DEVICE FOR OBTAINING ARTICLES FROM HIGH-TEMPERATURE POLYMERS BY SELECTIVE LASER SINTERING Russian patent published in 2020 - IPC B22F3/105 B29C64/141 B29C64/20 B33Y30/00 

FIELD: polymers; lasers.

SUBSTANCE: invention relates to production of articles from powder of high-temperature polymers by selective laser sintering. Device comprises laser-optic assembly, separated from it by ZnSe glass inner sealed chamber with installed in it pyrometer and system for heating of applied layer of powder, working table built into plate of application of layers of powder and moving inside replaceable production bin, lower transition table, powder leveling mechanism, cooling circuit of ZnSe glass on the side of inner sealed chamber, rod for movement of lower transition table, cooling circuits of water for application of powder layers, rod for movement of lower transition table, plates of clamping device of replaceable bunker, a pyrometer case and a flange of a laser-optical unit cartridge, on which a protective ZnSe glass is mounted. Device also comprises cooling circuit by nitrogen of mechanism of powder leveling mechanism and optical part of pyrometer, circuit of air cooling of electric connectors of transient table and working table, cooling circuit of ZnSe glass air from side of laser-optical unit.

EFFECT: possibility of temperature variation in sealed production chamber by means of installation of additional cooling circuits.

1 cl, 9 dwg