Properties and characteristics of recycled garnet abrasives for AWJ

0478118 - ÚGN 2018 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Martinec, Petr - Hlaváček, Petr - Ruppenthalová, Lucie - Sitek, Libor
Properties and characteristics of recycled garnet abrasives for AWJ.
Vodní paprsek 2017 - výzkum, vývoj, aplikace. Ostrava: Ústav geoniky AV ČR, 2017 - (Klichová, D.; Sitek, L.), s. 101-125. ISBN 978-80-86407-71-5.
[Vodní paprsek 2017 - výzkum, vývoj, aplikace. Lednice (CZ), 13.09.2017-15.09.2017]
Grant CEP: GA MŠMT ED2.1.00/03.0082; GA MŠMT(CZ) LO1406; GA TA ČR(CZ) TA04020986
Institucionální podpora: RVO:68145535
Klíčová slova: garnet * abrasive water jet * recycled abrasives * index of cutting efficiency of abrasive * microhardnes
Obor OECD: Mineralogy

The use of recycled garnet abrasive from sludge after cutting materials is a current
problem. The behavior of individual garnet abrasives in the AWJ process depends
on the geological origin of the garnets, which also affects all the material
characteristics of the garnet recyclate. The parameters of the BARTON HPX80 and
GMA 80 abrasive inputs and their recycled products were compared: mineralogical
type, apparent density, granularity, grain shape and mineralogical purity,
microhardness data and the degree of damage to the garnet grains. All individual
parameters of abrasives and their recyclates are reflected in the index of cutting
efficiency of abrasive. The effect of abrasive material properties on cuttability of
abrasives is synergistic. The new parameters in the evaluation of abrasives are
micro-hardness (brittleness criterion), specific surface and pore size distribution
(internal grain damage criterion).
Trvalý link: http://hdl.handle.net/11104/0274329