Importance

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Abstract

The flexible pipe connected with the flexible pipe connecting structure according to an embodiment of the present invention, wherein the connecting structure includes a body part, and a connecting part configured to have a smaller thickness than a thickness of the body part, wherein the first end portion is inserted into and welded to the connecting part, wherein the ledge is a step part provided between the body part and the connecting part. Also, a method of connecting a flexible pipe connecting structure with a flexible pipe according to an embodiment of the present invention, comprises a filler metal applying step of applying a filler metal on at least one of a first end portion of the flexible pipe having ridges and valleys and a connecting part of the flexible pipe connecting structure into which the first end portion is inserted, a flexible pipe inserting step of inserting the first end portion of the flexible pipe into the connecting part of the flexible pipe connecting structure so that the first end portion is held by a ledge formed on the flexible pipe connecting structure, and a flexible pipe welding step of heating at least a part of the flexible pipe inserted into the flexible pipe connecting structure so that the first end portion of the flexible pipe is welded to the flexible pipe connecting structure by the filler metal.

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First Claim