16 KB181 KB15 KB200020262000Grizelj, BrankoMarušić, VlatkoVitez, Ivanletnik:344 straništevilka:6str. 429-432ISSN:1580-2949COBISSID:233823URN:URN:NBN:SI:doc-UVXZGXZGenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijeabrazijaboriranjecementiranjeodpornost proti obrabiInvestigation of the abrasive wear resistance of carburised and boron-enriched protective layers exposed to different stresses| Raziskava odpornosti naogljičenih in boriranih slojev proti abrazivni obrabi zaradi različne obremenitve|The possibility of using boron-enriched protective layers instead of conventional carburised layers is investigated. Experimental investigations have been carried out on worm presses for oil extraction. It was found that the operation of worm presses with boron-enriched layers, although having higher hardness values, display lower wear and tear resistance compared with those of carburised components. The conclusion is that the wear of protective layers exposed to abrasive action under conditions of changing pressure and abrasive action depends on the hardness of the surface layer, on the quality of the underlayer, and the level and type of contact pressure on the mechanical componentRaziskana je uporaba boriranih namesto konvencionalno cementiranih slojev v polžastih stiskalnicah za ekstrakcijo olja. Ugotovljeno je, da deli z borirano površino, ki imajo večjo trdoto, imajo manjšo odpornost proti obrabi in luščenju kot deli s cementirano površino. Zaključek je, da je obraba površinskih slojev, ki so obremenjeni na abrazijo v pogojih menjajočega se pritiska in abrazivnega učinka, odvisna od trdote površinskega sloja, od kakovosti podsloja ter od vrste in velikosti pritiska na strojni delTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije