Densification characteristics of permeable materials from continuous metal fibers

The expression for the contact pressing of fiber materials from discrete fibers can be employed also for describing the pressing of a pack of woven screens. It is demonstrated for the first time by experiment that, in accordance with the analytical premises underlying the derivation of M. Yu. Bal'shin's contact pressing equation, the compressibility of a porous fiber material with an ordered structure is independent of the diameter of its fibers. In a fiber material from a bound screen semifinished product (in contrast to a material from discrete fibers), because of its prior processing, the distribution of fibers throughout the material and its actual structure have an ordered character. Single-wire and wire-yarn screen semifinished products can be employed. With the latter, increasing the number of wires in a yarn increases the length of the fiber portions located between contact points and hence improves the compressibility of the porous material.