| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and apparatus for heating a pipe mold efficiently to be good in durability. SOLUTION: The pipe mold heating apparatus has a member divided into at least two for covering the peripheral surface of the pipe mold, a metal piece which is held between the pipe mold and the member and in contact with the pipe mold by at least two lines, and a heat source for heating the member or the metal piece. The pipe mold is heated by moving the metal piece. COPYRIGHT: (C)2006,JPO&NCIPI |
