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: manufacturing technology.

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, limited from below by working table, equipped with heating system and connected to lower transient table, mechanism for leveling powder with a drive, which enables to receive powder from supply bins, formation of powder layer on working table and discharge of powder excess into powder collection hoppers, and the ZnSe-glass cooling circuit on the side of the inner sealed chamber. Device is equipped with nitrogen cooling circuits of mechanism of powder leveling and optical part of pyrometer, circuit of air cooling of electric connectors, which are included in lower transition table and working table, and an additional cooling circuit for air of ZnSe-glass on the side of the laser-optical unit, each of which is made in the form of a system of interconnected flexible and/or rigid tubes, which supply cooling medium from the pneumatic system to zones of arrangement of corresponding devices.

EFFECT: possibility of temperature variation in the manufacturing chamber due to installation of cooling circuits.

1 cl, 9 dwg