Metallurgy, Vol. 47 No. 1, 2008.
Preliminary communication
The effect of mechanical reclamation on the wear of silica sand grains
M. Łucarz
Abstract
The wear effect of silica sands is usually joined with many foundry processes during the fresh sand preparation. The significant effect of silica grains destruction by means of crushing, abrasion and attrition is caused by most of mechanical reclamation treatments, which leads to a higher sand consumption. The experimental reclaimer was equipped with two different peripheral rings, which enabled both impact and impact-free way of the reclamation treatment of silica grains. In each case the duration of treatment and the rotational speed as well as the number of reclamation cycles were changed and effects were checked by multiple sieve analyses of the sand.
Keywords
foundry; sand testing; mechanical reclamation
Hrčak ID:
17790
URI
Publication date:
1.1.2008.
Visits: 1.334 *