CN102806415A - Gouging-free welding method and welding platform for welding web plate and flange of H-shaped steel - Google Patents
Gouging-free welding method and welding platform for welding web plate and flange of H-shaped steel Download PDFInfo
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- CN102806415A CN102806415A CN201210299968XA CN201210299968A CN102806415A CN 102806415 A CN102806415 A CN 102806415A CN 201210299968X A CN201210299968X A CN 201210299968XA CN 201210299968 A CN201210299968 A CN 201210299968A CN 102806415 A CN102806415 A CN 102806415A
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Abstract
The invention discloses a gouging-free welding method and a welding platform for welding a web plate and a flange of H-shaped steel and relates to the technical field of welding construction, in particular to the field of construction of T-shaped welding lines. The technical problems that the gouging is required and the welding deformation is large in the process of welding the web plate and the flange when the welded H-shaped steel is manufactured are solved. A welded joint of the web plate is designed into a K-shaped groove, the angle of the groove is designed to be 55 degrees, and the angle of the welding platform is designed to be 55 to 60 degrees. The welding platform is suitable for manufacturing and welding the welded H-shaped steel of which the thickness of the web plate is 16 to 50mm, and the technical problems that reverse gouging is required and large angular deformation is generated between the flange and the web plate in the process of welding the web plate and flange of the H-shaped steel are solved. The welding platform is easy and convenient to operate and easy to popularize, and the manufacturing cost is reduced.
Description
Technical field
The present invention relates to the welding procedure technical field, particularly welded H section steel web and wing plate are exempted from back chipping welding method and jig.
Background technology
According to structure steel fabrication welding GB50205-2001 standard, make welded H section steel T connector weldquality grade and be I and II, require full penetration.When making welding quality grade was the H shaped steel of I and II, traditional handicraft generally adopted single V-butt welding at present, and bevel angle is 45 ~ 50 degree, and the angle of jig is 45 degree, and the V-shaped weld reverse side is taked the welding procedure of carbon arc air gouging back chipping.The shortcoming of this welding procedure is: 1, groove face is substantially parallel with submerged-arc welding wire, and the separated time deviation is bigger in welding wire and the bevel angle, causes the root of weld can not through welding, thus the welding point reverse side need the carbon arc air gouging back chipping after welding just can guarantee through welding.2, the both sides groove behind the back chipping is different; It is inconsistent that metal is filled in the web both sides, causes wing plate and web welding back to produce bigger angular deformation, and this angular deformation can't adopt the shaped steel inspection machine to proofread and correct; Must adopt flame correction; The correction work amount is big, proofreaies and correct the residual bigger internal stress in back, and the oxygen-acetylene consumption is big simultaneously.3, because single V-butt degree of depth is big, the filling metal is many, and material and manpower consumption are big.
Summary of the invention
The object of the present invention is to provide a kind of welded H section steel web and wing plate to exempt from back chipping welding method and jig, solve when welded H section steel is made, need back chipping and the big technical problem of welding deformation in web and the wing plate welding.
The present invention solves the problems of the technologies described above and is achieved in that 1, changes the web slope type into K shape groove; Bevel angle is designed to 55 degree, and the angle of jig is adjusted into 55 ~ 60 degree by 45 original degree, and above-mentioned angular deviation should be greater than 1 degree; The angle of groove face and submerged-arc welding wire is actual at this moment is 20 ~ 25 degree; In this angular range, need not under the situation of back chipping, Lincoln weld can guarantee the through welding of web and wing plate welding point.2, because welding point both sides bevel angle is identical, it is consistent that symmetry, so weld seam both sides is fully filled metal, can between wing plate and web, not produce angular deformation.3, the scope of this new technology covering welded H section steel is wider, and the thickness of web all can adopt in 16 ~ 50 millimeters.
Jig of the present invention comprises base plate, bearing diagonal plate, vertical gripper shoe, main article carrying platform, side article carrying platform.Base plate, vertically gripper shoe and the main article carrying platform three triangle that meets at right angles is fixedly connected layout, wherein floor level placement, and vertical gripper shoe arranges that vertically main article carrying platform is the hypotenuse of right angled triangle.The bearing diagonal plate is arranged between the junction and main article carrying platform of base plate and vertical gripper shoe, and connected mode makes main article carrying platform more firm for being fixedly connected.One side of side article carrying platform is fixedly connected with the junction of base plate and main article carrying platform, and the side article carrying platform arranges vertically that with respect to main article carrying platform the angle of side article carrying platform and base plate is the jig angle beta, and β is 55 ~ 60 degree.
The concrete technical scheme of method of the present invention is: the first step, and processing web groove adopts the automatic cutter of oxy-acetylene that the web groove is processed into the K shape groove that both sides are symmetry, and bevel angle α is 55 degree; In second step, assembling H shaped steel is placed on the H shaped steel that assembles on the jig, and the angle of side article carrying platform and base plate is the jig angle beta, and β is 55 ~ 60 degree; In the 3rd step, adjustment welding technology of automatic submerged-arc welding parameter is welded, and submerged-arc welding wire is vertical state; The angle of groove face and submerged-arc welding wire is actual at this moment is 20 ~ 25 degree; In time carry out standing up of H shaped steel, carry out the symmetry welding in the weld seam both sides, until accomplishing welding.
The invention has the beneficial effects as follows: need back root cleaning when the invention solves the welding of welded H section steel web and wing plate and between wing plate and web, produce the technical problem of bigger angular deformation, compared following advantage and improvement with traditional handicraft.
The first, because the change of grooves of welding joints pattern and jig angle in this angular range, need not under the situation of back chipping, Lincoln weld can guarantee the through welding of web and wing plate welding point.
The second, because welding point both sides bevel angle is identical, it is consistent that symmetry, so weld seam both sides is fully filled metal, can between wing plate and web, not produce angular deformation.
The 3rd, slope type changes K shape groove into by single V-butt, fills amount of metal and reduces.Practice thrift material, reduced manpower consumption, reduced cost of manufacture, shortened the process-cycle.
Description of drawings
Accompanying drawing provides welded H section steel web of the present invention and wing plate is exempted from back chipping welding procedure sketch map.
Fig. 1 is a welded H section steel web groove sketch map of the present invention.
Fig. 2 is a jig angle sketch map of the present invention.
Fig. 3 is welded H section steel of the present invention is carried out Lincoln weld on jig a sketch map.
Among the figure: 1 automatic submerged-arc welding machine; 2 welded H section steel; 3 jigs; 4 base plates; 5 bearing diagonal plates; 6 vertical gripper shoes; 7 main article carrying platforms; 8 side article carrying platforms.
The specific embodiment
The first step is processed the web groove by Fig. 1, adopts the automatic cutter of oxy-acetylene that the web groove is processed into K shape groove, root face 4 ~ 5mm, bevel angle 55 degree.
Second step was assembled H shaped steel, and the H shaped steel that assembles is placed on the jig by Fig. 2 design, and the jig angle beta is 55 ~ 60 degree, and the angle of groove face and submerged-arc welding wire is actual at this moment is 20 ~ 25 degree;
The 3rd step is put in order the welding technology of automatic submerged-arc welding parameter, selects satisfactory welding condition to weld, and standing up of H shaped steel in time carried out in the requirement that connects according to multi-pass welding in the welding process, carries out the symmetry welding in the weld seam both sides, until accomplishing welding.
Claims (3)
1. welded H section steel web and wing plate are exempted from the back chipping welding method, it is characterized in that concrete steps are: the first step, and processing web groove adopts the automatic cutter of oxy-acetylene that the web groove is processed into the K shape groove that both sides are symmetry, and bevel angle α is 55 degree; In second step, assembling H shaped steel is placed on the H shaped steel that assembles on the jig, and side article carrying platform (8) is the jig angle beta with the angle of base plate (4), and β is 55 ~ 60 degree; In the 3rd step, adjustment welding technology of automatic submerged-arc welding parameter is welded, and submerged-arc welding wire is vertical state; The angle of groove face and submerged-arc welding wire is actual at this moment is 20 ~ 25 degree; In time carry out standing up of H shaped steel, carry out the symmetry welding in the weld seam both sides, until accomplishing welding.
2. implement the jig that the described welded H section steel web of claim 1 and wing plate are exempted from the back chipping welding method for one kind, it is characterized in that, comprise base plate (4), vertically gripper shoe (6), main article carrying platform (7), side article carrying platform (8); Base plate (4), vertically gripper shoe (6) and main article carrying platform (7) the three triangle that meets at right angles is fixedly connected layouts, base plate (4) horizontal positioned wherein, and the vertical layout of vertical gripper shoe (6), main article carrying platform (7) is the hypotenuse of right angled triangle; One side of side article carrying platform (8) is fixedly connected with the junction of base plate (4) with main article carrying platform (7), and side article carrying platform (8) is with respect to the vertical layout of main article carrying platform (7),, β is 55 ~ 60 degree.
3. welded H section steel web according to claim 2 and wing plate are exempted from the back chipping jig; It is characterized in that; Also comprise bearing diagonal plate (5); Said bearing diagonal plate (5) is arranged between the junction and main article carrying platform (7) of base plate (4) and vertical gripper shoe (6), and connected mode is for being fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210299968XA CN102806415A (en) | 2012-08-22 | 2012-08-22 | Gouging-free welding method and welding platform for welding web plate and flange of H-shaped steel |
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| CN201210299968XA CN102806415A (en) | 2012-08-22 | 2012-08-22 | Gouging-free welding method and welding platform for welding web plate and flange of H-shaped steel |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088753A (en) * | 2013-03-01 | 2013-05-08 | 天津市市政工程设计研究院 | Bracing construction and method at steel bridge deck slab web plate position |
| CN103203579A (en) * | 2013-04-26 | 2013-07-17 | 四川华通特种工程塑料研究中心有限公司 | U-shaped steel welding device |
| CN103302436A (en) * | 2013-06-13 | 2013-09-18 | 无锡国电华新起重运输设备有限公司 | Clamp for unidirectionally positioning web |
| CN103586610A (en) * | 2013-10-31 | 2014-02-19 | 惠生（南通）重工有限公司 | Tool for automatic welding of PG beam |
| CN103785934A (en) * | 2014-03-03 | 2014-05-14 | 山东电力建设第二工程公司 | Thin-plate H-type steel and main angular welding joint full penetration welding method in full penetration welding process |
| CN104259634A (en) * | 2014-07-29 | 2015-01-07 | 中国有色金属工业第六冶金建设有限公司 | Full penetration fillet weld back-gouging-free welding technology |
| CN104526135A (en) * | 2014-11-20 | 2015-04-22 | 上海沪临重工有限公司 | Non-back gouging submerged-arc welding method of H-shaped steel |
| CN104625357A (en) * | 2013-11-15 | 2015-05-20 | 上海中远川崎重工钢结构有限公司 | H-steel or T-steel full-penetration back-gouging-free welding method |
| CN105834561A (en) * | 2016-06-06 | 2016-08-10 | 中建钢构有限公司 | Method for back-chipping-free full penetration weld of H-shaped steel |
| CN106493459A (en) * | 2016-12-27 | 2017-03-15 | 湖北鑫索建设有限公司 | A kind of semi-automatic linerless penetration welding procedure of steel box column |
| CN107538112A (en) * | 2016-12-09 | 2018-01-05 | 湖南金海钢结构股份有限公司 | A kind of H profile steel thickness web welding method |
| CN108746943A (en) * | 2018-06-06 | 2018-11-06 | 湖北天图桥梁技术研究有限公司 | H profile steel beam manufacturing method |
| CN109382597A (en) * | 2018-10-19 | 2019-02-26 | 南京中船绿洲机器有限公司 | A kind of test piece for welding tooling |
| CN110666312A (en) * | 2019-10-22 | 2020-01-10 | 中国一冶集团有限公司 | Full penetration back-gouging-free welding process for H-shaped steel |
| CN114054910A (en) * | 2021-11-26 | 2022-02-18 | 中冶建工集团有限公司 | Welding method suitable for small-sized special-shaped H-shaped steel |
| CN114309903A (en) * | 2022-03-07 | 2022-04-12 | 中铁长安重工有限公司 | Welding positioning device and method for I-shaped beam without back chipping |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088753A (en) * | 2013-03-01 | 2013-05-08 | 天津市市政工程设计研究院 | Bracing construction and method at steel bridge deck slab web plate position |
| CN103203579A (en) * | 2013-04-26 | 2013-07-17 | 四川华通特种工程塑料研究中心有限公司 | U-shaped steel welding device |
| CN103302436A (en) * | 2013-06-13 | 2013-09-18 | 无锡国电华新起重运输设备有限公司 | Clamp for unidirectionally positioning web |
| CN103586610A (en) * | 2013-10-31 | 2014-02-19 | 惠生（南通）重工有限公司 | Tool for automatic welding of PG beam |
| CN104625357A (en) * | 2013-11-15 | 2015-05-20 | 上海中远川崎重工钢结构有限公司 | H-steel or T-steel full-penetration back-gouging-free welding method |
| CN103785934A (en) * | 2014-03-03 | 2014-05-14 | 山东电力建设第二工程公司 | Thin-plate H-type steel and main angular welding joint full penetration welding method in full penetration welding process |
| CN104259634A (en) * | 2014-07-29 | 2015-01-07 | 中国有色金属工业第六冶金建设有限公司 | Full penetration fillet weld back-gouging-free welding technology |
| CN104526135A (en) * | 2014-11-20 | 2015-04-22 | 上海沪临重工有限公司 | Non-back gouging submerged-arc welding method of H-shaped steel |
| CN105834561A (en) * | 2016-06-06 | 2016-08-10 | 中建钢构有限公司 | Method for back-chipping-free full penetration weld of H-shaped steel |
| CN107538112A (en) * | 2016-12-09 | 2018-01-05 | 湖南金海钢结构股份有限公司 | A kind of H profile steel thickness web welding method |
| CN106493459A (en) * | 2016-12-27 | 2017-03-15 | 湖北鑫索建设有限公司 | A kind of semi-automatic linerless penetration welding procedure of steel box column |
| CN108746943A (en) * | 2018-06-06 | 2018-11-06 | 湖北天图桥梁技术研究有限公司 | H profile steel beam manufacturing method |
| CN108746943B (en) * | 2018-06-06 | 2020-06-30 | 湖北天图桥梁技术研究有限公司 | Manufacturing method of H-shaped steel beam |
| CN109382597A (en) * | 2018-10-19 | 2019-02-26 | 南京中船绿洲机器有限公司 | A kind of test piece for welding tooling |
| CN110666312A (en) * | 2019-10-22 | 2020-01-10 | 中国一冶集团有限公司 | Full penetration back-gouging-free welding process for H-shaped steel |
| CN114054910A (en) * | 2021-11-26 | 2022-02-18 | 中冶建工集团有限公司 | Welding method suitable for small-sized special-shaped H-shaped steel |
| CN114309903A (en) * | 2022-03-07 | 2022-04-12 | 中铁长安重工有限公司 | Welding positioning device and method for I-shaped beam without back chipping |
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Application publication date: 20121205 |