The Effect of Coremaking Parameters on the Thermal Distortion Behavior of Resin-Coated Sand

Budavári, Imre and Varga, László (2020) The Effect of Coremaking Parameters on the Thermal Distortion Behavior of Resin-Coated Sand. Materials Science and Engineering, 45 (1). pp. 37-49. ISSN 2063-6792

Preview

Text ISSN_2063_6792_vol_45_1_2020_eng_037-049.pdf Download (802kB) | Preview

Abstract

In the shell core making process, to achieve precise dimensions, good surface quality, and defect-free casting, it is essential to optimize the proper technological parame-ters. These parameters influence the properties of the core through the curing mechanism of the novolac binder. To avoid uneven deformation or defects during the pouring process, it is very important to understand the complex phenomenon that takes place at the core/metal interface. In the research work, the effect of the curing time and curing temperature on the hot distortion properties of resin coated sand was investigated. Tests were made using Hot-Distortion Tester laboratory equipment, where the deformation and degradation time was measured. It was established, that higher curing temperature and curing time lead to higher deformation and smaller thermal strength of the resin-coated sand cores.

Actions (login required)

Edit Item