CN1342860A - Method for connecting large-diameter composite metal-plastic pipes - Google Patents
Method for connecting large-diameter composite metal-plastic pipes Download PDFInfo
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- CN1342860A CN1342860A CN 01128929 CN01128929A CN1342860A CN 1342860 A CN1342860 A CN 1342860A CN 01128929 CN01128929 CN 01128929 CN 01128929 A CN01128929 A CN 01128929A CN 1342860 A CN1342860 A CN 1342860A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000004033 plastic Substances 0.000 title claims abstract description 35
- 229920003023 plastic Polymers 0.000 title claims abstract description 35
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000005267 amalgamation Methods 0.000 claims description 181
- 238000005485 electric heating Methods 0.000 claims description 40
- 229920001169 thermoplastic Polymers 0.000 claims description 32
- 239000012943 hotmelt Substances 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005253 cladding Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 8
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
A method for the connection between two large-diameter composite metal-plastic pipes includes such steps as moving them closely while aligning them for butt connection, and adhering a splicing layer on the external surface of both ends to be connected for cladding them. Its advantages include easily making said splicing block layer composed of splicing units, easy operation and high connection reliability.
Description
Technical field
The present invention relates to a kind of connecting means of pipeline, especially a kind of connecting means of large-diameter composite metal-plastic pipes.
Background technique
At present, composite metal-plastic pipes extensively adopts in a lot of fields, and the new technology that the pipeline that accompanies with it connects also occurs thereupon.In concrete enforcement, small-bore pipeline connects implements the socket joint connection after the employing thermal tool makes tubing to be connected, pipe fitting hot melt, this is little for volume, little, the lightweight small-bore pipeline of hot melt area, in operation is feasible really, and the plastics of heating back fusing can be full of the gap between tubing, pipe fitting and realize sealing.And, make size deviation between minor caliber pipe, pipe fitting and also can be controlled in the scope that the thermofusible spigot technology allowed.But, after caliber increases, owing to tubing, pipe fitting volume increase, weight increases, adopt said method not only in operation, can't implement again, and because the joint needs the area of hot melt to increase a lot, the instrument heating can not guarantee the hot melt effect, the difficult quality guarantee that pipeline is connected.
In order to solve above-mentioned contradiction, the hot melting and connecting method of 200～400 millimeters bore pipelines of diameter is now: produce the pipe fitting that is embedded with electric heating wire in factory, earlier tubing is inserted in the pipe fitting in construction, energising is connected the plastics fusion of outer pipe wall and pipe fitting inner wall.But tubing, pipe fitting size deviation increase with caliber in the production, make tubing be difficult to inject pipe fitting through regular meeting, or insert the latter two excesssive gaps, and the plastics that heating can be melted are difficult to be full of this gap, thereby have a strong impact on pipeline quality.
So, the limitation of present hot-melt technology and these difficulties in the manufacture process, heavy caliber (particularly diameter is more than 1000 millimeters) composite metal-plastic pipe should be sought new connecting means.
Application number is the connecting means that 00112848.5 Chinese invention patent application has proposed a kind of metal skeleton reinforced composite plastic pipeline, but this method utilizes the plastics can bonding or hot melt connection characteristics, utilizes the metallic conduit flange to implement to connect.But, this method does not fundamentally solve the size deviation that heavy caliber pipe, pipe fitting occur and exceeds this problem of scope that present hot melt interconnection technique is allowed in manufacture process, can not be full of the gap and influence this root problem of pipeline quality thereby can not effectively solve the plastics that melt at the pipeline junction thermal fusing surface.So this method still can not make heavy caliber (particularly diameter is more than 1000 millimeters) pipeline be able to connect effectively and reliably.
Summary of the invention
The purpose of this invention is to provide a kind of can enforcement effectively and the reliable method that connects to heavy caliber (particularly diameter is more than 1000 millimeters) composite metal-plastic pipes.
Purpose of the present invention realizes in the following manner: use one or one group (every group contains two or more amalgamation pieces) can piece together the amalgamation piece of complete tubulose as two sections links of waiting to take over material, outer tube wall adhesion mutually with inwall with the end to be connected of this two tubing of amalgamation piece, making the final amalgamation of amalgamation piece is to be adhered on the outer tube wall of two tubing end to be connected, and the outer tube wall of the junction of two tubing is sealed fully the amalgamation piece layer of coating.
Simultaneously, the amalgamation piece layer that is provided with of mode can be one deck according to this, but also can be two-layer or two-layer more than.Also that is to say, though the present invention adopts from (but can be considered a certain part of body as non-complete tubulose, its cross section does not constitute a complete ring structure) the outer tube wall adhesion mutually of amalgamation piece and the end to be connected of two tubing, but, when the pipeline connection is finished, by the amalgamation of amalgamation piece self, form the most at last on the outer tube wall of the junction be adhered to two tubing, and the complete tubulose single or multiple lift amalgamation piece layer that this outer tube wall is coated fully.
Specifically, connecting means of the present invention is earlier to wait that the end to be connected of taking over material draws close, aligns to two sections, again at the bonding one deck at least of outer tube wall amalgamation piece layer of these tubing two ends to be connected, allow bonding amalgamation piece layer the outer tube wall of these tubing two ends to be connected is coated.
In the present invention, the amalgamation piece layer bonding at the outer tube wall of tubing two ends to be connected can be individual layer, also can be two-layer or two-layer more than.When the amalgamation piece layer that is provided with more than two-layer or two-layer, each amalgamation piece layer is overlapping successively, and adjacent amalgamation piece layer is bonding mutually, and the amalgamation seam of adjacent amalgamation piece layer preferably is crisscross arranged.
Require emphasis and be pointed out that: adopt two-layer or two-layer above amalgamation piece layer that pipeline is implemented to connect, this often must be with effective in practice of construction.For example, at the scene in the construction, use thicker amalgamation piece of wall thickness and tubing to carry out once (having only one deck) and be connected and normally be difficult to realize, this usually can influence quality of connection, causes seepage.But,,, can not reach due join strength though help constructing operation if only adopt the thin amalgamation piece of one deck to connect.Therefore, for the ease of constructing operation and guarantee join strength, just become preferable selection by the amalgamation piece layer that the amalgamation piece constitutes in the bonding multilayer of the connection part of tubing.
Under the common situation, the first thin amalgamation piece layer of bonding one deck tube wall outside, and guarantee bonding well, and seepage does not take place, repeat bonding one to two layer of amalgamation piece layer thereafter again, the intensity with the increase connection part finally reaches firm purpose of connecting.When bonding multilayer amalgamation piece layer, the bonding of each amalgamation piece layer is not can only use with a kind of adhering method, and can choose flexibly or staggered the use according to factors such as practice of construction condition and tubing.Also that is to say that the bonding of different amalgamation piece layers can adopt different adhering methods.
In the present invention, the mutually bonding mode of the inwall that makes the amalgamation piece and the outer surface of the amalgamation piece layer of the outer tube wall of tubing two ends to be connected or first front attachment can adopt bonding way such as the bonding or hot melt adhesion of tackiness agent, ultrasound be bonding, as long as can reach above-mentioned bonding purpose.When adopting the bonding mode of hot melt adhesion, ultrasound, the inwall of amalgamation piece should have the thermoplastic plastic layer, simultaneously, also should have the thermoplastic plastic layer with the outer surface of the amalgamation piece layer of the outer tube wall of mutually bonding tubing two ends to be connected of this amalgamation piece or first front attachment, could realize that like this fusion of bonding plane connects.And when adopting the bonding mode of tackiness agent, then do not have above-mentioned requirement.In bonding process, can also utilize force application device that the amalgamation piece of amalgamation piece layer is imposed active force, make the amalgamation piece can be close to bonding plane, make adhesive effect better.
As previously mentioned, employed amalgamation piece can be single amalgamation piece in the amalgamation piece layer, also can be the amalgamation piece group that is made of two or more amalgamation pieces, as long as it finally can amalgamation be the tubulose amalgamation piece layer with two ends coatings to be connected of tubing.When amalgamation piece layer only was made of an amalgamation piece, the cross section of this amalgamation piece is the ring-type with fracture normally.Though this amalgamation piece not with other amalgamation piece amalgamation mutually, but because itself is a non-complete tubular structure, its cross section neither a complete ring-type, simultaneously, it can constitute the tubulose amalgamation piece layer (its cross section has constituted a complete ring structure at this moment) that two ends to be connected with tubing coat by amalgamation (as its ring-type incision position is drawn close and bonding mutually) again, therefore, still it is considered as constitute the amalgamation piece of amalgamation piece layer among the present invention.In other words, in the present invention, the amalgamation piece can be by splicing with other amalgamation piece mutually, but also can constitute above-mentioned tubulose amalgamation piece layer by the splicing of himself.
In the present invention, described amalgamation piece can be an all-plastic structure, but also can be metal---plastics composite structure.If adopt the form of hot melt adhesion, can also adopt and treat that gluing of surfaces is preset with the amalgamation piece of electric heating wire.Certainly, electric heating wire also can be provided with when participating in the cintest in when construction, and at this moment set electric heating wire can have following several set-up mode: 1., around the amalgamation piece layer outer surface of the outer tube wall of tubing two ends to be connected or first front attachment around setting.2., be provided with around the outer tube wall of tubing two ends to be connected or the amalgamation piece layer outer surface helical of first front attachment.3., be provided with along the tubing axially-aligned at the outer tube wall of tubing two ends to be connected or the amalgamation piece layer outer surface of first front attachment.4., in the netted setting of amalgamation piece layer outer surface around the outer tube wall or the first front attachment of tubing two ends to be connected.
When pipeline being implemented to connect,, then should implement sealing and handle this gap if remain between the amalgamation piece with layer in the splicing gap by said method of the present invention.The sealing in this gap is handled can adopt multiple mode, as binder bonding method commonly used or hot melting plastic enthesis (mold heated and hot blast heating) or the like.When this gap is big, can also adopt the mode of bonding (tackiness agent is bonding or melting adhered, ultrasound bonding) splicing block that sealing is implemented in this gap.
In addition, in the present invention,, guarantee the quality of connection of pipeline, can on bigger amalgamation piece, the way with machining offer peephole and exhaust port in advance for the gas that is produced in the fusion situation that can grasp the amalgamation piece exactly and the discharging reflow process.The peephole of opening can be a through hole, also can be blind hole, the direction of perforate by the outer surface of amalgamation piece towards its internal surface.Certainly, this peephole and exhaust port should not opened on the butt joint of tubing.After connection was finished, peephole and exhaust port also can adopt above-mentioned enclosure method to the splicing gap to be sealed.
In the present invention, said tubing had both comprised general pipe, also comprised pipe fitting (as links such as elbow, threeway, reducing are straight-through).
Method of the present invention can be carried out effectively, connect reliably heavy caliber (particularly diameter is more than 1000 millimeters) composite metal-plastic pipes, and its method is convenient, flexible, feasible.In addition, compare with aforementioned existing method, method of the present invention also has following advantage: 1., make easily as the amalgamation piece of link (that is constitute amalgamation piece layer amalgamation unit).No matter being all-plastic, makes or the metallo-plastic produced with combination the used amalgamation piece of this method, all easy than the pipe fitting of making the same specification size.2., easy construction.Pipeline Placement of the present invention easy construction, usual manner is finished can to adopt existing hot melt to connect or tackiness agent is bonding etc., does not need to increase more construction equipment.Method is easy, workable, and it is more flexible to construct, and can be implemented according to the environment and the execution conditions of job site.3., connect reliably.Because the selectable leeway of amalgamation piece size is very big, thereby can overcome the size deviation that tubing occurs effectively, or even lose defectives such as round, eliminate the pipeline quality of connection problem that causes because of factors such as socket joint degree of depth deficiency, excesssive gaps, thereby guarantee quality of connection.
Description of drawings
Fig. 1 is the pipeline splicing view among the embodiment 1.
Fig. 2 is the A--A sectional drawing of Fig. 1.
Fig. 3 is the pipeline splicing view among the embodiment 2.
Fig. 4 is the B--B sectional drawing of Fig. 3.
Fig. 5 is the pipeline splicing view among the embodiment 3.
Fig. 6 is the C--C sectional drawing of Fig. 5.
Fig. 7 is the structural representation of used amalgamation piece among the embodiment 3.
Fig. 8 is the D--D sectional drawing of Fig. 7.
Fig. 9 is the E--E sectional drawing of Fig. 7.
Figure 10 is the stereogram of amalgamation piece shown in Figure 7.
Figure 11 is the structural representation of used splicing block among the embodiment 3.
Figure 12 is the cross-sectional view of splicing block shown in Figure 11.
Figure 13 is the pipeline splicing view among the embodiment 4.
Figure 14 is the F--F sectional drawing of Figure 13.
Figure 15 is a pipeline splicing view of not filling up the splicing gap among the embodiment 4.
Figure 16 is the G--G sectional drawing.
Figure 17 is the stereogram of used splicing block among the embodiment 4.
Figure 18 is the pipeline splicing view among the embodiment 5.
Figure 19 is the H--H sectional drawing.
Embodiment
Embodiment 1: as shown in Figure 1, 2, pipe connecting method in the present embodiment is earlier to wait that the end to be connected of taking over material 1,2 draws close, aligns to two sections, again the outer tube wall of these tubing two ends to be connected with adhering method bonding one deck amalgamation piece layer 3, bonding amalgamation piece layer 3 outer tube wall of these tubing two ends to be connected is coated.
In the present embodiment, the amalgamation piece of formation amalgamation piece layer 3 is one.This amalgamation piece is actually by one section plastic tube and makes, one side pipe wall of this section plastic tube is broken away along the body axial direction, thereby make its cross section become a ring structure (cut the position open at it and form fracture) with fracture, when two ends to be connected that above-mentioned amalgamation piece are bonded in tubing, and when its fracture phase mutual connection was held together, this amalgamation piece can piece together the tubular structure that two ends to be connected with tubing 1,2 coat.
In the present embodiment, the adhering method that above-mentioned amalgamation piece layer 3 adopted being set is the tackiness agent adhering method.In addition,, be filled in this splicing gap with splicing block 5 in this example for the splicing gap 4 that stays on the amalgamation piece layer 3, and with tackiness agent cementation in addition.
Embodiment 2: shown in Fig. 3,4, the pipe connecting method in the present embodiment is similar to embodiment 1, promptly still adopts individual layer amalgamation piece layer to implement the connection of pipeline, and different is that in the present embodiment, the adhering method that adopts is the hot melt adhesion method.
In addition, the amalgamation piece of being settled in the present embodiment is the amalgamation piece that offers peephole 6 and exhaust port 7.The perforate direction of peephole 6 by the outer surface of amalgamation piece towards its internal surface (peephole 6 in this example is a blind hole).7 inside and outside surfaces that connect the amalgamation piece of exhaust port.
In the present embodiment, the outer tube wall of two ends to be connected of the inwall of amalgamation piece and tubing 1,2 all has the thermoplastic plastic layer, so adopt the hot melt Placement amalgamation piece layer 3 to be bonded to the outer tube wall of tubing two ends to be connected.Its concrete grammar is as follows: lay electric heating wire 8 between the outer tube wall of amalgamation piece and tubing two ends to be connected, with force application device (using holding device herein) the amalgamation piece is imposed active force, make the inwall of amalgamation piece be affixed to tube wall outside the tubing that is equipped with electric heating wire, to electric heating wire 8 energisings, the heat that allows electric heating wire send melts the inwall thermoplastic plastic layer of amalgamation piece and the outer tube wall thermoplastic plastic layer of tubing two ends to be connected, outage is then condensed the plastic layer cooling of above-mentioned fusing.
In the present embodiment, the electric heating wire 8 that is layed between the outer tube wall of amalgamation piece and tubing two ends to be connected is netted electric heating wire.In addition, owing to the plastics that the splicing gap 4 between the amalgamation piece has been melted are filled up naturally, so no longer separately it is handled in this example.
For peephole 6 and exhaust port 7, after bonding the finishing of above-mentioned amalgamation piece layer, it is filled up with the hot melting plastic enthesis.
Embodiment 3: shown in Fig. 5,6, pipe connecting method in the present embodiment is similar to embodiment 2, promptly still adopts individual layer amalgamation piece layer 3 and bonding with hot melting and connecting method enforcement, and different is, in the present embodiment, above-mentioned amalgamation piece layer 3 is to be spliced with three amalgamation pieces.Simultaneously, the internal surface of employed amalgamation piece (treating gluing of surfaces) is preset with electric heating wire 8 (shown in Fig. 7～10) in the present embodiment, therefore no longer lays electric heating wire between the outer tube wall of amalgamation piece and tubing two ends to be connected.
The concrete adhering method of the amalgamation piece layer 3 in this example is: the gluing of surfaces for the treatment of that will be preset with the amalgamation piece of electric heating wire 8 is affixed to the outer tube wall of tubing two ends to be connected, electric heating wire on the amalgamation piece 8 energisings then, make the outer tube wall fusing for the treatment of gluing of surfaces and tubing two ends to be connected of amalgamation piece, simultaneously in galvanization, the amalgamation piece is imposed external force, make the amalgamation piece tight to the second amalgamation piece laminating, outage then allows the plastic cool of fusing condense.
In addition, in the present embodiment splicing of the amalgamation piece in amalgamation piece layer gap 4 is made following processing: a, settled the splicing block 5 that the splicing of amalgamation piece is clearance filled, the splicing surface of this splicing block has the thermoplastic plastic layer and is preset with electric heating wire 9 (shown in Figure 11,12); B, the splicing block of settling 5 is imposed active force, make the splicing surface thermoplastic plastic layer of splicing block 5 be adjacent to the splicing gap with force application device (herein for thrustor); C, the electric heating wire on splicing block 9 energisings, the heat that allows electric heating wire 9 send will splices that surperficial thermoplastic plastic layer's and splicing block splicing surface thermoplastic plastic layer fuses into one outside the gap, and outage is then cooled off the plastic layer of above-mentioned fusing and condensed.
Embodiment 4: shown in Figure 13,14, the pipe connecting method in the present embodiment is similar to embodiment 3, promptly still adopts individual layer amalgamation piece layer 3 and bonding with hot melting and connecting method enforcement, and amalgamation piece layer also is spliced by three amalgamation pieces.Different is in the present embodiment, the splicing of the amalgamation piece in amalgamation piece layer gap 4 to be made following processing: a, lay electric heating wire 9 (shown in Figure 15,16) in the splicing gap 4 of amalgamation piece; B, on electric heating wire, settle and to splice the splicing block 5 (as shown in figure 17) that clearance filled splicing surface has the thermoplastic plastic layer; C, the splicing block of settling 5 is imposed active force, make the splicing surface thermoplastic plastic layer of splicing block be close to surface outside the above-mentioned splicing gap that is equipped with electric heating wire with force application device (herein for thrustor); D, to electric heating wire 9 energising, the heat that allows electric heating wire 9 send will splice that surperficial thermoplastic plastic layer's and splicing block splicing surface thermoplastic plastic layer fuses into one outside the gap, outage is then cooled off the plastic layer of above-mentioned fusing and is condensed.
Embodiment 5: shown in Figure 18,19, pipe connecting method in the present embodiment is earlier to wait that the end to be connected of taking over material 1,2 draws close, aligns to two sections, again at the outer tube wall of these tubing two ends to be connected bonding first layer amalgamation of tackiness agent piece layer 3, the first bonding amalgamation piece layer 3 be to constitute by three plastics amalgamation pieces, after bonding the finishing, this amalgamation piece layer coats the outer tube wall of two ends to be connected of this tubing 1,2.
For the amalgamation gap 4 of the first amalgamation piece layer, it is bonding then to adopt the method for filling up splicing block 5 in the amalgamation gap to carry out, and the bonding way that is adopted remains the tackiness agent bonding way, and this point is similar to embodiment 1.
In the present embodiment, the amalgamation piece layer bonding at the outer tube wall of tubing two ends to be connected is three layers, and each amalgamation piece layer is overlapping successively, and adjacent amalgamation piece layer is bonding mutually.Promptly be after the first amalgamation piece layer, 3 bonding finishing, again at bonding successively second, third amalgamation piece layer 10,11 of the outer surface of the first amalgamation piece layer.
Second, third amalgamation piece layer 10,11 in this example is made of two amalgamation pieces respectively, and each amalgamation piece is the outer thermoplastic plastic layer of being, inside has the metallo-plastic composite block of metal material layer.On bonding second and third amalgamation piece layer 10,11 o'clock, allow the amalgamation seam of each layer amalgamation piece be crisscross arranged.
Because the second amalgamation piece layer, 10 employed amalgamation piece have the internal surface that thermoplastic constitutes, and the outer surface of the first amalgamation piece layer 3 also has the thermoplastic plastic layer, therefore adopt the bonding second amalgamation piece layer 10 of mode of hot melt adhesion.Concrete adhering method is as follows: lay electric heating wire between the outer surface of the amalgamation piece and the first amalgamation piece layer 3, with force application device (adopting thrustor herein) the amalgamation piece is imposed active force, make the inwall of amalgamation piece be affixed to the outer surface of the first amalgamation piece layer 3 that is equipped with electric heating wire, switch on to electric heating wire, the heat that allows electric heating wire send melts the inwall thermoplastic plastic layer of amalgamation piece and the outer surface thermoplastic plastic layer of the first amalgamation piece layer, outage then, the plastic layer cooling of above-mentioned fusing is condensed, and this process is similar to embodiment 2.
In this example, the electric heating wire of laying between the outer surface of the amalgamation piece and the first amalgamation piece layer also is the heating wire net.
In the present embodiment, adopt mode to last similar hot melt adhesion at bonding the 3rd amalgamation piece layer of the outer surface of the second amalgamation piece layer.
In addition, similar to embodiment 2, the plastics that the amalgamation gap 4 in second, third amalgamation piece layer between each amalgamation piece has been melted are filled up naturally, so no longer separately it is handled in this example.
Claims (10)
1, a kind of connecting means of large-diameter composite metal-plastic pipes, it is characterized in that earlier waiting that the end to be connected of taking over material draws close, aligns to two sections, again at the outer tube wall of these tubing two ends to be connected with the bonding one deck at least of adhering method amalgamation piece layer, bonding amalgamation piece layer the outer tube wall of these tubing two ends to be connected is coated.
2, connecting means as claimed in claim 1, it is characterized in that the bonding amalgamation piece layer of the outer tube wall of tubing two ends to be connected be two-layer or two-layer more than, each amalgamation piece layer is overlapping successively, adjacent amalgamation piece layer is bonding mutually.
3, connecting means as claimed in claim 1 or 2 is characterized in that described adhering method is the hot melt adhesion method.
4, connecting means as claimed in claim 1 or 2 is characterized in that described adhering method is the tackiness agent adhering method.
5, connecting means as claimed in claim 1 or 2 is characterized in that having the amalgamation piece that offers peephole in the set amalgamation piece layer, the perforate direction of described peephole by the outer surface of amalgamation piece towards its internal surface.
6, connecting means as claimed in claim 1 or 2 is characterized in that having the amalgamation piece that offers exhaust port in the set amalgamation piece layer, and described exhaust port connects the inside and outside surface of amalgamation piece.
7, connecting means as claimed in claim 1 or 2 is characterized in that the internal surface of set amalgamation piece has electric heating wire.
8, connecting means as claimed in claim 1 or 2, it is characterized in that bonding in the following manner amalgamation piece layer: have at inwall between the outer surface thermoplastic plastic layer of amalgamation piece layer of the outer tube wall thermoplastic plastic layer of thermoplastic plastic layer's amalgamation piece and tubing two ends to be connected or first front attachment and lay electric heating wire, with force application device the amalgamation piece is imposed active force, make the inwall of amalgamation piece be affixed to the outer surface of the amalgamation piece layer of tube wall outside the tubing that is equipped with electric heating wire or first front attachment, switch on to electric heating wire, allow the outer surface thermoplastic plastic layer fusing of heat that electric heating wire sends with the amalgamation piece layer of the outer tube wall thermoplastic plastic layer of the inwall thermoplastic plastic layer of amalgamation piece and tubing two ends to be connected or first front attachment, outage is then condensed the plastic layer cooling of above-mentioned fusing.
9, connecting means as claimed in claim 1 is characterized in that the splicing of the amalgamation piece in amalgamation piece layer gap is made following processing: a, lays electric heating wire in the splicing gap of amalgamation piece; B, on electric heating wire, settle and to splice the splicing block that clearance filled splicing surface has the thermoplastic plastic layer; C, the splicing block of settling is imposed active force, make the splicing surface thermoplastic plastic layer of splicing block be close to surface outside the above-mentioned splicing gap that is equipped with electric heating wire with force application device; D, to electric heating wire energising, the heat that allows electric heating wire send will splice that surperficial thermoplastic plastic layer's and splicing block splicing surface thermoplastic plastic layer fuses into one outside the gap, outage is then cooled off the plastic layer of above-mentioned fusing and is condensed.
10, connecting means as claimed in claim 1, it is characterized in that the splicing of the amalgamation piece in amalgamation piece layer gap is made following processing: a, settled the splicing block that the splicing of amalgamation piece is clearance filled, the splicing surface of this splicing block has the thermoplastic plastic layer and is preset with electric heating wire; B, the splicing block of settling is imposed active force, make the splicing surface thermoplastic plastic layer of splicing block be adjacent to the splicing gap with force application device; The energising of c, the electric heating wire on splicing block, the heat that allows electric heating wire send will splices that surperficial thermoplastic plastic layer's and splicing block splicing surface thermoplastic plastic layer fuses into one outside the gap, and outage is then cooled off the plastic layer of above-mentioned fusing and condensed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128929 CN1342860A (en) | 2001-10-08 | 2001-10-08 | Method for connecting large-diameter composite metal-plastic pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128929 CN1342860A (en) | 2001-10-08 | 2001-10-08 | Method for connecting large-diameter composite metal-plastic pipes |
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| Publication Number | Publication Date |
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| CN1342860A true CN1342860A (en) | 2002-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01128929 Pending CN1342860A (en) | 2001-10-08 | 2001-10-08 | Method for connecting large-diameter composite metal-plastic pipes |
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| CN (1) | CN1342860A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278421A (en) * | 2018-03-22 | 2018-07-13 | 冯光淑 | Assembly type plastic pressure pipe, production mould, production method and plastic plate, piping lane |
| CN110154082A (en) * | 2019-05-16 | 2019-08-23 | 浙江大学 | A kind of software mechanical arm and preparation method thereof that inside and outside wall is strengthened |
| CN110202728A (en) * | 2019-04-12 | 2019-09-06 | 浙江大学 | Software mechanical arm and preparation method thereof is strengthened in one kind three cavity outer wall fibers winding |
| CN111765316A (en) * | 2020-06-24 | 2020-10-13 | 亳州市谯城区蓝鲸信息科技有限公司 | Reinforcing device and reinforcing method for antibacterial water pipe joint |
-
2001
- 2001-10-08 CN CN 01128929 patent/CN1342860A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278421A (en) * | 2018-03-22 | 2018-07-13 | 冯光淑 | Assembly type plastic pressure pipe, production mould, production method and plastic plate, piping lane |
| CN108278421B (en) * | 2018-03-22 | 2023-12-19 | 冯光淑 | Assembled plastic pressure pipe, production die, production method, plastic plate and pipe gallery |
| CN110202728A (en) * | 2019-04-12 | 2019-09-06 | 浙江大学 | Software mechanical arm and preparation method thereof is strengthened in one kind three cavity outer wall fibers winding |
| CN110154082A (en) * | 2019-05-16 | 2019-08-23 | 浙江大学 | A kind of software mechanical arm and preparation method thereof that inside and outside wall is strengthened |
| CN111765316A (en) * | 2020-06-24 | 2020-10-13 | 亳州市谯城区蓝鲸信息科技有限公司 | Reinforcing device and reinforcing method for antibacterial water pipe joint |
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