FIELD: machine engineering.
SUBSTANCE: invention relates to a loading device (100) of an infiltration furnace reaction chamber for compacting stackable porous preforms (160-163) having a truncated cone shape by chemical infiltration method in the gas phase by a directed flow and an infiltration furnace (200) for compacting the mentioned stackable porous preforms (160-163). The mentioned device comprises a support pallet (110), the first stack having lower rings (140-144) with injection holes (1401; 1411; 1421; 1431; 1441), the second stack having upper rings (150-154). Each upper ring has outlets (1501; 1511; 1521; 1531; 1541) extending between the outer and inner circumferences of each of the upper rings; the first non-porous wall (130) which shape and dimensions are identical to the shape and dimensions of the porous preforms to be compacted (160 -163), located on the support pallet (110) inside the lower rings (140-144) of the first stack and extending between the support pallet and the upper ring located at the base of the second stack, and the second non-porous wall (170) which shape and dimensions are identical to the shape and dimensions of the porous preforms to be compacted (160 -163), extending between the lower ring (143) located at the top of the first stack and the upper ring (154) located at the top of the second stack. The mentioned furnace includes a reaction chamber (210), an inlet reactant gas pipe (221) located at the first end of the chamber and leading to a preheating zone (222) and an outlet pipe (231) located at the second end of the chamber opposite the first end, and the mentioned loading device (100) of the reaction chamber.
EFFECT: possibility to compact porous preforms in the form of a truncated cone, with high loading volume and with minimal gradients of compaction in the substrates.
11 cl, 7 dwg
