Device for testing airtightness of weld joint on ship surface and using method thereof

Abstract

The invention discloses a device for testing the airtightness of a weld joint on a ship surface and a using method thereof. The device comprises an outer frame of which the lower end face is matched with the ship surface, wherein the top end of the outer frame is sealed and provided with an organic glass plate; the edge of the lower end face of the outer frame is connected with a rubber strip; and the organic glass plate is provided with a vacuumizing pipe orifice. The device can be used for the in-situ inspection of the quality of the weld joint to effectively reduce workload of re-derusting production of a component segment left uncoated as required by a segmental airtight weld joint after segment joint and workload of painting construction, reduce paint waste and create a necessary condition for meeting the requirements of a standard specified in IMO Standards for Coating Performance that the damage area of a ballast tank should not exceed 2 percent after segment joint, so the device can be widely used in the in-situ inspection of the quality of weld joints, particularly the segmental tests of pre-sealed weld joints on large-curve segments such as ship head and ship end.

Description

technical field [0001] The invention relates to an inspection technology in the segmented manufacturing process of a ship, in particular to an inspection device for the airtightness of weld seams on a curved surface of a ship and a method for using the same. Background technique [0002] With the implementation of IMO's "Performance Standard for Ballast Tank Protective Coatings" (PSPC for short) approaching, how to solve the problem that the damaged area of ​​the ballast tank after closing cannot exceed 2% is also imminent. In addition to improving the integrity of the hull structure In addition to improving the accuracy of the hull manufacturing and increasing the pre-outfitting rate of the sections, it is also a key and important part to complete the section pre-tightness weld test before the section painting and improve the integrity of the section painting. For the pre-tightness weld test with small moderate and moderate curves, we usually use the ballast tank air pump p...

AI Technical Summary

Problems solved by technology

For the pre-tightness weld test with small moderate and moderate curves, we usually use the ballast tank air pump pressure inspection method: inflate the relevant ballast tank, apply soapy water to the relevant weld, and confirm that the bubble is Leakage points, this inspection method cannot meet the requirements of segmented overall coating and quality, which also brings difficulties to the control of manufacturing progress and production costs, and also increases the repetitive labor of shipbuilders. Therefore, it is necessary to find a feasible on-site Weld seam quality inspection device has been put on people's research agenda

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