CN107364051A - A kind of polyethylene pipe welding firing equipment and its heating means - Google Patents
A kind of polyethylene pipe welding firing equipment and its heating means Download PDFInfo
- Publication number
- CN107364051A CN107364051A CN201710825106.9A CN201710825106A CN107364051A CN 107364051 A CN107364051 A CN 107364051A CN 201710825106 A CN201710825106 A CN 201710825106A CN 107364051 A CN107364051 A CN 107364051A
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- China
- Prior art keywords
- interior
- cartridge heater
- external heat
- firing equipment
- explosion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
Abstract
The invention discloses a kind of polyethylene pipe welding firing equipment and its heating means,It is related to natural gas PE piping chamber external welding apparatus fields,Interior bucket is located at tub,Outer barrel inner surface is covered with external heat cylinder,The outer surface of interior bucket is covered with interior cartridge heater,Outer barrel inward flange is provided with guide ring,Pipeline is heated along guide ring to enter between external heat cylinder and interior cartridge heater,Right side is provided with locating ring between external heat cylinder and interior cartridge heater,Locating ring limitation is heated the position of pipe,Interior bucket left side is provided with inside and outside wall fixing seal ring,Outer barrel right side is provided with explosion-proof snap joint one,And explosion-proof snap joint one is connected with external heat cylinder terminals,Interior bucket right side is provided with explosion-proof snap joint two,And explosion-proof snap joint two is connected with interior cartridge heater terminals,Present invention auxiliary heating preheating pipe,When pipe temperature reaches more than 0 degree Celsius,Heat-melting butt-joint and electric fusion welding are carried out again,The non-plastic fracture length of electric melting pipe fittings can effectively be reduced,Improve combustion gas PE pipeline construction construction qualities.
Description
Technical field
The invention belongs to natural gas PE piping chamber external welding apparatus fields, specifically, the present invention relates to a kind of polyethylene
Pipeline welding firing equipment and its heating means.
Background technology
According to《Polyvinyl fuel gas pipeline engineering technology code》The 5.1.5 articles regulation pipe hot melting or electricity in CJJ63-2008
The molten environment temperature connected is preferably in the range of -5 to 45 DEG C.Northern area PE pipeline winter construction subject matters are outdoor environment temperatures
Too low with mother metal temperature, mean temperature reaches -15 DEG C outside winter room, and reachable -25 DEG C of outdoor tubing temperature.Outside time autumn and winter room
Pipeline, which is placed in outdoor vapor easily in pipe surface frosting, welding, influences welding quality.Gas ductwork winter speedily carries out rescue work, robs leakage engineering
Unavoidably, as coal changes the increase of gas engineering, the welding winter construction of PE pipes also increases therewith, to ensure that PE is managed under cryogenic conditions
Welding quality, according to PE pipes specification produce winter outdoor work PE pipe immediately heating, surface dehumidifying, heat-preserving equipment.
The situation and characteristic and defect of like product in the market:
(1)Tubing preheating uses electric heating wind.Shortcoming:Due to polythene material poor thermal conductivity, heat transfer rate is slow, simple right using heat
Stream mode of heating can cause mother metal temperature uneven, and heating effect is poor, heat time length, while potential safety hazard be present.
(2)The computer heating control program of full-automatic welding machine cartridge heater is adjusted, rise heating barrel temperatures extend the heat time.Lack
Point:That automatic welding program must be adjusted according to same day outdoor temperature, it is cumbersome, and if the cartridge heater heat time long can make
It is carbonized into weld bond.
Therefore it is badly in need of a kind of polyethylene pipe welding firing equipment, the defects of above-mentioned like product can be avoided.
The content of the invention
The present invention provides a kind of polyethylene pipe welding firing equipment and its heating means, it is therefore intended that overcomes above-mentioned deficiency
Part, it is simple in construction so as to provide a kind of polyethylene pipe welding firing equipment, it can aid in heating preheating pipe, when pipeline temperature
Degree reaches more than 0 degree Celsius, less than 60 degrees Celsius, then carries out heat-melting butt-joint and electric fusion welding, can effectively reduce electric melting pipe fittings
Non-plastic fracture length, welding quality is favourable, improves combustion gas PE pipeline construction construction qualities.
To achieve these goals, the technical scheme taken of the present invention is:A kind of polyethylene pipe welding firing equipment, bag
Including outer barrel, interior bucket, heated pipeline and cartridge heater, the cartridge heater includes external heat cylinder and interior cartridge heater, and the interior bucket is located at
Tub, said tub inner surface is covered with external heat cylinder, and the outer surface of the interior bucket is covered with interior cartridge heater, said tub
Inward flange is provided with guide ring, and the heated pipeline enters between external heat cylinder and interior cartridge heater along guide ring, described additional
Right side is provided with locating ring between hot cylinder and interior cartridge heater, and locating ring limitation is heated the position of pipe, and the interior bucket left side is set
There is inside and outside wall fixing seal ring, said tub right side is provided with explosion-proof snap joint one, and explosion-proof snap joint one and external heat
Cylinder terminals connection, the interior bucket right side are provided with explosion-proof snap joint two, and explosion-proof snap joint two and interior cartridge heater wiring
End connection.
Preferably, said tub inner surface and interior bucket outer surface graphite spraying ene coatings.
Preferably, it is provided with reinforcement between barrel inside said tub.
Preferably, connecting plate is provided between the interior bucket central cylindrical bore, support tube one is fixed with the connecting plate
With support tube two, and angle is 45 ° between support tube one and support tube two.
Preferably, said tub outer surface is provided with bent handle, and bent handle outside dimension away from bucket outer wall air line distance about
5-6CM, the bent handle are provided with rubber-plastic protective cover.
Preferably, four locating slots are respectively provided with outer barrel and inner barr bucket wall.
A kind of heating means using polyethylene pipe welding firing equipment, comprise the following steps:
(1)Heated polyethylene pipe is inserted between external heat cylinder and interior cartridge heater along guide ring;
(2)Then the position for being heated pipe is limited by locating ring;
(3)Start polyethylene pipe welding firing equipment, external heat cylinder and interior cartridge heater heat polyethylene simultaneously
Pipeline.
Beneficial effect using above technical scheme is:The present invention is directed to deficiencies of the prior art, there is provided new
A kind of polyethylene pipe welding firing equipment of type, the heated pipeline that external heat cylinder and interior cartridge heater can be between add
Heat, reinforcement, in order to prevent cartridge heater from being deformed caused by the temperature difference and external force, outer barrel appearance are provided between tub barrel
Face is provided with bent handle, and bent handle outside dimension is cased with rubber and plastic shield away from bucket outer wall air line distance about 5-6CM on the bent handle
Set, it is ensured that frostbite palm, interior bucket outer surface and outer barrel inner surface graphite spraying ene coatings are prevented during worker's winter construction, are increased
Add cartridge heater surface emissivity, enhanced rad heat transfer effect, increase the heat transfer system between cartridge heater and PE pipes, locating slot can
To ensure the concentricity of heating material, if cartridge heater position is inclined, it is higher to may result in cartridge heater local heating, cartridge heater with
Being heated tube contacts face surrounding installing locating slot can avoid local temperature too high, and explosion-proof snap joint one connects with external heat cylinder
Line end is connected, and explosion-proof snap joint two is connected with interior cartridge heater terminals, it can be ensured that outdoor PE pipelines emergency work construction in the winter time
The auxiliary welding of Shi Jiare waste heat PE pipelines, it is ensured that safety of speedily carrying out rescue work of constructing, the present invention is simple in construction, can aid in heating preheating pipe,
When pipe temperature reaches more than 0 degree Celsius, then heat-melting butt-joint and electric fusion welding are carried out, the fragility that can effectively reduce electric melting pipe fittings is broken
Length is split, welding quality is favourable, improves combustion gas PE pipeline construction construction qualities.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the front view of the present invention;
Fig. 3 is the left sectional view of the present invention;
Fig. 4 is the rearview of the present invention.
Wherein:1st, outer barrel, 2, interior bucket, 3, be heated pipeline, 4, cartridge heater, 10, guide ring, 11, explosion-proof snap joint one,
12nd, reinforcement, 13, bent handle, 20, inside and outside wall fixing seal ring, 21, explosion-proof snap joint two, 22, connecting plate, 23, positioning
Groove, 30, locating ring, 40, external heat cylinder, 41, interior cartridge heater, 22-1, support tube one, 22-2, support tube two.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the invention is made further details of
Explanation, it is therefore an objective to help those skilled in the art to have more complete, accurate and deep reason to design of the invention, technical scheme
Solution, and contribute to its implementation.
As shown in Figures 1 to 4, the present invention is a kind of polyethylene pipe welding firing equipment, simple in construction, can aid in heating
Preheating pipe, when pipe temperature reaches more than 0 degree Celsius, then heat-melting butt-joint and electric fusion welding are carried out, can effectively reduce electric smelting pipe
The non-plastic fracture length of part, welding quality is favourable, improves combustion gas PE pipeline construction construction qualities.
Specifically, as shown in Figures 1 to 4, including outer barrel 1, interior bucket 2, pipeline 3 and cartridge heater 4, the heating are heated
Cylinder 4 includes external heat cylinder 40 and interior cartridge heater 41, and the interior bucket 2 is located inside outer barrel 1, and the inner surface of said tub 1 is covered with outer
Cartridge heater 40, the outer surface of the interior bucket 2 are provided with guide ring 10, the quilt covered with interior cartridge heater 40, the inward flange of said tub 1
Heating pipe 3 enters between external heat cylinder 40 and interior cartridge heater 41 along guide ring 1, the external heat cylinder 40 and interior cartridge heater 41
Between right side be provided with locating ring 30, the limitation of locating ring 30 is heated the position of pipe 3, and the left side of interior bucket 2 is provided with inside and outside wall
Fixing seal ring 20, the right side of said tub 1 are provided with explosion-proof snap joint 1, and explosion-proof snap joint 1 and external heat cylinder
40 terminals connect, and the right side of interior bucket 2 is provided with explosion-proof snap joint 2 21, and anti-
Quick-fried snap joint 2 21 is connected with the interior terminals of cartridge heater 41.
In the present embodiment, the inner surface of said tub 1 and the outer surface graphite spraying ene coatings of interior bucket 2.
In the present embodiment, reinforcement 12 is provided between the inside barrel of outer barrel 1.
In the present embodiment, connecting plate 22 is provided between the central cylindrical bore of interior bucket 1, is fixed with the connecting plate 22
The 22-1 of the support tube one and 22-2 of support tube two, and angle is 45 ° between the 22-1 of support tube one and the 22-2 of support tube two.
In the present embodiment, the outer surface of said tub 1 is provided with bent handle 13, and the outside dimension of bent handle 13 is straight away from bucket outer wall
Linear distance about 5-6CM, the bent handle 13 are provided with rubber-plastic protective cover.
In the present embodiment, four locating slots 23 are respectively provided with 2 barrels of walls of said tub 1 and interior bucket.
A kind of heating means using polyethylene pipe welding firing equipment, comprise the following steps:
(1)Heated polyethylene pipe is inserted between external heat cylinder and interior cartridge heater along guide ring;
(2)Then the position for being heated pipe is limited by locating ring;
(3)Start polyethylene pipe welding firing equipment, external heat cylinder and interior cartridge heater heat polyethylene simultaneously
Pipeline.
It is fast based on above-mentioned, the polyethylene pipe welding firing equipment, firing rate:Pipeline is reached preheating temperature within 20 minutes, add
Hot uniform, the uniformity of whole surface temperature reaches positive and negative 2 DEG C, and heater is easy for installation to can be achieved the dismounting in 5 seconds of installation in 5 seconds, protects
Protect PE pipelines:Not more than 80 DEG C of heating-up temperature, the electrical connection of whole firing equipment all use aviation plug, it is ensured that safety
And fast insert-pull, used in addition with the collocation of the type intelligent temperature regulator of FGRS-03 × 2, possess temperature data acquisition, control temperature
The integral structures such as degree, heating power output.
Specific works mode is illustrated with specific embodiment below:External heat cylinder 40 and interior cartridge heater 41 can be between
Heated pipeline 2 heated, reinforcement 12 is provided between the inside barrel of outer barrel 1, in order to prevent cartridge heater 4 because of the temperature difference and outer
Deformed caused by power, the outer surface of outer barrel 1 is provided with bent handle 13, and the outside dimension of bent handle 13 is away from bucket outer wall air line distance about 5-
6CM, be cased with rubber-plastic protective cover on bent handle 13, it is ensured that prevent frostbite palm during worker's winter construction, the outer surface of interior bucket 2 and
The inner surface graphite spraying ene coatings of outer barrel 1, increase cartridge heater surface emissivity, enhanced rad heat transfer effect, increase heating
Heat transfer system between cylinder 4 and PE pipes, locating slot 23 can ensure the concentricity of heating material, may if the position of cartridge heater 4 is inclined
The local heating of cartridge heater 4 can be caused higher, cartridge heater 4 can avoid with the heated contact surface surrounding installing locating slot 23 of pipeline 3
Local temperature is too high, and explosion-proof snap joint 1 is connected with the terminals of external heat cylinder 40, explosion-proof snap joint 2 21 and interior heating
Cylinder 41 terminals connection, it can be ensured that heat the auxiliary welding of waste heat PE pipelines during outdoor PE pipelines emergency work construction in the winter time, it is ensured that
Construction is speedily carried out rescue work safety, and the present invention is simple in construction, can aid in heating preheating pipe, when pipe temperature reaches more than 0 degree Celsius, then is entered
Row heat-melting butt-joint and electric fusion welding, the non-plastic fracture length of electric melting pipe fittings can be effectively reduced, welding quality is favourable, improves combustion gas
PE pipeline construction construction qualities.
The present invention is exemplarily described above in association with accompanying drawing, it is clear that present invention specific implementation is not by above-mentioned side
The limitation of formula, as long as employ the inventive concept and technical scheme of the present invention progress various unsubstantialities improvement or without
Improve, by the present invention above-mentioned design and technical scheme directly apply to other occasions, protection scope of the present invention it
It is interior.
Claims (7)
- A kind of 1. polyethylene pipe welding firing equipment, it is characterised in that:Including outer barrel(1), interior bucket(2), be heated pipeline(3) And cartridge heater(4), the cartridge heater(4)Including external heat cylinder(40)With interior cartridge heater(41), the interior bucket(2)Positioned at outer barrel (1)Inside, said tub(1)Inner surface is covered with external heat cylinder(40), the interior bucket(2)Outer surface covered with interior cartridge heater (40), said tub(1)Inward flange is provided with guide ring(10), the heated pipeline(3)Enter external heat cylinder along guide ring 1 (40)With interior cartridge heater(41)Between, the external heat cylinder(40)With interior cartridge heater(41)Between right side be provided with locating ring (30), locating ring(30)Limitation is heated pipe(3)Position, the interior bucket(2)Left side is provided with inside and outside wall fixing seal ring (20), said tub(1)Right side is provided with explosion-proof snap joint one(11), and explosion-proof snap joint one(11)With external heat cylinder (40)Terminals connect, the interior bucket(2)Right side is provided with explosion-proof snap joint two(21), and explosion-proof snap joint two(21)With Interior cartridge heater(41)Terminals connect.
- A kind of 2. polyethylene pipe welding firing equipment according to claim 1, it is characterised in that:Said tub(1)It is interior Surface and interior bucket(2)Outer surface graphite spraying ene coatings.
- A kind of 3. polyethylene pipe welding firing equipment according to claim 1, it is characterised in that:Said tub(1)It is interior Reinforcement is provided between portion's barrel(12).
- A kind of 4. polyethylene pipe welding firing equipment according to claim 1, it is characterised in that:The interior bucket(1)In Between be provided with connecting plate between cylindrical hole(22), the connecting plate(22)On be fixed with support tube one(22-1)With support tube two (22-2), and support tube one(22-1)With support tube two(22-2)Between angle be 45 °.
- A kind of 5. polyethylene pipe welding firing equipment according to claim 1, it is characterised in that:Said tub(1)Outside Surface is provided with bent handle(13), and bent handle(13)Outside dimension is away from bucket outer wall air line distance about 5-6CM, the bent handle (13)It is provided with rubber-plastic protective cover.
- A kind of 6. polyethylene pipe welding firing equipment according to claim 1, it is characterised in that:Outer barrel(1)And interior bucket (2)Four locating slots are respectively provided with bucket wall(23).
- A kind of 7. heating means of polyethylene pipe welding firing equipment using described in claim 1, it is characterised in that:Including Following steps:Heated polyethylene pipe is inserted between external heat cylinder and interior cartridge heater along guide ring;Then the position for being heated pipe is limited by locating ring;Start polyethylene pipe welding firing equipment, external heat cylinder and interior cartridge heater heat polyethylene simultaneouslyPipeline.
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CN201710825106.9A CN107364051B (en) | 2017-09-14 | 2017-09-14 | Polyethylene pipeline welding heating equipment and heating method thereof |
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CN201710825106.9A CN107364051B (en) | 2017-09-14 | 2017-09-14 | Polyethylene pipeline welding heating equipment and heating method thereof |
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CN107364051B CN107364051B (en) | 2023-07-28 |
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Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3226575C1 (en) * | 1982-07-16 | 1984-03-01 | Friedrichsfeld Gmbh, Steinzeug- Und Kunststoffwerke, 6800 Mannheim | Device for connecting |
JPS5942943A (en) * | 1982-09-03 | 1984-03-09 | Taigaasu Polymer Kk | Continuous manufacture of rubber hose |
JPH05318595A (en) * | 1992-05-25 | 1993-12-03 | Sekisui Chem Co Ltd | Connecting method for synthetic resin tube |
JPH0957854A (en) * | 1995-08-21 | 1997-03-04 | Sekisui Chem Co Ltd | Method for fusion welding of thermoplastic resin tube material and fusion welder |
JP2000104882A (en) * | 1998-09-25 | 2000-04-11 | Osaka Gas Co Ltd | Connecting method for resin pipe and resin pipe |
JP2002295780A (en) * | 2001-03-29 | 2002-10-09 | Furukawa Electric Co Ltd:The | Electrofusion joint and plastic pipe connecting method using the joint |
JP2007040329A (en) * | 2005-08-01 | 2007-02-15 | Kyowa Nissei:Kk | Pipe connector |
CN201067957Y (en) * | 2007-05-24 | 2008-06-04 | 索红卫 | Closed internal circulation powder material cooling and heating device |
JP2008296456A (en) * | 2007-05-31 | 2008-12-11 | Inoac Corp | Cover material heat fusion tool for pipe member |
US20090001633A1 (en) * | 2007-06-29 | 2009-01-01 | Limon Timothy A | Method Of Manufacturing A Stent From A Polymer Tube |
CN101670633A (en) * | 2008-09-11 | 2010-03-17 | 哈尔滨乐普实业发展中心 | Internal heating method and internal heating and solidifying device |
CN203125954U (en) * | 2013-03-06 | 2013-08-14 | 台州职业技术学院 | Connecting heating tool for PE (polyethylene) pipe |
CN104141852A (en) * | 2013-05-07 | 2014-11-12 | Ti汽车富尔达布吕克有限公司 | Method for Connecting Connector Coupling to vehicle guide pipe guiding Fluid, and connecting assembly |
CN104791569A (en) * | 2015-04-23 | 2015-07-22 | 四川省机械研究设计院 | Automatic centering and quick connecting device for vacuum insulation pipeline |
CN104995095A (en) * | 2013-02-15 | 2015-10-21 | 富士音派路思机电有限公司 | Seal device |
CN204773202U (en) * | 2015-07-21 | 2015-11-18 | 江苏建投宝塑科技有限公司 | Heating device for flaring of polyethylene pipe system is used for feedwater |
CN105666754A (en) * | 2016-03-29 | 2016-06-15 | 常州工程职业技术学院 | Electrical heating type vulcanizing tank with explosion-proof function |
CN205534849U (en) * | 2016-03-18 | 2016-08-31 | 中国石油天然气集团公司 | Heat insulation anticorrosion petroleum pipeline |
CN207495883U (en) * | 2017-09-14 | 2018-06-15 | 长春燃气热力设计研究院有限责任公司 | A kind of polyethylene pipe welding heating equipment |
-
2017
- 2017-09-14 CN CN201710825106.9A patent/CN107364051B/en active Active
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3226575C1 (en) * | 1982-07-16 | 1984-03-01 | Friedrichsfeld Gmbh, Steinzeug- Und Kunststoffwerke, 6800 Mannheim | Device for connecting |
JPS5942943A (en) * | 1982-09-03 | 1984-03-09 | Taigaasu Polymer Kk | Continuous manufacture of rubber hose |
JPH05318595A (en) * | 1992-05-25 | 1993-12-03 | Sekisui Chem Co Ltd | Connecting method for synthetic resin tube |
JPH0957854A (en) * | 1995-08-21 | 1997-03-04 | Sekisui Chem Co Ltd | Method for fusion welding of thermoplastic resin tube material and fusion welder |
JP2000104882A (en) * | 1998-09-25 | 2000-04-11 | Osaka Gas Co Ltd | Connecting method for resin pipe and resin pipe |
JP2002295780A (en) * | 2001-03-29 | 2002-10-09 | Furukawa Electric Co Ltd:The | Electrofusion joint and plastic pipe connecting method using the joint |
JP2007040329A (en) * | 2005-08-01 | 2007-02-15 | Kyowa Nissei:Kk | Pipe connector |
CN201067957Y (en) * | 2007-05-24 | 2008-06-04 | 索红卫 | Closed internal circulation powder material cooling and heating device |
JP2008296456A (en) * | 2007-05-31 | 2008-12-11 | Inoac Corp | Cover material heat fusion tool for pipe member |
US20090001633A1 (en) * | 2007-06-29 | 2009-01-01 | Limon Timothy A | Method Of Manufacturing A Stent From A Polymer Tube |
CN101670633A (en) * | 2008-09-11 | 2010-03-17 | 哈尔滨乐普实业发展中心 | Internal heating method and internal heating and solidifying device |
CN104995095A (en) * | 2013-02-15 | 2015-10-21 | 富士音派路思机电有限公司 | Seal device |
CN203125954U (en) * | 2013-03-06 | 2013-08-14 | 台州职业技术学院 | Connecting heating tool for PE (polyethylene) pipe |
CN104141852A (en) * | 2013-05-07 | 2014-11-12 | Ti汽车富尔达布吕克有限公司 | Method for Connecting Connector Coupling to vehicle guide pipe guiding Fluid, and connecting assembly |
CN104791569A (en) * | 2015-04-23 | 2015-07-22 | 四川省机械研究设计院 | Automatic centering and quick connecting device for vacuum insulation pipeline |
CN204773202U (en) * | 2015-07-21 | 2015-11-18 | 江苏建投宝塑科技有限公司 | Heating device for flaring of polyethylene pipe system is used for feedwater |
CN205534849U (en) * | 2016-03-18 | 2016-08-31 | 中国石油天然气集团公司 | Heat insulation anticorrosion petroleum pipeline |
CN105666754A (en) * | 2016-03-29 | 2016-06-15 | 常州工程职业技术学院 | Electrical heating type vulcanizing tank with explosion-proof function |
CN207495883U (en) * | 2017-09-14 | 2018-06-15 | 长春燃气热力设计研究院有限责任公司 | A kind of polyethylene pipe welding heating equipment |
Non-Patent Citations (1)
Title |
---|
赵红: "聚乙烯管道焊接技术和评价方法", 《中国塑料》 * |
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