Experiments concerning the elaboration of Sn based antifriction alloys using recycled materials in the charge

Abstract

Due to the mechanical processing operations, more than 90% of the antifriction alloy cast on the gray iron or steel stand is removed under the form of chips. As the costs incurred by the elaboration of Sn based alloys are very high many attempts have been made in order to obtain these alloys with the addition of chips into the charge and with the elimination of Cd and As. (These two alloying elements are considered cancer generating). The present paper introduces a technology for the elaboration of Sn based antifriction alloys without Cd and As using recycled materials (chips) in the charge.