| 摘要 |
The invention describes an improved process for the sealing of alternating flutes of "honeycomb' designed filters to be made after construction, or fabrication, of the basic filter structure, rather than during construction, as is shown in the prior art. The method seals both sides of the primary flutes as is typically done for one side in the prior art and then the media is rolled into a honeycomb shape so that secondary flutes, open on both sides of the roll are created. The roll is vertically orientated and then the lower end is immersed into a sealing compound to such a depth which will cause the sealing compound to travel up into the lower portion of the roll to a height above the height of the lower seal for the primary flutes. The sealing compound is allowed to cure, effectively sealing the secondary flutes. The roll is then cut along a line located above the height of the lower seal for the primary flutes and before the top surface of the sealing compound in the secondary flutes. When cut, a fully functional cylindrical honeycomb filter structure is formed having, on one side primary flutes sealed and secondary flutes open, and on the other side primary flutes open and secondary flutes sealed. In another embodiment, successive layers of filter media are aligned in parallel to form a rectangular, or panel, shaped filter, whose, flutes are sealed in a similar manner.
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