The results of theoretical and experimental research of co-extrusion process in extrusion head for two-layer polymeric pipes manufacturing with the use of ultrasonic vibrations are being considered. A mathematic model for calculation of flow rate characteristics according to molding channel geometry and ultrasonic vibrations parameters is being presented. A developed extrusion head structure for manufacturing of two-layer polymeric pipes with the use of ultrasonic vibrations is being presented.
расплав, полимер, соэкструзия, двухслойные трубы, ультразвуковые колебания, melt, polymer, co-extrusion, two-layer pipes, ultrasonic vibrations
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