CN105710489A - Welding process for steel structure - Google Patents
Welding process for steel structure Download PDFInfo
- Publication number
- CN105710489A CN105710489A CN201410723789.3A CN201410723789A CN105710489A CN 105710489 A CN105710489 A CN 105710489A CN 201410723789 A CN201410723789 A CN 201410723789A CN 105710489 A CN105710489 A CN 105710489A
- Authority
- CN
- China
- Prior art keywords
- welding
- arc
- welding rod
- rod
- weldment
- 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.)
- Pending
Links
Abstract
The invention discloses a welding process for a steel structure. The welding process for the steel structure is characterized in that the welding process comprises the following requirements that 1, materials are prepared; and 2, the operation process is conducted, specifically, (1) flat welding is conducted; (2) a welding seam is cleaned, specifically, whether a beveled edge and an assembly clearance meet the requirements or not is checked before welding, whether positioned welding is firm or not is checked, and the periphery of the welding seam should not have oil stains and rusty materials; (3) baking of a welding rod should meet the specified temperature and time, and the welding rod taken out of an oven is placed in a welding rod heat preservation barrel and is taken as needed; (4) a welding current is selected, specifically, the appropriate welding current is selected according to the weldment thickness, the welding layers, the welding rod model and diameter, the welder proficiency and other factors; (5) arc striking is conducted; (6) the welding speed is required to be constant-speed welding, the effect that the thickness and the width of the welding seam are uniform and consistent is ensured, and the appropriate distance between molten iron and molten slag in a molten pool should be equal when looked from the interior of a mask; and the length of a welding electric arc is determined according to different models of the welding rod, the electric arc length is generally required to be stable and invariant, the length of an acid welding rod is generally 3-4 mm, and the length of an alkaline welding rod is generally and appropriately 2-3 mm; (7) angle welding is conducted; (8) arc suppression is conducted; and (9) slag removing is conducted, specifically, after the whole welding seam is welded, the molten slag is removed, and after the situation that no problem exists is checked and confirmed by a welder, welding can be continued in a transferred site.
Description
Technical field
The present invention relates to a kind of welding for steel structure technique.
Background technology
Current welding for steel structure technics comparing is complicated, also without unified specification, it does not have unified standard, the steel construction quality causing production is uneven, a lot of operations that repeat also make under production efficiency, increase the work burden of workman, make the competitiveness of product in market not high simultaneously.For some operators just entered a profession, it does not have a clear and definite method technique, cause, when operation, mistakes and omissions often occur, in some instances it may even be possible to cause serious consequence.
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved is to provide a kind of welding for steel structure technique, and this welding procedure is simple, it is possible to welding for steel structure is consolidated, attractive in appearance.
For achieving the above object, the invention provides a kind of welding for steel structure technique, it is characterised in that include following requirement: 1) material preparation: steel, run-on tab, welding rod, during design no standard, welding Q235 steel appropriate to the occasion selection E43 series carbon steel structure welding rod；Welding 16Mn steel appropriate to the occasion selection E50 series low-alloy structural steel electrode, the requirement of by specification puts into heat-preserving container, ready access upon use after bakeing；
2) operating procedure: (1) downhand welding: select suitable welding procedure, core diameter, welding current, speed of welding, welding arc length etc., verified by welding procedure test；
(2) cleaning weld bond: check whether groove, assembly clearance meet the requirements before weldering, whether tack welding is firm, must not have greasy dirt, rust thing around weld seam；
(3) bakee welding rod and should meet the temperature and time of regulation, the welding rod taken out from baking oven, it is placed in thermal insulation barrel for welding rods, ready access upon use；
(4) welding current: according to factors such as weldment thickness, welding level, welding rod model, diameter, welder proficiency levels, select suitable welding current；
(5) striking: angle welding acnode of rising and falling at end of welding bead, should be preferably greater than 10mm, should at will not beat arc, should be pulled open from weld metal zone by welding rod immediately after sparking striking, makes to keep 2～4mm gap to produce electric arc between welding rod and component.Butt weld and corner connection composite welds, run-on tab and end tab is set at weld seam two ends, weld metal zone must be soldered to after striking again on run-on tab, midway joint then should in the sparking striking of 15～20mm place, welding line joint front, after being preheated by weldment, welding rod is returned to weld seam section start again, after molten bath being filled up to the thickness of requirement, can welding forward；
(6) speed of welding: require that constant speed is welded, it is ensured that throat depth, even width are consistent, sees that in face shield molten bath, molten iron keeps equidistant being advisable with slag；
Welding arc length: determining according to welding rod model difference, generally requiring that arc-length stabilization is constant, acidic electrode is generally 3～4mm, and basic electrode is generally 2～3mm and is advisable；
(7) soldering angle: determine according to the thickness of two weldments, soldering angle has two ten thousand, and one be welding rod is 60～75 ° with the angle welding direction of advance；Two is that welding rod has two kinds of situations with welding left and right angle, and when weldment thickness is equal, welding rod and weldment angle are 45 °；When weldment thickness does not wait, welding rod and thicker weldment side angle should be greater than welding rod and relatively thin weldment side angle；
(8) receive arc: every weld seam is soldered to end, after should being filled up by arc crater, toward welding direction opposite direction band arc, make arc crater get rid of inside welding bead, in case arc crater stings meat.Welding complete, should adopt gas cutting excision arc plate, and reconditioning is smooth, hammering not allowable falls；
(9) scarfing cinder: whole piece weld seam removes slag after being soldered, after the true no problem of welder's self-inspection, can continue welding by transfer location.
The invention has the beneficial effects as follows: the technical problem to be solved is to provide a kind of welding for steel structure technique, and this welding procedure is simple, it is possible to welding for steel structure is consolidated, attractive in appearance.
Detailed description of the invention
Technical scheme disclosed by the invention is a kind of welding for steel structure technique, it is characterised in that include following requirement: 1) material preparation: steel, run-on tab, welding rod, during design no standard, welding Q235 steel appropriate to the occasion selection E43 series carbon steel structure welding rod；Welding 16Mn steel appropriate to the occasion selection E50 series low-alloy structural steel electrode, the requirement of by specification puts into heat-preserving container, ready access upon use after bakeing；
2) operating procedure: (1) downhand welding: select suitable welding procedure, core diameter, welding current, speed of welding, welding arc length etc., verified by welding procedure test；
(2) cleaning weld bond: check whether groove, assembly clearance meet the requirements before weldering, whether tack welding is firm, must not have greasy dirt, rust thing around weld seam；
(3) bakee welding rod and should meet the temperature and time of regulation, the welding rod taken out from baking oven, it is placed in thermal insulation barrel for welding rods, ready access upon use；
(4) welding current: according to factors such as weldment thickness, welding level, welding rod model, diameter, welder proficiency levels, select suitable welding current；
(5) striking: angle welding acnode of rising and falling at end of welding bead, should be preferably greater than 10mm, should at will not beat arc, should be pulled open from weld metal zone by welding rod immediately after sparking striking, makes to keep 2～4mm gap to produce electric arc between welding rod and component.Butt weld and corner connection composite welds, run-on tab and end tab is set at weld seam two ends, weld metal zone must be soldered to after striking again on run-on tab, midway joint then should in the sparking striking of 15～20mm place, welding line joint front, after being preheated by weldment, welding rod is returned to weld seam section start again, after molten bath being filled up to the thickness of requirement, can welding forward；
(6) speed of welding: require that constant speed is welded, it is ensured that throat depth, even width are consistent, sees that in face shield molten bath, molten iron keeps equidistant being advisable with slag；
Welding arc length: determining according to welding rod model difference, generally requiring that arc-length stabilization is constant, acidic electrode is generally 3～4mm, and basic electrode is generally 2～3mm and is advisable；
(7) soldering angle: determine according to the thickness of two weldments, soldering angle has two ten thousand, and one be welding rod is 60～75 ° with the angle welding direction of advance；Two is that welding rod has two kinds of situations with welding left and right angle, and when weldment thickness is equal, welding rod and weldment angle are 45 °；When weldment thickness does not wait, welding rod and thicker weldment side angle should be greater than welding rod and relatively thin weldment side angle；
(8) receive arc: every weld seam is soldered to end, after should being filled up by arc crater, toward welding direction opposite direction band arc, make arc crater get rid of inside welding bead, in case arc crater stings meat.Welding complete, should adopt gas cutting excision arc plate, and reconditioning is smooth, hammering not allowable falls；
(9) scarfing cinder: whole piece weld seam removes slag after being soldered, after the true no problem of welder's self-inspection, can continue welding by transfer location.
This welding procedure is simple, it is possible to welding for steel structure is consolidated, attractive in appearance.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.Therefore, all technical staff in the art, all should in the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (1)
1. a welding for steel structure technique, it is characterised in that include following requirement: 1) material preparation: steel, run-on tab, welding rod, during design no standard, welding Q235 steel appropriate to the occasion selection E43 series carbon steel structure welding rod；Welding 16Mn steel appropriate to the occasion selection E50 series low-alloy structural steel electrode, the requirement of by specification puts into heat-preserving container, ready access upon use after bakeing；2) operating procedure: (1) downhand welding: select suitable welding procedure, core diameter, welding current, speed of welding, welding arc length etc., verified by welding procedure test；(2) cleaning weld bond: check whether groove, assembly clearance meet the requirements before weldering, whether tack welding is firm, must not have greasy dirt, rust thing around weld seam；(3) bakee welding rod and should meet the temperature and time of regulation, the welding rod taken out from baking oven, it is placed in thermal insulation barrel for welding rods, ready access upon use；
(4) welding current: according to factors such as weldment thickness, welding level, welding rod model, diameter, welder proficiency levels, select suitable welding current；(5) striking: angle welding acnode of rising and falling at end of welding bead, should be preferably greater than 10mm, should at will not beat arc, should be pulled open from weld metal zone by welding rod immediately after sparking striking, makes to keep 2～4mm gap to produce electric arc between welding rod and component;
Butt weld and corner connection composite welds, run-on tab and end tab is set at weld seam two ends, weld metal zone must be soldered to after striking again on run-on tab, midway joint then should in the sparking striking of 15～20mm place, welding line joint front, after being preheated by weldment, welding rod is returned to weld seam section start again, after molten bath being filled up to the thickness of requirement, can welding forward；(6) speed of welding: require that constant speed is welded, it is ensured that throat depth, even width are consistent, sees that in face shield molten bath, molten iron keeps equidistant being advisable with slag；Welding arc length: determining according to welding rod model difference, generally requiring that arc-length stabilization is constant, acidic electrode is generally 3～4mm, and basic electrode is generally 2～3mm and is advisable；(7) soldering angle: determine according to the thickness of two weldments, soldering angle has two ten thousand, and one be welding rod is 60～75 ° with the angle welding direction of advance；Two is that welding rod has two kinds of situations with welding left and right angle, and when weldment thickness is equal, welding rod and weldment angle are 45 °；When weldment thickness does not wait, welding rod and thicker weldment side angle should be greater than welding rod and relatively thin weldment side angle；(8) receive arc: every weld seam is soldered to end, after should being filled up by arc crater, toward welding direction opposite direction band arc, make arc crater get rid of inside welding bead, in case arc crater stings meat;
Welding complete, should adopt gas cutting excision arc plate, and reconditioning is smooth, hammering not allowable falls；(9) scarfing cinder: whole piece weld seam removes slag after being soldered, after the true no problem of welder's self-inspection, can continue welding by transfer location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723789.3A CN105710489A (en) | 2014-12-04 | 2014-12-04 | Welding process for steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723789.3A CN105710489A (en) | 2014-12-04 | 2014-12-04 | Welding process for steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105710489A true CN105710489A (en) | 2016-06-29 |
Family
ID=56146730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410723789.3A Pending CN105710489A (en) | 2014-12-04 | 2014-12-04 | Welding process for steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105710489A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041254A (en) * | 2016-07-09 | 2016-10-26 | 滁州市恒信工贸有限公司 | Manual welding technology for automobile oil tank truck |
| CN106991517A (en) * | 2017-02-08 | 2017-07-28 | 浙江工业大学 | A kind of welding material use quantity computational methods |
| CN107755854A (en) * | 2017-10-20 | 2018-03-06 | 青岛科华钢结构有限公司 | A kind of Aseismic Steel Structures welding procedure |
| CN108500419A (en) * | 2017-12-07 | 2018-09-07 | 浙江星卓换热设备有限公司 | A kind of welding procedure of backing plate and cylinder fillet welding |
| CN109759670A (en) * | 2018-11-16 | 2019-05-17 | 河北工程大学 | A kind of welding method of steel reinforced concrete skeleton |
| CN110039159A (en) * | 2019-04-23 | 2019-07-23 | 上海外高桥造船有限公司 | The welding method of steel plate |
| CN110835966A (en) * | 2019-11-29 | 2020-02-25 | 上海宝冶集团有限公司 | Construction method for mounting corrugated wall |
| CN111716078A (en) * | 2019-03-22 | 2020-09-29 | 上海梅山钢铁股份有限公司 | Plasma welding method for straight seam of thin-wall cylindrical steel shell |
-
2014
- 2014-12-04 CN CN201410723789.3A patent/CN105710489A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041254A (en) * | 2016-07-09 | 2016-10-26 | 滁州市恒信工贸有限公司 | Manual welding technology for automobile oil tank truck |
| CN106991517A (en) * | 2017-02-08 | 2017-07-28 | 浙江工业大学 | A kind of welding material use quantity computational methods |
| CN106991517B (en) * | 2017-02-08 | 2020-01-31 | 浙江工业大学 | welding material consumption calculation method |
| CN107755854A (en) * | 2017-10-20 | 2018-03-06 | 青岛科华钢结构有限公司 | A kind of Aseismic Steel Structures welding procedure |
| CN108500419A (en) * | 2017-12-07 | 2018-09-07 | 浙江星卓换热设备有限公司 | A kind of welding procedure of backing plate and cylinder fillet welding |
| CN109759670A (en) * | 2018-11-16 | 2019-05-17 | 河北工程大学 | A kind of welding method of steel reinforced concrete skeleton |
| CN111716078A (en) * | 2019-03-22 | 2020-09-29 | 上海梅山钢铁股份有限公司 | Plasma welding method for straight seam of thin-wall cylindrical steel shell |
| CN110039159A (en) * | 2019-04-23 | 2019-07-23 | 上海外高桥造船有限公司 | The welding method of steel plate |
| CN110835966A (en) * | 2019-11-29 | 2020-02-25 | 上海宝冶集团有限公司 | Construction method for mounting corrugated wall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105710489A (en) | Welding process for steel structure | |
| US8546720B2 (en) | Hybrid welding apparatus and system and method of welding | |
| US20130228555A1 (en) | Synchronized hybrid gas metal arc welding with tig/plasma welding | |
| EP2698223B1 (en) | A process of welding to repair thick sections using two arc welding devices and a laser device | |
| CN110899904B (en) | All-position welding method for small-caliber pipe | |
| CN109982802B (en) | Back chipping-free full penetration welding method and welding joint | |
| CN104874919A (en) | Thick plate and narrow gap laser welding method | |
| CN107755859A (en) | A kind of method that can improve steel groove welding quality | |
| Das et al. | Regulated metal deposition (RMD™) technique for welding applications: an advanced gas metal arc welding process | |
| CN109641306B (en) | Vertical narrow groove gas shielded arc welding method | |
| CN107570874A (en) | Laser-arc hybrid welding process | |
| CN105983761A (en) | High-strength steel welding process | |
| JP6382593B2 (en) | Welding method | |
| CN104588848A (en) | Consumable electrode mixed gas shielded arc welding process for steel plate with thickness being 5 mm | |
| JP6119948B1 (en) | Vertical narrow groove gas shielded arc welding method | |
| CN105750688A (en) | Steel structure welding technology | |
| CN105710488A (en) | Welding process | |
| JP2016107305A5 (en) | ||
| JP2016193444A (en) | Multi-electrode one surface single layer submerged arc welding method | |
| CN104588851A (en) | Consumable electrode mixed gas shielded arc welding process for steel plate with thickness below 3 mm | |
| CN107160005A (en) | Pulse blow-out method heats the welding procedure of ultra-thin aluminum casting | |
| RU2688350C1 (en) | Method of hybrid laser-arc welding with steel clad pipes deposition | |
| JP6787800B2 (en) | Single-sided submerged arc welding method | |
| JP6607677B2 (en) | Four-electrode single-sided single-layer submerged arc welding method | |
| CN203992771U (en) | For the arc stud welding guiding mechanism of mistake proofing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160629 |
|
| WD01 | Invention patent application deemed withdrawn after publication |