CN102632345A - Welding method of special double-C-shaped steel for nuclear power bridge frame - Google Patents
Welding method of special double-C-shaped steel for nuclear power bridge frame Download PDFInfo
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- CN102632345A CN102632345A CN2012101041620A CN201210104162A CN102632345A CN 102632345 A CN102632345 A CN 102632345A CN 2012101041620 A CN2012101041620 A CN 2012101041620A CN 201210104162 A CN201210104162 A CN 201210104162A CN 102632345 A CN102632345 A CN 102632345A
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Abstract
The invention discloses a welding method of special double-C-shaped steel for a nuclear powder bridge frame. The welding method comprises the following steps of: simultaneously welding the two welding surfaces of the double-C-shaped steel, respectively arranging welding nozzles on the first welding surface and second welding surface of the double-C-shaped steel, and simultaneously welding the first welding surface and the second welding surface through the welding nozzles. As the first welding surface and the second welding surface are simultaneously welded, the two welding surfaces are subject to the consistent temperature, the internal stress generated by the C-shaped steel is smaller, the C-shaped steel can be prevented from generating greater deformation, and the quality of the double-C-shaped steel is further improved.
Description
Technical field
The present invention relates to a kind of welding method, the welding method of the special-purpose double-C-shaped steel of particularly a kind of nuclear power crane span structure belongs to technical field of machining.
Background technology
Along with resources such as non-renewable coal, oil, natural gas constantly reduce, the rapid growth that global energy consumes, generated energy, the little nuclear power station of pollution become the emphasis of big countries' development novel energies such as China, the U.S..Cable testing bridge is widely used in the construction of nuclear power station as transmission facility.Double-C-shaped steel is the key member that nuclear power is installed cable testing bridge, and the quality of its quality has very big influence for the installation quality of crane span structure.Traditional double-C-shaped steel is adopted the manual welding for the workman more; But to reach 6 meters, weight usually heavier because the C shaped steel length that the nuclear power crane span structure uses is long, and it is big not only to have increased the welding difficulty, and welding quality also can't guarantee.
In order to solve the problems of the technologies described above, the special-purpose double-C-shaped steel automatic soldering device of a kind of nuclear power crane span structure has appearred recently, comprise that workbench, workbench are provided with guide rail, welding machine, welding machine can move on guide rail; Welding machine is provided with a welding gun, and the welding gun of said welding machine is located at the weld of C shaped steel, and during work, welding machine moves on guide rail; Welding gun moves on C shaped steel, and is earlier that two C shaped steel solder side on one side is integrally welded, again with the upset of C shaped steel, that the solder side of the another side of two C shaped steel is integrally welded; Thereby, being processed into double-C-shaped steel, the welder of this structure is owing to only there is a welding gun; The C shaped steel of two monomers can only independently weld two solders side, and the steel body is in welding process, and C shaped steel can be heated and produce distortion, because two solders side are inconsistent weld interval; It is inconsistent to cause two steel bodies to be heated, and is easy to generate stress, thereby, make after the welding double-C-shaped steel since internal stress can't discharge; Be easy to generate distortion, thereby, the quality of double-C-shaped steel influenced.
Summary of the invention
Technical problem to be solved by this invention provides the welding method of the special-purpose double-C-shaped steel of a kind of nuclear power crane span structure, and this welding method is easy to operate, and is not easy to produce distortion through the double-C-shaped steel of this welding method processing, and quality is good.
In order to solve the problems of the technologies described above, the welding method of the special-purpose double-C-shaped steel of a kind of nuclear power crane span structure of the present invention wherein, comprises the steps:
A, alignd each other and clamp in the bottom surface of two C shaped steel;
B, the two welding guns of employing weld simultaneously, are respectively equipped with welding gun on first solder side of two C shaped steel and second solder side, during welding, through welding gun first solder side and second solder side are welded simultaneously;
C, naturally cool to room temperature.Because first solder side and second solder side weld simultaneously, two temperature unanimities that solder side is suffered, the internal stress that C shaped steel is produced is less, avoids C shaped steel to produce bigger distortion, therefore, has improved the quality of double-C-shaped steel.
The special-purpose double-C-shaped steel welding method of above-mentioned nuclear power crane span structure, wherein, during welding; Welding current 250～270A, the voltage of welding gun are 28V～30V, the speed 20～29cm/min of welding gun; Welding temperature is 100 ℃-150 ℃; And adopt CO2 gas to spray on solder side, to form protective cover, gas flow 18～20L/min, the oblique ejection of gas.Adopt CO2 gas to spray and on solder side, form protective cover; Prevent the harmful effect that airborne oxygen, nitrogen pernicious gas produce solder side, the content of oxygen and nitrogen in the minimizing solder side, and the cool time of prolongation solder side; Reduce the welding stress of solder side, improve welding quality; In addition, the oblique ejection of gas, avoid to solder side directly spray hit, prevent that solder side is damaged, thereby, further improved the welding quality of double-C-shaped steel.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the enlarged diagram at A of the present invention place.
Fig. 3 is the structural representation of clamping device of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
As shown in the figure, in order to solve the problems of the technologies described above the special-purpose double-C-shaped steel automatic soldering device of a kind of nuclear power crane span structure of the present invention; Comprise workbench 1, be arranged on clamping device 2, welding machine 3 on the workbench 1, the tip 32 of welding machine can move on workbench 1, and clamping device 2 quantity can be two; Also can be a plurality ofly, clamping device 2 is successively set on the workbench, during welding; Two tips 32 lay respectively on two solders side 4 of double-C-shaped steel; Solder side to double-C-shaped steel welds simultaneously, avoids C shaped steel owing to the inequality of being heated produces distortion, has improved the quality of double-C-shaped steel; In addition, this welder is simple in structure, easy to operate.Clamping device 2 is unrestricted, in the present embodiment, for easy to operate; Said clamping device 2 comprises locating piece 21, clamp assembly 22, and what said locating piece 21 and said clamp assembly 22 were parallel to each other is fixedly installed on the said workbench 1 locating piece 21 and clamp assembly 22 mutual concordant settings; Also can be crisscross arranged, in the present embodiment, stressed evenly in order to make C shaped steel; Preferably with locating piece 21 and clamp assembly 22 coequal being crisscross arranged on workbench, locating piece 21 is fixed on the workbench 1 through welding or other modes, and said clamp assembly 22 comprises check lock lever 221, clamping bar 222, catch bar 223; Said check lock lever 221 links into an integrated entity through said catch bar 223 with said clamping bar 222, and the two ends of said catch bar 223 flexibly connect with said check lock lever 221 and said clamping bar 222 respectively, and catch bar 223 1 ends are connected with clamping bar through pivot pin or other modes; One end of check lock lever 221 is provided with axial inner groovy, and the other end of catch bar 223 inserts in the groove, and links into an integrated entity through pivot pin and the check lock lever 221 that passes across; During clamping, pull check lock lever 221, check lock lever 221 promotes clamping bar 222 through catch bar 223; When clamping bar 222 clamped, said catch bar 221 1 end levels withstood on the end face of clamping bar 222, and the other end and the check lock lever of catch bar 223 are perpendicular; And withstand on the check lock lever; Form locking, thereby C shaped steel is clamped, through clamp assembly 22 and cooperating of locating piece 21 two C shaped steel being clamped; Make the stressed more even of C shaped steel, and operate more convenient.
For easy to use, workbench 1 is provided with moving guide rail 12, pushing mechanism, and moving guide rail 12 is parallel to each other with clamping device 2; Moving guide rail is provided with mobile member, and pushing mechanism can be hydraulic force mechanism, also can be the air pressure pushing mechanism; The push rod of pushing mechanism withstands on the mobile member, during work, promotes mobile member and moves along moving guide rail 12; The tip 32 of welding gun is installed on the mobile member 12, and during welding, tip 32 is along with mobile member moves.
The invention also discloses the welding method of the special-purpose double-C-shaped steel of this nuclear power crane span structure, wherein, comprise the steps:
A, alignd each other and clamp through clamping device 2 in the bottom surface of two C shaped steel 4;
B, two solders side of double-C-shaped steel are welded simultaneously, be respectively equipped with tip on first solder side of two C shaped steel and second solder side, during welding, first solder side and second solder side are welded simultaneously through tip;
D, naturally cool to room temperature.Because first solder side and second solder side weld simultaneously, two temperature unanimities that solder side is suffered, the internal stress that C shaped steel is produced is less, avoids C shaped steel to produce bigger distortion, therefore, has improved the quality of double-C-shaped steel.
The special-purpose double-C-shaped steel welding method of above-mentioned nuclear power crane span structure, wherein, during welding, welding current 250～270A, the voltage of welding gun are 28V～30V, the speed 15～26cm/min of welding gun, welding temperature is 100 ℃-150 ℃, and adopts CO
2Gas sprays and on solder side, forms protective cover, gas flow 18～20L/min, the oblique ejection of gas.Adopt CO
2Gas sprays and on solder side, forms protective cover; Prevent the harmful effect that airborne oxygen, nitrogen pernicious gas produce solder side, the content of oxygen and nitrogen in the minimizing solder side, and the cool time of prolongation solder side; Reduce the welding stress of solder side, improve welding quality.
Embodiment one
The welding method of the special-purpose double-C-shaped steel of nuclear power crane span structure wherein, comprises the steps:
A, alignd each other and clamp through clamping device 2 in the bottom surface of two C shaped steel 4;
B, two solders side of double-C-shaped steel are welded simultaneously, be respectively equipped with tip on first solder side of two C shaped steel and second solder side, during welding, first solder side and second solder side are welded simultaneously through tip; Welding current 250A, the voltage of welding gun are 28V, the speed 15cm/min of welding gun, and welding temperature is 100 ℃, and adopts CO
2Gas sprays and on solder side, forms protective cover, gas flow 18L/min, and the oblique ejection of gas, the angle between gas and the solder side is an acute angle.
C, naturally cool to room temperature.
Embodiment two
The welding method of the special-purpose double-C-shaped steel of nuclear power crane span structure wherein, comprises the steps:
A, alignd each other and clamp through clamping device 2 in the bottom surface of two C shaped steel 4;
B, two solders side of double-C-shaped steel are welded simultaneously, be respectively equipped with tip on first solder side of two C shaped steel and second solder side, during welding, first solder side and second solder side are welded simultaneously through tip; Welding current 270A, the voltage of welding gun are 30V, the speed 26cm/min of welding gun, and welding temperature is 150 ℃, and adopts CO
2Gas sprays and on solder side, forms protective cover, gas flow 20L/min, and the oblique ejection of gas, the angle between gas and the solder side is an acute angle.
In sum, the special-purpose double-C-shaped steel automatic soldering device of this nuclear power crane span structure has solved that nuclear power double-C-shaped steel process velocity is slow, the uncontrollable problem of product quality; And this device has alleviated welder labour, and product quality is under control, and has reduced production cost, has improved efficient.
What describe in the above specification is the specific embodiment of the present invention; This does not illustrate flesh and blood of the present invention is constituted restriction; Under the those of ordinary skill of technical field after having read specification, can make an amendment or be out of shape the foregoing specific embodiment, and do not deviate from essence of an invention and scope.
Claims (2)
1. the welding method of the special-purpose double-C-shaped steel of nuclear power crane span structure is characterized in that, comprises the steps:
A, alignd each other and clamp in the bottom surface of two C shaped steel;
B, the two welding guns of employing weld simultaneously, are respectively equipped with welding gun on first solder side of two C shaped steel and second solder side, during welding, through welding gun first solder side and second solder side are welded simultaneously;
C, naturally cool to room temperature.
2. the special-purpose double-C-shaped steel welding method of nuclear power crane span structure as claimed in claim 1 is characterized in that, during welding; Welding current 250～270A, the voltage of welding gun are 28V～30V, the speed 20～29cm/min of welding gun; Welding temperature is 100 ℃-150 ℃; And adopt CO2 gas to spray on solder side, to form protective cover, gas flow 18～20L/min, the oblique ejection of gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101041620A CN102632345A (en) | 2012-04-09 | 2012-04-09 | Welding method of special double-C-shaped steel for nuclear power bridge frame |
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| CN2012101041620A CN102632345A (en) | 2012-04-09 | 2012-04-09 | Welding method of special double-C-shaped steel for nuclear power bridge frame |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972209A (en) * | 2015-06-30 | 2015-10-14 | 柳州金茂机械有限公司 | Method for welding special-purpose T-type steel for bridge frame |
| CN106425037A (en) * | 2016-10-13 | 2017-02-22 | 广西大学 | Welding method for special steel sheets for heat exchanger |
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| JP2011212687A (en) * | 2010-03-31 | 2011-10-27 | Nisshin Steel Co Ltd | Temporary assembling device of welded section steel |
| CN202090514U (en) * | 2011-05-26 | 2011-12-28 | 烟台新科钢结构有限公司 | Improved corrugated web plate H-shaped steel |
| CN202171312U (en) * | 2011-08-02 | 2012-03-21 | 南京天加空调设备有限公司 | C-type steel base frame of box body of combined air conditioner box with balance adjusting devices |
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2012
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10227100A (en) * | 1997-02-13 | 1998-08-25 | Sumikin Kozai Kogyo Kk | Structural section steel for building |
| CN201002178Y (en) * | 2007-01-31 | 2008-01-09 | 雅致集成房屋股份有限公司 | Automatic welding device |
| CN201241424Y (en) * | 2008-07-30 | 2009-05-20 | 贺琦 | Special-shaped H section bar |
| CN101434013A (en) * | 2008-12-09 | 2009-05-20 | 彩虹集团电子股份有限公司 | Method for welding 'H'-shaped metal strip material |
| JP2011083811A (en) * | 2009-10-19 | 2011-04-28 | Ihi Corp | Welding equipment and welding method using the same |
| JP2011212687A (en) * | 2010-03-31 | 2011-10-27 | Nisshin Steel Co Ltd | Temporary assembling device of welded section steel |
| CN101954544A (en) * | 2010-08-31 | 2011-01-26 | 中国一冶集团有限公司 | Preparation method of 1250-ton crawler crane supporting box |
| CN102179606A (en) * | 2011-02-18 | 2011-09-14 | 济钢集团有限公司 | Welding process for 1,000MPa level non-quenched and tempered high-strength steel |
| CN202090514U (en) * | 2011-05-26 | 2011-12-28 | 烟台新科钢结构有限公司 | Improved corrugated web plate H-shaped steel |
| CN202171312U (en) * | 2011-08-02 | 2012-03-21 | 南京天加空调设备有限公司 | C-type steel base frame of box body of combined air conditioner box with balance adjusting devices |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972209A (en) * | 2015-06-30 | 2015-10-14 | 柳州金茂机械有限公司 | Method for welding special-purpose T-type steel for bridge frame |
| CN106425037A (en) * | 2016-10-13 | 2017-02-22 | 广西大学 | Welding method for special steel sheets for heat exchanger |
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Application publication date: 20120815 |