FIELD: molded products manufacture.
SUBSTANCE: invention relates to a technology for the manufacture of molded products from wood-polymer composites (WPC) by extrusion. The method includes the stage of mixing and drying WPC components using a mixer, further extrusion of molded products using a twin screw extruder at a temperature of 160-180°C, subsequent calibration and cutting of the profile coming out of the twin screw extruder into products, after mixing and drying the WPC components, agglomeration of the wood-polymer mixture using a granulator press at a temperature of the mixture supplied to the granulator press 75-90°C, humidity 1.0-5.0 wt. % and pressure 40-80 MPa.
EFFECT: invention provides an increase in productivity and operational characteristics of finished products on single-stage extrusion lines for the production of molded products from WPC.
1 cl, 1 tbl, 5 ex
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Authors
Dates
2022-10-11—Published
2022-03-22—Filed