APPARATUS FOR TRAPPING AND COLLECTING METALLIC PARTICLES OF ROLLS IN ROLLING STANDS Russian patent published in 2003 - IPC

FIELD: rolled stock production, possibly rolling sheets and strips of non-ferrous and ferrous metals. SUBSTANCE: apparatus has housing, movable and stationary magnetic blocks, magnetic circuits-poles, non-magnetic gaskets. Apparatus is in the form of panel whose length is equal to that of roll barrel forming cavity in which two units are arranged; one of said units is stationary and it adjoins at side of roll to non-magnetic wall of panel and other unit is movable and it adjoins to magnetic wall of panel. In non-magnetic wall of panel in one of magnetic circuits-poles of stationary unit and in one of magnetic circuits-poles of movable unit there are lengthwise slits that may be matched in one plane at motion of movable unit relative to stationary unit. On magnetic wall of panel having slits in plane containing slits of stationary unit and of non-magnetic wall there is receptacle connected with vacuum system. Apparatus prevents penetration of metallic particles (in the result of roll wear) and other foreign ferromagnetic bodies, for example from emulsion to deformation zone. EFFECT: enhanced quality of strip surface after rolling. 2 dwg