METHOD OF PRODUCING ARTICLES FROM POWDER POLYMER MATERIALS (VERSIONS) Russian patent published in 2010 - IPC B29C43/56 

FIELD: process engineering.

SUBSTANCE: invention relates to powder metallurgy and can be used for development of new production processes. In compliance with the first version, proposed method comprises cold pressing of biller from powder polymer materials, their sintering at the temperature lower than their fusion temperature followed by curing at sintering temperature unless complete heating over their entire volume and cooling. Note here that sintering temperature does not exceed 0.66 of the polymer melting point. In compliance with the second version, proposed method comprises mixing of at least two different melting point polymers, cold pressing of preforms, and their sintering at the temperature lower than their fusion temperature followed by curing at sintering temperature unless complete heating over their entire volume and cooling. Note here that sintering temperature does not exceed 0.66 of the melting point of more low-melting polymer. Sintering and cooling of preforms is performed in closed mold or in open air.

EFFECT: reduced material input and power consumption.

8 cl, 2 dwg