| 摘要 |
The invention concerns an extruder (1) with a shaping device (3) which has at least one gauging device (9) made up of in particular several gauging tools (24, 31 to 33) located in succession in the extrusion direction (arrow 7). The gauging device (9) and/or tools (24, 31 to 33) have cooling channels (49) through which a tempering medium (50) flows. The shaping device (3) has shaping surfaces designed to be placed against the extrusion (6) passing between them. In addition, located at least between a die (8) in the shaping device (3) and the gauging tool (24) immediately following it in the extrusion direction (arrow 7) and/or between the first gauging tool (24) and at least one other gauging tool (31, 32, 33) is a sealing device which seals off the external surfaces (48) of the extrusion (6) from the surrounding atmosphere as the extrusion passes through, forming a series of gaps (38 to 41). |
