CN109773311A - A kind of horizontal abutment joint single side buried arc welding method - Google Patents
A kind of horizontal abutment joint single side buried arc welding method Download PDFInfo
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- CN109773311A CN109773311A CN201910152128.2A CN201910152128A CN109773311A CN 109773311 A CN109773311 A CN 109773311A CN 201910152128 A CN201910152128 A CN 201910152128A CN 109773311 A CN109773311 A CN 109773311A
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Abstract
The present invention discloses a kind of horizontal abutment joint single side buried arc welding method, comprising the following steps: step S100, provides welded blank, opens up single side double V-groove in the front of welded blank, groove includes upper groove and lower groove, and lower groove is parallel to horizontal plane；Step S200, it is sticked in the position at the back side of welded blank and corresponding groove and high temperature resistant and assists the molding gasket of sealing run；Step S300, it is laid with prime material in the bottom of groove, prime material all blocks the bottom gap of groove, and prime material is broken welding wires；Step S400, carrying out backing welding using submerged-arc welding forms sealing run, is then successively filled weldering and cosmetic welding.By the way that horizontal abutment joint is used single-sided welding, when welding, backing welding, filling weldering and cosmetic welding are all made of submerged-arc welding mode and weld, and can effectively promote speed of welding and quality, reduce operation difficulty, while the welding quality after shaping is good, and welding surroundings are good.
Description
Technical field
The present invention relates to welding technology field more particularly to a kind of horizontal abutment joint single side buried arc welding methods.
Background technique
Have three ways, such as at present for the welding of horizontal abutment joint following:
The first, whole process uses CO2Semiautomatic welding carries out bottoming, filling and capping using the welding wire that diameter is 1.2mm
Weldering, has the disadvantage that the horizontal abutment joint for ship hull plate, inner hull, siding etc., is not easy in this welding method welding process
Control is influenced vulnerable to factors such as welder technology, welding position, welding conditions, and welding quality is relatively low, and appearance of weld is uneven,
Weld seam is also easy to produce the defects of crackle, shrinkage cavity, stomata in welding process, and postwelding is also required to that a large amount of working hour is spent to repair weld seam
It mends, polishing, thus greatly reduces the welding efficiency of horizontal butt weld, increase production cost；
Second: 2 CO are clamped using the guide tracked automatic welding carriage of magnetic2Welding gun carries out Double Wire Welding, with CO2Semiautomatic welding
Welding manner is similar, although having the disadvantage that CO2Semiautomatic welding is improved, and is improved welding efficiency, but is welded
Difficulty is big, needs to operate two welding guns simultaneously, and welder is not easy to grasp welding skill, needs the welders training period longer, Er Qieshuan
Welding arc light is very big in the welding process for wire bond, easily causes biggish injury to the body of welder；
The third: using CO2Semiautomatic welding horizontal position welding backing welding, submerged-arc welding filling weldering and cosmetic welding combined welding method, are adopted
It is 4~12mm with gap, without the unilateral double V-groove form for staying root, ceramic substrate is pasted at the back side, realize single face welding and double face shaping, this
Most stable of submerged-arc welding is applied to horizontal abutment joint by kind of welding manner, have the disadvantage that this welding manner by groove quality,
The influence of the factors such as gap and bevel angle cannot directly use submerged-arc welding, also need to use CO2Semiautomatic welding carries out bottoming soldering and sealing, right
For horizontal butt welding, the difficulty of backing welding is larger, with traditional CO2Equally easily there is welding defect in semiautomatic welding, and welds
It connects inefficient.
Summary of the invention
It is easy to operate the purpose of the present invention is to provide a kind of horizontal abutment joint single side buried arc welding method, welding effect
Rate is high, and welding quality is good.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of horizontal abutment joint single side buried arc welding method is provided, comprising the following steps:
Step S100, welded blank is provided, opens up single side double V-groove, the groove packet in the front of the welded blank
Groove and lower groove are included, the lower groove is parallel to horizontal plane；
Step S200, it is sticked in the position at the back side of the welded blank and the corresponding groove and high temperature resistant and assists the back side
The gasket of appearance of weld；
Step S300, it is laid with prime material in the bottom of the groove, the prime material all blocks the groove
Bottom gap, the prime material are broken welding wires；
Step S400, backing welding is carried out using submerged-arc welding and forms sealing run, be then successively filled weldering and lid
Face weldering.
As a kind of preferred embodiment of horizontal abutment joint single side buried arc welding method, the tilt angle of the upper groove is
40 °~50 °；And/or the tilt angle of used welding wire is 20 °~35 ° when the submerged-arc welding.
Welding parameter as a kind of preferred embodiment of horizontal abutment joint single side buried arc welding method, when the backing welding
Are as follows: welding current is 390A~420A, and arc voltage is 24V~28V, and speed of welding is 370~400mm/min.
As a kind of preferred embodiment of horizontal abutment joint single side buried arc welding method, the gasket includes shim body, institute
It states shim body to be made of ceramics, the shim body is provided with corresponding with the groove position close to the side of the groove
Arc groove, the shim body away from the arc groove side be arranged reinforcer.
As a kind of preferred embodiment of horizontal abutment joint single side buried arc welding method, the shim body is described with opening up
The first side of arc groove, is connected to first side and the second side at the second side opposite with the first side
Between third side and the 4th side, the reinforcer is fitted in second side, and the both ends of the reinforcer width direction
Extend respectively to the third side and the 4th side.
As a kind of preferred embodiment of horizontal abutment joint single side buried arc welding method, the reinforcer is made of metal,
The one side that the reinforcer is bonded with the shim body is bonded in the shim body by heat-conducting glue resistant to high temperature.
As a kind of preferred embodiment of horizontal abutment joint single side buried arc welding method, the shim body is equipped with the arc
The one side of groove is pasted with glass fabric.
As a kind of preferred embodiment of horizontal abutment joint single side buried arc welding method, the gasket is fixed on institute by card code
The back side of welded blank is stated, the card code is connect with the welded blank, one side of the card code close to the welded blank
Equipped with the fixing groove accommodated for the gasket, wedge block is detachably set between the slot bottom of the fixing groove and the gasket.
As a kind of preferred embodiment of horizontal abutment joint single side buried arc welding method, the prime material and the submerged-arc welding
Welding wire material it is consistent.
As a kind of preferred embodiment of horizontal abutment joint single side buried arc welding method, the prime material be laid with a thickness of
2mm~3mm, the width in the gap are 0~5mm.
The embodiment of the present invention has the beneficial effect that by the way that by horizontal abutment joint, using single-sided welding, when welding, backing welding is filled out
It fills weldering and cosmetic welding is all made of submerged-arc welding mode and welds, can effectively promote speed of welding and quality, reduce operation difficulty, together
When welding quality after molding it is good, and sealing run molding is good, does not need again to weld the back side, welding surroundings are good；It is logical
It crosses and sets the structure being parallel to the horizontal plane for lower groove, broken welding wires can be effectively prevented and fall, while can also effectively prevent welding
The welding wire tenesmus melted when connecing, guarantees the welding quality of backing welding.
Detailed description of the invention
The present invention will be further described in detail below based on the drawings and embodiments.
Structural schematic diagram when Fig. 1 is the horizontal abutment joint single side submerged arc welding of the embodiment of the present invention.
Fig. 2 is the schematic cross-sectional view of the gasket of the embodiment of the present invention.
Fig. 3 is the structural schematic diagram for the groove that the welded blank of the embodiment of the present invention opens up.
Fig. 4 is in the groove of the welded blank of the embodiment of the present invention filled with the state diagram after prime material.
Fig. 5 is state diagram of the welded blank of the embodiment of the present invention in backing welding.
Fig. 6 is the state diagram of the welded blank of the embodiment of the present invention when filling welding.
Fig. 7 is state diagram of the welded blank of the embodiment of the present invention in cosmetic welding.
In figure:
1, welded blank；2, groove；21, lower groove；22, upper groove；23, gap；3, prime material；4, welding wire；5, it pads
Piece；51, shim body；52, reinforcer；53, arc groove；54, glass fabric；6, card code；7, wedge block；8, weld seam.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
As shown in Fig. 1 to 7, the horizontal abutment joint single side buried arc welding method of the embodiment of the present invention, comprising the following steps:
Step S100, welded blank 1 is provided, opens up single side double V-groove 2, the groove in the front of the welded blank 1
2 include upper groove 22 and lower groove 21, and the lower groove 21 is parallel to horizontal plane；
Step S200, it is sticked in the position at the back side of the welded blank 1 and the corresponding groove 2 and high temperature resistant and assists carrying on the back
The molding gasket 5 of face weld seam 8；
Step S300, it is laid with prime material 3 in the bottom of the groove 2, the prime material 3 all blocks the groove
2 bottom gap 23, the prime material 3 are broken welding wires；
Step S400, backing welding is carried out using submerged-arc welding and forms sealing run 8, be then successively filled weldering and lid
Face weldering.
The horizontal abutment joint single side buried arc welding method of the embodiment of the present invention has the advantage that
1, backing welding, filling weldering and cosmetic welding are carried out using submerged-arc welding, the requirement to the operative skill of welder can be reduced,
And there is no the injury such as arc light and flue dust when welder's welding, effectively improve welding surroundings；
2, submerged arc is welded with the effect of solder flux, and in molten bath, one protective layer of form of expression can obtain to hold the molten bath of tenesmus
Good weld seam 8 must be shaped, reduces the polishing amount of weld seam 8, improves welding quality, in particular improve the welding of backing welding
Quality；
3, submerged-arc welding significantly reduces weld seam under the premise of guaranteeing that weld seam 8 shapes uniform by using biggish welding parameter
Layer road number, to improve welding efficiency, reduce labor intensity, achieved the purpose that cost efficiency.
In the present embodiment, welding parameter when backing welding are as follows: welding current is 390A~420A, arc voltage 24V
~28V, speed of welding are 370~400mm/min.
Welding parameter when filling weldering are as follows: welding current is 400A~450A, and arc voltage is 25V~30V, speed of welding
For 400~600mm/min.
Welding parameter when cosmetic welding are as follows: welding current is 400A~450A, and arc voltage is 25V~30V, speed of welding
For 400~600mm/min.
Also, the diameter of the welding wire 4 used when submerged arc welding is 3.2mm.
Optionally, the tilt angle of the upper groove 22 is 40 °~50 °, it is preferable that above the tilt angle of groove 22 is
43 °, and the tilt angle of used welding wire 4 is 20 °~35 ° when the submerged-arc welding.When this design can be such that submerged-arc welding operates
Welding bead is also able to satisfy between last one of weld seam 8 of welding requirements, especially each layer and upper groove 22 under smaller angle
Angle.
In one embodiment, the prime material 3 be laid with a thickness of 2mm~3mm, the width in the gap 23 is 0~
3mm.The laying depth of prime material 3 cannot be blocked up, and optimal is exactly just to cover subject to the gap 23 of entire groove 2, blocked up
Also easily there is conventional welding defect, such as stomata etc. so that prime coat is uneven in meeting in weld seam 8.
In addition, increase prime material 3, prime material 3 be metal broken welding wires, prime coat welding current than filling weldering and
The welding current of cosmetic welding is small, because this kind of iron powder filler of broken welding wires is easier to fusing compared with timber and forms molten bath, lesser welding
Heat input can also prevent the sealing run of welded blank 1 from burning.
In one embodiment, the gasket 5 includes shim body 51, and the shim body 51 is made of ceramics, the pad
Piece ontology 51 is provided with arc groove 53 corresponding with 2 position of groove, the shim body close to the side of the groove 2
51 are arranged reinforcer 52 away from the side of the arc groove 53.By the way that arc groove 53 is arranged, it can prevent gasket 5 from influencing weldering
The quality of 8 forming of seam, and reinforcer 52 is set, the intensity and heat-resisting ability of gasket 5 can be enhanced.
In the present embodiment, the shim body 51, which has, opens up the first side of the arc groove 53, with described the
The opposite second side of one side, the third side being connected between first side and the second side and the 4th side, institute
State reinforcer 52 and be fitted in second side, and the both ends of 52 width direction of the reinforcer extend respectively to the third side and
4th side.Above structure make reinforcer 52 formed one installation shim body 51 trench structure, shim body 51
Divide and be inserted into trench structure, partially protrudes from outside trench structure.
Further, the reinforcer 52 is made of metal, and the reinforcer 52 is bonded with the shim body 51
One side is bonded in the shim body 51 by heat-conducting glue resistant to high temperature.Heat-conducting glue not only can be by reinforcer 52 and gasket
Ontology 51 is fixedly connected, and the temperature of ceramic gasket can also be transmitted to reinforcer 52, realizes rapid cooling.
In one embodiment, the one side that the shim body 51 is equipped with the arc groove 53 is pasted with glass fabric
54.By the way that glass fabric 54 is arranged, shim body 51 can be made to be bonded with welded blank 1 closer, reduce root base weldering
Weld blowhole, meanwhile, glass fabric 54 can high temperature resistant, prevent the back side from burning, guarantee sealing run 8 molding.
In one embodiment, the gasket 5 is fixed on the back side of the welded blank 1, the card code 6 and institute by card code 6
The connection of welded blank 1 is stated, the card code 6 is equipped with the fixation accommodated for the gasket 5 close to the one side of the welded blank 1
Wedge block 7 is detachably arranged in slot between the slot bottom of the fixing groove and the gasket 5.It, can by setting card code 6 and wedge block 7
Gasket 5 to be clamped on to the side of welded blank 1, prevents the welding wire 4 of submerged-arc welding from pushing up and wear or push up loose gasket 5.
Card code 6 can be used magnetic mode and be fixed on welded blank 1, and welded plate can also be fixed on by the way of spot welding
On material 1.
Card code 6 includes first plate parallel with welded blank 1, and the both ends of the first plate are vertically connected with the second plate and third
Plate, forms fixing groove between the first plate, the second plate and third plate, the one end of the second plate and third plate far from the first plate respectively with weldering
The plate of 2 two sides of groove of jointed sheet material 1 connects, and wedge block 7 is fastened between gasket 5 and the first plate.
If card code 6 is fixed on welded blank 1 using magnetic, in the one end of the second plate and third plate far from the first plate
Embedded with magnet.
If card code 6 is fixed on welded blank 1 using spot welding, the one end of the second plate and third plate far from the first plate with
1 spot welding of welded blank.
In one embodiment, the prime material 3 is consistent with 4 material of welding wire of the submerged-arc welding, and 3 institute of the prime material
The diameter of the broken welding wires used is 1mm, length 1mm.
The present invention compares CO using horizontal abutment joints such as the direct welded hull outside plate of submerged-arc welding, siding, inner hulls2It is semi-automatic
The mode of weldering plus submerged arc welding, welding process simplify, and submerged-arc welding construction environment is better than CO2Semiautomatic welding, smoke dust, without arc
Light improves automation efficiency, reduces welder's labor intensity, and the method can reduce face of weld polishing amount, can reach energy conservation
The purpose of consumption reduction.
In the description of this specification, the description of reference term " embodiment " etc. means the specific spy in conjunction with the embodiment
Sign, structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned
The schematic representation of term is not necessarily referring to identical embodiment.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification be only be to understand device, those skilled in the art should
It considers the specification as a whole, the technical solutions in the embodiments can also be appropriately combined, and forming those skilled in the art can
With the other embodiments of understanding.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of horizontal abutment joint single side buried arc welding method, which comprises the following steps:
Step S100, welded blank is provided, opens up single side double V-groove in the front of the welded blank, the groove includes upper
Groove and lower groove, the lower groove are parallel to horizontal plane；
Step S200, it is sticked in the position at the back side of the welded blank and the corresponding groove and high temperature resistant and assists sealing run
Molding gasket；
Step S300, it is laid with prime material in the bottom of the groove, the prime material all blocks the bottom of the groove
Gap, the prime material are broken welding wires；
Step S400, backing welding is carried out using submerged-arc welding and forms sealing run, be then successively filled weldering and cosmetic welding.
2. horizontal abutment joint single side buried arc welding method according to claim 1, which is characterized in that the upper groove inclines
Rake angle is 40 °~50 °；And/or the tilt angle of used welding wire is 20 °~35 ° when the submerged-arc welding.
3. horizontal abutment joint single side buried arc welding method according to claim 1, which is characterized in that when the backing welding
Welding parameter are as follows: welding current is 390A~420A, and arc voltage is 24V~28V, and speed of welding is 370~400mm/min.
4. horizontal abutment joint single side buried arc welding method according to claim 1, which is characterized in that the gasket includes pad
Piece ontology, the shim body are made of ceramics, and the shim body is provided with and the slope close to the side of the groove
Reinforcer is arranged away from the side of the arc groove in the corresponding arc groove in mouth position, the shim body.
5. horizontal abutment joint single side buried arc welding method according to claim 4, which is characterized in that the shim body tool
There is the first side for opening up the arc groove, the second side opposite with the first side, be connected to first side and institute
The third side and the 4th side between second side are stated, the reinforcer is fitted in second side, and the reinforcer width
The both ends in direction extend respectively to the third side and the 4th side.
6. horizontal abutment joint single side buried arc welding method according to claim 5, which is characterized in that the reinforcer uses
Metal is made, and the one side that the reinforcer is bonded with the shim body is bonded in the gasket by heat-conducting glue resistant to high temperature
On ontology.
7. horizontal abutment joint single side buried arc welding method according to claim 4, which is characterized in that the shim body is set
There is the one side of the arc groove to be pasted with glass fabric.
8. horizontal abutment joint single side buried arc welding method according to claim 1, which is characterized in that the gasket passes through card
Code is fixed on the back side of the welded blank, and the card code is connect with the welded blank, and the card code is close to the welded plate
The one side of material is equipped with the fixing groove accommodated for the gasket, is detachably arranged between the slot bottom of the fixing groove and the gasket
Wedge block.
9. horizontal abutment joint single side buried arc welding method according to claim 1, which is characterized in that the prime material with
The welding wire material of the submerged-arc welding is consistent.
10. horizontal abutment joint single side buried arc welding method according to claim 1, which is characterized in that the prime material
Be laid with a thickness of 2mm~3mm, the width in the gap is 0~5mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152128.2A CN109773311A (en) | 2019-02-28 | 2019-02-28 | A kind of horizontal abutment joint single side buried arc welding method |
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| CN201910152128.2A CN109773311A (en) | 2019-02-28 | 2019-02-28 | A kind of horizontal abutment joint single side buried arc welding method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112171093A (en) * | 2020-09-16 | 2021-01-05 | 中船黄埔文冲船舶有限公司 | Submerged arc automatic welding process for transverse welding position of low-alloy high-strength steel thick plate |
| CN113210797A (en) * | 2021-05-10 | 2021-08-06 | 芜湖造船厂有限公司 | Ship plate and member welding process method |
| CN113878208A (en) * | 2021-10-27 | 2022-01-04 | 江南造船(集团)有限责任公司 | Single-side submerged arc welding method for marine cargo tank |
| CN115178830A (en) * | 2022-06-24 | 2022-10-14 | 广船国际有限公司 | Welding method for carrying outboard plate on board side |
| CN116329799A (en) * | 2023-06-01 | 2023-06-27 | 武汉海德龙仪表科技有限公司 | Welding device and method for manufacturing and processing liquid level meter |
| JP7441126B2 (en) | 2020-06-12 | 2024-02-29 | 川崎重工業株式会社 | Double-sided submerged arc welding equipment and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20190521 |