| 摘要 |
A method and various forms of apparatus are disclosed relating to the fabrication of solid particulate filter bodies (21) and other honeycombed structures, in which the cells (22) are selectively charged with a plugging or other flowable material (34). A solid covering (28), preferably being an adhesive-backed transparent thermoplastic film such as polyester, is applied over each of the end faces (23, 24) of the honeycomb structure. Openings (29) are formed through the covering (28), preferably by melting the thermoplastic film. The sealing or other flowable material (34) is charged through the openings (29) formed in the covering (28) into the ends of the underlying cells (22). …<??>A porous walled honeycomb structure (21) having coverings (28) with selective openings (29) adhered to its end a faces is itself useful as a solid particulate filter. A more substantial solid particulate filter body can be formed by charging a more durable sealant (34) through the openings to form plugs (40) and by removing the coverings (28) afterwards. …<??>An automated method and apparatus for forming the openings (29) through the covering (28) is described, comprising an image analyser (102), which examines the structure's surface and emits signals to a jig (10) for precise opositioning of a tool (100), which forms the openings (29) through the covering (28). …<??>Other ancillary apparatus and methods described include:- a double-headed press (70) for simultaneously charging ceramic cement or other flowable materials, into both end faces (23, 24) of a honeycomb structure; tools (130, 140) for forming openings, comprising a plurality of elements for forming openings; and a dispenser (113, 114) for automatically applying a preformed flexible covering, such as a polyester film, to an end face of a honeycomb structure. |
