| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a synthetic resin long size water feeding pipe, capable of reducing winding deformation. <P>SOLUTION: This manufacturing method of the long size water feeding pipe 1 is composed of a molding process, a cross-linking process, and a winding binding process. Here, the molding process is a process of extrusion molding a long size synthetic resin pipe 1a by a synthetic resin material. The cross-linking process is a process of cross-linking for storing a shape of its straight state in a state of extending the molded synthetic resin pipe 1a in a straight shape. The winding binding process is a process of binding for maintaining its winding state by winding the synthetic resin pipe 1a cross-linked in the straight state. Thus, this long size water feeding pipe 1 is cross-linked in a state of extending the synthetic resin pipe 1a in a straight shape in the cross-linking process after the molding process, and a shape of its straight state is stored. Thus, even if the synthetic resin pipe 1a is wound in the winding binding process thereafter, its winding deformation is hardly formed. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
