Ship T-shaped profile anti-deformation machining process

Abstract

The invention belongs to the field of ship T-shaped profile machining, and particularly discloses a ship T-shaped profile anti-deformation machining process. The ship T-shaped profile anti-deformationmachining process comprises the following steps that a T-shaped profile component assembling and welding anti-deformation jig frame and a T-shaped profile component mold are built, and the T-shaped profile component mold is provided with a mold cavity matched with a T-shaped profile component; the T-shaped profile component is placed in the mold cavity, the mold cavity is filled with a proper amount of liquid nitrogen, the mold is assembled, and the interior of the mold cavity is cooled by the liquid nitrogen; the T-shaped profile component is placed on the assembling and welding anti-deformation jig frame, the T-shaped profile component is fixed through a fixing structure on the assembling and welding anti-deformation jig frame, a cooling agent is sprayed to a weld joint area of the T-shaped profile component through a spray head, the temperature of the weld joint area is lower than that of a base metal area, and a weld joint anti-deformation freezing layer is formed in the weld joint area; and after fixing is completed, assembling and welding of the T-shaped profile component are conducted, and after assembling and welding are completed, repair welding and air hole grinding needto be conducted on weld joints. The machining process is free of deformation, and the working efficiency of shipbuilding can be greatly improved.

Description

technical field [0001] The invention relates to the field of ship T profiles, in particular to an anti-deformation processing technology for ship T profiles. Background technique [0002] Under the form of global economic integration, international trade activities are becoming more and more frequent, and with the increase of international trade volume, the demand for maritime transportation increases accordingly, and the single operation cost remains high, which has become a major influence on the profits of major shipping companies. One of the main reasons is that in order to reduce operating costs, when various shipping companies choose ship types, most of them prefer larger ships, and the strength of the hull structural parts of larger ships often requires a large number of T-shaped bars (members ) to strengthen, therefore, a large number of T-shaped (components) applications have become an indispensable material for the construction of various large-scale ship hulls. ...

AI Technical Summary

Problems solved by technology

[0003] The hull of a ship is welded by steel. The cutting and welding of steel is easy to produce deformation and affect the processing and manufacturing, especially the T-shaped bar widely used in ships, and the T-shaped bar is deformed due to the high temperature in the weld area during assembly and welding. Large quantities can easily lead to cracking problems, so a T-shaped anti-deformation processing technology is needed

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