CN108714731A - A kind of unclear method for root of submerged-arc welding cut deal - Google Patents
A kind of unclear method for root of submerged-arc welding cut deal Download PDFInfo
- Publication number
- CN108714731A CN108714731A CN201810527653.3A CN201810527653A CN108714731A CN 108714731 A CN108714731 A CN 108714731A CN 201810527653 A CN201810527653 A CN 201810527653A CN 108714731 A CN108714731 A CN 108714731A
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- China
- Prior art keywords
- welding
- groove
- cut deal
- root
- submerged
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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
- B23K9/095—Monitoring or automatic control of welding parameters
Abstract
The plate thickness of a kind of unclear method for root of submerged-arc welding cut deal, the cut deal is 8-25mm, X-type welding groove is arranged on cut deal, the unclear method for root is：The front groove for first welding X-type welding groove, to form weld seam of the full, reinforcement between 0-2mm；Then the backing groove for welding X-type welding groove again, to form weld seam of the full, reinforcement between 0-2mm；Welding uses a diameter of 5mm 4mm welding wires, and the adjusting range of welding current is 400-800A, and the adjusting range of weldingvoltage is 20-45V, and the adjusting range of speed of welding is 200mm/min-700mm/min；It can realize black material submerged arc welding, and production efficiency is improved while ensureing welding quality；With the features such as easy to operate, work efficiency is high and working environment is good.
Description
Technical field
The present invention relates to a kind of unclear method for root of submerged-arc welding cut deal, especially a kind of carbon steel material or stainless steel material are empty
Partial pressure shell vertical masonry joint, circular seam submerged arc welding welding method belong to Large Air Separation Devices manufacture welding technology field.
Background technology
The cylinder material of space division pressure vessel is divided into coloured material and black material, and wherein black material is broadly divided into carbon steel and not
Rust steel two major classes, since space division Inspection of Pressure Vessel requires height, weld seam to need 100% nondestructive testing, do not allow stomata occur, split
The defects of line, slag inclusion, so reverse side needs after carbon arc air gouging back chipping process removes latent defect after weld seam front is welded
It can be welded.
Existing submerged arc welding mode is required for carrying out carbon arc air gouging process carrying out back chipping, in carbon arc air gouging process
Also there is the damage in terms of occupational health to employee, metallic dust etc. has human body after the easy sucking carbon dust of employee in operation
Harmful substance, although infringement of the harmful substance to employee can not be avoided with mask but completely.In addition, the work of carbon arc air gouging
It measures very greatly, the great work intensity of employee, elapsed time is also more, and the time of one weld seam of carbon arc air gouging is equivalent to welding one
The time of weld seam.
Invention content
It is an object of the invention to overcome the shortcomings of the prior art, and offer is a kind of easy to operate, and work efficiency is high and work
Make the good unclear method for root of submerged-arc welding cut deal of environment.
The purpose of the present invention is by following technical solution to complete, a kind of unclear method for root of submerged-arc welding cut deal, institute
The plate thickness for stating cut deal is 8-25mm, X-type welding groove is arranged on cut deal, the unclear method for root is：First weld X-type
The front groove of welding groove, to form weld seam of the full, reinforcement between 0-2mm；Then the anti-of X-type welding groove is welded again
Face groove, to form weld seam of the full, reinforcement between 0-2mm；Welding uses a diameter of 5mm 4mm welding wires, welding electricity
The adjusting range of stream is 400-800A, and the adjusting range of weldingvoltage is 20-45V, and the adjusting range of speed of welding is 200mm/
min-700mm/min。
As preferred：The X-type welding groove is 90 degree of 60 degree of front 8mm grooves, 5mm root faces, reverse side 5mm of cut deal
Groove；Front groove is first welded, is welded using 690-730A welding currents, 29-35V weldingvoltages, 550-650mm/min speeds of welding
It connects；Reverse side is welded using 730-780A welding currents, 31-35V weldingvoltages, 550-650mm/min speeds of welding；It is described
The plank material of cut deal is all carbon steel sheets or stainless steel plate.
The present invention is mainly to consider from the weldering production efficiency and enterprise employee health etc. for improving black material, develops one kind
Back chipping technique does not improve production to submerged-arc welding cut deal to realize black material submerged arc welding while ensureing welding quality
Efficiency；It has the features such as easy to operate, work efficiency is high and working environment is good.
Description of the drawings
Fig. 1 is the weld groove schematic diagram of the unclear method for root of submerged-arc welding cut deal of the present invention.
Specific implementation mode
The present invention will be described in detail below in conjunction with the accompanying drawings：Shown in Fig. 1, a kind of submerged-arc welding cut deal of the present invention
The plate thickness of unclear method for root, the cut deal is 8-25mm, and X-type welding groove, the not back chipping is arranged on cut deal
Method is：The front groove for first welding X-type welding groove, to form weld seam of the full, reinforcement between 0-2mm；Then X is welded again
The backing groove of type welding groove, to form weld seam of the full, reinforcement between 0-2mm；Welding using a diameter of 5mm or
The adjusting range of 4mm welding wires, welding current is 400-800A, and the adjusting range of weldingvoltage is 20-45V, the tune of speed of welding
Whole ranging from 200mm/min-700mm/min.
Embodiment as one preferred, X-type welding groove of the present invention be cut deal 60 degree of front 8mm grooves,
90 degree of 5mm root faces, reverse side 5mm grooves；Front groove is first welded, using 690-730A welding currents, 29-35V weldingvoltages, 550-
650mm/min speeds of welding are welded；Reverse side is using 730-780A welding currents, 31-35V weldingvoltages, 550-650mm/min welderings
Speed is connect to be welded；The plank material of the cut deal is all carbon steel sheets or stainless steel plate.
Welding procedure of the present invention does not have the process of carbon arc air gouging, substantially reduces labor intensity, improves employee work
Environment significantly improves working efficiency.
Embodiment：The present invention primarily directed to the ferrous metal such as carbon steel, stainless steel submerged-arc welding new welding process, wherein
Including welding groove, welding parameter, mode of operation.Gage of wire used in this new process is 5mm 4mm welding wires, weldering
Silk copper facing or not copper facing all may be used.Plate thickness can cover 8mm-25mm, and plank material is carbon steel or stainless steel；Thickness may be implemented
Back chipping reverse side does not weld coating directly after plank submerged-arc welding backing welding in degree range；Weld Performance pass through RT non-destructive testings, 99%
The above I grades of piece qualification rate, mechanical property satisfaction can mark NB/T47014 procedure qualification mechanical property requirements.Ensureing welding quality
While improve production efficiency.
Welding groove of the present invention is an X-type groove, such as 18mmQ345R planks：Positive 60 degree of 8mm grooves,
90 degree of 5mm root faces, reverse side 5mm grooves；The groove is conducive to weld metal and is permeated in groove, and will not hinder gas in weld seam
Body overflows, and avoids the generation of weld defect.Welding parameter includes welding current, weldingvoltage, speed of welding.According to what is welded
Plate thickness, the difference of material need the size for adjusting welding parameter, therefore the adjusting range of welding current is 400-800A, weldering
The adjusting range for connecing voltage is 20-45V, and the adjusting range of speed of welding is 200mm/min-700mm/min.Ensureing to weld matter
Production efficiency is improved while amount, while providing better working environment for employee.
Claims (2)
1. the plate thickness of a kind of unclear method for root of submerged-arc welding cut deal, the cut deal is 8-25mm, X-type is set on cut deal
Welding groove, it is characterized in that the unclear method for root is：The front groove of X-type welding groove is first welded, it is full to be formed
, the weld seam that reinforcement is between 0-2mm；Then the backing groove for welding X-type welding groove again, to form full, reinforcement in 0-
Weld seam between 2mm；Welding uses a diameter of 5mm 4mm welding wires, and the adjusting range of welding current is 400-800A, welding
The adjusting range of voltage is 20-45V, and the adjusting range of speed of welding is 200mm/min-700mm/min.
2. the unclear method for root of submerged-arc welding cut deal according to claim 1, it is characterised in that during the X-type welding groove is
90 degree of 60 degree of front 8mm grooves, 5mm root faces, reverse side 5mm grooves of slab；Front groove is first welded, electricity is welded using 690-730A
Stream, the welding of 29-35V weldingvoltages, 550-650mm/min speeds of welding；Reverse side is welded using 730-780A welding currents, 31-35V
Connect voltage, 550-650mm/min speeds of welding are welded；The plank material of the cut deal is all carbon steel sheets or stainless steel
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527653.3A CN108714731A (en) | 2018-05-29 | 2018-05-29 | A kind of unclear method for root of submerged-arc welding cut deal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527653.3A CN108714731A (en) | 2018-05-29 | 2018-05-29 | A kind of unclear method for root of submerged-arc welding cut deal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108714731A true CN108714731A (en) | 2018-10-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810527653.3A Pending CN108714731A (en) | 2018-05-29 | 2018-05-29 | A kind of unclear method for root of submerged-arc welding cut deal |
Country Status (1)
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| CN (1) | CN108714731A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355443A (en) * | 2020-10-14 | 2021-02-12 | 中国核工业第二二建设有限公司 | Nuclear power stainless steel back chipping-free submerged arc automatic welding process |
| CN112575623A (en) * | 2019-09-27 | 2021-03-30 | 比亚迪股份有限公司 | Butt welding plate group, turnout beam and processing method of butt welding plate group |
| CN113579432A (en) * | 2021-08-30 | 2021-11-02 | 广船国际有限公司 | Medium plate double-sided single-pass non-back-gouging submerged arc welding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60187476A (en) * | 1984-03-06 | 1985-09-24 | Nippon Steel Corp | Narrow gap submerged arc welding method |
| CN102000901A (en) * | 2010-12-09 | 2011-04-06 | 湖南华菱湘潭钢铁有限公司 | Welding technology of submerged-arc welding of X-shaped groove of medium plate |
| CN104191097A (en) * | 2014-08-27 | 2014-12-10 | 成都天保重型装备股份有限公司 | Back-chipping-free welding process for X-type grooves of plates of moderate thickness |
| CN104493342A (en) * | 2014-10-29 | 2015-04-08 | 瑞冬集团有限公司 | Medium thickness plate X-shaped bevel welding technology without back chipping |
| CN105195872A (en) * | 2015-10-26 | 2015-12-30 | 南京奥特电气股份有限公司 | Double-sided submerged arc back-chipping-free welding technology for pipeline steel |
-
2018
- 2018-05-29 CN CN201810527653.3A patent/CN108714731A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60187476A (en) * | 1984-03-06 | 1985-09-24 | Nippon Steel Corp | Narrow gap submerged arc welding method |
| CN102000901A (en) * | 2010-12-09 | 2011-04-06 | 湖南华菱湘潭钢铁有限公司 | Welding technology of submerged-arc welding of X-shaped groove of medium plate |
| CN104191097A (en) * | 2014-08-27 | 2014-12-10 | 成都天保重型装备股份有限公司 | Back-chipping-free welding process for X-type grooves of plates of moderate thickness |
| CN104493342A (en) * | 2014-10-29 | 2015-04-08 | 瑞冬集团有限公司 | Medium thickness plate X-shaped bevel welding technology without back chipping |
| CN105195872A (en) * | 2015-10-26 | 2015-12-30 | 南京奥特电气股份有限公司 | Double-sided submerged arc back-chipping-free welding technology for pipeline steel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112575623A (en) * | 2019-09-27 | 2021-03-30 | 比亚迪股份有限公司 | Butt welding plate group, turnout beam and processing method of butt welding plate group |
| CN112355443A (en) * | 2020-10-14 | 2021-02-12 | 中国核工业第二二建设有限公司 | Nuclear power stainless steel back chipping-free submerged arc automatic welding process |
| CN113579432A (en) * | 2021-08-30 | 2021-11-02 | 广船国际有限公司 | Medium plate double-sided single-pass non-back-gouging submerged arc welding method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181030 |
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| RJ01 | Rejection of invention patent application after publication |