+86 311 8066 3708
Detection of surface and near surface defects of custom casting parts:
1, liquid penetration test
Liquid penetration test is used to check the defects of various openings on the surface of castings, such as surface crack, surface pinhole and so on.
2, eddy current testing
Eddy current testing is applied to check the surface below the general is not more than 6 ~ 7MM depth of the defects. Eddy current testing method and 2 kinds of coil winding method.
3，magnetic particle inspection
Magnetic particle testing is suitable for the detection of surface defects and the surface of the surface of the following defects, it needs DC magnetic equipment and magnetic powder to detect operation.