| 摘要 |
PURPOSE:To provide a metal mold for extrusion molding of a synthetic resin sheet wherein change of a clearance of a resin passage parallel part (a land) in changing a product sheet thickness can be easily carried out in sufficiently short time, and the clearance can be set with hight precision. CONSTITUTION:A metal mold is divided into an upper part and a lower part. A spacer 2 setting a clearance of a parallel part (a) is put between mated faces of the metal molds 11, 12 having a resin passage consisting of a resin inflow port 13, a manifold 4, and the parallel part (a), between the upper and lower parts. |
