Usage of abrasion-resistant materials in agriculture/Vyuziti oteruvzdornych materialu v zemedelstvi
Agricultural soil-processing machines are subject to an extensive abrasive wear. This paper analyses technical materials and their fitness to exchangeable parts of plough bottoms, such as edge-tools and whole plough cutting edges. There were tested abrasion-resistant steels with different microstruc...
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| Published in | Journal of Central European agriculture Vol. 15; no. 2; p. 119 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Sveuciliste U Zagrebu
01.06.2014
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1332-9049 1332-9049 |
| DOI | 10.5513/JCEA01/15.2.1462 |
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| Abstract | Agricultural soil-processing machines are subject to an extensive abrasive wear. This paper analyses technical materials and their fitness to exchangeable parts of plough bottoms, such as edge-tools and whole plough cutting edges. There were tested abrasion-resistant steels with different microstructures: austenite, martensite-bainite, and carbide. Steel with the pearlite-ferrite structure was used as an etalon. Abrasion resistance tests were processed in compliance with the norm CSN 01 5084, which is a test of abrasion wear on abrasive cloth. |
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| AbstractList | Agricultural soil-processing machines are subject to an extensive abrasive wear. This paper analyses technical materials and their fitness to exchangeable parts of plough bottoms, such as edge-tools and whole plough cutting edges. There were tested abrasion-resistant steels with different microstructures: austenite, martensite-bainite, and carbide. Steel with the pearlite-ferrite structure was used as an etalon. Abrasion resistance tests were processed in compliance with the norm CSN 01 5084, which is a test of abrasion wear on abrasive cloth. Keywords: abrasive-resistant steel, abrasive wear, agriculture, microhardness, structure, soil management Zemedelske stroje pro zpracovani pudy jsou zatizeny znacnym abrazivnim opotrebenim. Predlozeny prispevek analyzuje vhodnost technickych materialu pro vyrobu vymenitelnych casti pluzniho telesa. Jedna se predevsim o dlata i cele pluzni ostri. K testum byly zvoleny oteruvzdorne materialy s rozdilnou mikrostrukturou. Jednalo se o kategorie oceli s mikrostrukturou austenitickou, martenziticko-bainitickou a karbidickou. Jako etalon byla pouzita ocel se strukturou perliticko-feritickou. Testy abrazivni odolnosti byly provedeny dle CSN 01 5084. Jedna se o test abrazivniho opotrebeni na brusnem platne. Klicova slova: abrazivni opotrebeni, mikrotvrdost, oteruvzdorna ocel, struktura, zemedelstvi, zpracovani pudy Vlivem opotrebeni strojnich soucasti dochazi k odstavce celeho stroje nebo dokonce cele vyrobni linky. Jednou z oblasti, kde nastava masivni opotrebeni, je zpracovani pudy. Abrazivni opotrebeni lze tedy definovat jako nezadouci zmenu povrchu nebo rozmeru tuhych teles, zpusobenou bud vzajemnym pusobenim funkcnich povrchu, nebo funkcniho povrchu a abrazivniho media. Cilem predlozeneho prispevku je otestovat vhodnost nekolika technickych oteruvzdornych materialu pro pouziti a vyrobu funkcnich casti zemedelskych stroju na zpracovani pudy. Jedna se o materialy s rozdilnou vnitrni strukturou i mechanickymi vlastnostmi. Jako porovnavaci etalon byla zvolna ocel 12 050. V pocatecni fazi identifikace jednotlivych materialu byla zmerena jejich tvrdost dle CSN EN 23878 (metoda dle Vickerse. Nasledovala analyza vnitrnich strukturnich faz jednotlivych materialu. Dle metalografickych vybrusu byly zjisteny nehomogenity v oceli 12 050. Na pripravenych metalografickych preparatech bylo provedeno rovnez mereni mikrotvrdosti jednotlivych strukturnich fazi. Dle provedenych testu lze konstatovat korelaci mezi tvrdosti, zakladni strukturou i mikrotvrdosti zkousenych vzorku. Pro analyzu abrazivniho opotrebeni byla zvolena zkouska dle CSN 01 5084. Jedna se o stanoveni odolnosti kovovych materialu proti abrazivnimu opotrebeni na pristroj s brusnym platnem. Toto zarizeni bylo zvoleno z duvodu zachovani konstantnich podminek behem zkousky. U zarizeni s volnymi casticemi dochazi pri delsim casovem intervalu trvani zkousky ke znacne degradaci pouzivaneho abrazivniho media. Z vysledku jednotlivych analyz je v zaveru publikace predikovana vhodnost testovanych materialu pro pouziti na vyrobu vymenitelnych funkcnich casti zemedelskych stroju, ktere prichazi do primeho kontaktu s pudou. Agricultural soil-processing machines are subject to an extensive abrasive wear. This paper analyses technical materials and their fitness to exchangeable parts of plough bottoms, such as edge-tools and whole plough cutting edges. There were tested abrasion-resistant steels with different microstructures: austenite, martensite-bainite, and carbide. Steel with the pearlite-ferrite structure was used as an etalon. Abrasion resistance tests were processed in compliance with the norm CSN 01 5084, which is a test of abrasion wear on abrasive cloth. |
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| Author | Votava, Jiri |
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| SubjectTerms | Analysis Hardness Iron compounds Machinery Magneto-electric machines Soil management |
| Title | Usage of abrasion-resistant materials in agriculture/Vyuziti oteruvzdornych materialu v zemedelstvi |
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