CN107379562A - The seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe - Google Patents
The seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe Download PDFInfo
- Publication number
- CN107379562A CN107379562A CN201710422254.6A CN201710422254A CN107379562A CN 107379562 A CN107379562 A CN 107379562A CN 201710422254 A CN201710422254 A CN 201710422254A CN 107379562 A CN107379562 A CN 107379562A
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- CN
- China
- Prior art keywords
- plastic
- air bag
- steel
- pipe
- composite pressure
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
- B29C65/30—Electrical means
- B29C65/32—Induction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81455—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses the seamless hot melting and connecting method of expanding outside a kind of large-diameter steel plastic composite pressure pipe, steel-plastic composite pressure pipe material has steel pipe layer and inside and outside plastic pipe layer, plastic pipe has inside and outside ring portion and annular socket joint chamber, the air bag connectivity trachea being put into pipe fitting, the external aerating device of tracheae；Air bag fills into cylinder and is affixed on internal ring portion；Tubing is planted and arrives annular socket joint intracavitary；Electromagnetic welding tool is powered, and is pointed to the steel pipe layer heating of annular socket joint intracavitary, inside and outside plastic pipe layer melted by heating, the heated internal ring portion deformation of the lasting extruding order of air bag, to promote internal ring portion fully to fill up its gap between interior plastic pipe layer；Power off and withdraw electromagnetic welding tool, to air bag deflation to take from air bag and tracheae after cooling and solidifying.After this method, realize internal ring portion fully fill up because large-diameter steel plastic composite pressure pipe objective reality lose discount vibram outlet fall into and caused by welding gap, eliminate the welding gap between interior plastic pipe layer and internal ring portion, the present invention is small to connection bore limitation.
Description
【Technical field】
The present invention relates to the seamless hot melting and connecting method of expanding outside a kind of large-diameter steel plastic composite pressure pipe, belong to pipeline welding
Technical field.
【Background technology】
In the construction of pipeline engineering, steel-plastic composite pressure pipe material is difficult to really realize that forming tightening seal with plastic pipe melts
Connect, inevitably welding gap be present with the internal ring portion of plastic pipe in steel-plastic composite pressure pipe material, so as to Seepage occur,
Discount vibram outlet is lost due to steel-plastic composite pressure pipe material objective reality and falls into (for example being caused by manufacture, transportation etc.), welding gap will
When becoming uncontrollable, and being more than 110mm heavy caliber welding for the diameter of supporting plastic pipe and steel-plastic composite pressure pipe material,
Welding gap certainly will be more difficult to control.
How steel-plastic composite pressure pipe material and plastic pipe between reliable seamless tightening seal welding is promoted, and this is pipeline industry
One technical barrier on boundary, applicant pass through unremitting research with great concentration, have submitted within 10th electromagnetic induction internal-expansion type in September in 2016 and fill
Divide hot-melt adhesive paste pipeline, although the technical scheme can realize that pure plastic pipe part forms seamless welding with composite metal-plastic pipe material
Sealing, but following technical deficiency be present：
1st, need that ring bush, rubber sleeve are fixedly mounted in pure plastic pipe part, on the one hand add cost of parts and peace
This is dressed up, on the other hand because the presence of ring bush reduces the latus rectum of pure plastic pipe part；
2nd, restricted greatly by the connection bore of composite metal-plastic pipe material and pure plastic pipe part, it is big that difficulty adapts to more than 110mm
The composite metal-plastic pipe material of bore and the welding of pure plastic pipe part, only can not be real by the small and weak extruding expansive force of rubber sleeve itself
The seamless welding of existing large-diameter pipe.
【The content of the invention】
For above-mentioned the shortcomings of the prior art, it is an object of the invention to provide a kind of link cost is low, welding is strong
The seamless hot melting and connecting method of the outer expanding of high large-diameter steel plastic composite pressure pipe is spent, using this method so that steel-plastic composite pressure pipe
Highly reliable, seamless frit seal can be formed between material and plastic pipe, has prevented the generation of pipe leakage phenomenon, and to supporting
Steel-plastic composite pressure pipe material and plastic pipe connection bore limitation it is small.
Therefore, the present invention provides following technical scheme：
The seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe, include the steel-plastic composite pressure pipe of welding
Material and the plastic pipe being fused, steel-plastic composite pressure pipe material have steel pipe layer and the interior modeling positioned at the inside and outside both sides of the steel pipe layer
Expects pipe layer, outer plastic pipe layer, plastic pipe have at least one internal ring portion, outer portion and are formed between internal ring portion and outer portion
Annular socket joint chamber, this method is：First toward air bag is put into plastic pipe, air bag uses resistant to elevated temperatures rubber pneumatic bag, and gas
Capsule is communicated with tracheae, the external aerating device of tracheae, then toward slow filling air in air bag so that fill into the air bag of cylinder
The internal ring portion of plastic pipe is affixed on, steel-plastic composite pressure pipe material is then planted into the annular socket joint intracavitary to plastic pipe, and then
Have to electromagnetic welding and be powered, the steel-plastic composite pressure pipe material of annular socket joint intracavitary its steel pipe layer progress electricity is pointed to by electromagnetic welding tool
Magnetic induction is heated, inside and outside plastic pipe layer melted by heating, the heated internal ring portion deformation of the lasting extruding order of air bag, to promote inner ring
Its gap between interior plastic pipe layer is fully filled up in portion, is powered off afterwards and is withdrawn electromagnetic welding tool, is put after cooling and solidifying to air bag
Gas obtains the hot-melt adhesive paste finished product of plastic pipe and steel-plastic composite pressure pipe material to take from air bag and tracheae.
As to such scheme it is further supplement and it is perfect, present invention additionally comprises following technical characteristic：
Electromagnetic welding tool is the belt electromagnetic welding tool with electromagnetic induction coil, and belt electromagnetic welding tool is coated on plastic pipe
Outer portion surface corresponding to its annular socket joint chamber, with reference to two technological means of electromagnetic melting band tool and air bag can effect preferably meet
The needs that large-caliber plastic pipe is connected with steel-plastic composite pressure pipe material.
Air bag is arranged with left and right two gas injection valves, each external tracheae of gas injection valve in its arranged on left and right sides.
Compared with prior art, the invention has the advantages that and good effect：
1st, the seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe of the present invention, in the internal ring portion of plastic pipe
It is sticked and fills into the air bag of cylinder, then steel-plastic composite pressure pipe material is planted in the annular socket joint intracavitary of plastic pipe, based on electricity
On the basis of magnetic induction heating, the air bag continuous extrusion of swollen state is ordered heated outside internal ring portion deformation realizes that internal ring portion fills
Point fill up because large-diameter steel plastic composite pressure pipe material objective reality lose discount vibram outlet fall into and caused by welding gap, make supporting hot-melt adhesive paste
Large-diameter steel plastic composite pressure pipe material and plastic pipe together, thoroughly eliminate molten between interior plastic pipe layer and internal ring portion
Seam gap, fluid is prevented and has been gone out from both seepage, the good airproof performance of pipeline convection body, avoided pipe leakage hidden danger.
Present inventive concept is ingenious, promotes steel-plastic composite pressure pipe material to belong to pioneering with the seamless frit seal of plastic pipe using air bag, steel
The limitation of the connection bore of plastic composite pressure pipe material and plastic pipe is small；
2nd, after being cooled and solidified due to welding, air bag is taken from therefore this law does not influence the latus rectum of original plastic pipe, right
Pipeline flow does not influence, and air bag can repeatedly use, without needing ring bush, rubber sleeve as prior art, zero
Part cost, installation cost are saved notable；
3rd, the close patch after internal ring portion is heated in air bag is forced down, and its own microstructure of internal ring portion is remolded, inner ring
Toughen up densification after portion's cooling, so as to improve the heat seal strength of large-diameter steel plastic composite pressure pipe material and plastic pipe；
4th, air bag uses resistant to elevated temperatures rubber pneumatic bag, and it is good that rubber pneumatic bag extrudes even results to internal ring portion.
【Brief description of the drawings】
Fig. 1 carries out the schematic diagram of seamless welding using the steel-plastic composite pressure pipe material of the inventive method with plastic pipe.
【Embodiment】
It refer to shown in Fig. 1, the seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe, including welding
Steel-plastic composite pressure pipe material 1 and the plastic pipe 2 being fused, steel-plastic composite pressure pipe material 1 have steel pipe layer 10 and positioned at the steel
Interior plastic pipe layer 11, the outer plastic pipe layer 12 of 10 inside and outside both sides of tube layer, plastic pipe 2 have at least one internal ring portion 21, outer shroud
Portion 22 and the annular socket joint chamber 20 being formed between internal ring portion 21 and outer portion 22, this method is：First toward putting in plastic pipe 2
Enter air bag 3, air bag uses resistant to elevated temperatures rubber pneumatic bag, and air bag 3 is communicated with tracheae 4, and 4 external aerating device of tracheae (is not schemed
Show), then toward slow filling air in air bag 3 so that the air bag 3 for filling into cylinder is affixed on internal ring portion 21, then moulds steel
Composite pressure tubing 1 is planted into the annular socket joint chamber 20 of plastic pipe 2, and then is had to electromagnetic welding and be powered, and is had by electromagnetic welding
Its steel pipe layer 10 progress electromagnetic induction heating of steel-plastic composite pressure pipe material 1 being pointed in annular socket joint chamber 20, interior plastic pipe layer
11 and the melted by heating of outer plastic pipe layer 12, the heated deformation of internal ring portion 21 of the lasting extruding order of air bag 3, to promote internal ring portion 21 to fill
Divide and fill up its gap between interior plastic pipe layer 11, power off afterwards and withdraw electromagnetic welding tool, steel-plastic composite pressure pipe material 1 and modeling
Expects pipe part 2 is deflated to take from air bag 3 and tracheae 4 after cooling and solidifying to air bag 3, obtains plastic pipe 2 and steel-plastic composite pressure pipe
The hot-melt adhesive paste finished product of material 1.
The plastic pipe 2 shown in the present embodiment figure is elbow plastic pipe, can also be certainly straight two-way plastic pipe,
Threeway plastic pipe, four-way plastic pipe etc..
In the present embodiment, the external connection end of tracheae 4 is to beat by valve cock connection aerating device (not shown), aerating device
Air pump.
Electromagnetic welding tool is the belt electromagnetic welding tool 5 with electromagnetic induction coil 51, and belt electromagnetic welding tool 5 is coated on plastics
The surface of outer portion 22 corresponding to its annular socket joint chamber 20 of pipe fitting 2.
According to the wall thickness and diameter of the inside and outside plastic pipe layer of steel-plastic composite pressure pipe material 1, generally belt electromagnetic welding
Tool 5 is heated to 210-250 DEG C and achieves that steel-plastic composite pressure pipe material 1 and the hot-melt adhesive paste of plastic pipe 2.
As illustrated, air bag 3 is arranged with left gas injection valve 32, right gas injection valve 31, each gas injection valve external one in its arranged on left and right sides
Root tracheae.
Claims (3)
1. a kind of seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe, include the steel plastic compount pressure of welding
Tubing and the plastic pipe being fused, steel-plastic composite pressure pipe material have steel pipe layer and in the inside and outside both sides of the steel pipe layer
Plastic pipe layer, outer plastic pipe layer, plastic pipe there is at least one internal ring portion, outer portion and be formed at internal ring portion and outer portion it
Between annular socket joint chamber, it is characterized in that this method is：First toward air bag is put into plastic pipe, air bag uses resistant to elevated temperatures rubber
Air bag, and air bag is communicated with tracheae, the external aerating device of tracheae, then toward slow filling air in air bag so that fill into circle
The air bag of cylindricality is affixed on the internal ring portion of plastic pipe, and steel-plastic composite pressure pipe material then is planted into the annular socket joint to plastic pipe
Intracavitary, and then give electromagnetic welding tool to be powered, the steel-plastic composite pressure pipe material of annular socket joint intracavitary its steel is pointed to by electromagnetic welding tool
Tube layer carries out electromagnetic induction heating, inside and outside plastic pipe layer melted by heating, and the lasting extruding of air bag makes heated internal ring portion deformation,
To promote internal ring portion fully to fill up its gap between interior plastic pipe layer, power off afterwards and withdraw electromagnetic welding tool, cooling and solidifying
Afterwards the hot-melt adhesive paste finished product of plastic pipe and steel-plastic composite pressure pipe material is obtained to air bag deflation to take from air bag and tracheae.
2. the seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe according to claim 1, its feature exist
In：The electromagnetic welding tool is the belt electromagnetic welding tool with electromagnetic induction coil, and belt electromagnetic welding tool is coated on plastic pipe
Outer portion surface corresponding to its annular socket joint chamber.
3. the seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe according to claim 1, its feature exist
In：The air bag is arranged with left and right two gas injection valves, each external tracheae of gas injection valve in its arranged on left and right sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422254.6A CN107379562A (en) | 2017-05-27 | 2017-05-27 | The seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422254.6A CN107379562A (en) | 2017-05-27 | 2017-05-27 | The seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107379562A true CN107379562A (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710422254.6A Pending CN107379562A (en) | 2017-05-27 | 2017-05-27 | The seamless hot melting and connecting method of the outer expanding of large-diameter steel plastic composite pressure pipe |
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| Country | Link |
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| CN (1) | CN107379562A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123795A (en) * | 2020-09-21 | 2020-12-25 | 哈尔滨工业大学（威海） | All-position hot-pressing connection system for metal/plastic pipes |
| CN113518704A (en) * | 2019-02-27 | 2021-10-19 | 赛峰飞机发动机公司 | Assembly of outlet guide blades for aircraft turbines using inflatable bladders |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498387A (en) * | 2008-01-30 | 2009-08-05 | 甘国工 | Metal framework reinforced plastic composite pipes and method for manufacturing the same |
| CN106287094A (en) * | 2016-09-10 | 2017-01-04 | 王泽宇 | Electromagnetic induction internal-expansion type abundant hot-melt adhesive paste pipeline |
-
2017
- 2017-05-27 CN CN201710422254.6A patent/CN107379562A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498387A (en) * | 2008-01-30 | 2009-08-05 | 甘国工 | Metal framework reinforced plastic composite pipes and method for manufacturing the same |
| CN106287094A (en) * | 2016-09-10 | 2017-01-04 | 王泽宇 | Electromagnetic induction internal-expansion type abundant hot-melt adhesive paste pipeline |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113518704A (en) * | 2019-02-27 | 2021-10-19 | 赛峰飞机发动机公司 | Assembly of outlet guide blades for aircraft turbines using inflatable bladders |
| CN113518704B (en) * | 2019-02-27 | 2023-11-24 | 赛峰飞机发动机公司 | Assembly of outlet guide vanes for an aircraft turbine using an inflatable bladder |
| CN112123795A (en) * | 2020-09-21 | 2020-12-25 | 哈尔滨工业大学（威海） | All-position hot-pressing connection system for metal/plastic pipes |
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Application publication date: 20171124 |