CN200995508Y - Composite stainless-steel tube - Google Patents
Composite stainless-steel tube Download PDFInfo
- Publication number
- CN200995508Y CN200995508Y CN 200720078242 CN200720078242U CN200995508Y CN 200995508 Y CN200995508 Y CN 200995508Y CN 200720078242 CN200720078242 CN 200720078242 CN 200720078242 U CN200720078242 U CN 200720078242U CN 200995508 Y CN200995508 Y CN 200995508Y
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- tube
- steel tube
- inner tube
- composite
- 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 66
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 66
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 238000003466 welding Methods 0.000 description 8
- 229910052759 nickel Inorganic materials 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000010962 carbon steel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
- Arc Welding In General (AREA)
Abstract
A composite stainless steel tube is characterized in that the tube includes an internal stainless steel tube and an external stainless steel tube, which are made of different kinds of steel, the external stainless steel tube (1) is coated on the internal stainless steel tube (2), and the internal stainless steel tube and the external stainless steel tube are suppressed into a whole.
Description
Affiliated field
The utility model relates to a kind of multiple tube, particularly a kind of composite stainless steel pipe.
Background technology
At present, the material of building field such as antitheft door, window and guardrail, or be used to carry the pipeline of corrosive liquids such as soda acid, gas, in order to satisfy its requirement corrosion-resistant and intensity, need to use nickelic high chromium rust free steel pipe, and the wall thickness of steel pipe need reach certain thickness, because stainless steel raw material continuous rise, the price of material is comparatively expensive, uses nickelic high chromium rust free steel pipe to increase cost merely; In recent years, the compound multiple tube of carbon steel and stainless steel is also being used widely, galvano-cautery will take place but carbon steel and stainless steel are compound, this is worthless, in addition, carbon steel is installed when being connected with stainless steel composite pipe and is welded oral area because carbon steel and stainless steel are one, and the very fast meeting of interface is caused potential safety hazard by corrosion.
Summary of the invention
The purpose of this utility model promptly is to overcome the shortcoming of prior art, provides a kind of economical and practical, can reduce use cost greatly, the composite stainless steel pipe of function admirable, and galvano-cautery can not take place in it, has rigidity preferably, the security performance height.
The purpose of this utility model is achieved through the following technical solutions: a kind of composite stainless steel pipe, and it comprises the inside and outside two-layer stainless steel tube of different steel grades, and the stainless steel outer tube is coated on the stainless steel inner tube, and they are pressed into as a whole.
Carry corrosive liquids, gases such as soda acid to being used to, the stainless steel inner tube of composite stainless steel pipe adopts nickelic high chrome kind, as SUS304, SUS316, SUS321 etc.; The stainless steel outer tube adopts low nickel or does not have the nickel steel kind, as SUS202, SUS201,409L, 430,1Cr13 etc.After the nickelic high chromium-stainless steel inner tube welding, low nickel or nickelles stainless steel skin are coated on welding formation stainless steel outer tube on the nickelic high chromium-stainless steel inner tube, and their drawings at last are pressed into as a whole, and internal layer is anticorrosive, and skin is gained in strength.
Decorate or use at the environment that is corrosive being used for, the stainless steel inner tube of composite stainless steel pipe adopts low nickel or does not have the nickel steel kind, as SUS202, SUS201,409L, 430,1Cr13 etc.; The stainless steel outer tube adopts nickelic high chrome kind, as SUS304, SUS316, SUS321 etc.After low nickel or the welding of nickelles stainless steel inner tube, nickelic high chromium-stainless steel skin is coated on welding formation stainless steel outer tube on low nickel or the nickelles stainless steel inner tube, and their drawings at last are pressed into as a whole.Outer anticorrosive, internal layer is strengthened intensity.
The cross section of stainless steel outer tube, stainless steel inner tube is multiple geometry, as circle, rectangle, square or oval.
By top narration as can be seen, the utlity model has following advantage: have more satisfactory rigidity, non-corrosive, corrosion-resistant, inside and outside two-layer stainless steel material, differ according to purposes, ectonexine uses the material of different costs and resistance to corrosion, it greatly reduces use cost, can satisfy the demand of different field, the security performance height.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model
Fig. 2 is the another kind of structural representation of the utility model
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described, protection domain of the present utility model is not limited to following examples.
Embodiment 1: as shown in Figure 1, the cross section of stainless steel outer tube 1, stainless steel inner tube 2 is square, and stainless steel outer tube 1 is coated on the stainless steel inner tube 2, and they are pressed into as a whole.This multiple tube is used to carry sour corrosion liquid, and the stainless steel inner tube 2 of composite stainless steel pipe adopts SUS304; Stainless steel outer tube 1 adopts SUS202.After 2 welding of stainless steel inner tube, the stainless steel skin is coated on welding formation stainless steel outer tube 1 on the stainless steel inner tube 2, and their drawings at last are pressed into as a whole, and internal layer is anticorrosive, and skin is gained in strength.
Embodiment 2: as shown in Figure 2, the cross section of stainless steel outer tube 1, stainless steel inner tube 2 is circle, and stainless steel outer tube 1 is coated on the stainless steel inner tube 2, and they are pressed into as a whole.Be used for decorating, the stainless steel inner tube 2 of composite stainless steel pipe adopts SUS201; Stainless steel outer tube 1 adopts SUS316.After 2 welding of stainless steel inner tube, the stainless steel skin is coated on welding formation stainless steel outer tube 1 on the stainless steel inner tube 2, and their drawings at last are pressed into as a whole.Outer anticorrosive, internal layer is strengthened intensity.
Claims (2)
1, a kind of composite stainless steel pipe is characterized in that: it comprises the inside and outside two-layer stainless steel tube of different steel grades, and stainless steel outer tube (1) is coated on the stainless steel inner tube (2), and they are pressed into as a whole.
2, a kind of composite stainless steel pipe according to claim 1 is characterized in that: the cross section of stainless steel outer tube (1), stainless steel inner tube (2) is multiple geometry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720078242 CN200995508Y (en) | 2007-01-17 | 2007-01-17 | Composite stainless-steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720078242 CN200995508Y (en) | 2007-01-17 | 2007-01-17 | Composite stainless-steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200995508Y true CN200995508Y (en) | 2007-12-26 |
Family
ID=38993935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720078242 Expired - Fee Related CN200995508Y (en) | 2007-01-17 | 2007-01-17 | Composite stainless-steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200995508Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150040398A1 (en) * | 2013-08-07 | 2015-02-12 | Ass Wsi Llc | Flat bar and method of making same |
-
2007
- 2007-01-17 CN CN 200720078242 patent/CN200995508Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150040398A1 (en) * | 2013-08-07 | 2015-02-12 | Ass Wsi Llc | Flat bar and method of making same |
| US9724742B2 (en) * | 2013-08-07 | 2017-08-08 | Azz Wsi Llc | Method of forming flat bar |
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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: 20071226 Termination date: 20120117 |