POROUS ARTICLE SEALING SYSTEM Russian patent published in 2012 - IPC C23C16/44 

FIELD: machine building.

SUBSTANCE: at least, first set of porous substrates is arranged in first reaction chamber. Note here that packs of porous substrates arranged along periphery of reaction chamber represent uncompacted porous substrates, partially compacted porous substrates of combination of both aforesaid substrates. One or several packs of partially compacted substrates are located at central part. at least, first set of porous substrate pack set is compacted by chemical infiltration of gas phase. Arrangement and alternation of uncompacted porous substrates and partially compacted substrates allow using thermal characteristics of partially compacted porous substrates for better distribution of heat flow in CVI-furnace chamber.

EFFECT: better quality of compaction, higher efficiency of process.

10 cl, 29 dwg, 4 tbl, 4 ex