JOINTING SLEEVE, JOINT DEVICE, JOINT STRUCTURE, AND JOINTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a joint sleeve, a joint device. a joint structure and a joint method capable of jointing a plurality of pipe lines stably and easily to each other.SOLUTION: A joint sleeve 1 comprises: a sleeve body 10 having a shell 11 extending along an axis line O and a ring-shaped ring portion 12 protruding radially inward from the inner circumferences 10A and 10B of said shell 11 and forming a ring shape; and a metal layer M made of an amorphous metal and formed on the inner circumferences 10A and 10B of said shell 11 and on the two faces directed in the direction of said axis O in said ring part 12.SELECTED DRAWING: Figure 1