METHOD FOR DENSIFICATION BY CHEMICAL VAPOUR INFILTRATION

    公开(公告)号:US20240327299A1

    公开(公告)日:2024-10-03

    申请号:US18708915

    申请日:2022-11-09

    申请人: SAFRAN CERAMICS

    IPC分类号: C04B35/622 C04B41/45

    摘要: 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.

    Recycling waste refractory material

    公开(公告)号:US12042801B2

    公开(公告)日:2024-07-23

    申请号:US17389291

    申请日:2021-07-29

    摘要: Disclosed are systems and methods for refractory recycling that result in refined individual refractory components from a network of aggregate refractory components based on a fragmentation process. In one embodiment, a network of refractory aggregates is crushed and deposited into a refiner machine. The refiner machine includes a blast chamber that houses a projecting mechanism. The deposited aggregate material is propelled from the projecting mechanism at a critical velocity. Upon impact with an inner lining of material within the blast chamber, contaminant particles can fracture apart from the deposited aggregate material, leaving a refined individual refractory component.