Method for producing angular, stainless shot-blasting abrasives based on an FE-CR-C alloy

摘要

A process for producing blasting agent grains from non-corrosive cast stainless steel, in which a granulate is produced first from the melt of an iron-chromium-carbon alloy capable of hardening, said granulate then passing through a thermal treatment for hardening and being subsequently crushed into grains with sharp edges, wherein the thermal treatment is carried out at >900O Celsius in a reducing atmosphere; and that a reducing gas or gas mixture is used for the subsequent cooling step as well.