Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(3), 13-22 | DOI: 10.11118/actaun201159030013
Abrasive and erosive wear of technical materials
- Ústav techniky a automobilové dopravy, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika
Operating reliability of agricultural, transport and construction machines is in a considerable degree influenced by corrosion and wear. These sorts of damage significantly influence the costs for the restoration of mechanical components, as well as their service and repairs. This article deals with comparing the abrasive and erosive wear of technical materials (soft steel, wear-resisting steel, ledeburitic cast-iron, cemented carbides). A test of the abrasive wear by means of bound particles was carried out on an apparatus with a corundum abrasive cloth. The erosive wear was made in a testing mechanism manufactured by the firm Kovo Staněk Ltd., which simulated the operating conditions by jetting with both spheroidal granulate and angular crushed material.
The comparative resistance against the abrasive wear of the tested materials varied by three degrees. The testing conditions and the working means affected not only the wear formulated in absoulute units (g, mm3), but also the proportional resistance against the wear, which could be changed by a degree. According to these results, appropriate materials for the inside lining of the working chambre and for the casting wheel paddles of the jetting appliance could be found.
Keywords: abrasive wear, erosive wear, laboratory test, operating test, abrasive cloth, jetting mechanism
Grants and funding:
This paper was written with co-operation with the firm Kovo Staněk, Ltd., Brumovice 412, 691 11.
Received: February 4, 2011; Published: June 14, 2014 Show citation
References
- BLAŠKOVIČ, P., BALLA. J., DZIMKO, M., 1990: Tribológia. ALFA, Bratislava, 360 s.
- ČERVENÝ, J., 2008: Teorie opotřebení - abrazivní a erozivní opotřebení lopatek míchadel. Povrcháři: online časopis, č. 4, s. 2-6.
- ČSN 01 5084 Stanovení odolnosti kovových materiálů proti abrazivnímu opotřebení na brusném plátně, 1974.
- FILÍPEK, J., ČERNÝ, M., 2007: Animace laboratorních zkoušek abrazivního opotřebení. Conference of MEMD, Smolenice, s. 1-7, ISBN 978-80-227-2708.
- HOUDKOVÁ, Š., ENŽL, R., BLÁHOVÁ, O., 2003: Žárové nástřiky. Dostupné na: http://www.kmm.zcu.cz/CD/index.htm[2010-11-22].
- LEGÁT, V. a kol.: Jakost, spolehlivost a obnova strojů. Dostupné na: http://www.scribd.com/doc/6854328/Pednaky-k-tisku-Pr05 [cit. 2010-11-22].
- POŠTA, J., VESELÝ, P., DVOŘÁK, M., 2002: Degradace strojních součástí. [Monografie]. ČZU, Praha, 67 s., ISBN 80-213-0967-9.
- SUCHÁNEK, J., 2006: Mechanismy erozivního opotřebení a jejich význam pro optimální volbu kovových materiálů v praxi. ČVUT, Praha, 28 s. ISBN 80-01-03562-X.
- SUCHÁNEK, J., KUKLÍK, V., ZDRAVECKÁ, E., 2007: Abrazivní opotřebení materiálu. ČVUT, Praha, 162 s. ISBN 978-80-01-03659-4.
- TRIMETA, s. r. o.: Dodavatel prvotřídních tryskacích materiálů. Dostupné na: http://www.trymeta.cz/dodavky.html[2010-11-22].
- VOTAVA, J., ČERNÝ, M., FILÍPEK, J., 2005: Vliv tepelného zpracování na abrazivní opotřebení. Acta of Mendel University of agriculture and forestry Brno sv. LIII, č. 5, s. 175-185. ISSN 1211-8516.
Go to original source... - VOTAVA, J., ČERNÝ, M., FILÍPEK, J., 2007: Abrazivní opotřebení plužních čepelí z ADI litiny. Acta of Mendel University of agriculture and forestry Brno sv. LV, č. 1, s. 173-182. ISSN 1211-8516. Go to original source...
This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY NC ND 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.