| 摘要 |
PURPOSE: A socket for combining a spiral pipe and a manufacturing method thereof are provided to prevent water leakage in connection of the spiral pipe since a protrusion is pressed to a coupling member to prevent the protrusion from becoming separated from the coupling member. CONSTITUTION: A manufacturing method of a socket for coupling a spiral pipe is as follows. A given length of a coupling member(30) is prepared, and the inner diameter of the coupling member is the same to the outer diameter of the spiral pipe. A tap hole(31) is formed on the coupling member. The lower part of the inner tap hole of the coupling member is propped up by a support mold(51). A left mold and a right mold(53) are placed on the left and right of the coupling member, and front and rear molds(54,55) move before and after the coupling member and make tight contact with the coupling member. An injection material is put into a space, which is formed by front and rear molds, and left and right molds.
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