FIELD: process engineering.
SUBSTANCE: invention relates to making articles by extrusion. Proposed device comprises cartridge with variable-section die carrier, sprocket arranged there above and made up of cylindrical element with central and peripheral bores, and needle screwed in central through bore, and male die. Note here that claimed device is provided with the set of replaceable needles with identical diameter of the part to be screwed in sprocket central bore and different diameters of their working part, located under thread, depending upon preset thickness of extruded tube. Note also that peripheral bores are arranged around sprocket central bore at equal spacing while larger-diameter sprocket central bore exceeds that of peripheral bore. Said peripheral bores are threaded.
EFFECT: expanded process performances, higher quality of extruded articles.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR EXTRUSION OF POLYMER AND GRAPHITE COMPOSITION | 2015 |
|
RU2595679C1 |
| POWDER COMPACTION DEVICE | 2015 |
|
RU2614279C1 |
| HOLLOW ITEMS PRESSING DEVICE | 2011 |
|
RU2469859C1 |
| METHOD OF METALS PRESSING AND DEVICE FOR ITS IMPLEMENTATION | 2006 |
|
RU2329108C2 |
| APPARATUS FOR MOULDING PLASTICIZED METAL POWDERS THROUGH EXTRUSION NOZZLES | 0 |
|
SU1475771A1 |
| DIE FOR CUBIC STRAINING | 0 |
|
SU1593774A1 |
| METHOD FOR COLD DIE-FORGING OF NUTS | 0 |
|
SU1777571A3 |
| POWDER COMPACTION DEVICE | 2011 |
|
RU2460642C1 |
| ABRASION-POWDER CLEANING OF LONG CYLINDRICAL BLANKS OF SCALE AND DEVICE TO THIS END | 2011 |
|
RU2527556C2 |
| TOOL UNIT FOR EXTRUSION OF ARTICLES | 0 |
|
SU1803216A1 |
