FIELD: process engineering.
SUBSTANCE: invention relates to production of articles from polymers and may be used in petrochemical industry for making composite profile rack. Extrusion head comprises split casing consisting of four sections. Recess for coolant circulation is arranged at the center between two sections. Note here that said sections compose two forming channels communicated with feed channel. Note here that forming channels feature composite profile sections with symmetric recess and ledges of triangular and ellipsoidal surfaces that form rack top surface. Cylindrical rods are fitted at the points of recesses in forming channels.
EFFECT: higher efficiency and quality.
2 dwg
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|---|---|---|---|
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