Butt joint assembling method for broadside subsection with bevel position and groove-shaped bulkhead subsection

Abstract

The invention discloses a butt joint assembling method for a broadside subsection with a bevel position and a groove type bulkhead subsection. The inner longitudinal wall of the broadside subsection comprises a first plate and a second plate connected with the first plate and forming a preset angle. The assembling method comprises: marking a first mounting line and a first inspection line on the framework surface of the first plate; reversely connecting the first mounting line and the first inspection line to the cargo hold surface of the first plate to form a second mounting line and a secondinspection line; welding and assembling the first plate to the broadside subsection according to the first mounting line and the first inspection line, and pre-assembling the second plate to the broadside subsection; erecting a laser instrument. According to the method, accurate butt joint assembly of the carbon steel groove profile and the stainless steel groove profile in the folded corner position of the linear broadside subsection can be simply and efficiently achieved, and the butt joint precision of the groove profile structure of the linear broadside subsection can be rapidly detected.And while the ship building precision is met, a large amount of nondestructive flaw detection operation is avoided, the ship building period is shortened, and the production cost is reduced.

Description

Technical field [0001] The invention belongs to the technical field of ship construction, and in particular relates to a butt assembly method for a side section with a corner position and a trough-shaped compartment section. Background technique [0002] The internal area of ​​chemical tanker cargo tanks is all made of stainless steel, and a large number of horizontal trough-shaped compartment sections are used for cargo compartment subdivision. The carbon steel trough inside the side section needs to be accurately docked with the stainless steel trough section. Once there is a large deviation in the butt joint structure during the construction process, the stainless steel will have insufficient butt joint strength, weld cracks, stress corrosion and other problems, resulting in huge waste of repair costs. Due to the linear area of ​​the bow and stern, the side section is not a straight structure, and the inner longitudinal wall of the section has two oblique inclination angles. A...

AI Technical Summary

Problems solved by technology

Once there is a large deviation in the butt joint structure during the construction process, it will lead to problems such as insufficient butt joint strength, weld cracking, and stress corrosion of stainless steel, resulting in huge waste of repair costs

Due to the linear area of ​​the bow and stern, the side section is not a straight structure, and the longitudinal wall of the section has oblique inclination angles in two directions. At the same time, the sections on both sides of the knuckle cannot draw a unified baseline at one time.

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