Ship lap joint type groove type construction method

Abstract

The invention discloses a ship lap joint type groove type construction method. A cabin wall is a U-shaped groove, the method comprises the steps that (1), a special jig tool for welding of an U-shapedgroove is prepared, and a center line and a horizontal line are assumed by the surveying and drawing of the jig tool; (2) bottom plates of the U-shaped groove are positioned according to the center line and the horizontal line, the width data of the bottom plates is measured to determine the connecting position point of side plates, and angles of the side plates and the bottom plates are determined by using a first angle control tool; (3) welding of the bottom plates and the inner surfaces of the side plate is performed through flat welding, and the interior of a groove opening is fully welded; (4) a second angle control tool is installed, and the U-shaped groove is placed on the special jig tool to carry out submerged arc welding on the outer surfaces of the side plates and the bottom plates; and (5) the lap joint type groove type cabin wall is built in a segmented mode, the groove type jig is manufactured, a ground sample line and the horizontal line are surveyed and drawn, the welded U-shaped groove is hoisted to the groove type jig, the welding shrinkage amount is added, welding between the U-shaped groove assemblies is completed, and I-shaped reinforcing ribs are arranged onthe upper surface and the lower surface of the U-shaped groove segmented cabin wall in the direction perpendicular to the extending direction of the U-shaped groove.

Description

technical field [0001] The invention relates to the technical field of ship tooling, in particular to a method for building a ship lap groove. Background technique [0002] The 64000 sawdust ship trough bulkhead is assembled by single-piece boards, which is different from the general bulk carrier bending type. It adopts a welded construction method, and the inside of the notch is fully welded. The welding workload is heavy and welding deformation is easy to occur . According to experiments, the deformation of a single groove after welding can reach 60mm. How to improve the accuracy of the welded groove to ensure product quality is an urgent problem to be solved in the hull construction of this ship type. Contents of the invention [0003] The object of the present invention is to overcome the defects existing in the prior art, and provide a method for building a ship's lap groove with high welding precision and high pass rate. [0004] In order to achieve the above objec...

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Problems solved by technology

[0002] The 64000 sawdust ship trough bulkhead is assembled by single-piece boards, which is different from the general bulk carrier bending type. It adopts a welded construction method, and the inside of the notch is fully welded. The welding workload is heavy and welding deformation is easy to occur

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