Volzhskiy, Vologda, Russian Federation
Russian Federation
Silicon carbide black grinding powders 54CF180-F36, mass-produced at Volzhsky Abrasive Plant are studied. Powders are screened into fractions according to GOST R 52381. Measurement of a grain width of each fraction was carried out by means of a photometric method using specially developed soft-ware. For the vast majority of fractions the grain width follows the normal distribution law. The deviation of the grain width from the normal law can be observed at the fractions settled on the second sieve and the pallet. With decreasing the nominal mesh size of a pass sieve in each grit size the arithmetic mean of grain width of the main fraction decreases, dispersion reduces from the fraction settling on the second sieve to the fourth and increases at the fraction settling on the pallet. In case of the identical mesh size of a pass sieve the mean and dispersion of grain width fraction increase with grinding powder grit increase. For each grit size the functional dependences of the mean and dispersion of grain width fraction on a mesh size of a pass sieve are established.
black silicon carbide, grit size, fraction, grain width, normal distribution, mean, dispersion, mesh size of a sieve.
1. Abrasive and diamond processing of materials. Reference Book. Under the editorship of the D. Eng., Prof. A.N. Reznikov. - M, "Mechanical engineering", 1977.
2. Design bases and manufacturing techniques of abrasive and diamond tools / V.N. Bakul, etc. – M.: Mechanical engineering, 1975. – 296 p.
3. Koshin, A.A. Investigation of granulometric structure and microgeometric indicators abrasive grain grinding wheels, applied in rough grinding / A.A. Koshin, A.V. Sopeltsev // Bulletin of the Southern Ural State University. Series: Mechanical engineering. – 2010. – №. 10 (186). – P. 77-82.
4. Nosenko, V.A. Grinding technology: Monograph / V.A. Nosenko, S.V. Nosenko. – VPI (branch) of VSTU. – Volgograd, 2011. – 424 p.
5. Nosenko, V.A. Determining the pass and non-pass size of grain width in samples when scattering grinding powder 54CF46 in test sieves / V.A. Nosenko, A. A. Aleksandrov // Bulletin of Rybinsk State Aviation Technological Academy named after P.A. Solovyov. – 2014. – № 1. – P. 44-48.
6. Nosenko, V.A. Statistical parameters of the geometrical grain sizes of microgrinding powder of silicon carbide / V.A. Nosenko, I.A. Makushkin, A.A. Shegay // Proceedings of VSTU. Series "Progressive Technologies in Mechanical Engineering". Issue 7: Inter-College Scientific Proceedings / VSTU. – 2011. – № 13. – P. 32-34.
7. Nosenko, V. A. Grinding technology: Monograph / V.A. Nosenko, S.V. Nosenko. – VPI (branch) of VSTU. – Volgograd, 2011. – 424 p.
8. Tymoschuk, E.I. Use of laser diffraction method for controling the particle sizes of fillers and press powders in production of fine-graded graphites: Thesis for Can.Eng. Degree – Moscow, 2015. – 148 p.
9. Gomez, V.A.O. Effect of abrasive particle size distribution on the wear rate and wear mode in micro-scale abrasive wear tests/ V.A.O Gomez et al. // Wear, 2015. – V. 328-32– P. 563-568.
10. Mgeladze, V.F. Dependence of a single grain average volume of the main fraction on a mesh size of the detaining sieve / V.F. Mgeladze, I.V. Lavrov // Abrasives. – 1971. - №. 1. – P. 1-4.
11. Azamatov, F.L. Investigation of a particle form in products of material classification based on size / V.F. Azamatov // Abrasives. – Issue 7. – 1972. – P. 6-9.
