| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an apparatus for extrusion forming which can make a rubber roll and a rubber tube of uniform composition having no joint mark. SOLUTION: In an apparatus for extrusion forming, rubber compounds are joined together in the shape of a cylinder and then a cylindrical rubber compound thus prepared is pressure-formed by a die part 27, so as to form a rubber roll of a single-layer or multiplayer rubber roll. In this apparatus, a rubber compound fractionizing means 17 which has a large number of through holes 19 and fractionizes the cylindrical rubber compound by passing it through the through holes 19 is disposed between a point where the compounds are joined together cylindrically and the die part 27.</p> |
