| 摘要 |
1,208,964. Centripetal extruders. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. 11 Oct., 1968 [12 Oct., 1967], No. 48372/68. Heading B5A. The centripetal or rotary plate extruder described in Specification 1,107,487 is modified by a widening of the shear gap, defined between cavity 6 in stator 2 and the adjacent face of rotor 3, around and adjacent the extrusion orifice. Such widening facilitates the production of extrudate having a relatively large crosssection, and is formed by a concave hollowing 15 in rotor 3, which, as shown, accommodates blades 17, and a hollowing in stator 2 which accommodates blades 16. The rotor and stator may be provided with grooves as described in Specification 1,201,697.
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