CN113997577B - Electric fusion welding machine and use method thereof - Google Patents

Electric fusion welding machine and use method thereof Download PDF

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Publication number
CN113997577B
CN113997577B CN202111247717.2A CN202111247717A CN113997577B CN 113997577 B CN113997577 B CN 113997577B CN 202111247717 A CN202111247717 A CN 202111247717A CN 113997577 B CN113997577 B CN 113997577B
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China
Prior art keywords
pipe
wall
machine body
electric
welding machine
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CN202111247717.2A
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Chinese (zh)
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CN113997577A (en
Inventor
印军华
王遇春
邱天侠
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Shanghai Hydrau Mechanical & Electronic Engineering Co ltd
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Shanghai Hydrau Mechanical & Electronic Engineering Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/02Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241Cutting, e.g. by using waterjets, or sawing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5221Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The application relates to the technical field of pipeline welding and discloses an electric fusion welding machine, which comprises a machine body, wherein an output cable is arranged on the machine body, an electric plug is arranged at one end, far away from the machine body, of the output cable, a connecting pipe is arranged at the outer side of the machine body, a plurality of resistance wires are embedded in the inner walls of the two ends of the connecting pipe, a plug-in port for plugging the electric plug is arranged at the outer side of the connecting pipe, the resistance wires are electrically connected with the electric plug, and the whole process has the effects of convenience in connection and high maintenance efficiency.

Description

Electric fusion welding machine and use method thereof
Technical Field
The application relates to the technical field of pipeline welding, in particular to an electric fusion welding machine and a use method thereof.
Background
The gas pipeline is a gas pipeline used in daily life of people, is usually made of a weldable PE material, is deeply buried underground for a long time, and needs to be maintained and checked by staff at irregular intervals.
Usually, some pipeline parts need maintenance personnel to repair the damaged parts of the pipeline due to external environmental factors such as artificial construction damage, geological movement damage, chemical corrosion damage and the like. The common repairing method cuts off the air leakage part, and welds a new section of pipeline at the cut part, thereby realizing repairing.
In the existing welding process, a pipeline hot-melting device is generally used for hot-melting one end of the pipeline, and meanwhile, one end of a newly connected pipeline is hot-melted, and after the pipeline is hot-melted to a certain temperature, the hot-melting device is taken off, so that the hot-melting end of the new pipeline and the hot-melting end of the old pipeline are welded. After the operation is finished, the old pipeline at the other end of the cutting part is heated and welded. And finally, the whole repair process is completed.
In view of the above-described related art, the inventors consider that the welding is performed practically using the above-described hot-melting device, and the welding efficiency is low.
Disclosure of Invention
In order to improve the welding efficiency and welding quality of pipelines, the application provides an electric fusion welding machine and a use method thereof.
In a first aspect, the present application provides an electric fusion welding machine, which adopts the following technical scheme:
the utility model provides an electric fusion welding machine, includes the organism, be provided with output cable on the organism, the one end that the organism was kept away from to output cable is provided with electric plug, the outside of organism is provided with the connecting pipe, all inlay on the both ends inner wall of connecting pipe and be equipped with a plurality of resistance wire, the outside of connecting pipe is provided with the grafting mouth that is used for pegging graft electric plug, resistance wire and electric plug electricity are connected.
Through adopting above-mentioned technical scheme, select suitable connecting pipe according to the diameter of maintenance pipeline, insert the one section of gas pipeline cutting position and establish in the inner chamber of connecting pipe, the other end is inserted and is established in the other end inner chamber of connecting pipe, then insert the electric plug of organism and establish in the grafting mouth, make the welding machine organism circular telegram, resistance wire generates heat, thereby with the inner wall melting of connecting pipe, simultaneously with the tip outer wall melting of gas pipeline, wait for after the cooling, connecting pipe just fixed connection is in the cutting position department of gas pipeline, whole process need not to be connected two sections separately hot melt, convenient connection, maintenance efficiency is high.
Optionally, the connecting pipe includes installation pipe, integrated into one piece at the welded tube at installation pipe both ends, the thickness of installation pipe is greater than the thickness of welded tube, the resistance wire sets up on the inner wall of welded tube, the grafting mouth sets up on the lateral wall of welded tube.
Through adopting above-mentioned technical scheme for the welding pipe forms the step with the position of installing tube contact, inserts the tip of gas pipeline when establishing to the inner chamber of installing tube, until the tip butt of gas pipeline at the tip of installing tube, alright heat welding this moment.
Optionally, an annular groove is formed in the inner wall of one end, far away from the installation tube, of the welding tube, and a hot-melting adhesive tape is embedded in the annular groove.
Through adopting above-mentioned technical scheme, the welding pipe is heated the back, and hot melt adhesive tape is heated and melts to make the gap of welding pipe and old pipeline contact by hot melt adhesive shutoff, hot melt adhesive has increased the steadiness of being connected between welding pipe and the old pipeline simultaneously.
Optionally, the welding pipe is kept away from and is fixed with the pyrocondensation pipe on the one end outer wall of installation tube coaxial.
Through adopting above-mentioned technical scheme, after the fusion pipe is heated, with heat transfer to pyrocondensation pipe position department, pyrocondensation pipe preheats locking to make fusion pipe and gas pipeline position confined more closely.
Optionally, a plurality of recess has been seted up to the inner wall of fusion pipe, adjacent be fixed with a plurality of inflation arch between the recess, the bellied top of inflation is integrative to be fixed with the spike, the both sides edge of spike is the cockscomb structure.
Through adopting above-mentioned technical scheme, the bellied material of inflation is the expansion rubber material of preheating expansion, carries out the in-process of heating to welded tube position, and the outer wall of old pipeline also is melted, and the glue solution after melting flows to the inner chamber of recess, and the bellied inflation of thermal expansion is met simultaneously for the spike inserts and establishes in the outer wall of old pipeline, and after the cooling, old pipeline and new pipeline bond each other, has further promoted the stability of pipeline connection.
Optionally, the machine body is provided with a fingerprint module, and the machine body is also provided with a control module for receiving signals of the fingerprint module and driving the electric loop of the machine body to operate.
By adopting the technical scheme, fingerprint input can be performed on staff in a company in advance, and only the staff inputting the fingerprint can have authority to use the welding machine, and the control module is used for comparing fingerprint information and controlling the conduction of a welding machine electric loop.
Optionally, the machine body is further provided with a wireless module, and the wireless module is used for receiving the fingerprint module signal, sending the fingerprint information to the information inquiry platform for comparison, and feeding back the compared result to the control module.
Through adopting above-mentioned technical scheme, wireless module is wireless network card, and fingerprint module is electric capacity fingerprint module, before the staff welds, enters staff's fingerprint information through fingerprint module, and control module is microprocessor, and control module passes through wireless network card with fingerprint information transmission to special operation information inquiry platform, compares whether fingerprint staff has the employee's license, feeds back to microprocessor after inquiring relevant information, and microprocessor switches on the electric loop of welding machine to the staff alright carry out normal welding operation.
In a second aspect, the application provides a use method of an electric fusion welding machine, which adopts the following technical scheme:
optionally, a method for using the electric fusion welding machine comprises the following steps,
step 1, measuring and scribing;
step 2, removing oxide skin;
step 3, sleeving a connecting pipe;
step 4, connecting an electric fusion welding machine and starting up for authentication;
and 5, inputting welding parameters and welding.
Through adopting above-mentioned technical scheme, according to the length of hot melt pipe in advance, the outer wall marking line at the gas pipeline to confirm the gas pipeline and wait that the link stretches into the degree of depth in the hot melt pipe inner chamber, then scrape the scale to the practical scraper of stretching into the end of gas pipeline, then coaxial setting of connecting pipe is between two sections free ends of gas pipeline, peg graft the electric plug of output cable on the interface, welder authentication is carried out to the welding machine, and input relevant welding parameter, thereby heat the resistance wire, make the both ends of connecting pipe and gas pipeline butt fusion each other.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the whole process does not need to connect two sections by hot melting separately, and has convenient connection and high maintenance efficiency.
After the welding pipe is heated, the hot melt adhesive tape is heated and melted, so that a gap between the welding pipe and the old pipeline is blocked by the hot melt adhesive, and meanwhile, the connection stability between the welding pipe and the old pipeline is improved by the hot melt adhesive.
Through setting up fingerprint module, wireless module and control module, prevent that no witness from using the welding machine.
Drawings
Fig. 1 is a schematic overall structure of the present embodiment.
Fig. 2 is a cross-sectional view of the connection pipe in the present embodiment.
Reference numerals: 1. a body; 2. an output cable; 3. an electrical plug; 4. a connecting pipe; 5. a resistance wire; 6. an interface; 7. installing a pipe; 8. a fusion pipe; 9. an annular groove; 10. a hot melt adhesive tape; 11. a heat shrinkage tube; 12. a groove; 13. an expansion protrusion; 14. a spike.
Detailed Description
The application is described in further detail below with reference to fig. 1-2.
In a first aspect, an embodiment of the application discloses an electric fusion welding machine.
Referring to fig. 1, an electric fusion welding machine comprises a machine body 1, wherein the machine body 1 is a three-item electric fusion welding machine, a display screen and a control knob are arranged on the outer wall of the machine body 1, welding parameter information of the welding machine and a setting interface can be observed through the display screen, two output cables 2 are further connected to the outer wall of the machine body 1, and the output cables 2 are used for outputting welding current.
Referring to fig. 1, a fingerprint module is provided on a machine body 1 of the welding machine, the fingerprint module is a fingerprint identification module, and is installed on a machine shell of the machine body 1, the fingerprint module is mainly used for inputting fingerprint information of a user, a control module is also provided in the machine shell 1, and the control module is a single chip microcomputer, namely a microprocessor, and is mainly used for processing the fingerprint information and controlling whether to start up the machine body 1.
Referring to fig. 1, a wireless module is further provided on the machine body 1, the wireless module is a wireless network card module, the wireless module is used for networking the whole machine body 1 with the outside, after a user inputs fingerprint information, the control module sends the fingerprint information to an information system of the information inquiry platform for searching and comparing, when the identity of a person detecting the fingerprint information has an electronic operation certificate, the wireless module feeds back feedback information to the control module, so that the control module controls the electric loop of the welding machine to be conducted, normal operation can be realized, and otherwise, the welding machine is not started.
Referring to fig. 1 and 2, one end of the output cable 2, which is far away from the machine body 1, is fixed with an electrical plug 3, the outer side of the machine body 1 is provided with a connecting pipe 4, the connecting pipe 4 comprises a mounting pipe 7 and welding pipes 8 arranged at two ends of the mounting pipe 7, the mounting pipe 7 is made of an ABS material, and the welding pipes 8 are made of a PE material. The inner wall integrated into one piece of welding pipe 8 has resistance wire 5, is provided with interface 6 on the outer wall of welding pipe 8, connects old gas pipeline's in-process, inserts the tip of old gas pipeline and establishes in the inner chamber of welding pipe 8 for electric plug 3 is pegged graft in interface 6, thereby to resistance wire 5 circular telegram heating, resistance wire 5 melts the inner wall of welding pipe 8, makes the outer wall of old gas pipeline also fuse simultaneously, just makes two sections pipelines butt fusion each other after the final cooling.
Referring to fig. 2, the thickness of the installation tube 7 is twice the thickness of the fusion tube 8, so that the connection portion between the fusion tube 8 and the installation tube 7 is in a step shape, the step-shaped arrangement limits the depth of the gas pipeline extending into the fusion tube 8, at this time, the gas pipeline can be scribed on the outer side, and the operation of scraping oxide scale is performed on the outer side of the gas pipeline between the scribing and the end portion.
Referring to fig. 2, an annular groove 9 is milled on the inner wall of one end of the welding pipe 8 far away from the installation pipe 7, and a solid hot melt adhesive tape 10 is embedded in the inner cavity of the annular groove 9, but the hot melt adhesive tape 10 is heated and melted in the process of heating the welding pipe 8, so that the hot melt adhesive further seals the gap between the welding pipe 8 and the outer wall of the gas pipe, and meanwhile, the connection strength between the welding pipe 8 and the gas pipe is further enhanced.
Referring to fig. 2, a heat shrinkage tube 11 is further coaxially arranged on the outer wall of one end of the welding tube 8 far away from the mounting tube 7, the heat shrinkage tube 11 is fixedly connected with the welding tube 8, at this time, the gas pipeline is coaxially positioned in the inner cavity of the heat shrinkage tube 11, and the heat shrinkage tube 11 is heated and shrunk in the process of heating the welding tube 8, so that a gap between the gas pipeline and the heat shrinkage tube is further blocked.
Referring to fig. 2, a plurality of grooves 12 are formed in the upper sea of the inner wall of the fusion pipe 8, the inner wall of each groove 12 is arc-shaped, expansion protrusions 13 are fixed between adjacent grooves 12, the expansion protrusions 13 are made of expansion rubber, the expansion protrusions 13 expand and bulge after being heated, spines 14 are integrally fixed on one end side wall of the gas pipeline, two sides of each spine 14 are saw-tooth-shaped, after the expansion protrusions 13 expand after being heated, the spines 14 are spliced on the outer wall of the gas pipeline after being subjected to hot melting, meanwhile, glue solution in the hot melting state of the outer wall of the gas pipeline flows into the inner cavity of each groove 12, when the gas pipeline is waited to be subjected to hot melting solidification, the outer wall of the gas pipeline and the inner wall of the fusion pipe 8 are fused into a whole, and at the moment, the power-down plug 3 is disassembled, so that repair and maintenance of the gas pipeline are realized.
In a second aspect, an embodiment of the application discloses a method for using an electric fusion welding machine.
Referring to fig. 1 and 2, a method of using an electric fusion welding machine, comprising the steps of,
and 1, measuring and scribing, namely inserting one end of a pipe 8 to be welded into an inner cavity of the welded pipe 8 until the end of the gas pipeline is abutted on the end face of the mounting pipe 7, and scratching scale marks on the outer wall of the gas pipeline.
And (2) removing oxide scales after scribing is completed, and scraping the outer wall of the gas pipeline between the scribing part and the end part of the gas pipeline by a scraper.
Then, the step 3 is performed to sleeve the connecting pipe 4, and the connecting pipe 4 is sleeved between two free ends of the gas pipeline, so that two ends of the gas pipeline are respectively inserted into the corresponding welding pipes 8.
And step 4, connecting the electric fusion welding machine and starting up for authentication, and plugging the electric plug 3 on the output cable into the plugging port 6, so that the personnel with the employee certificate can carry out fingerprint identification and start up, and the electric fusion welding machine is started up and is in a start-up state after the authentication is successful.
Finally, step 5 is carried out, welding parameters are input, welder information is needed to be input in advance, a certain button is pressed to return to a parameter mode page after completion of filling, welding voltage, welding time, cooling time, ambient temperature and compensation temperature are set according to the parameter mode page, and corresponding pipe diameters, materials and resistance values of pipe fittings are selected. After the input of the corresponding parameters is completed, the welding machine enters a welding state and heats the resistance wire 5.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (5)

1. An electric fusion welding machine comprising a machine body (1), characterized in that: the utility model discloses a high-voltage cable connector, including organism (1), be provided with output cable (2) on organism (1), the one end that organism (1) was kept away from to output cable (2) is provided with electric plug (3), the outside of organism (1) is provided with connecting pipe (4), all inlay on the both ends inner wall of connecting pipe (4) is equipped with a plurality of resistance wire (5), the outside of connecting pipe (4) is provided with jack (6) that are used for pegging graft electric plug (3), resistance wire (5) are connected with electric plug (3) electricity, connecting pipe (4) are including installing pipe (7), integrated into one piece in welded pipe (8) at installing pipe (7) both ends, the thickness of installing pipe (7) is greater than the thickness of welded pipe (8), resistance wire (5) set up on the inner wall of welded pipe (8), jack (6) set up on the lateral wall of welded pipe (8), a plurality of recess (12) have been seted up to the inner wall of welded pipe (8), adjacent be fixed with a plurality of expansion arch (13) between recess (12), expansion arch (13) are the tip (14) are fixed with sharp edge (14) in a whole.
2. An electric fusion welding machine according to claim 1, wherein: an annular groove (9) is formed in the inner wall of one end, far away from the mounting pipe (7), of the welding pipe (8), and a hot melting adhesive tape (10) is embedded in the annular groove (9).
3. An electric fusion welding machine according to claim 1, wherein: and a heat shrinkage tube (11) is coaxially fixed on the outer wall of one end, far away from the mounting tube (7), of the welding tube (8).
4. An electric fusion welding machine according to claim 1, wherein: the machine body (1) is provided with a fingerprint module, and the machine body (1) is also provided with a control module which is used for receiving signals of the fingerprint module and driving the electric loop of the machine body (1) to operate.
5. An electric fusion welding machine according to claim 1, wherein: the machine body (1) is also provided with a wireless module, and the wireless module is used for receiving fingerprint module signals, sending fingerprint information to the information inquiry platform for comparison, and feeding back the compared result to the control module.
CN202111247717.2A 2021-10-26 2021-10-26 Electric fusion welding machine and use method thereof Active CN113997577B (en)

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Application Number Priority Date Filing Date Title
CN202111247717.2A CN113997577B (en) 2021-10-26 2021-10-26 Electric fusion welding machine and use method thereof

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Application Number Priority Date Filing Date Title
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CN113997577B true CN113997577B (en) 2023-09-26

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331637A1 (en) * 1993-09-17 1995-03-23 Manibs Spezialarmaturen Process and apparatus for connecting pipe ends by means of a weldable socket
JPH09144977A (en) * 1995-11-27 1997-06-03 Tokyo Gas Co Ltd Electric fusion connector
CN104111124A (en) * 2014-08-06 2014-10-22 大唐双鸭山热电有限公司 Anti-corrosion device of temperature element of high-pressure cylinder of steam turbine
CN204042211U (en) * 2014-07-21 2014-12-24 江苏微特利电机制造有限公司 The cable pipe of explosion-proof electric apparatus casing
DE102013018434A1 (en) * 2013-11-04 2015-05-07 Markus Guldner Method for welding plastic pipes
CN109237185A (en) * 2018-10-30 2019-01-18 中国冶集团有限公司 A kind of connector anti-seepage method of HDPE plastic drainpipe
CN208474757U (en) * 2018-07-19 2019-02-05 福建祥云科创新型管业科技有限公司 A kind of tubing Double seal ring electric melting connection device
CN208764540U (en) * 2018-08-27 2019-04-19 宁波五力电热科技有限公司 A kind of water valve connector of air conditioner heat radiator
KR20200049077A (en) * 2018-10-31 2020-05-08 신영석 Electric Fusion Welding Pipe of Pipe
CN111347682A (en) * 2020-03-18 2020-06-30 高友华 Electric fusion welding method for PE pipe
CN112976592A (en) * 2021-02-24 2021-06-18 四川亚大塑料制品有限公司 Electric hot melting pipe fitting device with water pipeline and electric hot melting welding method with water pipeline
CN213512606U (en) * 2020-11-13 2021-06-22 承德盛金维保温材料有限公司 Double-deck hot melt interface insulation construction
CN213871593U (en) * 2020-10-06 2021-08-03 东莞市超杰硅橡胶制品有限公司 Rubber hose with quick joint
CN113513648A (en) * 2021-07-01 2021-10-19 山东东宏管业股份有限公司 Large-caliber steel wire mesh framework plastic composite pipe connecting structure and implementation method thereof

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331637A1 (en) * 1993-09-17 1995-03-23 Manibs Spezialarmaturen Process and apparatus for connecting pipe ends by means of a weldable socket
JPH09144977A (en) * 1995-11-27 1997-06-03 Tokyo Gas Co Ltd Electric fusion connector
DE102013018434A1 (en) * 2013-11-04 2015-05-07 Markus Guldner Method for welding plastic pipes
CN204042211U (en) * 2014-07-21 2014-12-24 江苏微特利电机制造有限公司 The cable pipe of explosion-proof electric apparatus casing
CN104111124A (en) * 2014-08-06 2014-10-22 大唐双鸭山热电有限公司 Anti-corrosion device of temperature element of high-pressure cylinder of steam turbine
CN208474757U (en) * 2018-07-19 2019-02-05 福建祥云科创新型管业科技有限公司 A kind of tubing Double seal ring electric melting connection device
CN208764540U (en) * 2018-08-27 2019-04-19 宁波五力电热科技有限公司 A kind of water valve connector of air conditioner heat radiator
CN109237185A (en) * 2018-10-30 2019-01-18 中国冶集团有限公司 A kind of connector anti-seepage method of HDPE plastic drainpipe
KR20200049077A (en) * 2018-10-31 2020-05-08 신영석 Electric Fusion Welding Pipe of Pipe
CN111347682A (en) * 2020-03-18 2020-06-30 高友华 Electric fusion welding method for PE pipe
CN213871593U (en) * 2020-10-06 2021-08-03 东莞市超杰硅橡胶制品有限公司 Rubber hose with quick joint
CN213512606U (en) * 2020-11-13 2021-06-22 承德盛金维保温材料有限公司 Double-deck hot melt interface insulation construction
CN112976592A (en) * 2021-02-24 2021-06-18 四川亚大塑料制品有限公司 Electric hot melting pipe fitting device with water pipeline and electric hot melting welding method with water pipeline
CN113513648A (en) * 2021-07-01 2021-10-19 山东东宏管业股份有限公司 Large-caliber steel wire mesh framework plastic composite pipe connecting structure and implementation method thereof

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