CN109865921A - Magnetic-type pipeline all-position mechanised welding welding procedure - Google Patents
Magnetic-type pipeline all-position mechanised welding welding procedure Download PDFInfo
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- CN109865921A CN109865921A CN201910133743.9A CN201910133743A CN109865921A CN 109865921 A CN109865921 A CN 109865921A CN 201910133743 A CN201910133743 A CN 201910133743A CN 109865921 A CN109865921 A CN 109865921A
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Abstract
The present invention provides a kind of magnetic-type pipeline all-position mechanised welding welding procedure, belongs to pipeline welding technology field.The welding method includes: S1, using hand tungsten argon arc welding progress bottom welding；S2, the motor-driven welding machine of magnetic-type all positon is adsorbed on pipeline to be welded, welding parameters carry out default debugging；S3, starting welding machine fill welding since 6 points of pipeline side, and 12 positions stop, and welding tractor sky goes to the pipeline other side, welds from 6 point joints, complete filled layer welding；S4, welding machine the capping layer since 6 point of pipeline side weld, until 12 positions stop；Welding machine trolley sky goes to the pipeline other side, welds from 6 point joints, completes the welding of weld bond.The present invention effectively save weld interval, welding efficiency is improved, reduces operating cost, while alleviating welder's homework burden, while effectively promoting welding quality, the value with good practical application.
Description
Technical field
The invention belongs to pipeline welding technology fields, and in particular to a kind of magnetic-type pipeline all-position mechanised welding Welder
Skill.
Background technique
Disclosing the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without certainty
It is considered as recognizing or implying in any form that information composition has become existing skill well known to persons skilled in the art
Art.
Recently as being constantly progressive for construction technology, petrochemical industry, the scale of coal chemical engineering equipment constantly increase, along with
Market competition is increasingly fierce, and requirement of the Construction Party to the duration is more and more tighter.The key points and difficulties of chemical plant installations construction are process ducts
How road, be completed in a relatively short time the biggish pipeline welding of project amount, and common method is that construction pipeline processing factory introduces
Pipeline automatic welding equipment carries out pipe prefabrication and installation.
Although domestic existing automatic submerged arc welding device technique construction efficiency is high, welding quality is good, it is only applicable in factory
Pipe prefabrication is carried out in room, it is impossible to be used in the erecting and welding of live fixing port.Manual gas shield welding technique physical efficiency under one's control, no
Energy continued smooth welding, the work efficiency of gas shield welding cannot embody completely.Magnetic-type pipeline all-position mechanised welding very good solution
The above problem.It can be applied not only to the welding of pipe prefabrication weld bond, weld bond can also be welded and fixed at the scene, increase pipe
The road automatic welding depth of weld, while human weld's environment is improved, it reduces labor intensity, can continue to weld, improve welding
Work efficiency, but inventors have found that welding quality cannot be still completely secured using above-mentioned magnetic-type pipeline all-position mechanised welding.
Summary of the invention
In view of the above shortcomings of the prior art, the present invention provides a kind of magnetic-type pipeline all-position mechanised welding welding procedure,
The present invention is adsorbed onto tube surface using magnetic-type welding tractor and carries out using gas shielded arc welding equipment as the source of welding current
Weld job adjusts the various welding parameters in welding process, so that it is motor-driven to effectively increase magnetic-type pipeline all-position in due course
The welding efficiency and welding quality of weldering, the value with good practical application.
An object of the present invention is to provide a kind of motor-driven welding method of magnetic-type pipeline all-position.
The second object of the present invention is to provide the application of above-mentioned welding method.
For achieving the above object, specifically, the invention discloses following technical schemes:
The first aspect of the invention discloses a kind of motor-driven welding method of magnetic-type pipeline all-position, the welding
Method includes:
S1, bottom welding is carried out using hand tungsten argon arc welding；
S2, the motor-driven welding machine of magnetic-type all positon is adsorbed on pipeline to be welded, welding parameters carry out default debugging；
S3, starting welding machine fill welding since 6 points of pipeline side, and 12 positions stop, and welding tractor sky is gone to
The pipeline other side is welded from 6 point joints, completes filled layer welding；
S4, welding machine the capping layer since 6 point of pipeline side weld, until 12 positions stop；Welding machine trolley sky is gone to
The pipeline other side welds from 6 point joints, completes the welding of weld bond.
Specifically, used in the above-mentioned motor-driven welding machine welding process of magnetic-type all positon gage of wire forWelding wire,
Welding wire is in CO2Or Ar+CO2It is welded under mixed gas protected；Using above-mentioned welding wire can be used biggish welding parameter into
Row welding, to improve welding quality；
Further, protective gas uses 80%Ar and 20%CO2Mixed gas；When using Ar+CO2 mixed gas into
When row welding, experiment proves that the CO of 80% Ar+20%2Combined mixed gas, welding process are stablized, and splash small.
Further, in the step S1, argon tungsten-arc welding design parameter are as follows: 80~110A of electric current, voltage be 20~
22V, movement speed are 34~35cm/min, and gas flow is 20~25L/min；Use diameter forWelding rod；Protection
Gas is Ar gas；
Further, in the step S3 and S4, the specific welding parameter of filled layer and capping layer are as follows: welding current 180
~220A, 20~24V of weldingvoltage, 20~24cm/min of movement speed, wire feed rate are 750~850cm/min, and welding wire stretches out
Length is 8~12mm, and swing speed is 160~180 times/min, and the amplitude of oscillation is subject to weld metal deposition to welding bead edge；Gas
Flow is 20~25L/min；
Further, motor-driven welding method further includes pre-processing to pipeline nozzle end face, and the pretreatment is pair
The nozzle end face of pipeline to be welded carries out retaining wall on slope and cleaning；
Further, the motor-driven welding method further includes that Welded Joints carry out routine inspection, and inspection project includes
Visual examination, with weld seam and base material rounding off, surface does not have the welding defects such as incomplete fusion, slag inclusion, stomata, overlap, undercut to be
It is qualified.
Further, pipeline to be welded is A106-B material；
Further, when welding non magnetic pipeline (such as austenitic stainless steel), simple track, rail can be made with sheet iron
Anti-pollution processing is done between road and stainless steel pipes, the motor-driven welding machine of magnetic-type all positon is adsorbed on track can weld it is stainless
Steel conduit.
The second aspect of the invention provides application of the above-mentioned motor-driven welding method in process pipe welding.
Compared with prior art, the present invention achieve it is following the utility model has the advantages that
The present invention is adsorbed onto pipe using gas shielded arc welding equipment as the source of welding current, using magnetic-type welding tractor
Surface carries out weld job, adjusts the various welding parameters in welding process in due course, and effectively save weld interval improves Welder
Make efficiency, reduce operating cost, while alleviating welder's homework burden, while effectively promoting welding quality, has good
The value of practical application.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
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 application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In conjunction with specific example, the present invention is further illustrated, and following instance is not right merely to the explanation present invention
Its content is defined.If the experiment actual conditions being not specified in embodiment, usually according to normal condition, or it is public according to sale
Take charge of recommended condition；It is not particularly limited in the present invention, can be commercially available by commercial sources.
As background technique is introduced, in the prior art, although domestic existing automatic submerged arc welding device technique construction
It is high-efficient, welding quality is good, but be only applicable to carry out pipe prefabrication in workshop, it is impossible to be used in the installation of live fixing port is welded
It connects.Manual gas shield welding technique physical efficiency under one's control, is unable to continued smooth welding, and the work efficiency of gas shield welding cannot embody completely
Come.
In view of this, providing a kind of magnetic-type pipeline all-position mechanised welding weldering in a kind of specific embodiment of the invention
Method is connect, the welding method includes:
S1, bottom welding is carried out using hand tungsten argon arc welding；
S2, the motor-driven welding machine of magnetic-type all positon is adsorbed on pipeline to be welded, welding parameters carry out default debugging；
S3, starting welding machine fill welding since 6 points of pipeline side, and 12 positions stop, and welding tractor sky is gone to
The pipeline other side is welded from 6 point joints, completes filled layer welding；
S4, welding machine the capping layer since 6 point of pipeline side weld, until 12 positions stop；Welding machine trolley sky is gone to
The pipeline other side welds from 6 point joints, completes the welding of weld bond.
In still another embodiment of the present invention, gage of wire is used in above-mentioned magnetic-type all positon mechanised welding welding process
ForWelding wire, welding wire is in CO2Or Ar+CO2It is welded under mixed gas protected；It can be made using above-mentioned welding wire
It is welded with biggish welding parameter, to improve welding quality；
In still another embodiment of the present invention, protective gas uses 80%Ar and 20%CO2Mixed gas；Work as use
Ar+CO2When mixed gas is welded, experiment proves that the CO of 80% Ar+20%2Combined mixed gas, welding process are steady
It is fixed, it splashes small.It is welded under straight argon gas shielded, the wetability in molten bath is poor, and molten bath poor fluidity be easy to cause heat to concentrate, shape
At humping weld, handling difference is welded.CO is added in argon gas2Gas improves the oxidisability of protective gas, molten bath wetability
Good, molten bath mobility is improved, and enables molten bath drawout, and appearance of weld and welding are handling good.And due to controlling
CO2Additional amount, so that the oxidisability of protective gas is not had pure CO2So strong, the splashing generated in welding process significantly reduces,
While improving handling, deposition efficiency is improved；
In still another embodiment of the present invention, in the step S1, argon tungsten-arc welding design parameter are as follows: electric current 80~
110A, voltage are 20~22V, and movement speed is 34~35cm/min, and gas flow is 20~25L/min；Use diameter forWelding rod；Protective gas is Ar gas；It is too fast in downhand position since to weld its speed of welding more difficult to control for prime coat
It is then easy to wear silk, is then easy to appear overlap slowly excessively, need welder to pass through the observation to molten bath to be adjusted at any time, therefore take
The mode of hand tungsten argon arc welding carries out；
In still another embodiment of the present invention, in the step S3 and S4, the specific welding of filled layer and capping layer is joined
Number are as follows: 180~220A of welding current, 20~24V of weldingvoltage, 20~24cm/min of movement speed, wire feed rate be 750~
850cm/min, electrode extension are 8~12mm, and swing speed is 160~180 times/min, and the amplitude of oscillation is arrived with weld metal deposition
Subject to welding bead edge；Gas flow is 20~25L/min；It should be according to welding procedure specification (WPS), solder technologist's tune before use
Required welding procedure data out, can start weld job.Using said welding method parameter, the same of welding efficiency is being improved
When, welded seam has interlayer weld seam filling metal smooth, and each layer weld edge fusion is good, improves welding quality；
In still another embodiment of the present invention, motor-driven welding method further includes being located in advance to pipeline nozzle end face
Reason, the pretreatment are to treat nozzle end face progress retaining wall on slope and the cleaning in welded tube road；
In still another embodiment of the present invention, the motor-driven welding method further includes that Welded Joints carry out conventional inspection
It tests, inspection project includes visual examination, and with weld seam and base material rounding off, surface does not have incomplete fusion, slag inclusion, stomata, overlap, stings
The welding defects such as side are qualification.
In still another embodiment of the present invention, pipeline to be welded is A106-B material；
In still another embodiment of the present invention, when welding non magnetic pipeline (such as austenitic stainless steel), Bao Tie can be used
Leather makees simple track, and anti-pollution processing is done between track and non magnetic pipeline, and the motor-driven welding machine of magnetic-type all positon is adsorbed onto
Non magnetic pipeline can be welded on track.This track only needs that the motor-driven welding machine of magnetic-type all positon is allowed to adsorb, by magnetic force
Welding machine is set to walk with frictional force, therefore track production is simple.
In still another embodiment of the present invention, above-mentioned motor-driven welding method answering in process pipe welding is provided
With.
Technical solution of the present invention is further elaborated combined with specific embodiments below.
Embodiment 1
The present invention uses pipeline to be welded for A106-B material, 219 × 8.18mm of specification Φ.
Specific welding method is as follows:
1: welding procedure
1.1: pipeline nozzle end face being pre-processed, pretreatment specific method is the nozzle end face progress for treating welded tube road
Retaining wall on slope and cleaning.
1.2: pipeline carries out processing group pair according to code requirement, carries out bottom welding using hand tungsten argon arc welding.Welding rod
Diameter isArgon tungsten-arc welding design parameter are as follows: electric current 100A, voltage 20V, movement speed 34cm/min, protection
Gas uses Ar gas, gas flow 22L/min.
1.3: the motor-driven welding machine of magnetic-type all positon is adsorbed onto before being welded on pipe the default debugging of every welding parameter.
1.4: starting welding machine fills welding since 6 points of pipeline side, until 12 positions stop.Welding tractor
Sky goes to the pipeline other side, welds from 6 point joints, completes the welding of this side filled layer.
1.5: welding machine capping layer since 6 point of pipe side welds, until 12 positions stop.Welding machine trolley sky is gone to
The pipeline other side welds from 6 point joints, completes the welding of entire weld bond.
2: the motor-driven welding machine of all positon uses
2.1: debugging gas proportioning device argon gas and carbon dioxide, the two gas volume ratio are 8:2, and gas flow control is
20L/min；Connecting welding ground wire.
2.2: starting welding machine and remote controler.
2.3: welding machine being adsorbed on pipeline, the four wheels of welding machine are all in close contact with pipeline.
2.4: adjustment welding gun telescopic arm is subject to welding gun center at groove center to suitable position.
2.5: installation welding wire, adjustment welding wire do body length to suitable position.Gage of wire is
2.6: filled layer and capping layer welding parameter specifically: welding current 200A, weldingvoltage 22V, movement speed
22cm/min, wire feed rate 800cm/min, electrode extension 10mm, swing speed are 170 times/min, and the amplitude of oscillation is to weld
It stitches subject to metal deposition to welding bead edge.
2.7: adjustment welding gun inclination angle.Inclination angle is that 10 degree or so of hypsokinesis (welding gun axis is before pipe tangent line) is advisable.
2.8: according to pipeline wall thickness and bevel angle, inclination angle between appropriate adjustment welding gun and groove prevents side wall
Incomplete fusion defect.
2.9: requiring to complete weld bond filling, the welding of capping according to welding conditions.
2.10: weld bond presentation quality inspection, with weld seam and base material rounding off, surface do not have incomplete fusion, slag inclusion, stomata,
The welding defects such as overlap, undercut are qualification.
2.11: welding finishes, and welding machine is cleaned out vanning after welding gun is cooling and is saved.
Embodiment 2
The present invention uses pipeline to be welded for A106-B material, specification Φ 273 × 9.27.Specific welding method is the same as embodiment 1.
Embodiment 3
The present invention uses pipeline to be welded for A106-B material, specification Φ 323 × 10.31.The same embodiment of specific welding method
1。
Embodiment 4
The present invention uses pipeline to be welded for A106-B material, specification Φ 355.6 × 7.92.The same embodiment of specific welding method
1。
Embodiment 5
The present invention uses pipeline to be welded for A106-B material, specification Φ 406.4 × 12.7.The same embodiment of specific welding method
1。
Embodiment 6
The present invention uses pipeline to be welded for A106-B material, specification Φ 450 × 14.27.The same embodiment of specific welding method
1。
Embodiment 7
The present invention uses pipeline to be welded for A106-B material, specification Φ 508 × 15.09.The same embodiment of specific welding method
1。
Embodiment 8
The present invention uses pipeline to be welded for A106-B material, specification Φ 610 × 17.48.The same embodiment of specific welding method
1。
Magnetic-type all-position automatic welding technology technique effect ratio
As seen from the above table, various specifications pipeline to be welded is welded using welding technique of the present invention can obtain it is good
Good welding effect, welding efficiency are significantly improved.
It should be noted that above example is only used to illustrate the technical scheme of the present invention rather than is limited.Although ginseng
It is described the invention in detail according to given example, but those skilled in the art can be as needed to this hair
Bright technical solution is modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. a kind of motor-driven welding method of magnetic-type pipeline all-position, which is characterized in that the welding method includes:
S1, bottom welding is carried out using hand tungsten argon arc welding；
S2, the motor-driven welding machine of magnetic-type all positon is adsorbed on pipeline to be welded, welding parameters carry out default debugging；
S3, starting welding machine fill welding since 6 points of pipeline side, and 12 positions stop, and welding tractor sky goes to pipeline
The other side is welded from 6 point joints, completes filled layer welding；
S4, welding machine the capping layer since 6 point of pipeline side weld, until 12 positions stop；Welding machine trolley sky goes to pipeline
The other side welds from 6 point joints, completes the welding of weld bond.
2. a kind of magnetic-type motor-driven welding method of pipeline all-position as described in claim 1, which is characterized in that use welding wire
Diameter isWelding wire, welding wire is in CO2Or Ar+CO2It is welded under mixed gas protected.
3. a kind of magnetic-type motor-driven welding method of pipeline all-position as described in claim 1, which is characterized in that protective gas
Using 80%Ar and 20%CO2Mixed gas.
4. a kind of magnetic-type motor-driven welding method of pipeline all-position as described in claim 1, which is characterized in that the step
In S1, argon tungsten-arc welding design parameter are as follows: 80~110A of electric current, voltage are 20~22V, and movement speed is 34~35cm/min,
Gas flow is 20~25L/min.
5. a kind of magnetic-type motor-driven welding method of pipeline all-position as described in claim 1, which is characterized in that the step
In S3 and S4, the specific welding parameter of filled layer and capping layer are as follows: 180~220A of welding current, 20~24V of weldingvoltage are moved
Dynamic 20~24cm/min of speed, wire feed rate are 750~850cm/min, and electrode extension is 8~12mm, and swing speed is
160~180 times/min, the amplitude of oscillation is subject to weld metal deposition to welding bead edge；Gas flow is 20~25L/min.
6. a kind of magnetic-type motor-driven welding method of pipeline all-position as described in claim 1, which is characterized in that mechanised welding weldering
The method of connecing further includes pre-processing to pipeline nozzle end face, and the pretreatment is the nozzle end face progress groove for treating welded tube road
Processing and cleaning.
7. a kind of magnetic-type motor-driven welding method of pipeline all-position as described in claim 1, which is characterized in that described motor-driven
Welding method further includes that Welded Joints carry out routine inspection, and inspection project includes visual examination: round and smooth with base material with weld seam
Transition, it is qualification that surface, which does not have incomplete fusion, slag inclusion, stomata, overlap, undercut,.
8. a kind of magnetic-type motor-driven welding method of pipeline all-position as described in claim 1, which is characterized in that pipeline to be welded
For A106-B material.
9. a kind of magnetic-type motor-driven welding method of pipeline all-position as described in claim 1, which is characterized in that welding is non-magnetic
Property pipeline when, make simple track with sheet iron, anti-pollution processing done between track and non magnetic pipeline, by magnetic-type all positon
Motor-driven welding machine, which is adsorbed on track, welds non magnetic pipeline.
10. application of any one of the claim 1-9 motor-driven welding method in process pipe welding.
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| CN201910133743.9A CN109865921A (en) | 2019-02-22 | 2019-02-22 | Magnetic-type pipeline all-position mechanised welding welding procedure |
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Application publication date: 20190611 |
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