13 KB501 KB13 KB200020262004Blagojević, Nada Z.Krgović, MilunVuksanović, DarkoZejak, Radomirletnik:384 straništevilka:6str. 359-362ISSN:1580-2949COBISSID:365994URN:URN:NBN:SI:doc-ZV2R6F6YenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijeformarski pesekformeglinenecjedraInfluence of feldspar content in quartz sand on the properties of mould mixtures for moulds and cores for grey cast iron casting|In this paper the influence of feldspar content in quartz sand on properties and quality of mixtures for moulds and cores for grey cast iron products is presented. Technological tests of coating were performed and the values of cold and hot compressive strength and softening temperature for the samples with and without scale were obtained. Some results are related to mixtures for moulds and cores on the basis of coated sand are presented, alsoOpisan je vpliv vsebnosti glinenca v kremenovem pesku na lastnosti mešanic za forme in jedra za ulivanje sive litine. Izvršeni so bili tehnološki preizkusi oplaščenja in določeni sta bili hladna in vroča tlačna trdnost vzorcev brez dodatka škaje in z njo. Prikazani so tudi nekateri rezultati o mešanicah za forme in jedra iz oplaščenega peskaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije