CN2384085Y - Corrosion-resisting metal bellows - Google Patents
Corrosion-resisting metal bellows Download PDFInfo
- Publication number
- CN2384085Y CN2384085Y CN 99224069 CN99224069U CN2384085Y CN 2384085 Y CN2384085 Y CN 2384085Y CN 99224069 CN99224069 CN 99224069 CN 99224069 U CN99224069 U CN 99224069U CN 2384085 Y CN2384085 Y CN 2384085Y
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- corrosion
- bellows
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Abstract
The utility model relates to a corrosion resisting metal corrugated pipe of which the cross section can be designed into the shape of a U, an omega, an S, a V, etc. The utility model is characterized in that The inner wall and/or the outer wall of the corrugated pipe are provided with melting combination epoxy powdery coatings with the thicknesses of 0.3 mm to 1.2 mm. Under the precondition of guaranteeing favorable elastic property and compensating performance of the corrugated pipe, the utility model has the advantages of favorable corrosion resisting performance and low cost.
Description
The utility model relates to bellows, and a kind of corrosion resistant metal bellows is provided especially.
Metal bellows is the outstanding application of modern elasticity technology on pipeline, because its perfect adaptation aspect two of flexible and rigidity, in the application of pipeline, mainly contain aspect two, the one, realize valve seal with bellows, another kind is as the compensation mechanism in the rigid line.In general, the medium that pipeline transports has certain corrosive action than complicated to pipeline, and particularly buried pipeline is comparatively serious to the corrosion of pipeline for the external environment condition of pipeline in addition.Because the manufacturing deficiency of bellows is more, more common straight tube corrosion resistance is more weaker, is corrosion protection, has to adopt thick-walled structure, has so reduced the elasticity and the compensation ability of bellows again.In order to solve this contradiction, developed corrugated stainless steel tubing in a large number in recent years, but the too high problem of cost becomes very outstanding again.
The purpose of this utility model is to provide a kind of corrosion resistant metal bellows, and it has decay resistance preferably under the prerequisite that guarantees bellows favorable elasticity and compensation performance, and with low cost.
The utility model provides a kind of corrosion resistant metal bellows, its section design comprises shapes such as U type, Ω type, S type, V-type, it is characterized in that: the interior and/or outer wall of bellows (1) is provided with smelting combined epoxy powder coating layer (2), and thickness is 0.3～1.2mm.
The optimum thickness of the utility model floating coat (2) is 0.5～0.8mm.
Used corrosion-inhibiting coating is the commercially available prod in the utility model, and as the SEBF anticorrosive paint of Metal Corrosion and Protection Inst., Chinese Academy of Sciences's development and exploitation, it has following characteristics:
1. stable chemical performance, oil resistant, acidproof, alkaline-resisting, seawater corrosion resistance.
2. strong adhesion, excellent in cushion effect.
3. abrasion resistance properties good (in corrosive environment) is five times of cast iron.
4. serviceability temperature is extensive, is-40～150 ℃ in the air, is 0～100 ℃ in the solution, in the seawater 〉=and 100 ℃ (because experimental condition is only done seawater＞110 ℃ experiment).
5. the anticorrosive coat thickness range is at 30～3000 μ m, can carry out car, cuts, digs, machining such as mill.
6. anticorrosive coat even compact, smooth smooth, resistance is little, the efficiency of transmission height.
7. anticorrosive coat is nontoxic, tasteless, pollution-free.
8. long service life (according to the foreign data introduction, similar anticorrosive coat, safe operation is more than 30 years), price performance is much better than other process for protecting.
A layer thickness is anti-corrosion uniformly, wearing layer owing to employing high-performance adhere, thermosetting epoxy powder form at the metal surface of metal corrugated pipe expansion joint melting and solidification for the utility model, makes metal corrugated pipe expansion joint have stronger wear-corrosion resistance.Having overcome in the past, metal bellows has enlarged the scope of its application in the shortcoming of the occasion corrosion resistance difference of directly buried pipeline, conveying Korrosionsmedium.This bellows corrosion-resistant coating has high mechanical strength and impact resistance, good anti-corrosion, wear-resisting property, and prevent electrochemical corrosion.The utility model is specially adapted to make the expansion joint in the various metallic network of pipelines, compensator.Can be widely used in heat supply (hot water direct-burried pipe network), petrochemical industry, electric power, shipbuilding, cement, food sanitation and pharmaceutical industries.Below by embodiment in detail the utility model is described in detail.
Accompanying drawing 1 is a U type bellows schematic cross-section.
Accompanying drawing 2 is a Ω type bellows schematic cross-section.
Accompanying drawing 3 is a S type bellows schematic cross-section.
Accompanying drawing 4 is a V-type bellows schematic cross-section.
Embodiment 1
As shown in Figure 1, the inside and outside wall of U type bellows all scribbles SEBF coating (2), thickness 0.4mm.
As shown in Figure 2, Ω type bellows outer wall is coated with SEBF coating (2), thickness 0.8mm.
Embodiment 3
As shown in Figure 3, S type bellows inwall is coated with SEBF coating (2), thickness 0.8mm.
Embodiment 4
As shown in Figure 4, V-type bellows inside and outside wall is coated with SEBF coating (2), thickness 0.5mm.
Claims (2)
1. corrosion resistant metal bellows, its section design comprises shapes such as U type, Ω type, S type, V-type, and it is characterized in that: the interior and/or outer wall of bellows (1) is provided with smelting combined epoxy powder coating layer (2), and thickness is 0.3～1.2mm.
2. according to the described corrosion resistant metal bellows of claim 1, it is characterized in that: coating (2) thickness is 0.5～0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224069 CN2384085Y (en) | 1999-06-09 | 1999-06-09 | Corrosion-resisting metal bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224069 CN2384085Y (en) | 1999-06-09 | 1999-06-09 | Corrosion-resisting metal bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2384085Y true CN2384085Y (en) | 2000-06-21 |
Family
ID=34014192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99224069 Expired - Fee Related CN2384085Y (en) | 1999-06-09 | 1999-06-09 | Corrosion-resisting metal bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2384085Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323256C (en) * | 2002-09-06 | 2007-06-27 | 株式会社Ork | Metal bellows tube, method of producing the same, and flexible tube for high-pressure fluid |
| CN103578907A (en) * | 2013-11-04 | 2014-02-12 | 清华大学深圳研究生院 | Ion mobility spectrometry and compensation bent type iron drift tube thereof |
-
1999
- 1999-06-09 CN CN 99224069 patent/CN2384085Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323256C (en) * | 2002-09-06 | 2007-06-27 | 株式会社Ork | Metal bellows tube, method of producing the same, and flexible tube for high-pressure fluid |
| US7556065B2 (en) | 2002-09-06 | 2009-07-07 | Ork Corporation | Metal bellows tube, method of producing the same, and flexible tube for high-pressure fluid |
| CN103578907A (en) * | 2013-11-04 | 2014-02-12 | 清华大学深圳研究生院 | Ion mobility spectrometry and compensation bent type iron drift tube thereof |
| CN103578907B (en) * | 2013-11-04 | 2016-03-02 | 清华大学深圳研究生院 | Ionic migration spectrometer and compensation flexure type ion drift tube thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |