A kind of shading plate for the reserved area of ​​hull segmental welding

Abstract

The invention discloses a sheltering plate for a hull segmented welding reserve area. The sheltering plate is used for sheltering the local part of a T profile welded to a bottom plate or a bulkhead plate or an outer plate and comprises an upper sheltering plate body and a lower sheltering plate body; the upper sheltering plate body is formed by two upper half sheltering plate bodies in a symmetrically oppositely-closed mode; the upper half sheltering plate bodies are constituted by face plate sheltering plates and upper web sheltering plates; the face plate sheltering plates are each in a horizontal U shape, and the length of lower side plates is smaller than that of upper side plates; the upper web sheltering plates are vertically connected to the lower parts of the ends of the lower side plates of the face plate sheltering plates; the lower sheltering plate body is formed by two lower half sheltering plate bodies in a symmetrically oppositely-closed mode; the lower half sheltering plate bodies are constituted by lower web sheltering plates and bottom sheltering plates; the width of the lower web sheltering plates is the same as that of the upper web sheltering plates; and the bottom sheltering plates are each in a right-angle bent shape, the upper ends of straightly-bent plates are connected with the lower ends of the lower web sheltering plates, and the longitudinal lengthof the bottom sheltering plates is greater than the width of the lower web sheltering plates. According to the sheltering plate, the welding reserve area can be prevented from being polluted by coating, and the sheltering plate can be repeatedly used.

Description

technical field [0001] The invention relates to a shading plate for a section welding reserved area of ​​a hull. Background technique [0002] At present, the subsections of the inner side of the shell plate 100, the longitudinal bulkhead 200, and the straight area 300 of the ship's bottom generally have welding reserved areas (see figure 1 ), which is convenient for precision adjustment when the sections are closed or loaded in the dock. In addition, welding on the surface of the coated steel plate will affect the quality of the weld, so it needs to be cleaned. The weld area may only be temporarily protected with shop primer as required by the specification. The conventional method is to manually stick a 50mm wide adhesive tape on the reserved area of ​​the weld after sand washing and derusting in sections, so that it can be blocked when spraying paint in sections, remove the tape after painting, and then apply shop primer as a temporary protection. The steel plate after...

AI Technical Summary

Problems solved by technology

The steel plate after derusting should be painted in time to prevent rust returning. It often requires several workers to stick the tape on the reserved area of ​​the weld at the same time, and the tape is for one-time use. If the tape is pasted for a long time, some glue will remain and it is difficult to remove.

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