CN207077082U - Bottoming welder is combined in submerged-arc welding with gas shielded arc welding - Google Patents
Bottoming welder is combined in submerged-arc welding with gas shielded arc welding Download PDFInfo
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- CN207077082U CN207077082U CN201720931738.9U CN201720931738U CN207077082U CN 207077082 U CN207077082 U CN 207077082U CN 201720931738 U CN201720931738 U CN 201720931738U CN 207077082 U CN207077082 U CN 207077082U
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Abstract
The utility model belongs to submerged-arc welding prime coat welding procedure technical field, and in particular to bottoming welder is combined in a kind of submerged-arc welding with gas shielded arc welding, and it includes a submerged arc welding machine and a gas shielded welding machine；It also includes a combined unit, and the combined unit is mainly by support, pipe support and wig-wag；One end of the support is fixed on submerged arc welding machine, and the other end is towards in front of submerged-arc welding gun axis of travel；The upper end of the pipe support is connected by vertically moving governor motion with support；The wig-wag is connected to the lower end of pipe support by transverse shifting governor motion, and the wig-wag rifle on wig-wag is clamped gas protective welding gun.Gas protective welding gun is fixed on submerged arc welding machine by the utility model by combined unit; prime coat welding is carried out by gas shielded arc welding; submerged-arc welding gun is then filled layer welding; form double wire welding; solve the problems, such as submerged-arc welding easy burn-through when prime coat welds, improve welding efficiency to a certain extent.
Description
Technical field
The utility model belongs to submerged-arc welding prime coat welding procedure technical field, and in particular to a kind of submerged-arc welding is protected with gas
Shield weldering joint bottoming welder.
Background technology
Due to its welding quality stable, welding production efficiency is high for submerged-arc welding, the advantages that no arc light and seldom flue dust, make its into
For the main welding method in the important structure steel fabrications such as pressure vessel, pipeline section manufacture, box beam column.Submerged arc welding electric current electricity
Greatly, heat input is high for pressure, the easily burn-through component, therefore weld the preceding group to component to requiring high in prime coat welding, so
And in actual production, component is difficult due to the reasons such as its size is larger, the limitation of drafting error, equipment condition, its fixation group pair
Reach design requirement, the problems such as such as misalignment, gap are excessive, root face is too small occur, cause prime coat poor welding quality, occur each
Kind of weld defect, under the influence of one of welding sequence.Simultaneously during submerged arc welding, because component bottoming lamellar spacing is small, because
This cleaning welding slag trouble, is often required to by pneumatic chipping hammer class instrument, not only process is cumbersome also increases labour cost.
Therefore, for the submerged-arc welding of large-scale component, it would be desirable to welding manner is improved, solved due to fixed before weldering
Group to do not reach design requirement and bring problems of welded quality and prime coat scarfing cinder difficulty the problem of.
Utility model content
For above-mentioned technical problem, the purpose of this utility model is that providing one kind can ensure that submerged-arc welding prime coat welds
Bottoming welder is combined in the submerged-arc welding of quality with gas shielded arc welding.
To achieve the above object, technical solution adopted in the utility model is：
Bottoming welder is combined in a kind of submerged-arc welding with gas shielded arc welding, and it includes a submerged arc welding machine and a gas is protected
Protect welding machine；It is characterized in that：It also includes a combined unit, and the combined unit is mainly by support, pipe support and wig-wag；Institute
The one end for stating support is fixed on submerged arc welding machine, and the other end is towards in front of submerged-arc welding gun axis of travel；The upper end of the pipe support leads to
Cross and vertically move governor motion and be connected with support；The wig-wag is connected to the lower end of pipe support by transverse shifting governor motion,
Wig-wag rifle on wig-wag is clamped gas protective welding gun.
The spacing between the welding wire on welding wire and gas protective welding gun on the submerged-arc welding gun is 50 ~ 70mm.
The support is bar steel plate or steel pipe, and pipe support is steel pipe, and it is fastener to vertically move governor motion.
The transverse shifting governor motion includes a fastener and a steel pipe, the steel pipe are fixed by fastener and pipe support
Connection, one end of the steel pipe is fixedly connected with wig-wag.
Welding wire on the gas protective welding gun is solid core welding wire.
The utility model has the advantages that：
（1）Gas protective welding gun is fixed on submerged arc welding machine by the utility model by combined unit, passes through gas shield
Weldering carries out prime coat welding, and submerged-arc welding gun is then filled layer welding, forms double wire welding, solve submerged-arc welding in prime coat
During welding the problem of easy burn-through, by controlling two distances between weldingwires to be improved to a certain extent from the effect for reaching double wire welding
Welding efficiency, while overall semi-automatic welding can be realized by wig-wag welding, without welding manually, and prime coat removes the gred
It is convenient.For group before weldering to component devious, prime coat appearance of weld is good, the defects of in the absence of burn-through, slag inclusion, stomata, weldering
It is high to stitch quality.
（2）Welding for different model can make mariages distance in the range of 50 ~ 70mm, Double Wire Welding by adjusting means
It is good to connect quality.
（3）By controlling the submerged arc welding machine speed of travel, wig-wag swings parameter, regulates and controls electric arc penetration power, ensures bottom weldering
Quality is connect, realizes overall semi-automatic welding.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Fig. 2 is the utility model part combined unit structural representation.
Description of symbols in figure：1- submerged arc welding machines, 2- supports, 3- vertically move regulation, 4- pipe supports, 5- wig-wags, 6- transverse directions
Mobile regulation, 7- wig-wags rifle folder.
Embodiment
In order to more fully understand the utility model, the technical solution of the utility model is done with reference to embodiment and accompanying drawing
Further instruction（As shown in Figure 1-2）.
Embodiment one
Bottoming welder is combined in a kind of submerged-arc welding with gas shielded arc welding, and it includes a submerged arc welding machine 1 and a gas
Protect welding machine；It also includes a combined unit, and the combined unit is mainly by support 2, pipe support 4 and wig-wag 5；The support
2 one end is fixed on submerged arc welding machine 1（Particular location is that solder flux buckets pitch is adjusted on machine head of submerged-arc welding machine from place）, other end direction
In front of submerged-arc welding gun axis of travel；The upper end of the pipe support 4 is connected by vertically moving governor motion 3 with support 2（The pipe support
4 can vertically move regulation and fix along support 2, and pipe support 4 can also be moved up and down and fixed）；The wig-wag 5 passes through transverse direction
Mobile governor motion 6 is connected to the lower end of pipe support 4, and the wig-wag rifle folder 7 on wig-wag 5 is clamped gas protective welding gun.
The spacing between the welding wire on welding wire and gas protective welding gun on the submerged-arc welding gun is 50 ~ 70mm.Submerged-arc welding
Machine 1 is in welding process, and the wig-wag 5 in front clamps gas protective welding gun and carries out prime coat welding, and submerged-arc welding gun is then carried out
Packed layer welds, and forms double welding wire welding, and front and rear welding wire power supply combines for DCRP+DCRP.When two distances between weldingwires are less than 20mm
When, single molten bath list arc crater is formed, due to serious apart from two welding wire magnetic interferences of too small appearance, electric arc is unstable；When between two welding wires
Away from the double arc craters in single molten bath in 20 ~ 45mm, are formed, because blow force of arc effect makes molten bath form a projection, weldering between two arc craters
It is of poor quality to be seamed into type；As two distances between weldingwires >=50mm, two independent molten baths are formed, the interphase interaction of two electric arcs is small, into
Type is good；When double distances between weldingwires are excessive, rear cored arc can not utilize the waste heat of preceding welding wire welding bead, and the welding bead of formation is directly folded
Before being added on welding wire welding bead, high and narrow welding bead is formed, defect easily occurs, therefore double distances between weldingwires are preferably 50 ~ 70mm.
The support 2 is bar steel plate or steel pipe, and pipe support 4 is steel pipe, and it is fastener to vertically move governor motion 3.
The transverse shifting governor motion 6 includes a fastener and a steel pipe, and the steel pipe is solid by fastener and pipe support 4
Fixed connection, one end of the steel pipe is fixedly connected with wig-wag 5.
Welding wire on the gas protective welding gun is solid core welding wire.When being welded using solid core welding wire, it can avoid beating
The problem of bottom slagging-off is difficult.
To ensure double distances between weldingwires, according to the size of general submerged arc welding machine 1, the length of support 2 is 107mm, while support 2 one
The centre at end reserves the bar shaped bolt hole of 60mm length, is bolted on submerged arc welding machine 1；According to different model submerged arc welding machine
Size makes combined unit is mobile in X-axis to coordinate double welding wire distances, is bolted simultaneously.According to general submerged arc welding machine chi
Very little, the length of pipe support 4 is 447mm, ensures that gas protective welding gun and submerged-arc welding gun in same level linear distance, are adjusted by transverse shifting
Section mechanism 6 makes gas protective welding gun move in the Z-axis direction, adapts to different submerged arc welding machines.Made by vertically moving governor motion 3
Gas protective welding gun moves in Y-axis.For coordinate different model submerged arc welding machine, change combined unit in the X, Y, Z direction away from
From guarantee mariages is in optimal welding relative position.Wig-wag 5 can drive gas protective welding gun welding by connecting power supply
Swung in termination process, ensure the fusion of the side of groove two.Because gas shielded arc welding arc voltage and electric current are small, heat input
Small, simultaneously because gage of wire is small, formation molten bath scope is small, burn-through test specimen is not easy, for group before weldering to not reaching design requirement
Component, can also form good welding bead, welding quality is good.
It is that stent length direction, the length direction of pipe support 4, wig-wag 5 are traversing that above-mentioned X-axis, Y-axis, Z-direction are corresponding respectively
Direction.
Embodiment two
In order to more fully understand the utility model, below in conjunction with the accompanying drawings, embodiment one and specific test specimen this practicality is described newly
How type carries out the welding of test specimen（Referring to Fig. 1 Fig. 2）.
The Q345B steel plates that specific test specimen is 6mm, open 60 ° of double V-grooves, 2 ~ 4mm of gap, 1 ~ 2mm of root face, using embodiment
One device detailed process is as follows：
（1）Support 2 is bolted on submerged arc welding machine 1（The big Austria too MZ1250 in model mountain）On, pass through longitudinal shifting
Wig-wag 5, is connected on pipe support 4, by gas shielded arc welding by the dynamic fixed pipe support 4 of governor motion 3 by transverse shifting governor motion 6
Rifle is put into wig-wag rifle folder 7；
（2）Test specimen to be welded is placed on weld zone, according to test specimen putting position, regulation submerged arc welding machine 1 position, makes submerged-arc welding
Rifle alignment test specimen groove center, and welding wire and groove spacing are suitable.According to the position of submerged-arc welding gun, adjusting bracket 2, protect gas
It is 50 ~ 70mm that welding gun, which is protected, with submerged-arc welding gun horizontal range, regulation transverse shifting governor motion 6, makes gas protective welding gun and submerged arc
Welding gun is point-blank（I.e. in submerged-arc welding gun axis of travel）, regulation, which vertically moves governor motion 3, makes gas shielded arc welding flight lead
It is suitable from a distance from groove；
（3）The Current Voltage of two welding machines is regulated, connects the power supply of wig-wag 5, promotes the dolly of submerged arc welding machine 1 in test specimen
Upper examination is welded after walking one time, and visual examination is carried out after the completion of welding, and profiled surface is smooth, and width is consistent, in the absence of not melting
Close and surface pores, the defects of slag inclusion.Workpiece weld seam carries out ray and ultrasonic examination after 24h is completed in welding, it is desirable to comments
Surely it is I grade.Detected by macroscopical metallographic, the defects of incomplete fusion, crackle is not present in weld metal and heat affected area.Each mechanics
Performance indications（Hardness, stretching, bending, impact）Uniformly reach qualified index according to different industries standard.
It is described above be only Application Example of the present utility model, certainly can not with this come limit the utility model it
Interest field, therefore the equivalence changes made according to present utility model application the scope of the claims, still belong to the scope of protection of the utility model.
Claims (5)
1. bottoming welder is combined in a kind of submerged-arc welding with gas shielded arc welding, it includes a submerged arc welding machine（1）With a gas
Protect welding machine；It is characterized in that：It also includes a combined unit, and the combined unit is mainly by support（2）, pipe support（4）With
Wig-wag（5）；The support（2）One end be fixed on submerged arc welding machine（1）On, the other end is towards before submerged-arc welding gun axis of travel
Side；The pipe support（4）Upper end by vertically moving governor motion（3）With support（2）Connection；The wig-wag（5）Pass through horizontal stroke
To mobile governor motion（6）It is connected to pipe support（4）Lower end, wig-wag（5）On wig-wag rifle folder（7）Be clamped gas
Protect welding gun.
2. bottoming welder is combined in submerged-arc welding according to claim 1 with gas shielded arc welding, it is characterised in that：It is described to bury
The spacing between the welding wire on welding wire and gas protective welding gun on arc welding torch is 50 ~ 70mm.
3. bottoming welder is combined in submerged-arc welding according to claim 1 with gas shielded arc welding, it is characterised in that：The branch
Frame（2）For bar steel plate or steel pipe, pipe support（4）For steel pipe, governor motion is vertically moved（3）For fastener.
4. bottoming welder is combined in submerged-arc welding according to claim 3 with gas shielded arc welding, it is characterised in that：The horizontal stroke
To mobile governor motion（6）Including a fastener and a steel pipe, the steel pipe passes through fastener and pipe support（4）It is fixedly connected, institute
State one end and the wig-wag of steel pipe（5）It is fixedly connected.
5. bottoming welder is combined in the submerged-arc welding according to claim 1,2,3 or 4 with gas shielded arc welding, its feature exists
In：Welding wire on the gas protective welding gun is solid core welding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931738.9U CN207077082U (en) | 2017-07-28 | 2017-07-28 | Bottoming welder is combined in submerged-arc welding with gas shielded arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931738.9U CN207077082U (en) | 2017-07-28 | 2017-07-28 | Bottoming welder is combined in submerged-arc welding with gas shielded arc welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207077082U true CN207077082U (en) | 2018-03-09 |
Family
ID=61423737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720931738.9U Active CN207077082U (en) | 2017-07-28 | 2017-07-28 | Bottoming welder is combined in submerged-arc welding with gas shielded arc welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207077082U (en) |
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2017
- 2017-07-28 CN CN201720931738.9U patent/CN207077082U/en active Active
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