CN2572173Y - Metal and plastics combined pipe - Google Patents
Metal and plastics combined pipe Download PDFInfo
- Publication number
- CN2572173Y CN2572173Y CN 02260673 CN02260673U CN2572173Y CN 2572173 Y CN2572173 Y CN 2572173Y CN 02260673 CN02260673 CN 02260673 CN 02260673 U CN02260673 U CN 02260673U CN 2572173 Y CN2572173 Y CN 2572173Y
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- CN
- China
- Prior art keywords
- pipe
- metal
- plastic
- wall
- utility
- 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.)
- Ceased
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- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a composite metal-plastic pipe, which is composed of a metal pipe and a plastic pipe arranged in the metal pipe. The inner wall of the metal pipe is bonded with the outer wall of the plastic pipe by a bonding layer. The inner wall of the metal pipe, the bonding layer, and the outer wall of the plastic pipe are pressed tightly to be attached to each other by cold drawing and diameter reducing technology. The composite metal-plastic pipe of the utility model has the advantages of good corrosion resistance, high intensity, aging resistance and long service life. The utility model can be used as a civil water supply pipe and a delivering pipe for foods, such as dairy product, beverage, etc. The utility model can also be used as a delivering pipe for corrosive media in petroleum and chemical industry, such as acid, alkali, etc.
Description
Technical field: the utility model belongs to the pipe field, relates to a kind of composite metal-plastic pipe, is applicable to the city purification project, also is applicable to Korrosionsmediums such as chemical industry transmission soda acid.
Background technique: at present, in general plumbing field, adopt galvanized iron conduit as running water pipe, anti-corrosion capacity is poor, uses year can get rusty for a long time, causes the secondary pollution of tap water; The pipeline of Korrosionsmediums such as chemical industry transmission soda acid often adopts the engineering plastics of corrosion resistance and good, but plastic pipe intensity is low, impact resistance is poor.Someone attempts plastic tube good corrosion resistance and the high advantages of metal tube intensity, make composite metal-plastic pipe, as Chinese patent ZL01256325.0 plastic tube structure improvement, proposition axially is provided with the number of metal bar along plastic tube in the body of plastic tube body, to improve the flexural strength scheme of plastic tube, this scheme is not only made loaded down with trivial details, and does not solve the weather-proof anti-aging problem of plastic tube.
Summary of the invention: it is easy that the purpose of this utility model provides a kind of manufacture method, has the high advantage of intensity of plastic tube good corrosion resistance and metal tube concurrently, and the composite metal-plastic pipe of weather-proof anti-aging, long service life.
The technological scheme that its technical problem that solves the utility model adopts is: insert plastic tube in the metal tube, bonding between the outer wall of inner wall of metal tube and plastic tube by bonding layer, and, make the outer wall of inwall, bonding layer and the plastic tube of metal tube compress applying with cold-drawn undergauge technology.
The beneficial effects of the utility model are: compared with prior art, abolished steps such as metal bar axially is set in the plastic tube body, simplified operation and reduced cost of production; Metal tube is wrapped in outside the plastic tube, has stopped that atmosphere contacts with the direct of plastic tube, has improved weather-proof aging quality resistance, has prolonged working life; Plastic tube can be selected for use by the use occasion requirement, as the domestic water supply pipeline, can select the commercially available food grade plastic that meets the national health monitoring standard for use; Chemical pipeline can be selected the engineering plastics of corrosion resistance and good for use, and directly buying processing is easy and simple to handle.
Description of drawings:
Fig. 1 is the axial sectional view of the utility model composite metal-plastic pipe.
1 metal tube among the figure, 2 bonding layers, 3 plastic tubes.
Embodiment: insert plastic tube 3 in the metal tube 1, the outer wall of plastic tube 3 scribbles bonding layer 2, bonding by bonding layer 2 between the outer wall of metal tube 1 inwall and plastic tube 3, again by the cold-drawn undergauge, the outer wall of the inwall of metal tube 1, bonding layer 2 and plastic tube 3 compresses applying.
The material of metal tube 1 can be a stainless steel, also can be copper or other metallic material.
The material of plastic tube 3 can be selected food grade plastic for use by the use occasion requirement, or the Other Engineering plastics.
The transverse shape of metal tube 1 and plastic tube 3 is complementary, and can be circular, oval or other given shapes.
Claims (1)
1, a kind of composite metal-plastic pipe of being made up of metal tube (1) and plastic tube (3) is characterized in that inserting in the metal tube (1) plastic tube (3), is equipped with bonding layer (2) between the outer wall of metal tube (1) inwall and plastic tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260673 CN2572173Y (en) | 2002-10-15 | 2002-10-15 | Metal and plastics combined pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260673 CN2572173Y (en) | 2002-10-15 | 2002-10-15 | Metal and plastics combined pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572173Y true CN2572173Y (en) | 2003-09-10 |
Family
ID=33727670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02260673 Ceased CN2572173Y (en) | 2002-10-15 | 2002-10-15 | Metal and plastics combined pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572173Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737152A (en) * | 2014-01-22 | 2014-04-23 | 淮南巨万实业有限责任公司 | Method for manufacturing anticorrosion hydraulic support upright by welding hole shrinkage |
-
2002
- 2002-10-15 CN CN 02260673 patent/CN2572173Y/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737152A (en) * | 2014-01-22 | 2014-04-23 | 淮南巨万实业有限责任公司 | Method for manufacturing anticorrosion hydraulic support upright by welding hole shrinkage |
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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 | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20070421 Decision number of declaring invalidation: 9713 |