CN106764110A - A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method - Google Patents
A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method Download PDFInfo
- Publication number
- CN106764110A CN106764110A CN201710132908.1A CN201710132908A CN106764110A CN 106764110 A CN106764110 A CN 106764110A CN 201710132908 A CN201710132908 A CN 201710132908A CN 106764110 A CN106764110 A CN 106764110A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- pipeline
- matrix
- outside
- steel plate
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
- F16L9/04—Reinforced pipes
- F16L9/042—Reinforced pipes the reinforcement comprising one or more layers of a helically wound cord, wire or strip
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
Abstract
The invention belongs to plumbing equipment field, more particularly to a kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method, including the pipeline matrix that carbon steel is made, stainless steel inner lining layer is provided with the inside of described pipeline matrix, stainless steel coating layer is provided with the outside of pipeline matrix.Described stainless steel inner lining layer is made up of gapless stainless steel tube.Described stainless steel coating layer is formed by the stainless steel plate of strip along described pipeline matrix spiral winding, after the completion of stainless steel plate winding, a spiral helicine seam can be formed in the outside of stainless steel coating layer, with a stainless steel strip along described seam spiral winding so as to seam be covered.Present invention employs brand-new pipeline corrosion protection structure, anticorrosive coat is used as using stainless steel material by inside and outside pipeline matrix, not only effectively improves the antiseptic property of pipeline, and greatly reduced the technology difficulty of pipeline connection and shorten construction period.
Description
Technical field
The invention belongs to plumbing equipment field, more particularly to a kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and
Its manufacture method.
Background technology
Water supply and sewerage pipeline is a kind of equipment for liquid transportation commonly used in the field such as municipal works and industrial production.Existing skill
The water supply and sewerage pipeline used in art is made by common carbon steel, because the corrosion resistance of this material is poor, it is therefore desirable to right
Water supply and sewerage pipeline carries out preservative treatment.In the prior art, the outside of water supply and sewerage pipeline generally uses three layers of PE anticorrosion structures：First
Layer epoxy powder (FBE ＞ 100um)；Second layer adhesive (AD) 170~250um；Third layer polyethylene (PE) 2.5~3.7mm.
Three kinds of materials are combined together, and the external anti-corrosion layer of pipeline is formed with steel pipe strong bonded.The inner side of water supply and sewerage pipeline generally uses
The mode for spraying epoxy powder carries out anti-corrosion.However, above-mentioned corrosion-proof technology for pipeline exist shorter service life, abrasion-resistance and
The problem of the resistance to light difference that wears no resistance.In addition, when being welded to the anti-corrosion pipeline using said structure, welding high temperature meeting
The inside and outside anticorrosive coating of pipeline is destroyed, the pipeline after construction anti-corrosion short slab is occurred, and then substantially reduce the overall anti-corrosive properties of pipeline
Can, in order to solve this problem, it is necessary to two junctions of pipeline are carried out with the anticorrosion process treatment of complexity, therefore, technique is difficult
Degree is big, long construction period.
The content of the invention
The present invention provides a kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method, it is therefore intended that：It is logical
Cross and pipeline corrosion protection structure of the prior art is improved, realize extension pipeline service life, reduce pipeline construction technique hardly possible
Degree and the effect in shortening pipeline construction cycle.
Technical problem solved by the invention is to be achieved through the following technical solutions：
The present invention provides a kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline, including the pipeline matrix that carbon steel is made,
Stainless steel inner lining layer is provided with the inside of described pipeline matrix, stainless steel coating layer is provided with the outside of pipeline matrix, in pipe
On the end face in road, stainless steel inner lining layer and stainless steel coating layer are weldingly connected with pipeline matrix.
Described stainless steel inner lining layer is made up of gapless stainless steel tube.Described stainless steel coating layer by strip stainless steel
Plate is formed along described pipeline matrix spiral winding, after the completion of stainless steel plate winding, can be in the outside shape of stainless steel coating layer
Into a spiral helicine seam, with a stainless steel strip along described seam spiral winding so as to seam be covered, it is described not
Rust steel bar is fixed on described seam crossing by stainless steel bonded adhesives.Bar is provided with the both sides of the edge of described stainless steel plate
Shape is raised, and the length direction of strip projected parts is parallel with the side of stainless steel plate.Described stainless steel plate and stainless steel strip spiral is twined
Around when lead angle be 15-25 °, the width of stainless steel plate is 50-60cm.
Present invention also offers a kind of manufacture method of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline, the method is used for
The inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline as described in foregoing any claim is manufactured, the method includes following step
Suddenly：
A, a pipeline matrix and a gapless stainless steel tube are taken, gapless stainless steel tube is inserted into pipeline matrix, pipeline base
The internal diameter of body is gap fit dimension with the external diameter of gapless stainless steel tube；
After B, the two ends sealing by end cover by gapless stainless steel tube, by the water filling port on end cap in annular seal space
Injection water under high pressure, under the pressure effect of water under high pressure, gapless stainless steel tube outwards extends expansion, so as to be attached to pipeline matrix
On inwall, can be sealed using grafting between end cover and gapless stainless steel tube, also sealing can be compressed using end face.
C, one end of one end of the stainless steel plate of strip and pipeline matrix is weldingly connected, then rotated pipe matrix, from
And stainless steel plate is spirally wound on the outside of pipeline matrix, it is after the completion of stainless steel plate winding, it is another with pipeline matrix
End is weldingly connected, and completes the winding working procedure of stainless steel plate；
D, by stainless steel strip along the seam spiral winding on the outside of stainless steel coating layer, while winding, in stainless steel strip
Stainless steel bonded adhesives is filled and stainless steel plate between；
E, the two ends of pipeline are rested and reorganized with cutting tool and milling tools, make its smooth, so far complete all manufactures
Process.
Beneficial effects of the present invention are：Present invention employs brand-new pipeline corrosion protection structure, by pipeline matrix
Outer both sides, as anticorrosive coat, not only effectively improve the antiseptic property of pipeline, and greatly reduce pipe using stainless steel material
The technology difficulty of road connection simultaneously shortens construction period.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the partial enlarged drawing at A in Fig. 1；
Fig. 3 is the view in transverse section of described stainless steel plate.
In figure：1- pipeline matrixes, 2- stainless steel coating layers, 3- stainless steel inner linings layer, 4- strip projected parts, 5- stainless steel strips,
6- circular welds, 7- end covers, 8- water filling ports, 9- seams.
Specific embodiment
The present invention is described further below in conjunction with accompanying drawing：
Embodiment：
A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline of the present invention, the pipe that its structure is made including carbon steel
Road matrix 1, the inner side of described pipeline matrix 1 is provided with stainless steel inner lining layer 3, and the outside of pipeline matrix 1 is provided with stainless steel
Clad 2, on the end face of pipeline, stainless steel inner lining layer 3 and stainless steel coating layer 2 are weldingly connected with pipeline matrix 1, weld
Place forms the circular weld 6 of full weld.
The present invention uses stainless steel material as anticorrosive coat inside and outside pipeline, can be to entering inside and outside pipeline
The reliable anti-corrosion of row, compared with using three PE anticorrosion structures, not only with more preferable wearability and resistance to ag(e)ing, and construction work
Skill is simpler, and construction is time-consuming shorter, in hgher efficiency.Specifically：
1st, compared with PE materials, stainless steel will not be aging with the increase of service life, also will not sunlight again irradiation
Under it is aging, therefore, the service life of stainless steel anticorrosive coat is longer.
2nd, compared with PE materials, stainless steel has hardness higher, therefore with more preferable erosive wear resistance, so as to enter one
Step improves the service life of anticorrosive coat.
3rd, compared with PE materials, stainless steel has more preferable corrosion resistance (in fact, corrosion resistance is stainless steel material
Most important performance), so as to further improve the service life of anticorrosive coat.
4th, the PROCESS FOR TREATMENTs such as carburizing, surfacing are carried out by the surface to stainless steel, the corrosion-resistant of stainless steel surfaces can be improved
Property and hardness so that further improve stainless steel anticorrosive coat anti-wear performance and erosive wear resistance.
5th, it is necessary to the pipeline welding of the full-length that length is 12 meters is connected during pipeline construction.Using three PE anti-corrosion knots
During structure, weld the high temperature that produces can scaling loss anticorrosive coat (inside and outside anticorrosive coating all can scaling loss), in order to avoid occurring in pipeline junction
The short slab of antiseptic property is, it is necessary to carry out single preservative treatment from inside and outside pipeline at butt welding mouth, and this preservative treatment
Not only complex process, technical difficulty is big, and the activity duration is long, has seriously dragged slowly efficiency of construction.It is different from PE materials, it is stainless
Steel has resistant to elevated temperatures feature, thus will not be burnt in welding, the destroyed problem of anticorrosive coat would not also occurs.Cause
This, using stainless steel as anticorrosive coat can effectively reduce pipeline connect when process complexity and difficulty of construction, also can be significantly
Shorten the activity duration, improve operating efficiency.
Described stainless steel inner lining layer 3 is made up of gapless stainless steel tube.Gapless stainless steel tube ensure that stainless steel inner lining layer 3
Side wall on there is no gap, so as to ensure that the integrality of interior anticorrosive coat, eliminate anti-corrosion short slab.
Described stainless steel coating layer 2 is formed by the stainless steel plate of strip along the described spiral winding of pipeline matrix 1, no
The structure type of this winding of rust ladle coating 2 has the advantages that other structures form is incomparable：
The technological principle of this structure type is：One end of the stainless steel plate of strip is first welded on the one of pipeline matrix 1
End, then makes the stainless steel plate of strip be wrapped in the outside of pipeline matrix 1 by rotating pipe matrix 1, and stainless steel plate has wound
Cheng Hou, it is weldingly connected with the other end of pipeline matrix 1, so as to complete the winding working procedure of stainless steel plate, forms stainless ladle
Coating 2.When continuously being produced, repetition " welding --- winding --- is welded " these three work steps are only needed to be capable of achieving quick life
Produce, compared with other structures form, production efficiency is greatly improved.
After the completion of stainless steel plate winding, a spiral helicine seam 9 can be formed in the outside of stainless steel coating layer 2, with one
Along the described spiral winding of seam 9 so as to seam 9 be covered, described stainless steel strip 5 is bonded stainless steel strip 5 by stainless steel
Glue is fixed at described seam 9.Either when pipeline is connected, or in broken pipe repair process, on anticorrosive coat
There is anti-corrosion clear area to be required to carry out single preservative treatment, the handling process for using in the prior art is to smear epoxy resin
Or other anti-corrosion materials, this handling process the disadvantage is that, pipeline is in itself metal material, and the anti-corrosion material such as epoxy resin
It is non-metallic material, adhesive strength during the two bonding is difficult to ensure that, after especially tangible pipeline rising-heat contracting-cold, it is easier to occur mending
Plus the problem that anticorrosive coat departs from itself with pipeline, so as to influence corrosion-resistant validity.And in the present invention, as anti-corrosion clear area
Seam 9 at do not use process of the prior art, but using stainless steel strip 5 as adding corrosion-resistant material,
Stainless steel strip 5 is iron and steel material quality in itself with pipeline, therefore the two thermal stretching rate is also very close, meanwhile, stainless steel bonded adhesives
Adhesive strength it is much bigger compared with epoxy resin, therefore, using being sealed at the abutment joint 9 of stainless steel strip 5, be not in
The problem that the anti-corrosion material added departs from itself with pipeline.In addition, stainless steel strip 5 is wound around on pipeline, this causes stainless steel
Bar 5 is braced in the outside of pipeline, the difficulty that stainless steel strip 5 departs from pipeline is further increased, so as to prevent anti-corrosion clear area
Occur again.
Be provided with strip projected parts 4 at the both sides of the edge of described stainless steel plate, the length direction of strip projected parts 4 with it is stainless
The side of steel plate is parallel.The effect of strip projected parts 4 has two, on the one hand, strip projected parts 4 can be when pipeline be produced to stainless steel strip
5 installation is guided, and is easy to the Fast Installation of stainless steel strip 5, so that improve production efficiency；On the other hand, strip projected parts 4 can
Stainless steel strip 5 is formed in transhipment, movement and installation process in pipeline is protected, prevent stainless steel strip 5 from being collided with damage.
In actual production, it is necessary to by the lead angle limitation of stainless steel plate and stainless steel strip 5 within the specific limits, former
Because being：If lead angle is excessive, the length of seam 9 is long, can increase man-hour when seam 9 is processed；If lead angle mistake
Greatly, then difficulty of construction during winding stainless steel plate can be increased, therefore, lead angle is set in the present invention 15-25 ° of scope
It is interior, the width of stainless steel plate is set in the range of 50-60cm.
Present invention also offers a kind of manufacture method of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline, the method is used for
The inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline as described in foregoing any claim is manufactured, the method includes following step
Suddenly：
A, a pipeline matrix 1 and a gapless stainless steel tube are taken, gapless stainless steel tube is inserted into pipeline matrix 1, pipeline
The internal diameter of matrix 1 is gap fit dimension with the external diameter of gapless stainless steel tube.Gap fit dimension by pipeline matrix 1 and it is seamless not
The fit clearance of rust steel pipe is limited in the dimensional fits margin of tolerance of the tolerance fit table of standard, so that the two can enter
Row insertion coordinates, and does not have very big fit clearance, so as to reduce the difficult sealing between end cover 7 and gapless stainless steel tube
Degree.
B, after end cover 7 seals the two ends of gapless stainless steel tube, by the water filling port 8 on end cover 7 to
Injection water under high pressure in annular seal space, under the pressure effect of water under high pressure, gapless stainless steel tube outwards extends expansion, so as to be attached to pipe
On the inwall of road matrix 1, stainless steel inner lining layer 3 is formed.Being acted on by the pressure of water makes gapless stainless steel tube be attached to pipeline base
On the inwall of body 1, technological principle and tooling device are all very simple, the adhesive strength of stainless steel inner lining layer 3 and pipeline matrix 1
Can guarantee that.Can be sealed using grafting between end cover 7 and gapless stainless steel tube, also sealing can be compressed using end face.
C, one end of one end of the stainless steel plate of strip and pipeline matrix 1 is weldingly connected, then rotated pipe matrix 1,
So that stainless steel plate is spirally wound on the outside of pipeline matrix, it is after the completion of stainless steel plate winding, it is another with pipeline matrix 1
One end is weldingly connected, so as to complete the winding working procedure of stainless steel plate, forms stainless steel coating layer 2.Described stainless steel coating layer 2
Formed along the described spiral winding of pipeline matrix 1 by the stainless steel plate of strip, during production, first by the one of the stainless steel plate of strip
End is welded on one end of pipeline matrix 1, then the stainless steel plate of strip is wrapped in pipeline matrix 1 by rotating pipe matrix 1
Outside, stainless steel plate winding after the completion of, it is weldingly connected with the other end of pipeline matrix 1, so as to complete stainless steel plate
Winding working procedure, forms stainless steel coating layer 2.When continuously being produced, only need to repeat " welding --- winding --- welding " this three
Individual work step is to be capable of achieving quick production, and compared with other structures form, production efficiency is greatly improved.
D, by stainless steel strip 5 along the outside of stainless steel coating layer 2 the spiral winding of seam 9, while winding, in stainless steel
Stainless steel bonded adhesives is filled between bar 5 and stainless steel plate, so as to stainless steel strip 5 to be bonded in the outside of stainless steel coating layer 2.
E, the two ends of pipeline are rested and reorganized with cutting tool and milling tools, make its smooth, so far complete all manufactures
Process.
Present invention employs brand-new pipeline corrosion protection structure, by using stainless steel inside and outside pipeline matrix 1
Material not only effectively improves the antiseptic property of pipeline as anticorrosive coat, and greatly reduces the technology difficulty of pipeline connection simultaneously
Shorten construction period.
Claims (3)
1. a kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline, including the pipeline matrix (1) that carbon steel is made, its feature exists
In：Stainless steel inner lining layer (3) is provided with the inside of described pipeline matrix (1), pipeline matrix is provided with stainless steel on the outside of (1)
Clad (2), on the end face of pipeline, stainless steel inner lining layer (3) and stainless steel coating layer (2) are welded with pipeline matrix (1)
Be connected, described stainless steel inner lining layer (3) is made up of gapless stainless steel tube, described stainless steel coating layer (2) by strip not
Rust steel plate is formed along described pipeline matrix (1) spiral winding, after the completion of stainless steel plate winding, can be in stainless steel coating layer
(2) outside forms a spiral helicine seam (9), with a stainless steel strip (5) along described seam (9) spiral winding so as to
By seam (9) covering, described stainless steel strip (5) is fixed on described seam (9) place by stainless steel bonded adhesives, it is described not
Strip projected parts (4) are provided with the both sides of the edge of rust steel plate, the length direction of strip projected parts (4) is put down with the side of stainless steel plate
OK.
2. a kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline according to claim 1, it is characterised in that：Described
Lead angle when stainless steel plate and stainless steel strip (5) spiral winding is 15-25 °, and the width of stainless steel plate is 50-60cm.
3. a kind of manufacture method of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline, the method is used to manufacture such as foregoing any power
Profit requires described inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline, and its spy is being to comprise the following steps：
A, a pipeline matrix (1) and a gapless stainless steel tube are taken, gapless stainless steel tube is inserted into pipeline matrix (1), pipeline
The internal diameter of matrix (1) is gap fit dimension with the external diameter of gapless stainless steel tube；
After B, the two ends sealing by end cover (7) by gapless stainless steel tube, by the water filling port (8) on end cover (7)
To injecting water under high pressure in annular seal space, under the pressure effect of water under high pressure, gapless stainless steel tube outwards extends expansion, so as to be attached to
On the inwall of pipeline matrix (1), so as to form stainless steel inner lining layer (3), end cover (7) can be adopted and gapless stainless steel tube between
Sealed with grafting, also sealing can be compressed using end face；
C, one end of one end of the stainless steel plate of strip and pipeline matrix (1) is weldingly connected, then rotated pipe matrix (1),
So that stainless steel plate is spirally wound on the outside of pipeline matrix, after the completion of stainless steel plate winding, by itself and pipeline matrix (1)
The other end is weldingly connected, so as to complete the winding working procedure of stainless steel plate, forms stainless steel coating layer (2)；
D, by stainless steel strip (5) along seam (9) spiral winding on the outside of stainless steel coating layer (2), while winding, stainless
Steel bar (5) fills stainless steel bonded adhesives and stainless steel plate between, so as to stainless steel strip (5) is bonded in into stainless steel coating layer (2)
Outside；
E, the two ends of pipeline are rested and reorganized with cutting tool and milling tools, make its smooth, so far complete whole manufacturing processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132908.1A CN106764110A (en) | 2017-03-08 | 2017-03-08 | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132908.1A CN106764110A (en) | 2017-03-08 | 2017-03-08 | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106764110A true CN106764110A (en) | 2017-05-31 |
Family
ID=58962841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710132908.1A Pending CN106764110A (en) | 2017-03-08 | 2017-03-08 | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106764110A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108890235A (en) * | 2018-08-22 | 2018-11-27 | 江苏众信绿色管业科技有限公司 | A kind of steel lining stainless steel channel member and its manufacturing method |
| CN111828777A (en) * | 2020-06-29 | 2020-10-27 | 新兴铸管股份有限公司 | Processing method of pipeline anticorrosive coating |
| CN113108127A (en) * | 2021-04-29 | 2021-07-13 | 北京市政建设集团有限责任公司 | Pipe manufacturing process applied to sewage pipeline transformation |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04282220A (en) * | 1991-03-12 | 1992-10-07 | Sekisui Chem Co Ltd | Composite pipe and manufacture thereof |
| CN201133519Y (en) * | 2007-11-27 | 2008-10-15 | 天津市雪琰管业有限公司 | Stainless steel and carbon steel-glass fibre reinforced plastic composite pipeline |
| CN101440899A (en) * | 2008-12-18 | 2009-05-27 | 李长城 | Stainless steel fiber reinforced plastic pipeline and producing process thereof |
| CN101907206A (en) * | 2010-06-13 | 2010-12-08 | 河北拓安管业有限公司 | Steel-belt occlusion welding plastic-coated composite pipe and preparation method thereof |
| CN102159337A (en) * | 2008-12-19 | 2011-08-17 | 现代Hysco株式会社 | Multi-layer tube using high-pressure tube-hydroforming and manufacturing method thereof |
| CN103115199A (en) * | 2013-02-21 | 2013-05-22 | 江苏宏宝集团有限公司 | Anti-collision stainless composite tube |
| CN103727318A (en) * | 2013-12-23 | 2014-04-16 | 山西中通管业有限公司 | Special stainless steel coal-mine gas drainage pipe with reinforcing rib |
| CN104019289A (en) * | 2014-06-23 | 2014-09-03 | 谢志树 | Composite stainless steel pipe and manufacturing method for same |
| CN203892733U (en) * | 2014-05-23 | 2014-10-22 | 李长城 | Helical weld pipe in stainless steel structure |
| CN104266006A (en) * | 2014-09-18 | 2015-01-07 | 南京联众建设工程技术有限公司 | Spiral steel pipe with reinforcing rings and manufacturing method of spiral steel pipe |
| CN206513955U (en) * | 2017-03-08 | 2017-09-22 | 大庆新管科技有限公司 | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline |
-
2017
- 2017-03-08 CN CN201710132908.1A patent/CN106764110A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04282220A (en) * | 1991-03-12 | 1992-10-07 | Sekisui Chem Co Ltd | Composite pipe and manufacture thereof |
| CN201133519Y (en) * | 2007-11-27 | 2008-10-15 | 天津市雪琰管业有限公司 | Stainless steel and carbon steel-glass fibre reinforced plastic composite pipeline |
| CN101440899A (en) * | 2008-12-18 | 2009-05-27 | 李长城 | Stainless steel fiber reinforced plastic pipeline and producing process thereof |
| CN102159337A (en) * | 2008-12-19 | 2011-08-17 | 现代Hysco株式会社 | Multi-layer tube using high-pressure tube-hydroforming and manufacturing method thereof |
| CN101907206A (en) * | 2010-06-13 | 2010-12-08 | 河北拓安管业有限公司 | Steel-belt occlusion welding plastic-coated composite pipe and preparation method thereof |
| CN103115199A (en) * | 2013-02-21 | 2013-05-22 | 江苏宏宝集团有限公司 | Anti-collision stainless composite tube |
| CN103727318A (en) * | 2013-12-23 | 2014-04-16 | 山西中通管业有限公司 | Special stainless steel coal-mine gas drainage pipe with reinforcing rib |
| CN203892733U (en) * | 2014-05-23 | 2014-10-22 | 李长城 | Helical weld pipe in stainless steel structure |
| CN104019289A (en) * | 2014-06-23 | 2014-09-03 | 谢志树 | Composite stainless steel pipe and manufacturing method for same |
| CN104266006A (en) * | 2014-09-18 | 2015-01-07 | 南京联众建设工程技术有限公司 | Spiral steel pipe with reinforcing rings and manufacturing method of spiral steel pipe |
| CN206513955U (en) * | 2017-03-08 | 2017-09-22 | 大庆新管科技有限公司 | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108890235A (en) * | 2018-08-22 | 2018-11-27 | 江苏众信绿色管业科技有限公司 | A kind of steel lining stainless steel channel member and its manufacturing method |
| CN108890235B (en) * | 2018-08-22 | 2023-05-05 | 江苏众信绿色管业科技有限公司 | Steel lining stainless steel groove part and manufacturing method thereof |
| CN111828777A (en) * | 2020-06-29 | 2020-10-27 | 新兴铸管股份有限公司 | Processing method of pipeline anticorrosive coating |
| CN111828777B (en) * | 2020-06-29 | 2022-07-12 | 新兴铸管股份有限公司 | Processing method of pipeline anticorrosive coating |
| CN113108127A (en) * | 2021-04-29 | 2021-07-13 | 北京市政建设集团有限责任公司 | Pipe manufacturing process applied to sewage pipeline transformation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103008988B (en) | The method of internal joint patch weldering exempted from by a kind of anticorrosive steel pipeline | |
| CN106764110A (en) | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline and its manufacture method | |
| CN203500680U (en) | Bimetal composite pipe with stainless steel pipe connector and two staggered double-welding layers | |
| CN103322364B (en) | The connecting means of internal and external anti-corrosive steel-plastic composite pipe | |
| CN103148734B (en) | A kind of exchanger tubes and tubesheets syndeton of preventing shell side side clearance to corrode | |
| CN101225913B (en) | Method for joining novel bilayer structure pipeline and uses | |
| CN206513955U (en) | A kind of inside and outside bilateral stainless steel corrosion-resistant water supply and sewerage pipeline | |
| CN103912740B (en) | Nondestructive welding joint for long-distance pipeline steel pipe with inner coating | |
| CN107052710A (en) | A kind of undercoating pipeline manufacture method | |
| CN104075047A (en) | Tungsten alloy plated pipeline welding port connecting method | |
| CN105276336A (en) | Welding pipeline internal corrosion prevention method and pipeline used for method | |
| CN203230975U (en) | Pipeline connection device | |
| CN203413252U (en) | Device for connecting inner and outer anticorrosive steel plastic composite pipes | |
| CN106439249A (en) | Water supply and drainage anticorrosion steel pipe and manufacture technique and connection structure for same | |
| CN204278677U (en) | The wear-resistant reinforcement recovery layer of a kind of section tube | |
| CN206973094U (en) | A kind of steel pipe two-part exempts from the dead mouth of interior corrosion-resistanting interpolating port and connects head assembly | |
| CN205745709U (en) | Inside and outside plastic-coated composite bimetal pipe | |
| CN201615318U (en) | Metal anti-corrosion pipeline connector | |
| CN205978860U (en) | Compound pipe of two rubber circle socket joint formula steel pipe concrete | |
| CN211101722U (en) | Pipeline under-pressure tapping device and plugging device | |
| CN208687135U (en) | The connection structure of corrosion-proof pipe line | |
| CN203230984U (en) | Flange type lining pipeline connecting device | |
| KR102581050B1 (en) | Menufacturing method coated clad pipe for water work | |
| CN202646989U (en) | Pipe connector assembly and safe locking pipeline connecting system comprising same | |
| RU55920U1 (en) | COMBINED TEE TEE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |