CN103363233A - Plastic pipe connecting method - Google Patents
Plastic pipe connecting method Download PDFInfo
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- CN103363233A CN103363233A CN2013102676851A CN201310267685A CN103363233A CN 103363233 A CN103363233 A CN 103363233A CN 2013102676851 A CN2013102676851 A CN 2013102676851A CN 201310267685 A CN201310267685 A CN 201310267685A CN 103363233 A CN103363233 A CN 103363233A
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Abstract
The invention relates to the technical field of pipe connection. A technical problem to be solved is to provide a plastic pipe connecting method, by which connection is firm and reliable, the sealing performance is good and the service life is prolonged. The plastic pipe connecting method comprises the following steps: treating end parts, butting by hot melting, cool for the first time, butting by electric melting, cooling for the second time, performing two-time injection moulding, cooling for the first time and flattening a surface. Through hot melting butting, electric melting butting, two-time injection moulding and three different processes, electric melting sleeves and two pipes are fused, connected and strengthened, and the sealing performance of a whole pipe system and the structural strength after connection can be borne by a hot melting butting area, an electric melting fusing area and a two-time injection moulding area together, so that a triple sealing, strengthening and protecting effect is achieved, and the safety and the reliability of the whole pipe system can be greatly improved, therefore, the service life of the whole pipe system is prolonged.
Description
Technical field
The present invention relates to tubing interconnection technique field, more specifically, relate to a kind of plastic tube connecting means.
Background technique
In the prior art, plastic tube can obtain solid and reliable pipe coupling by the mode (main fusion Placement has: the electric smelting connection is connected with hot melt) that fusion connects.The physical process that its fusion connects is: plastic tube is heated to a certain degree, and originally compact arranged molecular chain dissolves bifurcated, and molecular chain connects again so that two parts that are connected are combined into an integral body behind drop in temperature.Owing to being body welding between the plastic tube, so itself intensity of the intensity of joint and tubing is identical, part intensity even can be above the body intensity of tubing.In the tubing construction, interconnection technique is the key of its installation engineering quality, the quality of interconnection technique is one of key factor that affects pipe workpiece quality and working life, reliable advanced person's interconnection technique provides guarantee for the extensive use of plastic tube, so the necessary various technology of understanding and grasping the plastic tube connection are to guarantee the Security of plastic duct system.
Application number is the self-pressing electrothermal fusion method for joining that 02114008.1 patent discloses a kind of plastic tube, it mainly is by the plastics connecting sleeve is carried out reaming, thereby be connected tubing and assemble, the connecting sleeve that recycling is swollen produces thermal shrinkage, make the tie layer between cover and the pipe be subject to uniform pressure, then to the electric heating wire heating power of tie layer, make the plastically welding of connection aspect together, thereby realized that the fusion between pipe fitting connects, because this connecting means need adopt the plug with taper by jack or other compression tools the adapter sleeve endoporus to be carried out reaming, so the artifical influence factor during operation is very large, and force by jack equal pressure instrument and adapter sleeve to be carried out reaming process, can cause to a certain degree damage to the degree of finish of the strength character of sleeve pipe and internal surface thereof, and after jack or other compression tools are laid down, adapter sleeve can be subject to very large contraction and reply the power effect, so that very large reversal deformation may occur electro-fusion sleeve.Be out of shape the tightness, reliability and the Security that badly influence pipe-line system after assembling and the electric smelting fusion when excessive, bury potential safety hazard for the use of whole pipe-line system.
Summary of the invention
The present invention is intended to solve the problems of the technologies described above at least to a certain extent.
The purpose of this invention is to provide a kind of firm and reliable connection, good airproof performance improves the plastic tube connecting means in working life.
The technical solution adopted for the present invention to solve the technical problems is: a kind of plastic tube connecting means may further comprise the steps successively: end portion treatment, heat-melting butt-joint, cooling one, electric smelting docking, cooling two, quadric injection mould, cooling three, flat surface.
The present invention fuses reinforcement by connection by heat-melting butt-joint, electric smelting docking and three kinds of different technology modes of quadric injection mould to electro-fusion sleeve and two pipe fittings; structural strength after the sealing of whole tube system and the connection can be respectively by heat-melting butt-joint district, electric smelting fusion zone and quadric injection mould district shared; played the protective action that triple seal is strengthened; can greatly improve the safety reliability of whole tube system, thereby prolong the working life of whole tube system.
In one embodiment, described end portion treatment is processed for the end link position of pipe fitting one that needs are connected and pipe fitting two carries out cutting, in order to form step-like structure in the end, and the end plane milling is smooth.Preferably, the end link position of pipe fitting one and pipe fitting two forms step-like structure through ring or conical cut-out material.
In one embodiment, described heat-melting butt-joint is that the end link position of pipe fitting one and pipe fitting two is in the same place by melting connection.
In one embodiment, described electric smelting docking is for moving to the position of pipe fitting one and pipe fitting two heat-melting butt-joints in the neutral position in the electro-fusion sleeve, and effectively be fixedly clamped with anchor clamps, pass into electric current for two terminal of electro-fusion sleeve, make the metallic resistance silk heating up in the electro-fusion sleeve, the metallic resistance silk of high temperature becomes the outer wall of pipe fitting one, pipe fitting two and the inwall of electro-fusion sleeve into molten state, thereby allows pipe fitting one, pipe fitting two fuse together with electro-fusion sleeve.
In one embodiment, described quadric injection mould allows melting charge be full of whole quadric injection mould space and secondary injection mole for injecting melting charge by the secondary injection mole.
In one embodiment, described flat surface polishes flat for the outer surface with electro-fusion sleeve.
In a preferred implementation, after finishing, connection carries out the pressure testing validation test.
In a preferred implementation, the pipe fitting one that need to connect and the skin of pipe fitting two are polythene material, and internal layer is wearing layer, and the material of wearing layer is superhigh molecular weight polyethylene material.
In a preferred implementation, the electro-fusion sleeve and pipe fitting one, the pipe fitting two that are used for the electric smelting docking are same model polyethylene pipe series products, and the used melting charge of quadric injection mould adopts and electro-fusion sleeve same model material.
The invention has the beneficial effects as follows:
1, the present invention fuses reinforcement by connection by heat-melting butt-joint, electric smelting docking and three kinds of different technology modes of quadric injection mould to electro-fusion sleeve and two pipe fittings, structural strength after the sealing of whole tube system and the connection can be respectively by heat-melting butt-joint district, electric smelting fusion zone and quadric injection mould district shared, play the protective action that triple seal is strengthened, can greatly improve whole tube system safety reliability;
2, the internal layer of used pipe fitting is superhigh molecular weight polyethylene material, the friction factor of this material is minimum, has high slide friction, capability, its wear resistance is 6 times of general alloyed steel, stainless 29 times, and 19 times of phenolic resin, 7 times of nylon six, general poly 5 times, because its excellent wear resistance can apply to carry the contour lost material of ore in sand form mud;
3, the connection mouth place adopts quadric injection mould to be sealed, and can prevent the infiltration of silt molecule, guarantees the complete sealing of interface position, thereby prolongs the working life of whole tube system;
4, the present invention is not subject to the impact of environment and personal factor, and the weld bond reliability of institute's connection pipe fitting is high, real realization interface and tubing integrated, can effectively resist the circumference stress of internal pressure generation and axial anti-impact stress.
Description of drawings
Fig. 1 is the connection diagram of one embodiment of the invention.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the structural representation of electro-fusion sleeve in the one embodiment of the invention.
Fig. 4 is the structural representation of pipe fitting one in the one embodiment of the invention.
Fig. 5 is the partial enlarged drawing of Fig. 4.
Fig. 6 is the structural representation of pipe fitting two in the one embodiment of the invention.
Fig. 7 is the partial enlarged drawing of Fig. 6.
Accompanying drawing only is used for exemplary illustration, can not be interpreted as limitation of the present invention; For better explanation embodiment, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; To those skilled in the art, in the accompanying drawing some known configurations and explanation thereof may to omit be understandable.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
To shown in Figure 7, a kind of plastic tube connecting means of the present invention may further comprise the steps successively such as Fig. 1: end portion treatment, heat-melting butt-joint, cooling one, electric smelting docking, cooling two, quadric injection mould, cooling three, flat surface.The present invention fuses reinforcement by connection by heat-melting butt-joint, electric smelting docking and three kinds of different technology modes of quadric injection mould to electro-fusion sleeve and two pipe fittings; structural strength after the sealing of whole tube system and the connection can be respectively by heat-melting butt-joint district, electric smelting fusion zone and quadric injection mould district shared; played the protective action that triple seal is strengthened; can greatly improve the safety reliability of whole tube system, thereby prolong the working life of whole tube system.
Concrete Connection Step of the present invention is:
1, end portion treatment: the pipe fitting 1 that needs are connected and the end link position of pipe fitting 22 carry out cutting to be processed, in order to form respectively step-like structure 11 and step-like structure 21 in the end of pipe fitting 1 and pipe fitting 22, and the end plane milling is smooth.In the present embodiment, the end link position of pipe fitting 1 and pipe fitting 22 is through ring or conical cut-out material, thus formation step-like structure 11 and step-like structure 21.Wherein specifically excising size determines according to actual needs;
2, heat-melting butt-joint: the end link position with heater heating pipe fitting 1 and pipe fitting 22 makes it reach molten state, again with the end part aligning of pipe fitting 1 and pipe fitting 22 and firmly clamping, make pipe fitting 1 and pipe fitting 22 be in the same place docking backstage scalariform structure 11 and the step-like structure 21 common quadric injection mould spaces 3 that form by melting connection;
3, cooling one: keep constant clamping force until the melting charge cooling at heat-melting butt-joint position;
4, electric smelting docking: the outer surface at heat-melting butt-joint position is polished flat, to keep slickness, then the heat-melting butt-joint position of pipe fitting 1 and pipe fitting 22 is moved to neutral position in the electro-fusion sleeve 4, and effectively be fixedly clamped with anchor clamps, pass into electric current for two terminal 41 of electro-fusion sleeve 4, make metallic resistance silk 42 heating ups of 4 li of electro-fusion sleeves, the metallic resistance silk 42 of high temperature becomes the outer wall of pipe fitting 1, pipe fitting 22 and the inwall of electro-fusion sleeve 4 into molten state, thereby allows pipe fitting 1, pipe fitting 22 fuse together with electro-fusion sleeve 4;
5, cooling two: cooling a period of time, allow pipe fitting 1, pipe fitting 22 fully fuse firmly with electro-fusion sleeve 4 threes;
6, quadric injection mould: inject melting charge by secondary injection mole 43, allow melting charge be full of whole quadric injection mould space 3 and secondary injection mole 43, wherein the number of secondary injection mole 43 and size can be set as required, and secondary injection mole 43 is positioned at the top position in quadric injection mould space 3, so that the melting charge of quadric injection mould can successfully flow into quadric injection mould space 3;
7, cooling three: cooling a period of time, allow storage in quadric injection mould space 3 and the melting charge cooled and solidified of 43 li of secondary injection moles;
8, flat surface: the protrusion material of secondary injection mole 43 outer surfaces is excised, and the outer surface of electro-fusion sleeve 4 is polished flat.
In the present embodiment, after finishing, connection also need carry out the pressure testing validation test, thus reliability and Security after effectively guaranteeing to connect.
In the present embodiment, the pipe fitting 1 that need to connect and the skin of pipe fitting 22 are polythene material, and internal layer is respectively wearing layer 12 and wearing layer 22, and the material of wearing layer 12 and wearing layer 22 is superhigh molecular weight polyethylene material.
In the present embodiment, used electro-fusion sleeve 4 and pipe fitting 1, pipe fitting 22 are same model polyethylene pipe series products, the used melting charge of quadric injection mould adopts and electro-fusion sleeve 4 same model materials, in order to can merge with electro-fusion sleeve 4, pipe fitting 1, pipe fitting 22 better.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all mode of executions exhaustive.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the protection domain of claim of the present invention.
Claims (10)
1. a plastic tube connecting means is characterized in that, may further comprise the steps successively: end portion treatment, heat-melting butt-joint, cooling one, electric smelting docking, cooling two, quadric injection mould, cooling three, flat surface.
2. plastic tube connecting means according to claim 1, it is characterized in that, described end portion treatment is processed for the end link position of pipe fitting one that needs are connected and pipe fitting two carries out cutting, in order to form step-like structure in the end, and the end plane milling is smooth.
3. plastic tube connecting means according to claim 2 is characterized in that, the end link position of pipe fitting one and pipe fitting two forms step-like structure through ring or conical cut-out material.
4. plastic tube connecting means according to claim 1 is characterized in that, described heat-melting butt-joint is that the end link position of pipe fitting one and pipe fitting two is in the same place by melting connection.
5. plastic tube connecting means according to claim 1, it is characterized in that, described electric smelting docking is for moving to the position of pipe fitting one and pipe fitting two heat-melting butt-joints in the neutral position in the electro-fusion sleeve, and effectively be fixedly clamped with anchor clamps, pass into electric current for two terminal of electro-fusion sleeve, make the metallic resistance silk heating up in the electro-fusion sleeve, the metallic resistance silk of high temperature becomes the outer wall of pipe fitting one, pipe fitting two and the inwall of electro-fusion sleeve into molten state, thereby allows pipe fitting one, pipe fitting two fuse together with electro-fusion sleeve.
6. plastic tube connecting means according to claim 1 is characterized in that, described quadric injection mould allows melting charge be full of whole quadric injection mould space and secondary injection mole for injecting melting charge by the secondary injection mole.
7. plastic tube connecting means according to claim 1 is characterized in that, described flat surface polishes flat for the outer surface with electro-fusion sleeve.
8. according to claim 1 to 7 each described plastic tube connecting means, it is characterized in that, after connection is finished, carry out the pressure testing validation test.
9. according to claim 1 to 7 each described plastic tube connecting means, it is characterized in that, the pipe fitting one that need to connect and the skin of pipe fitting two are polythene material, and internal layer is wearing layer, and the material of wearing layer is superhigh molecular weight polyethylene material.
10. according to claim 1 to 7 each described plastic tube connecting means, it is characterized in that, the electro-fusion sleeve and pipe fitting one, the pipe fitting two that are used for the electric smelting docking are same model polyethylene pipe series products, and the used melting charge of quadric injection mould adopts and electro-fusion sleeve same model material.
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| CN201310267685.1A CN103363233B (en) | 2013-06-29 | 2013-06-29 | A kind of plastic tube connecting means |
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| CN201310267685.1A CN103363233B (en) | 2013-06-29 | 2013-06-29 | A kind of plastic tube connecting means |
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| CN103363233B CN103363233B (en) | 2016-03-02 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968177A (en) * | 2014-04-30 | 2014-08-06 | 永高股份有限公司 | External display mark of polyethylene electro-fusion socket pipe fitting and limiting device for resistance wires |
| CN103968176A (en) * | 2014-04-30 | 2014-08-06 | 永高股份有限公司 | Separating binding post for mold core locating of polyethylene electro-fusion pipe fitting |
| CN105402542A (en) * | 2015-12-18 | 2016-03-16 | 浙江伟星新型建材股份有限公司 | Connecting structure and connecting method for reinforced composite pipes |
| CN105587965A (en) * | 2015-08-06 | 2016-05-18 | 崔文亮 | Sealing member and sealing method with pipe |
| CN105905531A (en) * | 2016-06-02 | 2016-08-31 | 长春天地聚氨酯科技有限公司 | Middle portion groove of scraper conveyor and manufacturing method of middle portion groove |
| CN105927803A (en) * | 2016-07-19 | 2016-09-07 | 华电青岛热力有限公司 | Installation method of waterproof-type electric-melting heat-preservation joint |
| CN105953015A (en) * | 2016-07-19 | 2016-09-21 | 华电青岛热力有限公司 | Waterproof type electric hot-melting insulation joint |
| CN105972344A (en) * | 2016-05-25 | 2016-09-28 | 北京航空航天大学 | Connection structure of large-diameter enhanced pipes |
| CN106395256A (en) * | 2016-06-02 | 2017-02-15 | 长春天地聚氨酯科技有限公司 | Low-weight scraper conveyer |
| CN106738617A (en) * | 2016-12-27 | 2017-05-31 | 重庆永高塑业发展有限公司 | The preparation method of built-in metal piece shape plastic pipe |
| CN112959682A (en) * | 2021-01-29 | 2021-06-15 | 吴江港华燃气有限公司 | Safe connection process for polyethylene gas pipeline |
| CN114251532A (en) * | 2021-12-08 | 2022-03-29 | 华创天元实业发展有限责任公司 | Novel reinforced electric hot melting belt and connection mode for connecting novel reinforced electric hot melting belt with plastic pipeline |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103968177A (en) * | 2014-04-30 | 2014-08-06 | 永高股份有限公司 | External display mark of polyethylene electro-fusion socket pipe fitting and limiting device for resistance wires |
| CN103968176A (en) * | 2014-04-30 | 2014-08-06 | 永高股份有限公司 | Separating binding post for mold core locating of polyethylene electro-fusion pipe fitting |
| CN103968176B (en) * | 2014-04-30 | 2015-12-30 | 永高股份有限公司 | Polyethylene fused pipe core rod location separated type wiring terminal |
| CN103968177B (en) * | 2014-04-30 | 2016-03-02 | 永高股份有限公司 | With the polyethylene electric-melting bellmouth pipe fitting of outer show tags and resistance wire limit stoper |
| CN105587965A (en) * | 2015-08-06 | 2016-05-18 | 崔文亮 | Sealing member and sealing method with pipe |
| CN105402542A (en) * | 2015-12-18 | 2016-03-16 | 浙江伟星新型建材股份有限公司 | Connecting structure and connecting method for reinforced composite pipes |
| CN105972344B (en) * | 2016-05-25 | 2018-05-01 | 北京航空航天大学 | A kind of connection structure of heavy caliber enhancing tubing |
| CN105972344A (en) * | 2016-05-25 | 2016-09-28 | 北京航空航天大学 | Connection structure of large-diameter enhanced pipes |
| CN106395256A (en) * | 2016-06-02 | 2017-02-15 | 长春天地聚氨酯科技有限公司 | Low-weight scraper conveyer |
| CN105905531A (en) * | 2016-06-02 | 2016-08-31 | 长春天地聚氨酯科技有限公司 | Middle portion groove of scraper conveyor and manufacturing method of middle portion groove |
| CN106395256B (en) * | 2016-06-02 | 2019-07-26 | 黑龙江天地承尚科技有限公司 | A kind of light body scratch board conveyor |
| CN105927803A (en) * | 2016-07-19 | 2016-09-07 | 华电青岛热力有限公司 | Installation method of waterproof-type electric-melting heat-preservation joint |
| CN105953015A (en) * | 2016-07-19 | 2016-09-21 | 华电青岛热力有限公司 | Waterproof type electric hot-melting insulation joint |
| CN105953015B (en) * | 2016-07-19 | 2019-04-02 | 华电青岛热力有限公司 | A kind of water-proof type electric heating melting thermal insulation joint |
| CN105927803B (en) * | 2016-07-19 | 2019-05-17 | 华电青岛热力有限公司 | A kind of water-proof type electric heating melting thermal insulation joint installation method |
| CN106738617A (en) * | 2016-12-27 | 2017-05-31 | 重庆永高塑业发展有限公司 | The preparation method of built-in metal piece shape plastic pipe |
| CN112959682A (en) * | 2021-01-29 | 2021-06-15 | 吴江港华燃气有限公司 | Safe connection process for polyethylene gas pipeline |
| CN114251532A (en) * | 2021-12-08 | 2022-03-29 | 华创天元实业发展有限责任公司 | Novel reinforced electric hot melting belt and connection mode for connecting novel reinforced electric hot melting belt with plastic pipeline |
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