DDZ - Zverejnená dizertačná práca

Výskum trvanlivosti pracovných nástrojov mechanizmov využívaných pri zakladaní lesov a výchove lesného porastu

Autor
Škultétyová, Veronika
Školiteľ
Hnilica, Richard
Oponent
Kotus, MartinMessingerová, ValériaMüller, Miroslav
Škola
Technická univerzita vo Zvolene FT KVTMKv (FT)
Rok odovzdania
2020
Počet strán
80až 120 strán. s
Trvalý odkaz - CRZP
https://opac.crzp.sk/?fn=detailBiblioForm&sid=CBF19E20E3617CA9F14683802D00
Primárny jazyk
slovenčina

Typ práce
Dizertačná práca

Študijný odbor
2329 | výrobná technika

Dátum zaslania práce do CRZP
04.06.2020

Dátum vytvorenia protokolu
04.06.2020

Dátum doručenia informácií o licenčnej zmluve
28.08.2020

Práca je zverejniteľná od
ihneď

Elektronická verzia
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Forestry is characterized by a diversity of natural conditions, which need to be adapted to the selection and application of technological processes. The complexity of production conditions is the reason why production processes have been influenced by a high proportion of manual labor for much longer than in the industrial sphere. In the dissertation, we dealt with increasing the durability of tools used in forestry. These tools are mostly subject to abrasive wear during their work. At the beginning, we focused on analyzing the current state of the issue, which was the basis for further solutions. Of these options, we focused on increasing tool life by applying nine hard welds. We applied these hard welds to samples of materials from which the tools are made, as well as to the tools themselves. Using laboratory measurements, we determined the resistance of the samples to abrasive wear. The hardness test was performed by the Rockwell method, the resistance of the weld to abrasive wear was measured according to the GOST 23.208-79 standard, and the microstructure was also evaluated by light and electron microscopy. Subsequently, operational tests of tools with applied hardfacing were performed. The achieved results showed the suitability of the proposed solutions for increasing the durability of working tools used in the elimination of undesirable growths.

Verzia systému: 6.2.61.5 z 31.03.2023 (od SVOP)