CN108788411A - Back chipping welding procedure is exempted from medium plate splicing - Google Patents
Back chipping welding procedure is exempted from medium plate splicing Download PDFInfo
- Publication number
- CN108788411A CN108788411A CN201810712004.0A CN201810712004A CN108788411A CN 108788411 A CN108788411 A CN 108788411A CN 201810712004 A CN201810712004 A CN 201810712004A CN 108788411 A CN108788411 A CN 108788411A
- Authority
- CN
- China
- Prior art keywords
- back chipping
- welding
- welding procedure
- exempted
- medium plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B23K9/18—Submerged-arc welding
-
- 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
- B23K9/235—Preliminary treatment
Abstract
The present invention provides a kind of splicings of medium plate to exempt from back chipping welding procedure, is related to structural steelwork technical field, including carry out groove preparation to steel plate, the groove of steel plate is unilateral double V-groove；Two blocks of steel plates are stayed according to steel plate thickness to 5 ° -10 ° of reversible deformation；By the carry out butt welding in spot of two blocks of steel plates, spot welding thickness control is in 5mm or less；The carry out submerged arc welding of two blocks of steel plates is ensured that penetration is welded thickness.The purpose of the present invention is to provide a kind of splicings of medium plate to exempt from back chipping welding procedure, eliminates back chipping technique, can improve operating environment, reduces noise, environmentally friendly and energy saving, is conducive to employee's physical and mental health.
Description
Technical field
The present invention relates to structural steelwork technical fields, exempt from back chipping Welder more particularly, to a kind of splicing of medium plate
Skill.
Background technology
Cut deal structure is extensive in the fields such as boats and ships deck of boat and shell, harbour machinery box beam, bridge spanning the sea panel
Using cut deal is connected on welding and accounts for important component part in structure steel fabrication, directly affects product quality and production efficiency.
Domestic nuclear power steel construction, Heavy Type Steel Structure workshop, crane girder, civil buildings high-rise steel structure etc. are required in using
Steel plate splicing welding joint full penetration technology.
The prior art needs again to turn over two blocks of cut deals after the completion of the welding of front when connecing cut deal to welding
Plate, then to splice plate welding bead carries out back chipping successively, bottoming, filling and capping operate after turnover panel, the above-mentioned prior art is
Back chipping processing is carried out to cut deal by carbon arc air gouging, passes through CO2It welds and bottoming is carried out successively to the cut deal for completing reverse side welding
Weldering, filling weldering carry out cosmetic welding by submerged-arc welding to cut deal.However existing welding operation efficiency is low, of high cost, cigarette
Dustiness contaminates environment, is unfavorable for energy-saving and emission-reduction and employee is physically and mentally healthy.
The information for being disclosed in the background technology part is merely intended to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Invention content
The purpose of the present invention is to provide a kind of splicings of medium plate to exempt from back chipping welding procedure, eliminates back chipping technique, energy
Enough improve operating environment, reduces noise, it is environmentally friendly and energy saving, be conducive to employee's physical and mental health.
To achieve the above object, the present invention provides following technical scheme：
Back chipping welding procedure is exempted from a kind of medium plate splicing of present invention offer, including：
Groove preparation is carried out to steel plate, the groove of the steel plate is unilateral double V-groove；
Two blocks of steel plates are stayed according to the steel plate thickness to 5 ° -10 ° of reversible deformation；
By the carry out butt welding in spot of two blocks of steel plates, spot welding thickness control is in 5mm or less；
The carry out submerged arc welding of two blocks of steel plates is ensured that penetration is welded thickness.
As a kind of further technical solution, the thickness of the steel plate is 16mm-50mm.
As a kind of further technical solution, the bevel angle of the steel plate is 25 ° -30 °.
As a kind of further technical solution, 4mm-6mm root faces are stayed in steel plate setting groove one end.
As a kind of further technical solution, the groove length is 4mm-27mm.
As a kind of further technical solution, is picked using carbon-dioxide arc welding and carry out two blocks of steel plates pair
Contact welds.
As a kind of further technical solution, the medium plate splicing exempts from back chipping welding procedure and further includes：
Surface inspection and ultrasonic wave UT flaw detections are carried out to welding bead.
As a kind of further technical solution, the medium plate splicing exempts from back chipping welding procedure and further includes：
Mechanical property test is carried out to the splice plate of the steel plate.
Back chipping welding procedure is exempted from medium plate splicing provided by the invention has advantageous effect below：
Back chipping welding procedure is exempted from a kind of medium plate splicing of present invention offer, including：Groove preparation, steel plate are carried out to steel plate
Groove be unilateral double V-groove；Two blocks of steel plates are stayed according to steel plate thickness to 5 ° -10 ° of reversible deformation；By carrying out pair for two blocks of steel plates
Contact welds, and spot welding thickness control is in 5mm or less；The carry out submerged arc welding of two blocks of steel plates is ensured that penetration is welded thickness.
Back chipping welding procedure is exempted from using medium plate provided by the invention splicing, achievees the effect that efficient, energy-saving and emission-reduction.It is first
First, it fundamentally solves the shortcomings of traditional back chipping process is loaded down with trivial details, weld interval is long, technology requires height, environmental pollution is big, makes
Welding efficiency improves 3-4 times, while first-time qualification rate is up to 100%；Secondly, the basic discharge for solving to be welded with harmful flue dust is to work
Its harmful effect that may be brought to operative employee's health and environment is eliminated in the pollution of environment, protects the body of welder strong
Health；Secondly, the occupational disease hazards of carbon arc air gouging arc light, flue dust and noise to welder are avoided；Also, it reduces welder and learns door
Sill reduce welders training expense；Weldquality caused by reducing human factor is bad, preferably ensures welding quality.
Back chipping welding procedure is exempted from a kind of medium plate splicing provided by the invention, eliminates back chipping technique, can improve work
Industry environment reduces noise, environmentally friendly and energy saving, is conducive to employee's physical and mental health.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is that medium plate provided in an embodiment of the present invention splicing exempts to prepare the structure of divided edge of steel plate in back chipping welding procedure
Schematic diagram.
Icon：1- steel plates；2- grooves.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 1 is please referred to, back chipping Welder is exempted to medium plate provided in an embodiment of the present invention splicing below in conjunction with attached drawing
Skill elaborates.
The embodiment provides a kind of splicings of medium plate to exempt from back chipping welding procedure, including：
Groove 2 is carried out to steel plate 1 to prepare, the groove 2 of steel plate 1 is unilateral double V-groove；
Two blocks of steel plates 1 are stayed according to 1 thickness of steel plate to 5 ° -10 ° of reversible deformation；
By the carry out butt welding in spot of two blocks of steel plates 1, spot welding thickness control is in 5mm or less；
The carry out submerged arc welding of two blocks of steel plates 1 is ensured that penetration is welded thickness.
Back chipping welding procedure is exempted from the medium plate splicing that embodiment using the present invention provides, and reaches efficient, energy-saving and emission-reduction
Effect.First, fundamentally solve that traditional back chipping process is loaded down with trivial details, weld interval is long, technology requires that high, environmental pollution is big
The shortcomings of, so that welding efficiency is improved 3-4 times, while first-time qualification rate is up to 100%；Secondly, basic to solve to be welded with harmful flue dust
The pollution to working environment is discharged, its harmful effect that may be brought to operative employee's health and environment is eliminated, protects weldering
The health of work；Secondly, the occupational disease hazards of carbon arc air gouging arc light, flue dust and noise to welder are avoided；Also, reduce weldering
Engineering practises threshold, reduces welders training expense；Weldquality caused by reducing human factor is bad, preferably ensures welding matter
Amount.
Back chipping welding procedure is exempted from a kind of medium plate splicing that the embodiment of the present invention provides, and eliminates back chipping technique, energy
Enough improve operating environment, reduces noise, it is environmentally friendly and energy saving, be conducive to employee's physical and mental health.
In the optional scheme of the present embodiment, further, the thickness of steel plate 1 is 16mm-50mm.
In at least one embodiment, the thickness of steel plate 1 be 16mm-50mm, such as can with but be not limited only to for 16mm,
20mm, 25mm, 30mm, 40mm or 50mm.
In the optional scheme of the present embodiment, further, 2 angle of groove of steel plate 1 is 25 ° -30 °.
In at least one embodiment, 2 angle [alpha] of groove of steel plate 1 be 25 ° -30 °, such as can with but be not limited only to for
25 °, 26 °, 27 °, 28 °, 29 ° or 30 °.
In the optional scheme of the present embodiment, further, steel plate 1 is arranged 2 one end of groove and stays 4mm-6mm root faces.
In at least one embodiment, 4mm-6mm root faces, such as the length L of root face are stayed in 2 one end of the setting groove of steel plate 11It can
With but be not limited only to as 4mm, 4.5mm, 5mm, 5.5mm or 6mm.
In the optional scheme of the present embodiment, further, the length L of groove 22For 4mm-27mm.
In at least one embodiment, the length L of groove 22For the length L of 4mm-27mm, such as groove 22Can with but not only
It is limited to 4mm, 8mm, 12mm, 16mm, 20mm, 24mm, 26mm or 27mm.
In the optional scheme of the present embodiment, further, using carbon-dioxide arc welding pick by two blocks of steel plates 1 into
Row butt welding in spot.
In at least one embodiment, it is picked the carry out butt welding in spot of two blocks of steel plates 1 using carbon-dioxide arc welding, two
Carbonoxide protects bonding machine referred to as two to protect welding machine.
In the optional scheme of the present embodiment, further, medium plate splicing exempts from back chipping welding procedure and further includes：
Surface inspection and ultrasonic wave UT flaw detections are carried out to welding bead.
In the optional scheme of the present embodiment, further, medium plate splicing exempts from back chipping welding procedure and further includes：
Mechanical property test is carried out to the splice plate of steel plate 1.
The key problem in technology point that the medium plate splicing that the embodiment of the present invention provides is exempted from back chipping welding procedure is：
Using unilateral double V-groove, bevel angle controls at 25 ° -30 °, stays 4mm-6mm root faces, 5 ° -10 ° are stayed according to plate thickness
Reversible deformation, with two guarantor welding machines carry out butt welding in spot, can determine that spot welding position, spot welding thickness control exist according to plate thickness and width
5mm or less, it is ensured that gouge back chipping process is removed in energy penetration spot welding thickness, not bottoming when submerged arc welding from, and direct submerged arc welding ensures
Full penetration inside weld seam.
The embodiment of the present invention specifies the welding penetration of the different-thickness such as 16mm, 20mm, 25mm, 30mm, 40mm, 50mm
Weld seam is tested, and it is qualified that postwelding is detected by 100%UT, and consignment test room materialses and carries out mechanical property test, draws
It stretches, impact, bending property meets the requirements.
Exempt from back chipping welding procedure to the medium plate splicing of the present invention above to be illustrated, still, the present invention does not limit
In above-mentioned specific embodiment various deformations or change can be carried out without departing from the scope of the claims.This
Invent the various modifications being included within the scope of the claims and change.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：It is still
Either which part or all technical features can be carried out so that technical scheme described in the above embodiments is modified
Equivalent replacement；And these modifications or replacements, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (8)
1. back chipping welding procedure is exempted from a kind of medium plate splicing, which is characterized in that including：
Groove preparation is carried out to steel plate, the groove of the steel plate is unilateral double V-groove；
Two blocks of steel plates are stayed according to the steel plate thickness to 5 ° -10 ° of reversible deformation；
By the carry out butt welding in spot of two blocks of steel plates, spot welding thickness control is in 5mm or less；
The carry out submerged arc welding of two blocks of steel plates is ensured that penetration is welded thickness.
2. back chipping welding procedure is exempted from medium plate splicing according to claim 1, which is characterized in that the thickness of the steel plate
For 16mm-50mm.
3. back chipping welding procedure is exempted from medium plate splicing according to claim 1, which is characterized in that the groove of the steel plate
Angle is 25 ° -30 °.
4. back chipping welding procedure is exempted from medium plate splicing according to claim 1, which is characterized in that slope is arranged in the steel plate
Stay 4mm-6mm root faces in mouth one end.
5. back chipping welding procedure is exempted from medium plate according to claim 1 splicing, which is characterized in that the groove length is
4mm-27mm。
6. back chipping welding procedure is exempted from medium plate splicing according to claim 1, which is characterized in that protected using carbon dioxide
Bonding machine is protected by the carry out butt welding in spot of two blocks of steel plates.
7. back chipping welding procedure is exempted from medium plate splicing according to claim 1, which is characterized in that the medium plate is spelled
It connects and exempts from back chipping welding procedure and further include：
Surface inspection and ultrasonic wave UT flaw detections are carried out to welding bead.
8. back chipping welding procedure is exempted from medium plate splicing according to claim 1, which is characterized in that the medium plate is spelled
It connects and exempts from back chipping welding procedure and further include：
Mechanical property test is carried out to the splice plate of the steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810712004.0A CN108788411A (en) | 2018-07-02 | 2018-07-02 | Back chipping welding procedure is exempted from medium plate splicing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810712004.0A CN108788411A (en) | 2018-07-02 | 2018-07-02 | Back chipping welding procedure is exempted from medium plate splicing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108788411A true CN108788411A (en) | 2018-11-13 |
Family
ID=64074086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810712004.0A Pending CN108788411A (en) | 2018-07-02 | 2018-07-02 | Back chipping welding procedure is exempted from medium plate splicing |
Country Status (1)
| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10263881A (en) * | 1997-03-21 | 1998-10-06 | Nippon Steel Weld Prod & Eng Co Ltd | Steel filler for single submerged arc welding groove |
| CN101457627A (en) * | 2009-01-05 | 2009-06-17 | 中国人民解放军广州军区空军工程建设局 | Producing and installing process for heavy duty split sector door |
| CN104907677A (en) * | 2015-06-10 | 2015-09-16 | 华电郑州机械设计研究院有限公司 | Automatic carbon dioxide arc welding process for steel inner cylinder of chimney |
| CN105643050A (en) * | 2016-02-29 | 2016-06-08 | 广船国际有限公司 | Single-side multiple-wire submerged-arc welding method of low-temperature and high-ductility steel |
| CN106392272A (en) * | 2016-11-18 | 2017-02-15 | 江苏双良锅炉有限公司 | Y-shaped groove back-chipping-free submerged-arc welding technology for moderately thick plate in boiler and pressure container |
| CN106425049A (en) * | 2016-12-06 | 2017-02-22 | 武汉天高熔接股份有限公司 | Submerged-arc welding deep penetration single-side welding technology of thick plates |
| CN106825874A (en) * | 2017-03-10 | 2017-06-13 | 广州增立钢管结构股份有限公司 | A kind of submerged-arc welding single face welding and double face shaping technique |
-
2018
- 2018-07-02 CN CN201810712004.0A patent/CN108788411A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10263881A (en) * | 1997-03-21 | 1998-10-06 | Nippon Steel Weld Prod & Eng Co Ltd | Steel filler for single submerged arc welding groove |
| CN101457627A (en) * | 2009-01-05 | 2009-06-17 | 中国人民解放军广州军区空军工程建设局 | Producing and installing process for heavy duty split sector door |
| CN104907677A (en) * | 2015-06-10 | 2015-09-16 | 华电郑州机械设计研究院有限公司 | Automatic carbon dioxide arc welding process for steel inner cylinder of chimney |
| CN105643050A (en) * | 2016-02-29 | 2016-06-08 | 广船国际有限公司 | Single-side multiple-wire submerged-arc welding method of low-temperature and high-ductility steel |
| CN106392272A (en) * | 2016-11-18 | 2017-02-15 | 江苏双良锅炉有限公司 | Y-shaped groove back-chipping-free submerged-arc welding technology for moderately thick plate in boiler and pressure container |
| CN106425049A (en) * | 2016-12-06 | 2017-02-22 | 武汉天高熔接股份有限公司 | Submerged-arc welding deep penetration single-side welding technology of thick plates |
| CN106825874A (en) * | 2017-03-10 | 2017-06-13 | 广州增立钢管结构股份有限公司 | A kind of submerged-arc welding single face welding and double face shaping technique |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |