公开(公告)号：US20210246549A1

公开(公告)日：2021-08-12

申请号：US17265378

申请日：2019-07-24

Applicant: SAFRAN CERAMICS

Inventor： Franck LAMOUROUX ,  Rémy DUPONT ,  William ROS

IPC: C23C16/04 ,  C23C16/46

Abstract: A process for densifying annular porous substrates by chemical vapour infiltration, includes providing a plurality of unit modules including a support plate on which is formed a stack of substrates, the support plate including a central gas inlet opening communicating with an internal volume formed by the central passages of the stacked substrates and gas outlet openings distributed angularly around the central opening, and a thermal mass cylinder disposed around the stack of substrates having a first end integral with the support plate and a second free end, forming stacks of unit modules in the chamber of a densification furnace, and injecting into the stacks of unit modules a gas phase including a gas precursor of a matrix material to be deposited within the porosity of the substrates.

公开(公告)号：US20250109497A1

公开(公告)日：2025-04-03

申请号：US18838765

申请日：2023-02-16

Applicant: SAFRAN LANDING SYSTEMS ,  SAFRAN CERAMICS

Inventor： Matthieu CHAMPAGNE ,  Jeff ROUSTAND ,  Franck LAMOUROUX ,  Sébastien BERTRAND

IPC: C23C16/458 ,  C23C16/04 ,  C23C16/44

Abstract: A method for densifying porous annular substrates having a central passage by chemical vapor infiltration, the method including providing stacks of porous annular substrates, providing a plurality of individual modules including stacks disposed on a support plate having a perforated injection tube each mounted on a gas inlet opening, forming a stack of individual modules, aligning the individual modules of the stack in a sealed manner by means of an annular seal disposed between the injection tube of a second individual module and the gas inlet opening of a first individual module with which it cooperates, and injecting into the internal volume of each stack of porous annular substrates a gas phase including a gaseous precursor of a matrix material to be deposited within the porosities of the substrates.

公开(公告)号：US20250154072A1

公开(公告)日：2025-05-15

申请号：US18838794

申请日：2023-02-07

Applicant: SAFRAN CERAMICS

Inventor： Franck LAMOUROUX ,  Jean-François Daniel René POTIN

IPC: C04B35/628 ,  C04B35/80

Abstract: A removable tool for consolidation or densification in the gas phase of at least one fibrous preform configured to be arranged in an oven, the removable tool including a homogenization chamber including at least one gas inlet orifice and a depletion chamber including at least one gas outlet orifice, the removable tool further including a reaction chamber arranged between the homogenization chamber and the depletion chamber and configured to receive at least one fibrous preform, the reaction chamber being separated from the homogenization chamber and the depletion chamber by perforated plates.

公开(公告)号：US20250059100A1

公开(公告)日：2025-02-20

申请号：US18721428

申请日：2022-12-14

Applicant: SAFRAN CERAMICS

Inventor： Franck LAMOUROUX ,  Simon Lucien René THIBAUD

IPC: C04B35/628 ,  C04B35/80

Abstract: A load for placement in a chemical vapor infiltration consolidation or densification installation, the load including fibrous preforms disposed in a shaper for consolidating or densifying fibrous preforms in the gas phase, the shaper including a plurality of shaping housings, each shaping housing being formed by a first surface and a second surface facing each other and being intended to receive a fibrous preform, each first or second surface including retaining elements projecting from the surface and extending to an end face intended to be in contact with the fibrous preform, each shaping housing extending between at least one gas inlet and at least one gas outlet positioned between the first surface and the second surface of the housing, the shaper including a start plate, an end plate and one or more intermediate plates positioned between the start plate and the end plate.

公开(公告)号：US20240327299A1

公开(公告)日：2024-10-03

申请号：US18708915

申请日：2022-11-09

Applicant: SAFRAN CERAMICS

Inventor： Franck LAMOUROUX ,  Adrien DELCAMP

IPC: C04B35/622 ,  C04B41/45

CPC classification number: C04B35/62281 ,  C04B41/457 ,  C04B41/4584 ,  C04B2235/614 ,  C04B2235/6581

Abstract: A method for densification by Chemical Vapor Infiltration of a plurality of fibrous preforms arranged in the enclosure of a densification furnace, the method including at least the following procedures a) and b), each being repeated more than once: a) introducing a first gaseous phase, the thermal decomposition of which allows the matrix to form in the pores of the plurality of fibrous preforms; b) introducing a second gaseous phase while simultaneously placing the enclosure of the furnace under vacuum, such that the introduction of the second gaseous phase takes place at the same time as the expulsion of the first gaseous phase out of the enclosure, the temperature of the second gaseous phase being less than or equal to 25° C. when it is introduced into the enclosure of the furnace.

公开(公告)号：US20210261471A1

公开(公告)日：2021-08-26

申请号：US17267363

申请日：2019-08-12

Applicant: SAFRAN CERAMICS

Inventor： Franck LAMOUROUX ,  Rémy DUPONT ,  Sébastien BERTRAND ,  Stéphane Roger André GOUJARD ,  Matthieu CHAMPAGNE ,  Olivier CLAUSSE ,  Jean-Michel GARCIA ,  Jeff ROUSTAND

IPC: C04B35/83 ,  C04B35/628 ,  F16D69/02 ,  C23C16/04 ,  C23C16/455

Abstract: A method for densifying porous annular substrates by chemical vapor infiltration, includes providing a plurality of unit modules including a support tray on which substrates are stacked, the support tray including a gas intake opening extended by an injection tube disposed in an internal volume formed by the central passages of the stacked substrates, the injection tube including gas injection orifices opening into the internal volume, forming stacks of unit modules in the enclosure of a densification furnace and injecting, into the stacks of unit modules, a gas phase including a gas precursor of a matrix material to be deposited within the porosity of the substrates.