CN202955416U - Composite nodular cast iron pipe - Google Patents
Composite nodular cast iron pipe Download PDFInfo
- Publication number
- CN202955416U CN202955416U CN 201220623135 CN201220623135U CN202955416U CN 202955416 U CN202955416 U CN 202955416U CN 201220623135 CN201220623135 CN 201220623135 CN 201220623135 U CN201220623135 U CN 201220623135U CN 202955416 U CN202955416 U CN 202955416U
- Authority
- CN
- China
- Prior art keywords
- iron pipe
- cast iron
- nodular cast
- thin
- stainless steel
- 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
- 229910001141 Ductile iron Inorganic materials 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 18
- 239000010935 stainless steel Substances 0.000 claims abstract description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 9
- 239000011701 zinc Substances 0.000 claims abstract description 9
- 239000011527 polyurethane coating Substances 0.000 claims abstract description 7
- 239000011241 protective layer Substances 0.000 claims abstract description 5
- 239000004698 Polyethylene Substances 0.000 claims abstract description 4
- -1 polyethylene Polymers 0.000 claims abstract description 4
- 229920000573 polyethylene Polymers 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910001018 Cast iron Inorganic materials 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 230000002421 anti-septic effect Effects 0.000 abstract description 2
- 239000011247 coating layer Substances 0.000 abstract 2
- 239000010410 layer Substances 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Images
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model discloses a composite nodular cast iron pipe. The composite nodular cast iron pipe comprises a nodular cast iron pipe base body, a metal zinc coating layer which is covered on the outer wall of the nodular cast iron pipe base body, and a polyethylene protective layer which is covered on the metal zinc coating layer. A thin-wall stainless steel pipe is arranged inside the nodular cast iron pipe base body, a polyurethane coating layer is filled between the nodular cast iron pipe base body and the thin-wall stainless steel pipe, and the thickness of the thin-wall stainless steel pipe is 1-2 mm. According to the composite nodular cast iron pipe, the thin-wall stainless steel pipe is arranged inside the nodular cast iron pipe base body, and the polyurethane coating layer is filled between the nodular cast iron pipe base body and the thin-wall stainless steel pipe, so that the composite nodular cast iron pipe is suitable for transferring liquid of high corrosiveness or liquid with high sanitary requirements. In addition, the outer wall of the nodular cast iron pipe is processed by antiseptic treatment, so that the composite nodular cast iron pipe is suitable for being used in the humid environment and the like.
Description
Technical field
The utility model belongs to metal tube manufacture field, is specifically related to a kind of ductile iron pipe.
Background technique
Ductile iron pipe has the essence of iron, the performance of steel, and antiseptic property is excellent, ductility is good, good sealing effect, install simple and easy, be mainly used in municipal administration, industrial and mining enterprise's feedwater, gas transmission, oil transportation etc.General ductile iron pipe is to using the zinc protective layer to add the sealing corrosion protective covering as the composite protective system, and this is the protective system that a kind of sacrificial anode adds cathodic protection, has advantages of anticorrosion year limit for length, all over the world, is used widely.But its inwall is easy to be corroded when using ductile iron pipe to carry the large liquid of corrosivity.
Summary of the invention
The purpose of this utility model is to overcome above shortcoming, and a kind of ductile iron pipe that can have stronger Corrosion Protection is provided.
Compounded nodular graphite cast iron pipe of the present utility model, comprise the ductile iron pipe matrix, is enclosed in the metallic zinc coating of ductile iron pipe matrix outer wall, is enclosed in the outer polyethylene protective layer of metallic zinc coating; Ductile iron pipe matrix inside is provided with a thin-wall stainless steel steel pipe, between graphite cast iron pipe matrix and thin-wall stainless steel steel pipe, is filled with polyurethane coating.
As optimization, described thin-wall stainless steel steel pipe thickness is 1-2mm.
Be provided with the thin-wall stainless steel steel pipe in compounded nodular graphite cast iron pipe of the present utility model, be filled with polyurethane coating between graphite cast iron pipe matrix and thin-wall stainless steel steel pipe, its be suitable for carrying corrosivity large or to hygienic requirements high liquid, this ductile iron pipe outer wall has carried out preservative treatment in addition, is suitable for moist the grade under environment and uses.
The accompanying drawing explanation
The structural representation of the described compounded nodular graphite cast iron pipe of Fig. 1 embodiment.
Embodiment
Introduce in detail embodiment of the present utility model below in conjunction with accompanying drawing.
The compounded nodular graphite cast iron pipe, as shown in Figure 1, comprise ductile iron pipe matrix 1, is enclosed in the metallic zinc coating 2 of ductile iron pipe matrix outer wall, is enclosed in the outer polyethylene protective layer 3 of metallic zinc coating 2; Ductile iron pipe matrix 1 inside is provided with a thin-wall stainless steel steel pipe 4, between graphite cast iron pipe matrix 1 and thin-wall stainless steel steel pipe 4, is filled with polyurethane coating 5.Thin-wall stainless steel steel pipe 4 thickness are set to 1-2mm.
Be provided with the thin-wall stainless steel steel pipe in this compounded nodular graphite cast iron pipe, be filled with polyurethane coating between graphite cast iron pipe matrix and thin-wall stainless steel steel pipe, its be suitable for carrying corrosivity large or to hygienic requirements high liquid, this ductile iron pipe outer wall has carried out preservative treatment in addition, is suitable for moist the grade under environment and uses.
Claims (2)
1. a compounded nodular graphite cast iron pipe, comprise the ductile iron pipe matrix, is enclosed in the metallic zinc coating of ductile iron pipe matrix outer wall, is enclosed in the outer polyethylene protective layer of metallic zinc coating; It is characterized in that described ductile iron pipe matrix inside is provided with a thin-wall stainless steel steel pipe, is filled with polyurethane coating between graphite cast iron pipe matrix and thin-wall stainless steel steel pipe.
2. ductile iron pipe according to claim 1, is characterized in that described thin-wall stainless steel steel pipe thickness is 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623135 CN202955416U (en) | 2012-11-23 | 2012-11-23 | Composite nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623135 CN202955416U (en) | 2012-11-23 | 2012-11-23 | Composite nodular cast iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202955416U true CN202955416U (en) | 2013-05-29 |
Family
ID=48460988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220623135 Expired - Fee Related CN202955416U (en) | 2012-11-23 | 2012-11-23 | Composite nodular cast iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202955416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089106A (en) * | 2014-07-02 | 2014-10-08 | 新兴铸管股份有限公司 | Ductile iron pipe with corrosion-resistant performance and manufacturing method thereof |
| WO2015019027A1 (en) * | 2013-08-09 | 2015-02-12 | Arkema France | Multilayer structure for a pipe |
-
2012
- 2012-11-23 CN CN 201220623135 patent/CN202955416U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015019027A1 (en) * | 2013-08-09 | 2015-02-12 | Arkema France | Multilayer structure for a pipe |
| FR3009516A1 (en) * | 2013-08-09 | 2015-02-13 | Arkema France | MULTILAYER STRUCTURE FOR A TUBE |
| CN104089106A (en) * | 2014-07-02 | 2014-10-08 | 新兴铸管股份有限公司 | Ductile iron pipe with corrosion-resistant performance and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202402815U (en) | Split mounting type concrete lined metal corrugated pipe | |
| CN202955416U (en) | Composite nodular cast iron pipe | |
| CN101514768A (en) | Novel bimetal compound pipeline with high pressure resistance and high corrosion resistance | |
| MD243Y (en) | Inhibitor of steel corrosion in water | |
| CN201028165Y (en) | Polymer steel-plastic compound manometer tube used in coal mine well | |
| CN205226756U (en) | Flexible cast iron drain pipe based on technique of anticorrosiving | |
| CN208442402U (en) | A kind of high pressure resistant abrasion-proof stainless steel seamless pipe | |
| CN202808944U (en) | Antitheft bracelet type magnesium-base alloy anode | |
| CN202955348U (en) | Nodular cast iron pipe | |
| CN201739645U (en) | Chloroprene rubber anti-corrosion tube for ocean engineering | |
| CN204717235U (en) | A kind of anticorrosive composite steel tube | |
| CN202992416U (en) | Nodular cast iron pipe | |
| CN102878356A (en) | Durable seamless stainless steel tube | |
| CN204387507U (en) | A kind of buried galvanized pipe for drainage pipe and connection set thereof | |
| CN202451480U (en) | Corrosion-resistant hydraulic oil tank | |
| CN203948836U (en) | A kind of lining fluorine rubber joint | |
| CN201787274U (en) | Composite coated anti-corrosion steel pipe | |
| CN203963282U (en) | A kind of high-performance mechanical steel pipe | |
| CN205136846U (en) | Corrosion -resistant plastic tube material of high strength | |
| CN202927311U (en) | Clamping hoop | |
| CN202402819U (en) | Split mounting type metal bellow with flat-wall concrete liner | |
| CN203115324U (en) | Novel steel-plastic composite pipe | |
| CN205244646U (en) | Prevent interior bushing pipe of ultra high molecular polyethylene oil pipe who bursts apart | |
| CN201218386Y (en) | Pipeline lining anti-corrosion short joint device | |
| CN204328252U (en) | A kind of fluid-transporting tubing |
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: 20130529 Termination date: 20131123 |