INFLUENCE OF THE DEGREE OF REINFORCEMENT OF DIAMOND POWDER OF FUNCTIONAL ELEMENTS WITH KAM FOR CHARACTERISTICS OF ROLL DESTRUCTION PRODUCTS

Abstract

The results of studying the effect of the structure of a composite diamond-containing material (KAM) on a metal bond, obtained by
the method of resistive electric sintering under a pressure of up to 400 MPa, on the intensity of its wear when turning sandstone from the
Torez deposit are presented. Tests of KAM elements for wear resistance of diamond-containing functional elements with different degrees of
reinforcement with diamond powder were carried out on an experimental stand. The sludge was investigated by particle size analysis,
chemical gravimetric method, magnetic fractional analysis, system-analogue method. The elemental composition of the products of
destruction of rocks has been determined. It has been established that a decrease in grain size and concentration leads to a decrease in the
average size of sludge particles; sludge element composition - Si, Cl, K, Ca, Ti, Fe, Ni, Zn, Sn, Zr. The total content of Ni and Sn varies in the
range from 0.048 to 0.741 vol.%. The specific magnetic susceptibility of the cuttings varies in the range (1.81–72.57) · 10-8 m3
/ kg. The
influence of changes in the concentration and grain size of the reinforcing component correlates with changes in the magnetofractional and
elemental composition and the intensity of bond wear. The results of the study of sludge and the intensity of wear of elements gives a more
complete picture of the mechanism of wear of the KAM, allows one to quantitatively evaluate their wear resistance