CN205956574U - Bimetal plastic -coated compound steel pipes convenient to welding - Google Patents
Bimetal plastic -coated compound steel pipes convenient to welding Download PDFInfo
- Publication number
- CN205956574U CN205956574U CN201620803764.9U CN201620803764U CN205956574U CN 205956574 U CN205956574 U CN 205956574U CN 201620803764 U CN201620803764 U CN 201620803764U CN 205956574 U CN205956574 U CN 205956574U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- outer tube
- stainless steel
- inner liner
- coating
- 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.)
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 238000003466 welding Methods 0.000 title claims abstract description 19
- 150000001875 compounds Chemical class 0.000 title abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 42
- 239000010935 stainless steel Substances 0.000 claims abstract description 42
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims description 20
- 238000005260 corrosion Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 238000009987 spinning Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model provides a bimetal plastic -coated compound steel pipes convenient to welding includes outer pipeline, divide and to locate the outer tube and say the nonrust steel pipes of inside lining of two end inner walls, the nonrust steel pipe of inside lining of two end inner walls in the outer pipeline of does not feed through in outer pipeline, establishes the coating on the outer pipe inner wall, two ends of coating respectively with the nonrust steel pipe overlap joint of the inside lining of two ends in the outer pipeline, and cover on inside lining stainless steel pipe, can there be the interval at the marginal and two end edges in the outer pipeline of coating. The utility model has the advantages of, make up the compound pipe of plastic -coated with nonrust steel pipe, utilize the easy welded characteristic of nonrust steel pipe, the easy destroyed problem of coating when overcoming the compound pipe welded connection of plastic -coated.
Description
Technical field
This utility model is related to a kind of composite steel tube, particularly to a kind of bimetallic plastic coated composite steel with being welded to connect
Pipe.
Background technology
Traditional plastic coated composite steel pipe cannot secondary be repaired because welding high temperature leads to pipeline welding position inside coating to destroy,
Limit the range of application of plastic coated composite steel pipe.
Content of the invention
Problem to be solved in the utility model is to provide a kind of composite steel tube of inside and outside plastic-coated plastic-coated when being welded to connect
Layer is not by bad dual-metal clad steel pipe.The low cost of plastic coated composite steel pipe and Corrosion Protection are good, inner liner stainless steel multiple tube
There is preferable anticorrosion and welding function again, the stainless steel tube of the position liner certain length that steel pipe two ends need to be welded,
Other positions of steel pipe are carried out coated solidified process with molding powder, the welding function that can meet plastic-coated composite pipe requires, and energy
Using molding powder excellent and inexpensive Corrosion Protection, anti-corrosion protection is carried out to pipeline other position, can be greatly lowered into
This.
For solving above-mentioned technical problem, the technical solution used in the present invention is that a kind of bimetallic plastic-coated being easy to weld is multiple
Close steel pipe to include Outer Tube, be divided into the inner liner stainless steel pipe of Outer Tube two end inwall, the liner of Outer Tube two end inwall is stainless
Steel pipe does not connect in Outer Tube, and Outer Tube inwall sets coating, the coating two end inner liner stainless steel with Outer Tube two end respectively
Pipe overlaps and covers on inner liner stainless steel pipe, and coating edge and Outer Tube two end margin can have interval.
Further, the bond strength of Outer Tube and inner liner stainless steel pipe>0.2Mp.
Further, described Outer Tube and described inner liner stainless steel inside pipe wall junction can be with after the sealings of refractory seals glue
Plastic-coated.
It is also possible that after Outer Tube is compound with the rolling of inner liner stainless steel pipe, inwall joint can first use refractory seals glue to seal,
Repaste and mould covering binding site.Outer Tube can also be connected using argon arc welding with inner liner stainless steel inside pipe wall binding site,
Then clean, and carry out preservative treatment with anti-corrosion material.
Further, inner liner stainless steel tube edges can be provided with ring reinforcement ridge.
Its advantage of the present utility model is as follows：Pipe installing is the most frequently used, the most reliable, cost is minimum, application
Widely connected mode is to be welded to connect, and the termination inner liner stainless steel pipe of bimetallic plastic coated composite steel pipe being easy to welding is as double
The welding transition region of metal plastic-coated composite pipe, both can guarantee that plastic coated composite steel pipe install when welding requirements, be avoided that again because
Welding high temperature leads to coating for inner wall layer to be destroyed and lose antiseptic property.During pipeline welding, welding current is bigger, distance
Pad is nearer, and tubing temperature is higher, conversely, tubing temperature is lower, according to this characteristic, according to molding powder or other anti-corrosion material
Carburizing temperature, determines the length of welding transition interior lining region stainless steel tube, can guarantee that the coating material beyond inner liner stainless steel region
Material is not soldered high temperature cabonization, reaches the purpose that plastic coated composite steel pipe is not destroyed in welded and installed process floating coat.
Brief description
The utility model is described in further detail with reference to the accompanying drawings and examples：
Accompanying drawing 1 is this utility model structural representation.
Accompanying drawing 2 is inner liner stainless steel pipe preferred structure schematic diagram.
In figure：Outer Tube 1, inner liner stainless steel pipe 2, coating 3, reinforcement ridge 4, refractory seals glue 5.
Specific embodiment
In Fig. 1, a kind of bimetallic plastic coated composite steel pipe being easy to weld includes Outer Tube 1（Pipeline base material）, be divided into
The inner liner stainless steel pipe 2 of Outer Tube 1 two end inwall, the inner liner stainless steel pipe 2 of Outer Tube 1 two end inwall does not connect in Outer Tube
Logical, Outer Tube 1 inwall sets coating 3, coating 3 two end divides the another inner liner stainless steel pipe 2 with Outer Tube 1 two end to overlap and cover
On inner liner stainless steel pipe 2 and/or refractory seals glue 5, coating 3 edge and Outer Tube 1 two end margin have interval；Outer Tube 1
Argon arc welding may also be employed with inner liner stainless steel pipe 2 to be connected, Outer Tube 1 is prevented with anti-corrosion material with inner liner stainless steel pipe 2 joint
Rotten sealing, or Outer Tube 1 and inner liner stainless steel pipe 2 are using rotary press modelling technology, the combination of Outer Tube 1 and inner liner stainless steel pipe 2
Intensity>0.2Mp.
In Fig. 2, the preferred structure of inner liner stainless steel pipe 2 lining stainless steel tube 2 edge that is included is provided with ring and strengthens ridge
4, increase the connection area of two adjacent bimetallic plastic coated composite steel pipes being easy to weld by strengthening ridge 4, thus improve two
The welded seal reliability of the bonding strength of person and inner liner stainless steel, also can delay to weld the high temperature producing to coating transmission.
Process 1：First to Outer Tube 1 inside and outside wall shotblasting rust cleaning, except oil stain process；Then spinning or punching are passed through
The inner liner stainless steel pipe 2 to Outer Tube 1 two end for the pressure equipment（Welding termination）Carry out inner liner stainless steel spinning or extrusion process processed,
Also can the inwall junction of the inner liner stainless steel pipe 2 at Outer Tube 1 and two ends be carried out strengthening at sealing using refractory seals glue
Reason, finally carries out to Outer Tube 1 inside and outside wall applying plastic coating process.
Process 2：First to Outer Tube 1 inside and outside wall shotblasting rust cleaning, except oil stain process；Then spinning or punching are passed through
The inner liner stainless steel pipe 2 to Outer Tube 1 two end for the pressure equipment（Welding termination）Carry out inner liner stainless steel spinning or extrusion process processed,
If cannot carry out welding the liner processed of tube head with spinning or pressing equipment in erecting bed, can be effective by inner liner stainless steel
Manual mode embeds steel pipe tube head inwall, and Outer Tube 1 is welded with the inwall seam of inner liner stainless steel pipe 2 and pipe end seam
Connect, and with anti-corrosion material, preservative treatment is carried out to the weld seam cleared up.
Claims (5)
1. a kind of bimetallic plastic coated composite steel pipe being easy to weld, is characterized in that：Described composite steel tube includes Outer Tube, is divided into
The inner liner stainless steel pipe of Outer Tube two end inwall, the inner liner stainless steel pipe of Outer Tube two end inwall does not connect, outward in Outer Tube
Coating is set on inner-walls of duct, coating two end is overlapped with the inner liner stainless steel pipe at Outer Tube two end respectively and covers stainless in liner
On steel pipe, coating edge and Outer Tube two end margin can have interval.
2. a kind of bimetallic plastic coated composite steel pipe being easy to weld according to claim 1, is characterized in that：Described Outer Tube
Bond strength with described inner liner stainless steel pipe>0.2Mp.
3. a kind of bimetallic plastic coated composite steel pipe being easy to weld according to claim 1, is characterized in that：Described Outer Tube
Can be with plastic-coated after the sealing of refractory seals glue with described inner liner stainless steel inside pipe wall junction.
4. a kind of bimetallic plastic coated composite steel pipe being easy to weld according to claim 1, is characterized in that：Described Outer Tube
Can be connected using argon arc welding with described inner liner stainless steel pipe, be bondd with anti-corrosion material at Outer Tube and inner liner stainless steel pipe joint
Sealing.
5. a kind of bimetallic plastic coated composite steel pipe being easy to weld according to claim 1, is characterized in that：Described liner is not
Rust steel pipe edge is provided with ring and strengthens ridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803764.9U CN205956574U (en) | 2016-07-28 | 2016-07-28 | Bimetal plastic -coated compound steel pipes convenient to welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803764.9U CN205956574U (en) | 2016-07-28 | 2016-07-28 | Bimetal plastic -coated compound steel pipes convenient to welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205956574U true CN205956574U (en) | 2017-02-15 |
Family
ID=57972421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620803764.9U Active CN205956574U (en) | 2016-07-28 | 2016-07-28 | Bimetal plastic -coated compound steel pipes convenient to welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205956574U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081242A (en) * | 2019-04-15 | 2019-08-02 | 重庆鼎久管道有限公司 | A kind of two metal solder plastic coated composite steel pipe |
| CN114857373A (en) * | 2022-04-28 | 2022-08-05 | 重庆鼎久管道有限公司 | Bimetal welding plastic-coated composite steel pipe |
-
2016
- 2016-07-28 CN CN201620803764.9U patent/CN205956574U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081242A (en) * | 2019-04-15 | 2019-08-02 | 重庆鼎久管道有限公司 | A kind of two metal solder plastic coated composite steel pipe |
| CN114857373A (en) * | 2022-04-28 | 2022-08-05 | 重庆鼎久管道有限公司 | Bimetal welding plastic-coated composite steel pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 443001 no.c3, machining industrial park, Qianping Road, Wujiagang District, Yichang City, Hubei Province Patentee after: YICHANG LIMIN PIPE INDUSTRY TECHNOLOGY Co.,Ltd. Address before: 443000 Gongsheng village, Wujiagang District, Yichang City, Hubei Province Patentee before: YICHANG LIMIN PIPE TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |