Anisometric compressed and bonded multilayer knitted wire mesh composites
    34.
    发明授权
    Anisometric compressed and bonded multilayer knitted wire mesh composites 失效
    不平衡压敏和粘结多层复合丝网复合材料

    公开(公告)号:US3690606A

    公开(公告)日:1972-09-12

    申请号:US3690606D

    申请日:1968-05-27

    Applicant: PALL CORP

    Inventor: PALL DAVID B

    Abstract: Anisometric compressed and bonded knitted wire mesh composites are provided which comprise a plurality of sheets of knitted wire mesh, superimposed at random orientation with respect to each other, compressed or densified to a voids volume within the range from about 10 to about 90 percent, and bonded together. The sheets are taken in sufficient number, usually at least five and preferably 10 or more, and as much as 1,000 or more, to form a self-supporting relatively non-resilient composite of high tensile strength and high breaking strength having an average pore diameter of less than 200 microns, and preferably less than 100 microns, that is relatively uniform in any unit area of the surface, and having an anisometric porosity, the through pores extending crosswise of the sheet greatly exceeding in number the through pores extending laterally of the sheet, which latter pores can be reduced virtually to zero in a highly compressed composite. The composite is formed by superimposing a plurality of knitted wire mesh sheets, annealing the composite to avoid wire breakage during later processing, compressing the composite to the desired density and anisometricity by application of pressure in a direction approximately perpendicular to the plane of the layers of the composite, and bonding the sheet layers and the wire filaments of the sheets together at their points of contact and/or crossing. The bonding holds the composite at the selected density, prevents relative movement of the wires in the composite, and in conjunction with the multilayer structure imparts the self-supporting nonresilient characteristic, together with high tensile strength and high breaking strength.

    Abstract translation: 提供了不对称的压缩和粘合的针织线网复合材料,其包括多个针织丝网片,其相对于彼此以随机取向叠加,压缩或致密化至约10至约90%范围内的空隙体积,以及 结合在一起 采取足够数量的片材,通常为至少五个,优选为10个或更多个,多达1,000个或更多个,以形成具有高拉伸强度和高断裂强度的自支撑相对非弹性的复合材料,其具有平均孔径 小于200微米,优选小于100微米,其在表面的任何单位面积中相对均匀,并且具有不等轴孔隙率,片材横向延伸的通孔在数量上大大超过在侧面延伸的通孔 片材,后者的孔可以在高度压缩的复合材料中实际上降低到零。

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