CN113399788A - Novel penetration welding construction process for steel structural member - Google Patents
Novel penetration welding construction process for steel structural member Download PDFInfo
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- CN113399788A CN113399788A CN202110756437.8A CN202110756437A CN113399788A CN 113399788 A CN113399788 A CN 113399788A CN 202110756437 A CN202110756437 A CN 202110756437A CN 113399788 A CN113399788 A CN 113399788A
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- web plate
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- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
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- 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
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/287—Supporting devices for electrode holders
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- 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
- B23K9/32—Accessories
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a novel penetration welding construction process for a structural member, which belongs to the technical field of steel structure welding and comprises the following operation steps: the first step is as follows: blanking the flange plate and the web plate, and carrying out groove cutting on the web plate according to the plate thickness. The second step is that: and the leading-out arc plates are spot-welded on the two sides of the flange plate and the upper and lower parts of the two sides of the web plate. The third step: on the operation platform, the web plate is vertically placed, the flange plates which form an H-shaped structure with the web plate are placed at the upper end and the lower end of the web plate, and then the leading-out arc plates on the web plate and the leading-out arc plates on the flange plates are oppositely welded and fixed. The fourth step: and welding gun assemblies are arranged on two side edges of the lower end of the web plate to perform penetration welding on the web plate and the flange plate, and the web plate and the flange plate are processed into H-shaped steel. The height of the welding gun assembly fixed on the welding automatic walking trolley through the welding gun support is adjusted through adjusting screws at two ends of the welding gun support. The method has the characteristics of energy conservation, environmental protection, low loss of consumables and good operation stability. The problem of welding deformation is solved.
Description
Technical Field
The invention relates to the technical field of steel structure welding, in particular to a novel penetration welding construction process for a steel structure member.
Background
The building steel structural member is H-shaped steel with an equal section, the maximum section size is H600 (web) multiplied by 400 (flange plate) mm, the wall thickness range of the web of the H-shaped steel is 8-16 mm, and the length of the H-shaped steel member is 2-8 mm. The H-shaped steel component can also be arc-shaped (the flange plate is arc-shaped, the web plate is long straight strip-shaped, the web plate and the flange plate form arc-shaped H-shaped steel after being bent into arc-shaped), and the T-shaped welding seam of the H-shaped steel body is a full penetration welding seam.
The invention relates to a short weld or a nonlinear single T-shaped penetration weld besides a T-shaped penetration weld joint of an H-shaped steel long member, and the plate thickness relates to specifications of 8-30 mm and the like. Such welds are relatively short (< 200 mm) or they run in an arc (not straight).
The general method of T-shaped penetration weld is to weld after backing welding is performed on one side and back chipping is performed on the other side so as to guarantee the full penetration requirement of the T-shaped root. Although the method can realize penetration of the root of the welding seam, a part of parent metal and the welding seam at the root are removed by adopting methods such as gouging and back chipping, and the like, so that the loss of steel is caused; meanwhile, the carbon gouging can generate dust, noise and environmental pollution, and harm is caused to the health of a human body; back chipping increases heat input, resulting in increased post weld angular deformation of the component.
Disclosure of Invention
The invention mainly solves the defects of poor operation stability, large loss of consumables and serious pollution in the prior art, and provides a novel penetration welding construction process for a steel structural member, which has the characteristics of energy conservation, environmental protection, small loss of consumables and good operation stability. The problem of welding deformation is solved. Reducing the harm to the human health.
The technical problem of the invention is mainly solved by the following technical scheme:
a novel penetration welding construction process for a steel structural member comprises the following operation steps:
the first step is as follows: blanking the flange plate and the web plate, and carrying out groove cutting on the web plate according to the plate thickness.
The second step is that: and the leading-out arc plates are spot-welded on the two sides of the flange plate and the upper and lower parts of the two sides of the web plate.
The third step: on the operation platform, the web plate is vertically placed, the flange plates which form an H-shaped structure with the web plate are placed at the upper end and the lower end of the web plate, and then the leading-out arc plates on the web plate and the leading-out arc plates on the flange plates are oppositely welded and fixed.
The fourth step: and welding gun assemblies are arranged on two side edges of the lower end of the web plate to perform penetration welding on the web plate and the flange plate, and the web plate and the flange plate are processed into H-shaped steel. The height of the welding gun assembly fixed on the welding automatic walking trolley through the welding gun support is adjusted through adjusting screws at two ends of the welding gun support.
And after the welding and fixing of one flange plate and the web plate are completed, the H-shaped steel is turned over by 180 degrees, and the welding and fixing of the other flange plate and the web plate are continuously completed.
Preferably, the welding gun assembly is characterized in that a deep melting argon arc welding gun is arranged on one side of a web, an argon protection gun head is arranged on the other side of the web, and the deep melting argon arc welding gun and the argon protection gun head are symmetrically distributed.
Preferably, when the thickness of the web plate is 8mm, the inclination angles of the deep melting argon arc welding gun and the argon protection gun head are 40-41 degrees; when the thickness of the web plate is 16mm, the inclination angles of the deep melting argon arc welding gun and the argon protection gun head are 37-38 degrees.
Preferably, a plurality of trolley travelling wheels are arranged between the lower end of the welding automatic travelling trolley and the H-shaped steel, and side guide rollers are arranged on two side edges of the upper part of the H-shaped steel to ensure the travelling direction of the welding automatic travelling trolley.
Preferably, when the thickness of the web plate is 8mm, the groove is not formed, and the end part needs to be flat; when the thickness of the web plate is 16mm, a K-shaped groove is formed, the angle of the groove is 50 degrees, and the truncated edge is 4 mm.
Preferably, in the welding process, the forming of the welding seams at two sides and the stable state of the molten hole are observed in real time, and the distance between the welding gun assembly and the root of the groove is properly adjusted so as to ensure that the welding seams at two sides are formed well and the root is completely melted.
The invention can achieve the following effects:
compared with the prior art, the novel penetration welding construction process for the steel structural member has the characteristics of energy conservation, environmental protection, low loss of consumables and good operation stability. The problem of welding deformation is solved. Reducing the harm to the human health.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic front view of the H-shaped steel of the present invention placed on an operation platform.
FIG. 3 is a schematic side view of the H-beam of the present invention placed on the operation platform.
Fig. 4 is a schematic view of the construction of the welding gun assembly of the present invention.
In the figure: adjusting screw 1, welding automatic walking dolly 2, dolly walking wheel 3, welder support 4, side guide roller 5, welding rifle subassembly 6, operation platform 7, H shaped steel 8, flange plate 9, draw forth arc board 10, web 11, deep melting argon arc welder 12, argon protection rifle head 13.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): as shown in fig. 1-4, a novel penetration welding construction process for a steel structural member comprises the following operation steps:
the first step is as follows: the flange plate 9 and the web plate 11 are blanked, and the web plate 11 is slit according to the plate thickness. When the thickness of the web is 8mm, the groove is not formed, and the end part needs to be smooth; when the thickness of the web plate is 16mm, a K-shaped groove is formed, the angle of the groove is 50 degrees, and the truncated edge is 4 mm.
The second step is that: the leading-out arc plates 10 are spot-welded on the upper and lower parts of the two sides of the flange plate 9 and the two sides of the web plate 11.
The third step: on the operation platform 7, the web plate 11 is vertically placed, the flange plates 9 which form an H-shaped structure with the web plate 11 are placed at the upper end and the lower end of the web plate 11, and then the leading-out arc plates 10 on the web plate 11 and the leading-out arc plates 10 on the flange plates 9 are oppositely welded and fixed.
The fourth step: and welding gun assemblies 6 are arranged on two side edges of the lower end of the web plate 11 to perform penetration welding on the web plate 11 and the flange plate 9, and the H-shaped steel 8 is processed. The height of the welding gun assembly 6 fixed on the welding automatic walking trolley 2 through the welding gun support 4 is adjusted through the adjusting screws 1 at the two ends of the welding gun support 4. In the welding process, the forming of the welding seams at two sides and the stable state of the molten hole are observed in real time, and the distance between the welding gun assembly 6 and the root of the groove is properly adjusted so as to ensure that the welding seams at two sides are formed well and the root is completely melted.
The welding gun assembly 6 is characterized in that a deep melting argon arc welding gun 12 is arranged on one side of a web 11, an argon protection gun head 13 is arranged on the other side of the web 11, and the deep melting argon arc welding gun 12 and the argon protection gun head 13 are symmetrically distributed. When the thickness of the web plate is 8mm, the inclination angles of the deep melting argon arc welding gun 12 and the argon protection gun head 13 are 40-41 degrees; when the thickness of the web plate is 16mm, the inclination angles of the deep melting argon arc welding gun 12 and the argon protection gun head 13 are 37-38 degrees.
4 trolley traveling wheels 3 are arranged between the lower end of the welding automatic traveling trolley 2 and the H-shaped steel 8, and side guide rollers 5 are arranged on two side edges of the upper part of the H-shaped steel 8 to ensure the traveling direction of the welding automatic traveling trolley 2.
In conclusion, the novel fusion penetration welding construction process for the steel structural member has the characteristics of energy conservation, environmental protection, low material loss and good operation stability. The problem of welding deformation is solved. Reducing the harm to the human health.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (6)
1. A novel penetration welding construction process for a steel structural member is characterized by comprising the following operation steps:
the first step is as follows: blanking a flange plate (9) and a web plate (11), and carrying out groove cutting on the web plate (11) according to the plate thickness;
the second step is that: leading-out arc plates (10) are spot-welded on the two sides of the flange plate (9) and the upper and lower parts of the two sides of the web plate (11);
the third step: on an operation platform (7), a web plate (11) is vertically arranged, flange plates (9) which form an H-shaped structure with the web plate (11) are arranged at the upper end and the lower end of the web plate (11), and then an extraction arc plate (10) on the web plate (11) is welded and fixed with an extraction arc plate (10) on the flange plates (9) in a relative position;
the fourth step: welding gun assemblies (6) are arranged on two side edges of the lower end of the web plate (11) to perform fusion penetration welding on the web plate (11) and the flange plate (9) and process the web plate (11) and the flange plate into H-shaped steel (8); the height of the welding gun assembly (6) fixed on the welding automatic walking trolley (2) through the welding gun support (4) is adjusted through the adjusting screws (1) at the two ends of the welding gun support (4).
2. The novel penetration welding construction process of the steel structural member according to claim 1, characterized in that: the welding gun assembly (6) is characterized in that a deep melting argon arc welding gun (12) is arranged on one side of a web plate (11), an argon protection gun head (13) is arranged on the other side of the web plate (11), and the deep melting argon arc welding gun (12) and the argon protection gun head (13) are symmetrically distributed.
3. The novel penetration welding construction process of the steel structural member as claimed in claim 2, wherein: when the thickness of the web plate is 8mm, the inclination angles of the deep melting argon arc welding gun (12) and the argon protection gun head (13) are 40-41 degrees; when the thickness of the web plate is 16mm, the inclination angles of the deep melting argon arc welding gun (12) and the argon protection gun head (13) are 37-38 degrees.
4. The novel penetration welding construction process of the steel structural member according to claim 1, characterized in that: a plurality of trolley travelling wheels (3) are arranged between the lower end of the welding automatic travelling trolley (2) and the H-shaped steel (8), and side guide rollers (5) are arranged on two side edges of the upper part of the H-shaped steel (8) to ensure the travelling direction of the welding automatic travelling trolley (2).
5. The novel penetration welding construction process of the steel structural member according to claim 1, characterized in that: when the thickness of the web is 8mm, the groove is not formed, and the end part needs to be smooth; when the thickness of the web plate is 16mm, a K-shaped groove is formed, the angle of the groove is 50 degrees, and the truncated edge is 4 mm.
6. The novel penetration welding construction process of the steel structural member according to claim 1, characterized in that: in the welding process, the forming of the welding seams at two sides and the stable state of the molten hole are observed in real time, and the distance between the welding gun assembly (6) and the root of the groove is properly adjusted so as to ensure that the welding seams at two sides are formed well and the root is completely melted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110756437.8A CN113399788A (en) | 2021-07-05 | 2021-07-05 | Novel penetration welding construction process for steel structural member |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110756437.8A CN113399788A (en) | 2021-07-05 | 2021-07-05 | Novel penetration welding construction process for steel structural member |
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| CN113399788A true CN113399788A (en) | 2021-09-17 |
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| CN202110756437.8A Pending CN113399788A (en) | 2021-07-05 | 2021-07-05 | Novel penetration welding construction process for steel structural member |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202804453U (en) * | 2012-08-20 | 2013-03-20 | 中国石油天然气第六建设公司 | Semi-automatic carbon dioxide arc welding device |
| CN103157916A (en) * | 2012-09-17 | 2013-06-19 | 中国二十二冶集团有限公司 | H-shaped steel back-gouging-free welding method |
| CN106001868A (en) * | 2016-05-18 | 2016-10-12 | 南京合信智能装备有限公司 | Full penetration welding method for simultaneously welding H-shaped steel with two guns |
| JP2017094366A (en) * | 2015-11-26 | 2017-06-01 | 新日鐵住金株式会社 | Joint structure of h-shaped steel, bonding method of each h-shaped steel, and patch |
| CN110340497A (en) * | 2019-07-12 | 2019-10-18 | 浙江东南网架股份有限公司 | A kind of not back chipping realizes the welding procedure method of stainless steel H profile steel ontology T-type penetration |
| CN111843125A (en) * | 2020-07-08 | 2020-10-30 | 浙江东南网架股份有限公司 | Construction process for penetration welding of stainless steel component weld joint |
-
2021
- 2021-07-05 CN CN202110756437.8A patent/CN113399788A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202804453U (en) * | 2012-08-20 | 2013-03-20 | 中国石油天然气第六建设公司 | Semi-automatic carbon dioxide arc welding device |
| CN103157916A (en) * | 2012-09-17 | 2013-06-19 | 中国二十二冶集团有限公司 | H-shaped steel back-gouging-free welding method |
| JP2017094366A (en) * | 2015-11-26 | 2017-06-01 | 新日鐵住金株式会社 | Joint structure of h-shaped steel, bonding method of each h-shaped steel, and patch |
| CN106001868A (en) * | 2016-05-18 | 2016-10-12 | 南京合信智能装备有限公司 | Full penetration welding method for simultaneously welding H-shaped steel with two guns |
| CN110340497A (en) * | 2019-07-12 | 2019-10-18 | 浙江东南网架股份有限公司 | A kind of not back chipping realizes the welding procedure method of stainless steel H profile steel ontology T-type penetration |
| CN111843125A (en) * | 2020-07-08 | 2020-10-30 | 浙江东南网架股份有限公司 | Construction process for penetration welding of stainless steel component weld joint |
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Application publication date: 20210917 |
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| RJ01 | Rejection of invention patent application after publication |