Method for non-destructively checking inner and/or surface defects of motor car component made from material e.g. aluminum, involves thermographically performing transient heating- and/or cooling process in component by camera

摘要

The method involves electrostatically charging a component (1) before pulse-thermographic excitation. Coating powder (6) having emission coefficient of nearly 1 is partly electrostatic applied on a surface (4) of the component to be checked turned away to an excitation-side surface (3) of the component. Transient heating- and/or cooling process is thermographically performed in the component due to the emission coefficient of nearly 1 of the coating powder partly electrostatic applied on the surface of the component to be checked by a thermography camera (8).