| 摘要 |
FIELD: technologies for testing properties of materials. ^ SUBSTANCE: in method for determining compositions of friable condensed-filled-separated type systems in fractions with sizes of cores D1>D2>à>Dn-1>Dn when D2/D1, D3D2,à,Dn/Dn-1 greater than 0.155, d1>d2>à>dn-1>dn when d2/d1, d3/d2,à,dn/dn-1 less than 0.155, where Dn>d1, cores material denseness is determined, as well as volumetric mass, emptiness value and average fraction cores size, compaction level value is calculated, composition of mixture of condensed type is determined on basis of fractions with core sizes D, emptiness value and average cores size of said mixture, value of grade of filling of empty spaces of mixture with fractions with core sizes d is calculated, value of separation level of condensed mixture by fractions with core sizes d is calculated, and compositions of friable systems of condensed-filled-separate type are determined from formulae in following order: , m3, where Vmx - volume of mixture of condensed type on basis of fractions with core sizes D, m3; alpha - coefficient for condensed type mixture separation by fractions with core sizes d; Vd - volume of fraction with sizes of cores d, m3; Y - level of filling of empty spaces of compacted type by cores of fractions with sizes d, limits of value measurement being 0<Y<=1; Vemp - condensed type mixture emptiness value - relation of empty spaces volume to mixture volume, Dav.mx2 - average size of cores in a mixture. ^ EFFECT: higher precision, lower laboriousness. ^ 4 ex |
