Method and apparatus for selectively charging honeycomb structures.

摘要

A mask (20) is disclosed for charging flowable materials into selected cells of a honeycomb structure (21). The mask comprises a solid body having a number of openings (30) extending therethrough which are spaced to coincide with the open ends of the selected cells exposed at the structure's end face, after the mask is positioned across the end face, the flowable material being charged through the openings (30). A rigid plate having a number of bores therethrough may be provided for charging a plastically formable plugging material into a honeycomb structure in the fabrication of solid particulate filter bodies and other selectively manifolded structures. As an alternative, a thin transparent polyester film may be attached to an open surface of a honeycomb structure and openings melted therethrough.