Franc Zupanič (Author), Tonica Bončina (Author), Alojz Križman (Author), Rebeka Rudolf (Author)

Abstract

V tej raziskavi smo opredelili vpliv procesnih parametrov pri razprševanju jeklene taline na lastnosti visokoogljičnega jeklenega granulata. V sodelovanju s podjetjem Abrasiv Muta smo v industrijskih razmerah razpršili devet šarž jeklene taline ob znanih vrednostih različnih vplivnih parametrov, kot so temperatura in pretok taline, tlak in temperatura razpršilne vode, temperatura in nivo vode v hladilnem bazenu... Rezultati preiskav jeklenega granulata so pokazali, da ima najizrazitejši vpliv tlak razpršilne vode, ki določa velikostno porazdelitev jeklenih kroglic v granulatu, njihovo okroglost ter obrabno obstojnost. Tudi vpliv drugih dejavnikov ni zanemarljiv. Ugotovljeno je, da večje granulacije kroglic vsebujejo večje število napak kot drobne, to pa se kaže tudi v njihovi manjši obrabni sposobnosti.

Keywords

jekleni granulat;velikostna porazdelitev;okroglost;obrabna obstojnost;Ervinov preskus;

Data

Language: Slovenian
Year of publishing:
Typology: 1.04 - Professional Article
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: Inštitut za kovinske materiale in tehnologije
UDC: 669.187:621.924:621.74
COBISS: 165802 Link will open in a new window
ISSN: 1318-0010
Parent publication: Kovine zlitine tehnologije
Views: 687
Downloads: 29
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: Influence of atomising conditions on the properties of a high-carbon cast steel shot
Secondary abstract: In this investigation we studied the influence of processing parameters by melt atomisation on the properties of a high carbon steel shot. We performed atomisation of nine heats in industrial conditions (Abrasiv Muta) by known processing parameters such as temperature and flow rate of the melt, temperature and pressure of the atomising water, temperature and level of water in the cooling pool... It has been found out that the pressure of the atomising water determines in a great extend the size distribution, spheroidity and wear resistance of the cast steel shot, although the influence of other parameters is not negligible. Results also suggest that larger granulation contains more defects than smaller, with consequentional detrimental effects on their wear resistance.
Secondary keywords: high carbon steel shot;size distribution;spheroidity;Ervin test;wear resistance;
URN: URN:NBN:SI
Type (COBISS): Not categorized
Pages: str. 359-363
Volume: ǂLetn. ǂ33
Issue: ǂšt. ǂ5
Chronology: 1999
ID: 1749569