational in infrastructure, adopt the compound plastics-lined aluminium alloy pipe of folder net, avoided plastics-lined aluminium alloy pipe the plastic-aluminum segregation phenomenon to occur because of cold and hot variation, thereby plastics-lined aluminium alloy pipe can be worked in the environment that big difference variation is arranged, widened the application of plastics-lined aluminium alloy pipe.
Accompanying drawing 1 is the utility model structural drawing;
Accompanying drawing 2 is the utility model sectional drawings;
Accompanying drawing 3 is left views of accompanying drawing 2.
Embodiment of the present utility model: as shown in drawings, be made of aluminum alloy outer tube (1), wire gaze (2) and plastic inner pipe (3), wire gaze (2) is sandwiched between aluminum alloy outer tube (1) and the plastic inner pipe (3) along tube axis direction.Aluminum alloy outer tube (1), wire gaze (2) and plastic inner pipe (3) are combined into one, the net that constitutes with wire is coated on plastic inner pipe (3) outer wall, penetrate internal diameter than in the bigger aluminum alloy outer tube (1) of plastic inner pipe (3) external diameter, carry out tube reducing stretching compound molding.
Also can carry out with wire on plastic inner pipe (3) outer wall two-way (with moulding tubular axis) spiral to angled twine be woven into net after, penetrate and carry out tube reducing in the aluminum alloy outer tube (1) and stretch compoundly, make the compound plastics-lined aluminium alloy pipe of folder net.
Because adopt tube reducing stretching combination process, in drawing process, the axial pressure of tube reducing embeds wire gaze respectively the aluminum pipe inwall and moulds the pipe outer wall.Though the hardness ratio plastics height of aluminum metal, because that the site of wire gaze has is wiry overlapping, there is relatively large pressure at the place in the site, is enough to the site is embedded the aluminum pipe inwall.The line of wire gaze plays the effect of similar key pin here with point, has increased to shear drag and stop and mould relatively moving of pipe and aluminum pipe, makes vertical harmomegathus of moulding pipe convergent consistent with vertical harmomegathus of aluminum pipe, manages and aluminum pipe is combined into an entity thereby will mould.
Claims (2)
1, a kind of folder is netted compound plastics-lined aluminium alloy pipe, is made of aluminum alloy outer tube, wire gaze and plastic inner pipe, it is characterized in that: wire gaze (2) is sandwiched between aluminum alloy outer tube (1) and the plastic inner pipe (2) around tube axis direction.
2, folder according to claim 1 is netted compound plastics-lined aluminium alloy pipe, it is characterized in that: aluminum alloy outer tube (1), wire gaze (2) and plastic inner pipe (3) are combined into one, the wire gaze (2) that constitutes with wire is coated on plastic inner pipe (3) outer wall, penetrates internal diameter than in the bigger aluminum alloy outer tube (1) of plastic inner pipe (3) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222755 CN2446359Y (en) | 2000-04-07 | 2000-04-07 | Sandwiched net compound plastic lining aluminium alloy tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222755 CN2446359Y (en) | 2000-04-07 | 2000-04-07 | Sandwiched net compound plastic lining aluminium alloy tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2446359Y true CN2446359Y (en) | 2001-09-05 |
Family
ID=33587429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00222755 Expired - Fee Related CN2446359Y (en) | 2000-04-07 | 2000-04-07 | Sandwiched net compound plastic lining aluminium alloy tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2446359Y (en) |
-
2000
- 2000-04-07 CN CN 00222755 patent/CN2446359Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |