Correcting and docking method for large-diameter steel pipes

Abstract

The invention discloses a correcting and docking method for large-diameter steel pipes. The method comprises the following steps of measuring the roundness of the outer surface of a steel pipe, makingstatistics of the measurement data, and marking the position different from the roundness of a standard steel pipe as a correction site; jacking the steel pipe by a correcting component at the correction site to make the roundness of the steel pipe the same as that of the standard steel pipe; and aligning and docking the corrected steel pipe with other steel pipes after the correction. By arranging the correcting component to correct the roundness of steel pipes, the correcting and docking method for large-diameter steel pipes provided by the invention solves the problem that the roundness ofround pipes after the production of rolled steel pipes is not in accordance with the standard, resulting in difficulty to ensure the welding quality, avoids the problems of repeated work and difficulty in correction, improves the production efficiency as well as production accuracy, and is time-saving and labor-saving. The correcting and docking method for large-diameter steel pipes also uses simple docking components to reduce the number of workers and shorten the docking and correcting work that three people can complete in 2-3 hours to 20 minutes, which is high in efficiency, and time-saving and labor-saving.

Description

technical field [0001] The invention relates to the technical field of steel structure construction, in particular to the field of straightening and docking of large-diameter steel pipes. Background technique [0002] In the field of steel structures, large-diameter round pipes are often used in the construction of various pipe networks, but large-scale round pipes cannot be produced by mechanical automation. The difficulty is high, the forming quality is difficult to guarantee, and there are many follow-up works after the round tube is formed. [0003] In the production process, the diameter of the curling effect of the round tube affects the quality of the round tube, and the correction of the formed round tube consumes a lot of manpower and material resources, and it is necessary to use auxiliary tools such as jacks, angle steel, welding machines, auxiliary steel plates, and sledgehammers. The production efficiency is relatively low, and the labor investment is large; in...

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Problems solved by technology

[0002] In the field of steel structures, large-diameter round pipes are often used in the construction of various pipe networks, but large-scale round pipes cannot be produced by mechanical automation. The difficulty is high, the forming quality is difficult to guarantee, and there are many follow-up work after the round tube is formed.

[0003] In the production process, the diameter of the curling effect of the round tube affects the quality of the round tube, and the correction of the formed round tube consumes a lot of manpower and material resources, and it is necessary to use auxiliary tools such as jacks, angle steel, welding machines, auxiliary steel plates, and sledgehammers. The production efficiency is relatively low, and the labor investment is large; in the process of docking, if there is no calibration of the docking parts, it will cause deviations in the docked steel pipes. Manual calibration of the docking is inefficient, time-consuming and labor-intensive

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