System of detection of deep internal defects in metal parts manufactured by continuous or intermittent processes of lamination, wire drawing and forging, and corresponding method

摘要

The invention provides a system for detecting inner deep defects of a metal component, wherein the metal component is prepared through continuous or intermittent rolling, wire drawing and forging processes. The system comprises the components of: a power generator for providing AC power, at least two electric coils and a detecting device. The electric coils are coaxially arranged and are separately configured along an axial axis.