| 摘要 |
<p>An extrusion molding process including the steps of: i) extruding a material through an extruding die (1) into a tubular molding (5), ii) driving two clamping devices (4) to clamp the tubular molding (5) at different elevations, causing an air-tight space to be formed within the tubular molding, iii) closing two symmetrical halves of a molding die (3) on the tubular molding (5) between the clamping devices (4) and simultaneously lowering one clamping device (4) to stretch the tubular molding downwards, causing the tubular molding to be compressed in a die cavity (31) between the two symmetrical halves of the molding die (3) and molded into the desired finished product; and iv) opening the molding die (3) to remove the finished product and returning the clamping devices (4) to their former positions.</p> |
