Membrane metal panel with flat welding joint part for insulated cargo tanks of LNG carrier

摘要

The present invention relates to a membrane metal panel of an LNG carrier insulation tank, and an object thereof is to improve the shape of the end portion of some corrugations present in the membrane metal panel to planarize a portion of the weld of the membrane metal panel, thereby facilitating the manufacture of the insulation tank. It is to provide a membrane metal panel of the LNG carrier insulation tank.;In order to achieve the above object, the present invention provides a plurality of transverse / longitudinal linear corrugations formed in parallel with each other, and a planar portion formed by protruding the transverse / longitudinal linear corrugations in one direction, and a corner and four sides. A membrane metal panel having a contact welding portion formed at an end thereof; The transverse straight corrugation includes a plurality of transverse connecting corrugations whose ends extend to both ends of the membrane metal panel, and a plurality of transverse connecting corrugations positioned between the two ends connected to the flat portion by the finishing portion. Consisting of two transverse finishing corrugations, the longitudinal straight corrugations being positioned between the plurality of longitudinal connecting corrugations, both ends of which extend to both ends of the membrane metal panel, and the plurality of longitudinal connecting corrugations Is a planarized contact weld comprising a plurality of longitudinal finish corrugations leading to a flat portion by a finish, the width of which is defined between both ends of the plurality of transverse and longitudinal finish corrugations and the four sides of the membrane metal panel. Is to be formed.;Membrane, LNG Carrier, Insulation Tank, Corrugation, Flat Welding