Abstract:During grinding the bearing roller, Al2O3 and SiC abrasive inclusions were produced, and these inclusions must be removed because of its bad influence on recycling of steel scrap. The effects of different schemes on removing the impurity from steel scrap were compared, the choice of handling methods before magnetic separation and the magnetic intensity during magnetic separation process were studied. The results show that the method of magnetic separation is the best. Wet milling processing is done for the steel scrap before magnetic separation and smaller magnetic intensity is chosen during magnetic separation process which is beneficial to inclusion removal. The main reason why the Al2O3 and SiC abrasive inclusions can not be completely separated from steel scrap is that there are many holes on the surface of big grain steel scrap, so the fine grain inclusions are embedded in these holes and hard to be separated from steel scrap.