CN203322534U - Lining thin-walled stainless steel composite welded steel pipe - Google Patents
Lining thin-walled stainless steel composite welded steel pipe Download PDFInfo
- Publication number
- CN203322534U CN203322534U CN2013202152705U CN201320215270U CN203322534U CN 203322534 U CN203322534 U CN 203322534U CN 2013202152705 U CN2013202152705 U CN 2013202152705U CN 201320215270 U CN201320215270 U CN 201320215270U CN 203322534 U CN203322534 U CN 203322534U
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- Prior art keywords
- stainless steel
- thin
- layer
- wall stainless
- pipe
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- Expired - Fee Related
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Abstract
The utility model discloses a lining thin-walled stainless steel composite welded steel pipe which comprises a basic carbon steel layer and an inner thin-walled stainless steel layer. The lining thin-walled stainless steel composite welded steel pipe is formed through welding a seam after the carbon steel layer and the thin-walled stainless steel layer are composited, pre-bent and formed. The seam comprises a thin-walled stainless steel inner layer seam and a carbon steel seam which are located in different positions. The lining thin-walled stainless steel composite welded steel pipe has the advantages that the structure is reasonable, the strength is high, the corrosion resistance is good, the transportation efficiency is high, the service life is long, the pipe is economical and environment-friendly, the manufacturing cost is low, the usage field is wide, and the pipe is suitable for large scale application and popularization.
Description
Technical field
The utility model relates to the pipe-line equipment technical field for delivery of fluid, relates in particular to a kind of liner thin-wall stainless steel composite welding steel pipe.
Background technique
Inevitably to use a lot of conveyance conduits in industry, the civil areas such as oil, chemical industry, medicine, environmental protection, food, gas conveying, city river network transformation, engineering pipeline, as PP-R pipe, carbon steel tube, steel are moulded pipe, Stainless Steel Tube, copper pipe, PP-R manages low price, good corrosion resistance, but the mechanical properties strength such as its resistance to compression are not high, the damage of easily breaking, and have inevitable deterioration phenomenon; The carbon steel tube structural strength is high, but its corrosion-resistant is corroded and wears after the certain time limit of use of being everlasting; Steel is moulded the inside and outside material of pipe dual physical property, and their thermal expansion coefficient difference will cause coming off of inner plastic after using under different environment, different transmission medium, condition of different temperatures; Stainless Steel Tube, copper pipe structure intensity is high, corrosion resistance is strong, but its price is high, is not suitable for large-scale application, popularization.
Summary of the invention
For solving the prior art deficiency, the utility model aim to provide a kind of rational in infrastructure, intensity is high, good corrosion resistance, transfer efficiency are high, long service life, economic environmental protection, low cost of manufacture, use field extensively, the liner thin-wall stainless steel composite welding steel pipe that is applicable to large-scale application, promotes.
The utility model is achieved by the following technical solution: liner thin-wall stainless steel composite welding steel pipe, comprise basic unit's carbon steel layer, internal layer thin-wall stainless steel layer, it is characterized in that: described liner thin-wall stainless steel composite welding steel pipe is compound by carbon steel layer, thin-wall stainless steel layer, by weld seam, be welded after the pre-bending moulding, described weld seam consists of thin-wall stainless steel internal layer weld seam and carbon steel weld seam, and described thin-wall stainless steel internal layer weld seam and carbon steel weld seam are in different positions.
The thickness of described internal layer thin-wall stainless steel layer is 1/4-1/3 of described carbon steel layer thickness.
After the utility model adopts technique scheme, because expansion coefficient inside and outside basic unit's carbon steel layer, internal layer thin-wall stainless steel layer approaches, make it in the situation that difference variation is larger still can guarantee double-deckly in conjunction with tightness, guaranteed not there will be the phenomenon of inside and outside delamination; And not at same position, more effectively raise the strength reliability of composite steel tube due to the weld seam of the weld seam of basic unit's carbon steel layer and internal layer thin-wall stainless steel layer.
That the utility model liner thin-wall stainless steel composite welding steel pipe has advantages of is rational in infrastructure, intensity is high, good corrosion resistance, transfer efficiency are high, long service life, economic environmental protection, low cost of manufacture, use field extensively, be applicable to large-scale application, promote.
The accompanying drawing explanation
The structural representation that Fig. 1 is the utility model embodiment.
In figure, each sequence number respectively: 1, carbon steel layer; 2, thin-wall stainless steel layer; 3, thin-wall stainless steel internal layer weld seam; 4, carbon steel weld seam.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
Referring to accompanying drawing 1, a kind of liner thin-wall stainless steel composite welding steel pipe, comprise basic unit's carbon steel layer 1, internal layer thin-wall stainless steel layer 2, described liner thin-wall stainless steel composite welding steel pipe is compound by carbon steel layer 1, thin-wall stainless steel layer 2, by weld seam, be welded after the pre-bending moulding, described weld seam consists of thin-wall stainless steel internal layer weld seam 3 and carbon steel weld seam 4, described thin-wall stainless steel internal layer weld seam 3 and carbon steel weld seam 4 are in different positions, and the thickness of described thin-wall stainless steel layer 2 is 1/4 of described carbon steel layer 1 thickness.
Embodiment is just for the ease of understanding the technical solution of the utility model; do not form the restriction to the utility model protection domain; every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present utility model, above scheme being done that does not break away from technical solutions of the utility model, within all still belonging to the utility model protection domain.
Claims (2)
1. liner thin-wall stainless steel composite welding steel pipe, comprise basic unit's carbon steel layer (1), internal layer thin-wall stainless steel layer (2), it is characterized in that: described liner thin-wall stainless steel composite welding steel pipe by the carbon steel layer (1), (2) the thin-wall stainless steel layer be welded by weld seam after compound, pre-bending moulding, (4) (3) described weld seam consist of with the carbon steel weld seam thin-wall stainless steel internal layer weld seam, described thin-wall stainless steel internal layer weld seam (3) with the carbon steel weld seam (4) in different positions.
2. liner thin-wall stainless steel composite welding steel pipe according to claim 1 is characterized in that: described thin-wall stainless steel layer thickness (2) be described carbon steel layer (1) thickness 1/4-1/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202152705U CN203322534U (en) | 2013-04-25 | 2013-04-25 | Lining thin-walled stainless steel composite welded steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202152705U CN203322534U (en) | 2013-04-25 | 2013-04-25 | Lining thin-walled stainless steel composite welded steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322534U true CN203322534U (en) | 2013-12-04 |
Family
ID=49661885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202152705U Expired - Fee Related CN203322534U (en) | 2013-04-25 | 2013-04-25 | Lining thin-walled stainless steel composite welded steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322534U (en) |
-
2013
- 2013-04-25 CN CN2013202152705U patent/CN203322534U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140425 |