PIPE FORMING METHOD AND JIG THEREFOR

摘要

PROBLEM TO BE SOLVED: To prevent generation of a stiff part where a heat shrinkage tube is not tightly applied in putting the heat shrinkage tube to cover a tube end part having a protruded part on an outer circumference. SOLUTION: In putting a heat shrinkage tube 14 to cover an end part of a pipe insertion port 7 having a protruded part 10 on an outer circumference 16, a jig 21 having a corresponding form to the form of the protruded part 10 and the pipe outer surface 16 along the protruded part 10 is prepared. As the jig 21 is applied to the protruded part 10 and the pipe outer surface 16 from the outer circumferential side of the heat shrinkage tube 14, the tube 14 is heat-shrunk.