CN201081053Y - Stainless steel composite tube - Google Patents
Stainless steel composite tube Download PDFInfo
- Publication number
- CN201081053Y CN201081053Y CNU200720080581XU CN200720080581U CN201081053Y CN 201081053 Y CN201081053 Y CN 201081053Y CN U200720080581X U CNU200720080581X U CN U200720080581XU CN 200720080581 U CN200720080581 U CN 200720080581U CN 201081053 Y CN201081053 Y CN 201081053Y
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- tube
- steel tube
- parent
- 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
- 239000010935 stainless steel Substances 0.000 title claims abstract description 42
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 42
- 239000002131 composite material Substances 0.000 title claims description 11
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 238000005219 brazing Methods 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model provides a stainless steel clad pipe to solve the problem that the prior stainless steel clad pipe reduces the anticorrosive property because of welding. The utility model comprises a parent tube (4) and a first stainless steel tube (3) which is coupled with the internal surface or/and the external surface of the parent tube (4), wherein, two ends of the parent tube (4) are respectively connected with a second stainless steel tube (1) into a butting joint tube, the second stainless steel tube and the first stainless steel tube are seamlessly coupled.
Description
Technical field:
The utility model is relevant with metal composite pipe.
Background technique:
Existing metal composite pipe has metallurgical tie layer between parent tube and Stainless Steel Tube, solved composite pipe and fitted not closely, has the problem of gap, interlayer and delamination.Composite pipe needs to be welded into very long pipeline in use, because parent tube is carbon steel tubing, carbon steel runs through attachment weld because of welding, makes the weld joint become the not corrosion resistant weak link of pipeline, has reduced the working life of pipeline.
The model utility content:
It is a kind of simple in structure that the purpose of this utility model provides, and can not reduce the stainless steel composite pipe of decay resistance during welding.
The utility model is achieved in that
The utility model stainless steel composite pipe, comprise parent tube 4 and with the internal surface of parent tube 4 or/and first Stainless Steel Tube 3 of outer surface socket, the two ends of parent tube 4 are connected to butt tube with second Stainless Steel Tube 1 respectively, and second Stainless Steel Tube and first Stainless Steel Tube do not have the gap socket.
Between the parent tube 4 and second Stainless Steel Tube 1 and first Stainless Steel Tube 3 brazing layer 5 is arranged.
Parent tube 4 equates that with the inside and outside footpath of second Stainless Steel Tube 1 joint has length and the length of butt tube and the equal in length of brazing layer 5 of soldered 2, the first Stainless Steel Tubes 3.
First and second Stainless Steel Tube is the identical or close Stainless Steel Tube of performance, and parent tube 4 is a carbon steel tubing.
The utility model is made of stainless steel material entirely at two ends, can not infiltrate the corrosion resistance that weld seam reduces composite pipe because of carbon steel when welding.Simple in structure, cost of production is low, and welding can be widely used in the material-transporting system of chemical industry, machinery and building field easily.
Description of drawings:
Fig. 1 is one of structural drawing of the present utility model.
Fig. 2 is two of a structural drawing of the present utility model.
Embodiment:
The Stainless Steel Tube 1 that identical bore is welded at the two ends of carbon steel parent tube 4 becomes butt tube, and butt tube has weld seam 2, does not have gap socket and the isometric Stainless Steel Tube 3 of butt tube at the internal surface or the outer surface of butt tube.Brazing layer 5 is arranged between Stainless Steel Tube 3 and the butt tube.
Its preparation process is the even braze of socket face coating with butt tube or Stainless Steel Tube 3, Stainless Steel Tube 3 is enclosed within butt tube outer wall or inwall, carrying out drawing through the tubulation drawing machine expands and to close processing, heat then, be incubated, make the solder filling butt tube of fusion and the gap of Stainless Steel Tube 3, through cooling, make the solder crystallization again, form brazing layer 5.
Claims (4)
1. stainless steel composite pipe, comprise parent tube (4) and with the internal surface of parent tube (4) or/and first Stainless Steel Tube (3) of outer surface socket, the two ends that it is characterized in that parent tube (4) are connected to butt tube with second Stainless Steel Tube (1) respectively, and second Stainless Steel Tube and first Stainless Steel Tube do not have the gap socket.
2. stainless steel composite pipe according to claim 1 is characterized in that between parent tube (4) and second Stainless Steel Tube (1) and first Stainless Steel Tube (3) brazing layer (5) being arranged.
3. stainless steel composite pipe according to claim 1, it is characterized in that parent tube (4) equates with the inside and outside footpath of second Stainless Steel Tube (1), joint has soldered (2), the equal in length of the length of first Stainless Steel Tube (3) and the length of butt tube and brazing layer (5).
4. according to claim 1 or 2 or 3 described stainless steel composite pipes, it is characterized in that first and second Stainless Steel Tube is the identical or close Stainless Steel Tube of performance, parent tube (4) is a carbon steel tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720080581XU CN201081053Y (en) | 2007-08-08 | 2007-08-08 | Stainless steel composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720080581XU CN201081053Y (en) | 2007-08-08 | 2007-08-08 | Stainless steel composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201081053Y true CN201081053Y (en) | 2008-07-02 |
Family
ID=39614725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720080581XU Expired - Fee Related CN201081053Y (en) | 2007-08-08 | 2007-08-08 | Stainless steel composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201081053Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537533A (en) * | 2011-12-13 | 2012-07-04 | 中联重科股份有限公司 | Material conveying machine, composite structure conveying pipe and manufacturing method thereof |
| CN102692025A (en) * | 2012-06-14 | 2012-09-26 | 安徽沃木采暖科技有限公司 | Balanced-type delivering straight pipe |
| CN104477843A (en) * | 2014-11-29 | 2015-04-01 | 无锡纳润特科技有限公司 | Combined ammonia inlet pipe of chemical ammonia decomposition furnace pipe |
-
2007
- 2007-08-08 CN CNU200720080581XU patent/CN201081053Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537533A (en) * | 2011-12-13 | 2012-07-04 | 中联重科股份有限公司 | Material conveying machine, composite structure conveying pipe and manufacturing method thereof |
| CN102537533B (en) * | 2011-12-13 | 2015-04-08 | 中联重科股份有限公司 | Material conveying machine, composite structure conveying straight pipe and manufacturing method thereof |
| CN102692025A (en) * | 2012-06-14 | 2012-09-26 | 安徽沃木采暖科技有限公司 | Balanced-type delivering straight pipe |
| CN104477843A (en) * | 2014-11-29 | 2015-04-01 | 无锡纳润特科技有限公司 | Combined ammonia inlet pipe of chemical ammonia decomposition furnace 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: 20080702 Termination date: 20120808 |