| 摘要 |
<p>An extrusion die 2 for manufacture of polymeric forms which includes a core section 56 and a cope section 58. The sections define a generally frusto-conical polymer compression chamber 62 uninterrupted by die elements having a single entry port or sprue 50. Means for adjusting the size and volume capacity of the compression chamber 66 are provided to control polymer flow through the orifice outlet 64 of the die. The extrusion die allows the processing of both narrow and broad molecular weight polyethylene materials and other polymerics.</p> |
