Method for controlling welding deformation through rectangular steel plates
A rectangular steel plate, welding deformation technology, applied in welding equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of time-consuming flame correction after welding, increase construction costs, etc., achieve good economic benefits, reduce post-weld adjustment, cost reduction effect
Inactive Publication Date: 2018-12-18
BEIJING SHOUGANG CONSTR GROUP
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Problems solved by technology
[0002] In butt welding of medium and thick plates, anti-deformation and post-weld flame correction are often used to control welding deformation. However, due to the influence of size, weight and site conditions, anti-deformation measures cannot be adopted for many plate tailor welding, and post-weld flame correction is labor-intensive and time-consuming. , increasing the construction cost
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[0016] Figure 1-Figure 5 It is a specific embodiment of the present invention. The specific implementation is as follows:
[0017] In the first step, a plurality of rectangular steel plates 1 are processed in the processing plant, and a semicircular arc gap 2 is opened in the middle of the length direction of the rectangular steel plates 1 for the butt weld 6 to pass through;
[0018] In the second step, the rectangular steel plate block 1 is fixed by sliding welding on both sides of the butt joint position 5 of the first splicing plate 3 and the second splicing plate 4;
[0019] In the third step, after the rectangular steel plate block 1 is fixed, the butt weld position 5 is welded to form a butt weld 6;
[0020] In the fourth step, after the butt weld 6 is completely cooled, the rectangular steel plate 1 is removed, and the butt welding of the first splicing plate 3 and the second splicing plate 4 is completed.
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The invention relates to a method for controlling welding deformation through rectangular steel plates and belongs to the technical field of butt welding of medium-thickness plates. The method for controlling welding deformation through the rectangular steel plates includes the steps that the multiple rectangular steel plates (1) are machined in a fabrication plant, and semicircle notches (2) areformed in the middles of the rectangular steel plates (1) in the length direction of the rectangular steel plates (1) and used for allowing a butt welding seam (6) to pass therethrough; the rectangular steel plates (1) are fixed to two sides of a butt welding junction position (5) of a first splice plate (3) and a second splice plate (4) in a sliding welding mode; after the rectangular steel plates (1) are fixed, the butt welding junction position (5) is welded, and the butt welding seam (6) is formed; and after the butt welding seam (6) is completely cooled, the rectangular steel plates (1) are removed, and butt welding of the first splice plate (3) and the second splice plate (4) is completed. The method for controlling welding deformation through the rectangular steel plates has the advantages that welding deformation is rigidly controlled through the steel plates, post-welding adjustment is greatly reduced, and operation is convenient; and the steel plates can be repeatedly used, welding deformation controlling cost is greatly reduced, and good economic benefits are brought to companies.
Description
technical field [0001] The invention belongs to the technical field of butt welding of medium and thick plates, and in particular provides a method for controlling welding deformation by using a rectangular steel plate. Background technique [0002] In butt welding of medium and thick plates, anti-deformation and post-weld flame correction are often used to control welding deformation. However, due to the influence of size, weight and site conditions, anti-deformation measures cannot be adopted for many plate tailor welding, and post-weld flame correction is labor-intensive and time-consuming. , increase the construction cost. After continuous discussion, combined with the actual experience on site, our unit summarized and developed a new method of using rectangular steel plates to control welding deformation, and successfully applied it in the Jingtang project of Shougang. Contents of the invention [0003] The purpose of the present invention is to provide a method for ...
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IPC IPC(8): B23K31/00B23K31/02
CPCB23K31/003B23K31/022
Inventor 王放
Owner BEIJING SHOUGANG CONSTR GROUP