CN106624264A - Device and technology for eliminating local overheating effect in pipeline welding process - Google Patents
Device and technology for eliminating local overheating effect in pipeline welding process Download PDFInfo
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- CN106624264A CN106624264A CN201710178463.0A CN201710178463A CN106624264A CN 106624264 A CN106624264 A CN 106624264A CN 201710178463 A CN201710178463 A CN 201710178463A CN 106624264 A CN106624264 A CN 106624264A
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- coolant jacket
- welding
- cooling jacket
- pipeline welding
- argon gas
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
- B23K9/0282—Seam welding; Backing means; Inserts for curved planar seams for welding tube sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/321—Protecting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/323—Combined coupling means, e.g. gas, electricity, water or the like
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a device and technology for eliminating the local overheating effect in the pipeline welding process. The local overheating phenomenon of a weld joint can be efficiently eliminated. According to the technical scheme, the device comprises a mechanical skeleton, a cooling jacket I, a cooling jacket II, a cooling jacket III, a cooling jacket IV, a suspension rod I, a suspension rod II, a water injection pipe and an argon injection pipe; the inner side of the cooling jacket III and the inner side of the cooling jacket IV make contact with the welding pipeline, the mechanical skeleton is arranged outside the cooling jacket III and the cooling jacket IV, the cooling jacket I and the cooling jacket II are arranged outside the mechanical skeleton, a cavity formed among the cooling jacket I, the mechanical skeleton and the cooling jacket III serves as a water storage cavity, and a cavity formed among the cooling jacket II, the mechanical skeleton and the cooling jacket IV serves as an argon cavity; the suspension rod I and the water injection pipe are arranged outside the cooling jacket I, and the suspension rod II and the argon injection pipe are arranged outside the cooling jacket II.
Description
Technical field
The present invention relates to pipeline welding field, more particularly to a kind of to imitate for eliminating hot-spot during pipeline welding
The device answered and technique.
Background technology
Pipeline transportation as one of railway, highway, sea-freight, civil aviation and the big carrier of long distance pipeline five, in its people
Play an important role in economic construction.Its pumped (conveying) medium based on common oil, natural gas, also industrial gas in addition
And chemical liquid.The structure of grid needs effective pipeline welding process to implement；Additionally, the promotion of energy-efficient theory,
Efficient connection to pipeline proposes requirement.
Common welding method has arc welding, Laser Welding, flash butt welding, high frequency rotation arc-welding, axial rub weldering, radial friction
Weldering etc..Arc welding is the fusion welding method being most widely used, and is also one of welding procedure conventional in pipeline welding.In pipeline weldering
In termination process, usually due to welding the hot-spot phenomenon that causes, occur penetrating, alloying element scaling loss and post-weld stress are concentrated
Etc. phenomenon.The good shaping of weld seam is not only affected, while also having had a strong impact on the quality of production of pipeline.On the other hand, TP304
It is by pressure pipeline common used material with two kinds of austenite heat-resistance stainless steels of TP347.But, measured discovery, in welding process,
Welding point is very easy to rest on 400～500 DEG C of this temperature ranges.According to " Carbide Precipitation cause intergranular chromium depleted " reason
By in 450～850 DEG C of temperature ranges, carbon and chromium are very easy to assemble to form chromium carbide in austenite crystal boundary so that
There is chromium depleted phenomenon in austenite crystal boundary, easily cause intercrystalline corrosion.Meanwhile, Fe-Gr alloys are in 400～550 DEG C of temperature
, easily there are a kind of special fragility, referred to as 437 DEG C fragility in the interval extended stationary periods of degree.Therefore, in order to realize being obtained in welding process
Good weld seam must be shaped, it is an indispensable link in pipeline manufacture process to eliminate hot-spot.
During pipeline welding, it is that using the method for cold water forced cooling, i.e. welder exists to eliminate overheated common method
During welding, one barrel of cold water is put on side, is often soldered one layer of welding bead and just wipes cooling weld seam using the cotton waste for being impregnated with cold water so that
The temperature decrease of weld metal to 150 DEG C or so, is carrying out lower welding together.In addition, in welding process, using hand
The method of work argon arc welding carries out bottoming, using the protected effect of argon gas, prevents alloying element from aoxidizing and scaling loss.But, using hand
Dynamic mode carries out eliminating the mode of hot-spot, and pipeline low production efficiency, products perfection rate is not high.And traditional cooling means
Using limitation is compared, for large diameter pipeline is welded and is not applied to.
In sum, for the problem for eliminating hot-spot effect during pipeline welding in prior art, still lacking has
The solution of effect.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of be used to eliminate hot-spot during pipeline welding
The device and technique of effect, by the way of mechanical automation, realizes efficiently eliminating weld seam hot-spot phenomenon.
It is a kind of for eliminating pipeline welding during hot-spot effect device, it is including machinery frame, coolant jacket I, cold
But II, coolant jacket III, coolant jacket IV, hanger bar I, hanger bar II, water injection pipe and note tunger tube are covered；Described coolant jacket III and
The inner side of coolant jacket IV contacts with welded pipe line, and on the outside of described coolant jacket III and coolant jacket IV machinery frame is provided with, described
Machinery frame on the outside of be provided with coolant jacket I and coolant jacket II, described coolant jacket I, shape between machinery frame and coolant jacket III
Into cavity be storage chamber, described coolant jacket II, the cavity formed between machinery frame and coolant jacket IV are argon gas chamber；It is described
Coolant jacket I on the outside of be provided with hanger bar I and water injection pipe, be provided with the outside of described coolant jacket II hanger bar II and note argon gas
Pipe.
Further, described coolant jacket I, coolant jacket II, coolant jacket III and coolant jacket IV are semi-cylindrical.
Further, described coolant jacket III and coolant jacket IV is provided with equally distributed passage.
Further, described machinery frame is formed by connecting by three semicircular arc support members；Described machinery frame and
Coolant jacket I, coolant jacket II are connected by securing member；Two chambers are separated by machinery frame, so as to avoid argon gas and water
Steam mixes.
Further, described hanger bar I and hanger bar II are respectively arranged on the outer ledge position of coolant jacket I and coolant jacket II
Put.
Further, described water injection pipe is connected with storage chamber, and described note tunger tube is connected with argon gas chamber.
It is a kind of for eliminating pipeline welding during hot-spot effect technique, it is characterised in that：Comprise the following steps：
Step 1 removes oxide, oil stain, other impurities etc. to cleaning at pipeline welding, in order to avoid affect welding matter
Amount；
Storage chamber and argon gas chamber are filled with respectively cold water and argon gas by step 2, are hanged in device using hanger bar I and hanger bar II
Hang over aerial, it is to avoid device is in close contact with welded pipe line；
Step 3 adopts TIG/MAG composite welding modes, and first with TIG welding guns bottoming is welded, and recycles MAG welding gun butt welding
Seam is covered, by way of argon gas is protected, it is ensured that the good shaping of weld seam and prevent alloying element scaling loss；
After step 4 welding terminates, device is set to depart from welded pipe line using suspention car.
Further, argon gas is filled with argon gas chamber in described step 2, in storage chamber cold water is filled with, in air pressure and hydraulic pressure
In the presence of, vapor and shielding gas are formed by passage, play protection weld seam and eliminate the work of hot-spot phenomenon
With.
Further, in described step 3 weld seam is lowered the temperature using argon gas and vapor, weld seam temperature is quickly cooled to
Less than 150 DEG C, it is to avoid weld seam is stopped in 400～500 DEG C of this temperature ranges, and then eliminate weld seam hot-spot phenomenon.
Further, TIG welding guns adopt straight polarity direct current mode, MAG welding to adopt DC reverse connection side in described step 3
Formula.
Compared with prior art, the invention has the beneficial effects as follows：
1st, in welding process, using argon gas is filled with argon gas chamber, the mode of cold water, and guarantee two are filled with storage chamber
The enough air pressure of within the chamber and hydraulic pressure, due to there is multiple evenly distributed passages below two chambers, in air pressure and hydraulic pressure
In the presence of, vapor and shielding gas are formed by passage, fully play protection weld seam and eliminate hot-spot phenomenon；
2nd, welding process is automatically controlled completely by welding equipment, human factor very little；Only need to control in welding process hydraulic pressure,
The posture of air pressure, speed of welding, voltage, electric current and welding gun, is advantageously implemented Automation of Welding, improve production efficiency,
Have the advantages that efficient, high-quality；
3rd, with TIG/MAG composite welding modes, the attitude regulation mechanism of two welding guns is separate, it is possible to achieve each weldering
Rifle angle and height are freely adjusted；Before welding, fasten intermediate plate by welding gun welding gun is fixed on base plate, existed by welding gun
Slide on base plate angle modulation groove and realize the regulation of angle of welding gun.
Description of the drawings
The Figure of description for constituting the part of the present invention is used for providing a further understanding of the present invention, and the present invention's shows
Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.
Fig. 1 is the installation diagram of the present invention；
Fig. 2 is the structure decomposition figure of the present invention；
Wherein, 1- hanger bars I, 2- water injection pipes, 3- note tunger tubes, 4- hanger bars II, 5-MAG welding guns, 6-TIG welding guns, 7-
Coolant jacket II, 8- machinery frame, 9- coolant jacket I, 10- coolant jacket III, 11- welded pipe lines, 12- weld seams, 13- storage chambers, 14-
Argon gas chamber, 15- passages, 16- coolant jacket IV.
Specific embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the present invention.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, existing in prior art can not fully eliminate hot-spot effect in pipeline welding
Deficiency, in order to solve technical problem as above, the present invention proposes a kind of for eliminating hot-spot during pipeline welding
The device and technique of effect.
In a kind of typical embodiment of the present invention, as shown in Figure 1, there is provided one kind is used to eliminate pipeline welding process
The device of middle hot-spot effect, including machinery frame 8, coolant jacket I9, coolant jacket II7, coolant jacket III10, coolant jacket IV16,
Hanger bar I1, hanger bar II4, water injection pipe 2 and note tunger tube 3；Wherein, described coolant jacket III10's and coolant jacket IV16 is interior
Side contacts with welded pipe line 11, and on the outside of described coolant jacket III10 and coolant jacket IV16 machinery frame 8, described machine are provided with
The outside of tool skeleton 8 is provided with coolant jacket I9 and coolant jacket II7, described coolant jacket I9, machinery frame 8 and coolant jacket III10 it
Between the cavity that formed be storage chamber 13, described coolant jacket II7, the cavity formed between machinery frame 8 and coolant jacket IV16 are
Argon gas chamber 14；Hanger bar I1 and water injection pipe 2 are provided with the outside of described coolant jacket I9, are provided with the outside of described coolant jacket II7
Hanger bar II4 and note tunger tube 3.
Above-mentioned coolant jacket I9, coolant jacket II7, coolant jacket III10 and coolant jacket IV16 are semi-cylindrical, coolant jacket
The internal diameter of III10 and coolant jacket IV16 is close with the external diameter of welded pipe line 11, it is ensured that device is fitted with welded pipe line.
In order to be further ensured that the cooling effect of device, it is provided with described coolant jacket III10 and coolant jacket IV16
The passage 15 of even distribution, vapor and argon gas are entered into around weld seam by passage 15.
Above-mentioned machinery frame 8 is formed by connecting by three semicircular arc support members, positioned at the semi arch of the one end of machinery frame 8
The edge of shape support member and coolant jacket I9, the justified margin of coolant jacket III10, positioned at the semicircular arc of the other end of machinery frame 8
The edge of support member and coolant jacket II7, the justified margin of coolant jacket IV16, middle semicircular arc support member by storage chamber 13 with
Argon gas chamber 14 separates, and the space of the storage chamber 13 of formation is more than the space in argon gas chamber 14.Described machinery frame 8 and coolant jacket
I9, coolant jacket II7 are connected by securing member；Described securing member can be the connectors such as screw, bolt.By machinery frame 8
Two chambers are separated, so as to avoid argon gas from mixing with vapor.
Above-mentioned hanger bar I1 and hanger bar II4 is respectively arranged on the outer ledge position of coolant jacket I9 and coolant jacket II7, leads to
Suspention suspender I and suspender II is crossed, makes device be unlikely to be in close contact with welded pipe line 11, so as to avoid having influence on vapor
With the smooth discharge of argon gas.
Above-mentioned water injection pipe 2 is connected with storage chamber 13, and note tunger tube 3 is connected with argon gas chamber 14, by water injection pipe 2 by cold water
In injection storage chamber 13, argon gas is passed through in argon gas chamber 14 by noting tunger tube 3.
It is above-mentioned for eliminating pipeline welding during the installation process of device of hot-spot effect be：
Coolant jacket III10 and coolant jacket IV16 are fitted side by side, is placed in the outside of coolant jacket III10 and coolant jacket IV16
Machinery frame 8, in the outside of machinery frame 8 coolant jacket I9 and coolant jacket II7 is placed, with fixture is by machinery frame 8 and cools down
Set I9, coolant jacket II7, coolant jacket III10 and coolant jacket IV are fixed together, and form storage chamber 13 and argon gas chamber 14.
In another embodiment of the present invention, above-mentioned coolant jacket I9 and coolant jacket II7 can be made of one structure as upper
Coolant jacket, described coolant jacket III10 and coolant jacket IV16 can be made of one structure as lower coolant jacket, described lower cooling
Put and be provided with equally distributed passage 15, between described upper coolant jacket and lower coolant jacket machinery frame 8, described machine are provided with
Two cavitys, i.e. storage chamber 13 and argon gas chamber 14 are formed between tool skeleton 8 and upper coolant jacket and lower coolant jacket；Described mechanical bone
The space interval that the thickness of frame 8 is formed with upper coolant jacket and lower coolant jacket is equal.
In another embodiment of the present invention, by taking TP304 austenite heat-resistance stainless steel pipeline weldings as an example elimination is illustrated
Joining Technology of the overheating effect device in pipeline welding and use.The technique of the elimination hot-spot effect of pipeline welding with
Device is applied to oil, the welding of natural gas line.Preparation before weldering is to ensure that the important step of welding quality.
The first step, first to cleaning at pipeline welding, removes oxide, oil stain, other impurities etc..
Second step, by water injection pipe 2 and note tunger tube 3 storage chamber 13 and argon gas chamber 14 are filled with respectively in advance cold water and
Argon gas.Two chambers are separated by way of machinery frame 8, so as to avoid argon gas from mixing with vapor.Using two suspensions
Bar hangs device in the air, it is to avoid cooling device is in close contact with welded pipe line 11.
3rd step, using TIG/MAG composite welding modes, using TIG welding guns bottoming is carried out, and enters to cover using MAG welding guns.
The attitude regulation mechanism of two welding guns is separate in the efficient welding device of TIG-MAG composite weldings, it is possible to achieve each weldering
Rifle angle and height are freely adjusted.Before welding, it is to fasten intermediate plate by welding gun welding gun is fixed on base plate, by welding gun
Slide on base plate angle modulation groove and realize the regulation of angle of welding gun.At double welding gun level, upright position and respective angle of inclination
Start welding after the completion of regulation, TIG weld adopts straight polarity direct current, MAG welding to adopt DC reverse connection, and TIG welding guns are in front, MAG welderings
Rifle is rear.
4th step, is carried out in welding process in welding gun, and the weld seam 12 of welded pipe line 11 is entered using argon gas and cold water vapor
Row cooling, is used for quickly detecting by infrared thermometry device to weld seam temperature, to ensure weld seam temperature less than 150 DEG C, and then
Eliminate weld seam hot-spot phenomenon.
5th step, after welding terminates, is slowly withdrawn cooling device using suspention car.
Concrete welding process is as follows：
(1) parameter setting：Welding condition is set into speed of welding 0.5m/min, wire feed rate is 6m/min, MAG
Electric current 200A, MAG voltage 22V, MAG resistance welding gun electric conducting nozzle height 18mm, MAG welding gun throughputs 15L/min；TIG electric current 90A, TIG
Electric current 11V, speed of welding 0.05m/min；
(2) welding torch position is adjusted：The height of the tungsten electrode of TIG welding guns and stainless steel pipes weld seam is adjusted into 3mm, MAG welderings
Height of the ignition tip of rifle away from stainless steel pipes weld seam is adjusted to 18mm；TIG welding guns are arranged at before MAG welding guns；
(3) weld：Welded using TIG welding guns and MAG welding guns, the argon gas in argon gas chamber and storage chamber in welding process
Vapor is entered around weld seam by passage, and the weld seam of stainless steel pipes is lowered the temperature, and weld seam temperature is quickly cooled to
Less than 150 DEG C, weld seam temperature is detected by infrared thermometry device.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. it is a kind of for eliminating pipeline welding during hot-spot effect device, it is characterised in that：Including machinery frame, cold
But I, coolant jacket II, coolant jacket III, coolant jacket IV, hanger bar I, hanger bar II, water injection pipe and note tunger tube are covered；Described is cold
But the inner side for covering III and coolant jacket IV contacts with welded pipe line, and on the outside of described coolant jacket III and coolant jacket IV machinery is provided with
Skeleton, is provided with coolant jacket I and coolant jacket II on the outside of described machinery frame, described coolant jacket I, machinery frame and coolant jacket
The cavity formed between III is storage chamber, and described coolant jacket II, the cavity formed between machinery frame and coolant jacket IV are argon
Air cavity；Hanger bar I and water injection pipe are provided with the outside of described coolant jacket I, on the outside of described coolant jacket II hanger bar II is provided with
With note tunger tube.
2. it is according to claim 1 it is a kind of for eliminating pipeline welding during hot-spot effect device, its feature
It is：Described coolant jacket I, coolant jacket II, coolant jacket III and coolant jacket IV are semi-cylindrical.
3. it is according to claim 2 it is a kind of for eliminating pipeline welding during hot-spot effect device, its feature
It is：Described coolant jacket III and coolant jacket IV is provided with equally distributed passage.
4. it is according to claim 1 it is a kind of for eliminating pipeline welding during hot-spot effect device, its feature
It is：Described machinery frame is formed by connecting by three semicircular arc support members；Described machinery frame and coolant jacket I, cooling
Set II is connected by securing member.
5. it is according to claim 1 it is a kind of for eliminating pipeline welding during hot-spot effect device, its feature
It is：Described hanger bar I and hanger bar II is respectively arranged on the outer ledge position of coolant jacket I and coolant jacket II.
6. it is according to claim 1 it is a kind of for eliminating pipeline welding during hot-spot effect device, its feature
It is：Described water injection pipe is connected with storage chamber, and described note tunger tube is connected with argon gas chamber.
7. according to claim 1-6 it is arbitrary it is described it is a kind of for eliminating pipeline welding during hot-spot effect technique,
It is characterized in that：Comprise the following steps：
Step 1 at pipeline welding to cleaning；
Storage chamber and argon gas chamber are filled with respectively cold water and argon gas by step 2, are suspended in device using hanger bar I and hanger bar II
In the air, it is to avoid device is in close contact with welded pipe line；
Step 3 adopts TIG/MAG composite welding modes, and first with TIG welding guns bottoming is welded, and recycles MAG welding guns to enter weld seam
Row is covered；
After step 4 welding terminates, device is set to depart from welded pipe line using suspention car.
8. it is according to claim 7 it is a kind of for eliminating pipeline welding during hot-spot effect technique, its feature
It is：Argon gas is filled with argon gas chamber in described step 2, in storage chamber cold water is filled with, in the presence of air pressure and hydraulic pressure, passed through
Passage forms vapor and shielding gas, plays a part of to protect weld seam and elimination hot-spot phenomenon.
9. it is according to claim 7 it is a kind of for eliminating pipeline welding during hot-spot effect technique, its feature
It is：In welding process weld seam is lowered the temperature using argon gas and vapor in described step 3, weld seam temperature is quickly cooled to
Less than 150 DEG C.
10. it is according to claim 7 it is a kind of for eliminating pipeline welding during hot-spot effect technique, its feature
It is：TIG welding guns adopt straight polarity direct current mode, MAG welding to adopt DC reverse connection mode in described step 3.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710178463.0A CN106624264A (en) | 2017-03-23 | 2017-03-23 | Device and technology for eliminating local overheating effect in pipeline welding process |
| CN201710324011.9A CN106975823A (en) | 2017-03-23 | 2017-05-08 | It is a kind of to be used to eliminate the device and technique of hot-spot effect during pipeline welding |
| CN201720504641.XU CN206662501U (en) | 2017-03-23 | 2017-05-08 | A kind of device for being used to eliminate hot-spot effect during pipeline welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710178463.0A CN106624264A (en) | 2017-03-23 | 2017-03-23 | Device and technology for eliminating local overheating effect in pipeline welding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106624264A true CN106624264A (en) | 2017-05-10 |
Family
ID=58848504
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710178463.0A Withdrawn CN106624264A (en) | 2017-03-23 | 2017-03-23 | Device and technology for eliminating local overheating effect in pipeline welding process |
| CN201710324011.9A Withdrawn CN106975823A (en) | 2017-03-23 | 2017-05-08 | It is a kind of to be used to eliminate the device and technique of hot-spot effect during pipeline welding |
| CN201720504641.XU Active CN206662501U (en) | 2017-03-23 | 2017-05-08 | A kind of device for being used to eliminate hot-spot effect during pipeline welding |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710324011.9A Withdrawn CN106975823A (en) | 2017-03-23 | 2017-05-08 | It is a kind of to be used to eliminate the device and technique of hot-spot effect during pipeline welding |
| CN201720504641.XU Active CN206662501U (en) | 2017-03-23 | 2017-05-08 | A kind of device for being used to eliminate hot-spot effect during pipeline welding |
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| CN (3) | CN106624264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486655A (en) * | 2017-08-21 | 2017-12-19 | 杭州同创顶立机械有限公司 | A kind of jointed shaft post annealing area control device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299890A (en) * | 2020-03-20 | 2020-06-19 | 上海宝冶集团有限公司 | Narrow-position dissimilar steel welding method |
| CN111618403A (en) * | 2020-05-28 | 2020-09-04 | 中车四方车辆有限公司 | Aluminum alloy fusion welding device |
-
2017
- 2017-03-23 CN CN201710178463.0A patent/CN106624264A/en not_active Withdrawn
- 2017-05-08 CN CN201710324011.9A patent/CN106975823A/en not_active Withdrawn
- 2017-05-08 CN CN201720504641.XU patent/CN206662501U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486655A (en) * | 2017-08-21 | 2017-12-19 | 杭州同创顶立机械有限公司 | A kind of jointed shaft post annealing area control device |
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| CN206662501U (en) | 2017-11-24 |
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