| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a production process of annular rubber material easy of controlling weight and easy of responding to a size change. <P>SOLUTION: The production process of an annular rubber material used as a material for molding a molded object by compression molding includes a first step to extrude a rubber material 11 in a string shape by an extruder 30, a second step to multiply wind the extruded string shaped rubber material 11, and a third step to separate the string shaped rubber material 11 extruded from the extruder 30 and the multiple wound rubber material by cutting the rubber material 11 extruded in the string shape. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
