CN2739450Y - Brass-plastic composite pipe - Google Patents
Brass-plastic composite pipe Download PDFInfo
- Publication number
- CN2739450Y CN2739450Y CN 03240921 CN03240921U CN2739450Y CN 2739450 Y CN2739450 Y CN 2739450Y CN 03240921 CN03240921 CN 03240921 CN 03240921 U CN03240921 U CN 03240921U CN 2739450 Y CN2739450 Y CN 2739450Y
- Authority
- CN
- China
- Prior art keywords
- brass
- pipe
- tube
- plastic
- composite pipe
- 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
Links
Abstract
The utility model relates to a brass-plastic composite pipe which is used to convey fluid. A brass pipe can adopt seamless brass pipes of various thickness and various specifications. A plastic pipe is adhered to the internal wall of the brass pipe with thermosol. The utility model has the advantages of simple preparing process, small volume, firm installation, good sealing property, and low thermal expansion coefficient.
Description
Affiliated technical field
The utility model relates to a kind of brass and plastic composite pipe of conveyance fluid, is specially adapted to building supply, heating, air feed, and the anti-corrosion pipeline of various conveying chemical liquid raw materials.
Background technique
In order to overcome the not corrosion-resistant and common plastics tube intensity difference of steel pipe, short deficiency of life-span, various novel tubes and production method are studied in succession and develop.The patent No. is " 00208937.8 ", " polypropylene random copolymer pipe and extrusion die ", it is to be extruded through plastic extruder by atactic copolymerized polypropene to form, its advantage is a good seal performance, this tubing exists volume big, the shortcoming that thermal expansion coefficient height, the weld of tubing and pipe fitting are aging with the passing of time easily.The patent No. for " 99254738.5 " " Copper-plastic Composite Pipe " it at the inside and outside plastics that all are compounded with of pure copper tube,, multiple working procedures such as thermosol bonding, surface coating compound through pushing draw and form, because the fine copper metal rigidity is relatively poor, so reaching tubing pressure in actual use requires to increase the copper pipe wall thickness, and fine copper costs an arm and a leg, and it is bigger to promote the use of difficulty.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned pipeline, provides a kind of technology simple, install firmly, and NEW TYPE OF COMPOSITE pipe with low cost.
The technological scheme that the utility model adopted is: this brass and plastic composite pipe, be drawn into thin walled tube with brass, and in pipe, be stained with plastic tube, one deck thermosol strong bond is arranged between brass tube and the plastic tube, make it closely to become one.
The utility model volume is little, and good seal performance is installed firmly, thermal expansion coefficient is low, is the body material of composite pipe owing to adopt brass, is that the composite pipe of body material is compared the metal yield intensity that can effectively increase himself with fine copper, under identical service condition, can reduce pipe thickness.The price of another main component zinc metal is starkly lower than fine copper in the brass in addition, so the cost gap is obvious, large-scale promotion is used be more prone to feasible.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done into description.
Accompanying drawing is the utility model structural representation.
Embodiment
Shown in the accompanying drawing, (1) brass tube, (2) thermosol, (3) plastic tube.Brass tube (1) can adopt different-thickness, the seamless brass tube of different size, plastic tube (3) can adopt common polythene, crosslinked polyethylene, atactic copolymerized polypropene or Polybutylene Pipe, scribbles thermosol (2) and can adopt the hot melt pressure sensitive adhesive on the outer wall of plastic tube (3).The plastic tube of selecting for use (3) external diameter is less than the internal diameter of brass tube (1), and the plastic tube (3) that will scribble thermosol (2) pierces in the brass tube (1), with the metal stretching machine brass tube (1) is stretched, behind brass tube (1) drawn, the undergauge with plastic tube (3) outer wall close adhesion, then plastic tube (3) is heated, pressurizes, expanded, make it and nearly compound being adjacent to of a step of brass tube (1).
Claims (2)
1, a kind of brass and plastic composite pipe is characterized in that being stained with plastic tube (3) in the brass tube (1) of different-thickness different size, and the material of plastic tube can be a polyethylene; Crosslinked polyethylene; Atactic copolymerized polypropene or polybutylene etc.
2, brass according to claim 1 and plastic composite pipe is characterized in that having thermosol (2) bonding between brass tube (1) and the plastic tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240921 CN2739450Y (en) | 2003-03-17 | 2003-03-17 | Brass-plastic composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240921 CN2739450Y (en) | 2003-03-17 | 2003-03-17 | Brass-plastic composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739450Y true CN2739450Y (en) | 2005-11-09 |
Family
ID=35354516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03240921 Expired - Fee Related CN2739450Y (en) | 2003-03-17 | 2003-03-17 | Brass-plastic composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739450Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832721A (en) * | 2015-04-30 | 2015-08-12 | 生维国 | Composite metal pipe material |
| CN105179818A (en) * | 2015-06-13 | 2015-12-23 | 陈新棠 | Composite copper pipe |
-
2003
- 2003-03-17 CN CN 03240921 patent/CN2739450Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832721A (en) * | 2015-04-30 | 2015-08-12 | 生维国 | Composite metal pipe material |
| CN105179818A (en) * | 2015-06-13 | 2015-12-23 | 陈新棠 | Composite copper pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Du Zhou Document name: Notification of Termination of Patent Right |
|
| 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 |