| 摘要 |
PROBLEM TO BE SOLVED: To provide an extrusion molder controlling variation of the thickness of moldings. SOLUTION: The extrusion molder has an extruding machine 1 extruding a heated resin and a circular die 2 which forms a super-engineering plastic, e.g. PES, supplied from the extruding machine 1 into a cylindrical shape and extrudes the resultant body. The circular die 2 has an outer cylindrical portion 3 and an inner cylindrical portion 4, and the inner cylindrical portion 4 has heaters 10 and 11 as a heating means. COPYRIGHT: (C)2008,JPO&INPIT |
