METHODS OF PLUGGING HONEYCOMB BODIES

    公开(公告)号:US20210268418A1

    公开(公告)日:2021-09-02

    申请号:US17257400

    申请日:2019-06-26

    Abstract: A method of plugging a honeycomb body is disclosed herein, the method comprising: applying a mask layer to a honeycomb body comprising a plurality of channels; forming a plurality of holes in the mask layer such that the plurality of holes are aligned with the plurality of channels; positioning a nozzle defining an opening proximate the mask layer; moving at least one of the nozzle and the honeycomb body relative to one another; and passing a plugging cement through the opening defined by the nozzle against the mask layer such that the plugging cement passes through the plurality of holes in the mask layer and enters the plurality of channels of the honeycomb body.

    ROLLER DRUM PLUGGING OF HONEYCOMB BODIES

    公开(公告)号:US20210180489A1

    公开(公告)日:2021-06-17

    申请号:US17257384

    申请日:2019-06-26

    Abstract: A method of plugging a honeycomb body is disclosed herein, the method comprising: applying a mask layer to the honeycomb body defining a plurality of channels, wherein the mask layer defines a plurality of holes aligned with the plurality of channels; rotating a roller drum; moving the honeycomb body over the roller drum to define a nip between the roller drum and the honeycomb body; and inserting a plugging cement in the nip between the roller drum and the mask layer such that the roller drum forces the plugging cement through the plurality of holes of the mask layer into the plurality of channels of the honeycomb body.

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