Forming Technology of Full Penetration Class I Components with Unclean Root Butt Joints of Medium and Heavy Plates

Abstract

The invention discloses a forming process of a moderate-thickness plate no-back-gouging butt joint full-penetration class-I component and relates to a moderate-thickness plate tailored-welding forming process. The forming process comprises the steps of preparing plates, cutting the plates to form process grooves, performing tailored welding on the plates, adding ceramic backings, iron liners, clamps and process triangular plates, performing single-side welding on the clamps and the process triangular plates to form single-side welding beads, adding a leading-in arc plate and a leading-out arc plate, welding two moderate-thickness plates, dismounting the ceramic backings, the iron liners, the clamps, the process triangular plates, the leading-in arc plate and the leading-out arc plate, polishing and repairing the single-side welding beads, performing ultrasonic inspection on the single-side welding beads, encoding and marking qualified products and performing next working procedures. The quality of weld joints is guaranteed, butt-jointed plates do not easily deform, production efficiency is high, on-site butt joint operation is quick and easy, lots of manpower resources can be saved, the labor intensity of workers can be reduced, and production cost can be reduced.

Description

technical field [0001] The invention relates to a forming process for butt welding of medium and thick plates, in particular to a forming process for butt joints of medium and thick plates with full penetration level I components. Background technique [0002] Medium and thick plate structures have been widely used in the fields of ship plates and shells, port machinery box girders, and sea-crossing bridge decks. The welding of medium and thick plates plays an important part in the production of steel structures, which directly affects product quality and quality. Productivity. [0003] In the prior art, when butt-welding medium and thick plates, a V-shaped process groove or a K-shaped process bevel is made on both sides of the medium and thick plate first, and a certain blunt groove is left on the medium and thick plate. Edge and assembly gap, and then through proper anti-deformation control, front side welding of spliced ​​plate weld bead is carried out on the medium and ...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned prior art scheme, when the butt welding of the medium and thick plates is carried out, the medium and thick plates need to be turned over first, and after the turning is completed, the weld bead of the spliced ​​plate needs to be cleaned, primed, filled and covered in sequence. Surface operation, the above-mentioned operation plan is relatively complicated, time-consuming, high cost input, labor intensity of workers, low production efficiency, plate deformation is not easy to control, product qualification rate is not high, only limited to plate docking, and the application range is narrow, so there is a need for improvement

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