| 摘要 |
<p>A method of plugging honeycomb cells (12) involves providing a honeycomb having an inlet end and an outlet end and a multiplicity of cells (12) extending from inlet end to outlet end, and introducing the sealant material (16) into pre-selected honeycomb cell openings by capillary action to form a plug on said pre-selected cell openings. The sealant can also be thermoplastic polymer preform having sections corresponding to the cell openings on a given surface of a honeycomb. The preform is positioned on the honeycomb surface having the pre-selected cell openings so that the perform is inserted into the pre-selected cell openings. The pre-selected cell openings are heated to allow the preform to deform into a thermoplastic sealing material and bond to inside walls of the pre-selected cell openings, to produce a plugged honeycomb with plugs securably positioned into the selected cell openings.</p> |
