FIELD: methods for manufacture of salient filter elements from fibrous materials, for instance, from glass fiber. SUBSTANCE: method for manufacture of salient filter elements includes molding of glass fiber salient filter element with the help of two network molds with salient surface, separation of the filter element from molds and its subsequent treatment. Prior to molding of salient element, flat glass fiber sheet is formed and placed between network molds, molds are moved to bring in contact of mold salient surface with sheet surface. Free volume is filled with fluid containing binding agent. Salient element is molded by simultaneous bringing of vacuum to the molds and their drawing together to form filter element of the preset thickness. EFFECT: higher productivity of the process and improved quality of filter elements. 2 cl, 6 dwg
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Authors
Dates
1996-06-10—Published
1990-04-28—Filed