A method for carrying and assembling ship thick plates in sections

Abstract

The invention discloses a segmental loading and assembling method for thick plates of ships. The segmental loading and assembling method includes pre-welding assembly. The pre-welding assembly includes providing a plurality of sub segments made of the thick plates, determining assembly gaps of the sub segments, and mounting run-on plates and arc blowout plates; welding a first reinforcing member on structure surfaces, welded with aggregates, of every two adjacent sub segments and at a folding seam of the two sub segments to enable the first reinforcing member to be fixedly connected with the two sub segments; welding second reinforcing members on the structure surfaces and the ends of the folding seams to enable the second reinforcing members to be fixedly connected with the two corresponding sub segments to form a plurality of segments; welding third reinforcing members on the structure surfaces and cross folding seams of every four segments to enable the third reinforcing members tobe fixedly connected with the two corresponding adjacent segments to form a general segment. The segmental loading and assembling method has the advantages that the reinforcing members are welded to the folding positions of the thick plate segments during loading and folding, so that follow-up welding deformation can be reduced, welding quality and efficiency can be improved, and guarantee is provided for follow-up efficient automatic welding.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a method for carrying and assembling ship thick plates in sections. Background technique [0002] Welding is a processing technology and connection method that produces an interatomic bond between two workpieces through heating, pressure, or both. Welding is widely used and there are many types. Thick plate welding is also a kind of welding. It usually refers to the welding of plates that require three or more layers of multi-layer welding. The carbon content of the thick plate is relatively high, the welding cold crack is particularly sensitive, and the welding is difficult. Thick plates are generally used in more important parts in the hull structure, such as hull plates, main engine bases, etc. The steel castings in the hull structure usually have a large thickness and rigidity, and are complex in shape, and are generally used for components that bear large loads, such ...

AI Technical Summary

Problems solved by technology

The traditional welding process has the following defects: large welding shrinkage, welding stress and deformation control is difficult; multi-layer multi-pass welding is prone to defects and is not easy to repair; if repair occurs, the welding process needs to be repeated, which increases the The labor intensity of the operators reduces the efficiency of the segmented loading operation; the welding shrinkage is large, and once the deformation occurs, the orthopedic difficulty is relatively high

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