| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for radially enlarging a normal temperature shrinkage type coating material capable of conducting a series of steps of covering an outer periphery of a core material for radially enlarging supporting a coating material by radially enlarging in addition to radially enlarging the coating material on the core material without material or structure of the core material and a radially enlarging jig. SOLUTION: Since a coating material 1 does not slide on an outer periphery of a core material 13 for radially enlarging supporting in the case of coating the periphery of the material 13 with the material 1 because a radially enlarging jig 10 removably contains the material 13, the periphery can be coated irrespective of the material and structure of the material 13. Since the jig 10 can contain the material 13, the material 13 is previously contained in the jig 10, and the material 13 is passed through the material 1 to radially enlarge and coat with the material 1 at once, thereby improving operability and reducing the production cost.</p> |
