CN102109072A - Corrugated metal pipe - Google Patents
Corrugated metal pipe Download PDFInfo
- Publication number
- CN102109072A CN102109072A CN2009102647316A CN200910264731A CN102109072A CN 102109072 A CN102109072 A CN 102109072A CN 2009102647316 A CN2009102647316 A CN 2009102647316A CN 200910264731 A CN200910264731 A CN 200910264731A CN 102109072 A CN102109072 A CN 102109072A
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- CN
- China
- Prior art keywords
- stainless steel
- metal pipe
- corrugated metal
- cmp
- layer
- 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.)
- Pending
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- Rigid Pipes And Flexible Pipes (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention provides a corrugated metal pipe (CMP). The CMP comprises crests and troughs, and is formed by combining an outer layer, a middle layer and an inner layer, wherein the outer layer and the middle layer are made of 316 austenitic stainless steel; and the inner layer is made of duplex stainless steel. The CMP has the benefits that the product structure is simple, the marine corrosion-resistant performance is excellent, and the service life is long.
Description
Technical field
The present invention relates to a kind of bellows, especially a kind of metal bellows.
Background technique
Use the metal bellows at seawater pipeline at present, generally adopt 316 austenitic stainless steel materials, but there is point corrosion in 316 Austenitic Stainless Steels in seawater, working life is short.Domestic also have the two phase stainless steel of employing as the bellows material, though sea water corrosion resistant is good, price is too expensive, and the general user holds and can't stand.
Summary of the invention
In order to overcome not seawater corrosion resistance of existing 316 austenite stainless corrugated steel pipes, working life is short, and the deficiency that two-phase stainless corrugated steel pipe price is too expensive the invention provides a kind of metal bellows.
The technical solution adopted for the present invention to solve the technical problems is a kind of metal bellows, comprises crest, trough, is combined by skin, middle level and internal layer, and outer and middle layer material is an Austenitic Stainless Steel, and inner layer material is a two phase stainless steel.
The invention has the beneficial effects as follows that product structure is simple, sea water corrosion resistant is good, long service life.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is embodiment's a tectonic maps;
Among the figure: 1. crest; 2. trough; 3. outer; 4. middle level; 5. internal layer.
Embodiment
As shown in Figure 1, a kind of metal bellows comprises crest 1, trough 2, is combined by skin 3, middle level 4 and internal layer 5, and skin 3 and middle level 4 materials are 316 Austenitic Stainless Steels, and internal layer 5 materials are two phase stainless steel.Adopt complex form, provide cost savings greatly.
Claims (1)
1. a metal bellows comprises crest, trough, is combined by skin, middle level and internal layer, it is characterized in that: described skin and middle layer material are Austenitic Stainless Steel, and described inner layer material is a two phase stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102647316A CN102109072A (en) | 2009-12-29 | 2009-12-29 | Corrugated metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102647316A CN102109072A (en) | 2009-12-29 | 2009-12-29 | Corrugated metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102109072A true CN102109072A (en) | 2011-06-29 |
Family
ID=44173311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102647316A Pending CN102109072A (en) | 2009-12-29 | 2009-12-29 | Corrugated metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102109072A (en) |
-
2009
- 2009-12-29 CN CN2009102647316A patent/CN102109072A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110629 |