| 摘要 |
An apparatus for continuously extruding metals by moving a channel wall in a wheel to frictionally urge the metal to an extrusion opening and then to a shaping die. An extrusion passage with substantially parallel walls having a length at least equal to the transverse dimensions of the passage is provided between the extrusion opening in the channel and a wider space. The extrusion passage merges without sudden change of the transverse dimensions gradually into the wider space having a central flow axis for the metal substantially in line with the central flow axis of the passage.
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