Apparatus and method for forming a sealed outer ring for ceramic
regenerator
    6.
    发明授权
    Apparatus and method for forming a sealed outer ring for ceramic regenerator 失效
    用于形成用于陶瓷再生器的密封外圈的装置和方法

    公开(公告)号:US3938923A

    公开(公告)日:1976-02-17

    申请号:US466394

    申请日:1974-05-02

    IPC分类号: B28B1/26 B29C27/14

    CPC分类号: B28B1/26

    摘要: In the formation of cylindrically shaped heat regenerators from ceramic honeycomb structures for use in gas turbine engines, a gas-impervious seal of the peripheral honeycomb cells and a high strength outer ring are formed simultaneously in an apparatus which provides for surrounding the outer wall of the honeycomb structure with a castable ceramic composition suitable for forming the outer ring, contacting a peripheral area of the upper surface of the honeycomb structure defining a predetermined number of peripheral cell openings with a (different) ceramic slurry composition, evacuating the honeycomb cells whose openings are contacted with the slurry composition through corresponding openings in the lower surface of the honeycomb structure in order to promote flow of the slurry into the evacuated cells, thereby forming a gas impervious seal of these peripheral cells, while simultaneously vibrating the honeycomb structure and castable composition in order to promote flow and intimate contact of the castable composition with the outer wall of the structure, thereby to form an outer adherent layer of the castable composition on the wall of the structure. After drying, the honeycomb structure with the filled peripheral cells and the outer adherent layer of ceramic may be fired in the conventional manner to convert the structure to a unified ceramic regenerator having a sealed outer ring.

    摘要翻译: 在用于燃气涡轮发动机的陶瓷蜂窝结构体形成圆柱形的热交换器中,周边蜂窝单元的不透气密封和高强度外圈同时形成在一个装置中, 蜂窝结构,其具有适于形成外环的可浇铸陶瓷组合物,使蜂窝结构的上表面的周边区域与(不同的)陶瓷浆料组合物形成预定数量的外围电池开口,将其开口为 通过蜂窝结构体的下表面中的相应开口与浆料组合物接触,以促进浆料流入抽真空室中,从而形成这些周边细胞的不透气密封,同时使蜂窝结构和浇注组合物振动 c促进流动和亲密c 可浇注组合物与结构的外壁的接合,从而在结构的壁上形成可浇铸组合物的外部粘附层。 干燥后,具有填充的周边电池的蜂窝结构体和陶瓷的外部粘附层可以以常规方式烧结,将结构转变成具有密封外圈的统一的陶瓷再生器。

    Method for forming a sealed outer ring for ceramic regenerator
    8.
    发明授权
    Method for forming a sealed outer ring for ceramic regenerator 失效
    陶瓷再生器密封外圈形成方法

    公开(公告)号:US4200604A

    公开(公告)日:1980-04-29

    申请号:US614321

    申请日:1975-09-17

    IPC分类号: B28B1/26

    CPC分类号: B28B1/26

    摘要: In the formation of cylindrically shaped heat regenerators from ceramic honeycomb structures for use in gas turbine engines, a gas-impervious seal of the peripheral honeycomb cells and a high strength outer ring are formed simultaneously in an apparatus which provides for surrounding the outer wall of the honeycomb structure with a castable ceramic composition suitable for forming the outer ring, contacting a peripheral area of the upper surface of the honeycomb structure defining a predetermined number of peripheral cell openings with a (different) ceramic slurry composition, evacuating the honeycomb cells whose openings are contacted with the slurry composition through corresponding openings in the lower surface of the honeycomb structure in order to promote flow of the slurry into the evacuated cells, thereby forming a gas impervious seal of these peripheral cells, while simultaneously vibrating the honeycomb structure and castable composition in order to promote flow and intimate contact of the castable composition with the outer wall of the structure, thereby to form an outer adherent layer of the castable composition on the wall of the structure. After drying, the honeycomb structure with the filled peripheral cells and the outer adherent layer of ceramic may be fired in the conventional manner to convert the structure to a unified ceramic regenerator having a sealed outer ring.

    摘要翻译: 在用于燃气涡轮发动机的陶瓷蜂窝结构体形成圆柱形的热交换器中,周边蜂窝单元的不透气密封和高强度外圈同时形成在一个装置中, 蜂窝结构,其具有适于形成外环的可浇铸陶瓷组合物,使蜂窝结构的上表面的周边区域与(不同的)陶瓷浆料组合物形成预定数量的外围电池开口,将其开口为 通过蜂窝结构体的下表面中的相应开口与浆料组合物接触,以促进浆料流入抽真空室中,从而形成这些周边细胞的不透气密封,同时使蜂窝结构和浇注组合物振动 c促进流动和亲密c 可浇注组合物与结构的外壁的接合,从而在结构的壁上形成可浇铸组合物的外部粘附层。 干燥后,具有填充的周边电池的蜂窝结构体和陶瓷的外部粘附层可以以常规方式烧结,将结构转变成具有密封外圈的统一的陶瓷再生器。