| 摘要 |
<p>A T-shaped film extrusion die (1) for use in extrusion forming a film of a synthetic resin, comprising a manifold (2), a slot-like land (3), lips (4), inner deckles (5) and inner deckle rods (6), characterized in that heat pipes (7) are provided or disposed on both sides of said manifold (2) so as to extend in parallel with each other in the lengthwise direction of said T-shaped die (1), and at least a part of the outer side surface of each of said heat pipes is exposed to the interior of said manifold (2) over the whole length thereof. <IMAGE></p> |
