FIELD: process engineering.
SUBSTANCE: invention relates to extruder. Proposed extruder prepares moulding material by heating, mixing, melting and plasticising raw and comprises foam maker. Said extruder extrudes moulding material from screw end and comprises extrusion die arranged at screw end and moulding die arranged at extruder outlet. Note here that distribution grate is arranged at extrusion die outlet to create limiting force to counteract extruding force applied to moulding material extruded from screw end, hence to counteract the screw. Note here that core is arranged at extrusion die outlet to create limiting force to counteract extruding force applied to moulding material extruded from screw end, hence to create counter pressure at extrusion die outlet.
EFFECT: higher quality of foamed extruded product.
6 cl, 15 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MOULDING MATERIAL FOR EXTRUSION WITH FOAMING, METHOD OF ITS PRODUCTION, MOULDED WOOD-FILLED FOAM PLASTIC MADE FROM SAID MOULDING MATERIAL AND METHOD AND DEVICE FOR PRODUCING OF SAID FOAM PLASTIC | 2010 |
|
RU2530047C9 |
| METHOD FOR PRODUCTION OF PRODUCTS OF POLYMER WASTE BY EXTRUSION-ROLLING-MOLDING METHOD AND INSTALLATION FOR ITS IMPLEMENTATION | 2021 |
|
RU2782067C2 |
| FIBRE-REINFORCEMENT OF FOAM MATERIALS, CONSISTING OF INTERCONNECTED SEGMENTS | 2015 |
|
RU2705089C2 |
| FOAMED POROUS DIAPHRAGMS MADE OF THERMOPLASTIC POLYMERS AND METHOD AND DEVICE FOR MAKING SUCH DIAPHRAGMS | 1999 |
|
RU2203127C2 |
| FOAMED POLYSTYRENE SHEET, METHOD FOR THERMAL FORMING OF DEEP DRAWN PRODUCTS FROM FOAMED THERMOPLAST AND DEEP DRAWN PRODUCT MANUFACTURED FROM FOAMED THERMOPLASTIC SHEET | 1994 |
|
RU2133671C1 |
| METHOD AND DEVICE FOR PREPARATION OF EXTRUDED FOOD AND FODDER PRODUCTS | 2015 |
|
RU2581223C1 |
| MOULDED PRODUCT OF THERMOPLASTIC AND METHOD FOR ITS MANUFACTURE | 1994 |
|
RU2143978C1 |
| FOAMED POLYPROPYLENE BEADS, A METHOD FOR PRODUCING FOAMED POLYPROPYLENE BEADS, MOLDED ARTICLES OBTAINED FROM FOAMED POLYPROPYLENE BEADS, AND A METHOD FOR PRODUCING SUCH MOLDED ARTICLES | 2021 |
|
RU2803570C1 |
| EXTRUDER | 2006 |
|
RU2314918C1 |
| METHOD OF PRODUCING MOULDING COMPOUND | 2007 |
|
RU2437757C2 |
