Hull curved block manufacturing method

Abstract

The invention discloses a hull curved block manufacturing method. The hull curved block manufacturing method includes the steps of carrying out pretreatment on a steel component; carrying out cutting, filling and processing; manufacturing an iron sample table; proofing and modifying an external board rib, specifically, the external board rib is subjected to secondary proofing and firer modification on the iron sample table to make the linetype of the external board rib coincident with the linetype of a corresponding rib on the iron sample table; manufacturing a triangular rib framework, specifically, the triangular rib framework is formed together by the external board rib, a deck cross beam and a temporary inclined strut; manufacturing components, a deck holder and a curved block framework; carrying out assembly welding of a curved external board; and carrying out assembly welding of block parts in bulk and hull block inspection. By adoption of the method, time and cost for manufacturing a curved jig frame are omitted by designing and manufacturing the triangular rib framework; meanwhile, the linetype data of the external board are guaranteed precisely, and the triangular rib framework has sufficient structural stiffness, so that positioning and assembly welding of the external board are convenient, the construction difficulty of the whole curved block is remarkably decreased, and economic benefits are high.

Description

technical field [0001] The invention relates to a method for constructing hull segments, which belongs to the technical field of ships and marine engineering equipment, in particular to a method for manufacturing hull curved surface segments. Background technique [0002] In order to ensure the speed and propulsion efficiency of the ship, the bow and stern lines need to be designed to be streamlined. Therefore, the segments of the bow, engine room and stern of the ship are generally curved surface segments, and the segment forms are mostly L-type, F-type, P-type or door type. The above types of curved surface segments include 1~2 layers of deck frames, and one or more curved surface pieces. The following two methods are often used for segmental construction: [0003] The first type is that the curved surface segments are reversed with the deck as the base surface. At the same time, the curved surface pieces are separately manufactured on the curved surface tire frame, and t...

AI Technical Summary

Problems solved by technology

[0006] The second construction method has lower requirements for construction personnel, but it takes a long time to occupy the fetal position, and because the outer plate is assembled by loose cover, it often needs to be strongly positioned, and the residual stress of the outer plate is relatively large. The control quality of the line type is poor, and the trimming workload is heavy in the process of closing the surface segments

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