This standard specifies the requirements of magnaflux to parts surface, inspection equipment, magnetic particle, magnetic suspension liquid, magnetization method, inspection method, magnetization specification, inspection sensitivity calibration and demagnetization.
This standard is applicable to the magnaflux of inspection of diesel injection nozzle, plunger of injection pump and delivery valve of injection pump made from ferromagnetic materials.
2 Normative References
The following documents are essential for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB 253 Kerosine
GB/T 15822.2 Non-destructive Testing - Magnetic Particle Testing - Part 2: Inspection Media
GB/T 23907-2009 Non-destructive Testing - Shims for Magnetic Particle Testing
3 Requirements of Magnaflux to Parts Surface
3.1 The roughness of parts surface shall be Ra3.2μm.
